/* roulang page: index */
:root {
      --bg: #121417;
      --bg-2: #1b1f1d;
      --text: #f5f7f2;
      --muted: rgba(245,247,242,.72);
      --muted-2: rgba(245,247,242,.56);
      --green: #22e6a7;
      --green-dark: #0fb985;
      --amber: #ffb547;
      --paper: #f6f4ec;
      --paper-2: #ece8da;
      --ink: #121417;
      --ink-soft: #4f554f;
      --line: rgba(34,230,167,.22);
      --line-light: #e1ded0;
      --white: #ffffff;
      --radius-sm: 12px;
      --radius: 18px;
      --radius-lg: 28px;
      --shadow-dark: 0 18px 48px rgba(0,0,0,.32);
      --shadow-card: 0 12px 28px rgba(18,20,23,.09);
      --max: 1220px;
      --font: "PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--font);
      background: var(--paper);
      color: var(--ink);
      line-height: 1.7;
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; }
    img { max-width: 100%; display: block; }
    button, input, select, textarea { font: inherit; }
    button { cursor: pointer; border: 0; background: none; }
    :focus-visible { outline: 3px solid rgba(34,230,167,.55); outline-offset: 3px; }

    .container {
      width: min(var(--max), calc(100% - 40px));
      margin: 0 auto;
    }

    .top-strip {
      background: #0d0f10;
      color: var(--text);
      border-bottom: 1px solid rgba(245,247,242,.08);
      font-size: 13px;
    }
    .top-strip .container {
      min-height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 18px;
      flex-wrap: wrap;
    }
    .strip-dot {
      width: 8px;
      height: 8px;
      border-radius: 99px;
      background: var(--green);
      box-shadow: 0 0 14px rgba(34,230,167,.7);
      display: inline-block;
      margin-right: 8px;
      vertical-align: middle;
    }
    .strip-item {
      color: rgba(245,247,242,.84);
      white-space: nowrap;
    }
    .strip-sep { color: rgba(245,247,242,.22); }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(18,20,23,.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(245,247,242,.1);
    }
    .nav-wrap {
      height: 82px;
      display: grid;
      grid-template-columns: 1fr auto 1fr;
      align-items: center;
      gap: 28px;
    }
    .nav-left, .nav-right {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .nav-left { justify-content: flex-end; }
    .nav-right { justify-content: flex-start; }
    .brand {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 2px;
      min-width: 230px;
      color: var(--text);
      font-weight: 900;
      letter-spacing: -.04em;
      text-align: center;
    }
    .brand-mark {
      width: 44px;
      height: 10px;
      border-radius: 999px;
      background: linear-gradient(90deg, var(--green), var(--amber));
      box-shadow: 0 0 22px rgba(34,230,167,.32);
    }
    .brand span:last-child { font-size: 18px; }
    .nav-link {
      color: rgba(245,247,242,.76);
      padding: 10px 14px;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 700;
      transition: .22s ease;
      position: relative;
      white-space: nowrap;
    }
    .nav-link:hover {
      color: var(--text);
      background: rgba(245,247,242,.08);
    }
    .nav-link.active {
      color: #101312;
      background: var(--green);
      box-shadow: inset 0 -2px 0 rgba(0,0,0,.18);
    }
    .nav-cta {
      padding: 11px 16px;
      border-radius: 999px;
      border: 1px solid rgba(34,230,167,.42);
      color: var(--green);
      font-weight: 800;
      transition: .22s ease;
    }
    .nav-cta:hover { background: rgba(34,230,167,.12); transform: translateY(-1px); }
    .mobile-toggle { display: none; color: var(--text); width: 44px; height: 44px; border-radius: 12px; background: rgba(245,247,242,.08); }
    .mobile-menu {
      display: none;
      border-top: 1px solid rgba(245,247,242,.1);
      padding: 12px 0 18px;
    }
    .mobile-menu a {
      display: block;
      color: var(--text);
      padding: 14px 18px;
      border-radius: 14px;
      margin: 6px 0;
      background: rgba(245,247,242,.06);
      font-weight: 700;
    }

    .hero {
      background:
        radial-gradient(circle at 78% 20%, rgba(34,230,167,.18), transparent 32%),
        radial-gradient(circle at 20% 10%, rgba(255,181,71,.15), transparent 28%),
        linear-gradient(135deg, #121417 0%, #171b19 58%, #0d0f10 100%);
      color: var(--text);
      padding: 62px 0 58px;
      position: relative;
      overflow: hidden;
    }
    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      opacity: .18;
      background-image:
        linear-gradient(rgba(245,247,242,.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(245,247,242,.08) 1px, transparent 1px);
      background-size: 34px 34px;
      mask-image: linear-gradient(to bottom, #000, transparent 82%);
    }
    .hero-grid {
      position: relative;
      display: grid;
      grid-template-columns: 5fr 7fr;
      gap: 34px;
      align-items: center;
    }
    .hero-copy {
      padding: 34px 0;
      z-index: 1;
    }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--green);
      background: rgba(34,230,167,.11);
      border: 1px solid rgba(34,230,167,.26);
      padding: 8px 13px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 800;
      margin-bottom: 18px;
    }
    .hero h1 {
      font-size: clamp(34px, 5vw, 58px);
      line-height: 1.08;
      letter-spacing: -.06em;
      font-weight: 900;
      margin-bottom: 18px;
    }
    .hero-desc {
      color: rgba(245,247,242,.78);
      font-size: 17px;
      max-width: 560px;
      margin-bottom: 26px;
    }
    .hero-actions, .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      align-items: center;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 50px;
      padding: 14px 20px;
      border-radius: 999px;
      font-weight: 900;
      transition: .22s ease;
      border: 1px solid transparent;
      line-height: 1.2;
    }
    .btn-primary {
      background: var(--green);
      color: #0c1210;
      box-shadow: 0 12px 24px rgba(34,230,167,.24), inset 0 -3px 0 rgba(0,0,0,.16);
    }
    .btn-primary:hover { transform: translateY(-2px); filter: brightness(1.04); }
    .btn-secondary {
      color: var(--text);
      border-color: rgba(245,247,242,.24);
      background: rgba(245,247,242,.06);
    }
    .btn-secondary:hover { border-color: rgba(34,230,167,.5); background: rgba(34,230,167,.1); }
    .btn-amber {
      color: var(--ink);
      background: var(--amber);
      box-shadow: inset 0 -3px 0 rgba(0,0,0,.12);
    }
    .btn-small {
      min-height: 38px;
      padding: 10px 14px;
      font-size: 14px;
    }
    .kpi-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-top: 26px;
      max-width: 540px;
    }
    .kpi {
      border: 1px solid rgba(245,247,242,.11);
      background: rgba(245,247,242,.055);
      border-radius: 16px;
      padding: 13px;
    }
    .kpi strong { display: block; color: var(--green); font-size: 22px; line-height: 1.1; }
    .kpi span { color: rgba(245,247,242,.64); font-size: 13px; }

    .dp-cover {
      position: relative;
      min-height: 455px;
      transform: rotate(-1.2deg);
    }
    .cover-panel {
      position: absolute;
      inset: 14px 0 0 28px;
      background: #1b1f1d;
      border: 1px solid rgba(245,247,242,.12);
      border-radius: 30px;
      box-shadow: var(--shadow-dark);
      padding: 22px;
      overflow: hidden;
    }
    .cover-panel::after {
      content: "UTF-8  GBK  ASS  SRT  字体  语言  ✓";
      position: absolute;
      left: -18px;
      right: -18px;
      bottom: 14px;
      color: rgba(245,247,242,.08);
      font-size: 34px;
      font-weight: 900;
      letter-spacing: .05em;
      white-space: nowrap;
    }
    .cover-top {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      margin-bottom: 18px;
    }
    .cover-title { font-size: 20px; font-weight: 900; }
    .status-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      border-radius: 999px;
      padding: 6px 10px;
      font-size: 12px;
      font-weight: 900;
    }
    .ok { background: rgba(34,230,167,.16); color: var(--green); }
    .warn { background: rgba(255,181,71,.17); color: var(--amber); }
    .neutral { background: rgba(245,247,242,.1); color: rgba(245,247,242,.72); }
    .scan-card {
      background: #111412;
      border: 1px solid rgba(34,230,167,.2);
      border-radius: 22px;
      padding: 16px;
      margin-bottom: 14px;
    }
    .scan-row {
      display: grid;
      grid-template-columns: 110px 1fr auto;
      gap: 12px;
      align-items: center;
      padding: 12px 0;
      border-bottom: 1px solid rgba(245,247,242,.08);
      color: rgba(245,247,242,.84);
      font-size: 14px;
    }
    .scan-row:last-child { border-bottom: 0; }
    .bar {
      height: 8px;
      border-radius: 999px;
      background: rgba(245,247,242,.1);
      overflow: hidden;
    }
    .bar i {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--green), var(--amber));
    }
    .compare {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-top: 14px;
    }
    .compare-box {
      min-height: 116px;
      border-radius: 20px;
      border: 1px solid rgba(245,247,242,.11);
      background: rgba(245,247,242,.055);
      padding: 15px;
      position: relative;
      z-index: 1;
    }
    .compare-box b { display: block; margin-bottom: 10px; }
    .garbled { color: rgba(245,247,242,.42); letter-spacing: .08em; word-break: break-all; }
    .readable { color: var(--green); font-weight: 800; }

    .section {
      padding: 72px 0;
    }
    .section.alt { background: var(--paper-2); }
    .section.dark {
      background: var(--bg);
      color: var(--text);
    }
    .section-head {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      gap: 22px;
      margin-bottom: 26px;
    }
    .section-title {
      font-size: clamp(28px, 3.3vw, 40px);
      line-height: 1.18;
      letter-spacing: -.04em;
      font-weight: 900;
    }
    .section-desc {
      max-width: 650px;
      color: var(--ink-soft);
      font-size: 16px;
      margin-top: 10px;
    }
    .dark .section-desc { color: rgba(245,247,242,.68); }

    .tag {
      display: inline-flex;
      align-items: center;
      border: 1px solid var(--line-light);
      background: rgba(255,255,255,.58);
      color: #4d514d;
      border-radius: 999px;
      padding: 6px 10px;
      font-size: 12px;
      font-weight: 800;
      margin: 3px 4px 3px 0;
    }
    .tag.green { border-color: rgba(34,230,167,.36); background: rgba(34,230,167,.12); color: #087656; }
    .tag.amber { border-color: rgba(255,181,71,.45); background: rgba(255,181,71,.14); color: #8d5b09; }

    .coupon-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }
    .coupon {
      background: var(--white);
      border: 1px solid var(--line-light);
      border-radius: 22px;
      padding: 18px;
      box-shadow: var(--shadow-card);
      position: relative;
      min-height: 210px;
      transition: .22s ease;
      overflow: hidden;
    }
    .coupon::before, .coupon::after {
      content: "";
      position: absolute;
      top: 82px;
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: var(--paper);
      border: 1px solid var(--line-light);
    }
    .coupon::before { left: -12px; }
    .coupon::after { right: -12px; }
    .coupon:hover {
      transform: translateY(-3px);
      border-color: rgba(34,230,167,.7);
      box-shadow: 0 18px 34px rgba(18,20,23,.13);
    }
    .coupon-num {
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--green-dark);
      font-weight: 900;
      margin-bottom: 18px;
      border-bottom: 1px dashed #d8d3bf;
      padding-bottom: 14px;
    }
    .coupon h3 { font-size: 20px; line-height: 1.28; margin-bottom: 10px; }
    .coupon p { color: var(--ink-soft); font-size: 14px; margin-bottom: 12px; }
    .progress {
      height: 7px;
      background: #ede9d9;
      border-radius: 999px;
      overflow: hidden;
      margin-top: 14px;
    }
    .progress span { display: block; height: 100%; background: var(--green); border-radius: inherit; }

    .rules-wrap {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 24px;
      align-items: stretch;
    }
    .rule-board {
      background: var(--bg-2);
      color: var(--text);
      border-radius: 28px;
      padding: 28px;
      box-shadow: var(--shadow-dark);
      border: 1px solid rgba(245,247,242,.11);
    }
    .rule-board h2 { font-size: 32px; line-height: 1.2; margin-bottom: 12px; }
    .rule-board p { color: rgba(245,247,242,.72); }
    .rule-list {
      display: grid;
      gap: 14px;
    }
    .rule-item {
      display: grid;
      grid-template-columns: 48px 1fr;
      gap: 14px;
      align-items: flex-start;
      background: #fff;
      border: 1px solid var(--line-light);
      border-radius: 18px;
      padding: 17px;
      box-shadow: var(--shadow-card);
      transition: .22s ease;
    }
    .rule-item:hover { border-color: var(--green); transform: translateY(-2px); }
    .rule-icon {
      width: 48px;
      height: 48px;
      display: grid;
      place-items: center;
      border-radius: 15px;
      background: rgba(34,230,167,.13);
      color: #087656;
      font-weight: 900;
    }
    .rule-item h3 { font-size: 18px; margin-bottom: 4px; }
    .rule-item p { color: var(--ink-soft); font-size: 14px; }

    .feature-layout {
      display: grid;
      grid-template-columns: 1.08fr .92fr;
      gap: 20px;
    }
    .feature-main, .info-list, .side-panel, .review-card, .faq-item, .related-card {
      background: #fff;
      border: 1px solid var(--line-light);
      border-radius: 24px;
      box-shadow: var(--shadow-card);
    }
    .feature-main {
      padding: 24px;
      min-height: 430px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      background:
        linear-gradient(135deg, rgba(34,230,167,.12), transparent 42%),
        #fff;
    }
    .feature-main h3 { font-size: 28px; line-height: 1.25; margin: 12px 0; }
    .feature-main p { color: var(--ink-soft); }
    .abstract-cover {
      height: 150px;
      border-radius: 22px;
      background:
        linear-gradient(135deg, #121417, #242b26),
        repeating-linear-gradient(90deg, rgba(245,247,242,.1) 0 8px, transparent 8px 16px);
      border: 1px solid rgba(34,230,167,.25);
      position: relative;
      overflow: hidden;
      margin-bottom: 18px;
    }
    .abstract-cover::after {
      content: "字幕正常显示 / □□□ / 编码检查 / 中文可读";
      position: absolute;
      left: 22px;
      bottom: 20px;
      color: var(--green);
      font-weight: 900;
      letter-spacing: .03em;
    }
    .info-list { padding: 10px; }
    .news-item {
      display: grid;
      grid-template-columns: auto 1fr auto;
      gap: 12px;
      align-items: center;
      padding: 15px;
      border-radius: 18px;
      transition: .22s ease;
    }
    .news-item + .news-item { border-top: 1px solid #eee9d7; }
    .news-item:hover { background: #faf8ef; transform: translateX(2px); }
    .news-index {
      width: 36px; height: 36px; border-radius: 12px;
      display: grid; place-items: center;
      background: #111412; color: var(--green);
      font-weight: 900; font-size: 13px;
    }
    .news-item h3 { font-size: 17px; line-height: 1.35; }
    .news-item p { color: var(--ink-soft); font-size: 13px; margin-top: 3px; }
    .news-meta { color: #087656; font-size: 12px; font-weight: 900; white-space: nowrap; }

    .related-grid {
      display: grid;
      grid-template-columns: 1.15fr .85fr .85fr;
      gap: 16px;
      align-items: stretch;
    }
    .related-card {
      padding: 20px;
      transition: .22s ease;
      min-height: 220px;
      overflow: hidden;
      position: relative;
    }
    .related-card:hover { transform: translateY(-3px); border-color: var(--amber); }
    .related-card.large { background: #121417; color: var(--text); border-color: rgba(245,247,242,.12); }
    .related-card h3 { font-size: 22px; line-height: 1.25; margin: 12px 0 10px; }
    .related-card p { color: var(--ink-soft); font-size: 14px; }
    .related-card.large p { color: rgba(245,247,242,.7); }
    .corner {
      position: absolute;
      right: 18px;
      top: 16px;
      color: rgba(18,20,23,.08);
      font-size: 64px;
      font-weight: 900;
      line-height: 1;
    }
    .large .corner { color: rgba(245,247,242,.08); }

    .rank-review {
      display: grid;
      grid-template-columns: .95fr 1.05fr;
      gap: 20px;
    }
    .rank-table {
      background: #fff;
      border: 1px solid var(--line-light);
      border-radius: 24px;
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }
    .rank-row {
      display: grid;
      grid-template-columns: 58px 1fr 88px;
      gap: 12px;
      align-items: center;
      padding: 16px 18px;
      border-bottom: 1px solid #eee9d7;
    }
    .rank-row:last-child { border-bottom: 0; }
    .rank-no {
      width: 34px; height: 34px; border-radius: 12px;
      background: rgba(34,230,167,.13);
      color: #087656;
      display: grid; place-items: center;
      font-weight: 900;
    }
    .rank-row b { display: block; line-height: 1.35; }
    .rank-row span { color: var(--ink-soft); font-size: 13px; }
    .heat {
      font-weight: 900;
      color: #8d5b09;
      background: rgba(255,181,71,.16);
      border-radius: 999px;
      padding: 5px 9px;
      text-align: center;
      font-size: 12px;
    }
    .review-wall {
      display: grid;
      gap: 12px;
    }
    .review-card {
      padding: 18px;
      transition: .22s ease;
    }
    .review-card:hover { transform: translateY(-2px); border-color: rgba(34,230,167,.65); }
    .review-top {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 8px;
      font-weight: 900;
    }
    .stars { color: var(--amber); letter-spacing: 1px; }
    .review-card p { color: var(--ink-soft); font-size: 14px; }

    .faq-grid {
      display: grid;
      grid-template-columns: .8fr 1.2fr;
      gap: 22px;
      align-items: start;
    }
    .faq-note {
      background: #121417;
      color: var(--text);
      border-radius: 26px;
      padding: 26px;
      border: 1px solid rgba(245,247,242,.12);
      position: sticky;
      top: 110px;
    }
    .faq-note p { color: rgba(245,247,242,.68); margin: 10px 0 18px; }
    .faq-list { display: grid; gap: 12px; }
    .faq-item { overflow: hidden; }
    .faq-q {
      width: 100%;
      display: flex;
      justify-content: space-between;
      gap: 18px;
      align-items: center;
      padding: 18px 20px;
      text-align: left;
      color: var(--ink);
      font-weight: 900;
    }
    .faq-q span { transition: .22s ease; color: #087656; font-size: 22px; }
    .faq-a {
      display: none;
      padding: 0 20px 18px;
      color: var(--ink-soft);
      font-size: 15px;
    }
    .faq-item.open { border-color: var(--green); }
    .faq-item.open .faq-a { display: block; }
    .faq-item.open .faq-q span { transform: rotate(45deg); }

    .final-cta {
      background:
        radial-gradient(circle at 88% 20%, rgba(34,230,167,.22), transparent 30%),
        linear-gradient(135deg, #121417, #1c211e);
      color: var(--text);
      border-radius: 32px;
      padding: 34px;
      border: 1px solid rgba(245,247,242,.12);
      box-shadow: var(--shadow-dark);
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 26px;
      align-items: center;
    }
    .final-cta h2 {
      font-size: clamp(28px, 3vw, 42px);
      line-height: 1.18;
      letter-spacing: -.04em;
      margin-bottom: 10px;
    }
    .final-cta p { color: rgba(245,247,242,.72); max-width: 680px; }

    .site-footer {
      background: #0d0f10;
      color: rgba(245,247,242,.7);
      padding: 44px 0 34px;
      border-top: 1px solid rgba(245,247,242,.08);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr .8fr;
      gap: 28px;
      align-items: start;
    }
    .footer-brand {
      color: var(--text);
      font-weight: 900;
      font-size: 20px;
      margin-bottom: 10px;
    }
    .footer-grid p { font-size: 14px; max-width: 520px; }
    .footer-title { color: var(--text); font-weight: 900; margin-bottom: 10px; }
    .footer-links { display: grid; gap: 8px; }
    .footer-links a { font-size: 14px; transition: .22s ease; }
    .footer-links a:hover { color: var(--green); }
    .copyright {
      margin-top: 28px;
      padding-top: 18px;
      border-top: 1px solid rgba(245,247,242,.08);
      font-size: 13px;
      color: rgba(245,247,242,.48);
      display: flex;
      justify-content: space-between;
      gap: 12px;
      flex-wrap: wrap;
    }

    .mobile-bottom {
      display: none;
      position: fixed;
      left: 12px;
      right: 12px;
      bottom: 12px;
      z-index: 60;
      background: rgba(18,20,23,.94);
      color: var(--text);
      border: 1px solid rgba(34,230,167,.28);
      border-radius: 20px;
      padding: 10px;
      box-shadow: 0 16px 38px rgba(0,0,0,.3);
      align-items: center;
      justify-content: space-between;
      gap: 10px;
    }
    .mobile-bottom b { font-size: 13px; line-height: 1.25; padding-left: 6px; }
    .back-top {
      position: fixed;
      right: 18px;
      bottom: 22px;
      width: 46px;
      height: 46px;
      border-radius: 15px;
      background: var(--green);
      color: var(--ink);
      box-shadow: 0 12px 24px rgba(18,20,23,.18);
      font-weight: 900;
      display: grid;
      place-items: center;
      z-index: 45;
      opacity: 0;
      transform: translateY(12px);
      transition: .22s ease;
    }
    .back-top.show { opacity: 1; transform: translateY(0); }

    @media (max-width: 1024px) {
      .nav-left, .nav-right { display: none; }
      .mobile-toggle { display: grid; place-items: center; }
      .nav-wrap {
        grid-template-columns: 44px 1fr auto;
        height: 72px;
      }
      .brand { min-width: 0; }
      .brand span:last-child { font-size: 16px; }
      .mobile-menu.open { display: block; }
      .hero-grid, .rules-wrap, .feature-layout, .rank-review, .faq-grid {
        grid-template-columns: 1fr;
      }
      .dp-cover { min-height: 440px; transform: none; }
      .cover-panel { inset: 0; }
      .coupon-grid { grid-template-columns: repeat(2, 1fr); }
      .related-grid { grid-template-columns: 1fr 1fr; }
      .related-card.large { grid-column: 1 / -1; }
      .faq-note { position: static; }
      .final-cta { grid-template-columns: 1fr; }
    }

    @media (max-width: 720px) {
      .container { width: min(100% - 28px, var(--max)); }
      .top-strip .container { justify-content: flex-start; overflow: hidden; flex-wrap: nowrap; }
      .strip-item { font-size: 12px; }
      .nav-cta { display: none; }
      .hero { padding: 38px 0 42px; }
      .hero-copy { padding: 12px 0; }
      .hero-desc { font-size: 15px; }
      .hero-actions .btn { width: 100%; }
      .kpi-row { grid-template-columns: 1fr; }
      .dp-cover { min-height: 520px; }
      .cover-panel { padding: 16px; border-radius: 24px; }
      .scan-row { grid-template-columns: 1fr; gap: 7px; }
      .compare { grid-template-columns: 1fr; }
      .section { padding: 52px 0; }
      .section-head { display: block; }
      .coupon-grid { grid-template-columns: 1fr; }
      .related-grid { grid-template-columns: 1fr; }
      .rank-row { grid-template-columns: 44px 1fr; }
      .heat { grid-column: 2; justify-self: start; }
      .news-item { grid-template-columns: auto 1fr; }
      .news-meta { grid-column: 2; }
      .footer-grid { grid-template-columns: 1fr; }
      .mobile-bottom { display: flex; }
      .back-top { bottom: 92px; }
      body { padding-bottom: 76px; }
    }

    @media (max-width: 420px) {
      .brand span:last-child { font-size: 14px; }
      .hero h1 { font-size: 31px; }
      .coupon, .rule-board, .feature-main, .final-cta { border-radius: 22px; padding: 18px; }
      .dp-cover { min-height: 560px; }
    }

/* roulang page: category1 */
:root{
      --bg-dark:#121417;
      --bg-card:#1B1F1D;
      --text-light:#F5F7F2;
      --text-muted:#BFC5BB;
      --accent:#22E6A7;
      --accent-2:#8CF7D1;
      --warning:#FFB547;
      --soft:#F6F4EC;
      --soft-2:#ECE8DA;
      --ink:#181A1D;
      --muted:#62675F;
      --line:#E1DED0;
      --line-dark:rgba(245,247,242,.12);
      --glow:rgba(34,230,167,.22);
      --radius-sm:12px;
      --radius-md:18px;
      --radius-lg:28px;
      --shadow-dark:0 16px 40px rgba(0,0,0,.28);
      --shadow-soft:0 10px 24px rgba(18,20,23,.08);
      --max:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--ink);
      background:var(--soft);
      line-height:1.7;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:.2s ease}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:var(--accent);color:#111}
    .container{max-width:var(--max);margin:0 auto;padding:0 22px}
    .skip-link{
      position:absolute;left:-999px;top:8px;background:var(--accent);color:#111;
      padding:10px 14px;border-radius:999px;z-index:99;font-weight:800
    }
    .skip-link:focus{left:12px}
    .top-strip{
      background:#0C0E10;color:var(--text-light);font-size:14px;
      border-bottom:1px solid rgba(34,230,167,.18)
    }
    .strip-inner{
      min-height:40px;display:flex;align-items:center;justify-content:center;
      gap:16px;flex-wrap:wrap
    }
    .strip-pill{display:inline-flex;align-items:center;gap:7px;color:#DDE4DA}
    .strip-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 16px var(--accent)}
    .strip-sep{opacity:.32}
    .site-header{
      position:sticky;top:0;z-index:50;background:rgba(18,20,23,.92);
      backdrop-filter:saturate(130%) blur(14px);border-bottom:1px solid rgba(245,247,242,.1)
    }
    .nav-wrap{
      min-height:78px;display:grid;grid-template-columns:1fr auto 1fr;
      align-items:center;gap:18px;position:relative
    }
    .nav-left,.nav-right{display:flex;align-items:center;gap:10px}
    .nav-left{justify-content:flex-end}
    .nav-right{justify-content:flex-start}
    .nav-link{
      color:#DDE4DA;font-weight:700;font-size:15px;padding:10px 14px;border-radius:999px;
      position:relative
    }
    .nav-link:hover,.mobile-menu a:hover{color:#111;background:var(--accent)}
    .nav-link.active{background:rgba(34,230,167,.14);color:var(--accent);box-shadow:inset 0 0 0 1px rgba(34,230,167,.32)}
    .brand{
      display:flex;align-items:center;gap:10px;color:var(--text-light);font-weight:900;
      letter-spacing:-.02em;font-size:18px;padding:10px 12px;border-radius:999px;white-space:nowrap
    }
    .brand:hover{color:var(--accent)}
    .brand-mark{
      width:28px;height:28px;border-radius:9px;background:
      linear-gradient(135deg,var(--accent),#F5F7F2 52%,var(--warning));
      box-shadow:0 0 0 4px rgba(34,230,167,.12),0 10px 22px rgba(34,230,167,.18);
      position:relative;display:inline-block
    }
    .brand-mark:after{
      content:"";position:absolute;left:7px;right:7px;top:13px;height:3px;background:#111;border-radius:999px
    }
    .nav-cta{
      color:#111;background:var(--accent);font-weight:900;padding:11px 16px;border-radius:999px;
      box-shadow:0 10px 24px rgba(34,230,167,.2)
    }
    .nav-cta:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 14px 30px rgba(34,230,167,.28)}
    .mobile-toggle{
      display:none;background:rgba(245,247,242,.08);color:#fff;border:1px solid rgba(245,247,242,.14);
      width:44px;height:44px;border-radius:14px
    }
    .mobile-toggle:focus,.btn-main:focus,.btn-ghost:focus,.filter-tag:focus,.faq-question:focus{outline:3px solid rgba(34,230,167,.45);outline-offset:3px}
    .mobile-menu{
      display:none;padding:0 0 18px;grid-template-columns:1fr;gap:10px
    }
    .mobile-menu a{
      color:#F5F7F2;background:rgba(245,247,242,.06);border:1px solid rgba(245,247,242,.1);
      border-radius:16px;padding:14px 16px;font-weight:800
    }

    .creator-hero{
      background:
        radial-gradient(circle at 8% 12%,rgba(34,230,167,.18),transparent 30%),
        radial-gradient(circle at 88% 4%,rgba(255,181,71,.16),transparent 28%),
        linear-gradient(180deg,#121417 0%,#171B18 74%,#F6F4EC 74%);
      color:var(--text-light);position:relative;overflow:hidden;padding:54px 0 48px
    }
    .creator-hero:before{
      content:"";position:absolute;inset:0;opacity:.13;pointer-events:none;
      background-image:
      linear-gradient(rgba(245,247,242,.12) 1px,transparent 1px),
      linear-gradient(90deg,rgba(245,247,242,.1) 1px,transparent 1px);
      background-size:42px 42px
    }
    .hero-card{
      position:relative;border:1px solid rgba(245,247,242,.12);border-radius:var(--radius-lg);
      background:linear-gradient(135deg,rgba(27,31,29,.96),rgba(18,20,23,.88));
      box-shadow:var(--shadow-dark);overflow:hidden
    }
    .hero-cover{
      min-height:164px;background:
      linear-gradient(90deg,rgba(34,230,167,.22),rgba(255,181,71,.14)),
      repeating-linear-gradient(135deg,rgba(245,247,242,.08) 0 1px,transparent 1px 12px);
      border-bottom:1px solid rgba(245,247,242,.12);position:relative
    }
    .hero-cover:after{
      content:"字幕编码 UTF-8 / GBK / Big5 / ASS / SRT / VTT";
      position:absolute;right:24px;bottom:18px;color:rgba(245,247,242,.72);
      font-weight:800;letter-spacing:.04em;font-size:13px
    }
    .profile-row{
      display:grid;grid-template-columns:92px 1fr auto;gap:22px;align-items:end;
      padding:0 28px 28px;margin-top:-46px;position:relative
    }
    .avatar{
      width:92px;height:92px;border-radius:24px;border:4px solid #1B1F1D;
      background:linear-gradient(135deg,var(--accent),#F5F7F2 45%,var(--warning));
      display:grid;place-items:center;color:#111;font-weight:950;font-size:24px;box-shadow:0 14px 28px rgba(0,0,0,.24)
    }
    .profile-kicker{
      display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-weight:900;margin-bottom:8px
    }
    .profile-kicker:before{content:"";width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 14px var(--accent)}
    h1{
      margin:0;font-size:clamp(32px,5vw,54px);line-height:1.08;font-weight:950;letter-spacing:-.04em;
      max-width:850px
    }
    .hero-summary{
      margin:18px 0 0;color:#D7DDD3;font-size:17px;max-width:820px
    }
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
    .btn-main,.btn-ghost,.btn-warn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;
      padding:14px 20px;font-weight:900;min-height:50px;transition:.2s ease
    }
    .btn-main{background:var(--accent);color:#111;box-shadow:0 12px 26px rgba(34,230,167,.22)}
    .btn-main:hover{transform:translateY(-2px);filter:brightness(1.06);color:#111}
    .btn-ghost{border:1px solid rgba(245,247,242,.22);color:#F5F7F2;background:rgba(245,247,242,.06)}
    .btn-ghost:hover{background:#F5F7F2;color:#111;transform:translateY(-2px)}
    .btn-warn{border:1px solid rgba(255,181,71,.55);color:#2C210F;background:rgba(255,181,71,.18)}
    .follow-box{
      align-self:center;min-width:260px;background:rgba(245,247,242,.06);border:1px solid rgba(245,247,242,.12);
      border-radius:22px;padding:18px
    }
    .follow-title{font-weight:900;margin-bottom:12px}
    .stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
    .stat{
      background:rgba(18,20,23,.45);border:1px solid rgba(245,247,242,.1);border-radius:16px;padding:12px
    }
    .stat b{display:block;color:var(--accent);font-size:22px;line-height:1.1}
    .stat span{font-size:12px;color:#BBC4B8}

    main{background:var(--soft)}
    .section{padding:72px 0}
    .section-tight{padding:46px 0}
    .section-head{
      display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:24px
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;color:#0D7B5B;background:rgba(34,230,167,.14);
      border:1px solid rgba(34,230,167,.32);padding:7px 12px;border-radius:999px;font-weight:900;font-size:13px
    }
    h2{font-size:clamp(28px,3.5vw,38px);line-height:1.16;font-weight:950;letter-spacing:-.03em;margin:10px 0 0}
    .section-desc{color:var(--muted);max-width:680px;margin:10px 0 0}
    .filter-panel{
      border:1px solid var(--line);background:#FAF8EF;border-radius:var(--radius-lg);
      box-shadow:var(--shadow-soft);padding:22px
    }
    .filter-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}
    .filter-row:last-child{margin-bottom:0}
    .filter-label{font-weight:950;min-width:74px;color:#2A2D29}
    .filter-tag{
      border:1px solid #D8D4C5;background:#fff;color:#42463F;border-radius:999px;
      padding:9px 14px;font-weight:800;transition:.2s ease
    }
    .filter-tag:hover,.filter-tag.active{background:var(--accent);color:#111;border-color:var(--accent);transform:translateY(-1px)}

    .issue-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
    .issue-card{
      background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px;
      box-shadow:var(--shadow-soft);display:grid;grid-template-columns:58px 1fr;gap:16px;
      transition:.22s ease;position:relative;overflow:hidden
    }
    .issue-card:before{
      content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:transparent;transition:.22s ease
    }
    .issue-card:hover{transform:translateY(-3px);border-color:rgba(34,230,167,.62);box-shadow:0 16px 34px rgba(18,20,23,.12)}
    .issue-card:hover:before{background:var(--accent)}
    .issue-no{
      width:58px;height:58px;border-radius:18px;background:#121417;color:var(--accent);
      display:grid;place-items:center;font-weight:950;font-size:18px
    }
    .issue-card h3{font-size:20px;line-height:1.25;font-weight:950;margin:0 0 8px}
    .issue-card p{color:var(--muted);margin:0 0 14px}
    .tag-line{display:flex;gap:8px;flex-wrap:wrap}
    .badge-soft,.badge-warn,.badge-dark{
      display:inline-flex;align-items:center;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:900
    }
    .badge-soft{background:rgba(34,230,167,.14);color:#087956;border:1px solid rgba(34,230,167,.28)}
    .badge-warn{background:rgba(255,181,71,.18);color:#865510;border:1px solid rgba(255,181,71,.36)}
    .badge-dark{background:#121417;color:#F5F7F2;border:1px solid rgba(18,20,23,.18)}

    .featured-wrap{
      display:grid;grid-template-columns:1.04fr .96fr;gap:20px;align-items:stretch
    }
    .feature-large,.mini-list,.safe-card,.cta-card,.faq-box{
      border-radius:var(--radius-lg);border:1px solid var(--line);box-shadow:var(--shadow-soft)
    }
    .feature-large{
      background:#121417;color:#F5F7F2;padding:28px;position:relative;overflow:hidden
    }
    .feature-large:after{
      content:"";position:absolute;right:-60px;top:-60px;width:210px;height:210px;border-radius:50%;
      background:rgba(34,230,167,.18)
    }
    .feature-large h3{font-size:30px;line-height:1.16;font-weight:950;margin:14px 0 12px;position:relative}
    .feature-large p{color:#D4DAD0;position:relative}
    .check-strip{display:grid;gap:10px;margin-top:22px;position:relative}
    .check-row{
      display:flex;align-items:center;justify-content:space-between;gap:12px;
      background:rgba(245,247,242,.06);border:1px solid rgba(245,247,242,.1);
      border-radius:16px;padding:12px 14px
    }
    .check-row strong{font-weight:900}
    .status-ok{color:var(--accent);font-weight:950}
    .status-warn{color:var(--warning);font-weight:950}
    .mini-list{background:#fff;padding:16px;display:grid;gap:12px}
    .mini-item{
      display:flex;gap:13px;padding:14px;border-radius:18px;border:1px solid #EEEADF;
      background:#FAF8EF;transition:.2s ease
    }
    .mini-item:hover{background:#fff;border-color:rgba(255,181,71,.55);transform:translateX(3px)}
    .mini-icon{
      flex:0 0 40px;width:40px;height:40px;border-radius:14px;background:rgba(255,181,71,.2);
      display:grid;place-items:center;font-weight:950;color:#7D4E08
    }
    .mini-item h3{font-size:17px;font-weight:950;margin:0 0 5px}
    .mini-item p{font-size:14px;color:var(--muted);margin:0}

    .safe-section{background:#ECE8DA}
    .safe-card{
      background:linear-gradient(135deg,#FFFFFF,#FAF8EF);padding:26px;
      display:grid;grid-template-columns:1fr 320px;gap:22px;align-items:center
    }
    .safe-list{display:grid;gap:12px;margin-top:18px}
    .safe-list li{
      list-style:none;display:flex;gap:10px;align-items:flex-start;color:#4D514B
    }
    .safe-list li:before{
      content:"!";flex:0 0 24px;width:24px;height:24px;border-radius:50%;
      display:grid;place-items:center;background:var(--warning);color:#111;font-weight:950;line-height:1
    }
    .matrix{
      background:#121417;color:#F5F7F2;border-radius:24px;padding:18px;border:1px solid rgba(34,230,167,.22)
    }
    .matrix-title{font-weight:950;margin-bottom:12px}
    .matrix-row{
      display:grid;grid-template-columns:1fr auto;gap:10px;padding:11px 0;
      border-bottom:1px solid rgba(245,247,242,.1)
    }
    .matrix-row:last-child{border-bottom:0}

    .faq-box{background:#fff;overflow:hidden}
    .faq-item{border-bottom:1px solid #EEEADF}
    .faq-item:last-child{border-bottom:0}
    .faq-question{
      width:100%;background:#fff;color:#1E211D;text-align:left;padding:20px 22px;
      display:flex;justify-content:space-between;gap:18px;font-weight:950;font-size:17px
    }
    .faq-question:hover{background:#FAF8EF}
    .faq-question .arrow{transition:.2s ease;color:#0E8C66}
    .faq-item.open .arrow{transform:rotate(45deg)}
    .faq-answer{
      display:none;padding:0 22px 20px;color:var(--muted);background:#fff
    }
    .faq-item.open .faq-answer{display:block}
    .faq-item.open{box-shadow:inset 4px 0 0 var(--accent)}

    .cta-section{padding:42px 0 86px}
    .cta-card{
      background:
      radial-gradient(circle at 12% 20%,rgba(34,230,167,.24),transparent 28%),
      linear-gradient(135deg,#121417,#1A1E1B);
      color:#F5F7F2;padding:34px;display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;
      border-color:rgba(245,247,242,.12);box-shadow:var(--shadow-dark)
    }
    .cta-card h2{margin:0;font-size:clamp(28px,4vw,42px)}
    .cta-card p{color:#D9DED5;max-width:720px;margin:12px 0 0}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}
    .trust-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}

    .site-footer{background:#0F1113;color:#DDE4DA;padding:54px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:28px}
    .footer-brand{font-size:20px;font-weight:950;color:#F5F7F2;margin-bottom:10px}
    .site-footer p{color:#AEB7AC;margin:0;max-width:560px}
    .footer-title{font-weight:950;color:#F5F7F2;margin-bottom:12px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#AEB7AC}
    .footer-links a:hover{color:var(--accent);transform:translateX(2px)}
    .copyright{
      margin-top:34px;padding-top:18px;border-top:1px solid rgba(245,247,242,.1);
      display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:#8E988D;font-size:14px
    }
    .mobile-bottom{
      display:none;position:fixed;left:12px;right:12px;bottom:12px;z-index:60;
      background:rgba(18,20,23,.94);border:1px solid rgba(34,230,167,.26);
      border-radius:22px;padding:10px;box-shadow:0 18px 38px rgba(0,0,0,.34);
      align-items:center;justify-content:space-between;gap:10px
    }
    .bottom-title{color:#F5F7F2;font-weight:950;font-size:13px;line-height:1.25}
    .bottom-sub{color:#AEB7AC;font-size:12px}
    .bottom-btn{background:var(--accent);color:#111;font-weight:950;border-radius:16px;padding:11px 13px;white-space:nowrap}

    @media (max-width:1024px){
      .nav-left,.nav-right{display:none}
      .mobile-toggle{display:block}
      .nav-wrap{grid-template-columns:48px 1fr 48px;min-height:70px}
      .brand{justify-self:center;font-size:16px}
      .mobile-menu.show{display:grid}
      .profile-row{grid-template-columns:82px 1fr;align-items:end}
      .follow-box{grid-column:1 / -1;min-width:0}
      .featured-wrap,.safe-card,.cta-card{grid-template-columns:1fr}
      .cta-actions{justify-content:flex-start}
    }
    @media (max-width:768px){
      .container{padding:0 16px}
      .strip-inner{justify-content:flex-start;gap:10px;padding:8px 0}
      .strip-sep{display:none}
      .creator-hero{padding:28px 0 32px;background:linear-gradient(180deg,#121417 0%,#171B18 82%,#F6F4EC 82%)}
      .hero-cover{min-height:126px}
      .hero-cover:after{left:18px;right:18px;font-size:12px}
      .profile-row{padding:0 18px 22px;margin-top:-38px;gap:14px}
      .avatar{width:78px;height:78px;border-radius:20px;font-size:20px}
      .hero-summary{font-size:15px}
      .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%}
      .section{padding:52px 0}
      .section-head{display:block}
      .issue-grid{grid-template-columns:1fr}
      .issue-card{grid-template-columns:48px 1fr;padding:16px}
      .issue-no{width:48px;height:48px;border-radius:15px}
      .filter-panel{padding:16px;border-radius:22px}
      .filter-row{align-items:flex-start}
      .filter-label{width:100%;min-width:0}
      .feature-large,.safe-card,.cta-card{padding:22px;border-radius:24px}
      .footer-grid{grid-template-columns:1fr}
      .mobile-bottom{display:flex}
      body{padding-bottom:82px}
    }
    @media (max-width:520px){
      .brand span:last-child{max-width:210px;overflow:hidden;text-overflow:ellipsis}
      h1{font-size:31px}
      .stat-grid{grid-template-columns:1fr 1fr}
      .filter-tag{padding:8px 11px;font-size:13px}
      .mini-item{padding:12px}
      .copyright{font-size:13px}
    }

/* roulang page: category2 */
:root{
      --ink:#121417;
      --ink-2:#1b1f1d;
      --paper:#f6f4ec;
      --paper-2:#ece8da;
      --card:#ffffff;
      --text:#f5f7f2;
      --muted:#aeb6ad;
      --dark-muted:#5e665f;
      --line:rgba(34,230,167,.22);
      --line-soft:#e1ded0;
      --green:#22e6a7;
      --green-2:#98ffd9;
      --amber:#ffb547;
      --danger:#ff7c65;
      --radius-sm:12px;
      --radius:18px;
      --radius-lg:28px;
      --shadow-dark:0 18px 46px rgba(0,0,0,.32);
      --shadow-soft:0 12px 30px rgba(18,20,23,.09);
      --max:1220px;
      --font:PingFang SC,Microsoft YaHei,Noto Sans SC,Arial,sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--ink);
      background:var(--paper);
      line-height:1.7;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    ::selection{background:var(--green);color:var(--ink)}
    .container{width:min(var(--max),calc(100% - 40px));margin:0 auto}
    .top-strip{
      background:#0d0f0e;
      color:var(--text);
      border-bottom:1px solid rgba(245,247,242,.08);
      font-size:14px;
    }
    .top-strip .container{
      min-height:42px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      overflow:hidden;
    }
    .ticker{
      display:flex;
      align-items:center;
      gap:12px;
      white-space:nowrap;
      color:#dfe7df;
    }
    .ticker-dot{
      width:9px;height:9px;border-radius:50%;
      background:var(--green);
      box-shadow:0 0 0 5px rgba(34,230,167,.12);
      flex:0 0 auto;
    }
    .strip-tags{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
    .strip-tags span{
      border:1px solid rgba(34,230,167,.24);
      color:#dbfff2;
      padding:3px 10px;
      border-radius:999px;
      background:rgba(34,230,167,.08);
      font-size:13px;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(18,20,23,.94);
      backdrop-filter:blur(12px);
      border-bottom:1px solid rgba(245,247,242,.1);
    }
    .nav-wrap{
      min-height:78px;
      display:grid;
      grid-template-columns:1fr auto 1fr;
      align-items:center;
      gap:24px;
      position:relative;
    }
    .nav-left,.nav-right{
      display:flex;
      align-items:center;
      gap:14px;
    }
    .nav-left{justify-content:flex-end}
    .nav-right{justify-content:flex-start}
    .nav-link{
      color:#dfe5de;
      font-size:15px;
      font-weight:700;
      padding:9px 13px;
      border-radius:999px;
      transition:.22s ease;
      border:1px solid transparent;
      white-space:nowrap;
    }
    .nav-link:hover,.nav-link:focus{
      color:var(--green-2);
      border-color:rgba(34,230,167,.28);
      background:rgba(34,230,167,.08);
      outline:none;
    }
    .nav-link.active{
      color:var(--ink);
      background:var(--green);
      box-shadow:0 8px 22px rgba(34,230,167,.18);
    }
    .brand{
      color:var(--text);
      display:flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      font-weight:900;
      letter-spacing:-.02em;
      font-size:18px;
      padding:10px 14px;
      border:1px solid rgba(245,247,242,.12);
      background:#171a18;
      border-radius:999px;
      box-shadow:var(--shadow-dark);
      white-space:nowrap;
    }
    .brand-mark{
      width:22px;height:22px;border-radius:7px;
      background:
        linear-gradient(90deg,transparent 45%,rgba(18,20,23,.55) 45% 55%,transparent 55%),
        linear-gradient(135deg,var(--green),var(--amber));
      box-shadow:0 0 18px rgba(34,230,167,.42);
    }
    .nav-cta{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      color:var(--ink);
      background:var(--green);
      padding:10px 16px;
      border-radius:999px;
      font-weight:900;
      border:1px solid rgba(152,255,217,.5);
      box-shadow:0 10px 26px rgba(34,230,167,.2);
      transition:.22s ease;
      white-space:nowrap;
    }
    .nav-cta:hover,.nav-cta:focus{
      transform:translateY(-2px);
      filter:brightness(1.05);
      outline:2px solid rgba(34,230,167,.25);
      outline-offset:3px;
    }
    .mobile-toggle{
      display:none;
      width:44px;height:44px;
      border-radius:14px;
      border:1px solid rgba(245,247,242,.14);
      background:#1b1f1d;
      color:var(--text);
      font-size:22px;
    }
    .mobile-menu{
      display:none;
      padding:0 0 16px;
      border-top:1px solid rgba(245,247,242,.08);
    }
    .mobile-menu a{
      display:block;
      color:var(--text);
      padding:13px 16px;
      margin-top:10px;
      background:#1b1f1d;
      border:1px solid rgba(245,247,242,.1);
      border-radius:16px;
      font-weight:800;
    }
    .mobile-menu a.active{
      background:var(--green);
      color:var(--ink);
    }
    main{overflow:hidden}
    .hero{
      background:
        radial-gradient(circle at 18% 18%,rgba(34,230,167,.16),transparent 32%),
        radial-gradient(circle at 86% 20%,rgba(255,181,71,.18),transparent 28%),
        linear-gradient(180deg,#121417 0%,#171a18 78%,var(--paper) 78%);
      color:var(--text);
      padding:78px 0 64px;
      position:relative;
    }
    .hero:before{
      content:"";
      position:absolute;inset:0;
      background-image:
        linear-gradient(rgba(245,247,242,.035) 1px,transparent 1px),
        linear-gradient(90deg,rgba(245,247,242,.035) 1px,transparent 1px);
      background-size:34px 34px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 82%);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      display:grid;
      grid-template-columns:minmax(0,1.02fr) minmax(360px,.78fr);
      gap:34px;
      align-items:stretch;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#ccfff0;
      background:rgba(34,230,167,.1);
      border:1px solid rgba(34,230,167,.28);
      padding:7px 12px;
      border-radius:999px;
      font-size:14px;
      font-weight:800;
      margin-bottom:18px;
    }
    .eyebrow:before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:var(--green);
      box-shadow:0 0 0 5px rgba(34,230,167,.12);
    }
    h1{
      margin:0;
      font-size:clamp(34px,5.1vw,58px);
      line-height:1.08;
      letter-spacing:-.05em;
      font-weight:900;
      max-width:850px;
    }
    .hero-summary{
      margin:22px 0 0;
      max-width:770px;
      color:#dce3dc;
      font-size:18px;
    }
    .group-box{
      margin-top:28px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      max-width:780px;
      padding:16px;
      border-radius:22px;
      background:rgba(245,247,242,.06);
      border:1px solid rgba(245,247,242,.13);
    }
    .group-avatars{display:flex;align-items:center;gap:12px}
    .avatars{display:flex}
    .avatar{
      width:34px;height:34px;border-radius:50%;
      display:grid;place-items:center;
      background:#26302b;
      color:var(--green-2);
      border:2px solid #121417;
      margin-left:-8px;
      font-size:13px;
      font-weight:900;
    }
    .avatar:first-child{margin-left:0}
    .group-text strong{display:block;color:#fff;font-size:15px}
    .group-text span{display:block;color:#aeb8b1;font-size:13px}
    .hero-actions{
      display:flex;
      gap:14px;
      flex-wrap:wrap;
      margin-top:24px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:50px;
      padding:13px 20px;
      border-radius:999px;
      border:1px solid transparent;
      font-size:16px;
      font-weight:900;
      transition:.22s ease;
      user-select:none;
    }
    .btn-primary{
      background:var(--green);
      color:var(--ink);
      box-shadow:0 14px 30px rgba(34,230,167,.24);
    }
    .btn-primary:hover,.btn-primary:focus{
      transform:translateY(-3px);
      filter:brightness(1.04);
      box-shadow:0 18px 38px rgba(34,230,167,.3);
      outline:2px solid rgba(34,230,167,.3);
      outline-offset:3px;
    }
    .btn-secondary{
      color:var(--text);
      background:rgba(245,247,242,.06);
      border-color:rgba(245,247,242,.18);
    }
    .btn-secondary:hover,.btn-secondary:focus{
      border-color:rgba(34,230,167,.55);
      color:var(--green-2);
      transform:translateY(-2px);
      outline:none;
    }
    .btn-amber{
      color:var(--ink);
      background:var(--amber);
      border-color:rgba(255,181,71,.75);
      box-shadow:0 12px 28px rgba(255,181,71,.22);
    }
    .btn-outline-dark{
      color:var(--ink);
      background:transparent;
      border-color:#cfcbbd;
    }
    .btn-outline-dark:hover,.btn-outline-dark:focus{
      border-color:var(--green);
      background:rgba(34,230,167,.12);
      transform:translateY(-2px);
      outline:none;
    }
    .hero-note{
      margin-top:20px;
      display:flex;
      gap:10px;
      flex-wrap:wrap;
    }
    .hero-note span,.tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 11px;
      border-radius:999px;
      font-size:13px;
      font-weight:800;
      border:1px solid rgba(245,247,242,.12);
      color:#dde8df;
      background:rgba(245,247,242,.055);
    }
    .panel{
      background:#1b1f1d;
      border:1px solid rgba(245,247,242,.12);
      border-radius:var(--radius-lg);
      padding:24px;
      box-shadow:var(--shadow-dark);
      position:relative;
      overflow:hidden;
    }
    .panel:after{
      content:"UTF-8  GBK  字体  轨道";
      position:absolute;
      right:-24px;bottom:10px;
      font-weight:900;
      letter-spacing:.18em;
      color:rgba(245,247,242,.04);
      font-size:34px;
      transform:rotate(-8deg);
      pointer-events:none;
    }
    .panel-head{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:18px;
    }
    .panel-title{font-weight:900;font-size:20px;color:#fff}
    .status-badge{
      display:inline-flex;
      align-items:center;
      padding:5px 10px;
      border-radius:999px;
      font-size:12px;
      font-weight:900;
      color:var(--ink);
      background:var(--green);
    }
    .setting-row{
      position:relative;
      display:grid;
      grid-template-columns:34px 1fr auto;
      gap:12px;
      align-items:center;
      padding:13px 0;
      border-bottom:1px solid rgba(245,247,242,.08);
      z-index:1;
    }
    .setting-row:last-child{border-bottom:0}
    .step-no{
      width:32px;height:32px;border-radius:11px;
      display:grid;place-items:center;
      color:var(--ink);
      background:var(--green);
      font-weight:900;
    }
    .setting-row strong{display:block;color:#fff;font-size:15px}
    .setting-row span{display:block;color:#aeb6ad;font-size:13px}
    .mini-state{
      color:#ffe2ad;
      border:1px solid rgba(255,181,71,.32);
      background:rgba(255,181,71,.08);
      border-radius:999px;
      padding:4px 9px;
      font-size:12px;
      font-weight:900;
      white-space:nowrap;
    }
    .section{
      padding:74px 0;
      background:var(--paper);
    }
    .section.dark{
      background:#121417;
      color:var(--text);
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:28px;
      margin-bottom:28px;
    }
    .section-kicker{
      color:#057a58;
      font-weight:900;
      letter-spacing:.04em;
      margin-bottom:8px;
      font-size:14px;
    }
    .dark .section-kicker{color:var(--green-2)}
    h2{
      margin:0;
      font-size:clamp(28px,3.2vw,40px);
      line-height:1.18;
      letter-spacing:-.04em;
      font-weight:900;
    }
    .section-desc{
      margin:10px 0 0;
      color:var(--dark-muted);
      max-width:680px;
      font-size:16px;
    }
    .dark .section-desc{color:#b9c2ba}
    .quick-filter{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .filter-chip{
      border:1px solid #d8d3c4;
      background:#fffdf7;
      color:#353a36;
      border-radius:999px;
      padding:8px 12px;
      font-size:14px;
      font-weight:900;
      transition:.2s ease;
    }
    .filter-chip.active,.filter-chip:hover{
      background:var(--green);
      border-color:var(--green);
      color:var(--ink);
      transform:translateY(-1px);
    }
    .timeline{
      display:grid;
      grid-template-columns:repeat(5,1fr);
      gap:14px;
      counter-reset:steps;
    }
    .timeline-card{
      background:#fffdf7;
      border:1px solid var(--line-soft);
      border-radius:22px;
      padding:20px;
      min-height:232px;
      box-shadow:var(--shadow-soft);
      transition:.24s ease;
      position:relative;
      overflow:hidden;
    }
    .timeline-card:hover{
      transform:translateY(-4px);
      border-color:rgba(34,230,167,.65);
      box-shadow:0 18px 38px rgba(18,20,23,.13);
    }
    .timeline-card:before{
      counter-increment:steps;
      content:"0" counter(steps);
      display:inline-grid;
      place-items:center;
      width:42px;height:42px;
      border-radius:14px;
      color:var(--ink);
      background:var(--green);
      font-weight:900;
      margin-bottom:16px;
    }
    .timeline-card h3{
      margin:0 0 8px;
      font-size:20px;
      line-height:1.25;
      letter-spacing:-.02em;
    }
    .timeline-card p{
      margin:0;
      color:var(--dark-muted);
      font-size:15px;
    }
    .progress-line{
      margin-top:18px;
      height:6px;
      border-radius:999px;
      background:#e7e2d4;
      overflow:hidden;
    }
    .progress-line i{
      display:block;
      height:100%;
      background:linear-gradient(90deg,var(--green),var(--amber));
      border-radius:999px;
    }
    .scenario-layout{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:22px;
      align-items:start;
    }
    .scene-cover{
      background:#171a18;
      color:var(--text);
      border:1px solid rgba(245,247,242,.12);
      border-radius:var(--radius-lg);
      padding:26px;
      box-shadow:var(--shadow-dark);
      position:sticky;
      top:104px;
    }
    .scene-cover .big-code{
      margin:22px 0;
      padding:18px;
      border-radius:18px;
      background:#0f1110;
      color:#d6ffeF;
      border:1px dashed rgba(34,230,167,.3);
      font-weight:900;
      letter-spacing:.05em;
      line-height:1.9;
    }
    .scene-cover p{color:#c1cbc4;margin:0}
    .scene-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:16px;
    }
    .scene-card{
      background:#fffdf7;
      border:1px solid var(--line-soft);
      border-radius:22px;
      padding:22px;
      box-shadow:var(--shadow-soft);
      transition:.24s ease;
    }
    .scene-card:hover{
      transform:translateY(-3px);
      border-color:var(--amber);
    }
    .scene-card .icon{
      width:46px;height:46px;
      border-radius:16px;
      display:grid;place-items:center;
      background:rgba(34,230,167,.14);
      color:#087956;
      font-size:22px;
      margin-bottom:14px;
    }
    .scene-card h3{
      margin:0 0 8px;
      font-size:21px;
      letter-spacing:-.02em;
    }
    .scene-card p{margin:0;color:var(--dark-muted);font-size:15px}
    .scene-card ul{
      margin:14px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:8px;
      color:#363c37;
      font-size:14px;
      font-weight:700;
    }
    .scene-card li{
      padding-left:18px;
      position:relative;
    }
    .scene-card li:before{
      content:"";
      position:absolute;left:0;top:.7em;
      width:7px;height:7px;border-radius:50%;
      background:var(--green);
    }
    .related-wrap{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:18px;
    }
    .feature-card{
      min-height:330px;
      background:
        linear-gradient(135deg,rgba(34,230,167,.18),transparent 42%),
        #1b1f1d;
      border:1px solid rgba(245,247,242,.12);
      border-radius:var(--radius-lg);
      padding:28px;
      box-shadow:var(--shadow-dark);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      overflow:hidden;
      position:relative;
    }
    .feature-card:before{
      content:"乱码 / 编码 / 字体 / 设置";
      position:absolute;
      right:-40px;
      top:42px;
      transform:rotate(18deg);
      color:rgba(245,247,242,.05);
      font-size:42px;
      font-weight:900;
      white-space:nowrap;
    }
    .feature-card h3{
      position:relative;
      margin:12px 0;
      font-size:30px;
      line-height:1.2;
      letter-spacing:-.04em;
    }
    .feature-card p{position:relative;color:#c5cec6;margin:0;max-width:560px}
    .small-list{
      display:grid;
      gap:14px;
    }
    .related-item{
      background:#1b1f1d;
      border:1px solid rgba(245,247,242,.12);
      border-radius:20px;
      padding:18px;
      transition:.24s ease;
    }
    .related-item:hover{
      border-color:rgba(34,230,167,.58);
      transform:translateX(4px);
    }
    .related-item h3{
      margin:8px 0 6px;
      font-size:19px;
      color:#fff;
    }
    .related-item p{margin:0;color:#b9c2ba;font-size:14px}
    .tag-row{display:flex;gap:8px;flex-wrap:wrap}
    .tag.green{background:rgba(34,230,167,.12);border-color:rgba(34,230,167,.32);color:#bdffeb}
    .tag.amber{background:rgba(255,181,71,.1);border-color:rgba(255,181,71,.3);color:#ffe0a7}
    .safe-card{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:24px;
      align-items:center;
      background:#fffdf7;
      border:1px solid var(--line-soft);
      border-radius:var(--radius-lg);
      padding:28px;
      box-shadow:var(--shadow-soft);
    }
    .safe-alert{
      background:#171a18;
      color:var(--text);
      border-radius:24px;
      padding:24px;
      border:1px solid rgba(255,181,71,.28);
    }
    .safe-alert strong{
      display:block;
      color:#ffe0a7;
      font-size:22px;
      margin-bottom:10px;
    }
    .safe-alert p{margin:0;color:#c8d0c9}
    .safe-list{
      display:grid;
      gap:12px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .safe-list li{
      display:grid;
      grid-template-columns:34px 1fr;
      gap:12px;
      align-items:start;
      padding:14px;
      border:1px solid #ece6d8;
      border-radius:18px;
      background:#faf8ef;
    }
    .safe-list b{
      width:34px;height:34px;border-radius:12px;
      display:grid;place-items:center;
      background:rgba(255,181,71,.18);
      color:#8a5700;
    }
    .safe-list strong{display:block;margin-bottom:2px}
    .safe-list span{display:block;color:var(--dark-muted);font-size:14px}
    .faq-wrap{
      display:grid;
      grid-template-columns:.72fr 1.28fr;
      gap:30px;
      align-items:start;
    }
    .faq-aside{
      background:#fffdf7;
      border:1px solid var(--line-soft);
      border-radius:var(--radius-lg);
      padding:24px;
      box-shadow:var(--shadow-soft);
    }
    .faq-aside p{color:var(--dark-muted);margin:10px 0 0}
    .faq-list{display:grid;gap:12px}
    .faq-item{
      background:#fffdf7;
      border:1px solid var(--line-soft);
      border-radius:20px;
      overflow:hidden;
      box-shadow:0 6px 16px rgba(18,20,23,.05);
      transition:.2s ease;
    }
    .faq-item.active{
      border-color:rgba(34,230,167,.75);
      box-shadow:0 12px 24px rgba(18,20,23,.08);
    }
    .faq-question{
      width:100%;
      border:0;
      background:transparent;
      color:var(--ink);
      padding:18px 20px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      text-align:left;
      font-weight:900;
      font-size:17px;
    }
    .faq-question:focus{outline:2px solid rgba(34,230,167,.35);outline-offset:-4px}
    .faq-arrow{
      width:26px;height:26px;
      display:grid;place-items:center;
      border-radius:50%;
      background:rgba(34,230,167,.12);
      transition:.22s ease;
      flex:0 0 auto;
    }
    .faq-item.active .faq-arrow{transform:rotate(45deg);background:var(--green)}
    .faq-answer{
      display:none;
      padding:0 20px 20px;
      color:var(--dark-muted);
    }
    .faq-item.active .faq-answer{display:block}
    .cta{
      padding:72px 0;
      background:
        radial-gradient(circle at 15% 20%,rgba(34,230,167,.16),transparent 30%),
        radial-gradient(circle at 85% 12%,rgba(255,181,71,.16),transparent 28%),
        #121417;
      color:var(--text);
    }
    .cta-card{
      border:1px solid rgba(245,247,242,.12);
      border-radius:32px;
      padding:34px;
      background:#1b1f1d;
      box-shadow:var(--shadow-dark);
      display:grid;
      grid-template-columns:1.1fr auto;
      gap:24px;
      align-items:center;
    }
    .cta-card h2{font-size:clamp(28px,3.4vw,44px)}
    .cta-card p{color:#c2ccc4;margin:12px 0 0;max-width:720px}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}
    .trust-badges{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      margin-top:18px;
    }
    .trust-badges span{
      color:#dffff3;
      border:1px solid rgba(34,230,167,.28);
      background:rgba(34,230,167,.08);
      border-radius:999px;
      padding:6px 11px;
      font-weight:800;
      font-size:13px;
    }
    .site-footer{
      background:#0d0f0e;
      color:#dce4dd;
      padding:54px 0 26px;
      border-top:1px solid rgba(245,247,242,.1);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.25fr .75fr .75fr;
      gap:34px;
      margin-bottom:30px;
    }
    .footer-brand{
      font-size:20px;
      font-weight:900;
      color:#fff;
      margin-bottom:10px;
    }
    .site-footer p{
      margin:0;
      color:#aeb8b1;
      max-width:520px;
      font-size:14px;
    }
    .footer-title{
      color:#fff;
      font-weight:900;
      margin-bottom:12px;
    }
    .footer-links{
      display:grid;
      gap:9px;
    }
    .footer-links a{
      color:#aeb8b1;
      font-size:14px;
      transition:.2s ease;
    }
    .footer-links a:hover,.footer-links a:focus{
      color:var(--green-2);
      outline:none;
    }
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:14px;
      flex-wrap:wrap;
      padding-top:22px;
      border-top:1px solid rgba(245,247,242,.1);
      color:#8f9992;
      font-size:13px;
    }
    .mobile-bottom{
      display:none;
      position:fixed;
      left:0;right:0;bottom:0;
      z-index:60;
      background:rgba(18,20,23,.95);
      border-top:1px solid rgba(245,247,242,.12);
      padding:10px 14px;
      backdrop-filter:blur(12px);
    }
    .mobile-bottom-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
    }
    .mobile-bottom strong{
      color:#fff;
      display:block;
      font-size:14px;
      line-height:1.2;
    }
    .mobile-bottom span{
      color:#aeb8b1;
      font-size:12px;
    }
    .back-top{
      position:fixed;
      right:22px;
      bottom:22px;
      width:46px;height:46px;
      border-radius:16px;
      border:1px solid rgba(18,20,23,.12);
      background:var(--green);
      color:var(--ink);
      font-weight:900;
      display:grid;
      place-items:center;
      box-shadow:0 12px 24px rgba(18,20,23,.16);
      opacity:0;
      pointer-events:none;
      transition:.2s ease;
      z-index:55;
    }
    .back-top.show{opacity:1;pointer-events:auto}
    .back-top:hover{transform:translateY(-3px)}
    @media (max-width:1100px){
      .nav-wrap{grid-template-columns:auto 1fr auto}
      .nav-left,.nav-right{display:none}
      .mobile-toggle{display:block}
      .brand{justify-self:center;font-size:16px}
      .mobile-menu.open{display:block}
      .hero-grid,.scenario-layout,.related-wrap,.safe-card,.faq-wrap,.cta-card{grid-template-columns:1fr}
      .scene-cover{position:relative;top:auto}
      .timeline{grid-template-columns:repeat(2,1fr)}
      .cta-actions{justify-content:flex-start}
    }
    @media (max-width:760px){
      .container{width:min(100% - 28px,var(--max))}
      .top-strip .container{align-items:flex-start;flex-direction:column;padding:10px 0;gap:8px}
      .strip-tags{justify-content:flex-start}
      .hero{padding:50px 0 44px}
      .hero-grid{gap:20px}
      .group-box{align-items:flex-start;flex-direction:column}
      .hero-actions .btn{width:100%}
      .panel{padding:18px;border-radius:22px}
      .setting-row{grid-template-columns:32px 1fr;align-items:start}
      .mini-state{grid-column:2;justify-self:start}
      .section{padding:54px 0}
      .section-head{display:block}
      .quick-filter{justify-content:flex-start;margin-top:16px}
      .timeline{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px}
      .timeline-card{min-width:78%;scroll-snap-align:start}
      .scene-grid{grid-template-columns:1fr}
      .feature-card{min-height:280px}
      .footer-grid{grid-template-columns:1fr}
      .mobile-bottom{display:block}
      body{padding-bottom:72px}
      .back-top{bottom:86px}
    }
    @media (max-width:520px){
      .brand span:last-child{max-width:190px;overflow:hidden;text-overflow:ellipsis}
      h1{font-size:32px}
      .hero-summary{font-size:16px}
      .section-desc{font-size:15px}
      .cta-card{padding:24px;border-radius:24px}
      .safe-card{padding:18px}
      .faq-question{font-size:16px;padding:16px}
      .faq-answer{padding:0 16px 18px}
    }