/* roulang page: index */
:root {
      --primary: #0E1116;
      --accent: #00E0B8;
      --warm: #F2F1EC;
      --alert: #FF5C28;
      --text: #1A1A1A;
      --muted: #4A4A4A;
      --light-muted: #6B7280;
      --line: #E7E5DE;
      --white: #ffffff;
      --soft-accent: rgba(0, 224, 184, 0.12);
      --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.04);
      --shadow-md: 0 12px 28px rgba(0, 0, 0, 0.08);
      --radius-sm: 12px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --radius-xl: 32px;
      --max-width: 1200px;
      --section-gap: 72px;
      --nav-height: 64px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
      font-size: 16px;
      line-height: 1.85;
      color: var(--text);
      background-color: var(--warm);
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

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

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    }

    button, input {
      font-family: inherit;
      font-size: inherit;
    }

    button {
      cursor: pointer;
    }

    .container {
      width: min(100% - 32px, var(--max-width));
      margin: 0 auto;
    }

    /* Header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: var(--primary);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
    }

    .brand-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      height: var(--nav-height);
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 22px;
      font-weight: 800;
      color: var(--white);
      letter-spacing: -0.5px;
      white-space: nowrap;
    }

    .logo .logo-mark {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 32px;
      height: 32px;
      background-color: var(--accent);
      color: var(--primary);
      font-size: 16px;
      font-weight: 900;
      border-radius: 8px;
    }

    .brand-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .brand-actions .search-btn,
    .brand-actions .subscribe-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      height: 38px;
      padding: 0 14px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 700;
      border: 1px solid rgba(255, 255, 255, 0.18);
      background-color: transparent;
      color: var(--white);
      transition: all 0.2s ease;
    }

    .brand-actions .search-btn:hover,
    .brand-actions .subscribe-btn:hover {
      background-color: rgba(255, 255, 255, 0.08);
      border-color: var(--accent);
      color: var(--accent);
    }

    .brand-actions .subscribe-btn {
      background-color: var(--accent);
      border-color: var(--accent);
      color: var(--primary);
    }

    .brand-actions .subscribe-btn:hover {
      filter: brightness(1.06);
    }

    .chip-nav-wrap {
      padding: 8px 0 12px;
      overflow-x: auto;
      -webkit-overflow-scrolling: touch;
      scrollbar-width: none;
      -ms-overflow-style: none;
    }

    .chip-nav-wrap::-webkit-scrollbar {
      display: none;
    }

    .chip-nav {
      display: flex;
      gap: 8px;
      width: max-content;
      min-width: 100%;
    }

    .chip-nav a {
      flex: 0 0 auto;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 36px;
      padding: 0 16px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 600;
      color: #E5E7EB;
      border: 1px solid rgba(255, 255, 255, 0.22);
      background-color: transparent;
      transition: all 0.2s ease;
      white-space: nowrap;
    }

    .chip-nav a:hover {
      background-color: rgba(0, 224, 184, 0.16);
      border-color: rgba(0, 224, 184, 0.6);
      color: var(--accent);
    }

    .chip-nav a.active {
      background-color: var(--accent);
      border-color: var(--accent);
      color: var(--primary);
    }

    /* Hero */
    .hero {
      position: relative;
      min-height: 78vh;
      display: flex;
      align-items: center;
      background: var(--primary) url('/assets/images/25902f2b83ed24dc.webp') center/cover no-repeat;
      padding: 72px 0;
      overflow: hidden;
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(14, 17, 22, 0.95) 0%, rgba(14, 17, 22, 0.72) 55%, rgba(14, 17, 22, 0.45) 100%);
      z-index: 1;
    }

    .hero-inner {
      position: relative;
      z-index: 2;
      width: min(100% - 32px, var(--max-width));
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }

    .hero-copy {
      color: var(--white);
    }

    .hero-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 700;
      color: var(--accent);
      letter-spacing: 0.04em;
      margin-bottom: 18px;
    }

    .hero-kicker::before {
      content: "";
      width: 26px;
      height: 2px;
      background-color: var(--accent);
    }

    .hero h1 {
      font-size: clamp(36px, 5vw, 72px);
      line-height: 1.08;
      font-weight: 900;
      letter-spacing: -1.5px;
      margin-bottom: 24px;
      color: var(--white);
    }

    .hero h1 .highlight {
      color: var(--accent);
      position: relative;
      white-space: nowrap;
    }

    .hero h1 .highlight::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 4px;
      height: 8px;
      background: rgba(0, 224, 184, 0.25);
      z-index: -1;
      border-radius: 999px;
    }

    .hero-subtitle {
      font-size: 18px;
      line-height: 1.9;
      color: #D1D5DB;
      margin-bottom: 28px;
      max-width: 620px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 0 22px;
      height: 46px;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 800;
      transition: all 0.22s ease;
      border: 1px solid transparent;
    }

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

    .btn-primary:hover {
      filter: brightness(1.08);
      box-shadow: 0 10px 24px rgba(0, 224, 184, 0.35);
      transform: translateY(-1px);
    }

    .btn-secondary {
      background-color: transparent;
      border-color: rgba(255, 255, 255, 0.35);
      color: var(--white);
    }

    .btn-secondary:hover {
      border-color: var(--accent);
      color: var(--accent);
      background-color: rgba(0, 224, 184, 0.08);
    }

    .btn:focus-visible {
      outline: 3px solid var(--accent);
      outline-offset: 3px;
    }

    .hero-panel {
      background: rgba(14, 17, 22, 0.78);
      border: 1px solid rgba(255, 255, 255, 0.14);
      border-radius: var(--radius-lg);
      padding: 22px;
      box-shadow: var(--shadow-md);
      backdrop-filter: blur(10px);
    }

    .hero-panel-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 16px;
      color: #E5E7EB;
    }

    .hero-panel-header strong {
      font-size: 16px;
      color: var(--white);
    }

    .live-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--alert);
      box-shadow: 0 0 0 5px rgba(255, 92, 40, 0.18);
      display: inline-block;
      margin-right: 6px;
    }

    .hero-panel-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .hero-match-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 10px;
      border-radius: 14px;
      background: rgba(255, 255, 255, 0.06);
      transition: background 0.2s ease;
    }

    .hero-match-item:hover {
      background: rgba(0, 224, 184, 0.12);
    }

    .hero-match-item .match-name {
      color: #F9FAFB;
      font-size: 14px;
      font-weight: 700;
    }

    .hero-match-item .match-info {
      color: #9CA3AF;
      font-size: 12px;
    }

    .hero-match-item .match-tag {
      flex: 0 0 auto;
      font-size: 12px;
      font-weight: 700;
      color: var(--primary);
      background: var(--accent);
      padding: 3px 8px;
      border-radius: 999px;
    }

    /* Section */
    section {
      padding: var(--section-gap) 0;
    }

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

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

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

    .section-header {
      max-width: 820px;
      margin-bottom: 36px;
    }

    .section-header.compact {
      margin-bottom: 20px;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.04em;
      color: var(--accent);
      text-transform: uppercase;
      margin-bottom: 10px;
    }

    .section-kicker::before {
      content: "";
      width: 22px;
      height: 2px;
      background-color: var(--accent);
    }

    .section-title {
      font-size: clamp(26px, 3.5vw, 38px);
      line-height: 1.2;
      font-weight: 900;
      letter-spacing: -0.5px;
      color: var(--primary);
      margin-bottom: 12px;
    }

    .section-bg-dark .section-title {
      color: var(--white);
    }

    .section-desc {
      font-size: 16px;
      line-height: 1.9;
      color: var(--muted);
      max-width: 780px;
    }

    .section-bg-dark .section-desc {
      color: #D1D5DB;
    }

    .section-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-weight: 700;
      color: var(--accent);
    }

    .section-link:hover {
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    /* Cards */
    .grid {
      display: grid;
      gap: 24px;
    }

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

    .grid-3 {
      grid-template-columns: repeat(3, 1fr);
    }

    .grid-4 {
      grid-template-columns: repeat(4, 1fr);
    }

    .card {
      background-color: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 20px;
      box-shadow: var(--shadow-sm);
      transition: transform 0.2s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    }

    .card:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-md);
      border-color: rgba(0, 224, 184, 0.7);
    }

    .card:active {
      transform: translateY(0);
      box-shadow: var(--shadow-sm);
    }

    .card h3 {
      font-size: 20px;
      line-height: 1.35;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--primary);
      letter-spacing: -0.3px;
    }

    .card p {
      font-size: 15px;
      line-height: 1.8;
      color: var(--muted);
    }

    .card-icon {
      width: 46px;
      height: 46px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 14px;
      background: var(--soft-accent);
      color: var(--accent);
      font-size: 22px;
      font-weight: 900;
      margin-bottom: 14px;
    }

    /* Hero search / entry */
    .search-hero-wrap {
      background: var(--white);
      border-radius: var(--radius-lg);
      border: 1px solid var(--line);
      box-shadow: var(--shadow-md);
      padding: 24px;
      margin-top: -44px;
      position: relative;
      z-index: 5;
    }

    .search-form {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
    }

    .search-form input {
      flex: 1 1 240px;
      height: 48px;
      border: 1px solid var(--line);
      border-radius: 999px;
      padding: 0 18px;
      font-size: 15px;
      background-color: #F9FAFB;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .search-form input:focus {
      outline: none;
      border-color: var(--accent);
      box-shadow: 0 0 0 4px rgba(0, 224, 184, 0.15);
      background-color: var(--white);
    }

    .hot-tags {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
      margin-top: 10px;
    }

    .hot-tags span {
      font-size: 13px;
      color: var(--light-muted);
      font-weight: 600;
    }

    .hot-tags a {
      display: inline-flex;
      align-items: center;
      height: 28px;
      padding: 0 12px;
      border-radius: 999px;
      background: var(--warm);
      border: 1px solid var(--line);
      font-size: 13px;
      font-weight: 600;
      color: var(--muted);
      transition: all 0.2s ease;
    }

    .hot-tags a:hover {
      border-color: var(--accent);
      color: var(--primary);
      background: var(--soft-accent);
    }

    /* News list */
    .news-list {
      display: flex;
      flex-direction: column;
      gap: 0;
    }

    .news-item {
      display: grid;
      grid-template-columns: 90px 1fr;
      gap: 20px;
      padding: 22px 0;
      border-bottom: 1px solid var(--line);
    }

    .news-item:last-child {
      border-bottom: 0;
    }

    .news-date {
      background: var(--primary);
      color: var(--white);
      border-radius: var(--radius-sm);
      padding: 10px 8px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      height: fit-content;
      min-height: 72px;
    }

    .news-date .day {
      font-size: 24px;
      font-weight: 900;
      color: var(--accent);
      line-height: 1.1;
    }

    .news-date .month {
      font-size: 12px;
      color: #D1D5DB;
    }

    .news-content h3 {
      font-size: 18px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 6px;
    }

    .news-content p {
      font-size: 14px;
      line-height: 1.75;
      color: var(--muted);
      margin-bottom: 8px;
      max-width: 760px;
    }

    .read-more {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      font-size: 13px;
      font-weight: 700;
      color: var(--accent);
    }

    .read-more:hover {
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    /* Data metric */
    .metric-list {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .metric-item {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 20px;
      box-shadow: var(--shadow-sm);
    }

    .metric-item .metric-value {
      font-size: 34px;
      font-weight: 900;
      letter-spacing: -1px;
      color: var(--primary);
      line-height: 1.2;
    }

    .metric-item .metric-value.accent {
      color: var(--accent);
    }

    .metric-item .metric-value.alert {
      color: var(--alert);
    }

    .metric-item .metric-label {
      font-size: 13px;
      color: var(--light-muted);
      font-weight: 600;
      margin-top: 4px;
    }

    /* Brand intro */
    .brand-intro {
      display: grid;
      grid-template-columns: 0.85fr 1.15fr;
      gap: 40px;
      align-items: center;
    }

    .brand-intro .brand-visual {
      background: var(--primary) url('/assets/images/22f595ab3846b09c.webp') center/cover no-repeat;
      border-radius: var(--radius-lg);
      min-height: 280px;
      position: relative;
      overflow: hidden;
    }

    .brand-intro .brand-visual::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(140deg, rgba(14, 17, 22, 0.18) 0%, rgba(14, 17, 22, 0.66) 100%);
    }

    .brand-intro .brand-text p {
      font-size: 16px;
      line-height: 2;
      color: var(--muted);
      margin-bottom: 14px;
    }

    .brand-intro .brand-text strong {
      color: var(--primary);
    }

    /* Topic cards */
    .topic-card {
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }

    .topic-card img {
      width: 100%;
      aspect-ratio: 16/9;
      object-fit: cover;
      border-radius: 12px;
      margin-bottom: 16px;
    }

    .topic-card .topic-tag {
      display: inline-flex;
      align-items: center;
      height: 24px;
      padding: 0 10px;
      border-radius: 999px;
      background: var(--soft-accent);
      color: var(--primary);
      font-size: 12px;
      font-weight: 700;
      margin-bottom: 10px;
      width: fit-content;
    }

    /* Scene cards */
    .scene-card {
      background: var(--white);
      border-radius: var(--radius-md);
      border: 1px solid var(--line);
      padding: 22px;
      display: flex;
      align-items: center;
      gap: 16px;
      transition: all 0.2s ease;
    }

    .scene-card:hover {
      border-color: var(--accent);
      box-shadow: var(--shadow-md);
    }

    .scene-card .scene-icon {
      flex: 0 0 52px;
      width: 52px;
      height: 52px;
      border-radius: 16px;
      background: var(--primary);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: 900;
    }

    .scene-card h3 {
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 4px;
      color: var(--primary);
    }

    .scene-card p {
      font-size: 14px;
      color: var(--muted);
    }

    /* FAQ */
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 0;
      overflow: hidden;
      transition: box-shadow 0.2s ease, border-color 0.2s ease;
    }

    .faq-item:hover {
      border-color: var(--accent);
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 18px 20px;
      font-size: 18px;
      font-weight: 800;
      color: var(--primary);
      background: transparent;
      border: 0;
      text-align: left;
      transition: background 0.2s ease;
    }

    .faq-question:hover {
      background: #F7F6F2;
    }

    .faq-icon {
      flex: 0 0 24px;
      display: flex;
      align-items: center;
      justify-content: center;
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: var(--warm);
      color: var(--primary);
      font-size: 22px;
      font-weight: 700;
      transition: transform 0.2s ease, background 0.2s ease;
    }

    .faq-answer {
      padding: 0 20px 18px;
      color: var(--muted);
      font-size: 16px;
      line-height: 1.8;
      display: none;
    }

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

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

    /* Tool cards */
    .tool-card {
      background: var(--white);
      border-radius: var(--radius-md);
      border: 1px solid var(--line);
      padding: 20px;
      display: flex;
      align-items: center;
      gap: 16px;
      transition: all 0.2s ease;
    }

    .tool-card:hover {
      border-color: var(--accent);
      box-shadow: var(--shadow-md);
      transform: translateY(-2px);
    }

    .tool-card .tool-badge {
      flex: 0 0 54px;
      width: 54px;
      height: 54px;
      border-radius: 16px;
      background: var(--accent);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      font-weight: 900;
    }

    .tool-card h3 {
      font-size: 17px;
      font-weight: 800;
      margin-bottom: 4px;
      color: var(--primary);
    }

    .tool-card p {
      font-size: 14px;
      color: var(--muted);
    }

    /* Subscribe */
    .subscribe-box {
      background: var(--white);
      border-radius: var(--radius-lg);
      border: 1px solid var(--line);
      padding: 32px;
      box-shadow: var(--shadow-sm);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      flex-wrap: wrap;
    }

    .subscribe-input {
      flex: 1 1 260px;
      height: 48px;
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: 0 16px;
      font-size: 15px;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
      background: #F9FAFB;
    }

    .subscribe-input:focus {
      outline: none;
      border-color: var(--accent);
      box-shadow: 0 0 0 4px rgba(0, 224, 184, 0.15);
      background: var(--white);
    }

    /* CTA */
    .cta-panel {
      background: var(--primary) url('/assets/images/464ac970ecc67539.webp') center/cover no-repeat;
      border-radius: var(--radius-lg);
      padding: 48px 36px;
      position: relative;
      overflow: hidden;
    }

    .cta-panel::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, rgba(14, 17, 22, 0.96) 0%, rgba(14, 17, 22, 0.72) 100%);
    }

    .cta-panel-inner {
      position: relative;
      z-index: 2;
      max-width: 720px;
    }

    .cta-panel h2 {
      font-size: 30px;
      font-weight: 900;
      color: var(--white);
      margin-bottom: 10px;
    }

    .cta-panel p {
      color: #D1D5DB;
      margin-bottom: 22px;
    }

    /* Footer */
    .site-footer {
      background: var(--primary);
      color: #D1D5DB;
      padding: 56px 0 28px;
    }

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

    .footer-brand .logo {
      margin-bottom: 12px;
    }

    .footer-brand p {
      font-size: 14px;
      color: #9CA3AF;
      max-width: 420px;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      align-content: flex-start;
    }

    .footer-links a {
      display: inline-flex;
      align-items: center;
      height: 34px;
      padding: 0 14px;
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, 0.22);
      font-size: 13px;
      font-weight: 600;
      color: #E5E7EB;
      transition: all 0.2s ease;
    }

    .footer-links a:hover {
      border-color: var(--accent);
      color: var(--accent);
      background: rgba(0, 224, 184, 0.08);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      font-size: 13px;
      color: #9CA3AF;
    }

    .footer-bottom a {
      color: #D1D5DB;
      font-weight: 600;
    }

    .footer-bottom a:hover {
      color: var(--accent);
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .hero-inner {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }

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

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

      .brand-intro .brand-visual {
        min-height: 220px;
      }
    }

    @media (max-width: 768px) {
      :root {
        --section-gap: 56px;
        --nav-height: 56px;
      }

      .brand-row {
        height: var(--nav-height);
      }

      .logo {
        font-size: 18px;
      }

      .brand-actions .search-btn,
      .brand-actions .subscribe-btn {
        height: 34px;
        padding: 0 10px;
        font-size: 13px;
      }

      .hero {
        min-height: auto;
        padding: 56px 0;
      }

      .hero h1 {
        font-size: 36px;
      }

      .hero-subtitle {
        font-size: 16px;
      }

      .grid-2,
      .grid-3,
      .grid-4 {
        grid-template-columns: 1fr;
      }

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

      .news-item {
        grid-template-columns: 1fr;
        gap: 10px;
      }

      .news-date {
        flex-direction: row;
        min-height: auto;
        justify-content: flex-start;
        gap: 6px;
        padding: 6px 10px;
      }

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

      .subscribe-box {
        padding: 22px;
      }
    }

    @media (max-width: 520px) {
      .metric-list {
        grid-template-columns: 1fr;
      }

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

      .hero-actions .btn {
        width: 100%;
      }

      .cta-panel {
        padding: 34px 22px;
      }

      .cta-panel h2 {
        font-size: 24px;
      }

      .search-form input {
        width: 100%;
        flex-basis: 100%;
      }
    }

/* roulang page: category1 */
:root {
        --primary: #0E1116;
        --accent: #00E0B8;
        --warm: #F2F1EC;
        --alert: #FF5C28;
        --text: #1A1A1A;
        --muted: #4A4A4A;
        --light-muted: #6B7280;
        --line: #E7E5DE;
        --white: #ffffff;
        --soft-accent: rgba(0, 224, 184, 0.12);
        --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.04);
        --shadow-md: 0 12px 28px rgba(0, 0, 0, 0.08);
        --radius-sm: 12px;
        --radius-md: 16px;
        --radius-lg: 24px;
        --radius-xl: 32px;
        --max-width: 1200px;
        --section-gap: 72px;
        --nav-height: 64px;
    }

    html {
        scroll-behavior: smooth;
    }

    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }

    body {
        font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        font-size: 16px;
        line-height: 1.85;
        color: var(--text);
        background-color: var(--warm);
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

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

    a {
        color: inherit;
        text-decoration: none;
        transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    }

    button,
    input {
        font-family: inherit;
        font-size: inherit;
    }

    button {
        cursor: pointer;
    }

    .container {
        width: min(100% - 32px, var(--max-width));
        margin: 0 auto;
    }

    /* Header */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
        background-color: var(--primary);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
    }

    .brand-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        height: var(--nav-height);
    }

    .logo {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 22px;
        font-weight: 800;
        color: var(--white);
        letter-spacing: -0.5px;
        white-space: nowrap;
    }

    .logo .logo-mark {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 32px;
        height: 32px;
        background-color: var(--accent);
        color: var(--primary);
        font-size: 16px;
        font-weight: 900;
        border-radius: 8px;
    }

    .brand-actions {
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .brand-actions .search-btn,
    .brand-actions .subscribe-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 6px;
        height: 38px;
        padding: 0 14px;
        border-radius: 999px;
        font-size: 14px;
        font-weight: 700;
        border: 1px solid rgba(255, 255, 255, 0.18);
        background-color: transparent;
        color: var(--white);
        transition: all 0.2s ease;
    }

    .brand-actions .search-btn:hover,
    .brand-actions .subscribe-btn:hover {
        background-color: rgba(255, 255, 255, 0.08);
        border-color: var(--accent);
        color: var(--accent);
    }

    .brand-actions .subscribe-btn {
        background-color: var(--accent);
        border-color: var(--accent);
        color: var(--primary);
    }

    .brand-actions .subscribe-btn:hover {
        filter: brightness(1.06);
    }

    .chip-nav-wrap {
        padding: 8px 0 12px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }

    .chip-nav-wrap::-webkit-scrollbar {
        display: none;
    }

    .chip-nav {
        display: flex;
        gap: 8px;
        width: max-content;
        min-width: 100%;
    }

    .chip-nav a {
        flex: 0 0 auto;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 36px;
        padding: 0 16px;
        border-radius: 999px;
        font-size: 14px;
        font-weight: 600;
        color: #E5E7EB;
        border: 1px solid rgba(255, 255, 255, 0.22);
        background-color: transparent;
        transition: all 0.2s ease;
        white-space: nowrap;
    }

    .chip-nav a:hover {
        background-color: rgba(0, 224, 184, 0.16);
        border-color: rgba(0, 224, 184, 0.6);
        color: var(--accent);
    }

    .chip-nav a.active {
        background-color: var(--accent);
        border-color: var(--accent);
        color: var(--primary);
    }

    /* Category Page Header */
    .category-header {
        background: var(--primary) url('/assets/images/464ac970ecc67539.webp') center/cover no-repeat;
        padding: 56px 0 48px;
        position: relative;
    }

    .category-header::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(14, 17, 22, 0.92) 0%, rgba(14, 17, 22, 0.78) 100%);
        z-index: 1;
    }

    .category-header-inner {
        position: relative;
        z-index: 2;
    }

    .breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        color: #9CA3AF;
        margin-bottom: 20px;
    }

    .breadcrumb a {
        color: #D1D5DB;
        transition: color 0.2s ease;
    }

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

    .breadcrumb .separator {
        color: #6B7280;
    }

    .breadcrumb .current {
        color: var(--accent);
        font-weight: 600;
    }

    .category-header h1 {
        font-size: clamp(32px, 4vw, 56px);
        line-height: 1.15;
        font-weight: 900;
        letter-spacing: -1px;
        color: var(--white);
        margin-bottom: 16px;
    }

    .category-header h1 .highlight {
        color: var(--accent);
    }

    .category-header .category-desc {
        font-size: 17px;
        line-height: 1.9;
        color: #D1D5DB;
        max-width: 700px;
        margin-bottom: 24px;
    }

    .category-tag-row {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }

    .category-tag {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        padding: 4px 12px;
        border-radius: 999px;
        font-size: 12px;
        font-weight: 600;
        background: rgba(255, 255, 255, 0.08);
        color: #E5E7EB;
        border: 1px solid rgba(255, 255, 255, 0.14);
    }

    .category-tag .tag-dot {
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background-color: var(--accent);
    }

    /* Article List Section */
    .article-list-section {
        padding: var(--section-gap) 0;
        background-color: var(--white);
    }

    .section-heading {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 16px;
        margin-bottom: 36px;
        flex-wrap: wrap;
    }

    .section-heading h2 {
        font-size: 28px;
        font-weight: 900;
        letter-spacing: -0.5px;
        color: var(--primary);
        line-height: 1.3;
    }

    .section-heading .section-note {
        font-size: 14px;
        color: var(--light-muted);
        max-width: 360px;
        text-align: right;
    }

    .article-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }

    .article-card {
        background: var(--warm);
        border: 1px solid var(--line);
        border-radius: var(--radius-md);
        overflow: hidden;
        transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        display: flex;
        flex-direction: column;
    }

    .article-card:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
        border-color: rgba(0, 224, 184, 0.5);
    }

    .article-card:active {
        transform: translateY(0);
        box-shadow: var(--shadow-sm);
    }

    .article-card-image {
        width: 100%;
        aspect-ratio: 16 / 9;
        overflow: hidden;
        background: #E5E7EB;
        position: relative;
    }

    .article-card-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.3s ease;
    }

    .article-card:hover .article-card-image img {
        transform: scale(1.04);
    }

    .article-card-image .card-badge {
        position: absolute;
        top: 12px;
        left: 12px;
        background: var(--accent);
        color: var(--primary);
        font-size: 12px;
        font-weight: 700;
        padding: 4px 10px;
        border-radius: 999px;
        z-index: 2;
    }

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

    .article-card-meta {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 10px;
        font-size: 12px;
        color: var(--light-muted);
    }

    .article-card-meta .date-tag {
        color: var(--alert);
        font-weight: 600;
    }

    .article-card-meta .divider {
        width: 4px;
        height: 4px;
        border-radius: 50%;
        background: #D1D5DB;
    }

    .article-card h3 {
        font-size: 18px;
        font-weight: 800;
        letter-spacing: -0.3px;
        color: var(--primary);
        line-height: 1.5;
        margin-bottom: 10px;
    }

    .article-card h3 a {
        transition: color 0.2s ease;
    }

    .article-card h3 a:hover {
        color: #00B89A;
    }

    .article-card .article-excerpt {
        font-size: 14px;
        line-height: 1.8;
        color: var(--muted);
        margin-bottom: 16px;
        flex: 1;
    }

    .article-card .read-more {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 14px;
        font-weight: 700;
        color: var(--primary);
        transition: color 0.2s ease;
    }

    .article-card .read-more::after {
        content: "→";
        font-size: 16px;
        transition: transform 0.2s ease;
    }

    .article-card .read-more:hover {
        color: #00B89A;
    }

    .article-card .read-more:hover::after {
        transform: translateX(4px);
    }

    .view-more-row {
        display: flex;
        justify-content: center;
        margin-top: 40px;
    }

    .view-more-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        height: 46px;
        padding: 0 28px;
        border-radius: 999px;
        font-size: 15px;
        font-weight: 700;
        background: var(--primary);
        color: var(--white);
        border: 1px solid var(--primary);
        transition: all 0.25s ease;
    }

    .view-more-btn:hover {
        background: var(--accent);
        border-color: var(--accent);
        color: var(--primary);
        transform: translateY(-1px);
        box-shadow: var(--shadow-md);
    }

    .view-more-btn:focus-visible {
        outline: 3px solid var(--accent);
        outline-offset: 2px;
    }

    .view-more-btn .arrow {
        font-size: 18px;
        transition: transform 0.2s ease;
    }

    .view-more-btn:hover .arrow {
        transform: translateY(2px);
    }

    /* Category Entry Section */
    .category-entry-section {
        padding: var(--section-gap) 0;
        background-color: var(--warm);
    }

    .category-entry-section .section-heading h2 {
        color: var(--primary);
    }

    .category-chips {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }

    .category-chip-link {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        height: 42px;
        padding: 0 20px;
        border-radius: 999px;
        font-size: 15px;
        font-weight: 700;
        background: var(--white);
        color: var(--primary);
        border: 1px solid var(--line);
        transition: all 0.25s ease;
    }

    .category-chip-link:hover {
        border-color: var(--accent);
        background: var(--soft-accent);
        transform: translateY(-1px);
        box-shadow: var(--shadow-sm);
    }

    .category-chip-link .chip-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 24px;
        height: 24px;
        background: var(--primary);
        color: var(--accent);
        border-radius: 6px;
        font-size: 12px;
        font-weight: 900;
    }

    /* Topic Summary Section */
    .topic-summary-section {
        padding: var(--section-gap) 0;
        background-color: var(--white);
    }

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

    .topic-summary-text h2 {
        font-size: 30px;
        font-weight: 900;
        letter-spacing: -0.5px;
        color: var(--primary);
        line-height: 1.35;
        margin-bottom: 16px;
    }

    .topic-summary-text .summary-accent {
        color: #00B89A;
        position: relative;
    }

    .topic-summary-text .summary-accent::after {
        content: "";
        position: absolute;
        left: 0;
        right: 0;
        bottom: 2px;
        height: 6px;
        background: rgba(0, 224, 184, 0.2);
        border-radius: 999px;
        z-index: -1;
    }

    .topic-summary-text p {
        font-size: 16px;
        line-height: 1.9;
        color: var(--muted);
        margin-bottom: 14px;
    }

    .topic-summary-text .summary-points {
        list-style: none;
        padding: 0;
        margin-top: 16px;
    }

    .topic-summary-text .summary-points li {
        display: flex;
        align-items: flex-start;
        gap: 8px;
        font-size: 15px;
        line-height: 1.8;
        color: var(--muted);
        margin-bottom: 8px;
    }

    .topic-summary-text .summary-points li::before {
        content: "▸";
        color: var(--accent);
        font-weight: 700;
        flex-shrink: 0;
    }

    .topic-summary-visual {
        position: relative;
        border-radius: var(--radius-lg);
        overflow: hidden;
        aspect-ratio: 4 / 3;
        background: #E5E7EB;
    }

    .topic-summary-visual img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .topic-summary-visual .visual-overlay {
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(14, 17, 22, 0.1) 0%, rgba(14, 17, 22, 0.55) 100%);
        display: flex;
        align-items: flex-end;
        padding: 20px;
    }

    .visual-overlay-text {
        color: var(--white);
        font-size: 15px;
        font-weight: 700;
        line-height: 1.5;
    }

    /* Data Ranking Section */
    .data-ranking-section {
        padding: var(--section-gap) 0;
        background: var(--primary) url('/assets/images/a49e1729c9b2e37c.webp') center/cover no-repeat;
        position: relative;
    }

    .data-ranking-section::before {
        content: "";
        position: absolute;
        inset: 0;
        background: rgba(14, 17, 22, 0.9);
        z-index: 1;
    }

    .data-ranking-inner {
        position: relative;
        z-index: 2;
    }

    .data-ranking-section .section-heading h2 {
        color: var(--white);
    }

    .data-ranking-section .section-heading .section-note {
        color: #9CA3AF;
    }

    .ranking-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }

    .ranking-card {
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: var(--radius-md);
        padding: 20px;
        transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
    }

    .ranking-card:hover {
        background: rgba(255, 255, 255, 0.1);
        border-color: var(--accent);
        transform: translateY(-2px);
    }

    .ranking-card .rank-number {
        font-size: 14px;
        font-weight: 900;
        color: var(--accent);
        margin-bottom: 10px;
        letter-spacing: 0.04em;
    }

    .ranking-card .rank-value {
        font-size: 32px;
        font-weight: 900;
        color: var(--white);
        letter-spacing: -0.5px;
        line-height: 1.2;
        margin-bottom: 6px;
    }

    .ranking-card .rank-label {
        font-size: 13px;
        color: #9CA3AF;
        line-height: 1.6;
    }

    .ranking-card .rank-trend {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        font-size: 12px;
        font-weight: 700;
        color: var(--accent);
        margin-top: 8px;
    }

    .ranking-card .rank-trend.down {
        color: var(--alert);
    }

    /* FAQ Section */
    .faq-section {
        padding: var(--section-gap) 0;
        background: var(--white);
    }

    .faq-list {
        max-width: 850px;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .faq-item {
        background: var(--warm);
        border: 1px solid var(--line);
        border-radius: var(--radius-sm);
        overflow: hidden;
        transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .faq-item:hover {
        border-color: rgba(0, 224, 184, 0.4);
        box-shadow: var(--shadow-sm);
    }

    .faq-item[open] {
        border-color: rgba(0, 224, 184, 0.5);
        box-shadow: var(--shadow-sm);
    }

    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        padding: 18px 20px;
        cursor: pointer;
        font-size: 17px;
        font-weight: 700;
        color: var(--primary);
        user-select: none;
        list-style: none;
        transition: background 0.2s ease;
    }

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

    .faq-question:hover {
        background: #F7F6F2;
    }

    .faq-question .faq-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: var(--soft-accent);
        color: var(--primary);
        font-size: 18px;
        font-weight: 900;
        flex-shrink: 0;
        transition: transform 0.25s ease, background 0.25s ease;
    }

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

    .faq-answer {
        padding: 0 20px 18px;
        font-size: 15px;
        line-height: 1.85;
        color: var(--muted);
    }

    .faq-answer p {
        margin-top: 0;
    }

    /* Subscribe CTA Section */
    .subscribe-cta-section {
        padding: var(--section-gap) 0;
        background: var(--warm);
    }

    .subscribe-cta-box {
        background: var(--primary);
        border-radius: var(--radius-lg);
        padding: 48px 40px;
        display: grid;
        grid-template-columns: 1.2fr 0.8fr;
        gap: 32px;
        align-items: center;
        position: relative;
        overflow: hidden;
    }

    .subscribe-cta-box::before {
        content: "";
        position: absolute;
        top: -40%;
        right: -10%;
        width: 300px;
        height: 300px;
        background: radial-gradient(circle, rgba(0, 224, 184, 0.15) 0%, transparent 70%);
        border-radius: 50%;
        pointer-events: none;
    }

    .subscribe-cta-copy h2 {
        font-size: 28px;
        font-weight: 900;
        letter-spacing: -0.5px;
        color: var(--white);
        line-height: 1.35;
        margin-bottom: 12px;
    }

    .subscribe-cta-copy p {
        font-size: 15px;
        color: #D1D5DB;
        line-height: 1.8;
        margin-bottom: 0;
    }

    .subscribe-form {
        display: flex;
        gap: 10px;
        flex-wrap: wrap;
    }

    .subscribe-form input {
        flex: 1;
        min-width: 200px;
        height: 46px;
        padding: 0 16px;
        border-radius: var(--radius-sm);
        border: 1px solid rgba(255, 255, 255, 0.2);
        background: rgba(255, 255, 255, 0.08);
        color: var(--white);
        font-size: 15px;
        outline: none;
        transition: border-color 0.2s ease, background 0.2s ease;
    }

    .subscribe-form input::placeholder {
        color: #9CA3AF;
    }

    .subscribe-form input:focus {
        border-color: var(--accent);
        background: rgba(255, 255, 255, 0.12);
        outline: 3px solid rgba(0, 224, 184, 0.25);
        outline-offset: 2px;
    }

    .subscribe-form .btn {
        height: 46px;
        padding: 0 22px;
        border-radius: 999px;
        font-size: 15px;
        font-weight: 700;
        background: var(--accent);
        color: var(--primary);
        border: none;
        transition: filter 0.2s ease, transform 0.2s ease;
    }

    .subscribe-form .btn:hover {
        filter: brightness(1.08);
        transform: translateY(-1px);
    }

    .subscribe-form .btn:focus-visible {
        outline: 3px solid var(--accent);
        outline-offset: 2px;
    }

    /* Footer */
    .site-footer {
        background: var(--primary);
        padding: 48px 0 32px;
        color: #D1D5DB;
    }

    .footer-top {
        display: grid;
        grid-template-columns: 1.2fr 0.8fr;
        gap: 40px;
        margin-bottom: 36px;
    }

    .footer-brand .logo {
        font-size: 24px;
        margin-bottom: 14px;
    }

    .footer-brand p {
        font-size: 14px;
        line-height: 1.8;
        color: #9CA3AF;
        max-width: 360px;
    }

    .footer-links {
        display: flex;
        flex-wrap: wrap;
        gap: 10px 16px;
        align-content: flex-start;
    }

    .footer-links a {
        font-size: 14px;
        color: #D1D5DB;
        transition: color 0.2s ease;
    }

    .footer-links a:hover {
        color: var(--accent);
    }

    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        padding-top: 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        flex-wrap: wrap;
        font-size: 13px;
        color: #9CA3AF;
    }

    .footer-bottom a {
        color: #D1D5DB;
        transition: color 0.2s ease;
    }

    .footer-bottom a:hover {
        color: var(--accent);
    }

    /* Responsive */
    @media (max-width: 1024px) {
        .article-grid {
            grid-template-columns: repeat(2, 1fr);
        }

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

        .topic-summary-grid {
            grid-template-columns: 1fr;
            gap: 32px;
        }

        .subscribe-cta-box {
            grid-template-columns: 1fr;
            padding: 36px 28px;
        }
    }

    @media (max-width: 768px) {
        :root {
            --section-gap: 48px;
            --nav-height: 56px;
        }

        .brand-row {
            flex-wrap: wrap;
            height: auto;
            padding: 10px 0;
        }

        .logo {
            font-size: 20px;
        }

        .brand-actions {
            gap: 8px;
        }

        .brand-actions .search-btn,
        .brand-actions .subscribe-btn {
            height: 34px;
            padding: 0 10px;
            font-size: 13px;
        }

        .category-header {
            padding: 40px 0 36px;
        }

        .category-header h1 {
            font-size: 32px;
        }

        .section-heading h2 {
            font-size: 24px;
        }

        .section-heading .section-note {
            text-align: left;
        }

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

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

        .ranking-card .rank-value {
            font-size: 26px;
        }

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

        .footer-bottom {
            flex-direction: column;
            align-items: flex-start;
            gap: 8px;
        }
    }

    @media (max-width: 520px) {
        .brand-actions .search-btn {
            padding: 0 8px;
            font-size: 12px;
        }

        .brand-actions .subscribe-btn {
            display: none;
        }

        .logo {
            font-size: 18px;
        }

        .logo .logo-mark {
            width: 28px;
            height: 28px;
            font-size: 14px;
        }

        .category-header h1 {
            font-size: 26px;
        }

        .category-header .category-desc {
            font-size: 15px;
        }

        .breadcrumb {
            font-size: 12px;
            flex-wrap: wrap;
        }

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

        .subscribe-form {
            flex-direction: column;
        }

        .subscribe-form input {
            min-width: auto;
            width: 100%;
        }

        .subscribe-form .btn {
            width: 100%;
        }
    }

/* roulang page: category2 */
:root {
            --primary: #0E1116;
            --accent: #00E0B8;
            --warm: #F2F1EC;
            --alert: #FF5C28;
            --text: #1A1A1A;
            --muted: #4A4A4A;
            --light-muted: #6B7280;
            --line: #E7E5DE;
            --white: #ffffff;
            --soft-accent: rgba(0, 224, 184, 0.12);
            --soft-alert: rgba(255, 92, 40, 0.08);
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 12px 28px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.12);
            --radius-sm: 12px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --max-width: 1200px;
            --section-gap: 72px;
            --nav-height: 64px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
            background-color: var(--warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        input {
            outline: none;
            border: none;
        }

        .container {
            width: min(100% - 32px, var(--max-width));
            margin: 0 auto;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: var(--primary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            height: var(--nav-height);
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 22px;
            font-weight: 800;
            color: var(--white);
            letter-spacing: -0.5px;
            white-space: nowrap;
        }

        .logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background-color: var(--accent);
            color: var(--primary);
            font-size: 16px;
            font-weight: 900;
            border-radius: 8px;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .brand-actions .search-btn,
        .brand-actions .subscribe-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            height: 38px;
            padding: 0 14px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 700;
            border: 1px solid rgba(255, 255, 255, 0.18);
            background-color: transparent;
            color: var(--white);
            transition: all 0.25s ease;
        }

        .brand-actions .search-btn:hover,
        .brand-actions .subscribe-btn:hover {
            background-color: rgba(255, 255, 255, 0.08);
            border-color: var(--accent);
            color: var(--accent);
        }

        .brand-actions .subscribe-btn {
            background-color: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
        }

        .brand-actions .subscribe-btn:hover {
            filter: brightness(1.06);
            box-shadow: 0 4px 16px rgba(0, 224, 184, 0.3);
        }

        .chip-nav-wrap {
            padding: 8px 0 12px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .chip-nav-wrap::-webkit-scrollbar {
            display: none;
        }

        .chip-nav {
            display: flex;
            gap: 8px;
            width: max-content;
            min-width: 100%;
        }

        .chip-nav a {
            flex: 0 0 auto;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 36px;
            padding: 0 16px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: #E5E7EB;
            border: 1px solid rgba(255, 255, 255, 0.22);
            background-color: transparent;
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .chip-nav a:hover {
            background-color: rgba(0, 224, 184, 0.16);
            border-color: rgba(0, 224, 184, 0.6);
            color: var(--accent);
        }

        .chip-nav a.active {
            background-color: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
        }

        /* ===== 分类页头 ===== */
        .category-hero {
            background-color: var(--primary);
            padding: 56px 0 48px;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/22f595ab3846b09c.webp') center/cover no-repeat;
            opacity: 0.18;
            z-index: 0;
        }

        .category-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(14, 17, 22, 0.7) 0%, var(--primary) 100%);
            z-index: 0;
        }

        .category-hero .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: #9CA3AF;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: #D1D5DB;
            transition: color 0.2s ease;
        }

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

        .breadcrumb .separator {
            color: #6B7280;
            margin: 0 2px;
        }

        .breadcrumb .current {
            color: var(--accent);
            font-weight: 600;
        }

        .category-hero h1 {
            font-size: clamp(28px, 4vw, 48px);
            font-weight: 900;
            letter-spacing: -0.5px;
            color: var(--white);
            line-height: 1.2;
            margin-bottom: 14px;
        }

        .category-hero h1 .highlight {
            color: var(--accent);
        }

        .category-hero .subtitle {
            font-size: 17px;
            color: #D1D5DB;
            max-width: 680px;
            line-height: 1.7;
        }

        /* ===== 通用板块样式 ===== */
        section {
            padding: var(--section-gap) 0;
        }

        .section-header {
            margin-bottom: 32px;
        }

        .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            color: var(--alert);
            letter-spacing: 0.05em;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .section-kicker::before {
            content: "";
            width: 20px;
            height: 2px;
            background-color: var(--alert);
        }

        .section-title {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--text);
            line-height: 1.3;
        }

        .section-desc {
            font-size: 15px;
            color: var(--muted);
            margin-top: 8px;
            max-width: 600px;
            line-height: 1.7;
        }

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

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

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

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 0 22px;
            height: 46px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 700;
            transition: all 0.25s ease;
            white-space: nowrap;
        }

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

        .btn-primary:hover {
            filter: brightness(1.08);
            box-shadow: 0 4px 16px rgba(0, 224, 184, 0.3);
            transform: translateY(-1px);
        }

        .btn-primary:focus {
            outline: 3px solid rgba(0, 224, 184, 0.4);
            outline-offset: 2px;
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--text);
            border: 1px solid #CCCCCC;
        }

        .btn-secondary:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        /* ===== 文章卡片主体 ===== */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .article-card {
            background-color: var(--white);
            border-radius: var(--radius-md);
            border: 1px solid var(--line);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.28s ease;
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: rgba(0, 224, 184, 0.4);
        }

        .article-card:focus-within {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        .article-image {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background-color: #E5E7EB;
        }

        .article-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .article-card:hover .article-image img {
            transform: scale(1.04);
        }

        .article-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            display: inline-flex;
            align-items: center;
            padding: 4px 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            background-color: rgba(14, 17, 22, 0.75);
            color: var(--accent);
            letter-spacing: 0.03em;
        }

        .article-body {
            padding: 16px 18px 18px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }

        .article-date {
            font-size: 13px;
            color: var(--alert);
            font-weight: 600;
        }

        .article-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            letter-spacing: -0.3px;
        }

        .article-excerpt {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            flex: 1;
        }

        .article-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            transition: gap 0.2s ease, color 0.2s ease;
        }

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

        .read-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            background-color: var(--soft-accent);
            padding: 6px 14px;
            border-radius: 999px;
            transition: all 0.25s ease;
        }

        .read-more-btn:hover {
            background-color: var(--accent);
            color: var(--primary);
        }

        .view-more-wrap {
            margin-top: 32px;
            text-align: center;
        }

        .view-more-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 0 20px;
            height: 44px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 700;
            color: var(--primary);
            border: 1px solid #CCCCCC;
            background-color: var(--white);
            transition: all 0.25s ease;
        }

        .view-more-link:hover {
            border-color: var(--accent);
            color: var(--accent);
            box-shadow: var(--shadow-sm);
        }

        /* ===== 分类入口板块 ===== */
        .category-entry-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .category-entry-chips a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: var(--muted);
            background-color: var(--white);
            border: 1px solid var(--line);
            transition: all 0.25s ease;
        }

        .category-entry-chips a:hover {
            border-color: var(--accent);
            color: var(--accent);
            background-color: var(--soft-accent);
        }

        .category-entry-chips a.active-chip {
            background-color: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
        }

        /* ===== 专题摘要板块（支撑A） ===== */
        .topic-card {
            background-color: var(--white);
            border-radius: var(--radius-lg);
            padding: 36px;
            border: 1px solid var(--line);
            box-shadow: var(--shadow-sm);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: start;
        }

        .topic-summary-text {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text);
        }

        .topic-summary-text strong {
            color: var(--primary);
            font-weight: 800;
        }

        .topic-summary-text .accent-text {
            color: var(--accent);
            font-weight: 700;
        }

        .topic-points {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .topic-points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            color: var(--muted);
            line-height: 1.6;
        }

        .topic-points li::before {
            content: "";
            flex: 0 0 8px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent);
            margin-top: 10px;
        }

        /* ===== 数据榜单板块（支撑B） ===== */
        .data-rank-section {
            background-color: var(--primary);
            color: var(--white);
            border-radius: var(--radius-lg);
            padding: 36px;
            box-shadow: var(--shadow-lg);
        }

        .data-rank-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 24px;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 18px;
            border-radius: var(--radius-sm);
            background-color: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all 0.25s ease;
        }

        .rank-item:hover {
            background-color: rgba(255, 255, 255, 0.08);
            border-color: rgba(0, 224, 184, 0.4);
        }

        .rank-number {
            flex: 0 0 36px;
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            font-size: 16px;
            font-weight: 900;
            background-color: var(--accent);
            color: var(--primary);
        }

        .rank-number.top-three {
            background-color: var(--alert);
            color: var(--white);
        }

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

        .rank-name {
            font-size: 16px;
            font-weight: 700;
            color: var(--white);
        }

        .rank-detail {
            font-size: 13px;
            color: #9CA3AF;
            margin-top: 2px;
        }

        .rank-value {
            font-size: 20px;
            font-weight: 900;
            color: var(--accent);
            white-space: nowrap;
        }

        .rank-value .unit {
            font-size: 13px;
            font-weight: 600;
            color: #9CA3AF;
        }

        /* ===== FAQ（支撑C） ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
        }

        .faq-item {
            background-color: var(--white);
            border-radius: var(--radius-md);
            border: 1px solid var(--line);
            overflow: hidden;
            transition: all 0.25s ease;
        }

        .faq-item:hover {
            border-color: rgba(0, 224, 184, 0.4);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            background-color: var(--white);
            transition: background-color 0.25s ease;
            text-align: left;
        }

        .faq-question:hover {
            background-color: #F7F6F2;
        }

        .faq-icon {
            flex: 0 0 28px;
            width: 28px;
            height: 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background-color: var(--soft-accent);
            color: var(--accent);
            font-size: 20px;
            font-weight: 700;
            transition: transform 0.3s ease;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 250px;
            padding: 0 20px 20px;
        }

        .faq-answer p {
            font-size: 16px;
            color: var(--muted);
            line-height: 1.8;
        }

        /* ===== 工具入口板块 ===== */
        .tool-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .tool-card {
            background-color: var(--white);
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--line);
            box-shadow: var(--shadow-sm);
            transition: all 0.28s ease;
        }

        .tool-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: rgba(0, 224, 184, 0.4);
        }

        .tool-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background-color: var(--soft-accent);
            color: var(--primary);
            font-size: 24px;
            font-weight: 900;
            margin-bottom: 14px;
        }

        .tool-name {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }

        .tool-desc {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .tool-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            transition: gap 0.2s ease;
        }

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

        /* ===== 订阅CTA（支撑D） ===== */
        .subscribe-section {
            background-color: var(--primary);
            padding: 56px 0;
            position: relative;
            overflow: hidden;
        }

        .subscribe-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/0569e22798e5d2f2.webp') center/cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }

        .subscribe-inner {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .subscribe-copy {
            color: var(--white);
        }

        .subscribe-copy h2 {
            font-size: clamp(24px, 3vw, 36px);
            font-weight: 900;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .subscribe-copy p {
            font-size: 16px;
            color: #D1D5DB;
            line-height: 1.7;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
        }

        .subscribe-input {
            flex: 1;
            min-width: 220px;
            height: 48px;
            padding: 0 18px;
            border-radius: 12px;
            background-color: var(--white);
            border: 1px solid transparent;
            font-size: 15px;
            color: var(--text);
            transition: all 0.25s ease;
        }

        .subscribe-input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(0, 224, 184, 0.25);
        }

        .subscribe-input::placeholder {
            color: #9CA3AF;
        }

        .subscribe-btn-lg {
            height: 48px;
            padding: 0 24px;
            border-radius: 12px;
            background-color: var(--accent);
            color: var(--primary);
            font-size: 15px;
            font-weight: 800;
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .subscribe-btn-lg:hover {
            filter: brightness(1.08);
            box-shadow: 0 4px 16px rgba(0, 224, 184, 0.3);
        }

        /* ===== Footer ===== */
        .site-footer {
            background-color: var(--primary);
            color: #D1D5DB;
            padding: 48px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-top {
            display: flex;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }

        .footer-brand .logo {
            color: var(--white);
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 14px;
            color: #9CA3AF;
            max-width: 320px;
            line-height: 1.7;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 20px;
            align-items: center;
        }

        .footer-links a {
            font-size: 14px;
            color: #D1D5DB;
            transition: color 0.2s ease;
        }

        .footer-links a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
            color: #6B7280;
        }

        .footer-bottom a {
            color: #9CA3AF;
            transition: color 0.2s ease;
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .topic-card {
                padding: 28px;
                gap: 24px;
            }

            .data-rank-grid {
                grid-template-columns: 1fr;
            }

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

        @media (max-width: 768px) {
            :root {
                --section-gap: 48px;
                --nav-height: 56px;
            }

            .brand-row {
                flex-wrap: wrap;
                height: auto;
                padding: 12px 0;
                gap: 8px;
            }

            .brand-actions .search-btn,
            .brand-actions .subscribe-btn {
                height: 34px;
                padding: 0 12px;
                font-size: 13px;
            }

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

            .category-hero h1 {
                font-size: clamp(24px, 6vw, 36px);
            }

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

            .tool-cards {
                grid-template-columns: 1fr;
            }

            .topic-card {
                grid-template-columns: 1fr;
                padding: 24px;
                gap: 20px;
            }

            .data-rank-section {
                padding: 24px;
            }

            .rank-item {
                padding: 12px 14px;
                gap: 10px;
            }

            .rank-value {
                font-size: 16px;
            }

            .subscribe-inner {
                grid-template-columns: 1fr;
            }

            .subscribe-form {
                flex-direction: column;
                align-items: stretch;
            }

            .subscribe-input {
                min-width: auto;
                width: 100%;
            }

            .footer-top {
                flex-direction: column;
                gap: 24px;
            }

            .footer-links {
                gap: 10px 14px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --section-gap: 40px;
            }

            .logo {
                font-size: 19px;
            }

            .logo .logo-mark {
                width: 28px;
                height: 28px;
                font-size: 14px;
            }

            .brand-actions {
                gap: 6px;
            }

            .brand-actions .search-btn span,
            .brand-actions .subscribe-btn span {
                display: none;
            }

            .brand-actions .search-btn,
            .brand-actions .subscribe-btn {
                width: 36px;
                padding: 0;
                gap: 0;
            }

            .category-hero h1 {
                font-size: 22px;
            }

            .section-title {
                font-size: 20px;
            }

            .article-card {
                border-radius: var(--radius-sm);
            }

            .article-body {
                padding: 14px 14px 16px;
            }

            .article-title {
                font-size: 16px;
            }

            .data-rank-section {
                padding: 18px;
            }

            .rank-number {
                flex: 0 0 30px;
                width: 30px;
                height: 30px;
                font-size: 14px;
                border-radius: 8px;
            }

            .rank-name {
                font-size: 14px;
            }

            .rank-value {
                font-size: 15px;
            }

            .faq-question {
                font-size: 15px;
                padding: 14px 16px;
            }

            .faq-answer p {
                font-size: 14px;
            }

            .tool-card {
                padding: 18px;
            }

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

/* roulang page: category3 */
:root {
            --primary: #0E1116;
            --accent: #00E0B8;
            --warm: #F2F1EC;
            --alert: #FF5C28;
            --text: #1A1A1A;
            --muted: #4A4A4A;
            --light-muted: #6B7280;
            --line: #E7E5DE;
            --white: #ffffff;
            --soft-accent: rgba(0, 224, 184, 0.12);
            --soft-alert: rgba(255, 92, 40, 0.10);
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 12px 28px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 18px 44px rgba(0, 0, 0, 0.12);
            --radius-sm: 12px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --max-width: 1200px;
            --section-gap: 72px;
            --nav-height: 64px;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
            background-color: var(--warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
        }

        .container {
            width: min(100% - 32px, var(--max-width));
            margin: 0 auto;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: var(--primary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            height: var(--nav-height);
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 22px;
            font-weight: 800;
            color: var(--white);
            letter-spacing: -0.5px;
            white-space: nowrap;
        }

        .logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background-color: var(--accent);
            color: var(--primary);
            font-size: 16px;
            font-weight: 900;
            border-radius: 8px;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .brand-actions .search-btn,
        .brand-actions .subscribe-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            height: 38px;
            padding: 0 14px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 700;
            border: 1px solid rgba(255, 255, 255, 0.18);
            background-color: transparent;
            color: var(--white);
            transition: all 0.2s ease;
        }

        .brand-actions .search-btn:hover,
        .brand-actions .subscribe-btn:hover {
            background-color: rgba(255, 255, 255, 0.08);
            border-color: var(--accent);
            color: var(--accent);
        }

        .brand-actions .subscribe-btn {
            background-color: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
        }

        .brand-actions .subscribe-btn:hover {
            filter: brightness(1.06);
        }

        .chip-nav-wrap {
            padding: 8px 0 12px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .chip-nav-wrap::-webkit-scrollbar {
            display: none;
        }

        .chip-nav {
            display: flex;
            gap: 8px;
            width: max-content;
            min-width: 100%;
        }

        .chip-nav a {
            flex: 0 0 auto;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 36px;
            padding: 0 16px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: #E5E7EB;
            border: 1px solid rgba(255, 255, 255, 0.22);
            background-color: transparent;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .chip-nav a:hover {
            background-color: rgba(0, 224, 184, 0.16);
            border-color: rgba(0, 224, 184, 0.6);
            color: var(--accent);
        }

        .chip-nav a.active {
            background-color: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
        }

        /* Category page header */
        .category-header {
            position: relative;
            background: var(--primary) url('/assets/images/25902f2b83ed24dc.webp') center/cover no-repeat;
            padding: 56px 0 48px;
            overflow: hidden;
        }

        .category-header::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(14, 17, 22, 0.94) 0%, rgba(14, 17, 22, 0.80) 45%, rgba(14, 17, 22, 0.62) 100%);
            z-index: 1;
        }

        .category-header-inner {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: #B7BCC4;
            margin-bottom: 18px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: #B7BCC4;
            transition: color 0.2s ease;
        }

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

        .breadcrumb .sep {
            color: #6B7280;
            user-select: none;
        }

        .breadcrumb .current {
            color: var(--accent);
            font-weight: 600;
        }

        .category-header h1 {
            font-size: clamp(30px, 4vw, 48px);
            font-weight: 900;
            letter-spacing: -1px;
            color: var(--white);
            line-height: 1.2;
            margin-bottom: 14px;
        }

        .category-header h1 .highlight {
            color: var(--accent);
            position: relative;
        }

        .category-header .category-subtitle {
            font-size: 17px;
            line-height: 1.9;
            color: #D1D5DB;
            max-width: 720px;
        }

        /* Section base */
        section {
            padding: var(--section-gap) 0;
        }

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

        .section-header {
            margin-bottom: 32px;
        }

        .section-header h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 10px;
        }

        .section-header .section-subtitle {
            font-size: 16px;
            color: var(--light-muted);
            line-height: 1.8;
            max-width: 680px;
        }

        /* Article card grid */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .article-card {
            background: var(--white);
            border-radius: var(--radius-md);
            border: 1px solid var(--line);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: rgba(0, 224, 184, 0.45);
        }

        .article-card:focus-within {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

        .article-card .card-img {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background-color: #1C2128;
        }

        .article-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .article-card:hover .card-img img {
            transform: scale(1.02);
        }

        .article-card .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            display: inline-flex;
            align-items: center;
            height: 26px;
            padding: 0 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            background-color: var(--primary);
            color: var(--accent);
            letter-spacing: 0.02em;
        }

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

        .article-card .card-title {
            font-size: 18px;
            font-weight: 800;
            letter-spacing: -0.2px;
            line-height: 1.45;
            color: var(--text);
            margin-bottom: 10px;
        }

        .article-card .card-title a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

        .article-card .card-title a:hover {
            color: var(--accent);
        }

        .article-card .card-summary {
            font-size: 14px;
            line-height: 1.8;
            color: var(--muted);
            margin-bottom: 16px;
            flex: 1;
        }

        .article-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            flex-wrap: wrap;
        }

        .article-card .card-date {
            font-size: 13px;
            font-weight: 600;
            color: var(--alert);
        }

        .article-card .card-label {
            font-size: 12px;
            color: var(--light-muted);
            background: var(--warm);
            padding: 3px 10px;
            border-radius: 999px;
            font-weight: 600;
        }

        /* Show more */
        .show-more-wrap {
            display: flex;
            justify-content: center;
            margin-top: 32px;
        }

        .show-more-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 46px;
            padding: 0 28px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 700;
            background-color: var(--white);
            color: var(--text);
            border: 1px solid #CCCCCC;
            transition: all 0.2s ease;
        }

        .show-more-btn:hover {
            border-color: var(--accent);
            background-color: var(--soft-accent);
            color: var(--primary);
        }

        .show-more-btn:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

        /* Category entry chips */
        .category-entry {
            background-color: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--line);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
        }

        .category-entry h3 {
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text);
        }

        .category-entry-chips {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .category-entry-chips a {
            display: inline-flex;
            align-items: center;
            height: 38px;
            padding: 0 16px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: var(--muted);
            border: 1px solid var(--line);
            background-color: var(--white);
            transition: all 0.2s ease;
        }

        .category-entry-chips a:hover {
            border-color: var(--accent);
            background-color: var(--soft-accent);
            color: var(--primary);
        }

        .category-entry-chips a.current {
            background-color: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
            font-weight: 700;
        }

        /* Key points */
        .key-point-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .key-point-card {
            background: var(--white);
            border-radius: var(--radius-md);
            border: 1px solid var(--line);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }

        .key-point-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .key-point-card .kp-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 999px;
            background-color: var(--soft-accent);
            color: var(--primary);
            font-weight: 800;
            font-size: 14px;
            margin-bottom: 14px;
        }

        .key-point-card h4 {
            font-size: 17px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 8px;
            letter-spacing: -0.2px;
        }

        .key-point-card p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--muted);
        }

        /* Data board */
        .data-board {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-md);
            overflow: hidden;
        }

        .data-board h3 {
            font-size: 20px;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 24px;
            letter-spacing: -0.3px;
        }

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

        .data-bar-item .bar-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 14px;
            font-weight: 600;
            color: #D1D5DB;
            margin-bottom: 8px;
        }

        .data-bar-item .bar-label span:last-child {
            color: var(--accent);
            font-weight: 800;
        }

        .data-bar-item .bar-track {
            width: 100%;
            height: 8px;
            background-color: rgba(255, 255, 255, 0.10);
            border-radius: 999px;
            overflow: hidden;
        }

        .data-bar-item .bar-fill {
            height: 100%;
            border-radius: 999px;
            background: linear-gradient(90deg, var(--accent) 0%, #52FFD0 100%);
            transition: width 0.6s ease;
        }

        .data-bar-item .bar-fill.orange {
            background: linear-gradient(90deg, var(--alert) 0%, #FF8A5C 100%);
        }

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

        .faq-item {
            background: var(--white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--line);
            overflow: hidden;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .faq-item:hover {
            border-color: rgba(0, 224, 184, 0.4);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            text-align: left;
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            transition: background-color 0.2s ease;
            cursor: pointer;
        }

        .faq-question:hover {
            background-color: #F7F6F2;
        }

        .faq-question .faq-icon {
            flex: 0 0 auto;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 999px;
            background-color: var(--soft-accent);
            color: var(--primary);
            font-size: 18px;
            font-weight: 700;
            transition: transform 0.25s ease;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 20px;
        }

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

        .faq-answer p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--muted);
        }

        /* Subscribe CTA */
        .subscribe-panel {
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--line);
            padding: 36px 32px;
            box-shadow: var(--shadow-sm);
            text-align: center;
        }

        .subscribe-panel h3 {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.4px;
            color: var(--text);
            margin-bottom: 10px;
        }

        .subscribe-panel p {
            font-size: 15px;
            color: var(--light-muted);
            margin-bottom: 20px;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            max-width: 520px;
            margin: 0 auto;
            flex-wrap: wrap;
        }

        .subscribe-form input[type="email"] {
            flex: 1;
            min-width: 220px;
            height: 48px;
            padding: 0 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--line);
            background: var(--white);
            color: var(--text);
            font-size: 15px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
            outline: none;
        }

        .subscribe-form input[type="email"]:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(0, 224, 184, 0.15);
        }

        .subscribe-form .btn-primary {
            height: 48px;
            padding: 0 24px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 700;
            background-color: var(--accent);
            color: var(--primary);
            border: none;
            transition: all 0.2s ease;
        }

        .subscribe-form .btn-primary:hover {
            filter: brightness(1.06);
        }

        .subscribe-form .btn-primary:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

        /* Footer */
        .site-footer {
            background-color: var(--primary);
            padding: 48px 0 24px;
            color: #D1D5DB;
        }

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

        .footer-brand .logo {
            font-size: 22px;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 12px;
            display: inline-flex;
        }

        .footer-brand .logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background-color: var(--accent);
            color: var(--primary);
            font-size: 16px;
            font-weight: 900;
            border-radius: 8px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #9CA3AF;
            max-width: 360px;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-content: flex-start;
        }

        .footer-links a {
            display: inline-flex;
            align-items: center;
            height: 34px;
            padding: 0 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            color: #D1D5DB;
            border: 1px solid rgba(255, 255, 255, 0.18);
            transition: all 0.2s ease;
        }

        .footer-links a:hover {
            background-color: rgba(0, 224, 184, 0.16);
            border-color: rgba(0, 224, 184, 0.5);
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: #9CA3AF;
        }

        .footer-bottom a {
            color: #D1D5DB;
            transition: color 0.2s ease;
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

        @media (max-width: 768px) {
            :root {
                --section-gap: 48px;
                --nav-height: 56px;
            }

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

            .key-point-grid {
                grid-template-columns: 1fr;
            }

            .category-header {
                padding: 40px 0 36px;
            }

            .category-header h1 {
                font-size: 28px;
            }

            .brand-row {
                height: 56px;
            }

            .brand-actions .search-btn {
                padding: 0 10px;
                font-size: 13px;
            }

            .subscribe-form {
                flex-direction: column;
            }

            .subscribe-form input[type="email"] {
                min-width: 100%;
            }

            .subscribe-form .btn-primary {
                width: 100%;
            }

            .data-board {
                padding: 24px 18px;
            }

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

        @media (max-width: 520px) {
            :root {
                --section-gap: 40px;
            }

            .article-card .card-title {
                font-size: 16px;
            }

            .article-card .card-summary {
                font-size: 13px;
            }

            .category-header h1 {
                font-size: 24px;
            }

            .category-header .category-subtitle {
                font-size: 15px;
            }

            .brand-actions .search-btn {
                display: none;
            }

            .brand-actions .subscribe-btn {
                padding: 0 12px;
                font-size: 13px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #0E1116;
            --accent: #00E0B8;
            --warm: #F2F1EC;
            --alert: #FF5C28;
            --text: #1A1A1A;
            --muted: #4A4A4A;
            --light-muted: #6B7280;
            --line: #E7E5DE;
            --white: #ffffff;
            --soft-accent: rgba(0, 224, 184, 0.12);
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 12px 28px rgba(0, 0, 0, 0.08);
            --radius-sm: 12px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --max-width: 1200px;
            --section-gap: 72px;
            --nav-height: 64px;
        }
        @media (max-width: 768px) {
            :root {
                --section-gap: 48px;
                --nav-height: 56px;
            }
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
            background-color: var(--warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            background: none;
            border: none;
        }
        .container {
            width: min(100% - 32px, var(--max-width));
            margin: 0 auto;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: var(--primary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            height: var(--nav-height);
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 22px;
            font-weight: 800;
            color: var(--white);
            letter-spacing: -0.5px;
            white-space: nowrap;
        }
        .logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background-color: var(--accent);
            color: var(--primary);
            font-size: 16px;
            font-weight: 900;
            border-radius: 8px;
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .brand-actions .search-btn,
        .brand-actions .subscribe-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            height: 38px;
            padding: 0 14px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 700;
            border: 1px solid rgba(255, 255, 255, 0.18);
            background-color: transparent;
            color: var(--white);
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .brand-actions .search-btn:hover,
        .brand-actions .subscribe-btn:hover {
            background-color: rgba(255, 255, 255, 0.08);
            border-color: var(--accent);
            color: var(--accent);
        }
        .brand-actions .subscribe-btn {
            background-color: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
        }
        .brand-actions .subscribe-btn:hover {
            filter: brightness(1.06);
            color: var(--primary);
        }
        .chip-nav-wrap {
            padding: 8px 0 12px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .chip-nav-wrap::-webkit-scrollbar {
            display: none;
        }
        .chip-nav {
            display: flex;
            gap: 8px;
            width: max-content;
            min-width: 100%;
        }
        .chip-nav a {
            flex: 0 0 auto;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 36px;
            padding: 0 16px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: #E5E7EB;
            border: 1px solid rgba(255, 255, 255, 0.22);
            background-color: transparent;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .chip-nav a:hover {
            background-color: rgba(0, 224, 184, 0.16);
            border-color: rgba(0, 224, 184, 0.6);
            color: var(--accent);
        }
        .chip-nav a.active {
            background-color: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
        }
        .category-hero {
            position: relative;
            background: var(--primary) url('/assets/images/41ff6b296b4ffb0a.jpg') center/cover no-repeat;
            padding: 72px 0 56px;
            overflow: hidden;
        }
        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(14, 17, 22, 0.93) 0%, rgba(14, 17, 22, 0.78) 55%, rgba(14, 17, 22, 0.55) 100%);
            z-index: 1;
        }
        .category-hero-inner {
            position: relative;
            z-index: 2;
            width: min(100% - 32px, var(--max-width));
            margin: 0 auto;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: #9CA3AF;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: #9CA3AF;
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .separator {
            color: #4B5563;
            user-select: none;
        }
        .breadcrumb .current {
            color: var(--accent);
            font-weight: 700;
        }
        .category-hero h1 {
            font-size: clamp(32px, 4.5vw, 52px);
            line-height: 1.15;
            font-weight: 900;
            letter-spacing: -1px;
            color: var(--white);
            margin-bottom: 16px;
        }
        .category-hero h1 .highlight {
            color: var(--accent);
        }
        .category-hero .hero-subtitle {
            font-size: 18px;
            line-height: 1.8;
            color: #D1D5DB;
            max-width: 680px;
            margin-bottom: 0;
        }
        .section {
            padding: var(--section-gap) 0;
        }
        .section-alt {
            background-color: var(--white);
        }
        .section-title {
            font-size: clamp(26px, 3vw, 36px);
            font-weight: 900;
            letter-spacing: -0.5px;
            color: var(--text);
            margin-bottom: 16px;
            line-height: 1.2;
        }
        .section-subtitle {
            font-size: 17px;
            color: var(--muted);
            margin-bottom: 40px;
            max-width: 720px;
            line-height: 1.8;
        }
        .section-head {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 32px;
        }
        .section-head .section-title {
            margin-bottom: 0;
        }
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .article-card {
            background: var(--white);
            border-radius: var(--radius-md);
            border: 1px solid var(--line);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }
        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(0, 224, 184, 0.4);
        }
        .article-card:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }
        .article-card .card-image {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #E5E5E5;
        }
        .article-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .article-card:hover .card-image img {
            transform: scale(1.04);
        }
        .article-card .card-image .badge-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: var(--primary);
            font-size: 12px;
            font-weight: 800;
            padding: 4px 10px;
            border-radius: 999px;
            letter-spacing: 0.02em;
        }
        .article-card .card-body {
            padding: 20px 18px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .article-card .card-body h3 {
            font-size: 18px;
            font-weight: 800;
            line-height: 1.4;
            color: var(--text);
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }
        .article-card .card-body p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .article-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--light-muted);
            border-top: 1px solid var(--line);
            padding-top: 14px;
            margin-top: auto;
        }
        .article-card .card-meta .date {
            color: var(--alert);
            font-weight: 700;
        }
        .article-card .card-meta .read-more {
            color: var(--accent);
            font-weight: 700;
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color 0.2s ease;
        }
        .article-card .card-meta .read-more:hover {
            color: #00b897;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 0 22px;
            height: 46px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 15px;
            transition: all 0.2s ease;
            white-space: nowrap;
            border: 1px solid transparent;
        }
        .btn-primary {
            background-color: var(--accent);
            color: var(--primary);
            border-color: var(--accent);
        }
        .btn-primary:hover {
            filter: brightness(1.06);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(0, 224, 184, 0.3);
        }
        .btn-primary:focus {
            outline: 3px solid rgba(0, 224, 184, 0.4);
            outline-offset: 2px;
        }
        .btn-secondary {
            background-color: var(--white);
            color: var(--text);
            border-color: #CCCCCC;
        }
        .btn-secondary:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-1px);
        }
        .btn-secondary:focus {
            outline: 3px solid rgba(0, 224, 184, 0.4);
            outline-offset: 2px;
        }
        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: var(--white);
        }
        .btn-outline-light:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(0, 224, 184, 0.1);
        }
        .entry-chips {
            display: flex;
            gap: 8px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding-bottom: 4px;
        }
        .entry-chips::-webkit-scrollbar {
            display: none;
        }
        .entry-chips a {
            flex: 0 0 auto;
            display: inline-flex;
            align-items: center;
            height: 36px;
            padding: 0 16px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: var(--muted);
            border: 1px solid var(--line);
            background: var(--white);
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .entry-chips a:hover {
            border-color: var(--accent);
            color: #00b897;
            background: var(--soft-accent);
        }
        .entry-chips a.active {
            background: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
        }
        .info-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .info-card {
            background: var(--white);
            border-radius: var(--radius-md);
            border: 1px solid var(--line);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }
        .info-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: rgba(0, 224, 184, 0.4);
        }
        .info-card .info-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: var(--soft-accent);
            border-radius: 12px;
            font-size: 20px;
            margin-bottom: 14px;
        }
        .info-card h3 {
            font-size: 17px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }
        .info-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }
        .rank-list {
            background: var(--white);
            border-radius: var(--radius-md);
            border: 1px solid var(--line);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 18px 22px;
            border-bottom: 1px solid var(--line);
            transition: background 0.2s ease;
        }
        .rank-item:last-child {
            border-bottom: none;
        }
        .rank-item:hover {
            background: #FAFAF7;
        }
        .rank-number {
            flex: 0 0 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: var(--accent);
            font-weight: 900;
            font-size: 16px;
            border-radius: 10px;
        }
        .rank-item:nth-child(1) .rank-number {
            background: var(--alert);
            color: var(--white);
        }
        .rank-item:nth-child(2) .rank-number {
            background: #FF8A5C;
            color: var(--white);
        }
        .rank-item:nth-child(3) .rank-number {
            background: #FFB38A;
            color: var(--primary);
        }
        .rank-info {
            flex: 1;
            min-width: 0;
        }
        .rank-info h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 2px;
        }
        .rank-info .rank-desc {
            font-size: 13px;
            color: var(--light-muted);
            line-height: 1.5;
        }
        .rank-score {
            flex: 0 0 auto;
            text-align: right;
        }
        .rank-score .score-value {
            font-size: 22px;
            font-weight: 900;
            color: var(--accent);
            letter-spacing: -0.5px;
        }
        .rank-score .score-label {
            font-size: 12px;
            color: var(--light-muted);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--white);
            border-radius: var(--radius-md);
            border: 1px solid var(--line);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .faq-item:hover {
            border-color: rgba(0, 224, 184, 0.4);
        }
        .faq-item.open {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            cursor: pointer;
            user-select: none;
            transition: background 0.2s ease;
            background: transparent;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            background: #F7F6F2;
        }
        .faq-icon {
            flex: 0 0 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--soft-accent);
            border-radius: 50%;
            font-size: 18px;
            font-weight: 700;
            color: var(--accent);
            transition: transform 0.25s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 22px 20px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.8;
        }
        .subscribe-panel {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
            position: relative;
            overflow: hidden;
        }
        .subscribe-panel::before {
            content: "";
            position: absolute;
            top: -40%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 224, 184, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .subscribe-panel h3 {
            font-size: 28px;
            font-weight: 900;
            color: var(--white);
            letter-spacing: -0.5px;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .subscribe-panel p {
            font-size: 16px;
            color: #B0B8C4;
            line-height: 1.8;
            position: relative;
            z-index: 1;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            position: relative;
            z-index: 1;
        }
        .subscribe-form input {
            flex: 1;
            height: 46px;
            padding: 0 18px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.06);
            color: var(--white);
            font-size: 15px;
            transition: border-color 0.2s ease, background 0.2s ease;
            outline: none;
        }
        .subscribe-form input::placeholder {
            color: #6B7280;
        }
        .subscribe-form input:focus {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.1);
        }
        .subscribe-form .btn-primary {
            height: 46px;
            flex: 0 0 auto;
        }
        .load-more-wrap {
            text-align: center;
            margin-top: 32px;
        }
        .load-more-wrap .btn {
            min-width: 180px;
        }
        .site-footer {
            background-color: var(--primary);
            color: #B0B8C4;
            padding: 56px 0 28px;
            margin-top: 0;
        }
        .footer-top {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            justify-content: space-between;
            margin-bottom: 36px;
        }
        .footer-brand {
            max-width: 360px;
        }
        .footer-brand .logo {
            font-size: 22px;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #9CA3AF;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 16px;
            align-content: flex-start;
        }
        .footer-links a {
            font-size: 14px;
            color: #9CA3AF;
            transition: color 0.2s ease;
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            font-size: 13px;
            color: #6B7280;
        }
        .footer-bottom a {
            color: #9CA3AF;
            transition: color 0.2s ease;
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        @media (max-width: 1024px) {
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .info-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .subscribe-panel {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 36px 28px;
            }
        }
        @media (max-width: 768px) {
            .brand-actions .search-btn {
                display: none;
            }
            .article-grid {
                grid-template-columns: 1fr;
            }
            .info-grid {
                grid-template-columns: 1fr;
            }
            .category-hero {
                padding: 48px 0 40px;
            }
            .category-hero h1 {
                font-size: 30px;
            }
            .category-hero .hero-subtitle {
                font-size: 16px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form input {
                width: 100%;
            }
            .section-title {
                font-size: 24px;
            }
            .footer-top {
                flex-direction: column;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .rank-item {
                padding: 14px 16px;
                gap: 12px;
            }
        }
        @media (max-width: 520px) {
            .brand-row {
                gap: 8px;
            }
            .logo {
                font-size: 19px;
            }
            .logo .logo-mark {
                width: 28px;
                height: 28px;
                font-size: 14px;
            }
            .brand-actions .subscribe-btn {
                height: 34px;
                padding: 0 10px;
                font-size: 13px;
            }
            .chip-nav a {
                height: 32px;
                padding: 0 12px;
                font-size: 13px;
            }
            .article-card .card-body h3 {
                font-size: 16px;
            }
            .subscribe-panel h3 {
                font-size: 22px;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #0E1116;
            --accent: #00E0B8;
            --warm: #F2F1EC;
            --alert: #FF5C28;
            --text: #1A1A1A;
            --muted: #4A4A4A;
            --light-muted: #6B7280;
            --line: #E7E5DE;
            --white: #ffffff;
            --soft-accent: rgba(0, 224, 184, 0.12);
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 12px 28px rgba(0, 0, 0, 0.08);
            --radius-sm: 12px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --max-width: 1200px;
            --section-gap: 72px;
            --nav-height: 64px;
        }
        @media (max-width: 768px) {
            :root {
                --section-gap: 48px;
                --nav-height: 56px;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
            background-color: var(--warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.22s ease;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
        }
        .container {
            width: min(100% - 32px, var(--max-width));
            margin: 0 auto;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: var(--primary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            height: var(--nav-height);
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 22px;
            font-weight: 800;
            color: var(--white);
            letter-spacing: -0.5px;
            white-space: nowrap;
        }
        .logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background-color: var(--accent);
            color: var(--primary);
            font-size: 16px;
            font-weight: 900;
            border-radius: 8px;
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .brand-actions .search-btn,
        .brand-actions .subscribe-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            height: 38px;
            padding: 0 14px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 700;
            border: 1px solid rgba(255, 255, 255, 0.18);
            background-color: transparent;
            color: var(--white);
            transition: all 0.2s ease;
        }
        .brand-actions .search-btn:hover,
        .brand-actions .subscribe-btn:hover {
            background-color: rgba(255, 255, 255, 0.08);
            border-color: var(--accent);
            color: var(--accent);
        }
        .brand-actions .subscribe-btn {
            background-color: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
        }
        .brand-actions .subscribe-btn:hover {
            filter: brightness(1.06);
        }
        .chip-nav-wrap {
            padding: 8px 0 12px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .chip-nav-wrap::-webkit-scrollbar {
            display: none;
        }
        .chip-nav {
            display: flex;
            gap: 8px;
            width: max-content;
            min-width: 100%;
        }
        .chip-nav a {
            flex: 0 0 auto;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 36px;
            padding: 0 16px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: #E5E7EB;
            border: 1px solid rgba(255, 255, 255, 0.22);
            background-color: transparent;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .chip-nav a:hover {
            background-color: rgba(0, 224, 184, 0.16);
            border-color: rgba(0, 224, 184, 0.6);
            color: var(--accent);
        }
        .chip-nav a.active {
            background-color: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
        }
        main {
            display: block;
        }
        section {
            padding: var(--section-gap) 0;
        }
        .category-header {
            background-color: var(--white);
            border-bottom: 1px solid var(--line);
            padding: 40px 0 32px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--light-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--muted);
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .sep {
            color: #CCCCCC;
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 600;
        }
        .category-header h1 {
            font-size: clamp(28px, 4vw, 48px);
            font-weight: 900;
            letter-spacing: -0.8px;
            color: var(--text);
            margin: 0 0 12px;
            line-height: 1.2;
        }
        .category-header .lead {
            font-size: 18px;
            line-height: 1.8;
            color: var(--muted);
            max-width: 720px;
            margin: 0;
        }
        .article-list-section {
            background-color: var(--warm);
            padding-top: 40px;
            padding-bottom: 20px;
        }
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .article-card {
            background-color: var(--white);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
        }
        .article-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: rgba(0, 224, 184, 0.5);
        }
        .article-card:focus-within {
            outline: 3px solid rgba(0, 224, 184, 0.5);
            outline-offset: 2px;
        }
        .article-card .img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background-color: #e5e5e0;
        }
        .article-card .img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .article-card:hover .img-wrap img {
            transform: scale(1.04);
        }
        .article-card .card-body {
            padding: 16px 18px 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .article-card .meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--light-muted);
            margin-bottom: 10px;
        }
        .article-card .tag {
            background-color: var(--soft-accent);
            color: var(--text);
            font-weight: 700;
            font-size: 12px;
            padding: 2px 10px;
            border-radius: 999px;
            letter-spacing: 0.02em;
            display: inline-block;
        }
        .article-card .date {
            color: var(--alert);
            font-weight: 700;
            font-size: 13px;
        }
        .article-card h3 {
            font-size: 19px;
            font-weight: 800;
            line-height: 1.4;
            color: var(--text);
            margin: 0 0 8px;
            letter-spacing: -0.3px;
        }
        .article-card .excerpt {
            font-size: 14px;
            line-height: 1.75;
            color: var(--muted);
            margin: 0 0 14px;
            flex: 1;
        }
        .article-card .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 700;
            color: var(--text);
            transition: color 0.2s ease;
        }
        .article-card .read-more:hover {
            color: var(--accent);
        }
        .article-card .read-more::after {
            content: "→";
            transition: transform 0.2s ease;
        }
        .article-card .read-more:hover::after {
            transform: translateX(3px);
        }
        .view-more-wrap {
            text-align: center;
            padding: 28px 0 8px;
        }
        .view-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 44px;
            padding: 0 28px;
            border-radius: 999px;
            background-color: var(--white);
            border: 1px solid var(--line);
            color: var(--text);
            font-weight: 700;
            font-size: 15px;
            transition: all 0.2s ease;
            box-shadow: var(--shadow-sm);
        }
        .view-more-btn:hover {
            border-color: var(--accent);
            color: var(--accent);
            box-shadow: var(--shadow-md);
        }
        .view-more-btn:focus {
            outline: 3px solid rgba(0, 224, 184, 0.5);
            outline-offset: 2px;
        }
        .category-entry-section {
            background-color: var(--white);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
            padding: 36px 0;
        }
        .category-entry-section h2 {
            font-size: 22px;
            font-weight: 800;
            color: var(--text);
            margin: 0 0 16px;
            letter-spacing: -0.3px;
        }
        .entry-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .entry-chips a {
            display: inline-flex;
            align-items: center;
            height: 38px;
            padding: 0 18px;
            border-radius: 999px;
            background-color: var(--warm);
            border: 1px solid var(--line);
            color: var(--muted);
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s ease;
        }
        .entry-chips a:hover {
            background-color: var(--soft-accent);
            border-color: var(--accent);
            color: var(--text);
        }
        .entry-chips a.active {
            background-color: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
        }
        .insight-section {
            background-color: var(--warm);
        }
        .insight-section .grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .insight-section img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            aspect-ratio: 16 / 10;
            object-fit: cover;
            width: 100%;
        }
        .insight-section h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 900;
            color: var(--text);
            margin: 0 0 14px;
            letter-spacing: -0.5px;
            line-height: 1.3;
        }
        .insight-section p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--muted);
            margin: 0 0 12px;
        }
        .insight-section .point-list {
            list-style: none;
            padding: 0;
            margin: 16px 0 0;
        }
        .insight-section .point-list li {
            position: relative;
            padding-left: 24px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--muted);
            margin-bottom: 8px;
        }
        .insight-section .point-list li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 11px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: var(--accent);
        }
        .data-section {
            background-color: var(--primary);
            color: var(--white);
        }
        .data-section h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 900;
            color: var(--white);
            margin: 0 0 24px;
            letter-spacing: -0.5px;
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .data-item {
            background-color: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-md);
            padding: 20px 18px;
            transition: background-color 0.2s ease, border-color 0.2s ease;
        }
        .data-item:hover {
            background-color: rgba(0, 224, 184, 0.1);
            border-color: rgba(0, 224, 184, 0.4);
        }
        .data-item .num {
            font-size: 32px;
            font-weight: 900;
            color: var(--accent);
            letter-spacing: -1px;
            margin-bottom: 6px;
            line-height: 1.1;
        }
        .data-item .label {
            font-size: 14px;
            color: #D1D5DB;
            line-height: 1.6;
        }
        .faq-section {
            background-color: var(--white);
        }
        .faq-section h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 900;
            color: var(--text);
            margin: 0 0 24px;
            letter-spacing: -0.5px;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            border: 1px solid var(--line);
            border-radius: var(--radius-sm);
            background-color: var(--white);
            overflow: hidden;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .faq-item:hover {
            border-color: rgba(0, 224, 184, 0.4);
            box-shadow: var(--shadow-sm);
        }
        .faq-item[open] {
            border-color: rgba(0, 224, 184, 0.5);
            box-shadow: var(--shadow-sm);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            cursor: pointer;
            list-style: none;
            transition: background-color 0.2s ease;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            background-color: #F7F6F2;
        }
        .faq-item summary .icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background-color: var(--soft-accent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 16px;
            color: var(--text);
            transition: transform 0.25s ease;
        }
        .faq-item[open] summary .icon {
            transform: rotate(45deg);
            background-color: var(--accent);
            color: var(--primary);
        }
        .faq-answer {
            padding: 0 20px 18px;
            font-size: 15px;
            line-height: 1.85;
            color: var(--muted);
        }
        .subscribe-cta-section {
            background-color: var(--warm);
            padding: 48px 0;
        }
        .subscribe-cta-box {
            background-color: var(--primary);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 32px;
            align-items: center;
            position: relative;
            overflow: hidden;
        }
        .subscribe-cta-box::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/4d9ba1240fb89e0b.webp') center/cover no-repeat;
            opacity: 0.18;
            z-index: 1;
        }
        .subscribe-cta-box > * {
            position: relative;
            z-index: 2;
        }
        .subscribe-cta-box h2 {
            font-size: clamp(22px, 3vw, 30px);
            font-weight: 900;
            color: var(--white);
            margin: 0 0 10px;
            letter-spacing: -0.5px;
        }
        .subscribe-cta-box p {
            font-size: 15px;
            line-height: 1.8;
            color: #D1D5DB;
            margin: 0;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .subscribe-form input {
            flex: 1;
            min-width: 200px;
            height: 46px;
            padding: 0 16px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--white);
            font-size: 15px;
            transition: border-color 0.2s ease;
        }
        .subscribe-form input::placeholder {
            color: #9CA3AF;
        }
        .subscribe-form input:focus {
            outline: none;
            border-color: var(--accent);
        }
        .subscribe-form button {
            height: 46px;
            padding: 0 24px;
            border-radius: 999px;
            background-color: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: 15px;
            transition: filter 0.2s ease, transform 0.2s ease;
        }
        .subscribe-form button:hover {
            filter: brightness(1.06);
        }
        .subscribe-form button:focus {
            outline: 3px solid rgba(0, 224, 184, 0.5);
            outline-offset: 2px;
        }
        .site-footer {
            background-color: var(--primary);
            color: #D1D5DB;
            padding: 48px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-top {
            display: flex;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #9CA3AF;
            max-width: 360px;
            margin: 0;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: flex-start;
        }
        .footer-links a {
            font-size: 14px;
            color: #D1D5DB;
            transition: color 0.2s ease;
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 13px;
            color: #9CA3AF;
        }
        .footer-bottom a {
            color: #9CA3AF;
            transition: color 0.2s ease;
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        @media (max-width: 1024px) {
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .insight-section .grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .subscribe-cta-box {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 640px) {
            .article-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-item .num {
                font-size: 24px;
            }
            .brand-actions .search-btn {
                padding: 0 10px;
                font-size: 13px;
            }
            .brand-actions .subscribe-btn {
                padding: 0 10px;
                font-size: 13px;
            }
            .category-header {
                padding: 24px 0 20px;
            }
            .category-header h1 {
                font-size: 28px;
            }
            .category-header .lead {
                font-size: 16px;
            }
            .footer-top {
                flex-direction: column;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .subscribe-cta-box {
                padding: 28px 20px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form input {
                min-width: 100%;
            }
            .faq-item summary {
                font-size: 15px;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px 14px;
                font-size: 14px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #0E1116;
            --accent: #00E0B8;
            --warm: #F2F1EC;
            --alert: #FF5C28;
            --text: #1A1A1A;
            --muted: #4A4A4A;
            --light-muted: #6B7280;
            --line: #E7E5DE;
            --white: #ffffff;
            --soft-accent: rgba(0, 224, 184, 0.12);
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 12px 28px rgba(0, 0, 0, 0.08);
            --radius-sm: 12px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --max-width: 1200px;
            --section-gap: 56px;
            --nav-height: 56px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
            background-color: var(--warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
        }
        button, input {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
        }
        .container {
            width: min(100% - 32px, var(--max-width));
            margin: 0 auto;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: var(--primary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            height: var(--nav-height);
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 22px;
            font-weight: 800;
            color: var(--white);
            letter-spacing: -0.5px;
            white-space: nowrap;
        }
        .logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background-color: var(--accent);
            color: var(--primary);
            font-size: 16px;
            font-weight: 900;
            border-radius: 8px;
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .brand-actions .search-btn,
        .brand-actions .subscribe-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            height: 38px;
            padding: 0 14px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 700;
            border: 1px solid rgba(255, 255, 255, 0.18);
            background-color: transparent;
            color: var(--white);
            transition: all 0.2s ease;
        }
        .brand-actions .search-btn:hover,
        .brand-actions .subscribe-btn:hover {
            background-color: rgba(255, 255, 255, 0.08);
            border-color: var(--accent);
            color: var(--accent);
        }
        .brand-actions .subscribe-btn {
            background-color: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
        }
        .brand-actions .subscribe-btn:hover {
            filter: brightness(1.06);
        }
        .chip-nav-wrap {
            padding: 8px 0 12px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .chip-nav-wrap::-webkit-scrollbar {
            display: none;
        }
        .chip-nav {
            display: flex;
            gap: 8px;
            width: max-content;
            min-width: 100%;
        }
        .chip-nav a {
            flex: 0 0 auto;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 36px;
            padding: 0 16px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: #E5E7EB;
            border: 1px solid rgba(255, 255, 255, 0.22);
            background-color: transparent;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .chip-nav a:hover {
            background-color: rgba(0, 224, 184, 0.16);
            border-color: rgba(0, 224, 184, 0.6);
            color: var(--accent);
        }
        .chip-nav a.active {
            background-color: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
        }
        .page-header {
            position: relative;
            background: var(--primary);
            padding: 56px 0 48px;
            overflow: hidden;
        }
        .page-header::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(125deg, rgba(0,224,184,0.06) 0%, transparent 45%);
            pointer-events: none;
        }
        .page-header .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: #9CA3AF;
            margin-bottom: 16px;
        }
        .breadcrumb-custom a {
            color: #D1D5DB;
            transition: color 0.2s ease;
        }
        .breadcrumb-custom a:hover {
            color: var(--accent);
        }
        .breadcrumb-custom .sep {
            color: #4B5563;
        }
        .breadcrumb-custom .current {
            color: var(--accent);
            font-weight: 600;
        }
        .page-header h1 {
            font-size: clamp(28px, 4vw, 44px);
            font-weight: 900;
            letter-spacing: -0.8px;
            color: var(--white);
            margin-bottom: 14px;
            line-height: 1.25;
        }
        .page-header h1 .highlight {
            color: var(--accent);
        }
        .page-header .subtitle {
            font-size: 17px;
            line-height: 1.85;
            color: #D1D5DB;
            max-width: 720px;
        }
        .section {
            padding: var(--section-gap) 0;
        }
        .section-alt {
            background-color: var(--white);
        }
        .section-title {
            font-size: clamp(22px, 2.8vw, 32px);
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--text);
            margin-bottom: 8px;
        }
        .section-lead {
            font-size: 16px;
            color: var(--muted);
            margin-bottom: 32px;
            max-width: 680px;
            line-height: 1.8;
        }
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .article-card {
            background: var(--white);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: rgba(0, 224, 184, 0.5);
        }
        .article-card .card-img {
            display: block;
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            background-color: #E5E7EB;
        }
        .article-card .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-card .card-tag {
            display: inline-flex;
            align-items: center;
            height: 24px;
            padding: 0 10px;
            background: var(--soft-accent);
            color: #00856D;
            font-size: 12px;
            font-weight: 700;
            border-radius: 999px;
            margin-bottom: 10px;
            width: fit-content;
        }
        .article-card .card-title {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text);
            margin-bottom: 8px;
        }
        .article-card .card-desc {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }
        .article-card .card-date {
            font-size: 13px;
            color: var(--light-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-card .card-date::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--alert);
        }
        .view-more-wrap {
            text-align: center;
            margin-top: 32px;
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 24px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 15px;
            color: var(--muted);
            background: var(--white);
            border: 1px solid #CCCCCC;
            transition: all 0.2s ease;
        }
        .btn-ghost:hover {
            border-color: var(--accent);
            color: var(--text);
            box-shadow: var(--shadow-sm);
        }
        .category-entry-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .category-entry-chips a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 36px;
            padding: 0 16px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: var(--muted);
            background: var(--white);
            border: 1px solid var(--line);
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .category-entry-chips a:hover {
            background: var(--soft-accent);
            border-color: var(--accent);
            color: var(--text);
        }
        .insight-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .insight-card {
            background: var(--white);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }
        .insight-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .insight-card .num {
            font-size: 14px;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: 0.05em;
            margin-bottom: 10px;
            display: block;
        }
        .insight-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        .insight-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .data-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .data-item {
            background: var(--primary);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            color: var(--white);
            text-align: center;
            transition: transform 0.25s ease;
        }
        .data-item:hover {
            transform: translateY(-2px);
        }
        .data-item .value {
            font-size: 32px;
            font-weight: 900;
            color: var(--accent);
            letter-spacing: -0.5px;
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .data-item .label {
            font-size: 13px;
            color: #D1D5DB;
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--line);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .faq-item:hover {
            border-color: rgba(0, 224, 184, 0.4);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            transition: background-color 0.2s ease;
        }
        .faq-question:hover {
            background-color: #F7F6F2;
        }
        .faq-question .icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--soft-accent);
            color: #00856D;
            font-size: 18px;
            font-weight: 700;
            transition: transform 0.25s ease;
        }
        .faq-item.open .faq-question .icon {
            transform: rotate(45deg);
            background: var(--accent);
            color: var(--primary);
        }
        .faq-answer {
            display: none;
            padding: 0 20px 18px;
            font-size: 15px;
            color: var(--muted);
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .subscribe-box {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            text-align: center;
            color: var(--white);
        }
        .subscribe-box h2 {
            font-size: clamp(22px, 2.6vw, 30px);
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 10px;
            color: var(--white);
        }
        .subscribe-box p {
            font-size: 15px;
            color: #D1D5DB;
            margin-bottom: 24px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .subscribe-form input[type="email"] {
            flex: 1;
            min-width: 240px;
            height: 46px;
            padding: 0 18px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.08);
            color: var(--white);
            font-size: 15px;
            outline: none;
            transition: border-color 0.2s ease, background-color 0.2s ease;
        }
        .subscribe-form input[type="email"]::placeholder {
            color: #9CA3AF;
        }
        .subscribe-form input[type="email"]:focus {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.12);
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 46px;
            padding: 0 24px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 15px;
            color: var(--primary);
            background: var(--accent);
            border: none;
            transition: all 0.2s ease;
        }
        .btn-accent:hover {
            filter: brightness(1.08);
            box-shadow: 0 6px 18px rgba(0, 224, 184, 0.3);
        }
        .btn-accent:focus {
            outline: 3px solid rgba(0, 224, 184, 0.4);
            outline-offset: 2px;
        }
        .site-footer {
            background: var(--primary);
            padding: 48px 0 28px;
            color: #D1D5DB;
        }
        .footer-top {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            justify-content: space-between;
            align-items: flex-start;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            font-size: 20px;
            margin-bottom: 10px;
        }
        .footer-brand p {
            font-size: 14px;
            color: #9CA3AF;
            max-width: 340px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .footer-links a {
            display: inline-flex;
            align-items: center;
            height: 32px;
            padding: 0 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            color: #D1D5DB;
            border: 1px solid rgba(255, 255, 255, 0.15);
            transition: all 0.2s ease;
        }
        .footer-links a:hover {
            background: rgba(0, 224, 184, 0.14);
            border-color: rgba(0, 224, 184, 0.5);
            color: var(--accent);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            font-size: 13px;
            color: #9CA3AF;
        }
        .footer-bottom a {
            color: #D1D5DB;
            transition: color 0.2s ease;
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        @media (max-width: 1024px) {
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .insight-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .article-grid {
                grid-template-columns: 1fr;
            }
            .insight-list {
                grid-template-columns: 1fr;
            }
            .data-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .page-header {
                padding: 40px 0 36px;
            }
            .brand-row {
                gap: 8px;
            }
            .brand-actions .search-btn {
                padding: 0 10px;
                font-size: 13px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form input[type="email"] {
                min-width: 100%;
            }
            .footer-top {
                flex-direction: column;
                gap: 20px;
            }
        }
        @media (max-width: 520px) {
            .data-row {
                grid-template-columns: 1fr;
            }
            .brand-actions .search-btn span {
                display: none;
            }
            .brand-actions .subscribe-btn {
                font-size: 13px;
                padding: 0 12px;
            }
            .page-header h1 {
                font-size: 26px;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}