/* roulang page: index */
:root {
      --ink: #161b2d;
      --muted: #687084;
      --paper: #f7f8fb;
      --white: #fff;
      --line: #e5e8ef;
      --violet: #6d4aff;
      --violet-dark: #5132d4;
      --coral: #ff765e;
      --mint: #b8efd9;
      --yellow: #ffd875;
      --shadow: 0 18px 50px rgba(26, 31, 57, .12);
      --soft-shadow: 0 8px 24px rgba(26, 31, 57, .08);
      --radius: 18px;
      --container: 1180px;
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      background: var(--paper);
      color: var(--ink);
      font-family: "Noto Sans SC", "DM Sans", sans-serif;
      line-height: 1.7;
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; }
    button, input { font: inherit; }
    button { border: 0; cursor: pointer; }
    img { display: block; max-width: 100%; }
    .container { width: min(var(--container), calc(100% - 48px)); margin: 0 auto; }
    .topbar {
      position: fixed; z-index: 20; top: 0; width: 100%;
      border-bottom: 1px solid rgba(255,255,255,.12);
      background: rgba(17,24,39,.72); backdrop-filter: blur(18px);
    }
    .nav {
      height: 76px; display: flex; align-items: center; justify-content: space-between;
    }
    .brand { color: var(--white); font-size: 20px; font-weight: 900; letter-spacing: -.04em; }
    .brand span { color: var(--yellow); }
    .nav-actions { display: flex; align-items: center; gap: 14px; }
    .menu-btn {
      width: 44px; height: 44px; border: 1px solid rgba(255,255,255,.22);
      border-radius: 12px; color: #fff; background: rgba(255,255,255,.08);
      display: grid; place-items: center; transition: .25s;
    }
    .menu-btn:hover, .menu-btn:focus-visible { background: var(--violet); outline: 3px solid rgba(184,239,217,.45); }
    .menu-icon, .menu-icon:before, .menu-icon:after { content: ""; display: block; width: 19px; height: 2px; background: currentColor; position: relative; transition: .25s; }
    .menu-icon:before { position: absolute; top: -6px; }
    .menu-icon:after { position: absolute; top: 6px; }
    .nav-cta, .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 10px; font-weight: 700; transition: .25s; }
    .nav-cta { padding: 10px 17px; color: var(--ink); background: var(--yellow); font-size: 14px; }
    .nav-cta:hover { transform: translateY(-2px); background: #ffe59d; }
    .drawer {
      position: fixed; z-index: 30; inset: 0; visibility: hidden; opacity: 0;
      background: rgba(15,18,31,.7); transition: .3s;
    }
    .drawer.open { visibility: visible; opacity: 1; }
    .drawer-panel { margin-left: auto; width: min(390px, 88vw); height: 100%; padding: 34px; background: #171d31; color: #fff; transform: translateX(100%); transition: .35s; }
    .drawer.open .drawer-panel { transform: translateX(0); }
    .drawer-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 54px; }
    .close-btn { color: #fff; background: transparent; font-size: 30px; line-height: 1; }
    .drawer nav a { display: block; border-bottom: 1px solid rgba(255,255,255,.12); padding: 18px 0; font-size: 24px; font-weight: 700; }
    .drawer nav a.active { color: var(--yellow); }
    .hero { min-height: 720px; position: relative; display: flex; align-items: flex-end; color: #fff; overflow: hidden; }
    .hero-media { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(13,18,35,.92) 0%, rgba(13,18,35,.56) 48%, rgba(13,18,35,.32) 100%), url("https://images.unsplash.com/photo-1489599849927-2ee91cede3ba?auto=format&fit=crop&w=2000&q=90") center/cover; }
    .hero-content { position: relative; z-index: 1; padding: 150px 0 76px; width: min(760px, 100%); }
    .eyebrow, .tag { display: inline-flex; align-items: center; gap: 7px; color: var(--yellow); font-size: 13px; font-weight: 700; letter-spacing: .08em; }
    .eyebrow:before { content: ""; width: 24px; height: 2px; background: var(--yellow); }
    h1 { margin: 19px 0 20px; max-width: 760px; font-size: clamp(40px, 6vw, 72px); line-height: 1.13; letter-spacing: -.055em; }
    .hero-copy { max-width: 650px; color: rgba(255,255,255,.82); font-size: 17px; }
    .hero-buttons { display: flex; flex-wrap: wrap; gap: 12px; margin: 32px 0 40px; }
    .btn { padding: 13px 21px; border: 1px solid transparent; }
    .btn-primary { background: var(--yellow); color: var(--ink); }
    .btn-primary:hover { background: #ffe59d; transform: translateY(-2px); }
    .btn-ghost { color: #fff; border-color: rgba(255,255,255,.35); background: rgba(255,255,255,.1); }
    .btn-ghost:hover { background: rgba(255,255,255,.2); }
    .hero-stats { display: flex; flex-wrap: wrap; gap: 30px; }
    .hero-stat strong { display: block; color: var(--mint); font-size: 24px; line-height: 1.2; }
    .hero-stat span { color: rgba(255,255,255,.72); font-size: 14px; }
    .countdown {
      position: relative; z-index: 2; margin-top: -36px;
    }
    .countdown-inner {
      display: grid; grid-template-columns: 1.25fr repeat(4, 110px) auto; gap: 12px; align-items: center;
      padding: 18px; border-radius: 22px; background: rgba(255,255,255,.96);
      box-shadow: var(--shadow); border: 1px solid rgba(255,255,255,.6);
    }
    .count-title strong { display: block; font-size: 18px; }
    .count-title span { color: var(--muted); font-size: 13px; }
    .timebox { text-align: center; padding: 12px 10px; border-radius: 16px; background: #111827; color: #fff; }
    .timebox b { display: block; font-size: 24px; line-height: 1.1; color: var(--yellow); }
    .timebox small { color: rgba(255,255,255,.72); }
    main { position: relative; }
    section { padding: 78px 0; }
    .section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
    .section-kicker { color: var(--violet); font-weight: 800; font-size: 13px; letter-spacing: .08em; }
    h2 { font-size: clamp(28px, 3.2vw, 44px); line-height: 1.25; letter-spacing: -.035em; margin-top: 6px; }
    .section-head p { max-width: 520px; color: var(--muted); font-size: 16px; }
    .coupon-grid {
      display: grid; grid-template-columns: 1.25fr .85fr .85fr; gap: 18px;
    }
    .coupon {
      position: relative; min-height: 230px; padding: 26px; border-radius: 24px; overflow: hidden;
      background: var(--white); border: 1px solid var(--line); box-shadow: var(--soft-shadow);
      transition: .25s;
    }
    .coupon:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
    .coupon.featured { background: linear-gradient(135deg, #201d39 0%, #6d4aff 100%); color: #fff; grid-row: span 2; }
    .coupon:after {
      content: ""; position: absolute; right: -34px; bottom: -34px; width: 118px; height: 118px;
      border-radius: 50%; background: rgba(255,216,117,.32);
    }
    .coupon .icon {
      width: 48px; height: 48px; border-radius: 15px; display: grid; place-items: center;
      background: #f0edff; color: var(--violet); font-size: 22px; margin-bottom: 22px;
    }
    .coupon.featured .icon { background: rgba(255,255,255,.14); color: var(--yellow); }
    .coupon h3 { font-size: 24px; line-height: 1.25; margin-bottom: 12px; letter-spacing: -.02em; }
    .coupon p { color: var(--muted); max-width: 360px; }
    .coupon.featured p { color: rgba(255,255,255,.78); }
    .coupon-code {
      display: inline-flex; margin-top: 22px; padding: 8px 13px; border-radius: 999px;
      background: rgba(255,216,117,.18); color: var(--yellow); font-weight: 800; font-size: 13px;
    }
    .rules-wrap { display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; align-items: stretch; }
    .rule-panel {
      padding: 32px; border-radius: 28px; background: #171d31; color: #fff; overflow: hidden; position: relative;
    }
    .rule-panel:before {
      content: ""; position: absolute; width: 240px; height: 240px; right: -100px; top: -90px;
      background: radial-gradient(circle, rgba(255,216,117,.5), transparent 65%);
    }
    .rule-panel h2 { position: relative; }
    .rule-panel p { position: relative; margin-top: 16px; color: rgba(255,255,255,.75); }
    .rule-list { display: grid; gap: 14px; }
    .rule-item {
      display: grid; grid-template-columns: 44px 1fr; gap: 14px; align-items: start;
      padding: 18px; border-radius: 18px; background: #fff; border: 1px solid var(--line);
      box-shadow: 0 10px 22px rgba(20,24,40,.05);
    }
    .rule-num {
      width: 44px; height: 44px; border-radius: 14px; display: grid; place-items: center;
      background: #f1edff; color: var(--violet); font-weight: 900;
    }
    .rule-item h3 { font-size: 18px; margin-bottom: 4px; }
    .rule-item p { color: var(--muted); font-size: 14px; }
    .triple {
      background: linear-gradient(180deg, #fff 0%, #f7f8fb 100%);
    }
    .triple-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .sell-card {
      min-height: 245px; padding: 26px; border-radius: 26px; color: #fff; position: relative; overflow: hidden;
      box-shadow: var(--shadow); transition: .25s;
    }
    .sell-card:hover { transform: translateY(-6px); }
    .sell-card:nth-child(1) { background: linear-gradient(135deg, #6d4aff, #a68cff); }
    .sell-card:nth-child(2) { background: linear-gradient(135deg, #111827, #374151); }
    .sell-card:nth-child(3) { background: linear-gradient(135deg, #ff765e, #ffb36d); }
    .sell-card .mini-icon {
      width: 54px; height: 54px; border-radius: 18px; display: grid; place-items: center;
      background: rgba(255,255,255,.16); font-size: 26px; margin-bottom: 34px;
    }
    .sell-card h3 { font-size: 24px; margin-bottom: 10px; }
    .sell-card p { color: rgba(255,255,255,.82); }
    .classify {
      display: grid; grid-template-columns: .86fr 1.14fr; gap: 28px; align-items: start;
    }
    .poster-stack {
      min-height: 440px; border-radius: 30px; padding: 24px; background:
      linear-gradient(180deg, rgba(109,74,255,.18), rgba(255,118,94,.12)),
      url("https://images.unsplash.com/photo-1440404653325-ab127d49abc1?auto=format&fit=crop&w=1000&q=85") center/cover;
      display: flex; align-items: flex-end; box-shadow: var(--shadow); overflow: hidden;
    }
    .poster-note {
      width: 100%; padding: 20px; border-radius: 20px; background: rgba(17,24,39,.78);
      color: #fff; backdrop-filter: blur(14px);
    }
    .topic-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .topic {
      padding: 22px; border-radius: 22px; background: #fff; border: 1px solid var(--line); transition: .25s;
    }
    .topic:hover { border-color: rgba(109,74,255,.35); transform: translateY(-3px); box-shadow: var(--soft-shadow); }
    .topic b { display: block; font-size: 19px; margin-bottom: 8px; }
    .topic span { color: var(--muted); font-size: 14px; }
    .rights {
      padding-top: 58px; padding-bottom: 58px; background: #171d31; color: #fff;
    }
    .rights-grid {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
    }
    .right-item {
      padding: 22px; border-radius: 18px; background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.1);
    }
    .right-item i { font-style: normal; font-size: 28px; display: block; margin-bottom: 10px; }
    .right-item strong { display: block; margin-bottom: 5px; }
    .right-item span { color: rgba(255,255,255,.68); font-size: 13px; }
    .member-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .member-card {
      padding: 24px; border-radius: 24px; background: #fff; border: 1px solid var(--line); min-height: 180px;
      transition: .25s;
    }
    .member-card:hover { transform: translateY(-4px); box-shadow: var(--soft-shadow); }
    .member-card h3 { font-size: 19px; margin: 14px 0 8px; }
    .member-card p { color: var(--muted); font-size: 14px; }
    .member-card .badge {
      width: fit-content; padding: 5px 10px; border-radius: 999px; background: #f1edff; color: var(--violet); font-weight: 800; font-size: 12px;
    }
    .price-zone { background: #fff; }
    .plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: stretch; }
    .plan {
      padding: 28px; border-radius: 26px; border: 1px solid var(--line); background: #fff; position: relative;
      display: flex; flex-direction: column; gap: 18px; transition: .25s;
    }
    .plan:hover { transform: translateY(-4px); box-shadow: var(--soft-shadow); }
    .plan.recommend { border-color: rgba(109,74,255,.45); box-shadow: var(--shadow); background: linear-gradient(180deg, #fff 0%, #f6f3ff 100%); }
    .plan .mark {
      position: absolute; right: 22px; top: 22px; padding: 5px 10px; border-radius: 999px;
      background: var(--coral); color: #fff; font-size: 12px; font-weight: 800;
    }
    .price { font-size: 34px; font-weight: 900; letter-spacing: -.04em; }
    .price small { color: var(--muted); font-size: 14px; font-weight: 500; }
    .check-list { list-style: none; display: grid; gap: 10px; color: var(--muted); font-size: 14px; }
    .check-list li:before { content: "✓"; margin-right: 8px; color: var(--violet); font-weight: 900; }
    .plan .btn { margin-top: auto; width: 100%; }
    .news-layout { display: grid; grid-template-columns: 1.25fr .75fr; gap: 24px; }
    .news-list {
      background: #fff; border-radius: 26px; border: 1px solid var(--line); overflow: hidden; box-shadow: var(--soft-shadow);
    }
    .news-link {
      display: grid; grid-template-columns: 120px 1fr auto; gap: 18px; align-items: center;
      padding: 20px 22px; border-bottom: 1px solid var(--line); transition: .25s;
    }
    .news-link:last-child { border-bottom: 0; }
    .news-link:hover { background: #faf9ff; }
    .news-link time { color: var(--violet); font-weight: 800; font-size: 13px; }
    .news-link strong { font-size: 18px; }
    .news-link span { color: var(--muted); font-size: 14px; margin-top: 3px; display: block; }
    .arrow { color: var(--coral); font-weight: 900; }
    .recommend-box {
      border-radius: 26px; padding: 26px; background: linear-gradient(135deg, #171d31, #31245a); color: #fff; min-height: 100%;
    }
    .recommend-box p { color: rgba(255,255,255,.72); margin: 12px 0 22px; }
    .mini-list { list-style: none; display: grid; gap: 12px; }
    .mini-list li { padding: 12px; border-radius: 14px; background: rgba(255,255,255,.08); color: rgba(255,255,255,.82); }
    .faq-wrap { display: grid; grid-template-columns: .7fr 1.3fr; gap: 28px; align-items: start; }
    .faq-aside {
      position: sticky; top: 100px; padding: 28px; border-radius: 26px; background: #fff; border: 1px solid var(--line);
    }
    .faq-aside p { color: var(--muted); margin-top: 10px; }
    .faq-list { display: grid; gap: 14px; }
    details {
      background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 18px 20px; box-shadow: 0 6px 18px rgba(17,24,39,.04);
    }
    summary { cursor: pointer; font-weight: 800; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
    summary::-webkit-details-marker { display: none; }
    summary:after { content: "+"; color: var(--violet); font-size: 24px; line-height: 1; }
    details[open] summary:after { content: "−"; }
    details p { margin-top: 12px; color: var(--muted); }
    .use-cta { padding-bottom: 110px; }
    .cta-card {
      position: relative; overflow: hidden; padding: 42px; border-radius: 32px; color: #fff;
      background: linear-gradient(135deg, #6d4aff 0%, #171d31 68%);
      display: grid; grid-template-columns: 1.2fr .8fr; gap: 24px; align-items: center; box-shadow: var(--shadow);
    }
    .cta-card:before {
      content: ""; position: absolute; width: 320px; height: 320px; right: -130px; top: -140px;
      background: radial-gradient(circle, rgba(255,216,117,.62), transparent 65%);
    }
    .cta-card h2, .cta-card p, .cta-actions { position: relative; }
    .cta-card p { color: rgba(255,255,255,.78); margin-top: 14px; max-width: 650px; }
    .cta-actions { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 12px; }
    .floating-cta {
      position: fixed; z-index: 18; left: 50%; bottom: 18px; transform: translateX(-50%);
      width: min(920px, calc(100% - 32px)); padding: 12px 14px 12px 18px; border-radius: 18px;
      background: rgba(17,24,39,.9); color: #fff; backdrop-filter: blur(18px);
      border: 1px solid rgba(255,255,255,.14); box-shadow: 0 18px 40px rgba(0,0,0,.22);
      display: flex; align-items: center; justify-content: space-between; gap: 14px;
    }
    .floating-cta strong { font-size: 15px; }
    .floating-cta span { color: rgba(255,255,255,.68); font-size: 13px; }
    footer {
      background: #0f1424; color: #fff; padding: 56px 0 92px;
    }
    .footer-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 28px; }
    .footer-brand { font-size: 22px; font-weight: 900; letter-spacing: -.03em; margin-bottom: 12px; }
    footer p, footer a { color: rgba(255,255,255,.66); font-size: 14px; }
    footer a:hover { color: var(--yellow); }
    .footer-links { display: grid; gap: 8px; }
    .copyright {
      margin-top: 32px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1);
      display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
    }
    @media (max-width: 1024px) {
      .countdown-inner { grid-template-columns: 1fr repeat(4, 1fr); }
      .countdown-inner .btn { grid-column: 1 / -1; }
      .coupon-grid, .rules-wrap, .classify, .news-layout, .faq-wrap, .cta-card { grid-template-columns: 1fr; }
      .coupon.featured { grid-row: auto; }
      .member-grid, .rights-grid { grid-template-columns: repeat(2, 1fr); }
      .plans, .triple-grid { grid-template-columns: 1fr; }
      .faq-aside { position: static; }
    }
    @media (max-width: 768px) {
      .container { width: min(100% - 32px, var(--container)); }
      .nav { height: 66px; }
      .nav-cta { display: none; }
      .hero { min-height: 660px; }
      .hero-content { padding-top: 120px; padding-bottom: 70px; }
      .countdown { margin-top: -24px; }
      .countdown-inner { grid-template-columns: repeat(2, 1fr); }
      .count-title { grid-column: 1 / -1; }
      .timebox b { font-size: 20px; }
      section { padding: 58px 0; }
      .section-head { display: block; }
      .section-head p { margin-top: 12px; }
      .topic-grid, .member-grid, .rights-grid { grid-template-columns: 1fr; }
      .news-link { grid-template-columns: 1fr; gap: 6px; }
      .cta-actions { justify-content: flex-start; }
      .footer-grid { grid-template-columns: 1fr; }
      .floating-cta { align-items: flex-start; flex-direction: column; }
      .floating-cta .btn { width: 100%; }
    }
    @media (max-width: 520px) {
      h1 { font-size: 38px; }
      .hero-buttons .btn { width: 100%; }
      .hero-stats { gap: 18px; }
      .countdown-inner { padding: 12px; }
      .coupon, .rule-panel, .cta-card { padding: 22px; border-radius: 22px; }
      .drawer-panel { padding: 26px; }
      .poster-stack { min-height: 340px; }
    }