/* roulang page: index */
:root {
      --bg: #09090d;
      --bg-soft: #11121a;
      --panel: #171824;
      --panel-2: #202231;
      --gold: #d8b45d;
      --gold-2: #ffe4a3;
      --red: #e44f62;
      --cyan: #48d6c8;
      --text: #f7f3e8;
      --muted: #b8b4aa;
      --weak: #7f8290;
      --border: rgba(216, 180, 93, .24);
      --border-soft: rgba(255, 255, 255, .09);
      --shadow: 0 24px 70px rgba(0, 0, 0, .42);
      --shadow-soft: 0 14px 36px rgba(0, 0, 0, .24);
      --radius-lg: 24px;
      --radius-md: 18px;
      --radius-sm: 12px;
      --container: 1180px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
      color: var(--text);
      line-height: 1.7;
      background:
        radial-gradient(circle at 18% 0%, rgba(216, 180, 93, .14), transparent 28%),
        radial-gradient(circle at 82% 12%, rgba(72, 214, 200, .1), transparent 24%),
        linear-gradient(180deg, #08080c 0%, #101119 48%, #09090d 100%);
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; transition: color .2s ease, opacity .2s ease, transform .2s ease; }
    img { max-width: 100%; display: block; }
    button, input, select, textarea { font: inherit; }
    ::selection { background: rgba(216, 180, 93, .35); color: #fff; }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(9, 9, 13, .84);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--border-soft);
    }
    .navbar {
      padding: 14px 0;
    }
    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-weight: 900;
      color: var(--text);
      letter-spacing: 0;
      white-space: nowrap;
    }
    .brand-mark {
      width: 38px;
      height: 38px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      color: #171000;
      background: linear-gradient(135deg, var(--gold-2), var(--gold));
      box-shadow: 0 10px 26px rgba(216, 180, 93, .24);
    }
    .navbar-toggler {
      border: 1px solid var(--border);
      color: var(--gold-2);
      border-radius: 12px;
      padding: 8px 10px;
    }
    .navbar-toggler:focus {
      box-shadow: 0 0 0 4px rgba(216, 180, 93, .18);
    }
    .nav-link {
      color: var(--muted);
      font-weight: 700;
      padding: 10px 14px !important;
      border-radius: 999px;
    }
    .nav-link:hover,
    .nav-link:focus {
      color: var(--gold-2);
      background: rgba(216, 180, 93, .09);
    }
    .nav-link.active {
      color: #15100a;
      background: linear-gradient(135deg, var(--gold-2), var(--gold));
    }
    .nav-cta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-left: 10px;
      padding: 10px 16px;
      border-radius: 999px;
      color: #fff;
      font-weight: 800;
      background: linear-gradient(135deg, #e44f62, #9f3040);
      border: 1px solid rgba(255, 255, 255, .14);
      box-shadow: 0 10px 28px rgba(228, 79, 98, .22);
    }
    .nav-cta:hover { color: #fff; transform: translateY(-1px); }

    .btn-gold,
    .btn-darkline,
    .btn-red {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 46px;
      padding: 12px 18px;
      border-radius: 999px;
      border: 1px solid transparent;
      font-weight: 850;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease;
    }
    .btn-gold {
      color: #15100a;
      background: linear-gradient(135deg, var(--gold-2), var(--gold));
      box-shadow: 0 14px 34px rgba(216, 180, 93, .25);
    }
    .btn-red {
      color: #fff;
      background: linear-gradient(135deg, #f05f72, #b12f42);
      box-shadow: 0 14px 34px rgba(228, 79, 98, .22);
    }
    .btn-darkline {
      color: var(--text);
      background: rgba(255, 255, 255, .06);
      border-color: var(--border-soft);
    }
    .btn-gold:hover,
    .btn-red:hover,
    .btn-darkline:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-soft);
    }
    .btn-darkline:hover { border-color: var(--border); color: var(--gold-2); }
    .btn-gold:focus,
    .btn-red:focus,
    .btn-darkline:focus,
    .form-control:focus {
      outline: none;
      box-shadow: 0 0 0 4px rgba(216, 180, 93, .18);
      border-color: var(--gold);
    }

    .section {
      padding: 78px 0;
      position: relative;
    }
    .section-tight { padding: 52px 0; }
    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 28px;
      margin-bottom: 30px;
    }
    .section-title {
      margin: 0;
      font-size: clamp(28px, 4vw, 44px);
      line-height: 1.18;
      font-weight: 950;
    }
    .section-desc {
      margin: 12px 0 0;
      max-width: 680px;
      color: var(--muted);
      font-size: 16px;
    }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border: 1px solid var(--border);
      border-radius: 999px;
      color: var(--gold-2);
      background: rgba(216, 180, 93, .08);
      font-size: 13px;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .hero {
      padding: 54px 0 44px;
      min-height: calc(100vh - 78px);
      display: flex;
      align-items: center;
    }
    .hero-stage {
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      background:
        linear-gradient(135deg, rgba(255, 228, 163, .1), rgba(255, 255, 255, .03) 34%),
        linear-gradient(180deg, rgba(23, 24, 36, .94), rgba(13, 14, 22, .98));
      box-shadow: var(--shadow);
    }
    .hero-topline {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      padding: 14px 18px;
      border-bottom: 1px solid var(--border-soft);
      background: rgba(255, 255, 255, .035);
      color: var(--muted);
      font-size: 14px;
    }
    .status-dot {
      width: 9px;
      height: 9px;
      border-radius: 999px;
      background: var(--cyan);
      box-shadow: 0 0 0 5px rgba(72, 214, 200, .13);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: .92fr 1.08fr .86fr;
      gap: 0;
      min-height: 560px;
    }
    .whitepaper-cover {
      padding: 30px;
      border-right: 1px solid var(--border-soft);
      background: linear-gradient(180deg, rgba(216, 180, 93, .11), rgba(255, 255, 255, .02));
    }
    .cover-card {
      height: 100%;
      min-height: 430px;
      border-radius: 20px;
      padding: 26px;
      border: 1px solid rgba(255, 228, 163, .28);
      background:
        linear-gradient(160deg, rgba(255, 228, 163, .2), rgba(12, 12, 18, .5) 42%),
        repeating-linear-gradient(135deg, rgba(255,255,255,.06), rgba(255,255,255,.06) 1px, transparent 1px, transparent 12px);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .04);
    }
    .cover-kicker {
      color: var(--gold-2);
      font-weight: 900;
      font-size: 14px;
    }
    .cover-title {
      margin: 16px 0;
      font-size: 34px;
      line-height: 1.15;
      font-weight: 950;
    }
    .cover-meta {
      color: var(--muted);
      font-size: 14px;
    }
    .cover-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .badge-soft {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      border-radius: 999px;
      padding: 7px 10px;
      color: var(--gold-2);
      border: 1px solid var(--border);
      background: rgba(0, 0, 0, .18);
      font-size: 12px;
      font-weight: 800;
    }

    .hero-copy {
      padding: 44px 38px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    h1 {
      margin: 0;
      font-size: clamp(34px, 5vw, 60px);
      line-height: 1.08;
      font-weight: 980;
    }
    .hero-copy p {
      margin: 20px 0 0;
      color: var(--muted);
      font-size: 17px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 26px;
    }
    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-top: 30px;
    }
    .metric {
      padding: 15px;
      border-radius: 16px;
      border: 1px solid var(--border-soft);
      background: rgba(255, 255, 255, .045);
    }
    .metric strong {
      display: block;
      font-size: 24px;
      color: var(--gold-2);
      line-height: 1.1;
    }
    .metric span { color: var(--weak); font-size: 13px; }

    .lead-form {
      padding: 30px;
      border-left: 1px solid var(--border-soft);
      background: rgba(0, 0, 0, .18);
    }
    .form-panel {
      position: sticky;
      top: 104px;
      border-radius: 20px;
      padding: 22px;
      border: 1px solid var(--border);
      background: rgba(23, 24, 36, .82);
      box-shadow: var(--shadow-soft);
    }
    .form-panel h2 {
      margin: 0 0 10px;
      font-size: 22px;
      font-weight: 940;
    }
    .form-panel p {
      color: var(--muted);
      margin-bottom: 18px;
      font-size: 14px;
    }
    .form-control {
      border: 1px solid var(--border-soft);
      background: rgba(255, 255, 255, .07);
      color: var(--text);
      border-radius: 12px;
      min-height: 46px;
    }
    .form-control::placeholder { color: #8b8d98; }
    .form-check-input {
      background-color: rgba(255,255,255,.08);
      border-color: var(--border);
    }
    .form-check-input:checked {
      background-color: var(--gold);
      border-color: var(--gold);
    }
    .form-check-label {
      color: var(--muted);
      font-size: 13px;
    }

    .countdown {
      display: grid;
      grid-template-columns: auto 1fr auto;
      align-items: center;
      gap: 16px;
      padding: 16px 18px;
      border: 1px solid rgba(228, 79, 98, .34);
      border-radius: 18px;
      background: linear-gradient(90deg, rgba(228, 79, 98, .14), rgba(216, 180, 93, .09));
      margin-bottom: 24px;
    }
    .time-boxes {
      display: flex;
      gap: 8px;
      justify-content: center;
    }
    .time-box {
      min-width: 58px;
      text-align: center;
      border-radius: 12px;
      padding: 8px 6px;
      background: rgba(0, 0, 0, .28);
      border: 1px solid var(--border-soft);
    }
    .time-box b {
      display: block;
      font-size: 22px;
      color: var(--gold-2);
      line-height: 1;
    }
    .time-box small { color: var(--weak); font-size: 12px; }

    .tier-track {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 22px;
      align-items: stretch;
    }
    .deal-rail {
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      background: rgba(23, 24, 36, .72);
      padding: 20px;
      overflow: hidden;
    }
    .deal-row {
      display: grid;
      grid-template-columns: 74px 1fr auto;
      gap: 16px;
      align-items: center;
      padding: 16px 0;
      border-bottom: 1px solid var(--border-soft);
    }
    .deal-row:last-child { border-bottom: 0; }
    .deal-no {
      width: 58px;
      height: 58px;
      border-radius: 18px;
      display: grid;
      place-items: center;
      color: #16100a;
      background: linear-gradient(135deg, var(--gold-2), var(--gold));
      font-weight: 950;
      font-size: 22px;
    }
    .deal-row h3 {
      margin: 0;
      font-size: 20px;
      font-weight: 920;
    }
    .deal-row p {
      margin: 5px 0 0;
      color: var(--muted);
      font-size: 14px;
    }
    .stock {
      color: var(--red);
      font-weight: 850;
      white-space: nowrap;
    }
    .festival-panel {
      border-radius: var(--radius-lg);
      padding: 24px;
      border: 1px solid rgba(72, 214, 200, .24);
      background:
        linear-gradient(160deg, rgba(72, 214, 200, .12), rgba(216, 180, 93, .08)),
        rgba(23, 24, 36, .72);
    }
    .festival-panel ul {
      list-style: none;
      padding: 0;
      margin: 18px 0 0;
      display: grid;
      gap: 12px;
    }
    .festival-panel li {
      display: flex;
      gap: 10px;
      color: var(--muted);
      padding: 11px 0;
      border-bottom: 1px dashed var(--border-soft);
    }
    .festival-panel li:last-child { border-bottom: 0; }
    .festival-panel i { color: var(--cyan); margin-top: 5px; }

    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
      align-items: stretch;
    }
    .price-card {
      position: relative;
      padding: 24px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-soft);
      background: rgba(23, 24, 36, .7);
      box-shadow: var(--shadow-soft);
      transition: transform .2s ease, border-color .2s ease;
    }
    .price-card:hover { transform: translateY(-4px); border-color: var(--border); }
    .price-card.featured {
      border-color: rgba(216, 180, 93, .55);
      background: linear-gradient(180deg, rgba(216, 180, 93, .14), rgba(23, 24, 36, .84));
    }
    .recommend {
      position: absolute;
      top: 16px;
      right: 16px;
      color: #171000;
      background: var(--gold-2);
      border-radius: 999px;
      padding: 5px 10px;
      font-size: 12px;
      font-weight: 900;
    }
    .price-card h3 { margin: 0 0 8px; font-size: 22px; font-weight: 930; }
    .price {
      margin: 16px 0;
      font-size: 38px;
      font-weight: 960;
      color: var(--gold-2);
    }
    .price small { color: var(--weak); font-size: 14px; font-weight: 700; }
    .feature-list {
      list-style: none;
      padding: 0;
      margin: 18px 0 22px;
      display: grid;
      gap: 10px;
    }
    .feature-list li {
      display: flex;
      align-items: flex-start;
      gap: 9px;
      color: var(--muted);
      font-size: 14px;
    }
    .feature-list i { color: var(--gold); margin-top: 5px; }

    .assurance-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1px;
      overflow: hidden;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      background: var(--border-soft);
    }
    .assurance-item {
      padding: 24px;
      background: rgba(23, 24, 36, .9);
    }
    .assurance-item i {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      color: #171000;
      background: linear-gradient(135deg, var(--gold-2), var(--gold));
      margin-bottom: 14px;
    }
    .assurance-item h3 { margin: 0 0 8px; font-size: 18px; font-weight: 920; }
    .assurance-item p { margin: 0; color: var(--muted); font-size: 14px; }

    .news-layout {
      display: grid;
      grid-template-columns: 1.45fr .75fr;
      gap: 22px;
    }
    .news-list,
    .recommend-box,
    .scenario-box,
    .milestone-box,
    .faq-box {
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-soft);
      background: rgba(23, 24, 36, .72);
      box-shadow: var(--shadow-soft);
    }
    .news-list { padding: 8px 22px; }
    .news-item {
      display: grid;
      grid-template-columns: 112px 1fr auto;
      gap: 16px;
      align-items: center;
      padding: 18px 0;
      border-bottom: 1px solid var(--border-soft);
    }
    .news-item:last-child { border-bottom: 0; }
    .news-item time {
      color: var(--gold-2);
      font-size: 13px;
      font-weight: 850;
    }
    .news-item a {
      font-size: 17px;
      font-weight: 860;
    }
    .news-item a:hover { color: var(--gold-2); }
    .news-item p {
      margin: 4px 0 0;
      color: var(--muted);
      font-size: 14px;
    }
    .tag {
      display: inline-flex;
      border-radius: 999px;
      padding: 5px 10px;
      color: var(--cyan);
      border: 1px solid rgba(72, 214, 200, .26);
      background: rgba(72, 214, 200, .08);
      font-size: 12px;
      font-weight: 850;
      white-space: nowrap;
    }
    .recommend-box { padding: 22px; }
    .rank-list {
      list-style: none;
      padding: 0;
      margin: 16px 0 0;
      display: grid;
      gap: 12px;
    }
    .rank-list li {
      display: grid;
      grid-template-columns: 34px 1fr;
      gap: 12px;
      align-items: start;
      padding-bottom: 12px;
      border-bottom: 1px dashed var(--border-soft);
    }
    .rank-list li:last-child { border-bottom: 0; padding-bottom: 0; }
    .rank-no {
      width: 30px;
      height: 30px;
      border-radius: 10px;
      display: grid;
      place-items: center;
      color: #171000;
      background: var(--gold);
      font-weight: 900;
    }
    .rank-list strong { display: block; line-height: 1.35; }
    .rank-list span { color: var(--muted); font-size: 13px; }

    .scenario-wrap {
      display: grid;
      grid-template-columns: .92fr 1.08fr;
      gap: 22px;
      align-items: stretch;
    }
    .scenario-box { padding: 26px; }
    .step-list {
      display: grid;
      gap: 14px;
      margin-top: 18px;
    }
    .step {
      display: grid;
      grid-template-columns: 42px 1fr;
      gap: 14px;
      align-items: start;
    }
    .step b {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      background: rgba(216, 180, 93, .14);
      border: 1px solid var(--border);
      color: var(--gold-2);
    }
    .step h3 { margin: 0 0 4px; font-size: 17px; font-weight: 910; }
    .step p { margin: 0; color: var(--muted); font-size: 14px; }
    .demo-panel {
      border-radius: var(--radius-lg);
      padding: 28px;
      min-height: 360px;
      border: 1px solid rgba(216, 180, 93, .3);
      background:
        linear-gradient(135deg, rgba(216, 180, 93, .18), rgba(228, 79, 98, .1)),
        linear-gradient(180deg, rgba(35, 36, 49, .92), rgba(16, 17, 25, .95));
    }
    .demo-screen {
      border-radius: 18px;
      padding: 18px;
      border: 1px solid var(--border-soft);
      background: rgba(0, 0, 0, .24);
    }
    .search-line {
      display: flex;
      gap: 10px;
      align-items: center;
      padding: 12px 14px;
      border-radius: 14px;
      background: rgba(255,255,255,.06);
      color: var(--muted);
      margin-bottom: 14px;
    }
    .result-mini {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      padding: 12px 0;
      border-bottom: 1px dashed var(--border-soft);
      color: var(--muted);
      font-size: 14px;
    }
    .result-mini strong { color: var(--text); }

    .hot-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 16px;
    }
    .hot-card {
      padding: 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-soft);
      background: rgba(23, 24, 36, .78);
      transition: transform .2s ease, border-color .2s ease, background .2s ease;
    }
    .hot-card:hover {
      transform: translateY(-4px);
      border-color: rgba(216, 180, 93, .45);
      background: rgba(32, 34, 49, .92);
    }
    .hot-card .num {
      font-size: 28px;
      font-weight: 960;
      color: var(--gold-2);
      line-height: 1;
    }
    .hot-card h3 { margin: 14px 0 8px; font-size: 18px; font-weight: 910; }
    .hot-card p { margin: 0 0 16px; color: var(--muted); font-size: 14px; }

    .timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }
    .milestone-box { padding: 22px; }
    .milestone-box strong {
      color: var(--gold-2);
      font-size: 22px;
      display: block;
      margin-bottom: 10px;
    }
    .milestone-box p { margin: 0; color: var(--muted); font-size: 14px; }

    .accordion {
      --bs-accordion-bg: transparent;
      --bs-accordion-border-color: var(--border-soft);
      --bs-accordion-btn-color: var(--text);
      --bs-accordion-active-color: var(--gold-2);
      --bs-accordion-active-bg: rgba(216, 180, 93, .08);
      --bs-accordion-color: var(--muted);
    }
    .accordion-item {
      border-radius: 16px !important;
      overflow: hidden;
      margin-bottom: 12px;
      background: rgba(23, 24, 36, .72);
      border: 1px solid var(--border-soft);
    }
    .accordion-button {
      font-weight: 880;
      box-shadow: none !important;
    }
    .accordion-button::after {
      filter: invert(1);
    }
    .accordion-body {
      color: var(--muted);
      padding-top: 0;
    }

    .limited {
      padding: 0 0 84px;
    }
    .limited-card {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 24px;
      align-items: center;
      padding: 34px;
      border-radius: var(--radius-lg);
      border: 1px solid rgba(216, 180, 93, .44);
      background:
        linear-gradient(135deg, rgba(216, 180, 93, .18), rgba(228, 79, 98, .14)),
        rgba(23, 24, 36, .9);
      box-shadow: var(--shadow);
    }
    .limited-card h2 {
      margin: 0;
      font-size: clamp(26px, 4vw, 42px);
      font-weight: 950;
      line-height: 1.18;
    }
    .limited-card p {
      margin: 12px 0 0;
      color: var(--muted);
      max-width: 760px;
    }

    .site-footer {
      border-top: 1px solid var(--border-soft);
      background: #07070a;
      padding: 42px 0 28px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 24px;
      align-items: start;
    }
    .footer-brand {
      font-size: 20px;
      font-weight: 950;
      color: var(--gold-2);
      margin-bottom: 10px;
    }
    .footer-text {
      color: var(--muted);
      max-width: 720px;
      margin: 0;
      font-size: 14px;
    }
    .footer-links {
      display: flex;
      justify-content: flex-end;
      gap: 14px;
      flex-wrap: wrap;
    }
    .footer-links a {
      color: var(--muted);
      border-bottom: 1px solid transparent;
    }
    .footer-links a:hover {
      color: var(--gold-2);
      border-color: var(--gold);
    }
    .copyright {
      margin-top: 26px;
      padding-top: 18px;
      border-top: 1px solid var(--border-soft);
      color: var(--weak);
      font-size: 13px;
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
    }

    @media (max-width: 1024px) {
      .hero-grid,
      .tier-track,
      .news-layout,
      .scenario-wrap {
        grid-template-columns: 1fr;
      }
      .lead-form,
      .whitepaper-cover {
        border-left: 0;
        border-right: 0;
      }
      .form-panel { position: static; }
      .assurance-bar,
      .hot-grid,
      .timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .pricing-grid { grid-template-columns: 1fr; }
      .limited-card { grid-template-columns: 1fr; }
    }

    @media (max-width: 768px) {
      .navbar-collapse {
        margin-top: 14px;
        padding: 14px;
        border: 1px solid var(--border-soft);
        border-radius: 18px;
        background: rgba(17, 18, 26, .96);
      }
      .nav-cta { margin: 10px 0 0; width: 100%; justify-content: center; }
      .section { padding: 58px 0; }
      .hero { min-height: auto; padding-top: 28px; }
      .hero-grid { min-height: auto; }
      .hero-copy,
      .lead-form,
      .whitepaper-cover { padding: 24px; }
      .cover-card { min-height: 340px; }
      .hero-metrics { grid-template-columns: 1fr; }
      .section-head { display: block; }
      .countdown { grid-template-columns: 1fr; text-align: center; }
      .deal-row { grid-template-columns: 58px 1fr; }
      .deal-row .stock { grid-column: 2; }
      .news-item { grid-template-columns: 1fr; gap: 8px; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-links { justify-content: flex-start; }
    }

    @media (max-width: 520px) {
      .container-site { width: min(100% - 22px, var(--container)); }
      .brand-logo span:last-child { max-width: 210px; white-space: normal; line-height: 1.2; }
      .assurance-bar,
      .hot-grid,
      .timeline {
        grid-template-columns: 1fr;
      }
      .time-boxes {
        flex-wrap: wrap;
      }
      .hero-actions .btn-gold,
      .hero-actions .btn-darkline,
      .hero-actions .btn-red,
      .limited-card .btn-gold,
      .limited-card .btn-darkline {
        width: 100%;
      }
      .price { font-size: 32px; }
      .limited-card { padding: 24px; }
    }

/* roulang page: category1 */
:root {
      --bg: #08090d;
      --bg-soft: #11131b;
      --panel: #151823;
      --panel-2: #1d2030;
      --gold: #d7b66b;
      --gold-2: #f2dc9a;
      --cyan: #57d6d4;
      --rose: #e86b8d;
      --text: #f7f3ea;
      --muted: #b8b2a6;
      --dim: #817b72;
      --border: rgba(215, 182, 107, .22);
      --border-soft: rgba(255, 255, 255, .08);
      --shadow: 0 24px 70px rgba(0, 0, 0, .42);
      --shadow-soft: 0 16px 40px rgba(0, 0, 0, .28);
      --radius-xl: 28px;
      --radius-lg: 22px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --container: 1180px;
      --ease: all .22s ease;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      min-height: 100vh;
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(215, 182, 107, .14), transparent 34%),
        radial-gradient(circle at 85% 14%, rgba(87, 214, 212, .12), transparent 32%),
        linear-gradient(180deg, #06070b 0%, #0a0c12 46%, #08090d 100%);
      line-height: 1.75;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--ease);
    }

    a:hover {
      color: var(--gold-2);
    }

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

    button,
    input {
      font: inherit;
    }

    button:focus-visible,
    input:focus-visible,
    a:focus-visible {
      outline: 3px solid rgba(87, 214, 212, .55);
      outline-offset: 3px;
      border-radius: 10px;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(8, 9, 13, .84);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--border-soft);
      box-shadow: 0 14px 34px rgba(0, 0, 0, .2);
    }

    .navbar {
      padding: 14px 0;
    }

    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      color: var(--text);
      font-weight: 900;
      font-size: 19px;
      letter-spacing: 0;
      white-space: nowrap;
    }

    .brand-logo:hover {
      color: var(--gold-2);
      transform: translateY(-1px);
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      display: inline-grid;
      place-items: center;
      color: #12100a;
      background: linear-gradient(135deg, var(--gold-2), var(--gold));
      border-radius: 14px;
      box-shadow: 0 10px 24px rgba(215, 182, 107, .28);
    }

    .navbar-toggler {
      border: 1px solid var(--border);
      color: var(--gold-2);
      background: rgba(215, 182, 107, .08);
      border-radius: 14px;
      padding: 10px 12px;
      box-shadow: none;
    }

    .navbar-toggler:focus {
      box-shadow: 0 0 0 4px rgba(215, 182, 107, .16);
    }

    .navbar-nav {
      gap: 8px;
      margin-right: 16px;
    }

    .nav-link {
      color: var(--muted);
      font-weight: 700;
      padding: 10px 14px !important;
      border-radius: 999px;
      position: relative;
    }

    .nav-link:hover {
      color: var(--text);
      background: rgba(255, 255, 255, .06);
    }

    .nav-link.active {
      color: #141006 !important;
      background: linear-gradient(135deg, var(--gold-2), var(--gold));
      box-shadow: 0 12px 28px rgba(215, 182, 107, .22);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 42px;
      padding: 10px 16px;
      color: var(--text);
      font-weight: 800;
      border-radius: 999px;
      border: 1px solid rgba(87, 214, 212, .35);
      background: rgba(87, 214, 212, .1);
      white-space: nowrap;
    }

    .nav-cta:hover {
      color: #041010;
      background: var(--cyan);
      transform: translateY(-1px);
      box-shadow: 0 14px 32px rgba(87, 214, 212, .18);
    }

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

    .section-tight {
      padding: 64px 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      border: 1px solid var(--border);
      color: var(--gold-2);
      background: rgba(215, 182, 107, .08);
      font-size: 14px;
      font-weight: 800;
    }

    .hero {
      padding: 46px 0 74px;
    }

    .hero-summary {
      max-width: 860px;
      margin-bottom: 28px;
    }

    .hero h1 {
      margin: 18px 0 16px;
      font-size: clamp(34px, 5vw, 66px);
      line-height: 1.08;
      font-weight: 950;
      letter-spacing: 0;
    }

    .hero-lead {
      color: var(--muted);
      font-size: 18px;
      max-width: 760px;
      margin: 0;
    }

    .bento {
      display: grid;
      grid-template-columns: 1.35fr .85fr;
      grid-template-rows: auto auto;
      gap: 18px;
      align-items: stretch;
    }

    .bento-main,
    .bento-card,
    .cta-strip,
    .panel-card {
      border: 1px solid var(--border-soft);
      background: linear-gradient(180deg, rgba(28, 31, 44, .92), rgba(14, 16, 24, .94));
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow-soft);
      overflow: hidden;
    }

    .bento-main {
      min-height: 410px;
      grid-row: span 2;
      position: relative;
      padding: 32px;
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      isolation: isolate;
    }

    .bento-main::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(180deg, rgba(8, 9, 13, .2), rgba(8, 9, 13, .9)),
        url("https://images.unsplash.com/photo-1497366754035-f200968a6e72?auto=format&fit=crop&w=1200&q=80") center/cover;
      z-index: -2;
    }

    .bento-main::after {
      content: "";
      position: absolute;
      inset: 16px;
      border: 1px solid rgba(242, 220, 154, .28);
      border-radius: 22px;
      z-index: -1;
      pointer-events: none;
    }

    .live-label {
      width: fit-content;
      display: inline-flex;
      align-items: center;
      gap: 9px;
      padding: 8px 13px;
      border-radius: 999px;
      color: #171006;
      background: var(--gold-2);
      font-weight: 900;
      margin-bottom: 18px;
    }

    .pulse-dot {
      width: 9px;
      height: 9px;
      border-radius: 50%;
      background: #c9184a;
      box-shadow: 0 0 0 8px rgba(201, 24, 74, .18);
    }

    .bento-main h2 {
      font-size: clamp(25px, 3vw, 40px);
      line-height: 1.18;
      margin: 0 0 12px;
      font-weight: 920;
    }

    .bento-main p {
      margin: 0;
      color: #ded8cd;
      max-width: 660px;
    }

    .bento-card {
      padding: 24px;
      min-height: 196px;
      position: relative;
    }

    .bento-card:hover,
    .panel-card:hover,
    .benefit-card:hover {
      transform: translateY(-4px);
      border-color: rgba(215, 182, 107, .38);
      box-shadow: var(--shadow);
    }

    .card-icon {
      width: 46px;
      height: 46px;
      display: grid;
      place-items: center;
      border-radius: 16px;
      color: #0b1212;
      background: linear-gradient(135deg, var(--cyan), #baf3ef);
      margin-bottom: 16px;
    }

    .countdown {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      margin-top: 18px;
    }

    .timebox {
      text-align: center;
      padding: 12px 8px;
      border-radius: 14px;
      background: rgba(255, 255, 255, .055);
      border: 1px solid var(--border-soft);
    }

    .timebox strong {
      display: block;
      font-size: 24px;
      line-height: 1;
      color: var(--gold-2);
    }

    .timebox span {
      display: block;
      margin-top: 6px;
      font-size: 12px;
      color: var(--dim);
    }

    .status-list {
      list-style: none;
      padding: 0;
      margin: 16px 0 0;
      display: grid;
      gap: 10px;
    }

    .status-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: var(--muted);
      font-size: 15px;
    }

    .status-list i {
      color: var(--gold-2);
      margin-top: 5px;
    }

    .cta-strip {
      margin-top: 18px;
      padding: 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      border-color: rgba(215, 182, 107, .24);
      background: linear-gradient(135deg, rgba(215, 182, 107, .13), rgba(87, 214, 212, .08));
    }

    .cta-strip p {
      margin: 0;
      color: var(--muted);
    }

    .btn-brand,
    .btn-ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 48px;
      padding: 12px 20px;
      border-radius: 999px;
      font-weight: 900;
      border: 1px solid transparent;
      transition: var(--ease);
      white-space: nowrap;
    }

    .btn-brand {
      color: #151006;
      background: linear-gradient(135deg, var(--gold-2), var(--gold));
      box-shadow: 0 16px 34px rgba(215, 182, 107, .24);
    }

    .btn-brand:hover {
      color: #090703;
      transform: translateY(-2px);
      box-shadow: 0 20px 44px rgba(215, 182, 107, .32);
    }

    .btn-ghost {
      color: var(--text);
      background: rgba(255, 255, 255, .05);
      border-color: var(--border-soft);
    }

    .btn-ghost:hover {
      color: var(--gold-2);
      border-color: var(--border);
      background: rgba(215, 182, 107, .08);
      transform: translateY(-2px);
    }

    .section-head {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      gap: 26px;
      margin-bottom: 30px;
    }

    .section-head h2 {
      margin: 12px 0 0;
      font-size: clamp(26px, 3.2vw, 42px);
      line-height: 1.2;
      font-weight: 930;
    }

    .section-head p {
      margin: 0;
      color: var(--muted);
      max-width: 520px;
    }

    .ticker {
      border-block: 1px solid var(--border-soft);
      background: rgba(255, 255, 255, .035);
      overflow: hidden;
    }

    .ticker-track {
      display: flex;
      gap: 16px;
      padding: 15px 0;
      white-space: nowrap;
      animation: tickerMove 26s linear infinite;
    }

    .ticker-item {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      color: var(--muted);
      font-weight: 800;
    }

    .ticker-item i {
      color: var(--gold-2);
    }

    @keyframes tickerMove {
      from { transform: translateX(0); }
      to { transform: translateX(-50%); }
    }

    .benefit-grid {
      display: grid;
      grid-template-columns: .9fr 1.1fr 1fr;
      gap: 18px;
    }

    .benefit-card {
      padding: 24px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-soft);
      background: rgba(255, 255, 255, .045);
      transition: var(--ease);
    }

    .benefit-card.featured {
      background: linear-gradient(180deg, rgba(215, 182, 107, .14), rgba(255, 255, 255, .045));
      border-color: rgba(215, 182, 107, .28);
    }

    .badge-line {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 16px;
    }

    .badge-soft {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 10px;
      border-radius: 999px;
      background: rgba(215, 182, 107, .1);
      color: var(--gold-2);
      border: 1px solid rgba(215, 182, 107, .18);
      font-size: 13px;
      font-weight: 850;
    }

    .benefit-card h3,
    .panel-card h3,
    .bento-card h3 {
      font-size: 20px;
      margin: 0 0 10px;
      font-weight: 900;
    }

    .benefit-card p,
    .panel-card p,
    .bento-card p {
      color: var(--muted);
      margin: 0;
    }

    .stream-layout {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 22px;
      align-items: stretch;
    }

    .cover-panel {
      min-height: 470px;
      border-radius: var(--radius-xl);
      border: 1px solid rgba(215, 182, 107, .25);
      background:
        linear-gradient(180deg, rgba(8, 9, 13, .06), rgba(8, 9, 13, .92)),
        url("https://images.unsplash.com/photo-1517245386807-bb43f82c33c4?auto=format&fit=crop&w=1100&q=80") center/cover;
      box-shadow: var(--shadow);
      padding: 26px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      overflow: hidden;
    }

    .cover-top {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      align-items: flex-start;
    }

    .cover-title {
      max-width: 520px;
    }

    .cover-title h2 {
      margin: 14px 0 10px;
      font-size: clamp(26px, 3vw, 42px);
      line-height: 1.18;
      font-weight: 930;
    }

    .cover-title p {
      margin: 0;
      color: #ddd5c8;
    }

    .rank-box {
      min-width: 118px;
      text-align: center;
      padding: 14px;
      border-radius: 18px;
      background: rgba(8, 9, 13, .72);
      border: 1px solid rgba(242, 220, 154, .22);
    }

    .rank-box strong {
      display: block;
      color: var(--gold-2);
      font-size: 30px;
      line-height: 1;
    }

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

    .flow-stack {
      display: grid;
      gap: 14px;
    }

    .flow-item {
      display: grid;
      grid-template-columns: 42px 1fr;
      gap: 14px;
      padding: 18px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-soft);
      background: rgba(255, 255, 255, .045);
    }

    .flow-no {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      color: #161006;
      background: var(--gold-2);
      font-weight: 950;
    }

    .flow-item h3 {
      margin: 0 0 6px;
      font-size: 18px;
      font-weight: 900;
    }

    .flow-item p {
      margin: 0;
      color: var(--muted);
      font-size: 15px;
    }

    .split-band {
      background: linear-gradient(180deg, rgba(255, 255, 255, .035), rgba(255, 255, 255, .015));
      border-block: 1px solid var(--border-soft);
    }

    .check-panel {
      display: grid;
      grid-template-columns: .82fr 1.18fr;
      gap: 22px;
      align-items: start;
    }

    .notice-card {
      padding: 28px;
      border-radius: var(--radius-xl);
      border: 1px solid rgba(232, 107, 141, .3);
      background: linear-gradient(180deg, rgba(232, 107, 141, .11), rgba(255, 255, 255, .035));
      position: sticky;
      top: 94px;
    }

    .notice-card h2 {
      font-size: 28px;
      margin: 0 0 12px;
      font-weight: 930;
    }

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

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

    .check-row {
      display: grid;
      grid-template-columns: 36px 1fr auto;
      gap: 14px;
      align-items: center;
      padding: 18px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-soft);
      background: rgba(255, 255, 255, .04);
    }

    .check-row i {
      width: 36px;
      height: 36px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      background: rgba(87, 214, 212, .12);
      color: var(--cyan);
    }

    .check-row h3 {
      margin: 0 0 4px;
      font-size: 17px;
      font-weight: 900;
    }

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

    .tag-state {
      color: var(--gold-2);
      font-size: 13px;
      font-weight: 850;
      padding: 6px 10px;
      border-radius: 999px;
      border: 1px solid var(--border);
      background: rgba(215, 182, 107, .08);
      white-space: nowrap;
    }

    .reminder-box {
      border-radius: var(--radius-xl);
      padding: 34px;
      border: 1px solid rgba(87, 214, 212, .24);
      background:
        linear-gradient(135deg, rgba(87, 214, 212, .12), rgba(215, 182, 107, .08)),
        rgba(255, 255, 255, .035);
      box-shadow: var(--shadow-soft);
    }

    .form-row {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 12px;
      margin-top: 22px;
    }

    .form-control-custom {
      min-height: 52px;
      width: 100%;
      border: 1px solid var(--border-soft);
      border-radius: 999px;
      color: var(--text);
      background: rgba(8, 9, 13, .58);
      padding: 0 18px;
      transition: var(--ease);
    }

    .form-control-custom::placeholder {
      color: var(--dim);
    }

    .form-control-custom:focus {
      border-color: rgba(87, 214, 212, .62);
      box-shadow: 0 0 0 4px rgba(87, 214, 212, .12);
      outline: none;
    }

    .fine-print {
      margin-top: 12px;
      color: var(--dim);
      font-size: 13px;
    }

    .faq-wrap {
      display: grid;
      grid-template-columns: .72fr 1.28fr;
      gap: 24px;
      align-items: start;
    }

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

    .accordion-item {
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-md) !important;
      overflow: hidden;
      background: rgba(255, 255, 255, .04);
      color: var(--text);
    }

    .accordion-button {
      background: transparent;
      color: var(--text);
      font-weight: 900;
      padding: 18px 20px;
      box-shadow: none;
    }

    .accordion-button:not(.collapsed) {
      color: var(--gold-2);
      background: rgba(215, 182, 107, .08);
      box-shadow: none;
    }

    .accordion-button::after {
      filter: invert(1) sepia(.5) saturate(2);
    }

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

    .final-cta {
      border-radius: var(--radius-xl);
      padding: 42px;
      background:
        linear-gradient(135deg, rgba(215, 182, 107, .18), rgba(87, 214, 212, .1)),
        linear-gradient(180deg, rgba(255, 255, 255, .06), rgba(255, 255, 255, .025));
      border: 1px solid rgba(215, 182, 107, .25);
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 24px;
      align-items: center;
      box-shadow: var(--shadow-soft);
    }

    .final-cta h2 {
      margin: 0 0 12px;
      font-size: clamp(26px, 3vw, 42px);
      font-weight: 930;
      line-height: 1.2;
    }

    .final-cta p {
      color: var(--muted);
      margin: 0;
    }

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

    .site-footer {
      padding: 54px 0 28px;
      background: #050609;
      border-top: 1px solid var(--border-soft);
    }

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

    .footer-brand {
      color: var(--text);
      font-size: 22px;
      font-weight: 950;
      margin-bottom: 12px;
    }

    .footer-text {
      color: var(--muted);
      max-width: 720px;
      margin: 0;
    }

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

    .footer-links a {
      color: var(--muted);
      padding: 8px 11px;
      border-radius: 999px;
      border: 1px solid transparent;
    }

    .footer-links a:hover {
      color: var(--gold-2);
      border-color: var(--border);
      background: rgba(215, 182, 107, .06);
    }

    .copyright {
      margin-top: 32px;
      padding-top: 20px;
      border-top: 1px solid var(--border-soft);
      display: flex;
      justify-content: space-between;
      gap: 14px;
      color: var(--dim);
      font-size: 14px;
      flex-wrap: wrap;
    }

    @media (max-width: 1024px) {
      .bento,
      .stream-layout,
      .check-panel,
      .faq-wrap,
      .final-cta {
        grid-template-columns: 1fr;
      }

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

      .notice-card {
        position: static;
      }

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

    @media (max-width: 991px) {
      .navbar-collapse {
        margin-top: 14px;
        padding: 16px;
        border: 1px solid var(--border-soft);
        border-radius: var(--radius-lg);
        background: rgba(15, 17, 25, .98);
      }

      .navbar-nav {
        align-items: stretch !important;
        margin-right: 0;
      }

      .nav-link {
        border-radius: 14px;
      }

      .nav-cta {
        margin-top: 12px;
        width: 100%;
      }
    }

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

      .section {
        padding: 62px 0;
      }

      .hero {
        padding-top: 34px;
      }

      .bento-main {
        min-height: 360px;
        padding: 24px;
      }

      .section-head {
        display: block;
      }

      .section-head p {
        margin-top: 12px;
      }

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

      .cover-top,
      .cta-strip,
      .check-row,
      .footer-grid {
        grid-template-columns: 1fr;
        display: grid;
      }

      .rank-box {
        width: fit-content;
      }

      .form-row {
        grid-template-columns: 1fr;
      }

      .btn-brand,
      .btn-ghost {
        width: 100%;
      }

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

    @media (max-width: 520px) {
      .brand-logo {
        font-size: 16px;
        gap: 9px;
        max-width: calc(100vw - 96px);
      }

      .brand-mark {
        width: 38px;
        height: 38px;
        border-radius: 13px;
        flex: 0 0 auto;
      }

      .hero h1 {
        font-size: 32px;
      }

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

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

      .bento-card,
      .benefit-card,
      .reminder-box,
      .final-cta {
        padding: 22px;
        border-radius: 20px;
      }

      .cover-panel {
        min-height: 420px;
        padding: 22px;
      }

      .check-row {
        grid-template-columns: 34px 1fr;
      }

      .tag-state {
        grid-column: 2;
        width: fit-content;
      }

      .copyright {
        display: grid;
      }
    }