/* roulang page: index */
:root {
      --bg: #0b0f1c;
      --bg-soft: #111827;
      --surface: #151b2e;
      --surface-2: #1d253a;
      --card: rgba(255, 255, 255, 0.075);
      --card-strong: rgba(255, 255, 255, 0.12);
      --text: #f8fafc;
      --muted: #a7b0c5;
      --subtle: #74809a;
      --line: rgba(255, 255, 255, 0.12);
      --line-strong: rgba(255, 255, 255, 0.2);
      --primary: #ff4d8d;
      --primary-2: #ff7a59;
      --secondary: #7c5cff;
      --accent: #34d3b4;
      --warning: #ffd166;
      --success: #55e09f;
      --danger: #ff6b6b;
      --shadow: 0 22px 70px rgba(0, 0, 0, 0.35);
      --shadow-soft: 0 14px 40px rgba(0, 0, 0, 0.22);
      --radius-xl: 30px;
      --radius-lg: 22px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --container: 1180px;
      --font: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

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

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

    body {
      min-height: 100vh;
      font-family: var(--font);
      line-height: 1.75;
      color: var(--text);
      background:
        radial-gradient(circle at 10% -10%, rgba(255, 77, 141, 0.28), transparent 34%),
        radial-gradient(circle at 95% 6%, rgba(124, 92, 255, 0.26), transparent 28%),
        linear-gradient(180deg, #090d18 0%, #101628 42%, #0b0f1c 100%);
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
      background-size: 44px 44px;
      mask-image: linear-gradient(180deg, rgba(0,0,0,0.9), transparent 72%);
      z-index: -1;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

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

    button, input {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
    }

    input {
      color: var(--text);
      border: 1px solid var(--line);
      outline: none;
    }

    input:focus, button:focus-visible, a:focus-visible, summary:focus-visible {
      outline: 3px solid rgba(52, 211, 180, 0.42);
      outline-offset: 3px;
      border-radius: 12px;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      backdrop-filter: blur(18px);
      background: rgba(9, 13, 24, 0.78);
      border-bottom: 1px solid var(--line);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 16px 0;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
      font-weight: 900;
      letter-spacing: -0.03em;
    }

    .brand-mark {
      width: 44px;
      height: 44px;
      display: grid;
      place-items: center;
      border-radius: 16px;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      box-shadow: 0 14px 34px rgba(255, 77, 141, 0.28);
      color: #fff;
      font-size: 22px;
      flex: 0 0 auto;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      gap: 1px;
      min-width: 0;
    }

    .brand-name {
      font-size: 18px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .brand-note {
      color: var(--muted);
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0;
    }

    .nav-wrap {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .icon-nav {
      display: grid;
      grid-template-columns: repeat(1, minmax(88px, 1fr));
      gap: 10px;
    }

    .nav-item {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 42px;
      padding: 10px 14px;
      border: 1px solid var(--line);
      border-radius: 15px;
      background: rgba(255, 255, 255, 0.06);
      color: var(--muted);
      font-size: 14px;
      font-weight: 800;
      transition: transform .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
    }

    .nav-item:hover,
    .nav-item.active {
      color: var(--text);
      background: rgba(255, 77, 141, 0.16);
      border-color: rgba(255, 77, 141, 0.42);
      transform: translateY(-1px);
    }

    .nav-ico {
      width: 24px;
      height: 24px;
      display: grid;
      place-items: center;
      border-radius: 10px;
      background: linear-gradient(135deg, rgba(255, 77, 141, 0.35), rgba(124, 92, 255, 0.28));
      color: #fff;
      font-size: 13px;
    }

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

    .age-pill {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 9px 12px;
      border: 1px solid rgba(52, 211, 180, 0.32);
      border-radius: 999px;
      background: rgba(52, 211, 180, 0.09);
      color: #dffcf5;
      font-size: 13px;
      font-weight: 800;
      white-space: nowrap;
    }

    .menu-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border-radius: 14px;
      color: var(--text);
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid var(--line);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 48px;
      padding: 12px 20px;
      border-radius: 999px;
      font-weight: 900;
      letter-spacing: -0.01em;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
      user-select: none;
      white-space: nowrap;
    }

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

    .btn:active {
      transform: translateY(0);
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow: 0 18px 38px rgba(255, 77, 141, 0.28);
    }

    .btn-primary:hover {
      box-shadow: 0 24px 46px rgba(255, 77, 141, 0.38);
    }

    .btn-secondary {
      color: var(--text);
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid var(--line-strong);
    }

    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.13);
      border-color: rgba(255, 255, 255, 0.3);
      box-shadow: var(--shadow-soft);
    }

    .btn-ghost {
      min-height: 40px;
      padding: 9px 14px;
      color: #ffdce8;
      background: rgba(255, 77, 141, 0.12);
      border: 1px solid rgba(255, 77, 141, 0.28);
      font-size: 13px;
    }

    .section {
      padding: 86px 0;
      position: relative;
    }

    .section-tight {
      padding: 62px 0;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 14px;
      padding: 7px 12px;
      border-radius: 999px;
      color: #ffe0ea;
      background: rgba(255, 77, 141, 0.12);
      border: 1px solid rgba(255, 77, 141, 0.25);
      font-weight: 900;
      font-size: 13px;
    }

    .section-head {
      display: flex;
      justify-content: space-between;
      align-items: end;
      gap: 28px;
      margin-bottom: 34px;
    }

    .section-title {
      font-size: clamp(28px, 4vw, 44px);
      line-height: 1.18;
      letter-spacing: -0.055em;
      max-width: 760px;
    }

    .section-desc {
      max-width: 620px;
      color: var(--muted);
      font-size: 16px;
      margin-top: 12px;
    }

    .hero {
      padding: 78px 0 64px;
    }

    .hero-shell {
      position: relative;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: 36px;
      background:
        linear-gradient(135deg, rgba(255, 77, 141, 0.24), rgba(124, 92, 255, 0.18) 48%, rgba(52, 211, 180, 0.10)),
        rgba(255, 255, 255, 0.055);
      box-shadow: var(--shadow);
    }

    .hero-shell::before {
      content: "";
      position: absolute;
      inset: -1px;
      background:
        radial-gradient(circle at 12% 10%, rgba(255,255,255,0.22), transparent 25%),
        radial-gradient(circle at 83% 25%, rgba(255, 209, 102, 0.16), transparent 25%),
        linear-gradient(90deg, transparent 0 54%, rgba(255,255,255,0.08) 54% 55%, transparent 55% 100%);
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1.08fr 0.92fr;
      gap: 34px;
      padding: clamp(28px, 5vw, 58px);
      align-items: stretch;
    }

    .hero-copy {
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .hero-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 20px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 8px 12px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.09);
      border: 1px solid var(--line);
      color: #f6f7fb;
      font-size: 13px;
      font-weight: 800;
    }

    .badge.green {
      background: rgba(52, 211, 180, 0.12);
      border-color: rgba(52, 211, 180, 0.28);
      color: #dbfff7;
    }

    .hero h1 {
      font-size: clamp(38px, 6.8vw, 76px);
      line-height: 0.98;
      letter-spacing: -0.075em;
      max-width: 820px;
      margin-bottom: 24px;
    }

    .hero-lead {
      max-width: 760px;
      color: #d7ddea;
      font-size: clamp(16px, 2vw, 20px);
      line-height: 1.9;
      margin-bottom: 26px;
    }

    .hero-points {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
      margin: 0 0 28px;
      list-style: none;
    }

    .hero-points li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      padding: 13px 14px;
      border: 1px solid var(--line);
      border-radius: 16px;
      background: rgba(4, 8, 20, 0.22);
      color: #e9edf7;
      font-weight: 700;
    }

    .check-dot {
      width: 22px;
      height: 22px;
      flex: 0 0 auto;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: rgba(52, 211, 180, 0.18);
      color: var(--accent);
      font-size: 13px;
      margin-top: 2px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 14px;
      margin-bottom: 22px;
    }

    .trust-strip {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      color: var(--muted);
      font-size: 13px;
    }

    .trust-strip span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 7px 10px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.09);
    }

    .hero-stage {
      display: grid;
      grid-template-columns: 1fr 1fr;
      grid-template-rows: auto auto auto;
      gap: 14px;
      align-content: center;
    }

    .stage-card {
      position: relative;
      overflow: hidden;
      min-height: 154px;
      padding: 20px;
      border-radius: 24px;
      background: rgba(5, 9, 22, 0.38);
      border: 1px solid var(--line);
      box-shadow: 0 16px 46px rgba(0, 0, 0, 0.2);
      transition: transform .2s ease, border-color .2s ease, background .2s ease;
    }

    .stage-card:hover {
      transform: translateY(-3px);
      border-color: rgba(255, 255, 255, 0.25);
      background: rgba(5, 9, 22, 0.48);
    }

    .stage-card.wide {
      grid-column: span 2;
      min-height: 132px;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 18px;
      align-items: center;
    }

    .stage-label {
      color: var(--muted);
      font-size: 13px;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .stage-value {
      font-size: 34px;
      line-height: 1.1;
      letter-spacing: -0.06em;
      font-weight: 950;
    }

    .stage-text {
      color: #c8d0e1;
      font-size: 14px;
      margin-top: 8px;
    }

    .mini-bars {
      display: flex;
      gap: 7px;
      align-items: end;
      height: 58px;
      margin-top: 20px;
    }

    .mini-bars i {
      flex: 1;
      border-radius: 999px 999px 6px 6px;
      background: linear-gradient(180deg, var(--primary), rgba(124, 92, 255, 0.35));
    }

    .mini-bars i:nth-child(1) { height: 35%; }
    .mini-bars i:nth-child(2) { height: 62%; }
    .mini-bars i:nth-child(3) { height: 48%; }
    .mini-bars i:nth-child(4) { height: 80%; }
    .mini-bars i:nth-child(5) { height: 58%; }

    .topic-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 18px;
    }

    .topic-cloud span {
      padding: 6px 9px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.08);
      color: #e8edf8;
      font-size: 12px;
      font-weight: 800;
    }

    .meter {
      width: 112px;
      height: 112px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background:
        conic-gradient(var(--accent) 0 82%, rgba(255,255,255,.14) 82% 100%);
      box-shadow: inset 0 0 0 12px rgba(5, 9, 22, 0.72);
      font-size: 25px;
      font-weight: 950;
      letter-spacing: -0.04em;
    }

    .stats-grid {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 22px;
      align-items: stretch;
    }

    .about-panel,
    .kpi-panel {
      border: 1px solid var(--line);
      border-radius: var(--radius-xl);
      background: rgba(255, 255, 255, 0.06);
      box-shadow: var(--shadow-soft);
    }

    .about-panel {
      padding: 30px;
      background:
        radial-gradient(circle at 0% 0%, rgba(255, 77, 141, 0.16), transparent 34%),
        rgba(255, 255, 255, 0.06);
    }

    .about-panel p {
      color: var(--muted);
      margin-top: 14px;
    }

    .notice-card {
      margin-top: 22px;
      padding: 18px;
      border-radius: 20px;
      background: rgba(255, 209, 102, 0.1);
      border: 1px solid rgba(255, 209, 102, 0.25);
      color: #fff3cf;
      font-weight: 700;
    }

    .kpi-panel {
      padding: 18px;
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
    }

    .kpi-card {
      padding: 22px;
      border-radius: 22px;
      background: rgba(10, 15, 31, 0.52);
      border: 1px solid rgba(255, 255, 255, 0.09);
    }

    .kpi-num {
      font-size: clamp(30px, 4vw, 48px);
      line-height: 1;
      letter-spacing: -0.07em;
      font-weight: 950;
      background: linear-gradient(135deg, #fff, #ffc7db 44%, #a996ff);
      -webkit-background-clip: text;
      color: transparent;
    }

    .kpi-label {
      color: var(--muted);
      font-weight: 750;
      margin-top: 10px;
    }

    .news-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.75fr);
      gap: 24px;
      align-items: start;
    }

    .news-list,
    .recommend-box,
    .service-card,
    .coupon-card,
    .guarantee-card,
    .app-card,
    .faq-item,
    .cta-box,
    .compare-wrap,
    .rank-card {
      border: 1px solid var(--line);
      background: rgba(255, 255, 255, 0.06);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-soft);
    }

    .news-list {
      overflow: hidden;
    }

    .news-row {
      display: grid;
      grid-template-columns: 118px 1fr auto;
      gap: 18px;
      align-items: center;
      padding: 20px 22px;
      border-bottom: 1px solid var(--line);
      transition: background .2s ease, transform .2s ease;
    }

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

    .news-row:hover {
      background: rgba(255, 255, 255, 0.055);
    }

    .news-date {
      color: var(--accent);
      font-weight: 950;
      font-size: 14px;
    }

    .news-title {
      font-weight: 900;
      color: #f9fbff;
    }

    .news-meta {
      color: var(--muted);
      font-size: 13px;
      margin-top: 4px;
    }

    .news-state {
      justify-self: end;
      padding: 7px 10px;
      border-radius: 999px;
      background: rgba(52, 211, 180, 0.12);
      color: #d9fff6;
      border: 1px solid rgba(52, 211, 180, 0.25);
      font-size: 12px;
      font-weight: 900;
      white-space: nowrap;
    }

    .recommend-box {
      padding: 24px;
      background:
        radial-gradient(circle at 100% 0%, rgba(124, 92, 255, 0.2), transparent 34%),
        rgba(255, 255, 255, 0.06);
    }

    .recommend-box h3 {
      font-size: 22px;
      letter-spacing: -0.04em;
      margin-bottom: 12px;
    }

    .recommend-box p {
      color: var(--muted);
      margin-bottom: 18px;
    }

    .update-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 9px;
      margin: 18px 0 20px;
    }

    .update-chips span {
      padding: 8px 10px;
      border-radius: 12px;
      color: #e9efff;
      background: rgba(255, 255, 255, 0.075);
      border: 1px solid var(--line);
      font-size: 13px;
      font-weight: 800;
    }

    .service-mosaic {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr 0.85fr;
      gap: 18px;
    }

    .service-card {
      padding: 26px;
      min-height: 230px;
      transition: transform .2s ease, border-color .2s ease, background .2s ease;
    }

    .service-card:hover,
    .coupon-card:hover,
    .guarantee-card:hover,
    .rank-card:hover {
      transform: translateY(-4px);
      border-color: rgba(255, 77, 141, 0.32);
      background: rgba(255, 255, 255, 0.085);
    }

    .service-card.featured {
      grid-row: span 2;
      background:
        linear-gradient(160deg, rgba(255, 77, 141, 0.18), rgba(124, 92, 255, 0.12)),
        rgba(255, 255, 255, 0.06);
    }

    .card-icon {
      width: 48px;
      height: 48px;
      display: grid;
      place-items: center;
      border-radius: 18px;
      margin-bottom: 18px;
      background: linear-gradient(135deg, rgba(255, 77, 141, 0.35), rgba(124, 92, 255, 0.26));
      font-size: 22px;
    }

    .service-card h3,
    .coupon-card h3,
    .guarantee-card h3,
    .rank-card h3,
    .app-card h3 {
      font-size: 22px;
      line-height: 1.3;
      letter-spacing: -0.04em;
      margin-bottom: 10px;
    }

    .service-card p,
    .coupon-card p,
    .guarantee-card p,
    .rank-card p,
    .app-card p {
      color: var(--muted);
    }

    .service-list {
      list-style: none;
      margin-top: 20px;
      display: grid;
      gap: 12px;
    }

    .service-list li {
      display: flex;
      align-items: center;
      gap: 10px;
      color: #e9edf7;
      font-weight: 750;
    }

    .coupon-wall {
      position: relative;
      overflow: hidden;
      border-radius: 34px;
      border: 1px solid var(--line);
      background:
        linear-gradient(135deg, rgba(255, 77, 141, 0.18), rgba(255, 122, 89, 0.12) 42%, rgba(52, 211, 180, 0.09)),
        rgba(255, 255, 255, 0.05);
      padding: clamp(24px, 4vw, 38px);
      box-shadow: var(--shadow-soft);
    }

    .coupon-top {
      display: grid;
      grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
      gap: 28px;
      align-items: center;
      margin-bottom: 24px;
    }

    .coupon-visual {
      min-height: 230px;
      border-radius: 28px;
      border: 1px dashed rgba(255, 255, 255, 0.3);
      display: grid;
      place-items: center;
      text-align: center;
      background:
        radial-gradient(circle at 24% 20%, rgba(255,255,255,0.18), transparent 24%),
        rgba(7, 11, 24, 0.38);
      padding: 24px;
    }

    .coupon-visual strong {
      display: block;
      font-size: clamp(36px, 7vw, 72px);
      line-height: 1;
      letter-spacing: -0.08em;
    }

    .coupon-visual span {
      color: #ffdce8;
      font-weight: 900;
    }

    .coupon-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
      margin-top: 22px;
    }

    .coupon-card {
      position: relative;
      padding: 22px;
      overflow: hidden;
      transition: transform .2s ease, border-color .2s ease, background .2s ease;
    }

    .coupon-card::before,
    .coupon-card::after {
      content: "";
      position: absolute;
      top: 50%;
      width: 18px;
      height: 18px;
      border-radius: 50%;
      background: #111827;
      transform: translateY(-50%);
      border: 1px solid var(--line);
    }

    .coupon-card::before { left: -10px; }
    .coupon-card::after { right: -10px; }

    .coupon-value {
      color: #fff;
      font-size: 30px;
      font-weight: 950;
      letter-spacing: -0.06em;
      margin-bottom: 7px;
    }

    .rule-box {
      margin-top: 18px;
      padding: 18px;
      border-radius: 18px;
      background: rgba(7, 11, 24, 0.34);
      border: 1px solid var(--line);
      color: #d7ddea;
    }

    .rule-box ul {
      padding-left: 18px;
      color: var(--muted);
      margin-top: 8px;
    }

    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 16px;
    }

    .guarantee-card {
      padding: 24px;
      transition: transform .2s ease, border-color .2s ease, background .2s ease;
    }

    .guarantee-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 10px;
      border-radius: 999px;
      background: rgba(52, 211, 180, 0.12);
      border: 1px solid rgba(52, 211, 180, 0.24);
      color: #d9fff6;
      font-size: 13px;
      font-weight: 900;
      margin-bottom: 16px;
    }

    .compare-wrap {
      overflow: hidden;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 760px;
    }

    .compare-table th,
    .compare-table td {
      text-align: left;
      padding: 18px 20px;
      border-bottom: 1px solid var(--line);
      vertical-align: top;
    }

    .compare-table th {
      color: #fff;
      background: rgba(255, 255, 255, 0.07);
      font-size: 15px;
      letter-spacing: -0.02em;
    }

    .compare-table td {
      color: var(--muted);
    }

    .compare-table tr:last-child td {
      border-bottom: 0;
    }

    .compare-good {
      color: #dcfff5 !important;
      font-weight: 850;
    }

    .compare-normal {
      color: #c4cada !important;
    }

    .rank-strip {
      display: grid;
      grid-template-columns: repeat(4, minmax(260px, 1fr));
      gap: 16px;
      overflow-x: auto;
      padding-bottom: 6px;
      scrollbar-color: rgba(255,255,255,.22) transparent;
    }

    .rank-card {
      min-width: 260px;
      padding: 24px;
      transition: transform .2s ease, border-color .2s ease, background .2s ease;
    }

    .rank-no {
      width: 38px;
      height: 38px;
      display: grid;
      place-items: center;
      border-radius: 14px;
      margin-bottom: 16px;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      font-weight: 950;
    }

    .app-layout {
      display: grid;
      grid-template-columns: 0.95fr 1.05fr;
      gap: 22px;
      align-items: stretch;
    }

    .app-card {
      padding: 30px;
      background:
        radial-gradient(circle at 100% 0%, rgba(52, 211, 180, 0.18), transparent 34%),
        rgba(255, 255, 255, 0.06);
    }

    .device-panel {
      position: relative;
      min-height: 380px;
      border-radius: 30px;
      border: 1px solid var(--line);
      background:
        linear-gradient(135deg, rgba(124, 92, 255, 0.18), rgba(255, 77, 141, 0.12)),
        rgba(255, 255, 255, 0.05);
      overflow: hidden;
      box-shadow: var(--shadow-soft);
      padding: 26px;
    }

    .device-panel::before {
      content: "";
      position: absolute;
      inset: 24px;
      border-radius: 26px;
      border: 1px solid rgba(255,255,255,0.12);
      background:
        linear-gradient(90deg, rgba(255,255,255,0.09), transparent),
        rgba(4, 8, 20, 0.28);
    }

    .sync-card {
      position: relative;
      z-index: 1;
      max-width: 460px;
      padding: 22px;
      border-radius: 22px;
      background: rgba(8, 12, 26, 0.62);
      border: 1px solid var(--line);
      margin-bottom: 14px;
    }

    .sync-row {
      display: flex;
      justify-content: space-between;
      gap: 14px;
      align-items: center;
      padding: 12px 0;
      border-bottom: 1px solid rgba(255,255,255,0.08);
      color: var(--muted);
    }

    .sync-row:last-child {
      border-bottom: 0;
    }

    .sync-row strong {
      color: #fff;
    }

    .download-list {
      display: grid;
      gap: 12px;
      margin-top: 24px;
      list-style: none;
    }

    .download-list li {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 14px;
      border-radius: 16px;
      background: rgba(255,255,255,0.06);
      border: 1px solid var(--line);
      color: #e8edf8;
      font-weight: 760;
    }

    .faq-layout {
      display: grid;
      grid-template-columns: 0.72fr 1.28fr;
      gap: 24px;
      align-items: start;
    }

    .faq-side {
      position: sticky;
      top: 98px;
      padding: 26px;
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid var(--line);
    }

    .faq-side p {
      color: var(--muted);
      margin: 12px 0 20px;
    }

    .faq-list {
      display: grid;
      gap: 14px;
    }

    .faq-item {
      overflow: hidden;
    }

    .faq-item summary {
      list-style: none;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 20px 22px;
      cursor: pointer;
      font-weight: 950;
      letter-spacing: -0.02em;
    }

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

    .faq-item summary::after {
      content: "+";
      width: 30px;
      height: 30px;
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      border-radius: 50%;
      background: rgba(255,255,255,0.08);
      color: var(--accent);
      font-size: 20px;
      transition: transform .2s ease, background .2s ease;
    }

    .faq-item[open] summary::after {
      content: "−";
      transform: rotate(180deg);
      background: rgba(52, 211, 180, 0.14);
    }

    .faq-item p {
      padding: 0 22px 22px;
      color: var(--muted);
    }

    .cta-box {
      position: relative;
      overflow: hidden;
      padding: clamp(28px, 5vw, 52px);
      border-radius: 34px;
      background:
        radial-gradient(circle at 0% 0%, rgba(255, 77, 141, 0.28), transparent 32%),
        radial-gradient(circle at 100% 0%, rgba(52, 211, 180, 0.18), transparent 28%),
        linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.035));
    }

    .cta-content {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 24px;
      align-items: center;
    }

    .cta-box h2 {
      font-size: clamp(28px, 4.2vw, 48px);
      line-height: 1.16;
      letter-spacing: -0.06em;
      margin-bottom: 12px;
    }

    .cta-box p {
      color: #d7ddea;
      max-width: 720px;
    }

    .cta-actions {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .site-footer {
      padding: 46px 0 34px;
      border-top: 1px solid var(--line);
      background: rgba(5, 8, 18, 0.72);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 28px;
      align-items: start;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
      font-weight: 950;
      font-size: 18px;
    }

    .footer-desc {
      max-width: 680px;
      color: var(--muted);
      font-size: 14px;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      justify-content: flex-end;
      gap: 10px;
    }

    .footer-links a,
    .footer-links span {
      padding: 9px 12px;
      border-radius: 999px;
      background: rgba(255,255,255,0.06);
      border: 1px solid var(--line);
      color: var(--muted);
      font-size: 13px;
      font-weight: 800;
      transition: color .2s ease, background .2s ease, border-color .2s ease;
    }

    .footer-links a:hover {
      color: #fff;
      background: rgba(255,77,141,0.12);
      border-color: rgba(255,77,141,0.28);
    }

    .footer-bottom {
      margin-top: 30px;
      padding-top: 18px;
      border-top: 1px solid var(--line);
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      color: var(--subtle);
      font-size: 13px;
    }

    .age-gate {
      position: fixed;
      inset: 0;
      z-index: 100;
      display: none;
      align-items: center;
      justify-content: center;
      padding: 22px;
      background: rgba(3, 6, 14, 0.86);
      backdrop-filter: blur(18px);
    }

    .age-gate.show {
      display: flex;
    }

    .gate-card {
      width: min(100%, 560px);
      padding: 30px;
      border-radius: 28px;
      border: 1px solid var(--line-strong);
      background:
        radial-gradient(circle at 10% 0%, rgba(255, 77, 141, 0.20), transparent 30%),
        #111827;
      box-shadow: var(--shadow);
      text-align: center;
    }

    .gate-card h2 {
      font-size: 30px;
      line-height: 1.25;
      letter-spacing: -0.05em;
      margin: 14px 0 12px;
    }

    .gate-card p {
      color: var(--muted);
      margin-bottom: 22px;
    }

    .gate-actions {
      display: flex;
      justify-content: center;
      gap: 12px;
      flex-wrap: wrap;
    }

    @media (max-width: 1024px) {
      .hero-content,
      .stats-grid,
      .coupon-top,
      .app-layout,
      .faq-layout,
      .footer-grid {
        grid-template-columns: 1fr;
      }

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

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

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

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

      .faq-side {
        position: static;
      }

      .footer-links {
        justify-content: flex-start;
      }

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

      .cta-actions {
        flex-direction: row;
        flex-wrap: wrap;
      }
    }

    @media (max-width: 768px) {
      .container {
        width: min(100% - 28px, var(--container));
      }

      .header-inner {
        align-items: flex-start;
        flex-wrap: wrap;
      }

      .brand-name {
        max-width: 210px;
      }

      .menu-toggle {
        display: grid;
        place-items: center;
      }

      .nav-wrap {
        width: 100%;
        display: none;
      }

      .nav-wrap.open {
        display: block;
      }

      .icon-nav {
        width: 100%;
        grid-template-columns: 1fr;
      }

      .header-actions {
        margin-left: auto;
      }

      .age-pill {
        display: none;
      }

      .hero {
        padding-top: 36px;
      }

      .hero-content {
        padding: 24px;
      }

      .hero-points,
      .kpi-panel,
      .coupon-grid,
      .guarantee-grid {
        grid-template-columns: 1fr;
      }

      .stage-card.wide {
        grid-column: span 1;
        grid-template-columns: 1fr;
      }

      .hero-stage,
      .service-mosaic {
        grid-template-columns: 1fr;
      }

      .service-card.featured {
        grid-column: auto;
      }

      .section {
        padding: 64px 0;
      }

      .section-head {
        display: block;
      }

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

      .news-row {
        grid-template-columns: 1fr;
        gap: 8px;
      }

      .news-state {
        justify-self: start;
      }

      .compare-wrap {
        overflow-x: auto;
      }

      .device-panel {
        min-height: auto;
      }
    }

    @media (max-width: 520px) {
      .brand-mark {
        width: 40px;
        height: 40px;
        border-radius: 14px;
      }

      .brand-name {
        font-size: 15px;
        max-width: 180px;
      }

      .brand-note {
        display: none;
      }

      .hero-shell,
      .coupon-wall,
      .cta-box {
        border-radius: 24px;
      }

      .hero h1 {
        font-size: 38px;
      }

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

      .btn {
        width: 100%;
      }

      .stage-card,
      .service-card,
      .coupon-card,
      .guarantee-card,
      .app-card,
      .recommend-box,
      .faq-side {
        padding: 20px;
      }

      .section-title {
        font-size: 28px;
      }

      .footer-bottom {
        display: block;
      }

      .footer-bottom span {
        display: block;
        margin-bottom: 8px;
      }
    }