/* roulang page: index */
:root{
      --brand:#7357ff;
      --brand-dark:#4428c8;
      --brand-soft:#f4f1ff;
      --coral:#ff6b81;
      --gold:#ffbd4a;
      --mint:#2ed3b7;
      --ink:#172033;
      --muted:#667085;
      --weak:#98a2b3;
      --bg:#fbfbff;
      --surface:#ffffff;
      --line:#e8e6f4;
      --radius:24px;
      --radius-lg:34px;
      --shadow:0 18px 60px rgba(37, 28, 95, .12);
      --shadow-hover:0 24px 70px rgba(37, 28, 95, .18);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 8% 0%, rgba(115,87,255,.16), transparent 32rem),
        radial-gradient(circle at 92% 8%, rgba(255,107,129,.12), transparent 28rem),
        linear-gradient(180deg,#ffffff 0%,var(--bg) 42%,#ffffff 100%);
      line-height:1.72;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(115,87,255,.22)}
    .site-container{width:min(var(--container),calc(100% - 40px));margin-inline:auto}
    .skip-link{position:absolute;left:-999px;top:12px;background:var(--ink);color:#fff;padding:10px 14px;border-radius:12px;z-index:100}
    .skip-link:focus{left:12px}
    .header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:saturate(160%) blur(18px);
      background:rgba(255,255,255,.76);
      border-bottom:1px solid rgba(232,230,244,.78);
    }
    .nav{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .logo{
      display:flex;
      align-items:center;
      gap:12px;
      font-weight:900;
      letter-spacing:-.03em;
      color:var(--ink);
    }
    .logo-mark{
      width:42px;
      height:42px;
      border-radius:16px;
      display:grid;
      place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--brand),var(--coral));
      box-shadow:0 12px 28px rgba(115,87,255,.28);
      font-weight:900;
    }
    .logo-text{font-size:18px;white-space:nowrap}
    .nav-cta,.btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:0 18px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:800;
      transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
      cursor:pointer;
    }
    .nav-cta,.btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--brand),var(--coral));
      box-shadow:0 14px 34px rgba(115,87,255,.28);
    }
    .nav-cta:hover,.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
    .btn-secondary{
      color:var(--brand-dark);
      background:rgba(255,255,255,.9);
      border-color:rgba(115,87,255,.2);
      box-shadow:0 10px 28px rgba(37,28,95,.08);
    }
    .btn-secondary:hover{transform:translateY(-2px);border-color:rgba(115,87,255,.42);box-shadow:var(--shadow)}
    .btn-ghost{background:rgba(115,87,255,.08);color:var(--brand-dark)}
    .btn-ghost:hover{background:rgba(115,87,255,.14);transform:translateY(-2px)}
    .btn:focus-visible,.nav-cta:focus-visible,input:focus-visible,textarea:focus-visible,a:focus-visible{
      outline:3px solid rgba(115,87,255,.26);
      outline-offset:3px;
    }
    main{display:block}
    section{position:relative}
    .section-pad{padding:82px 0}
    .section-head{max-width:760px;margin-bottom:30px}
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      color:var(--brand-dark);
      background:rgba(115,87,255,.1);
      font-weight:800;
      font-size:14px;
      margin-bottom:14px;
    }
    .section-title{
      font-size:clamp(30px,4vw,46px);
      line-height:1.18;
      letter-spacing:-.045em;
      font-weight:950;
      color:var(--ink);
      margin:0 0 14px;
    }
    .section-desc{color:var(--muted);font-size:17px;margin:0}
    .hero{
      padding:34px 0 58px;
    }
    .creator-card{
      overflow:hidden;
      border:1px solid rgba(232,230,244,.82);
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.82);
      box-shadow:var(--shadow);
    }
    .cover{
      min-height:278px;
      padding:28px;
      background:
        linear-gradient(115deg,rgba(32,18,87,.92),rgba(90,61,241,.82) 46%,rgba(255,107,129,.76)),
        radial-gradient(circle at 76% 22%, rgba(255,255,255,.24), transparent 22rem);
      color:#fff;
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:24px;
      position:relative;
      isolation:isolate;
    }
    .cover:before{
      content:"";
      position:absolute;
      inset:18px;
      border:1px solid rgba(255,255,255,.18);
      border-radius:28px;
      pointer-events:none;
      z-index:-1;
    }
    .profile{
      display:flex;
      align-items:flex-end;
      gap:18px;
      max-width:760px;
    }
    .avatar{
      width:92px;
      height:92px;
      flex:0 0 auto;
      border-radius:30px;
      background:linear-gradient(135deg,#fff,var(--brand-soft));
      color:var(--brand-dark);
      display:grid;
      place-items:center;
      font-weight:950;
      font-size:26px;
      box-shadow:0 18px 38px rgba(0,0,0,.22);
      border:4px solid rgba(255,255,255,.66);
    }
    .nickname{font-weight:900;font-size:18px;opacity:.92;margin-bottom:7px}
    .hero h1{
      margin:0;
      font-size:clamp(34px,5.2vw,64px);
      line-height:1.05;
      letter-spacing:-.06em;
      font-weight:950;
      max-width:900px;
    }
    .follow-box{
      display:flex;
      flex-direction:column;
      align-items:flex-end;
      gap:12px;
      flex:0 0 auto;
    }
    .follow-note{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.16);
      border:1px solid rgba(255,255,255,.22);
      font-weight:800;
    }
    .hero-body{
      padding:28px;
      display:grid;
      grid-template-columns:1.35fr .65fr;
      gap:24px;
      align-items:stretch;
    }
    .hero-intro{
      border-radius:28px;
      background:linear-gradient(180deg,#fff,rgba(244,241,255,.68));
      border:1px solid rgba(232,230,244,.9);
      padding:24px;
    }
    .hero-intro p{
      margin:0 0 20px;
      color:var(--muted);
      font-size:18px;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
    .badge-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
    .data-badge{
      border-radius:24px;
      border:1px solid rgba(232,230,244,.9);
      background:#fff;
      padding:18px;
      min-height:128px;
      box-shadow:0 10px 24px rgba(37,28,95,.06);
    }
    .data-badge strong{
      display:block;
      font-size:29px;
      line-height:1.1;
      letter-spacing:-.04em;
      color:var(--brand-dark);
      margin-bottom:8px;
    }
    .data-badge span{font-size:14px;color:var(--muted)}
    .coupon-grid{
      display:grid;
      grid-template-columns:1.05fr .95fr 1fr;
      gap:18px;
      align-items:stretch;
    }
    .coupon-card{
      position:relative;
      overflow:hidden;
      border-radius:30px;
      padding:24px;
      min-height:236px;
      border:1px solid rgba(232,230,244,.9);
      background:#fff;
      box-shadow:0 14px 34px rgba(37,28,95,.08);
      transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }
    .coupon-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:rgba(115,87,255,.34)}
    .coupon-card.featured{
      grid-row:span 2;
      color:#fff;
      background:
        linear-gradient(145deg,rgba(115,87,255,.97),rgba(255,107,129,.9)),
        radial-gradient(circle at 80% 10%,rgba(255,255,255,.35),transparent 14rem);
    }
    .coupon-card.featured .coupon-meta,.coupon-card.featured p{color:rgba(255,255,255,.84)}
    .coupon-tag{
      display:inline-flex;
      align-items:center;
      gap:7px;
      border-radius:999px;
      padding:7px 11px;
      background:rgba(115,87,255,.1);
      color:var(--brand-dark);
      font-weight:800;
      font-size:13px;
      margin-bottom:18px;
    }
    .featured .coupon-tag{background:rgba(255,255,255,.18);color:#fff}
    .coupon-card h3{margin:0 0 10px;font-size:24px;line-height:1.24;letter-spacing:-.03em;font-weight:950}
    .coupon-card p{margin:0;color:var(--muted);font-size:15px}
    .coupon-meta{
      position:absolute;
      left:24px;
      bottom:20px;
      font-weight:850;
      color:var(--brand-dark);
    }
    .rule-wrap{
      display:grid;
      grid-template-columns:.8fr 1.2fr;
      gap:22px;
      align-items:start;
    }
    .rule-panel,.glass-card{
      border-radius:30px;
      border:1px solid rgba(232,230,244,.88);
      background:rgba(255,255,255,.86);
      box-shadow:var(--shadow);
      padding:26px;
    }
    .rule-list{display:grid;gap:14px}
    .rule-item{
      display:grid;
      grid-template-columns:42px 1fr;
      gap:14px;
      padding:16px;
      border-radius:22px;
      background:linear-gradient(180deg,#fff,rgba(244,241,255,.62));
      border:1px solid rgba(232,230,244,.84);
    }
    .rule-num{
      width:42px;height:42px;border-radius:16px;
      display:grid;place-items:center;
      color:#fff;font-weight:950;
      background:linear-gradient(135deg,var(--brand),var(--coral));
    }
    .rule-item h3{margin:0 0 4px;font-size:18px;font-weight:900}
    .rule-item p{margin:0;color:var(--muted);font-size:15px}
    .mini-stat{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:18px 0;
      border-bottom:1px solid var(--line);
    }
    .mini-stat:last-child{border-bottom:0}
    .mini-stat strong{font-size:28px;color:var(--brand-dark);letter-spacing:-.04em}
    .metrics-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .metric-card{
      padding:24px;
      border-radius:28px;
      background:#fff;
      border:1px solid rgba(232,230,244,.9);
      box-shadow:0 12px 30px rgba(37,28,95,.07);
    }
    .metric-card strong{display:block;font-size:34px;line-height:1.1;color:var(--brand-dark);letter-spacing:-.05em;margin-bottom:10px}
    .metric-card span{color:var(--muted);font-size:15px}
    .compare-box{
      overflow:hidden;
      border-radius:32px;
      border:1px solid rgba(232,230,244,.9);
      box-shadow:var(--shadow);
      background:#fff;
    }
    .compare-row{
      display:grid;
      grid-template-columns:1fr 1fr 1fr;
      border-bottom:1px solid var(--line);
    }
    .compare-row:last-child{border-bottom:0}
    .compare-cell{
      padding:20px;
      border-right:1px solid var(--line);
      color:var(--muted);
    }
    .compare-cell:last-child{border-right:0}
    .compare-head .compare-cell{
      font-weight:950;
      color:var(--ink);
      background:linear-gradient(180deg,#fff,var(--brand-soft));
    }
    .compare-good{color:var(--brand-dark);font-weight:850}
    .live-card{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:0;
      overflow:hidden;
      border-radius:34px;
      background:#10152b;
      color:#fff;
      box-shadow:var(--shadow);
    }
    .live-cover{
      min-height:360px;
      padding:28px;
      background:
        linear-gradient(150deg,rgba(16,21,43,.15),rgba(16,21,43,.86)),
        radial-gradient(circle at 38% 24%,rgba(255,107,129,.72),transparent 13rem),
        radial-gradient(circle at 72% 58%,rgba(115,87,255,.82),transparent 15rem),
        #201257;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .live-dot{display:inline-flex;align-items:center;gap:8px;font-weight:900}
    .live-dot:before{content:"";width:10px;height:10px;border-radius:50%;background:#ff4d65;box-shadow:0 0 0 8px rgba(255,77,101,.16)}
    .countdown{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px}
    .timebox{border-radius:20px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.16);padding:14px;text-align:center}
    .timebox strong{display:block;font-size:28px;line-height:1;font-weight:950}
    .timebox span{font-size:12px;color:rgba(255,255,255,.7)}
    .live-info{padding:30px}
    .check-list{display:grid;gap:13px;margin:20px 0 0;padding:0;list-style:none}
    .check-list li{
      display:flex;
      gap:10px;
      color:rgba(255,255,255,.78);
    }
    .check-list li:before{content:"✓";color:#7af0d4;font-weight:950}
    .recommend-track{
      display:grid;
      grid-template-columns:1.1fr .9fr .9fr;
      gap:18px;
    }
    .recommend-card{
      border-radius:30px;
      padding:24px;
      background:#fff;
      border:1px solid rgba(232,230,244,.9);
      box-shadow:0 12px 30px rgba(37,28,95,.07);
      transition:.22s ease;
    }
    .recommend-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .recommend-card h3{font-weight:950;font-size:22px;margin:12px 0 8px}
    .recommend-card p{color:var(--muted);margin:0;font-size:15px}
    .news-layout{
      display:grid;
      grid-template-columns:1.35fr .65fr;
      gap:22px;
    }
    .news-list,.side-pick{
      border-radius:30px;
      background:#fff;
      border:1px solid rgba(232,230,244,.9);
      box-shadow:var(--shadow);
      padding:22px;
    }
    .news-item{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:16px;
      align-items:center;
      padding:18px 0;
      border-bottom:1px solid var(--line);
    }
    .news-item:last-child{border-bottom:0}
    .news-date{
      width:74px;
      height:58px;
      border-radius:18px;
      background:var(--brand-soft);
      color:var(--brand-dark);
      display:grid;
      place-items:center;
      font-weight:950;
      line-height:1.1;
      text-align:center;
      font-size:13px;
    }
    .news-item h3{margin:0 0 4px;font-size:18px;font-weight:900}
    .news-item p{margin:0;color:var(--muted);font-size:14px}
    .arrow{
      width:38px;height:38px;border-radius:50%;
      display:grid;place-items:center;
      background:rgba(115,87,255,.08);
      color:var(--brand-dark);
      transition:.2s ease;
    }
    .news-item:hover .arrow{background:var(--brand);color:#fff;transform:translateX(3px)}
    .side-pick h3{margin:0 0 14px;font-size:21px;font-weight:950}
    .side-pick ul{margin:0;padding:0;list-style:none;display:grid;gap:12px}
    .side-pick li{
      padding:14px;
      border-radius:20px;
      background:linear-gradient(180deg,#fff,rgba(244,241,255,.66));
      color:var(--muted);
      border:1px solid rgba(232,230,244,.82);
    }
    .faq-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:18px;
    }
    .faq-item{
      border-radius:28px;
      background:#fff;
      border:1px solid rgba(232,230,244,.9);
      padding:22px;
      box-shadow:0 12px 30px rgba(37,28,95,.07);
    }
    .faq-item h3{margin:0 0 10px;font-size:19px;font-weight:950}
    .faq-item p{margin:0;color:var(--muted);font-size:15px}
    .cta-section{padding:24px 0 90px}
    .cta-card{
      overflow:hidden;
      border-radius:38px;
      color:#fff;
      background:
        linear-gradient(135deg,rgba(68,40,200,.96),rgba(115,87,255,.92) 48%,rgba(255,107,129,.88)),
        radial-gradient(circle at 82% 20%,rgba(255,255,255,.26),transparent 18rem);
      box-shadow:var(--shadow-hover);
      padding:34px;
      display:grid;
      grid-template-columns:1fr .85fr;
      gap:28px;
      align-items:center;
    }
    .cta-card h2{font-size:clamp(30px,4vw,48px);line-height:1.15;letter-spacing:-.05em;font-weight:950;margin:0 0 14px}
    .cta-card p{color:rgba(255,255,255,.82);margin:0;font-size:17px}
    .lead-form{
      padding:20px;
      border-radius:28px;
      background:rgba(255,255,255,.16);
      border:1px solid rgba(255,255,255,.22);
      display:grid;
      gap:12px;
    }
    .form-field{
      width:100%;
      border:1px solid rgba(255,255,255,.22);
      background:rgba(255,255,255,.92);
      border-radius:18px;
      padding:14px 15px;
      color:var(--ink);
      outline:none;
      transition:.2s ease;
    }
    .form-field:focus{border-color:#fff;box-shadow:0 0 0 4px rgba(255,255,255,.18)}
    .form-help{font-size:13px;color:rgba(255,255,255,.72);margin:0}
    .footer{
      padding:34px 0;
      border-top:1px solid var(--line);
      background:rgba(255,255,255,.72);
    }
    .footer-inner{
      display:flex;
      justify-content:space-between;
      gap:22px;
      align-items:center;
      color:var(--muted);
      font-size:14px;
    }
    .footer-brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:900}
    .footer-mark{
      width:34px;height:34px;border-radius:13px;display:grid;place-items:center;color:#fff;
      background:linear-gradient(135deg,var(--brand),var(--coral));
    }
    @media (max-width:1024px){
      .hero-body,.rule-wrap,.news-layout,.cta-card,.live-card{grid-template-columns:1fr}
      .badge-row,.metrics-grid{grid-template-columns:repeat(2,1fr)}
      .coupon-grid,.recommend-track{grid-template-columns:1fr 1fr}
      .coupon-card.featured{grid-row:auto;grid-column:span 2}
      .follow-box{align-items:flex-start}
      .cover{align-items:flex-start;flex-direction:column}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 28px,var(--container))}
      .nav{min-height:66px}
      .logo-text{font-size:16px;max-width:58vw;overflow:hidden;text-overflow:ellipsis}
      .nav-cta{min-height:42px;padding:0 14px;font-size:14px}
      .section-pad{padding:58px 0}
      .cover{min-height:320px;padding:20px}
      .profile{align-items:flex-start;flex-direction:column}
      .avatar{width:76px;height:76px;border-radius:24px}
      .hero-body{padding:18px}
      .badge-row,.metrics-grid,.coupon-grid,.recommend-track,.faq-grid{grid-template-columns:1fr}
      .coupon-card.featured{grid-column:auto}
      .compare-row{grid-template-columns:1fr}
      .compare-cell{border-right:0;border-bottom:1px solid var(--line)}
      .compare-cell:last-child{border-bottom:0}
      .news-item{grid-template-columns:1fr}
      .news-date{width:70px}
      .footer-inner{flex-direction:column;align-items:flex-start}
    }
    @media (max-width:520px){
      .hero h1{font-size:34px}
      .section-title{font-size:29px}
      .hero-actions{flex-direction:column}
      .btn{width:100%}
      .cta-card{padding:22px;border-radius:30px}
      .countdown{grid-template-columns:1fr 1fr 1fr}
    }