/* roulang page: index */
:root {
      --bg: #0d0f12;
      --bg-2: #14171c;
      --panel: #191d23;
      --panel-2: #20252d;
      --text: #f5f7fa;
      --muted: #aeb6c2;
      --soft: #7f8896;
      --line: rgba(255,255,255,.12);
      --line-strong: rgba(255,255,255,.2);
      --brand: #ffcf3f;
      --brand-2: #ff7a45;
      --accent: #49e6b1;
      --danger: #ff5d6c;
      --shadow: 0 18px 50px rgba(0,0,0,.38);
      --shadow-soft: 0 10px 28px rgba(0,0,0,.25);
      --radius-lg: 28px;
      --radius-md: 18px;
      --radius-sm: 12px;
      --container: 1180px;
      --bottom-cta-h: 78px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 15% 10%, rgba(255,207,63,.14), transparent 28%),
        radial-gradient(circle at 85% 16%, rgba(73,230,177,.1), transparent 26%),
        linear-gradient(180deg, #0b0d10 0%, #11141a 45%, #0d0f12 100%);
      line-height: 1.7;
      padding-bottom: var(--bottom-cta-h);
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease;
    }

    a:hover {
      color: var(--brand);
    }

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

    button,
    input {
      font: inherit;
    }

    button:focus-visible,
    a:focus-visible,
    input:focus-visible {
      outline: 3px solid rgba(255,207,63,.38);
      outline-offset: 3px;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(13,15,18,.9);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--line);
      box-shadow: 0 10px 28px rgba(0,0,0,.18);
    }

    .top-nav {
      min-height: 76px;
      display: flex;
      align-items: center;
      gap: 20px;
      justify-content: space-between;
      padding: 14px 0;
    }

    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 900;
      letter-spacing: 0;
      color: var(--text);
      white-space: nowrap;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      color: #111;
      background: linear-gradient(135deg, var(--brand), var(--accent));
      box-shadow: 0 8px 22px rgba(255,207,63,.22);
      font-weight: 900;
    }

    .brand-name {
      font-size: 18px;
      line-height: 1.15;
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      flex: 1;
      justify-content: flex-end;
    }

    .search-wrap {
      position: relative;
      width: min(420px, 42vw);
    }

    .search-wrap input {
      width: 100%;
      height: 46px;
      border: 1px solid var(--line);
      border-radius: 999px;
      background: rgba(255,255,255,.06);
      color: var(--text);
      padding: 0 48px 0 18px;
    }

    .search-wrap input::placeholder {
      color: var(--soft);
    }

    .search-wrap button {
      position: absolute;
      right: 5px;
      top: 5px;
      width: 36px;
      height: 36px;
      border: 0;
      border-radius: 50%;
      background: var(--brand);
      color: #141414;
      font-weight: 900;
      line-height: 1;
    }

    .channel-row {
      border-top: 1px solid rgba(255,255,255,.07);
      overflow-x: auto;
      scrollbar-width: thin;
      scrollbar-color: rgba(255,207,63,.35) transparent;
    }

    .channel-tabs {
      display: flex;
      gap: 10px;
      padding: 12px 0;
      min-width: max-content;
    }

    .channel-tabs a {
      display: inline-flex;
      align-items: center;
      min-height: 38px;
      padding: 8px 16px;
      border-radius: 999px;
      border: 1px solid var(--line);
      color: var(--muted);
      background: rgba(255,255,255,.04);
      font-weight: 700;
    }

    .channel-tabs a:hover,
    .channel-tabs a.active {
      color: #111;
      background: var(--brand);
      border-color: var(--brand);
      transform: translateY(-1px);
    }

    .btn-main,
    .btn-soft,
    .btn-darkline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 48px;
      padding: 12px 22px;
      border-radius: 999px;
      border: 1px solid transparent;
      font-weight: 900;
      line-height: 1.2;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
      cursor: pointer;
    }

    .btn-main {
      background: linear-gradient(135deg, var(--brand), var(--brand-2));
      color: #111;
      box-shadow: 0 14px 30px rgba(255,122,69,.24);
    }

    .btn-main:hover {
      color: #111;
      transform: translateY(-2px);
      box-shadow: 0 20px 44px rgba(255,122,69,.32);
      filter: brightness(1.05);
    }

    .btn-soft {
      background: rgba(255,255,255,.08);
      color: var(--text);
      border-color: var(--line);
    }

    .btn-soft:hover {
      background: rgba(255,255,255,.13);
      color: var(--text);
      transform: translateY(-2px);
      border-color: var(--line-strong);
    }

    .btn-darkline {
      background: rgba(0,0,0,.18);
      color: var(--text);
      border-color: rgba(255,255,255,.18);
    }

    .btn-darkline:hover {
      color: var(--brand);
      border-color: rgba(255,207,63,.55);
      transform: translateY(-2px);
    }

    main {
      overflow: hidden;
    }

    section {
      padding: 76px 0;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 28px;
    }

    .section-kicker {
      color: var(--brand);
      font-weight: 900;
      margin-bottom: 8px;
      font-size: 14px;
    }

    .section-title {
      font-size: clamp(28px, 4vw, 44px);
      line-height: 1.15;
      margin: 0;
      font-weight: 950;
      letter-spacing: 0;
    }

    .section-desc {
      color: var(--muted);
      max-width: 640px;
      margin: 12px 0 0;
    }

    .hero {
      padding: 34px 0 54px;
    }

    .hero-stage {
      min-height: 620px;
      border-radius: var(--radius-lg);
      position: relative;
      overflow: hidden;
      border: 1px solid var(--line-strong);
      box-shadow: var(--shadow);
      background:
        linear-gradient(90deg, rgba(9,10,12,.94) 0%, rgba(9,10,12,.74) 45%, rgba(9,10,12,.24) 100%),
        url("https://images.unsplash.com/photo-1516321318423-f06f85e504b3?auto=format&fit=crop&w=1800&q=80") center/cover no-repeat;
    }

    .hero-stage::after {
      content: "";
      position: absolute;
      inset: auto 0 0;
      height: 36%;
      background: linear-gradient(180deg, transparent, rgba(13,15,18,.92));
      pointer-events: none;
    }

    .hero-overlay-tabs {
      position: absolute;
      top: 22px;
      left: 22px;
      right: 22px;
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
      z-index: 2;
    }

    .hero-overlay-tabs span,
    .tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 7px 12px;
      border-radius: 999px;
      background: rgba(255,255,255,.1);
      border: 1px solid rgba(255,255,255,.16);
      color: var(--muted);
      font-size: 13px;
      font-weight: 800;
    }

    .hero-overlay-tabs span.active {
      background: var(--brand);
      color: #111;
      border-color: var(--brand);
    }

    .hero-content {
      position: absolute;
      left: clamp(22px, 5vw, 64px);
      right: clamp(22px, 5vw, 64px);
      bottom: 48px;
      z-index: 2;
      max-width: 850px;
    }

    .hero h1 {
      font-size: clamp(38px, 7vw, 76px);
      line-height: 1.02;
      margin: 0 0 18px;
      font-weight: 950;
      letter-spacing: 0;
    }

    .hero p {
      max-width: 760px;
      color: #d9dee7;
      font-size: 18px;
      margin: 0 0 26px;
    }

    .hero-cta {
      display: flex;
      align-items: center;
      gap: 14px;
      flex-wrap: wrap;
      margin-bottom: 24px;
    }

    .hero-points {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      max-width: 760px;
    }

    .point {
      border: 1px solid rgba(255,255,255,.15);
      background: rgba(0,0,0,.28);
      border-radius: 16px;
      padding: 13px 15px;
    }

    .point strong {
      display: block;
      color: var(--brand);
      font-size: 22px;
      line-height: 1.1;
    }

    .point span {
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
    }

    .trust-strip {
      padding: 18px 0 54px;
    }

    .trust-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 12px;
    }

    .trust-item {
      background: var(--panel);
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 18px;
      box-shadow: var(--shadow-soft);
    }

    .trust-item b {
      display: block;
      font-size: 20px;
      color: var(--text);
    }

    .trust-item span {
      color: var(--muted);
      font-size: 14px;
    }

    .split-section {
      background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.01));
      border-block: 1px solid rgba(255,255,255,.07);
    }

    .split-layout {
      display: grid;
      grid-template-columns: .95fr 1.05fr;
      gap: 24px;
      align-items: stretch;
    }

    .signal-panel,
    .card-box,
    .leader-card,
    .topic-card,
    .feature-card,
    .related-card,
    .faq-item,
    .news-panel,
    .progress-panel {
      background: linear-gradient(180deg, rgba(255,255,255,.075), rgba(255,255,255,.035));
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-soft);
    }

    .signal-panel {
      padding: 28px;
      min-height: 100%;
    }

    .signal-list {
      display: grid;
      gap: 14px;
      margin-top: 24px;
    }

    .signal-row {
      display: grid;
      grid-template-columns: 42px 1fr;
      gap: 14px;
      padding: 16px;
      border-radius: 16px;
      background: rgba(0,0,0,.18);
      border: 1px solid rgba(255,255,255,.08);
    }

    .signal-row i {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      background: rgba(255,207,63,.14);
      color: var(--brand);
      font-style: normal;
      font-weight: 950;
    }

    .signal-row b {
      display: block;
      margin-bottom: 3px;
    }

    .signal-row span {
      color: var(--muted);
      font-size: 14px;
    }

    .invite-board {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
    }

    .card-box {
      padding: 20px;
      min-height: 150px;
    }

    .card-box .num {
      font-size: 34px;
      font-weight: 950;
      color: var(--accent);
      line-height: 1;
      margin-bottom: 10px;
    }

    .card-box p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .progress-grid {
      display: grid;
      grid-template-columns: 1fr .85fr;
      gap: 24px;
      align-items: start;
    }

    .progress-panel {
      padding: 26px;
    }

    .progress-line {
      height: 14px;
      border-radius: 999px;
      background: rgba(255,255,255,.1);
      overflow: hidden;
      margin: 20px 0 14px;
    }

    .progress-line span {
      display: block;
      width: 72%;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--brand), var(--accent));
    }

    .task-list {
      display: grid;
      gap: 12px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .task-list li {
      display: flex;
      justify-content: space-between;
      gap: 14px;
      padding: 14px 0;
      border-bottom: 1px solid rgba(255,255,255,.08);
      color: var(--muted);
    }

    .task-list li:last-child {
      border-bottom: 0;
    }

    .task-list b {
      color: var(--text);
    }

    .leaderboard {
      background: #101217;
      border-block: 1px solid rgba(255,255,255,.07);
    }

    .leader-list {
      display: grid;
      gap: 12px;
    }

    .leader-card {
      display: grid;
      grid-template-columns: 70px 1fr auto;
      gap: 18px;
      align-items: center;
      padding: 18px 20px;
    }

    .rank {
      width: 50px;
      height: 50px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      background: rgba(255,207,63,.13);
      color: var(--brand);
      font-size: 22px;
      font-weight: 950;
    }

    .leader-card h3 {
      font-size: 20px;
      margin: 0 0 4px;
      font-weight: 900;
    }

    .leader-card p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .heat {
      color: var(--accent);
      font-weight: 900;
      white-space: nowrap;
    }

    .news-wrap {
      display: grid;
      grid-template-columns: 1.25fr .75fr;
      gap: 24px;
    }

    .news-panel {
      padding: 24px;
    }

    .news-list {
      margin: 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 0;
    }

    .news-list li {
      display: grid;
      grid-template-columns: 108px 1fr auto;
      gap: 16px;
      align-items: center;
      padding: 16px 0;
      border-bottom: 1px solid rgba(255,255,255,.09);
    }

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

    .news-date {
      color: var(--brand);
      font-weight: 900;
      font-size: 14px;
    }

    .news-list a {
      font-weight: 850;
      color: var(--text);
    }

    .news-list small {
      color: var(--soft);
      font-weight: 800;
    }

    .calendar-mini {
      display: grid;
      gap: 12px;
    }

    .calendar-item {
      display: grid;
      grid-template-columns: 54px 1fr;
      gap: 14px;
      align-items: center;
      padding: 14px;
      background: rgba(0,0,0,.2);
      border: 1px solid rgba(255,255,255,.08);
      border-radius: 16px;
    }

    .calendar-item time {
      display: grid;
      place-items: center;
      width: 54px;
      height: 54px;
      border-radius: 16px;
      background: rgba(73,230,177,.14);
      color: var(--accent);
      font-weight: 950;
    }

    .calendar-item b {
      display: block;
      margin-bottom: 2px;
    }

    .calendar-item span {
      color: var(--muted);
      font-size: 14px;
    }

    .topic-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr .9fr;
      gap: 16px;
    }

    .topic-card {
      min-height: 210px;
      padding: 24px;
      position: relative;
      overflow: hidden;
    }

    .topic-card.large {
      min-height: 360px;
      background:
        linear-gradient(180deg, rgba(255,207,63,.12), rgba(255,255,255,.04)),
        var(--panel);
    }

    .topic-card h3 {
      font-size: 24px;
      margin: 14px 0 10px;
      font-weight: 950;
    }

    .topic-card p {
      color: var(--muted);
      margin: 0 0 18px;
    }

    .topic-card:hover,
    .feature-card:hover,
    .related-card:hover,
    .leader-card:hover {
      transform: translateY(-4px);
      border-color: rgba(255,207,63,.42);
      box-shadow: 0 20px 46px rgba(0,0,0,.32);
    }

    .feature-mix {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 18px;
    }

    .feature-card {
      padding: 22px;
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
    }

    .feature-card.primary {
      min-height: 360px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      background:
        linear-gradient(135deg, rgba(255,122,69,.16), rgba(73,230,177,.08)),
        var(--panel);
    }

    .feature-card h3 {
      font-size: 25px;
      margin: 14px 0 10px;
      font-weight: 950;
    }

    .feature-card p {
      color: var(--muted);
      margin: 0 0 18px;
    }

    .feature-side {
      display: grid;
      gap: 18px;
    }

    .related-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 14px;
    }

    .related-card {
      padding: 18px;
      min-height: 170px;
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
    }

    .related-card h3 {
      font-size: 18px;
      margin: 12px 0 8px;
      font-weight: 900;
    }

    .related-card p {
      color: var(--muted);
      font-size: 14px;
      margin: 0;
    }

    .quote-wall {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 16px;
    }

    .quote {
      padding: 22px;
      border-radius: var(--radius-md);
      border: 1px solid var(--line);
      background: rgba(255,255,255,.055);
      min-height: 180px;
    }

    .quote p {
      color: #d9dee7;
      margin: 0 0 18px;
    }

    .avatar-line {
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--muted);
      font-weight: 800;
      font-size: 14px;
    }

    .avatar {
      width: 34px;
      height: 34px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--brand), var(--accent));
    }

    .faq-grid {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 24px;
      align-items: start;
    }

    .faq-list {
      display: grid;
      gap: 12px;
    }

    .faq-item {
      padding: 20px;
    }

    .faq-item h3 {
      font-size: 18px;
      margin: 0 0 8px;
      font-weight: 900;
    }

    .faq-item p {
      color: var(--muted);
      margin: 0;
    }

    .final-cta {
      padding: 72px 0 92px;
    }

    .cta-panel {
      position: relative;
      overflow: hidden;
      border-radius: var(--radius-lg);
      border: 1px solid rgba(255,207,63,.34);
      background:
        linear-gradient(135deg, rgba(255,207,63,.2), rgba(73,230,177,.1)),
        var(--panel);
      padding: clamp(28px, 5vw, 56px);
      box-shadow: var(--shadow);
    }

    .cta-panel h2 {
      font-size: clamp(30px, 5vw, 54px);
      font-weight: 950;
      line-height: 1.12;
      margin: 0 0 14px;
    }

    .cta-panel p {
      color: #dfe4ec;
      max-width: 760px;
      margin: 0 0 24px;
    }

    .site-footer {
      background: #090a0c;
      border-top: 1px solid var(--line);
      padding: 42px 0 96px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr .8fr;
      gap: 24px;
      align-items: start;
    }

    .footer-title {
      font-size: 20px;
      font-weight: 950;
      margin-bottom: 10px;
    }

    .footer-desc,
    .copyright {
      color: var(--muted);
      margin: 0;
      font-size: 14px;
    }

    .footer-links {
      display: grid;
      gap: 8px;
    }

    .footer-links a {
      color: var(--muted);
      font-weight: 750;
    }

    .footer-links a:hover {
      color: var(--brand);
      transform: translateX(2px);
    }

    .bottom-cta {
      position: fixed;
      left: 0;
      right: 0;
      bottom: 0;
      z-index: 1100;
      min-height: var(--bottom-cta-h);
      border-top: 1px solid rgba(255,255,255,.13);
      background: rgba(10,11,13,.92);
      backdrop-filter: blur(18px);
      box-shadow: 0 -12px 30px rgba(0,0,0,.28);
    }

    .bottom-inner {
      min-height: var(--bottom-cta-h);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .bottom-copy b {
      display: block;
      line-height: 1.2;
    }

    .bottom-copy span {
      color: var(--muted);
      font-size: 13px;
    }

    .bottom-actions {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      justify-content: flex-end;
    }

    @media (max-width: 1024px) {
      .search-wrap {
        width: min(360px, 36vw);
      }

      .hero-stage {
        min-height: 590px;
      }

      .split-layout,
      .progress-grid,
      .news-wrap,
      .feature-mix,
      .faq-grid {
        grid-template-columns: 1fr;
      }

      .topic-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .topic-card.large {
        grid-column: span 2;
        min-height: 280px;
      }

      .related-grid,
      .trust-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @media (max-width: 768px) {
      body {
        padding-bottom: 116px;
      }

      .top-nav {
        align-items: stretch;
        flex-direction: column;
        gap: 12px;
      }

      .nav-actions {
        width: 100%;
        justify-content: stretch;
      }

      .search-wrap {
        width: 100%;
      }

      .nav-actions .btn-main {
        display: none;
      }

      .channel-row {
        position: sticky;
        top: 0;
        background: rgba(13,15,18,.94);
      }

      section {
        padding: 54px 0;
      }

      .hero {
        padding-top: 20px;
      }

      .hero-stage {
        min-height: 670px;
        border-radius: 22px;
        background:
          linear-gradient(180deg, rgba(9,10,12,.86) 0%, rgba(9,10,12,.66) 42%, rgba(9,10,12,.96) 100%),
          url("https://images.unsplash.com/photo-1516321318423-f06f85e504b3?auto=format&fit=crop&w=1200&q=80") center/cover no-repeat;
      }

      .hero-content {
        bottom: 30px;
      }

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

      .hero-points,
      .invite-board,
      .trust-grid,
      .quote-wall,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .section-head {
        align-items: start;
        flex-direction: column;
      }

      .leader-card {
        grid-template-columns: 52px 1fr;
      }

      .leader-card .heat {
        grid-column: 2;
      }

      .news-list li {
        grid-template-columns: 1fr;
        gap: 6px;
      }

      .topic-grid,
      .related-grid {
        grid-template-columns: 1fr;
      }

      .topic-card.large {
        grid-column: auto;
      }

      .bottom-inner {
        flex-direction: column;
        align-items: stretch;
        justify-content: center;
        padding: 12px 0;
      }

      .bottom-actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
      }

      .bottom-actions a {
        min-height: 44px;
        padding-inline: 12px;
      }
    }

    @media (max-width: 520px) {
      .site-container {
        width: min(100% - 22px, var(--container));
      }

      .brand-name {
        font-size: 16px;
      }

      .hero-overlay-tabs {
        top: 14px;
        left: 14px;
        right: 14px;
      }

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

      .hero-cta {
        display: grid;
        grid-template-columns: 1fr;
      }

      .btn-main,
      .btn-soft,
      .btn-darkline {
        width: 100%;
      }

      .signal-panel,
      .progress-panel,
      .news-panel,
      .card-box,
      .topic-card,
      .feature-card,
      .related-card,
      .faq-item,
      .quote {
        border-radius: 16px;
      }

      .cta-panel {
        border-radius: 22px;
      }
    }

/* roulang page: category1 */
:root {
      --bg: #101114;
      --bg-deep: #07080a;
      --panel: #17191f;
      --panel-2: #202329;
      --panel-soft: #272a31;
      --text: #f4f1e8;
      --muted: #b9b2a5;
      --weak: #817b70;
      --line: rgba(244, 241, 232, .14);
      --line-strong: rgba(244, 241, 232, .24);
      --accent: #d7ff4f;
      --accent-2: #ff6b45;
      --accent-3: #52e0c4;
      --shadow: 0 20px 60px rgba(0, 0, 0, .34);
      --shadow-soft: 0 14px 34px rgba(0, 0, 0, .24);
      --radius-lg: 26px;
      --radius-md: 18px;
      --radius-sm: 12px;
      --container: 1180px;
      --bottom-cta-height: 76px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      min-height: 100vh;
      color: var(--text);
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      line-height: 1.7;
      background:
        radial-gradient(circle at 18% 0%, rgba(215, 255, 79, .10), transparent 34%),
        linear-gradient(180deg, #101114 0%, #0c0d10 46%, #111216 100%);
      padding-bottom: var(--bottom-cta-height);
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .22s ease, border-color .22s ease, background .22s ease, transform .22s ease, box-shadow .22s ease;
    }

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

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

    button,
    input,
    select {
      font: inherit;
    }

    button:focus-visible,
    input:focus-visible,
    select:focus-visible,
    a:focus-visible {
      outline: 3px solid rgba(215, 255, 79, .45);
      outline-offset: 3px;
      border-radius: 12px;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(16, 17, 20, .92);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--line);
      box-shadow: 0 12px 30px rgba(0, 0, 0, .22);
    }

    .top-nav {
      min-height: 78px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
      border-bottom: 1px solid rgba(244, 241, 232, .08);
    }

    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      color: #12130f;
      font-weight: 900;
      background: linear-gradient(135deg, var(--accent), #fff0a8);
      border-radius: 14px;
      box-shadow: 0 10px 24px rgba(215, 255, 79, .22);
      flex: 0 0 auto;
    }

    .brand-name {
      font-size: 20px;
      font-weight: 900;
      letter-spacing: 0;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      min-width: 360px;
      justify-content: flex-end;
    }

    .search-wrap {
      display: flex;
      align-items: center;
      width: min(380px, 44vw);
      height: 46px;
      background: var(--panel);
      border: 1px solid var(--line);
      border-radius: 999px;
      overflow: hidden;
    }

    .search-wrap input {
      flex: 1;
      width: 100%;
      border: 0;
      outline: 0;
      color: var(--text);
      background: transparent;
      padding: 0 0 0 18px;
      font-size: 14px;
    }

    .search-wrap input::placeholder {
      color: var(--weak);
    }

    .search-wrap button {
      width: 48px;
      height: 46px;
      border: 0;
      color: var(--accent);
      background: transparent;
      font-size: 22px;
      cursor: pointer;
    }

    .search-wrap:hover {
      border-color: rgba(215, 255, 79, .42);
      box-shadow: 0 0 0 4px rgba(215, 255, 79, .05);
    }

    .btn-main,
    .btn-ghost,
    .btn-soft {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
      padding: 12px 20px;
      border-radius: 999px;
      font-weight: 800;
      white-space: nowrap;
      border: 1px solid transparent;
      transition: transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease, color .22s ease;
    }

    .btn-main {
      color: #12130f;
      background: linear-gradient(135deg, var(--accent), #f8ffb5);
      box-shadow: 0 14px 34px rgba(215, 255, 79, .18);
    }

    .btn-main:hover {
      color: #12130f;
      transform: translateY(-2px);
      box-shadow: 0 18px 44px rgba(215, 255, 79, .28);
      filter: brightness(1.04);
    }

    .btn-ghost {
      color: var(--text);
      border-color: var(--line-strong);
      background: rgba(244, 241, 232, .04);
    }

    .btn-ghost:hover {
      color: var(--accent);
      border-color: rgba(215, 255, 79, .44);
      transform: translateY(-2px);
      background: rgba(215, 255, 79, .08);
    }

    .btn-soft {
      color: var(--text);
      background: rgba(255, 107, 69, .12);
      border-color: rgba(255, 107, 69, .28);
    }

    .btn-soft:hover {
      color: #fff;
      background: rgba(255, 107, 69, .22);
      transform: translateY(-2px);
      box-shadow: 0 14px 30px rgba(255, 107, 69, .16);
    }

    .channel-row {
      min-height: 58px;
      display: flex;
      align-items: center;
      overflow-x: auto;
      scrollbar-width: none;
    }

    .channel-row::-webkit-scrollbar {
      display: none;
    }

    .channel-tabs {
      display: flex;
      align-items: center;
      gap: 10px;
      min-width: max-content;
    }

    .channel-tabs a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 38px;
      padding: 8px 16px;
      border-radius: 999px;
      color: var(--muted);
      font-weight: 800;
      border: 1px solid transparent;
      background: transparent;
    }

    .channel-tabs a:hover {
      color: var(--text);
      background: rgba(244, 241, 232, .06);
      border-color: var(--line);
    }

    .channel-tabs a.active {
      color: #141510;
      background: var(--accent);
      border-color: var(--accent);
      box-shadow: 0 10px 22px rgba(215, 255, 79, .18);
    }

    main {
      display: block;
    }

    .section {
      padding: 72px 0;
    }

    .section-tight {
      padding: 48px 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--accent);
      font-size: 13px;
      font-weight: 900;
      letter-spacing: 0;
      padding: 7px 12px;
      border: 1px solid rgba(215, 255, 79, .26);
      background: rgba(215, 255, 79, .08);
      border-radius: 999px;
    }

    .hero {
      padding: 54px 0 44px;
    }

    .hero-panel {
      display: grid;
      grid-template-columns: 1.08fr .92fr;
      gap: 24px;
      padding: 30px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--line);
      background:
        linear-gradient(135deg, rgba(244, 241, 232, .06), rgba(244, 241, 232, .02)),
        var(--panel);
      box-shadow: var(--shadow);
      position: relative;
      overflow: hidden;
    }

    .hero-panel::before {
      content: "";
      position: absolute;
      inset: 0;
      pointer-events: none;
      background:
        linear-gradient(90deg, rgba(215, 255, 79, .08), transparent 28%),
        repeating-linear-gradient(90deg, rgba(255, 255, 255, .025) 0, rgba(255, 255, 255, .025) 1px, transparent 1px, transparent 48px);
      opacity: .9;
    }

    .hero-copy,
    .ranking-board {
      position: relative;
      z-index: 1;
    }

    .hero h1 {
      margin: 20px 0 16px;
      font-size: clamp(34px, 5vw, 64px);
      line-height: 1.08;
      font-weight: 950;
      letter-spacing: 0;
      max-width: 820px;
    }

    .hero-lead {
      color: var(--muted);
      font-size: 18px;
      max-width: 720px;
      margin: 0 0 24px;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 24px;
    }

    .filter-console {
      display: grid;
      grid-template-columns: 1fr 180px;
      gap: 12px;
      padding: 14px;
      border-radius: var(--radius-md);
      border: 1px solid var(--line);
      background: rgba(7, 8, 10, .52);
    }

    .filter-console input,
    .filter-console select {
      min-height: 50px;
      width: 100%;
      color: var(--text);
      background: var(--panel-2);
      border: 1px solid var(--line);
      border-radius: 14px;
      padding: 0 15px;
      outline: 0;
    }

    .filter-console select {
      cursor: pointer;
    }

    .quick-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 14px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      min-height: 32px;
      padding: 5px 11px;
      color: var(--muted);
      background: rgba(244, 241, 232, .06);
      border: 1px solid var(--line);
      border-radius: 999px;
      font-size: 13px;
      font-weight: 800;
    }

    .tag.hot {
      color: #19150f;
      background: var(--accent-2);
      border-color: var(--accent-2);
    }

    .tag.fresh {
      color: #07130f;
      background: var(--accent-3);
      border-color: var(--accent-3);
    }

    .ranking-board {
      padding: 22px;
      border-radius: 22px;
      border: 1px solid rgba(244, 241, 232, .16);
      background: rgba(7, 8, 10, .72);
      min-height: 100%;
    }

    .board-head {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 14px;
      padding-bottom: 14px;
      border-bottom: 1px solid var(--line);
    }

    .board-title {
      font-size: 19px;
      font-weight: 950;
      margin: 0;
    }

    .board-note {
      color: var(--weak);
      font-size: 13px;
      margin: 2px 0 0;
    }

    .score-pill {
      flex: 0 0 auto;
      color: #141510;
      background: var(--accent);
      border-radius: 999px;
      padding: 7px 12px;
      font-weight: 950;
    }

    .rank-list {
      display: grid;
      gap: 12px;
      margin-top: 18px;
    }

    .rank-item {
      display: grid;
      grid-template-columns: 34px 1fr auto;
      align-items: center;
      gap: 12px;
      padding: 14px;
      border-radius: 16px;
      background: rgba(244, 241, 232, .055);
      border: 1px solid rgba(244, 241, 232, .10);
    }

    .rank-num {
      width: 34px;
      height: 34px;
      display: grid;
      place-items: center;
      color: #12130f;
      background: #f4f1e8;
      border-radius: 12px;
      font-weight: 950;
    }

    .rank-item:first-child .rank-num {
      background: var(--accent);
    }

    .rank-name {
      font-weight: 900;
      line-height: 1.3;
    }

    .rank-meta {
      color: var(--weak);
      font-size: 13px;
    }

    .rank-status {
      color: var(--accent);
      font-weight: 950;
      font-size: 13px;
    }

    .trust-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
      margin-top: 22px;
    }

    .trust-item {
      padding: 16px;
      border-radius: 18px;
      border: 1px solid var(--line);
      background: rgba(244, 241, 232, .045);
    }

    .trust-k {
      font-size: 24px;
      font-weight: 950;
      color: var(--accent);
      line-height: 1.1;
    }

    .trust-v {
      color: var(--muted);
      margin-top: 4px;
      font-size: 14px;
    }

    .section-head {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 22px;
      align-items: end;
      margin-bottom: 26px;
    }

    .section-head h2 {
      font-size: clamp(26px, 3vw, 40px);
      line-height: 1.15;
      font-weight: 950;
      margin: 12px 0 0;
      letter-spacing: 0;
    }

    .section-head p {
      color: var(--muted);
      margin: 10px 0 0;
      max-width: 680px;
    }

    .segmented {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px;
      border: 1px solid var(--line);
      border-radius: 999px;
      background: rgba(244, 241, 232, .05);
    }

    .segmented button {
      border: 0;
      color: var(--muted);
      background: transparent;
      padding: 9px 14px;
      border-radius: 999px;
      font-weight: 900;
      cursor: pointer;
      transition: .22s ease;
    }

    .segmented button.active,
    .segmented button:hover {
      color: #12130f;
      background: var(--accent);
    }

    .collection-layout {
      display: grid;
      grid-template-columns: .86fr 1.14fr;
      gap: 20px;
      align-items: stretch;
    }

    .feature-card,
    .entry-card,
    .guide-card,
    .faq-card,
    .cta-panel {
      border: 1px solid var(--line);
      background: linear-gradient(180deg, rgba(244, 241, 232, .07), rgba(244, 241, 232, .035));
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-soft);
      transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease, background .22s ease;
    }

    .feature-card:hover,
    .entry-card:hover,
    .guide-card:hover {
      transform: translateY(-4px);
      border-color: rgba(215, 255, 79, .32);
      box-shadow: 0 20px 46px rgba(0, 0, 0, .30);
    }

    .feature-card {
      min-height: 100%;
      padding: 26px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      background:
        linear-gradient(145deg, rgba(255, 107, 69, .16), transparent 48%),
        linear-gradient(180deg, rgba(244, 241, 232, .08), rgba(244, 241, 232, .04));
    }

    .feature-card h3,
    .entry-card h3,
    .guide-card h3 {
      font-size: 22px;
      font-weight: 950;
      margin: 12px 0 10px;
      letter-spacing: 0;
    }

    .feature-card p,
    .entry-card p,
    .guide-card p {
      color: var(--muted);
      margin: 0;
    }

    .feature-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 22px;
    }

    .metric-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      margin-top: 28px;
    }

    .metric-box {
      padding: 14px;
      border-radius: 16px;
      background: rgba(7, 8, 10, .52);
      border: 1px solid var(--line);
    }

    .metric-num {
      color: var(--accent);
      font-size: 24px;
      font-weight: 950;
      line-height: 1;
    }

    .metric-label {
      color: var(--weak);
      font-size: 13px;
      margin-top: 7px;
    }

    .entry-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
    }

    .entry-card {
      padding: 20px;
    }

    .entry-top {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      margin-bottom: 10px;
    }

    .entry-mark {
      color: var(--accent);
      font-weight: 950;
      font-size: 13px;
    }

    .entry-card .btn-ghost,
    .feature-card .btn-main {
      margin-top: 18px;
    }

    .dense-list {
      display: grid;
      gap: 12px;
    }

    .dense-item {
      display: grid;
      grid-template-columns: 48px minmax(0, 1fr) auto;
      gap: 14px;
      align-items: center;
      padding: 16px;
      border-radius: 18px;
      background: var(--panel);
      border: 1px solid var(--line);
      transition: .22s ease;
    }

    .dense-item:hover {
      transform: translateX(4px);
      border-color: rgba(215, 255, 79, .30);
      background: var(--panel-2);
    }

    .dense-icon {
      width: 48px;
      height: 48px;
      display: grid;
      place-items: center;
      color: #12130f;
      background: var(--accent);
      border-radius: 16px;
      font-weight: 950;
    }

    .dense-title {
      font-weight: 950;
      font-size: 18px;
      margin: 0;
    }

    .dense-desc {
      color: var(--muted);
      font-size: 14px;
      margin: 3px 0 0;
    }

    .dense-action {
      color: var(--accent);
      font-weight: 950;
      white-space: nowrap;
    }

    .guide-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
    }

    .guide-card {
      padding: 22px;
      min-height: 220px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .guide-index {
      color: rgba(244, 241, 232, .28);
      font-size: 44px;
      line-height: 1;
      font-weight: 950;
    }

    .compare-panel {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
      align-items: stretch;
    }

    .compare-block {
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--line);
      background: var(--panel);
    }

    .compare-block h3 {
      font-size: 24px;
      font-weight: 950;
      margin: 0 0 12px;
    }

    .check-list {
      display: grid;
      gap: 12px;
      padding: 0;
      margin: 0;
      list-style: none;
    }

    .check-list li {
      position: relative;
      padding-left: 28px;
      color: var(--muted);
    }

    .check-list li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 0;
      color: var(--accent);
      font-weight: 950;
    }

    .faq-wrap {
      display: grid;
      grid-template-columns: .72fr 1.28fr;
      gap: 22px;
      align-items: start;
    }

    .faq-card {
      padding: 24px;
    }

    .accordion {
      display: grid;
      gap: 12px;
    }

    .accordion-item {
      border: 1px solid var(--line);
      border-radius: 18px !important;
      overflow: hidden;
      background: var(--panel) !important;
      color: var(--text);
    }

    .accordion-button {
      color: var(--text) !important;
      background: var(--panel) !important;
      font-weight: 950;
      padding: 18px 20px;
      box-shadow: none !important;
      letter-spacing: 0;
    }

    .accordion-button:not(.collapsed) {
      color: var(--accent) !important;
      background: var(--panel-2) !important;
    }

    .accordion-button::after {
      filter: invert(1);
    }

    .accordion-body {
      color: var(--muted);
      padding: 0 20px 20px;
      background: var(--panel-2);
    }

    .cta-panel {
      padding: 32px;
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 24px;
      align-items: center;
      background:
        linear-gradient(135deg, rgba(215, 255, 79, .16), transparent 44%),
        linear-gradient(180deg, rgba(244, 241, 232, .08), rgba(244, 241, 232, .04));
    }

    .cta-panel h2 {
      font-size: clamp(26px, 3vw, 40px);
      font-weight: 950;
      line-height: 1.16;
      margin: 0 0 10px;
    }

    .cta-panel p {
      color: var(--muted);
      margin: 0;
      max-width: 720px;
    }

    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: flex-end;
    }

    .site-footer {
      padding: 54px 0 34px;
      background: #08090b;
      border-top: 1px solid var(--line);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr 1fr;
      gap: 28px;
    }

    .footer-title {
      font-size: 18px;
      font-weight: 950;
      margin-bottom: 10px;
    }

    .footer-desc {
      color: var(--muted);
      margin: 0;
    }

    .footer-links {
      display: grid;
      gap: 8px;
    }

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

    .footer-links a:hover {
      color: var(--accent);
      transform: translateX(3px);
    }

    .copyright {
      color: var(--weak);
      font-size: 13px;
      border-top: 1px solid var(--line);
      padding-top: 18px;
    }

    .fixed-bottom-cta {
      position: fixed;
      left: 0;
      right: 0;
      bottom: 0;
      z-index: 60;
      min-height: var(--bottom-cta-height);
      background: rgba(8, 9, 11, .92);
      backdrop-filter: blur(18px);
      border-top: 1px solid var(--line-strong);
      box-shadow: 0 -12px 34px rgba(0, 0, 0, .34);
    }

    .bottom-cta-inner {
      width: min(var(--container), calc(100% - 32px));
      margin: 0 auto;
      min-height: var(--bottom-cta-height);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .bottom-copy {
      min-width: 0;
    }

    .bottom-title {
      font-weight: 950;
      line-height: 1.2;
    }

    .bottom-desc {
      color: var(--weak);
      font-size: 13px;
      margin-top: 2px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      max-width: 560px;
    }

    .bottom-actions {
      display: flex;
      gap: 10px;
      flex: 0 0 auto;
    }

    @media (max-width: 1024px) {
      .hero-panel,
      .collection-layout,
      .faq-wrap {
        grid-template-columns: 1fr;
      }

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

      .section-head,
      .cta-panel {
        grid-template-columns: 1fr;
      }

      .cta-actions {
        justify-content: flex-start;
      }

      .nav-actions {
        min-width: 0;
      }

      .search-wrap {
        width: min(320px, 38vw);
      }
    }

    @media (max-width: 768px) {
      :root {
        --bottom-cta-height: 92px;
      }

      body {
        padding-bottom: var(--bottom-cta-height);
      }

      .site-container,
      .bottom-cta-inner {
        width: min(100% - 24px, var(--container));
      }

      .top-nav {
        min-height: auto;
        padding: 14px 0;
        align-items: flex-start;
        flex-direction: column;
      }

      .brand-name {
        font-size: 18px;
        max-width: calc(100vw - 88px);
      }

      .nav-actions {
        width: 100%;
        display: grid;
        grid-template-columns: 1fr auto;
      }

      .search-wrap {
        width: 100%;
      }

      .channel-row {
        min-height: 52px;
      }

      .hero {
        padding-top: 30px;
      }

      .hero-panel {
        padding: 20px;
        border-radius: 22px;
      }

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

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

      .filter-console,
      .entry-grid,
      .compare-panel,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .metric-row,
      .trust-strip {
        grid-template-columns: 1fr;
      }

      .dense-item {
        grid-template-columns: 44px 1fr;
      }

      .dense-action {
        grid-column: 2;
      }

      .section {
        padding: 52px 0;
      }

      .bottom-cta-inner {
        padding: 10px 0;
        align-items: stretch;
        flex-direction: column;
        gap: 8px;
      }

      .bottom-actions {
        width: 100%;
        display: grid;
        grid-template-columns: 1fr 1fr;
      }

      .bottom-actions .btn-main,
      .bottom-actions .btn-ghost {
        min-height: 42px;
        padding: 9px 12px;
      }

      .bottom-desc {
        max-width: 100%;
      }
    }

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

      .nav-actions .btn-main {
        width: 100%;
      }

      .hero-actions {
        display: grid;
        grid-template-columns: 1fr;
      }

      .hero-actions .btn-main,
      .hero-actions .btn-ghost,
      .cta-actions .btn-main,
      .cta-actions .btn-ghost,
      .cta-actions .btn-soft {
        width: 100%;
      }

      .rank-item {
        grid-template-columns: 34px 1fr;
      }

      .rank-status {
        grid-column: 2;
      }

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

      .cta-panel {
        padding: 24px;
      }

      .segmented {
        width: 100%;
        overflow-x: auto;
        justify-content: flex-start;
      }

      .section-head h2 {
        font-size: 28px;
      }

      .brand-mark {
        width: 38px;
        height: 38px;
      }
    }