/* roulang page: index */
:root {
      --color-primary: #2563EB;
      --color-primary-hover: #1D4ED8;
      --color-primary-bg: #EFF6FF;
      --color-cyan: #06B6D4;
      --color-orange: #F97316;
      --color-bg: #F5F7FB;
      --color-card: #FFFFFF;
      --color-border: #E2E8F0;
      --color-text: #0F172A;
      --color-text-secondary: #475569;
      --color-text-muted: #64748B;
      --color-footer-bg: #0F172A;
      --radius-card: 12px;
      --radius-btn: 8px;
      --radius-badge: 999px;
      --shadow-card: 0 1px 3px rgba(15,23,42,.06);
      --shadow-card-hover: 0 16px 32px -12px rgba(37,99,235,.18);
      --shadow-nav: 0 4px 12px rgba(15,23,42,.08);
      --font-cn: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      --font-num: "SF UI","Inter","Roboto",sans-serif;
      --section-padding: 80px 0;
      --section-padding-mobile: 48px 0;
      --transition: 180ms ease;
      --transition-faq: 200ms ease-in;
    }

    * {
      box-sizing: border-box;
    }

    html {
      font-size: 16px;
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-cn);
      color: var(--color-text);
      background-color: var(--color-bg);
      line-height: 1.7;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: color var(--transition), background-color var(--transition), border-color var(--transition), box-shadow var(--transition);
    }

    a:hover,
    a:focus {
      color: var(--color-primary);
      outline: none;
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    textarea:focus-visible {
      outline: 3px solid #BFDBFE;
      outline-offset: 2px;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    button,
    input,
    textarea {
      font-family: var(--font-cn);
      font-size: 1rem;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* ===== Header / Nav ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: #fff;
      box-shadow: none;
      transition: box-shadow var(--transition), height var(--transition);
    }

    .site-header.is-sticky {
      box-shadow: var(--shadow-nav);
    }

    .brand-row {
      background: #fff;
      border-bottom: 1px solid var(--color-border);
      height: 40px;
      display: flex;
      align-items: center;
      transition: height 200ms ease, opacity 200ms ease;
    }

    .site-header.is-sticky .brand-row {
      height: 0;
      overflow: hidden;
      opacity: 0;
      border-bottom: none;
    }

    .brand-row-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      width: 100%;
    }

    .brand-logo-wrap {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-shrink: 0;
    }

    .brand-logo-mark {
      width: 28px;
      height: 28px;
      background: var(--color-primary);
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 700;
      font-size: 14px;
      letter-spacing: 1px;
      flex-shrink: 0;
    }

    .brand-logo-text {
      font-size: 16px;
      font-weight: 700;
      color: var(--color-text);
      letter-spacing: .5px;
      white-space: nowrap;
    }

    .brand-search {
      flex: 1;
      max-width: 420px;
      display: flex;
      align-items: center;
      gap: 0;
      border-radius: var(--radius-badge);
      overflow: hidden;
      background: #F8FAFC;
      border: 1px solid var(--color-border);
      transition: border-color var(--transition);
    }

    .brand-search:focus-within {
      border-color: var(--color-primary);
      box-shadow: 0 0 0 3px #BFDBFE;
    }

    .brand-search input {
      border: none;
      outline: none;
      background: transparent;
      padding: 8px 14px;
      font-size: 13px;
      flex: 1;
      min-width: 0;
      color: var(--color-text);
    }

    .brand-search button {
      border: none;
      background: var(--color-primary);
      color: #fff;
      padding: 8px 18px;
      font-size: 13px;
      cursor: pointer;
      transition: background-color var(--transition);
      white-space: nowrap;
    }

    .brand-search button:hover {
      background: var(--color-primary-hover);
    }

    .trend-tags {
      display: flex;
      align-items: center;
      gap: 6px;
      flex-shrink: 0;
      flex-wrap: wrap;
    }

    .trend-tag {
      font-size: 12px;
      padding: 4px 12px;
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-badge);
      color: var(--color-text-secondary);
      white-space: nowrap;
      transition: border-color var(--transition), color var(--transition);
    }

    .trend-tag:hover {
      border-color: var(--color-primary);
      color: var(--color-primary);
    }

    .channel-row {
      background: #fff;
      border-bottom: 1px solid var(--color-border);
      height: 64px;
      display: flex;
      align-items: center;
      transition: height 200ms ease;
    }

    .site-header.is-sticky .channel-row {
      height: 56px;
    }

    .channel-row-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      gap: 8px;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 0;
      flex: 1;
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .main-nav > li {
      margin: 0;
    }

    .main-nav > li > a {
      display: block;
      padding: 20px 14px;
      font-size: 15px;
      font-weight: 500;
      color: var(--color-text-secondary);
      border-bottom: 2px solid transparent;
      transition: color var(--transition), border-color var(--transition);
      white-space: nowrap;
    }

    .site-header.is-sticky .main-nav > li > a {
      padding: 16px 14px;
    }

    .main-nav > li > a:hover,
    .main-nav > li > a:focus {
      color: var(--color-primary);
    }

    .main-nav > li > a.active {
      color: var(--color-primary);
      border-bottom-color: var(--color-primary);
      font-weight: 600;
    }

    .nav-mobile-toggle {
      display: none;
      background: none;
      border: none;
      color: var(--color-text);
      font-size: 22px;
      cursor: pointer;
      padding: 8px;
      transition: color var(--transition);
    }

    .nav-mobile-toggle:hover {
      color: var(--color-primary);
    }

    .mobile-nav-drawer {
      display: none;
      background: #fff;
      border-bottom: 1px solid var(--color-border);
      padding: 12px 20px 16px;
      flex-direction: column;
      gap: 4px;
    }

    .mobile-nav-drawer.open {
      display: flex;
    }

    .mobile-nav-drawer a {
      display: block;
      padding: 10px 0;
      font-size: 15px;
      border-bottom: 1px solid #F1F5F9;
      color: var(--color-text-secondary);
    }

    .mobile-nav-drawer a:last-child {
      border-bottom: none;
    }

    .mobile-nav-drawer a.active {
      color: var(--color-primary);
      font-weight: 600;
    }

    /* ===== Hero ===== */
    .hero {
      position: relative;
      background: #fff;
      overflow: hidden;
      padding: 0;
    }

    .hero-bg {
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/5cca9439a485bfd3.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.12;
      z-index: 0;
    }

    .hero-content {
      position: relative;
      z-index: 1;
      padding: 56px 0 64px;
    }

    .hero-series-nav {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
      margin-bottom: 32px;
      background: rgba(255,255,255,0.75);
      backdrop-filter: blur(8px);
      padding: 10px 16px;
      border-radius: var(--radius-card);
      border: 1px solid var(--color-border);
    }

    .hero-series-label {
      font-size: 13px;
      font-weight: 600;
      color: var(--color-text-secondary);
      margin-right: 4px;
    }

    .hero-series-item {
      font-size: 13px;
      padding: 6px 16px;
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-badge);
      color: var(--color-text-secondary);
      cursor: pointer;
      transition: border-color var(--transition), color var(--transition), background-color var(--transition);
    }

    .hero-series-item:hover {
      border-color: var(--color-primary);
      color: var(--color-primary);
      background: var(--color-primary-bg);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .hero-left {
      padding-right: 0;
    }

    .hero-badge {
      display: inline-block;
      font-size: 13px;
      font-weight: 500;
      color: var(--color-primary);
      background: var(--color-primary-bg);
      padding: 6px 16px;
      border-radius: var(--radius-badge);
      margin-bottom: 16px;
    }

    .hero-title {
      font-size: clamp(28px, 4vw, 40px);
      font-weight: 700;
      line-height: 1.25;
      color: var(--color-text);
      margin: 0 0 16px;
      letter-spacing: .3px;
    }

    .hero-subtitle {
      font-size: 16px;
      line-height: 1.75;
      color: var(--color-text-secondary);
      margin: 0 0 28px;
      max-width: 540px;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-wrap: wrap;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-size: 15px;
      font-weight: 500;
      padding: 12px 24px;
      border-radius: var(--radius-btn);
      border: none;
      cursor: pointer;
      transition: background-color var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
      line-height: 1.4;
    }

    .btn-primary {
      background: var(--color-primary);
      color: #fff;
    }

    .btn-primary:hover {
      background: var(--color-primary-hover);
      color: #fff;
    }

    .btn-primary:active {
      box-shadow: inset 0 2px 4px rgba(0,0,0,.15);
    }

    .btn-outline {
      background: transparent;
      color: var(--color-primary);
      border: 1px solid var(--color-primary);
    }

    .btn-outline:hover {
      background: var(--color-primary-bg);
      color: var(--color-primary);
      border-color: var(--color-primary);
    }

    .btn-link {
      background: none;
      border: none;
      color: var(--color-primary);
      padding: 8px 0;
      font-size: 14px;
      font-weight: 500;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .btn-link:hover {
      text-decoration: underline;
      color: var(--color-primary-hover);
    }

    .hero-right {
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .hero-main-img {
      width: 100%;
      max-width: 520px;
      aspect-ratio: 4/3;
      object-fit: cover;
      border-radius: var(--radius-card);
      box-shadow: 0 20px 40px -16px rgba(37,99,235,.25);
      border: 1px solid rgba(37,99,235,.08);
    }

    .hero-float-card {
      position: absolute;
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card-hover);
      padding: 14px 18px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .hero-float-card-top {
      top: -16px;
      right: 10%;
    }

    .hero-float-card-bottom {
      bottom: -16px;
      left: 5%;
    }

    .float-icon {
      width: 36px;
      height: 36px;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      flex-shrink: 0;
    }

    .float-icon-blue {
      background: var(--color-primary-bg);
      color: var(--color-primary);
    }

    .float-icon-cyan {
      background: #ECFEFF;
      color: var(--color-cyan);
    }

    .float-text {
      font-size: 13px;
      line-height: 1.3;
    }

    .float-text strong {
      display: block;
      font-size: 16px;
      font-weight: 700;
      color: var(--color-text);
    }

    /* ===== Section general ===== */
    .section {
      padding: var(--section-padding);
    }

    .section-alt {
      background: #fff;
    }

    .section-bg {
      background: var(--color-bg);
    }

    .section-header {
      margin-bottom: 40px;
    }

    .section-label {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      color: var(--color-primary);
      background: var(--color-primary-bg);
      padding: 4px 14px;
      border-radius: var(--radius-badge);
      margin-bottom: 12px;
    }

    .section-title {
      font-size: clamp(24px, 3vw, 30px);
      font-weight: 700;
      color: var(--color-text);
      margin: 0 0 12px;
      line-height: 1.35;
    }

    .section-desc {
      font-size: 15px;
      color: var(--color-text-secondary);
      line-height: 1.75;
      max-width: 640px;
      margin: 0;
    }

    /* ===== Cards ===== */
    .card {
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      overflow: hidden;
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
      height: 100%;
      display: flex;
      flex-direction: column;
    }

    .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card-hover);
      border-color: rgba(37,99,235,.2);
    }

    .card-img {
      width: 100%;
      aspect-ratio: 16/9;
      object-fit: cover;
      display: block;
    }

    .card-body {
      padding: 20px 22px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .card-badge-row {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 10px;
      flex-wrap: wrap;
    }

    .badge {
      display: inline-block;
      font-size: 12px;
      font-weight: 500;
      padding: 4px 12px;
      border-radius: var(--radius-badge);
      background: var(--color-primary-bg);
      color: var(--color-primary);
    }

    .badge-cyan {
      background: #ECFEFF;
      color: var(--color-cyan);
    }

    .badge-orange {
      background: #FFF7ED;
      color: var(--color-orange);
    }

    .badge-gray {
      background: #F1F5F9;
      color: var(--color-text-secondary);
    }

    .card-title {
      font-size: 18px;
      font-weight: 600;
      color: var(--color-text);
      margin: 0 0 8px;
      line-height: 1.4;
    }

    .card-summary {
      font-size: 14px;
      color: var(--color-text-secondary);
      line-height: 1.65;
      margin: 0 0 16px;
      flex: 1;
    }

    .card-footer {
      margin-top: auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 8px;
      padding-top: 12px;
      border-top: 1px solid #F1F5F9;
    }

    .card-date {
      font-size: 12px;
      color: var(--color-text-muted);
    }

    .card-link {
      font-size: 13px;
      font-weight: 500;
      color: var(--color-primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .card-link:hover {
      color: var(--color-primary-hover);
      text-decoration: underline;
    }

    /* ===== Service Matrix ===== */
    .service-matrix-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr 1fr;
      gap: 24px;
    }

    .service-card-featured {
      grid-row: span 2;
      background: linear-gradient(135deg, #EFF6FF 0%, #FFFFFF 100%);
      border: 1px solid rgba(37,99,235,.15);
    }

    .service-card {
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
      box-shadow: var(--shadow-card);
    }

    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card-hover);
      border-color: rgba(37,99,235,.2);
    }

    .service-icon {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      flex-shrink: 0;
    }

    .service-icon-blue {
      background: var(--color-primary-bg);
      color: var(--color-primary);
    }

    .service-icon-cyan {
      background: #ECFEFF;
      color: var(--color-cyan);
    }

    .service-icon-orange {
      background: #FFF7ED;
      color: var(--color-orange);
    }

    .service-title {
      font-size: 18px;
      font-weight: 600;
      color: var(--color-text);
      margin: 0;
    }

    .service-desc {
      font-size: 14px;
      color: var(--color-text-secondary);
      line-height: 1.65;
      margin: 0;
      flex: 1;
    }

    .service-link {
      font-size: 13px;
      font-weight: 500;
      color: var(--color-primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .service-link:hover {
      text-decoration: underline;
      color: var(--color-primary-hover);
    }

    /* ===== Stats ===== */
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .stat-card {
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 28px 24px;
      text-align: center;
      transition: transform var(--transition), box-shadow var(--transition);
    }

    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card-hover);
    }

    .stat-number {
      font-size: 36px;
      font-weight: 700;
      color: var(--color-primary);
      font-family: var(--font-num);
      letter-spacing: -1px;
      line-height: 1.2;
      margin-bottom: 6px;
    }

    .stat-label {
      font-size: 15px;
      color: var(--color-text-secondary);
      font-weight: 500;
      margin-bottom: 8px;
    }

    .stat-desc {
      font-size: 13px;
      color: var(--color-text-muted);
      line-height: 1.5;
      margin: 0;
    }

    /* ===== Process ===== */
    .process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .process-step {
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 28px 24px;
      position: relative;
      transition: transform var(--transition), box-shadow var(--transition);
    }

    .process-step:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card-hover);
    }

    .step-number {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      border-radius: 10px;
      background: var(--color-primary-bg);
      color: var(--color-primary);
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .step-title {
      font-size: 17px;
      font-weight: 600;
      color: var(--color-text);
      margin: 0 0 8px;
    }

    .step-desc {
      font-size: 14px;
      color: var(--color-text-secondary);
      line-height: 1.65;
      margin: 0;
    }

    /* ===== Case Wall ===== */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    /* ===== News ===== */
    .news-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .news-item {
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 20px 24px;
      display: flex;
      align-items: flex-start;
      gap: 16px;
      transition: background-color var(--transition), border-color var(--transition);
    }

    .news-item:hover {
      background: #FAFCFF;
      border-color: rgba(37,99,235,.2);
    }

    .news-date-tag {
      flex-shrink: 0;
      background: var(--color-primary-bg);
      color: var(--color-primary);
      font-size: 13px;
      font-weight: 500;
      padding: 6px 14px;
      border-radius: var(--radius-badge);
      white-space: nowrap;
    }

    .news-content {
      flex: 1;
    }

    .news-title {
      font-size: 16px;
      font-weight: 600;
      color: var(--color-text);
      margin: 0 0 8px;
      line-height: 1.45;
    }

    .news-summary {
      font-size: 14px;
      color: var(--color-text-secondary);
      line-height: 1.65;
      margin: 0 0 12px;
    }

    .news-more {
      font-size: 13px;
      font-weight: 500;
      color: var(--color-primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .news-more:hover {
      text-decoration: underline;
      color: var(--color-primary-hover);
    }

    /* ===== Brand Intro ===== */
    .brand-intro {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .brand-intro-img {
      width: 100%;
      aspect-ratio: 4/3;
      object-fit: cover;
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card-hover);
    }

    .brand-intro-text p {
      font-size: 15px;
      color: var(--color-text-secondary);
      line-height: 1.85;
      margin: 0 0 16px;
    }

    .brand-intro-text p:last-child {
      margin-bottom: 0;
    }

    .brand-intro-highlights {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 20px;
    }

    .brand-intro-highlights span {
      font-size: 13px;
      background: var(--color-primary-bg);
      color: var(--color-primary);
      padding: 6px 16px;
      border-radius: var(--radius-badge);
    }

    /* ===== Calendar ===== */
    .calendar-scroll {
      display: flex;
      gap: 16px;
      overflow-x: auto;
      padding-bottom: 16px;
      scroll-snap-type: x proximity;
      -webkit-overflow-scrolling: touch;
    }

    .calendar-scroll::-webkit-scrollbar {
      height: 6px;
    }

    .calendar-scroll::-webkit-scrollbar-track {
      background: #E2E8F0;
      border-radius: 3px;
    }

    .calendar-scroll::-webkit-scrollbar-thumb {
      background: var(--color-primary);
      border-radius: 3px;
    }

    .calendar-card {
      flex: 0 0 280px;
      scroll-snap-align: start;
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 20px;
      transition: transform var(--transition), box-shadow var(--transition);
    }

    .calendar-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card-hover);
    }

    .calendar-date {
      font-size: 14px;
      font-weight: 600;
      color: var(--color-primary);
      margin-bottom: 10px;
    }

    .calendar-event {
      font-size: 16px;
      font-weight: 600;
      color: var(--color-text);
      margin: 0 0 8px;
      line-height: 1.45;
    }

    .calendar-matchup {
      font-size: 14px;
      color: var(--color-text-secondary);
      line-height: 1.6;
      margin: 0;
    }

    /* ===== Hot Guides ===== */
    .guide-grid {
      display: grid;
      grid-template-columns: 1.3fr 1fr;
      gap: 24px;
    }

    .guide-card-lg {
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: transform var(--transition), box-shadow var(--transition);
    }

    .guide-card-lg:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card-hover);
    }

    .guide-card-lg .card-img {
      aspect-ratio: 16/8;
    }

    .guide-card-sm-wrap {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .guide-card-sm {
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 20px 24px;
      display: flex;
      align-items: center;
      gap: 16px;
      transition: transform var(--transition), box-shadow var(--transition);
    }

    .guide-card-sm:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card-hover);
    }

    .guide-sm-icon {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: var(--color-primary-bg);
      color: var(--color-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      flex-shrink: 0;
    }

    /* ===== Hardware ===== */
    .hardware-layout {
      display: grid;
      grid-template-columns: 1.4fr 1fr;
      gap: 24px;
      align-items: stretch;
    }

    .hardware-main-card {
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }

    .hardware-main-img {
      width: 100%;
      aspect-ratio: 16/8;
      object-fit: cover;
    }

    .hardware-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 20px 24px;
    }

    .hardware-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 12px 0;
      border-bottom: 1px solid #F1F5F9;
    }

    .hardware-item:last-child {
      border-bottom: none;
    }

    .hardware-item-left {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .hardware-item-icon {
      width: 36px;
      height: 36px;
      border-radius: 8px;
      background: #F1F5F9;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--color-text-secondary);
      font-size: 14px;
      flex-shrink: 0;
    }

    .hardware-item-name {
      font-size: 14px;
      font-weight: 500;
      color: var(--color-text);
    }

    .hardware-item-rating {
      font-size: 14px;
      font-weight: 600;
      color: var(--color-orange);
      white-space: nowrap;
    }

    /* ===== Stats Leaderboard ===== */
    .leaderboard {
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 24px 28px;
    }

    .leaderboard-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 14px 0;
      border-bottom: 1px solid #F1F5F9;
    }

    .leaderboard-row:last-child {
      border-bottom: none;
    }

    .leaderboard-rank {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      background: var(--color-primary-bg);
      color: var(--color-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 700;
      flex-shrink: 0;
    }

    .leaderboard-rank.top {
      background: #FFF7ED;
      color: var(--color-orange);
    }

    .leaderboard-name {
      flex: 1;
      font-size: 15px;
      font-weight: 500;
      color: var(--color-text);
    }

    .leaderboard-value {
      font-size: 15px;
      font-weight: 600;
      color: var(--color-text);
      white-space: nowrap;
    }

    .leaderboard-change {
      font-size: 13px;
      font-weight: 500;
      color: var(--color-text-muted);
      white-space: nowrap;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .leaderboard-change.up {
      color: #16A34A;
    }

    .leaderboard-change.down {
      color: #DC2626;
    }

    /* ===== Community ===== */
    .community-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .community-card {
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 22px 24px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      transition: transform var(--transition), box-shadow var(--transition);
    }

    .community-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card-hover);
    }

    .community-meta {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: var(--color-text-muted);
    }

    .community-title {
      font-size: 16px;
      font-weight: 600;
      color: var(--color-text);
      margin: 0;
      line-height: 1.45;
    }

    .community-actions {
      display: flex;
      align-items: center;
      gap: 16px;
      font-size: 13px;
      color: var(--color-text-muted);
    }

    /* ===== Partners ===== */
    .partners-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
      justify-content: center;
    }

    .partner-logo {
      font-size: 14px;
      font-weight: 500;
      color: var(--color-text-secondary);
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-badge);
      padding: 8px 20px;
      transition: border-color var(--transition), color var(--transition);
    }

    .partner-logo:hover {
      border-color: var(--color-primary);
      color: var(--color-primary);
    }

    /* ===== FAQ ===== */
    .faq-list {
      max-width: 800px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      overflow: hidden;
    }

    .faq-question {
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--color-text);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      user-select: none;
      transition: background-color var(--transition);
      margin: 0;
      list-style: none;
    }

    .faq-question:hover {
      background: #FAFCFF;
    }

    .faq-toggle {
      flex-shrink: 0;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: var(--color-primary-bg);
      color: var(--color-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      transition: transform var(--transition-faq);
    }

    .faq-item.open .faq-toggle {
      transform: rotate(45deg);
    }

    .faq-answer {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--color-text-secondary);
      line-height: 1.75;
      display: none;
    }

    .faq-item.open .faq-answer {
      display: block;
    }

    /* ===== Guarantee ===== */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .guarantee-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 20px 24px;
    }

    .guarantee-icon {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      background: var(--color-primary-bg);
      color: var(--color-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      flex-shrink: 0;
    }

    .guarantee-text {
      font-size: 14px;
      font-weight: 500;
      color: var(--color-text);
      line-height: 1.5;
    }

    /* ===== CTA ===== */
    .cta-section {
      background: var(--color-primary);
      border-radius: 20px;
      padding: 48px 40px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
      position: relative;
      overflow: hidden;
    }

    .cta-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at top right, rgba(6,182,212,.15) 0%, transparent 50%);
      pointer-events: none;
    }

    .cta-left {
      position: relative;
      z-index: 1;
    }

    .cta-title {
      font-size: clamp(24px, 3vw, 30px);
      font-weight: 700;
      color: #fff;
      margin: 0 0 12px;
      line-height: 1.35;
    }

    .cta-desc {
      font-size: 15px;
      color: rgba(255,255,255,.85);
      line-height: 1.75;
      margin: 0;
      max-width: 480px;
    }

    .cta-form {
      background: #fff;
      border-radius: var(--radius-card);
      padding: 28px 30px;
      box-shadow: 0 20px 40px -12px rgba(0,0,0,.2);
      position: relative;
      z-index: 1;
    }

    .cta-form-group {
      margin-bottom: 16px;
    }

    .cta-form-label {
      display: block;
      font-size: 13px;
      font-weight: 500;
      color: var(--color-text-secondary);
      margin-bottom: 6px;
    }

    .cta-form-input {
      width: 100%;
      padding: 11px 16px;
      border: 1px solid #CBD5E1;
      border-radius: var(--radius-btn);
      font-size: 14px;
      color: var(--color-text);
      transition: border-color var(--transition), box-shadow var(--transition);
      outline: none;
      background: #fff;
    }

    .cta-form-input:focus {
      border-color: var(--color-primary);
      box-shadow: 0 0 0 3px #BFDBFE;
    }

    .cta-form-btn {
      width: 100%;
      background: var(--color-primary);
      color: #fff;
      border: none;
      padding: 12px 20px;
      font-size: 15px;
      font-weight: 500;
      border-radius: var(--radius-btn);
      cursor: pointer;
      transition: background-color var(--transition);
    }

    .cta-form-btn:hover {
      background: var(--color-primary-hover);
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--color-footer-bg);
      color: rgba(255,255,255,.75);
      padding: 56px 0 24px;
      margin-top: 0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 32px;
      margin-bottom: 40px;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
    }

    .footer-brand-mark {
      width: 32px;
      height: 32px;
      background: var(--color-primary);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 14px;
      font-weight: 700;
    }

    .footer-desc {
      font-size: 13px;
      line-height: 1.7;
      color: rgba(255,255,255,.6);
      margin: 0 0 16px;
      max-width: 300px;
    }

    .footer-column-title {
      font-size: 15px;
      font-weight: 600;
      color: #fff;
      margin: 0 0 14px;
    }

    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-links a {
      font-size: 13px;
      color: rgba(255,255,255,.65);
      transition: color var(--transition);
    }

    .footer-links a:hover {
      color: #fff;
    }

    .footer-contact-item {
      display: flex;
      align-items: flex-start;
      gap: 8px;
      font-size: 13px;
      color: rgba(255,255,255,.65);
      margin-bottom: 10px;
      line-height: 1.6;
    }

    .footer-contact-item i {
      margin-top: 4px;
      color: var(--color-cyan);
      font-size: 14px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,.1);
      padding-top: 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      font-size: 13px;
      color: rgba(255,255,255,.55);
    }

    .footer-bottom-links {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    .footer-bottom-links a {
      color: rgba(255,255,255,.65);
      font-size: 13px;
      transition: color var(--transition);
    }

    .footer-bottom-links a:hover {
      color: #fff;
    }

    /* ===== Responsive ===== */
    @media (max-width: 1023px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .hero-right {
        order: -1;
      }

      .hero-main-img {
        max-width: 100%;
        aspect-ratio: 16/8;
      }

      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .process-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .case-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .brand-intro {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .guide-grid {
        grid-template-columns: 1fr;
      }

      .hardware-layout {
        grid-template-columns: 1fr;
      }

      .community-grid {
        grid-template-columns: 1fr;
      }

      .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .cta-section {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 28px;
      }

      .service-matrix-grid {
        grid-template-columns: 1fr 1fr;
      }

      .service-card-featured {
        grid-row: span 1;
        grid-column: span 2;
      }
    }

    @media (max-width: 639px) {
      :root {
        --section-padding: var(--section-padding-mobile);
      }

      .brand-row {
        height: 36px;
      }

      .channel-row {
        height: 56px;
      }

      .trend-tags {
        display: none;
      }

      .brand-search {
        max-width: 160px;
      }

      .main-nav {
        display: none;
      }

      .nav-mobile-toggle {
        display: block;
      }

      .hero-content {
        padding: 32px 0 40px;
      }

      .hero-series-nav {
        margin-bottom: 20px;
        padding: 8px 12px;
        gap: 6px;
      }

      .hero-series-item {
        font-size: 12px;
        padding: 4px 10px;
      }

      .hero-title {
        font-size: 24px;
      }

      .hero-cta-group {
        flex-direction: column;
        align-items: stretch;
      }

      .hero-float-card {
        display: none;
      }

      .stats-grid {
        grid-template-columns: 1fr;
      }

      .process-grid {
        grid-template-columns: 1fr;
      }

      .case-grid {
        grid-template-columns: 1fr;
      }

      .service-matrix-grid {
        grid-template-columns: 1fr;
      }

      .service-card-featured {
        grid-column: span 1;
      }

      .guarantee-grid {
        grid-template-columns: 1fr;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
      }

      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
      }

      .news-item {
        flex-direction: column;
        padding: 16px 20px;
      }

      .leaderboard-row {
        flex-wrap: wrap;
      }
    }

/* roulang page: category3 */
:root {
            --color-primary: #2563EB;
            --color-primary-hover: #1D4ED8;
            --color-primary-bg: #EFF6FF;
            --color-cyan: #06B6D4;
            --color-orange: #F97316;
            --color-bg: #F5F7FB;
            --color-card: #FFFFFF;
            --color-border: #E2E8F0;
            --color-text: #0F172A;
            --color-text-secondary: #475569;
            --color-text-muted: #64748B;
            --color-footer-bg: #0F172A;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 999px;
            --shadow-card: 0 1px 3px rgba(15,23,42,.06);
            --shadow-card-hover: 0 16px 32px -12px rgba(37,99,235,.18);
            --shadow-nav: 0 4px 12px rgba(15,23,42,.08);
            --font-cn: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
            --font-num: "SF UI","Inter","Roboto",sans-serif;
            --section-padding: 80px 0;
            --section-padding-mobile: 48px 0;
            --transition: 180ms ease;
            --transition-faq: 200ms ease-in;
        }
        html {
            font-size: 16px;
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-cn);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition), background-color var(--transition), border-color var(--transition), box-shadow var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--color-primary);
            outline: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid #BFDBFE;
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: var(--font-cn);
            font-size: 1rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .grid-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            box-shadow: none;
            transition: box-shadow var(--transition), height var(--transition);
        }
        .site-header.is-sticky {
            box-shadow: var(--shadow-nav);
        }
        .brand-row {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            height: 40px;
            display: flex;
            align-items: center;
            transition: height 200ms ease, opacity 200ms ease;
            overflow: hidden;
        }
        .site-header.is-sticky .brand-row {
            height: 0;
            opacity: 0;
            border-bottom: none;
        }
        .brand-row-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
        }
        .brand-logo-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .brand-logo-mark {
            width: 28px;
            height: 28px;
            background: var(--color-primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 1px;
            flex-shrink: 0;
        }
        .brand-logo-text {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: .5px;
            white-space: nowrap;
        }
        .brand-search {
            flex: 1;
            max-width: 420px;
            display: flex;
            align-items: center;
            gap: 0;
            border-radius: var(--radius-badge);
            overflow: hidden;
            background: #F8FAFC;
            border: 1px solid var(--color-border);
            transition: border-color var(--transition);
        }
        .brand-search:focus-within {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px #BFDBFE;
        }
        .brand-search input {
            border: none;
            outline: none;
            background: transparent;
            padding: 8px 14px;
            font-size: 13px;
            flex: 1;
            min-width: 0;
            color: var(--color-text);
        }
        .brand-search button {
            border: none;
            background: var(--color-primary);
            color: #fff;
            padding: 8px 18px;
            font-size: 13px;
            cursor: pointer;
            transition: background-color var(--transition);
            white-space: nowrap;
        }
        .brand-search button:hover {
            background: var(--color-primary-hover);
        }
        .trend-tags {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }
        .trend-tag {
            font-size: 12px;
            padding: 4px 12px;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-badge);
            color: var(--color-text-secondary);
            white-space: nowrap;
            transition: border-color var(--transition), color var(--transition);
        }
        .trend-tag:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .channel-row {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            height: 64px;
            display: flex;
            align-items: center;
            transition: height 200ms ease;
        }
        .site-header.is-sticky .channel-row {
            height: 56px;
        }
        .channel-row-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 8px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0;
            flex: 1;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .main-nav > li {
            margin: 0;
        }
        .main-nav > li > a {
            display: block;
            padding: 20px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition);
            white-space: nowrap;
        }
        .site-header.is-sticky .main-nav > li > a {
            padding: 16px 14px;
        }
        .main-nav > li > a:hover,
        .main-nav > li > a:focus {
            color: var(--color-primary);
        }
        .main-nav > li > a.active {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
            font-weight: 600;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--color-text);
            font-size: 24px;
            cursor: pointer;
            padding: 8px;
            flex-shrink: 0;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-text-muted);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb .separator {
            color: #94A3B8;
        }
        .breadcrumb .current {
            color: var(--color-text-secondary);
            font-weight: 500;
        }

        /* ===== Category Banner ===== */
        .category-banner {
            padding: 40px 0 32px;
            background: #fff;
            border-bottom: 1px solid var(--color-border);
        }
        .category-banner .banner-content {
            max-width: 820px;
        }
        .category-banner h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 12px;
            line-height: 1.3;
        }
        .category-banner .banner-desc {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== Filter Bar ===== */
        .filter-bar {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            padding: 14px 0;
        }
        .filter-bar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .filter-tabs {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-tab {
            font-size: 13px;
            padding: 6px 16px;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-badge);
            color: var(--color-text-secondary);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .filter-tab:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .filter-tab.active {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
        }
        .filter-sort {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-muted);
        }
        .filter-sort select {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 6px 12px;
            font-size: 13px;
            color: var(--color-text);
            background: #fff;
            cursor: pointer;
            outline: none;
            transition: border-color var(--transition);
        }
        .filter-sort select:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px #BFDBFE;
        }

        /* ===== Section Common ===== */
        .content-section {
            padding: 48px 0;
        }
        .content-section.alt-bg {
            background: #fff;
        }
        .section-header {
            margin-bottom: 28px;
        }
        .section-header h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 6px;
            line-height: 1.3;
        }
        .section-header .section-sub {
            font-size: 14px;
            color: var(--color-text-muted);
            margin: 0;
        }

        /* ===== Review List ===== */
        .review-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }
        .review-card {
            display: flex;
            gap: 16px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 18px;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
        }
        .review-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: #BFDBFE;
        }
        .review-card .review-thumb {
            width: 140px;
            height: 96px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
        }
        .review-card .review-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .review-card .review-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 6px;
            min-width: 0;
        }
        .review-card .review-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .review-card .review-date {
            font-size: 12px;
            color: var(--color-text-muted);
            font-family: var(--font-num);
        }
        .review-card .review-badge {
            font-size: 12px;
            padding: 3px 10px;
            background: var(--color-primary-bg);
            color: var(--color-primary);
            border-radius: var(--radius-badge);
            font-weight: 500;
            white-space: nowrap;
        }
        .review-card .review-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.4;
            margin: 0;
        }
        .review-card .review-title a:hover {
            color: var(--color-primary);
        }
        .review-card .review-summary {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.6;
            margin: 0;
        }
        .review-card .read-more {
            align-self: flex-start;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition);
        }
        .review-card .read-more:hover {
            gap: 8px;
            text-decoration: underline;
        }

        /* ===== Ranking Sidebar / Bar ===== */
        .ranking-panel {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-card);
        }
        .ranking-panel .ranking-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            margin: 0 0 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .ranking-panel .ranking-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .ranking-panel .ranking-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border-radius: 8px;
            background: #F8FAFC;
            transition: background-color var(--transition);
        }
        .ranking-panel .ranking-item:hover {
            background: var(--color-primary-bg);
        }
        .ranking-panel .rank-num {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            font-family: var(--font-num);
            color: #fff;
            flex-shrink: 0;
        }
        .rank-num.rank-1 { background: var(--color-orange); }
        .rank-num.rank-2 { background: var(--color-cyan); }
        .rank-num.rank-3 { background: #94A3B8; }
        .rank-num.rank-4,
        .rank-num.rank-5 { background: #CBD5E1; color: var(--color-text-secondary); }
        .ranking-panel .rank-name {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text);
            flex: 1;
        }
        .ranking-panel .rank-score {
            font-size: 14px;
            font-weight: 700;
            font-family: var(--font-num);
            color: var(--color-primary);
        }
        .ranking-panel .rank-change {
            font-size: 12px;
            font-family: var(--font-num);
            display: flex;
            align-items: center;
            gap: 2px;
            font-weight: 600;
        }
        .rank-change.up { color: #10B981; }
        .rank-change.down { color: #EF4444; }
        .rank-change.flat { color: var(--color-text-muted); }

        /* ===== Featured Topics ===== */
        .featured-topics {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .featured-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition);
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .featured-card .featured-thumb {
            width: 100%;
            height: 160px;
            overflow: hidden;
        }
        .featured-card .featured-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .featured-card .featured-body {
            padding: 16px 18px 18px;
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex: 1;
        }
        .featured-card .featured-tag {
            font-size: 12px;
            padding: 3px 10px;
            background: var(--color-primary-bg);
            color: var(--color-primary);
            border-radius: var(--radius-badge);
            align-self: flex-start;
            font-weight: 500;
        }
        .featured-card .featured-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.4;
            margin: 0;
        }
        .featured-card .featured-summary {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== Category Entries ===== */
        .category-entries {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 12px;
        }
        .category-entry {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 18px 14px;
            text-align: center;
            transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        .category-entry:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .category-entry .entry-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--color-primary-bg);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }
        .category-entry .entry-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
        }
        .faq-heading {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 16px;
        }
        .faq-item {
            border-bottom: 1px solid var(--color-border);
            padding: 14px 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            transition: color var(--transition);
            background: none;
            border: none;
            padding: 0;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-icon {
            flex-shrink: 0;
            font-size: 16px;
            color: var(--color-text-muted);
            transition: transform var(--transition-faq), color var(--transition);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--color-primary);
        }
        .faq-answer {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 8px 0 0;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-card);
            padding: 32px 28px;
            text-align: center;
            box-shadow: 0 16px 32px -12px rgba(37,99,235,.28);
        }
        .cta-section h2 {
            font-size: 22px;
            font-weight: 700;
            margin: 0 0 8px;
            color: #fff;
        }
        .cta-section p {
            font-size: 14px;
            color: rgba(255,255,255,.85);
            margin: 0 0 18px;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--color-primary);
            font-size: 14px;
            font-weight: 600;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            transition: background-color var(--transition), transform var(--transition);
        }
        .cta-btn:hover {
            background: var(--color-primary-bg);
            transform: translateY(-2px);
            color: var(--color-primary-hover);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-footer-bg);
            color: #fff;
            margin-top: 60px;
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 28px;
            padding-bottom: 28px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-brand-mark {
            width: 32px;
            height: 32px;
            background: var(--color-primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 16px;
        }
        .footer-desc {
            font-size: 13px;
            color: #94A3B8;
            line-height: 1.7;
            margin: 0;
        }
        .footer-column-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 14px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links a {
            font-size: 13px;
            color: #94A3B8;
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: #94A3B8;
            margin-bottom: 8px;
        }
        .footer-contact-item i {
            color: var(--color-primary);
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid #1E293B;
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: #94A3B8;
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-bottom-links a {
            color: #94A3B8;
            transition: color var(--transition);
        }
        .footer-bottom-links a:hover {
            color: #fff;
        }
        .footer-bottom-links span {
            color: #475569;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .main-nav > li > a {
                padding: 20px 10px;
                font-size: 14px;
            }
            .site-header.is-sticky .main-nav > li > a {
                padding: 16px 10px;
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
            .footer-grid > div:last-child {
                grid-column: span 2;
            }
            .category-entries {
                grid-template-columns: repeat(3, 1fr);
            }
            .featured-topics {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-padding: var(--section-padding-mobile);
            }
            .brand-row {
                height: auto;
                padding: 8px 0;
            }
            .brand-row-inner {
                flex-wrap: wrap;
                gap: 8px;
            }
            .brand-search {
                max-width: 100%;
                order: 3;
                width: 100%;
            }
            .trend-tags {
                display: none;
            }
            .channel-row {
                height: 56px;
            }
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-nav);
                padding: 8px 0;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav > li > a {
                padding: 10px 20px;
                border-bottom: none;
                width: 100%;
            }
            .site-header.is-sticky .main-nav > li > a {
                padding: 10px 20px;
            }
            .main-nav > li > a.active {
                font-weight: 600;
                background: var(--color-primary-bg);
            }
            .filter-bar-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .review-card {
                flex-direction: column;
            }
            .review-card .review-thumb {
                width: 100%;
                height: 160px;
            }
            .featured-topics {
                grid-template-columns: 1fr;
            }
            .category-entries {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid > div:last-child {
                grid-column: span 2;
            }
        }
        @media (max-width: 520px) {
            .category-banner h1 {
                font-size: 24px;
            }
            .section-header h2 {
                font-size: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid > div:last-child {
                grid-column: span 1;
            }
            .category-entries {
                grid-template-columns: 1fr 1fr;
            }
            .cta-section {
                padding: 24px 18px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #2563EB;
            --color-primary-hover: #1D4ED8;
            --color-primary-bg: #EFF6FF;
            --color-cyan: #06B6D4;
            --color-orange: #F97316;
            --color-bg: #F5F7FB;
            --color-card: #FFFFFF;
            --color-border: #E2E8F0;
            --color-text: #0F172A;
            --color-text-secondary: #475569;
            --color-text-muted: #64748B;
            --color-footer-bg: #0F172A;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 999px;
            --shadow-card: 0 1px 3px rgba(15,23,42,.06);
            --shadow-card-hover: 0 16px 32px -12px rgba(37,99,235,.18);
            --shadow-nav: 0 4px 12px rgba(15,23,42,.08);
            --font-cn: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
            --font-num: "SF UI","Inter","Roboto",sans-serif;
            --section-padding: 80px 0;
            --section-padding-mobile: 48px 0;
            --transition: 180ms ease;
            --transition-faq: 200ms ease-in;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            font-size: 16px;
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-cn);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition), background-color var(--transition), border-color var(--transition), box-shadow var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--color-primary);
            outline: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid #BFDBFE;
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-cn);
            font-size: 1rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }
        section {
            padding: var(--section-padding);
        }
        @media (max-width: 639px) {
            section {
                padding: var(--section-padding-mobile);
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            box-shadow: none;
            transition: box-shadow var(--transition), height var(--transition);
        }
        .site-header.is-sticky {
            box-shadow: var(--shadow-nav);
        }
        .brand-row {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            height: 40px;
            display: flex;
            align-items: center;
            transition: height 200ms ease, opacity 200ms ease;
        }
        .site-header.is-sticky .brand-row {
            height: 0;
            overflow: hidden;
            opacity: 0;
            border-bottom: none;
        }
        .brand-row-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
        }
        .brand-logo-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .brand-logo-mark {
            width: 28px;
            height: 28px;
            background: var(--color-primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 1px;
            flex-shrink: 0;
        }
        .brand-logo-text {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: .5px;
            white-space: nowrap;
        }
        .brand-search {
            flex: 1;
            max-width: 420px;
            display: flex;
            align-items: center;
            gap: 0;
            border-radius: var(--radius-badge);
            overflow: hidden;
            background: #F8FAFC;
            border: 1px solid var(--color-border);
            transition: border-color var(--transition);
        }
        .brand-search:focus-within {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px #BFDBFE;
        }
        .brand-search input {
            border: none;
            outline: none;
            background: transparent;
            padding: 8px 14px;
            font-size: 13px;
            flex: 1;
            min-width: 0;
            color: var(--color-text);
        }
        .brand-search button {
            border: none;
            background: var(--color-primary);
            color: #fff;
            padding: 8px 18px;
            font-size: 13px;
            cursor: pointer;
            transition: background-color var(--transition);
            white-space: nowrap;
        }
        .brand-search button:hover {
            background: var(--color-primary-hover);
        }
        .trend-tags {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }
        .trend-tag {
            font-size: 12px;
            padding: 4px 12px;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-badge);
            color: var(--color-text-secondary);
            white-space: nowrap;
            transition: border-color var(--transition), color var(--transition);
        }
        .trend-tag:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .channel-row {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            height: 64px;
            display: flex;
            align-items: center;
            transition: height 200ms ease;
        }
        .site-header.is-sticky .channel-row {
            height: 56px;
        }
        .channel-row-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 8px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0;
            flex: 1;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .main-nav > li {
            margin: 0;
        }
        .main-nav > li > a {
            display: block;
            padding: 20px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition);
            white-space: nowrap;
        }
        .site-header.is-sticky .main-nav > li > a {
            padding: 16px 14px;
        }
        .main-nav > li > a:hover,
        .main-nav > li > a:focus {
            color: var(--color-primary);
        }
        .main-nav > li > a.active {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
            font-weight: 600;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--color-text);
            padding: 8px;
            border-radius: 6px;
            transition: background-color var(--transition);
        }
        .nav-toggle:hover {
            background: var(--color-primary-bg);
        }
        @media (max-width: 1023px) {
            .trend-tags {
                display: none;
            }
            .brand-search {
                max-width: 240px;
            }
            .main-nav > li > a {
                padding: 20px 8px;
                font-size: 13px;
            }
            .site-header.is-sticky .main-nav > li > a {
                padding: 16px 8px;
            }
        }
        @media (max-width: 767px) {
            .brand-search {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--color-border);
                box-shadow: 0 8px 16px rgba(15,23,42,.08);
                padding: 8px 0;
                z-index: 99;
            }
            .main-nav.is-open {
                display: flex;
            }
            .main-nav > li {
                width: 100%;
            }
            .main-nav > li > a {
                padding: 14px 20px;
                border-bottom: none;
                font-size: 15px;
                border-left: 3px solid transparent;
            }
            .main-nav > li > a.active {
                border-left-color: var(--color-primary);
                border-bottom: none;
                background: var(--color-primary-bg);
            }
            .channel-row {
                height: 56px;
            }
            .site-header.is-sticky .channel-row {
                height: 52px;
            }
        }

        /* ===== Breadcrumb & Category Banner ===== */
        .category-banner {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            padding: 32px 0 28px;
        }
        .breadcrumb {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
        }
        .breadcrumb a {
            color: var(--color-text-muted);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb .separator {
            color: #CBD5E1;
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--color-text-secondary);
            font-weight: 500;
        }
        .category-banner h1 {
            font-size: 34px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 12px;
            line-height: 1.3;
            letter-spacing: .5px;
        }
        .category-banner .banner-desc {
            font-size: 15px;
            color: var(--color-text-secondary);
            max-width: 820px;
            margin: 0;
            line-height: 1.8;
        }
        .banner-highlight {
            color: var(--color-primary);
            font-weight: 600;
        }
        @media (max-width: 639px) {
            .category-banner h1 {
                font-size: 26px;
            }
            .category-banner .banner-desc {
                font-size: 14px;
            }
        }

        /* ===== Filter Toolbar ===== */
        .filter-toolbar-section {
            padding: 20px 0 12px;
            background: var(--color-bg);
        }
        .filter-toolbar {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 14px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-card);
        }
        .filter-tabs {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .filter-tab {
            padding: 7px 16px;
            font-size: 13px;
            border-radius: var(--radius-badge);
            border: 1px solid var(--color-border);
            background: #fff;
            color: var(--color-text-secondary);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            font-weight: 500;
        }
        .filter-tab:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .filter-tab.active {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
            font-weight: 600;
        }
        .filter-sort {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-muted);
        }
        .filter-sort select {
            padding: 7px 14px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            background: #fff;
            color: var(--color-text-secondary);
            font-size: 13px;
            cursor: pointer;
            transition: border-color var(--transition);
        }
        .filter-sort select:focus {
            border-color: var(--color-primary);
            outline: none;
        }
        @media (max-width: 639px) {
            .filter-toolbar {
                flex-direction: column;
                align-items: flex-start;
                padding: 12px 16px;
            }
            .filter-tabs {
                gap: 4px;
            }
            .filter-tab {
                padding: 6px 12px;
                font-size: 12px;
            }
        }

        /* ===== Main Content Layout ===== */
        .main-content {
            padding: 32px 0 64px;
        }
        .content-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 28px;
            align-items: start;
        }
        @media (max-width: 1023px) {
            .content-layout {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Article List ===== */
        .article-list-section {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .article-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            display: grid;
            grid-template-columns: 220px 1fr;
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .article-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .article-card .article-image {
            position: relative;
            min-height: 160px;
            background: #E2E8F0;
        }
        .article-card .article-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            top: 0;
            left: 0;
        }
        .article-card .article-body {
            padding: 18px 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .article-card .article-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .article-card .article-date {
            font-size: 12px;
            color: var(--color-text-muted);
            font-family: var(--font-num);
            letter-spacing: .3px;
        }
        .article-card .article-badge {
            font-size: 12px;
            padding: 3px 12px;
            border-radius: var(--radius-badge);
            background: var(--color-primary-bg);
            color: var(--color-primary);
            font-weight: 500;
            white-space: nowrap;
        }
        .article-card .article-badge.cyan {
            background: #ECFEFF;
            color: var(--color-cyan);
        }
        .article-card .article-badge.orange {
            background: #FFF7ED;
            color: var(--color-orange);
        }
        .article-card h2 {
            font-size: 18px;
            font-weight: 600;
            margin: 0;
            line-height: 1.5;
            color: var(--color-text);
        }
        .article-card h2 a:hover {
            color: var(--color-primary);
        }
        .article-card .article-excerpt {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.75;
            flex: 1;
        }
        .article-card .article-read-more {
            font-size: 13px;
            color: var(--color-primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition), gap var(--transition);
        }
        .article-card .article-read-more:hover {
            color: var(--color-primary-hover);
            gap: 8px;
        }
        @media (max-width: 639px) {
            .article-card {
                grid-template-columns: 1fr;
            }
            .article-card .article-image {
                min-height: 180px;
            }
            .article-card .article-body {
                padding: 16px;
            }
        }

        /* ===== Sidebar ===== */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .sidebar-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 20px;
        }
        .sidebar-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i {
            color: var(--color-primary);
            font-size: 16px;
        }
        .rank-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 12px;
            border-radius: 8px;
            background: #F8FAFC;
            border: 1px solid transparent;
            transition: all var(--transition);
        }
        .rank-item:hover {
            background: var(--color-primary-bg);
            border-color: #BFDBFE;
        }
        .rank-number {
            font-size: 15px;
            font-weight: 700;
            font-family: var(--font-num);
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 6px;
            background: #E2E8F0;
            color: var(--color-text-muted);
            flex-shrink: 0;
        }
        .rank-item:nth-child(1) .rank-number {
            background: #FEF3C7;
            color: #D97706;
        }
        .rank-item:nth-child(2) .rank-number {
            background: #E0E7FF;
            color: #4F46E5;
        }
        .rank-item:nth-child(3) .rank-number {
            background: #FCE4EC;
            color: #DB2777;
        }
        .rank-info {
            flex: 1;
            min-width: 0;
        }
        .rank-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .rank-team-tag {
            font-size: 12px;
            color: var(--color-text-muted);
        }
        .rank-change {
            font-size: 13px;
            font-weight: 600;
            font-family: var(--font-num);
            white-space: nowrap;
        }
        .rank-change.up {
            color: #16A34A;
        }
        .rank-change.down {
            color: #DC2626;
        }
        .rank-change.flat {
            color: var(--color-text-muted);
        }

        /* ===== Featured Section ===== */
        .featured-section {
            padding: 40px 0 56px;
            background: #fff;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .featured-section h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 24px;
            letter-spacing: .3px;
        }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .featured-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition);
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .featured-card .featured-image {
            position: relative;
            aspect-ratio: 16/9;
            background: #E2E8F0;
            overflow: hidden;
        }
        .featured-card .featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .featured-card .featured-image .featured-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px 16px 10px;
            background: linear-gradient(transparent, rgba(15,23,42,.55));
        }
        .featured-card .featured-body {
            padding: 16px 18px 18px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }
        .featured-card .featured-badge {
            font-size: 12px;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            background: var(--color-primary-bg);
            color: var(--color-primary);
            font-weight: 500;
            align-self: flex-start;
        }
        .featured-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin: 0;
            line-height: 1.5;
            color: var(--color-text);
        }
        .featured-card p {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.7;
            flex: 1;
        }
        .featured-card .featured-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .featured-card .featured-link:hover {
            color: var(--color-primary-hover);
        }
        @media (max-width: 1023px) {
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 639px) {
            .featured-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Category Entry Grid ===== */
        .category-entry-section {
            padding: 48px 0 56px;
            background: var(--color-bg);
        }
        .category-entry-section h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 20px;
        }
        .category-entry-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 12px;
        }
        .category-entry-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 18px 14px;
            text-align: center;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        .category-entry-card:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .category-entry-card i {
            font-size: 22px;
            color: var(--color-primary);
        }
        .category-entry-card span {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-secondary);
            white-space: nowrap;
        }
        .category-entry-card:hover span {
            color: var(--color-primary);
        }
        @media (max-width: 1023px) {
            .category-entry-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 639px) {
            .category-entry-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
            .category-entry-card {
                padding: 14px 10px;
            }
            .category-entry-card i {
                font-size: 18px;
            }
            .category-entry-card span {
                font-size: 12px;
            }
        }

        /* ===== Subscribe CTA ===== */
        .subscribe-cta {
            background: #fff;
            border-top: 1px solid var(--color-border);
            padding: 48px 0 56px;
        }
        .subscribe-cta-inner {
            background: var(--color-primary-bg);
            border: 1px solid #BFDBFE;
            border-radius: var(--radius-card);
            padding: 36px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .subscribe-cta-text h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 6px;
        }
        .subscribe-cta-text p {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin: 0;
        }
        .subscribe-cta-actions {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--color-primary-hover);
            color: #fff;
        }
        .btn-primary:active {
            box-shadow: inset 0 2px 4px rgba(0,0,0,.15);
            background: #1E40AF;
        }
        .btn-outline {
            background: #fff;
            color: var(--color-primary);
            border: 1px solid var(--color-primary);
        }
        .btn-outline:hover {
            background: var(--color-primary-bg);
            color: var(--color-primary-hover);
            border-color: var(--color-primary-hover);
        }
        @media (max-width: 639px) {
            .subscribe-cta-inner {
                padding: 24px 18px;
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-cta-actions {
                width: 100%;
            }
            .btn {
                flex: 1;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-footer-bg);
            color: #E2E8F0;
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand-mark {
            width: 32px;
            height: 32px;
            background: var(--color-primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 16px;
        }
        .footer-desc {
            font-size: 13px;
            color: #94A3B8;
            line-height: 1.7;
            margin: 0;
        }
        .footer-column-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 14px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links a {
            color: #94A3B8;
            font-size: 13px;
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-contact-item {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 13px;
            color: #94A3B8;
            margin-bottom: 10px;
        }
        .footer-contact-item i {
            color: var(--color-primary);
            font-size: 14px;
            margin-top: 3px;
            flex-shrink: 0;
        }
        .footer-bottom {
            border-top: 1px solid #1E293B;
            padding-top: 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: #94A3B8;
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-bottom-links a {
            color: #94A3B8;
            transition: color var(--transition);
        }
        .footer-bottom-links a:hover {
            color: #fff;
        }
        @media (max-width: 1023px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 639px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #2563EB;
            --color-primary-hover: #1D4ED8;
            --color-primary-bg: #EFF6FF;
            --color-cyan: #06B6D4;
            --color-orange: #F97316;
            --color-bg: #F5F7FB;
            --color-card: #FFFFFF;
            --color-border: #E2E8F0;
            --color-text: #0F172A;
            --color-text-secondary: #475569;
            --color-text-muted: #64748B;
            --color-footer-bg: #0F172A;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 999px;
            --shadow-card: 0 1px 3px rgba(15, 23, 42, .06);
            --shadow-card-hover: 0 16px 32px -12px rgba(37, 99, 235, .18);
            --shadow-nav: 0 4px 12px rgba(15, 23, 42, .08);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "SF UI", "Inter", "Roboto", sans-serif;
            --section-padding: 80px 0;
            --section-padding-mobile: 48px 0;
            --transition: 180ms ease;
            --transition-faq: 200ms ease-in;
        }

        :root {
            --section-padding: var(--section-padding-mobile);
        }

        html {
            font-size: 16px;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-cn);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition), background-color var(--transition), border-color var(--transition), box-shadow var(--transition);
        }

        a:hover,
        a:focus {
            color: var(--color-primary);
            outline: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid #BFDBFE;
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        textarea {
            font-family: var(--font-cn);
            font-size: 1rem;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            box-shadow: none;
            transition: box-shadow var(--transition), height var(--transition);
        }

        .site-header.is-sticky {
            box-shadow: var(--shadow-nav);
        }

        .brand-row {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            height: 40px;
            display: flex;
            align-items: center;
            transition: height 200ms ease, opacity 200ms ease;
            overflow: hidden;
        }

        .site-header.is-sticky .brand-row {
            height: 0;
            opacity: 0;
            border-bottom: none;
        }

        .brand-row-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
        }

        .brand-logo-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .brand-logo-mark {
            width: 28px;
            height: 28px;
            background: var(--color-primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 1px;
            flex-shrink: 0;
        }

        .brand-logo-text {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: .5px;
            white-space: nowrap;
        }

        .brand-search {
            flex: 1;
            max-width: 420px;
            display: flex;
            align-items: center;
            gap: 0;
            border-radius: var(--radius-badge);
            overflow: hidden;
            background: #F8FAFC;
            border: 1px solid var(--color-border);
            transition: border-color var(--transition);
        }

        .brand-search:focus-within {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px #BFDBFE;
        }

        .brand-search input {
            border: none;
            outline: none;
            background: transparent;
            padding: 8px 14px;
            font-size: 13px;
            flex: 1;
            min-width: 0;
            color: var(--color-text);
        }

        .brand-search button {
            border: none;
            background: var(--color-primary);
            color: #fff;
            padding: 8px 18px;
            font-size: 13px;
            cursor: pointer;
            transition: background-color var(--transition);
            white-space: nowrap;
        }

        .brand-search button:hover {
            background: var(--color-primary-hover);
        }

        .trend-tags {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        .trend-tag {
            font-size: 12px;
            padding: 4px 12px;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-badge);
            color: var(--color-text-secondary);
            white-space: nowrap;
            transition: border-color var(--transition), color var(--transition);
        }

        .trend-tag:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .channel-row {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            height: 64px;
            display: flex;
            align-items: center;
            transition: height 200ms ease;
        }

        .site-header.is-sticky .channel-row {
            height: 56px;
        }

        .channel-row-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 8px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0;
            flex: 1;
            list-style: none;
            margin: 0;
            padding: 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }

        .main-nav::-webkit-scrollbar {
            display: none;
        }

        .main-nav>li {
            margin: 0;
            flex-shrink: 0;
        }

        .main-nav>li>a {
            display: block;
            padding: 20px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition);
            white-space: nowrap;
        }

        .site-header.is-sticky .main-nav>li>a {
            padding: 16px 14px;
        }

        .main-nav>li>a:hover,
        .main-nav>li>a:focus {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
        }

        .main-nav>li>a.active {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
            font-weight: 600;
        }

        /* ===== Section Base ===== */
        .section {
            padding: var(--section-padding);
        }

        .section-alt {
            background: #fff;
        }

        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-muted);
            margin-bottom: 32px;
            max-width: 680px;
            line-height: 1.7;
        }

        .section-head {
            margin-bottom: 28px;
        }

        .section-head-with-link {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .section-head-with-link .section-title {
            margin-bottom: 0;
        }

        .text-link {
            color: var(--color-primary);
            font-weight: 500;
            font-size: 14px;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .text-link:hover {
            color: var(--color-primary-hover);
            text-decoration: underline;
        }

        /* ===== Category Banner ===== */
        .category-banner {
            background: linear-gradient(135deg, #EFF6FF 0%, #F5F7FB 55%, #FFFFFF 100%);
            padding: 40px 0 36px;
            border-bottom: 1px solid var(--color-border);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-text-secondary);
            transition: color var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--color-primary);
        }

        .breadcrumb .sep {
            color: #CBD5E1;
            font-size: 11px;
        }

        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 500;
        }

        .category-banner h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 10px;
            line-height: 1.3;
            letter-spacing: .5px;
        }

        .category-banner-desc {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            max-width: 780px;
            line-height: 1.75;
            margin: 0;
        }

        /* ===== Filter Toolbar ===== */
        .filter-toolbar {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 14px 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 20px;
            box-shadow: var(--shadow-card);
        }

        .filter-tags {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .filter-tag {
            font-size: 13px;
            padding: 6px 16px;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-badge);
            color: var(--color-text-secondary);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .filter-tag:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: var(--color-primary-bg);
        }

        .filter-tag.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }

        .filter-sort {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .filter-sort label {
            font-size: 13px;
            color: var(--color-text-muted);
            white-space: nowrap;
        }

        .filter-sort select {
            font-size: 13px;
            padding: 6px 12px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            background: #fff;
            color: var(--color-text-secondary);
            cursor: pointer;
            outline: none;
            transition: border-color var(--transition);
            font-family: var(--font-cn);
        }

        .filter-sort select:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px #BFDBFE;
        }

        /* ===== Guide List Main ===== */
        .guide-list-section {
            padding: 36px 0 56px;
        }

        .guide-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .guide-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px;
            display: flex;
            gap: 20px;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
            align-items: flex-start;
        }

        .guide-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: #CBD5E1;
        }

        .guide-item-thumb {
            flex-shrink: 0;
            width: 180px;
            height: 120px;
            border-radius: 8px;
            overflow: hidden;
            background: #E2E8F0;
            position: relative;
        }

        .guide-item-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .guide-item-body {
            flex: 1;
            min-width: 0;
        }

        .guide-item-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 8px;
        }

        .guide-badge {
            font-size: 12px;
            padding: 3px 12px;
            background: var(--color-primary-bg);
            color: var(--color-primary);
            border-radius: var(--radius-badge);
            font-weight: 500;
            white-space: nowrap;
        }

        .guide-date {
            font-size: 12px;
            color: var(--color-text-muted);
            font-family: var(--font-num);
            letter-spacing: .3px;
        }

        .guide-item-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--color-text);
            margin: 0 0 8px;
            line-height: 1.45;
            transition: color var(--transition);
        }

        .guide-item:hover .guide-item-title {
            color: var(--color-primary);
        }

        .guide-item-summary {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            margin: 0 0 12px;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .guide-item-link {
            font-size: 13px;
            color: var(--color-primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition), color var(--transition);
        }

        .guide-item-link:hover {
            color: var(--color-primary-hover);
            gap: 8px;
        }

        .guide-item-link i {
            font-size: 11px;
        }

        /* ===== Ranking Sidebar / Strip ===== */
        .ranking-section {
            padding: 28px 0 56px;
            background: #fff;
            border-top: 1px solid var(--color-border);
        }

        .ranking-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 22px 24px;
            box-shadow: var(--shadow-card);
        }

        .ranking-card-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--color-text);
            margin: 0 0 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .ranking-card-title i {
            color: var(--color-cyan);
            font-size: 1rem;
        }

        .ranking-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 12px;
            border-radius: 8px;
            background: #F8FAFC;
            border: 1px solid #F1F5F9;
            transition: background var(--transition), border-color var(--transition);
        }

        .ranking-item:hover {
            background: var(--color-primary-bg);
            border-color: #BFDBFE;
        }

        .ranking-num {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            flex-shrink: 0;
            background: #E2E8F0;
            color: var(--color-text-secondary);
            font-family: var(--font-num);
        }

        .ranking-item:nth-child(1) .ranking-num {
            background: var(--color-orange);
            color: #fff;
        }

        .ranking-item:nth-child(2) .ranking-num {
            background: var(--color-cyan);
            color: #fff;
        }

        .ranking-item:nth-child(3) .ranking-num {
            background: #94A3B8;
            color: #fff;
        }

        .ranking-name {
            flex: 1;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-text);
            min-width: 0;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .ranking-value {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            font-family: var(--font-num);
            white-space: nowrap;
        }

        .ranking-change {
            font-size: 12px;
            font-weight: 600;
            white-space: nowrap;
            font-family: var(--font-num);
            display: inline-flex;
            align-items: center;
            gap: 3px;
        }

        .ranking-change.up {
            color: #16A34A;
        }

        .ranking-change.down {
            color: #DC2626;
        }

        .ranking-change.flat {
            color: var(--color-text-muted);
        }

        /* ===== Featured Section ===== */
        .featured-section {
            padding: 56px 0;
            background: var(--color-bg);
        }

        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .featured-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition);
            display: flex;
            flex-direction: column;
        }

        .featured-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .featured-card-img {
            width: 100%;
            height: 170px;
            overflow: hidden;
            position: relative;
            background: #E2E8F0;
        }

        .featured-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }

        .featured-card:hover .featured-card-img img {
            transform: scale(1.03);
        }

        .featured-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            font-size: 12px;
            padding: 4px 12px;
            background: rgba(37, 99, 235, .92);
            color: #fff;
            border-radius: var(--radius-badge);
            font-weight: 500;
            letter-spacing: .3px;
        }

        .featured-card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .featured-card-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-text);
            margin: 0 0 8px;
            line-height: 1.45;
            transition: color var(--transition);
        }

        .featured-card:hover .featured-card-title {
            color: var(--color-primary);
        }

        .featured-card-summary {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            margin: 0 0 14px;
            line-height: 1.65;
            flex: 1;
        }

        .featured-card-link {
            align-self: flex-start;
            font-size: 13px;
            color: var(--color-primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .featured-card-link:hover {
            color: var(--color-primary-hover);
        }

        /* ===== Category Entrances ===== */
        .category-entrance-section {
            padding: 56px 0;
            background: #fff;
            border-top: 1px solid var(--color-border);
        }

        .entrance-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .entrance-card {
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px 16px;
            text-align: center;
            transition: all var(--transition);
            display: block;
        }

        .entrance-card:hover {
            background: var(--color-primary-bg);
            border-color: var(--color-primary);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        .entrance-card i {
            font-size: 1.5rem;
            color: var(--color-primary);
            margin-bottom: 10px;
            display: block;
        }

        .entrance-card-name {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text);
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            padding: 56px 0;
            background: var(--color-bg);
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .faq-item:hover {
            border-color: #CBD5E1;
            box-shadow: 0 4px 12px rgba(15, 23, 42, .08);
        }

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text);
            transition: color var(--transition);
            user-select: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary:hover {
            color: var(--color-primary);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-primary-bg);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: transform var(--transition-faq), background var(--transition-faq);
        }

        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
            background: var(--color-primary);
            color: #fff;
        }

        .faq-answer {
            padding: 0 22px 18px 22px;
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            line-height: 1.75;
            max-width: 720px;
        }

        /* ===== Subscribe CTA ===== */
        .subscribe-section {
            padding: 56px 0;
            background: #fff;
            border-top: 1px solid var(--color-border);
        }

        .subscribe-box {
            background: var(--color-primary-bg);
            border: 1px solid #BFDBFE;
            border-radius: var(--radius-card);
            padding: 32px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .subscribe-text h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 6px;
        }

        .subscribe-text p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            margin: 0;
        }

        .subscribe-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-primary);
            color: #fff;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.9rem;
            transition: background-color var(--transition);
            white-space: nowrap;
        }

        .subscribe-btn:hover {
            background: var(--color-primary-hover);
            color: #fff;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-footer-bg);
            color: #CBD5E1;
            padding: 48px 0 28px;
            font-size: 0.875rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand-mark {
            width: 36px;
            height: 36px;
            background: var(--color-primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            flex-shrink: 0;
        }

        .footer-desc {
            font-size: 0.85rem;
            color: #94A3B8;
            line-height: 1.7;
            margin: 0;
            max-width: 320px;
        }

        .footer-column-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 14px;
            letter-spacing: .5px;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            color: #CBD5E1;
            font-size: 0.85rem;
            transition: color var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 10px;
            font-size: 0.85rem;
            color: #CBD5E1;
        }

        .footer-contact-item i {
            color: var(--color-primary);
            width: 16px;
            text-align: center;
            flex-shrink: 0;
        }

        .footer-bottom {
            border-top: 1px solid #1E293B;
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.8rem;
            color: #94A3B8;
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-bottom-links a {
            color: #94A3B8;
            transition: color var(--transition);
        }

        .footer-bottom-links a:hover {
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (min-width: 640px) {
            :root {
                --section-padding: var(--section-padding);
            }
        }

        @media (min-width: 1024px) {
            :root {
                --section-padding: 80px 0;
            }

            .section {
                padding: 80px 0;
            }

            .category-banner h1 {
                font-size: 2.4rem;
            }
        }

        @media (max-width: 1023px) {
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .entrance-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .guide-item-thumb {
                width: 140px;
                height: 100px;
            }
        }

        @media (max-width: 639px) {
            .brand-row {
                height: 36px;
            }

            .trend-tags {
                display: none;
            }

            .brand-search {
                max-width: 180px;
            }

            .brand-search button {
                padding: 8px 12px;
            }

            .channel-row {
                height: 56px;
            }

            .main-nav>li>a {
                padding: 16px 10px;
                font-size: 13px;
            }

            .site-header.is-sticky .main-nav>li>a {
                padding: 14px 10px;
            }

            .category-banner {
                padding: 28px 0 24px;
            }

            .category-banner h1 {
                font-size: 1.5rem;
            }

            .category-banner-desc {
                font-size: 0.85rem;
            }

            .filter-toolbar {
                padding: 12px 14px;
                gap: 10px;
            }

            .guide-item {
                padding: 14px;
                flex-direction: column;
                gap: 12px;
            }

            .guide-item-thumb {
                width: 100%;
                height: 160px;
            }

            .guide-item-title {
                font-size: 1rem;
            }

            .featured-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .featured-card-img {
                height: 160px;
            }

            .entrance-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .entrance-card {
                padding: 16px 12px;
            }

            .subscribe-box {
                padding: 22px 18px;
                flex-direction: column;
                text-align: center;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
                gap: 10px;
            }

            .section {
                padding: 48px 0;
            }

            .section-title {
                font-size: 1.4rem;
            }

            .ranking-card {
                padding: 16px;
            }
        }

/* roulang page: category4 */
:root {
        --color-primary: #2563EB;
        --color-primary-hover: #1D4ED8;
        --color-primary-bg: #EFF6FF;
        --color-cyan: #06B6D4;
        --color-orange: #F97316;
        --color-bg: #F5F7FB;
        --color-card: #FFFFFF;
        --color-border: #E2E8F0;
        --color-text: #0F172A;
        --color-text-secondary: #475569;
        --color-text-muted: #64748B;
        --color-footer-bg: #0F172A;
        --radius-card: 12px;
        --radius-btn: 8px;
        --radius-badge: 999px;
        --shadow-card: 0 1px 3px rgba(15,23,42,.06);
        --shadow-card-hover: 0 16px 32px -12px rgba(37,99,235,.18);
        --shadow-nav: 0 4px 12px rgba(15,23,42,.08);
        --font-cn: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
        --font-num: "SF UI","Inter","Roboto",sans-serif;
        --section-padding: 80px 0;
        --section-padding-mobile: 48px 0;
        --transition: 180ms ease;
        --transition-faq: 200ms ease-in;
    }
    :root {
        --section-padding: var(--section-padding-mobile);
    }
    @media (min-width: 640px) {
        :root {
            --section-padding: 64px 0;
        }
    }
    @media (min-width: 1024px) {
        :root {
            --section-padding: 80px 0;
        }
    }
    html {
        font-size: 16px;
        scroll-behavior: smooth;
    }
    body {
        font-family: var(--font-cn);
        color: var(--color-text);
        background-color: var(--color-bg);
        line-height: 1.7;
        margin: 0;
        padding: 0;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    a {
        text-decoration: none;
        color: inherit;
        transition: color var(--transition), background-color var(--transition), border-color var(--transition), box-shadow var(--transition);
    }
    a:hover, a:focus {
        color: var(--color-primary);
        outline: none;
    }
    a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
        outline: 3px solid #BFDBFE;
        outline-offset: 2px;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    button, input, textarea {
        font-family: var(--font-cn);
        font-size: 1rem;
    }
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }
    /* Header / Nav */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: #fff;
        box-shadow: none;
        transition: box-shadow var(--transition);
    }
    .site-header.is-sticky {
        box-shadow: var(--shadow-nav);
    }
    .brand-row {
        background: #fff;
        border-bottom: 1px solid var(--color-border);
        height: 40px;
        display: flex;
        align-items: center;
        overflow: hidden;
        transition: height 200ms ease, opacity 200ms ease, border-color 200ms ease;
    }
    .site-header.is-sticky .brand-row {
        height: 0;
        opacity: 0;
        border-bottom: none;
    }
    .brand-row-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        width: 100%;
    }
    .brand-logo-wrap {
        display: flex;
        align-items: center;
        gap: 8px;
        flex-shrink: 0;
    }
    .brand-logo-mark {
        width: 28px;
        height: 28px;
        background: var(--color-primary);
        border-radius: 6px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-weight: 700;
        font-size: 14px;
        letter-spacing: 1px;
        flex-shrink: 0;
    }
    .brand-logo-text {
        font-size: 16px;
        font-weight: 700;
        color: var(--color-text);
        letter-spacing: .5px;
        white-space: nowrap;
    }
    .brand-search {
        flex: 1;
        max-width: 420px;
        display: flex;
        align-items: center;
        gap: 0;
        border-radius: var(--radius-badge);
        overflow: hidden;
        background: #F8FAFC;
        border: 1px solid var(--color-border);
        transition: border-color var(--transition);
    }
    .brand-search:focus-within {
        border-color: var(--color-primary);
        box-shadow: 0 0 0 3px #BFDBFE;
    }
    .brand-search input {
        border: none;
        outline: none;
        background: transparent;
        padding: 8px 14px;
        font-size: 13px;
        flex: 1;
        min-width: 0;
        color: var(--color-text);
    }
    .brand-search button {
        border: none;
        background: var(--color-primary);
        color: #fff;
        padding: 8px 18px;
        font-size: 13px;
        cursor: pointer;
        transition: background-color var(--transition);
        white-space: nowrap;
    }
    .brand-search button:hover {
        background: var(--color-primary-hover);
    }
    .trend-tags {
        display: flex;
        align-items: center;
        gap: 6px;
        flex-shrink: 0;
        flex-wrap: wrap;
    }
    .trend-tag {
        font-size: 12px;
        padding: 4px 12px;
        background: #fff;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-badge);
        color: var(--color-text-secondary);
        white-space: nowrap;
        transition: border-color var(--transition), color var(--transition);
    }
    .trend-tag:hover {
        border-color: var(--color-primary);
        color: var(--color-primary);
    }
    .channel-row {
        background: #fff;
        border-bottom: 1px solid var(--color-border);
        height: 64px;
        display: flex;
        align-items: center;
        transition: height 200ms ease;
    }
    .site-header.is-sticky .channel-row {
        height: 56px;
    }
    .channel-row-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        gap: 8px;
    }
    .main-nav {
        display: flex;
        align-items: center;
        gap: 0;
        flex: 1;
        list-style: none;
        margin: 0;
        padding: 0;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: thin;
    }
    .main-nav > li {
        margin: 0;
        flex-shrink: 0;
    }
    .main-nav > li > a {
        display: block;
        padding: 20px 14px;
        font-size: 15px;
        font-weight: 500;
        color: var(--color-text-secondary);
        border-bottom: 2px solid transparent;
        transition: color var(--transition), border-color var(--transition);
        white-space: nowrap;
    }
    .site-header.is-sticky .main-nav > li > a {
        padding: 16px 14px;
    }
    .main-nav > li > a:hover, .main-nav > li > a:focus {
        color: var(--color-primary);
    }
    .main-nav > li > a.active {
        color: var(--color-primary);
        border-bottom-color: var(--color-primary);
    }
    /* Sections */
    main {
        display: block;
    }
    .section {
        padding: var(--section-padding);
    }
    .section-alt {
        background: #fff;
    }
    .section-title {
        font-size: 26px;
        font-weight: 700;
        color: var(--color-text);
        margin: 0 0 12px;
        letter-spacing: .5px;
    }
    .section-subtitle {
        font-size: 15px;
        color: var(--color-text-secondary);
        margin: 0 0 28px;
        max-width: 720px;
    }
    .section-header-row {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 16px;
        flex-wrap: wrap;
        margin-bottom: 24px;
    }
    .section-header-row .section-title,
    .section-header-row .section-subtitle {
        margin-bottom: 0;
    }
    /* Breadcrumb */
    .breadcrumb-bar {
        background: #fff;
        border-bottom: 1px solid var(--color-border);
        padding: 14px 0;
        font-size: 13px;
        color: var(--color-text-muted);
    }
    .breadcrumb-bar a {
        color: var(--color-text-secondary);
    }
    .breadcrumb-bar a:hover {
        color: var(--color-primary);
    }
    .breadcrumb-sep {
        margin: 0 8px;
        color: #94A3B8;
    }
    /* Category Hero */
    .category-hero {
        background: #fff;
        padding: 36px 0 32px;
        border-bottom: 1px solid var(--color-border);
    }
    .category-hero h1 {
        font-size: 32px;
        font-weight: 700;
        margin: 4px 0 12px;
        color: var(--color-text);
        letter-spacing: .5px;
    }
    .category-hero .category-desc {
        font-size: 15px;
        color: var(--color-text-secondary);
        max-width: 860px;
        margin: 0;
        line-height: 1.8;
    }
    /* Filter bar */
    .filter-bar {
        background: #fff;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        padding: 16px 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        flex-wrap: wrap;
        margin-bottom: 28px;
        box-shadow: var(--shadow-card);
    }
    .filter-tabs {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
    }
    .filter-tab {
        padding: 7px 16px;
        border-radius: var(--radius-badge);
        border: 1px solid var(--color-border);
        background: #fff;
        color: var(--color-text-secondary);
        font-size: 13px;
        cursor: pointer;
        transition: all var(--transition);
        white-space: nowrap;
    }
    .filter-tab:hover {
        border-color: var(--color-primary);
        color: var(--color-primary);
    }
    .filter-tab.active {
        background: var(--color-primary-bg);
        border-color: var(--color-primary);
        color: var(--color-primary);
        font-weight: 600;
    }
    .filter-sort {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .filter-sort label {
        font-size: 13px;
        color: var(--color-text-muted);
        white-space: nowrap;
    }
    .filter-sort select {
        padding: 8px 12px;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-btn);
        background: #fff;
        font-size: 13px;
        color: var(--color-text);
        cursor: pointer;
        outline: none;
        transition: border-color var(--transition);
    }
    .filter-sort select:focus {
        border-color: var(--color-primary);
        box-shadow: 0 0 0 3px #BFDBFE;
    }
    /* Card grid */
    .card-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 20px;
    }
    @media (min-width: 640px) {
        .card-grid.cols-2 {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    @media (min-width: 1024px) {
        .card-grid.cols-3 {
            grid-template-columns: repeat(3, 1fr);
        }
        .card-grid.cols-2 {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    .content-card {
        background: var(--color-card);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        box-shadow: var(--shadow-card);
        overflow: hidden;
        display: flex;
        flex-direction: column;
        transition: box-shadow var(--transition), transform var(--transition);
    }
    .content-card:hover {
        box-shadow: var(--shadow-card-hover);
        transform: translateY(-4px);
    }
    .content-card-image {
        width: 100%;
        aspect-ratio: 16/9;
        overflow: hidden;
        background: #E2E8F0;
        flex-shrink: 0;
    }
    .content-card-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .content-card-body {
        padding: 18px 20px 20px;
        display: flex;
        flex-direction: column;
        flex: 1;
        gap: 8px;
    }
    .content-card-meta {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-wrap: wrap;
        font-size: 12px;
        color: var(--color-text-muted);
    }
    .badge {
        display: inline-block;
        padding: 3px 12px;
        border-radius: var(--radius-badge);
        font-size: 12px;
        font-weight: 500;
        background: var(--color-primary-bg);
        color: var(--color-primary);
        white-space: nowrap;
    }
    .badge-cyan {
        background: #ECFEFF;
        color: #0891B2;
    }
    .badge-orange {
        background: #FFF7ED;
        color: #EA580C;
    }
    .content-card-title {
        font-size: 18px;
        font-weight: 600;
        color: var(--color-text);
        line-height: 1.5;
        margin: 0;
    }
    .content-card-summary {
        font-size: 14px;
        color: var(--color-text-secondary);
        line-height: 1.7;
        margin: 0;
        flex: 1;
    }
    .read-more {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 14px;
        font-weight: 500;
        color: var(--color-primary);
        margin-top: 4px;
        align-self: flex-start;
        transition: gap var(--transition), color var(--transition);
    }
    .read-more:hover {
        color: var(--color-primary-hover);
        gap: 10px;
    }
    .read-more i {
        font-size: 12px;
    }
    /* Two-column layout */
    .two-col-layout {
        display: grid;
        grid-template-columns: 1fr;
        gap: 28px;
    }
    @media (min-width: 1024px) {
        .two-col-layout {
            grid-template-columns: 1fr 320px;
            gap: 32px;
        }
    }
    /* Sidebar ranking */
    .ranking-sidebar {
        display: flex;
        flex-direction: column;
        gap: 24px;
    }
    .ranking-card {
        background: #fff;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        box-shadow: var(--shadow-card);
        padding: 20px;
    }
    .ranking-card-title {
        font-size: 17px;
        font-weight: 700;
        color: var(--color-text);
        margin: 0 0 16px;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .ranking-card-title i {
        color: var(--color-orange);
        font-size: 16px;
    }
    .ranking-list {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .ranking-item {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 10px 12px;
        border-radius: 8px;
        background: #F8FAFC;
        border: 1px solid transparent;
        transition: background-color var(--transition), border-color var(--transition);
    }
    .ranking-item:hover {
        background: var(--color-primary-bg);
        border-color: #BFDBFE;
    }
    .ranking-number {
        width: 28px;
        height: 28px;
        border-radius: 6px;
        background: #E2E8F0;
        color: var(--color-text-secondary);
        font-weight: 700;
        font-size: 13px;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }
    .ranking-item:first-child .ranking-number {
        background: var(--color-orange);
        color: #fff;
    }
    .ranking-item:nth-child(2) .ranking-number {
        background: #94A3B8;
        color: #fff;
    }
    .ranking-item:nth-child(3) .ranking-number {
        background: #D97706;
        color: #fff;
    }
    .ranking-info {
        flex: 1;
        min-width: 0;
    }
    .ranking-name {
        font-size: 14px;
        font-weight: 600;
        color: var(--color-text);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    .ranking-detail {
        font-size: 12px;
        color: var(--color-text-muted);
    }
    .ranking-change {
        font-size: 12px;
        font-weight: 600;
        white-space: nowrap;
    }
    .ranking-up {
        color: #16A34A;
    }
    .ranking-down {
        color: #DC2626;
    }
    .ranking-flat {
        color: var(--color-text-muted);
    }
    /* Featured cards */
    .featured-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 20px;
    }
    @media (min-width: 640px) {
        .featured-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    @media (min-width: 1024px) {
        .featured-grid {
            grid-template-columns: repeat(3, 1fr);
        }
    }
    .featured-card {
        background: #fff;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        box-shadow: var(--shadow-card);
        overflow: hidden;
        transition: box-shadow var(--transition), transform var(--transition);
    }
    .featured-card:hover {
        box-shadow: var(--shadow-card-hover);
        transform: translateY(-4px);
    }
    .featured-card-image {
        width: 100%;
        aspect-ratio: 3/2;
        overflow: hidden;
        background: #E2E8F0;
    }
    .featured-card-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .featured-card-body {
        padding: 18px 20px 20px;
        display: flex;
        flex-direction: column;
        gap: 8px;
    }
    .featured-card-title {
        font-size: 17px;
        font-weight: 600;
        color: var(--color-text);
        line-height: 1.5;
        margin: 0;
    }
    .featured-card-summary {
        font-size: 14px;
        color: var(--color-text-secondary);
        line-height: 1.7;
        margin: 0;
    }
    /* Category entry */
    .category-entry-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    @media (min-width: 640px) {
        .category-entry-grid {
            grid-template-columns: repeat(3, 1fr);
        }
    }
    @media (min-width: 1024px) {
        .category-entry-grid {
            grid-template-columns: repeat(7, 1fr);
        }
    }
    .category-entry-item {
        background: #fff;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        padding: 14px 12px;
        text-align: center;
        transition: all var(--transition);
        display: block;
    }
    .category-entry-item:hover {
        border-color: var(--color-primary);
        box-shadow: var(--shadow-card-hover);
        transform: translateY(-2px);
    }
    .category-entry-item i {
        font-size: 22px;
        color: var(--color-primary);
        margin-bottom: 8px;
        display: block;
    }
    .category-entry-item span {
        font-size: 13px;
        font-weight: 600;
        color: var(--color-text);
        display: block;
    }
    /* FAQ */
    .faq-list {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .faq-item {
        background: #fff;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        overflow: hidden;
        box-shadow: var(--shadow-card);
        transition: border-color var(--transition);
    }
    .faq-item:hover {
        border-color: #BFDBFE;
    }
    .faq-question {
        padding: 16px 20px;
        font-size: 15px;
        font-weight: 600;
        color: var(--color-text);
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        cursor: pointer;
        user-select: none;
        transition: color var(--transition);
    }
    .faq-question:hover {
        color: var(--color-primary);
    }
    .faq-question i {
        font-size: 14px;
        color: var(--color-text-muted);
        transition: transform var(--transition-faq);
        flex-shrink: 0;
    }
    .faq-item.open .faq-question i {
        transform: rotate(45deg);
        color: var(--color-primary);
    }
    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-faq);
    }
    .faq-item.open .faq-answer {
        max-height: 300px;
    }
    .faq-answer-inner {
        padding: 0 20px 18px;
        font-size: 14px;
        color: var(--color-text-secondary);
        line-height: 1.8;
    }
    /* CTA */
    .cta-section {
        background: var(--color-primary-bg);
        border: 1px solid #BFDBFE;
        border-radius: var(--radius-card);
        padding: 32px 28px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
        flex-wrap: wrap;
    }
    .cta-content {
        flex: 1;
        min-width: 240px;
    }
    .cta-title {
        font-size: 20px;
        font-weight: 700;
        color: var(--color-text);
        margin: 0 0 8px;
    }
    .cta-desc {
        font-size: 14px;
        color: var(--color-text-secondary);
        margin: 0;
    }
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 10px 20px;
        border-radius: var(--radius-btn);
        font-size: 14px;
        font-weight: 600;
        cursor: pointer;
        border: none;
        transition: background-color var(--transition), color var(--transition), border-color var(--transition);
        white-space: nowrap;
    }
    .btn-primary {
        background: var(--color-primary);
        color: #fff;
    }
    .btn-primary:hover {
        background: var(--color-primary-hover);
        color: #fff;
    }
    .btn-secondary {
        background: #fff;
        color: var(--color-primary);
        border: 1px solid var(--color-primary);
    }
    .btn-secondary:hover {
        background: var(--color-primary-bg);
        color: var(--color-primary-hover);
        border-color: var(--color-primary-hover);
    }
    .btn-sm {
        padding: 8px 14px;
        font-size: 13px;
    }
    /* Footer */
    .site-footer {
        background: var(--color-footer-bg);
        color: #CBD5E1;
        padding: 48px 0 24px;
        margin-top: 0;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 32px;
        margin-bottom: 32px;
    }
    @media (min-width: 640px) {
        .footer-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    @media (min-width: 1024px) {
        .footer-grid {
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
        }
    }
    .footer-brand {
        font-size: 20px;
        font-weight: 700;
        color: #fff;
        display: flex;
        align-items: center;
        gap: 8px;
        margin-bottom: 12px;
    }
    .footer-brand-mark {
        width: 32px;
        height: 32px;
        background: var(--color-primary);
        border-radius: 6px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-weight: 700;
        font-size: 16px;
    }
    .footer-desc {
        font-size: 13px;
        color: #94A3B8;
        line-height: 1.8;
        margin: 0;
    }
    .footer-column-title {
        font-size: 15px;
        font-weight: 600;
        color: #fff;
        margin: 0 0 16px;
    }
    .footer-links {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .footer-links a {
        font-size: 14px;
        color: #CBD5E1;
        transition: color var(--transition);
    }
    .footer-links a:hover {
        color: #fff;
    }
    .footer-contact-item {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        color: #CBD5E1;
        margin-bottom: 12px;
    }
    .footer-contact-item i {
        color: var(--color-cyan);
        width: 16px;
        text-align: center;
        flex-shrink: 0;
    }
    .footer-bottom {
        border-top: 1px solid rgba(255,255,255,.1);
        padding-top: 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        flex-wrap: wrap;
        font-size: 13px;
        color: #94A3B8;
    }
    .footer-bottom-links {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .footer-bottom-links a {
        color: #CBD5E1;
        font-size: 13px;
    }
    .footer-bottom-links a:hover {
        color: #fff;
    }
    .footer-bottom-links span {
        color: #475569;
    }
    @media (max-width: 639px) {
        .brand-row-inner {
            flex-wrap: wrap;
            gap: 8px;
        }
        .brand-search {
            max-width: 100%;
            order: 3;
            width: 100%;
        }
        .trend-tags {
            display: none;
        }
        .category-hero h1 {
            font-size: 26px;
        }
        .section-title {
            font-size: 22px;
        }
        .filter-bar {
            flex-direction: column;
            align-items: stretch;
        }
        .filter-sort {
            justify-content: space-between;
        }
        .cta-section {
            flex-direction: column;
            text-align: center;
        }
        .cta-section .btn {
            width: 100%;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
    }

/* roulang page: category5 */
:root {
            --color-primary: #2563EB;
            --color-primary-hover: #1D4ED8;
            --color-primary-bg: #EFF6FF;
            --color-cyan: #06B6D4;
            --color-orange: #F97316;
            --color-bg: #F5F7FB;
            --color-card: #FFFFFF;
            --color-border: #E2E8F0;
            --color-text: #0F172A;
            --color-text-secondary: #475569;
            --color-text-muted: #64748B;
            --color-footer-bg: #0F172A;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 999px;
            --shadow-card: 0 1px 3px rgba(15, 23, 42, .06);
            --shadow-card-hover: 0 16px 32px -12px rgba(37, 99, 235, .18);
            --shadow-nav: 0 4px 12px rgba(15, 23, 42, .08);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "SF UI", "Inter", "Roboto", sans-serif;
            --section-padding: 80px 0;
            --section-padding-mobile: 48px 0;
            --transition: 180ms ease;
            --transition-faq: 200ms ease-in;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            font-size: 16px;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-cn);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition), background-color var(--transition), border-color var(--transition), box-shadow var(--transition);
        }

        a:hover,
        a:focus {
            color: var(--color-primary);
            outline: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid #BFDBFE;
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        textarea {
            font-family: var(--font-cn);
            font-size: 1rem;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            box-shadow: none;
            transition: box-shadow var(--transition), height var(--transition);
        }

        .site-header.is-sticky {
            box-shadow: var(--shadow-nav);
        }

        .brand-row {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            height: 40px;
            display: flex;
            align-items: center;
            transition: height 200ms ease, opacity 200ms ease;
            overflow: hidden;
        }

        .site-header.is-sticky .brand-row {
            height: 0;
            opacity: 0;
            border-bottom: none;
        }

        .brand-row-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
        }

        .brand-logo-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .brand-logo-mark {
            width: 28px;
            height: 28px;
            background: var(--color-primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 1px;
            flex-shrink: 0;
        }

        .brand-logo-text {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: .5px;
            white-space: nowrap;
        }

        .brand-search {
            flex: 1;
            max-width: 420px;
            display: flex;
            align-items: center;
            gap: 0;
            border-radius: var(--radius-badge);
            overflow: hidden;
            background: #F8FAFC;
            border: 1px solid var(--color-border);
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .brand-search:focus-within {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px #BFDBFE;
        }

        .brand-search input {
            border: none;
            outline: none;
            background: transparent;
            padding: 8px 14px;
            font-size: 13px;
            flex: 1;
            min-width: 0;
            color: var(--color-text);
        }

        .brand-search button {
            border: none;
            background: var(--color-primary);
            color: #fff;
            padding: 8px 18px;
            font-size: 13px;
            cursor: pointer;
            transition: background-color var(--transition);
            white-space: nowrap;
        }

        .brand-search button:hover {
            background: var(--color-primary-hover);
        }

        .trend-tags {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        .trend-tag {
            font-size: 12px;
            padding: 4px 12px;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-badge);
            color: var(--color-text-secondary);
            white-space: nowrap;
            transition: border-color var(--transition), color var(--transition);
        }

        .trend-tag:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .channel-row {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            height: 64px;
            display: flex;
            align-items: center;
            transition: height 200ms ease;
        }

        .site-header.is-sticky .channel-row {
            height: 56px;
        }

        .channel-row-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 8px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0;
            flex: 1;
            list-style: none;
            margin: 0;
            padding: 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .main-nav::-webkit-scrollbar {
            display: none;
        }

        .main-nav>li {
            margin: 0;
            flex-shrink: 0;
        }

        .main-nav>li>a {
            display: block;
            padding: 20px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition);
            white-space: nowrap;
        }

        .site-header.is-sticky .main-nav>li>a {
            padding: 16px 14px;
        }

        .main-nav>li>a:hover,
        .main-nav>li>a:focus {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
        }

        .main-nav>li>a.active {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
            font-weight: 600;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--color-text);
            cursor: pointer;
            padding: 8px;
            flex-shrink: 0;
            transition: color var(--transition);
        }

        .mobile-menu-toggle:hover {
            color: var(--color-primary);
        }

        /* ===== Breadcrumb / H1 Banner ===== */
        .page-banner {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            padding: 32px 0 28px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-text-muted);
            transition: color var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--color-primary);
        }

        .breadcrumb .separator {
            color: #CBD5E1;
        }

        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 500;
        }

        .page-banner h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 12px;
            line-height: 1.3;
        }

        .page-banner .banner-desc {
            font-size: 15px;
            color: var(--color-text-secondary);
            max-width: 860px;
            line-height: 1.75;
            margin: 0;
        }

        /* ===== Filter Toolbar ===== */
        .filter-toolbar {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            margin: 28px 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-card);
        }

        .filter-toolbar .filter-label {
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text-muted);
            flex-shrink: 0;
        }

        .filter-toolbar .filter-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .filter-toolbar .filter-tag-btn {
            font-size: 13px;
            padding: 6px 16px;
            background: var(--color-primary-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-badge);
            color: var(--color-text-secondary);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .filter-toolbar .filter-tag-btn:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .filter-toolbar .filter-tag-btn.active {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
            font-weight: 500;
        }

        .filter-toolbar .sort-select {
            padding: 6px 14px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            font-size: 13px;
            color: var(--color-text-secondary);
            background: #fff;
            cursor: pointer;
            transition: border-color var(--transition);
            outline: none;
        }

        .filter-toolbar .sort-select:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px #BFDBFE;
        }

        /* ===== Content Cards ===== */
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .content-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition);
            display: flex;
            flex-direction: column;
        }

        .content-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .content-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
            flex-wrap: wrap;
        }

        .content-card .card-date {
            font-size: 12px;
            color: var(--color-text-muted);
            font-family: var(--font-num);
        }

        .content-card .card-badge {
            font-size: 12px;
            padding: 3px 12px;
            background: var(--color-primary-bg);
            color: var(--color-primary);
            border-radius: var(--radius-badge);
            font-weight: 500;
        }

        .content-card .card-badge.orange {
            background: #FFF7ED;
            color: var(--color-orange);
        }

        .content-card .card-badge.cyan {
            background: #ECFEFF;
            color: var(--color-cyan);
        }

        .content-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text);
            margin: 0 0 10px;
            line-height: 1.45;
        }

        .content-card .card-summary {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.65;
            margin: 0 0 16px;
            flex: 1;
        }

        .content-card .card-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition);
        }

        .content-card .card-link:hover {
            color: var(--color-primary-hover);
            text-decoration: underline;
        }

        /* ===== Data Ranking ===== */
        .data-ranking-section {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            margin-bottom: 24px;
        }

        .data-ranking-section .section-heading {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .data-ranking-section .section-heading h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .data-ranking-section .section-heading h2 i {
            color: var(--color-primary);
            font-size: 20px;
        }

        .data-ranking-section .section-heading .trend-badge {
            font-size: 12px;
            padding: 4px 12px;
            background: #FFF7ED;
            color: var(--color-orange);
            border-radius: var(--radius-badge);
            font-weight: 500;
        }

        .ranking-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 12px 16px;
            background: #FAFBFC;
            border: 1px solid var(--color-border);
            border-radius: 8px;
            transition: background-color var(--transition), border-color var(--transition);
        }

        .ranking-item:hover {
            background: var(--color-primary-bg);
            border-color: #BFDBFE;
        }

        .ranking-item .rank-number {
            width: 32px;
            height: 32px;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            color: var(--color-text-secondary);
            flex-shrink: 0;
            font-family: var(--font-num);
        }

        .ranking-item:nth-child(1) .rank-number {
            background: var(--color-orange);
            border-color: var(--color-orange);
            color: #fff;
        }

        .ranking-item:nth-child(2) .rank-number {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
        }

        .ranking-item:nth-child(3) .rank-number {
            background: var(--color-cyan);
            border-color: var(--color-cyan);
            color: #fff;
        }

        .ranking-item .rank-info {
            flex: 1;
            min-width: 0;
        }

        .ranking-item .rank-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 2px;
        }

        .ranking-item .rank-detail {
            font-size: 12px;
            color: var(--color-text-muted);
        }

        .ranking-item .rank-change {
            font-size: 14px;
            font-weight: 600;
            font-family: var(--font-num);
            white-space: nowrap;
        }

        .ranking-item .rank-change.up {
            color: #16A34A;
        }

        .ranking-item .rank-change.down {
            color: #DC2626;
        }

        /* ===== Featured / Editor Picks ===== */
        .featured-picks {
            margin-bottom: 24px;
        }

        .featured-picks .section-heading {
            margin-bottom: 20px;
        }

        .featured-picks .section-heading h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .featured-picks .section-heading h2 i {
            color: var(--color-primary);
            font-size: 20px;
        }

        .featured-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
        }

        .featured-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition);
            display: flex;
            flex-direction: column;
        }

        .featured-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .featured-card .featured-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: #E2E8F0;
        }

        .featured-card .featured-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .featured-card .featured-tag {
            font-size: 12px;
            padding: 3px 12px;
            background: var(--color-primary-bg);
            color: var(--color-primary);
            border-radius: var(--radius-badge);
            font-weight: 500;
            display: inline-block;
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .featured-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .featured-card .featured-summary {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.6;
            margin: 0 0 16px;
            flex: 1;
        }

        .featured-card .featured-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .featured-card .featured-link:hover {
            color: var(--color-primary-hover);
            text-decoration: underline;
        }

        /* ===== Category Entrances ===== */
        .category-entrances {
            margin-bottom: 24px;
        }

        .category-entrances .section-heading {
            margin-bottom: 20px;
        }

        .category-entrances .section-heading h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .category-entrance-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
        }

        .category-entrance-card {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 18px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
        }

        .category-entrance-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: #BFDBFE;
            color: var(--color-primary);
        }

        .category-entrance-card .entrance-icon {
            width: 36px;
            height: 36px;
            background: var(--color-primary-bg);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-size: 16px;
            flex-shrink: 0;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            margin-bottom: 24px;
        }

        .faq-section .section-heading {
            margin-bottom: 20px;
        }

        .faq-section .section-heading h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .faq-item {
            border-bottom: 1px solid var(--color-border);
            padding: 16px 0;
        }

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            padding: 4px 0;
            transition: color var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-cn);
        }

        .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 14px;
            color: var(--color-text-muted);
            transition: transform var(--transition-faq);
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            color: var(--color-primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-faq), padding var(--transition-faq);
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            padding: 0 8px;
        }

        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 8px;
        }

        /* ===== RSS CTA ===== */
        .rss-cta {
            background: var(--color-primary-bg);
            border: 1px solid #BFDBFE;
            border-radius: var(--radius-card);
            padding: 28px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .rss-cta .cta-text {
            flex: 1;
            min-width: 200px;
        }

        .rss-cta .cta-text h2 {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 6px;
        }

        .rss-cta .cta-text p {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin: 0;
        }

        .rss-cta .cta-actions {
            display: flex;
            gap: 12px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: all var(--transition);
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }

        .btn-primary:hover {
            background: var(--color-primary-hover);
            border-color: var(--color-primary-hover);
            color: #fff;
        }

        .btn-outline {
            background: #fff;
            color: var(--color-primary);
            border-color: var(--color-primary);
        }

        .btn-outline:hover {
            background: var(--color-primary-bg);
            color: var(--color-primary-hover);
            border-color: var(--color-primary-hover);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-footer-bg);
            color: #CBD5E1;
            padding: 56px 0 0;
            margin-top: 64px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            padding-bottom: 40px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand-mark {
            width: 32px;
            height: 32px;
            background: var(--color-primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            letter-spacing: 1px;
        }

        .footer-desc {
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.7;
            margin: 0;
            max-width: 320px;
        }

        .footer-column-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 16px;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: #CBD5E1;
            transition: color var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-contact-item {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 14px;
            color: #94A3B8;
            margin-bottom: 10px;
            line-height: 1.6;
        }

        .footer-contact-item i {
            color: var(--color-primary);
            margin-top: 4px;
            flex-shrink: 0;
        }

        .footer-bottom {
            border-top: 1px solid #1E293B;
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 13px;
            color: #94A3B8;
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-bottom-links a {
            color: #CBD5E1;
            transition: color var(--transition);
        }

        .footer-bottom-links a:hover {
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .brand-row {
                height: 36px;
            }

            .brand-search {
                max-width: 280px;
            }

            .trend-tags {
                display: none;
            }

            .content-grid {
                grid-template-columns: 1fr;
            }

            .featured-grid {
                grid-template-columns: 1fr 1fr;
            }

            .category-entrance-grid {
                grid-template-columns: 1fr 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 767px) {
            :root {
                --section-padding: var(--section-padding-mobile);
            }

            .brand-row {
                height: auto;
                padding: 8px 0;
            }

            .brand-row-inner {
                flex-wrap: wrap;
                gap: 8px;
            }

            .brand-search {
                max-width: 100%;
                order: 3;
                width: 100%;
            }

            .channel-row {
                height: 56px;
            }

            .main-nav>li>a {
                padding: 16px 10px;
                font-size: 13px;
            }

            .site-header.is-sticky .main-nav>li>a {
                padding: 14px 10px;
            }

            .page-banner {
                padding: 24px 0 20px;
            }

            .page-banner h1 {
                font-size: 26px;
            }

            .page-banner .banner-desc {
                font-size: 14px;
            }

            .filter-toolbar {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 16px;
            }

            .content-grid {
                gap: 16px;
            }

            .content-card {
                padding: 16px;
            }

            .data-ranking-section {
                padding: 20px 16px;
            }

            .featured-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .featured-card .featured-img {
                height: 160px;
            }

            .category-entrance-grid {
                grid-template-columns: 1fr;
                gap: 8px;
            }

            .faq-section {
                padding: 20px 16px;
            }

            .rss-cta {
                flex-direction: column;
                align-items: flex-start;
                padding: 20px 16px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                padding-bottom: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }

        @media (max-width: 519px) {
            .brand-logo-text {
                font-size: 14px;
            }

            .brand-logo-mark {
                width: 24px;
                height: 24px;
                font-size: 12px;
            }

            .page-banner h1 {
                font-size: 22px;
            }

            .content-card h3 {
                font-size: 16px;
            }

            .ranking-item {
                gap: 10px;
                padding: 10px 12px;
            }

            .ranking-item .rank-number {
                width: 28px;
                height: 28px;
                font-size: 13px;
            }

            .btn {
                padding: 8px 16px;
                font-size: 13px;
            }
        }

/* roulang page: category6 */
:root {
            --color-primary: #2563EB;
            --color-primary-hover: #1D4ED8;
            --color-primary-bg: #EFF6FF;
            --color-cyan: #06B6D4;
            --color-orange: #F97316;
            --color-bg: #F5F7FB;
            --color-card: #FFFFFF;
            --color-border: #E2E8F0;
            --color-text: #0F172A;
            --color-text-secondary: #475569;
            --color-text-muted: #64748B;
            --color-footer-bg: #0F172A;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 999px;
            --shadow-card: 0 1px 3px rgba(15, 23, 42, .06);
            --shadow-card-hover: 0 16px 32px -12px rgba(37, 99, 235, .18);
            --shadow-nav: 0 4px 12px rgba(15, 23, 42, .08);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "SF UI", "Inter", "Roboto", sans-serif;
            --section-padding: 72px 0;
            --section-padding-mobile: 44px 0;
            --transition: 180ms ease;
            --transition-faq: 200ms ease-in;
        }

        html {
            font-size: 16px;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-cn);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition), background-color var(--transition), border-color var(--transition), box-shadow var(--transition);
        }

        a:hover,
        a:focus {
            color: var(--color-primary);
            outline: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid #BFDBFE;
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        textarea {
            font-family: var(--font-cn);
            font-size: 1rem;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            box-shadow: none;
            transition: box-shadow var(--transition), height var(--transition);
        }

        .site-header.is-sticky {
            box-shadow: var(--shadow-nav);
        }

        .brand-row {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            height: 40px;
            display: flex;
            align-items: center;
            transition: height 200ms ease, opacity 200ms ease;
        }

        .site-header.is-sticky .brand-row {
            height: 0;
            overflow: hidden;
            opacity: 0;
            border-bottom: none;
        }

        .brand-row-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
        }

        .brand-logo-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .brand-logo-mark {
            width: 28px;
            height: 28px;
            background: var(--color-primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 1px;
            flex-shrink: 0;
        }

        .brand-logo-text {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: .5px;
            white-space: nowrap;
        }

        .brand-search {
            flex: 1;
            max-width: 420px;
            display: flex;
            align-items: center;
            gap: 0;
            border-radius: var(--radius-badge);
            overflow: hidden;
            background: #F8FAFC;
            border: 1px solid var(--color-border);
            transition: border-color var(--transition);
        }

        .brand-search:focus-within {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px #BFDBFE;
        }

        .brand-search input {
            border: none;
            outline: none;
            background: transparent;
            padding: 8px 14px;
            font-size: 13px;
            flex: 1;
            min-width: 0;
            color: var(--color-text);
        }

        .brand-search button {
            border: none;
            background: var(--color-primary);
            color: #fff;
            padding: 8px 18px;
            font-size: 13px;
            cursor: pointer;
            transition: background-color var(--transition);
            white-space: nowrap;
        }

        .brand-search button:hover {
            background: var(--color-primary-hover);
        }

        .trend-tags {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        .trend-tag {
            font-size: 12px;
            padding: 4px 12px;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-badge);
            color: var(--color-text-secondary);
            white-space: nowrap;
            transition: border-color var(--transition), color var(--transition);
        }

        .trend-tag:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .channel-row {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            height: 64px;
            display: flex;
            align-items: center;
            transition: height 200ms ease;
        }

        .site-header.is-sticky .channel-row {
            height: 56px;
        }

        .channel-row-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 8px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0;
            flex: 1;
            list-style: none;
            margin: 0;
            padding: 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }

        .main-nav::-webkit-scrollbar {
            display: none;
        }

        .main-nav>li {
            margin: 0;
            flex-shrink: 0;
        }

        .main-nav>li>a {
            display: block;
            padding: 20px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition);
            white-space: nowrap;
        }

        .site-header.is-sticky .main-nav>li>a {
            padding: 16px 14px;
        }

        .main-nav>li>a:hover,
        .main-nav>li>a:focus {
            color: var(--color-primary);
        }

        .main-nav>li>a.active {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
            font-weight: 600;
        }

        .nav-mobile-toggle {
            display: none;
            background: none;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 8px 12px;
            cursor: pointer;
            color: var(--color-text);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: background-color var(--transition);
        }

        .nav-mobile-toggle:hover {
            background: var(--color-primary-bg);
            color: var(--color-primary);
        }

        /* ===== 分类 H1 横幅区 ===== */
        .category-banner {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            padding: 32px 0 28px;
        }

        .category-banner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }

        .category-banner .breadcrumb a {
            color: var(--color-text-muted);
            transition: color var(--transition);
        }

        .category-banner .breadcrumb a:hover {
            color: var(--color-primary);
        }

        .category-banner .breadcrumb .sep {
            color: #CBD5E1;
            font-size: 12px;
        }

        .category-banner .breadcrumb .current {
            color: var(--color-text-secondary);
            font-weight: 500;
        }

        .category-banner h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 10px;
            line-height: 1.35;
            letter-spacing: .3px;
        }

        .category-banner .banner-desc {
            font-size: 15px;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.7;
            max-width: 820px;
        }

        /* ===== 筛选/排序工具条 ===== */
        .filter-toolbar {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 14px 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 24px;
            box-shadow: var(--shadow-card);
        }

        .filter-tabs {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .filter-tab {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text-secondary);
            background: #F8FAFC;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-badge);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .filter-tab:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: var(--color-primary-bg);
        }

        .filter-tab.active {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
        }

        .filter-sort {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-muted);
        }

        .filter-sort select {
            padding: 6px 12px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            background: #fff;
            font-size: 13px;
            color: var(--color-text-secondary);
            cursor: pointer;
            outline: none;
            min-width: 110px;
            transition: border-color var(--transition);
        }

        .filter-sort select:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px #BFDBFE;
        }

        /* ===== 列表主体 ===== */
        .community-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .community-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px 22px;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
            cursor: pointer;
        }

        .community-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: #BFDBFE;
        }

        .community-card-top {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 8px;
        }

        .community-card .post-date {
            font-size: 13px;
            color: var(--color-text-muted);
            font-family: var(--font-num);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 3px 12px;
            font-size: 12px;
            font-weight: 500;
            border-radius: var(--radius-badge);
            white-space: nowrap;
        }

        .badge-blue {
            background: var(--color-primary-bg);
            color: var(--color-primary);
        }

        .badge-cyan {
            background: #ECFEFF;
            color: #0891B2;
        }

        .badge-orange {
            background: #FFF7ED;
            color: #C2410C;
        }

        .badge-green {
            background: #F0FDF4;
            color: #166534;
        }

        .community-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin: 0 0 8px;
            line-height: 1.45;
            color: var(--color-text);
            transition: color var(--transition);
        }

        .community-card:hover h3 {
            color: var(--color-primary);
        }

        .community-card .post-excerpt {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin: 0 0 12px;
            line-height: 1.65;
        }

        .community-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }

        .post-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 12px;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }

        .post-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .post-meta i {
            font-size: 12px;
        }

        .read-more-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-primary);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .read-more-link i {
            font-size: 12px;
            transition: transform var(--transition);
        }

        .read-more-link:hover {
            color: var(--color-primary-hover);
            text-decoration: underline;
        }

        .read-more-link:hover i {
            transform: translateX(3px);
        }

        /* ===== 数据榜单/热门排行 ===== */
        .sidebar-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            box-shadow: var(--shadow-card);
            position: sticky;
            top: 100px;
        }

        .sidebar-card h2 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 16px;
            color: var(--color-text);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card h2 i {
            color: var(--color-orange);
            font-size: 18px;
        }

        .rank-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .rank-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 12px;
            border-radius: 8px;
            background: #F8FAFC;
            border: 1px solid transparent;
            transition: all var(--transition);
            cursor: pointer;
        }

        .rank-item:hover {
            background: var(--color-primary-bg);
            border-color: #BFDBFE;
        }

        .rank-num {
            font-size: 20px;
            font-weight: 700;
            font-family: var(--font-num);
            color: var(--color-primary);
            min-width: 28px;
            line-height: 1.2;
        }

        .rank-num.rank-1 {
            color: var(--color-orange);
        }
        .rank-num.rank-2 {
            color: #0891B2;
        }
        .rank-num.rank-3 {
            color: #CA8A04;
        }

        .rank-content {
            flex: 1;
            min-width: 0;
        }

        .rank-title {
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text);
            line-height: 1.45;
            margin-bottom: 4px;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .rank-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 12px;
            color: var(--color-text-muted);
        }

        .rank-change {
            display: inline-flex;
            align-items: center;
            gap: 3px;
            font-size: 11px;
            font-weight: 500;
        }

        .rank-change.up {
            color: #16A34A;
        }

        .rank-change.down {
            color: #DC2626;
        }

        /* ===== 专题推荐/编辑精选 ===== */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .featured-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }

        .featured-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: #BFDBFE;
        }

        .featured-card .featured-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            background: #E2E8F0;
        }

        .featured-card .featured-body {
            padding: 18px 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }

        .featured-card .featured-badge-row {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .featured-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin: 0;
            line-height: 1.45;
            color: var(--color-text);
            transition: color var(--transition);
        }

        .featured-card:hover h3 {
            color: var(--color-primary);
        }

        .featured-card p {
            font-size: 13px;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.6;
            flex: 1;
        }

        .featured-card .featured-link {
            font-size: 13px;
            font-weight: 500;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .featured-card .featured-link i {
            font-size: 12px;
            transition: transform var(--transition);
        }

        .featured-card .featured-link:hover i {
            transform: translateX(3px);
        }

        /* ===== 分类入口板块 ===== */
        .category-entry-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 14px;
        }

        .category-entry-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 18px 14px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            cursor: pointer;
        }

        .category-entry-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: #BFDBFE;
        }

        .category-entry-card .entry-icon {
            font-size: 26px;
            color: var(--color-primary);
            margin-bottom: 8px;
            display: block;
        }

        .category-entry-card .entry-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            display: block;
            transition: color var(--transition);
        }

        .category-entry-card:hover .entry-name {
            color: var(--color-primary);
        }

        .category-entry-card .entry-sub {
            font-size: 11px;
            color: var(--color-text-muted);
            display: block;
            margin-top: 2px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .faq-item:hover {
            border-color: #BFDBFE;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            background: #fff;
            border: none;
            width: 100%;
            text-align: left;
            transition: background-color var(--transition);
        }

        .faq-question:hover {
            background: #F8FAFC;
        }

        .faq-question .faq-icon {
            font-size: 16px;
            color: var(--color-primary);
            transition: transform var(--transition-faq);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-faq);
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== 订阅 CTA ===== */
        .subscribe-cta {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 36px 28px;
            text-align: center;
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 16px;
        }

        .subscribe-cta h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 0;
            color: var(--color-text);
        }

        .subscribe-cta p {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin: 0;
            max-width: 560px;
        }

        .subscribe-cta .cta-buttons {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 22px;
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: background-color var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--color-primary-hover);
            color: #fff;
        }

        .btn-primary:active {
            box-shadow: inset 0 2px 4px rgba(0, 0, 0, .15);
        }

        .btn-outline {
            background: #fff;
            color: var(--color-primary);
            border: 1px solid var(--color-primary);
        }

        .btn-outline:hover {
            background: var(--color-primary-bg);
            color: var(--color-primary);
        }

        .btn-outline:active {
            background: #DBEAFE;
        }

        /* ===== 通用板块标题 ===== */
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 22px;
        }

        .section-head h2 {
            font-size: 26px;
            font-weight: 700;
            margin: 0;
            color: var(--color-text);
            line-height: 1.35;
        }

        .section-head .section-sub {
            font-size: 14px;
            color: var(--color-text-muted);
            margin: 4px 0 0;
        }

        .section-head .section-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            white-space: nowrap;
        }

        .section-head .section-link i {
            font-size: 12px;
            transition: transform var(--transition);
        }

        .section-head .section-link:hover i {
            transform: translateX(3px);
        }

        /* ===== Section 通用 ===== */
        .content-section {
            padding: var(--section-padding);
        }

        .content-section:nth-child(even) {
            background: #fff;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-footer-bg);
            color: #E2E8F0;
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand-mark {
            width: 32px;
            height: 32px;
            background: var(--color-primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            letter-spacing: 1px;
        }

        .footer-desc {
            font-size: 13px;
            color: #94A3B8;
            line-height: 1.65;
            margin: 0;
            max-width: 320px;
        }

        .footer-column-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 14px;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            font-size: 13px;
            color: #94A3B8;
            transition: color var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: #94A3B8;
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .footer-contact-item i {
            color: var(--color-cyan);
            font-size: 13px;
            flex-shrink: 0;
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid #1E293B;
            padding-top: 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 12px;
            color: #94A3B8;
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-bottom-links a {
            color: #94A3B8;
            transition: color var(--transition);
            font-size: 12px;
        }

        .footer-bottom-links a:hover {
            color: #fff;
        }

        /* ===== 响应式 ===== */
        @media (min-width: 1024px) {
            :root {
                --section-padding: 72px 0;
            }
            .nav-mobile-toggle {
                display: none;
            }
        }

        @media (max-width: 1023px) {
            :root {
                --section-padding: 56px 0;
            }
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-entry-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .brand-search {
                max-width: 320px;
            }
            .trend-tags {
                display: none;
            }
            .sidebar-card {
                position: static;
            }
        }

        @media (max-width: 767px) {
            :root {
                --section-padding: 44px 0;
            }
            .brand-row {
                height: 36px;
            }
            .brand-search {
                max-width: 200px;
            }
            .brand-logo-text {
                font-size: 14px;
            }
            .channel-row {
                height: 56px;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 8px 0;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-nav);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav>li>a {
                padding: 12px 20px;
                border-bottom: none;
                font-size: 14px;
            }
            .main-nav>li>a.active {
                background: var(--color-primary-bg);
                border-left: 3px solid var(--color-primary);
            }
            .nav-mobile-toggle {
                display: inline-flex;
            }
            .category-banner h1 {
                font-size: 26px;
            }
            .category-banner {
                padding: 24px 0 20px;
            }
            .filter-toolbar {
                padding: 12px 14px;
                gap: 10px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .category-entry-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .section-head h2 {
                font-size: 22px;
            }
            .community-card {
                padding: 16px 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .community-card-top {
                gap: 6px;
            }
        }

        @media (max-width: 519px) {
            .brand-search {
                max-width: 140px;
            }
            .brand-search button {
                padding: 8px 12px;
                font-size: 12px;
            }
            .brand-search input {
                padding: 8px 10px;
                font-size: 12px;
            }
            .brand-logo-mark {
                width: 24px;
                height: 24px;
                font-size: 12px;
            }
            .category-entry-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .filter-tab {
                padding: 5px 12px;
                font-size: 12px;
            }
            .community-card h3 {
                font-size: 16px;
            }
            .section-head h2 {
                font-size: 20px;
            }
        }

/* roulang page: category7 */
:root {
            --color-primary: #2563EB;
            --color-primary-hover: #1D4ED8;
            --color-primary-bg: #EFF6FF;
            --color-cyan: #06B6D4;
            --color-orange: #F97316;
            --color-bg: #F5F7FB;
            --color-card: #FFFFFF;
            --color-border: #E2E8F0;
            --color-text: #0F172A;
            --color-text-secondary: #475569;
            --color-text-muted: #64748B;
            --color-footer-bg: #0F172A;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 999px;
            --shadow-card: 0 1px 3px rgba(15, 23, 42, .06);
            --shadow-card-hover: 0 16px 32px -12px rgba(37, 99, 235, .18);
            --shadow-nav: 0 4px 12px rgba(15, 23, 42, .08);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "SF UI", "Inter", "Roboto", sans-serif;
            --section-padding: 80px 0;
            --section-padding-mobile: 48px 0;
            --transition: 180ms ease;
            --transition-faq: 200ms ease-in;
        }

        html {
            font-size: 16px;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-cn);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition), background-color var(--transition), border-color var(--transition), box-shadow var(--transition);
        }

        a:hover,
        a:focus {
            color: var(--color-primary);
            outline: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid #BFDBFE;
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        textarea {
            font-family: var(--font-cn);
            font-size: 1rem;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            box-shadow: none;
            transition: box-shadow var(--transition), height var(--transition);
        }

        .site-header.is-sticky {
            box-shadow: var(--shadow-nav);
        }

        .brand-row {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            height: 40px;
            display: flex;
            align-items: center;
            transition: height 200ms ease, opacity 200ms ease;
        }

        .site-header.is-sticky .brand-row {
            height: 0;
            overflow: hidden;
            opacity: 0;
            border-bottom: none;
        }

        .brand-row-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
        }

        .brand-logo-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .brand-logo-mark {
            width: 28px;
            height: 28px;
            background: var(--color-primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 1px;
            flex-shrink: 0;
        }

        .brand-logo-text {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: .5px;
            white-space: nowrap;
        }

        .brand-search {
            flex: 1;
            max-width: 420px;
            display: flex;
            align-items: center;
            gap: 0;
            border-radius: var(--radius-badge);
            overflow: hidden;
            background: #F8FAFC;
            border: 1px solid var(--color-border);
            transition: border-color var(--transition);
        }

        .brand-search:focus-within {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px #BFDBFE;
        }

        .brand-search input {
            border: none;
            outline: none;
            background: transparent;
            padding: 8px 14px;
            font-size: 13px;
            flex: 1;
            min-width: 0;
            color: var(--color-text);
        }

        .brand-search button {
            border: none;
            background: var(--color-primary);
            color: #fff;
            padding: 8px 18px;
            font-size: 13px;
            cursor: pointer;
            transition: background-color var(--transition);
            white-space: nowrap;
        }

        .brand-search button:hover {
            background: var(--color-primary-hover);
        }

        .trend-tags {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        .trend-tag {
            font-size: 12px;
            padding: 4px 12px;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-badge);
            color: var(--color-text-secondary);
            white-space: nowrap;
            transition: border-color var(--transition), color var(--transition);
        }

        .trend-tag:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .channel-row {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            height: 64px;
            display: flex;
            align-items: center;
            transition: height 200ms ease;
        }

        .site-header.is-sticky .channel-row {
            height: 56px;
        }

        .channel-row-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 8px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0;
            flex: 1;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .main-nav>li {
            margin: 0;
        }

        .main-nav>li>a {
            display: block;
            padding: 20px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition);
            white-space: nowrap;
        }

        .site-header.is-sticky .main-nav>li>a {
            padding: 16px 14px;
        }

        .main-nav>li>a:hover,
        .main-nav>li>a:focus {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
        }

        .main-nav>li>a.active {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
            font-weight: 600;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--color-text);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-btn);
            transition: background-color var(--transition);
        }

        .mobile-toggle:hover {
            background: var(--color-primary-bg);
        }

        .mobile-menu {
            display: none;
            background: #fff;
            border-top: 1px solid var(--color-border);
            padding: 12px 0;
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-menu .mobile-search {
            padding: 0 20px 12px;
        }

        .mobile-menu .mobile-search input {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-badge);
            font-size: 14px;
            outline: none;
        }

        .mobile-menu .mobile-search input:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px #BFDBFE;
        }

        .mobile-menu .mobile-nav-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .mobile-menu .mobile-nav-list a {
            display: block;
            padding: 12px 20px;
            font-size: 15px;
            color: var(--color-text);
            border-left: 3px solid transparent;
        }

        .mobile-menu .mobile-nav-list a:hover,
        .mobile-menu .mobile-nav-list a.active {
            background: var(--color-primary-bg);
            color: var(--color-primary);
            border-left-color: var(--color-primary);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-section {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            padding: 12px 0;
        }

        .breadcrumb-list {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-muted);
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }

        .breadcrumb-list li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb-list li a {
            color: var(--color-text-muted);
            transition: color var(--transition);
        }

        .breadcrumb-list li a:hover {
            color: var(--color-primary);
        }

        .breadcrumb-list li:last-child {
            color: var(--color-primary);
            font-weight: 500;
        }

        .breadcrumb-list .separator {
            color: var(--color-border);
            font-size: 12px;
        }

        /* ===== Category Hero ===== */
        .category-hero {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            padding: 40px 0 44px;
        }

        .category-hero-content {
            display: flex;
            align-items: flex-start;
            gap: 32px;
            flex-wrap: wrap;
        }

        .category-hero-text {
            flex: 1;
            min-width: 280px;
        }

        .category-hero h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 12px;
            line-height: 1.3;
        }

        .category-hero .category-desc {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin: 0;
            max-width: 720px;
        }

        .category-hero-image {
            flex-shrink: 0;
            width: 260px;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .category-hero-image img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: var(--radius-card);
        }

        /* ===== Filter Toolbar ===== */
        .filter-toolbar {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 14px 20px;
            margin: 24px 0 32px;
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .filter-toolbar-label {
            font-size: 13px;
            color: var(--color-text-muted);
            font-weight: 500;
            white-space: nowrap;
        }

        .filter-tabs {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .filter-tabs li {
            margin: 0;
        }

        .filter-tabs button {
            padding: 6px 16px;
            font-size: 13px;
            border: 1px solid var(--color-border);
            background: #fff;
            border-radius: var(--radius-badge);
            color: var(--color-text-secondary);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .filter-tabs button:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .filter-tabs button.active {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
            font-weight: 500;
        }

        .filter-sort {
            margin-left: auto;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .filter-sort select {
            padding: 6px 12px;
            font-size: 13px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            background: #fff;
            color: var(--color-text);
            cursor: pointer;
            outline: none;
            transition: border-color var(--transition);
        }

        .filter-sort select:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px #BFDBFE;
        }

        /* ===== Main Content Layout ===== */
        .community-main {
            padding: 0 0 80px;
        }

        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 28px;
            align-items: start;
        }

        /* ===== Discussion List ===== */
        .discussion-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .discussion-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 20px 24px;
            transition: all var(--transition);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

        .discussion-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: #BFDBFE;
        }

        .discussion-avatar {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-primary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 16px;
            overflow: hidden;
        }

        .discussion-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 50%;
        }

        .discussion-body {
            flex: 1;
            min-width: 0;
        }

        .discussion-header {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 6px;
        }

        .discussion-author {
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text-secondary);
        }

        .discussion-date {
            font-size: 12px;
            color: var(--color-text-muted);
        }

        .discussion-badge {
            font-size: 12px;
            padding: 2px 10px;
            background: var(--color-primary-bg);
            color: var(--color-primary);
            border-radius: var(--radius-badge);
            white-space: nowrap;
        }

        .discussion-badge.hot {
            background: #FFF7ED;
            color: var(--color-orange);
        }

        .discussion-badge.cyan {
            background: #ECFEFF;
            color: var(--color-cyan);
        }

        .discussion-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            margin: 0 0 8px;
            line-height: 1.5;
            display: block;
        }

        .discussion-title a {
            color: inherit;
            transition: color var(--transition);
        }

        .discussion-title a:hover {
            color: var(--color-primary);
        }

        .discussion-excerpt {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0 0 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .discussion-footer {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .discussion-stats {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--color-text-muted);
        }

        .discussion-stats span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .discussion-stats i {
            font-size: 13px;
        }

        .read-more-btn {
            font-size: 13px;
            color: var(--color-primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .read-more-btn:hover {
            color: var(--color-primary-hover);
            text-decoration: underline;
        }

        .read-more-btn i {
            font-size: 12px;
            transition: transform var(--transition);
        }

        .read-more-btn:hover i {
            transform: translateX(3px);
        }

        /* ===== Sidebar ===== */
        .sidebar-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 20px;
            margin-bottom: 24px;
        }

        .sidebar-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--color-primary-bg);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .sidebar-title .trend-dot {
            font-size: 12px;
            color: var(--color-cyan);
            font-weight: 500;
        }

        .hot-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .hot-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 0;
            border-bottom: 1px solid #F1F5F9;
            transition: background-color var(--transition);
            border-radius: 6px;
            padding: 8px;
        }

        .hot-list li:last-child {
            border-bottom: none;
        }

        .hot-list li:hover {
            background: #F8FAFC;
        }

        .hot-rank {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            color: var(--color-text-muted);
            background: #F1F5F9;
        }

        .hot-list li:nth-child(1) .hot-rank {
            background: #FEF3C7;
            color: #F59E0B;
        }

        .hot-list li:nth-child(2) .hot-rank {
            background: #E2E8F0;
            color: #475569;
        }

        .hot-list li:nth-child(3) .hot-rank {
            background: #FFEDD5;
            color: #EA580C;
        }

        .hot-info {
            flex: 1;
            min-width: 0;
        }

        .hot-info a {
            font-size: 13px;
            color: var(--color-text);
            font-weight: 500;
            display: block;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            transition: color var(--transition);
        }

        .hot-info a:hover {
            color: var(--color-primary);
        }

        .hot-meta {
            font-size: 12px;
            color: var(--color-text-muted);
            margin-top: 2px;
        }

        .hot-change {
            flex-shrink: 0;
            font-size: 12px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 2px;
        }

        .hot-change.up {
            color: #16A34A;
        }

        .hot-change.down {
            color: #DC2626;
        }

        /* ===== Featured Topics ===== */
        .featured-topics {
            margin: 40px 0 48px;
        }

        .featured-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 20px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .featured-title i {
            color: var(--color-primary);
            font-size: 20px;
        }

        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .featured-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition);
        }

        .featured-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .featured-card-image {
            position: relative;
            height: 160px;
            overflow: hidden;
        }

        .featured-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }

        .featured-card:hover .featured-card-image img {
            transform: scale(1.03);
        }

        .featured-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            font-size: 12px;
            border-radius: var(--radius-badge);
            background: rgba(37, 99, 235, .9);
            color: #fff;
            font-weight: 500;
        }

        .featured-card-content {
            padding: 16px 20px 20px;
        }

        .featured-card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            margin: 0 0 8px;
            line-height: 1.5;
        }

        .featured-card-desc {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0 0 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .featured-card-link {
            font-size: 13px;
            color: var(--color-primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .featured-card-link:hover {
            color: var(--color-primary-hover);
            text-decoration: underline;
        }

        /* ===== Category Entry Section ===== */
        .category-entry-section {
            margin: 48px 0;
        }

        .category-entry-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 20px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .category-entry-title i {
            color: var(--color-primary);
            font-size: 20px;
        }

        .category-entry-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
        }

        .category-entry-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 16px 18px;
            box-shadow: var(--shadow-card);
            display: flex;
            align-items: center;
            gap: 10px;
            transition: all var(--transition);
        }

        .category-entry-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: #BFDBFE;
        }

        .category-entry-icon {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--color-primary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-size: 16px;
        }

        .category-entry-info {
            flex: 1;
            min-width: 0;
        }

        .category-entry-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            display: block;
        }

        .category-entry-count {
            font-size: 12px;
            color: var(--color-text-muted);
        }

        /* ===== FAQ ===== */
        .faq-section {
            margin: 48px 0;
        }

        .faq-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 20px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .faq-title i {
            color: var(--color-primary);
            font-size: 20px;
        }

        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            margin-bottom: 10px;
            overflow: hidden;
        }

        .faq-question {
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--color-text);
            transition: background-color var(--transition);
            gap: 16px;
            user-select: none;
        }

        .faq-question:hover {
            background: #F8FAFC;
        }

        .faq-question .faq-toggle-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-primary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-size: 14px;
            transition: transform var(--transition-faq);
        }

        .faq-item.open .faq-toggle-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-faq);
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin: 0;
            padding: 0;
        }

        /* ===== Subscribe CTA ===== */
        .subscribe-section {
            background: var(--color-primary-bg);
            border: 1px solid #BFDBFE;
            border-radius: var(--radius-card);
            padding: 32px 36px;
            margin: 48px 0 0;
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
        }

        .subscribe-content {
            flex: 1;
            min-width: 260px;
        }

        .subscribe-content h2 {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 6px;
        }

        .subscribe-content p {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        .subscribe-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            border: none;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--color-primary-hover);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--color-primary);
            color: var(--color-primary);
        }

        .btn-outline:hover {
            background: var(--color-primary-bg);
            color: var(--color-primary-hover);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-footer-bg);
            color: #E2E8F0;
            padding: 48px 0 24px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand-mark {
            width: 30px;
            height: 30px;
            background: var(--color-primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 15px;
        }

        .footer-desc {
            font-size: 13px;
            color: #94A3B8;
            line-height: 1.7;
            margin: 0;
        }

        .footer-column-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 12px;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            font-size: 13px;
            color: #94A3B8;
            transition: color var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: #94A3B8;
            margin-bottom: 8px;
        }

        .footer-contact-item i {
            color: var(--color-primary);
            font-size: 14px;
            flex-shrink: 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(226, 232, 240, .12);
            padding-top: 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 12px;
            color: #94A3B8;
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-bottom-links a {
            color: #94A3B8;
            transition: color var(--transition);
        }

        .footer-bottom-links a:hover {
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .category-entry-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .brand-row .trend-tags {
                display: none;
            }

            .main-nav>li>a {
                padding: 20px 10px;
                font-size: 14px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-padding: var(--section-padding-mobile);
            }

            .brand-row {
                height: 48px;
            }

            .brand-search {
                max-width: 200px;
            }

            .brand-search button {
                padding: 8px 12px;
                font-size: 12px;
            }

            .channel-row {
                height: 56px;
            }

            .main-nav {
                display: none;
            }

            .mobile-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }

            .mobile-menu.open {
                display: block;
            }

            .category-hero {
                padding: 28px 0 32px;
            }

            .category-hero h1 {
                font-size: 26px;
            }

            .category-hero-image {
                width: 100%;
                max-width: 400px;
            }

            .filter-toolbar {
                padding: 12px 16px;
                gap: 10px;
            }

            .filter-sort {
                margin-left: 0;
                width: 100%;
            }

            .filter-sort select {
                width: 100%;
            }

            .discussion-card {
                padding: 16px 18px;
                flex-direction: column;
                gap: 12px;
            }

            .featured-grid {
                grid-template-columns: 1fr;
            }

            .category-entry-grid {
                grid-template-columns: 1fr;
            }

            .subscribe-section {
                padding: 24px 20px;
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }

            .brand-logo-text {
                font-size: 14px;
            }

            .brand-search {
                max-width: 150px;
            }

            .category-hero h1 {
                font-size: 22px;
            }

            .discussion-title {
                font-size: 15px;
            }

            .discussion-excerpt {
                font-size: 13px;
            }

            .featured-title,
            .category-entry-title,
            .faq-title {
                font-size: 20px;
            }

            .subscribe-content h2 {
                font-size: 18px;
            }
        }