/* roulang page: index */
:root{
      --primary:#2563eb;
      --primary-dark:#1d4ed8;
      --primary-soft:#dbeafe;
      --secondary:#0ea5e9;
      --accent:#f59e0b;
      --success:#16a34a;
      --danger:#ef4444;
      --ink:#0f172a;
      --text:#334155;
      --muted:#64748b;
      --soft:#f8fafc;
      --panel:#ffffff;
      --line:#e2e8f0;
      --line-strong:#cbd5e1;
      --shadow-sm:0 8px 24px rgba(15,23,42,.06);
      --shadow-md:0 18px 50px rgba(37,99,235,.13);
      --shadow-lg:0 28px 80px rgba(15,23,42,.14);
      --radius-sm:14px;
      --radius-md:22px;
      --radius-lg:30px;
      --radius-xl:38px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(37,99,235,.13), transparent 28%),
        radial-gradient(circle at 82% 4%, rgba(14,165,233,.12), transparent 26%),
        linear-gradient(180deg,#f8fbff 0%,#ffffff 44%,#f7faff 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    ::selection{background:var(--primary);color:#fff}
    .container{
      width:min(var(--container), calc(100% - 40px));
      margin:0 auto;
    }
    .skip-link{
      position:absolute;
      left:-999px;
      top:10px;
      z-index:999;
      background:var(--ink);
      color:#fff;
      padding:10px 14px;
      border-radius:12px;
    }
    .skip-link:focus{left:12px}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:saturate(180%) blur(18px);
      background:rgba(255,255,255,.84);
      border-bottom:1px solid rgba(226,232,240,.88);
      box-shadow:0 10px 30px rgba(15,23,42,.04);
    }
    .nav-shell{
      height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
      font-weight:900;
      color:var(--ink);
      letter-spacing:-.03em;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:16px;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:950;
      box-shadow:0 14px 30px rgba(37,99,235,.24);
      flex:0 0 auto;
    }
    .brand-text{
      font-size:17px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      max-width:300px;
    }
    .desktop-nav{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      padding:6px;
      border:1px solid rgba(226,232,240,.9);
      background:rgba(248,250,252,.72);
      border-radius:999px;
    }
    .nav-link{
      padding:9px 16px;
      border-radius:999px;
      font-size:14px;
      color:var(--muted);
      font-weight:700;
      transition:.22s ease;
    }
    .nav-link:hover{
      color:var(--primary);
      background:#fff;
      box-shadow:var(--shadow-sm);
    }
    .nav-link.active{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 10px 20px rgba(37,99,235,.18);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .mini-search{
      width:190px;
      height:42px;
      border:1px solid var(--line);
      border-radius:999px;
      padding:0 14px 0 36px;
      color:var(--ink);
      outline:none;
      background:#fff url("data:image/svg+xml,%3Csvg width='18' height='18' viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M10.8 18.1a7.3 7.3 0 1 1 0-14.6 7.3 7.3 0 0 1 0 14.6Zm8.7 2.4-4.2-4.2' stroke='%2364748b' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat 12px center;
      transition:.22s ease;
    }
    .mini-search:focus{
      border-color:rgba(37,99,235,.65);
      box-shadow:0 0 0 4px rgba(37,99,235,.11);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      border:0;
      border-radius:999px;
      padding:12px 18px;
      font-weight:850;
      line-height:1;
      transition:transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease;
      white-space:nowrap;
      outline:none;
    }
    .btn:focus-visible{
      box-shadow:0 0 0 4px rgba(37,99,235,.18), 0 14px 30px rgba(37,99,235,.18);
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 16px 36px rgba(37,99,235,.22);
    }
    .btn-primary:hover{
      transform:translateY(-2px);
      box-shadow:0 22px 46px rgba(37,99,235,.28);
    }
    .btn-ghost{
      color:var(--primary);
      background:#fff;
      border:1px solid rgba(37,99,235,.22);
      box-shadow:var(--shadow-sm);
    }
    .btn-ghost:hover{
      transform:translateY(-2px);
      border-color:rgba(37,99,235,.42);
      box-shadow:var(--shadow-md);
    }
    .btn-soft{
      color:#1e40af;
      background:var(--primary-soft);
      border:1px solid rgba(37,99,235,.12);
    }
    .btn-soft:hover{background:#bfdbfe}
    .mobile-toggle{
      display:none;
      width:44px;
      height:44px;
      border:1px solid var(--line);
      border-radius:14px;
      background:#fff;
      color:var(--ink);
    }
    .progress-nav{
      border-top:1px solid rgba(226,232,240,.7);
      background:rgba(248,250,252,.75);
    }
    .progress-track{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:12px;
      padding:12px 0;
      overflow-x:auto;
    }
    .step-link{
      position:relative;
      display:flex;
      align-items:center;
      gap:10px;
      min-width:170px;
      color:var(--muted);
      font-weight:800;
      font-size:13px;
      padding:10px 12px;
      border-radius:16px;
      border:1px solid rgba(226,232,240,.85);
      background:#fff;
      transition:.22s ease;
    }
    .step-link:before{
      content:attr(data-step);
      width:28px;
      height:28px;
      border-radius:999px;
      display:grid;
      place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      font-size:12px;
      flex:0 0 auto;
    }
    .step-link:hover,.step-link.active-step{
      color:var(--primary);
      border-color:rgba(37,99,235,.28);
      box-shadow:var(--shadow-sm);
      transform:translateY(-1px);
    }
    .section{
      padding:92px 0;
    }
    .section-tight{padding:72px 0}
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:34px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--primary);
      background:rgba(37,99,235,.08);
      border:1px solid rgba(37,99,235,.13);
      padding:7px 12px;
      border-radius:999px;
      font-size:13px;
      font-weight:900;
      margin-bottom:14px;
    }
    .section-title{
      color:var(--ink);
      font-size:clamp(28px,3.2vw,44px);
      line-height:1.14;
      font-weight:950;
      letter-spacing:-.045em;
      margin:0;
    }
    .section-desc{
      color:var(--muted);
      max-width:680px;
      margin:14px 0 0;
      font-size:16px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 11px;
      border-radius:999px;
      font-size:12px;
      font-weight:850;
      color:#1e40af;
      background:#eff6ff;
      border:1px solid #dbeafe;
    }
    .badge.green{
      color:#166534;
      background:#ecfdf5;
      border-color:#bbf7d0;
    }
    .badge.orange{
      color:#92400e;
      background:#fffbeb;
      border-color:#fde68a;
    }
    .card{
      background:rgba(255,255,255,.92);
      border:1px solid rgba(226,232,240,.92);
      border-radius:var(--radius-md);
      box-shadow:var(--shadow-sm);
      transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }
    .card:hover{
      transform:translateY(-4px);
      border-color:rgba(37,99,235,.22);
      box-shadow:var(--shadow-md);
    }
    .hero{
      padding:58px 0 84px;
    }
    .hero-stage{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-xl);
      background:
        linear-gradient(135deg,rgba(239,246,255,.96),rgba(255,255,255,.96) 48%,rgba(224,242,254,.78)),
        radial-gradient(circle at 75% 25%, rgba(37,99,235,.20), transparent 36%);
      border:1px solid rgba(191,219,254,.95);
      box-shadow:var(--shadow-lg);
      padding:36px;
    }
    .hero-stage:before{
      content:"";
      position:absolute;
      inset:auto -120px -160px auto;
      width:360px;
      height:360px;
      border-radius:999px;
      background:rgba(37,99,235,.10);
      filter:blur(3px);
    }
    .hero-grid{
      position:relative;
      display:grid;
      grid-template-columns:1.02fr .98fr;
      gap:28px;
      align-items:stretch;
    }
    .hero-copy{
      padding:16px 0 10px;
    }
    .brand-chip{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:8px 13px;
      border-radius:999px;
      color:#1e40af;
      background:#fff;
      border:1px solid rgba(37,99,235,.18);
      box-shadow:0 10px 22px rgba(37,99,235,.08);
      font-weight:900;
      font-size:13px;
      margin-bottom:20px;
    }
    .pulse-dot{
      width:9px;
      height:9px;
      border-radius:999px;
      background:var(--success);
      box-shadow:0 0 0 7px rgba(22,163,74,.12);
    }
    h1{
      color:var(--ink);
      font-size:clamp(38px,5.6vw,70px);
      line-height:1.04;
      letter-spacing:-.06em;
      font-weight:980;
      margin:0 0 20px;
    }
    .hero-lead{
      font-size:18px;
      color:#475569;
      max-width:680px;
      margin:0 0 26px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:12px;
      margin:26px 0 24px;
    }
    .hero-points{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:28px;
    }
    .point-card{
      border:1px solid rgba(226,232,240,.95);
      background:rgba(255,255,255,.78);
      border-radius:20px;
      padding:16px;
    }
    .point-card strong{
      display:block;
      color:var(--ink);
      font-size:24px;
      line-height:1.15;
      letter-spacing:-.03em;
    }
    .point-card span{
      color:var(--muted);
      font-size:13px;
      font-weight:700;
    }
    .demo-panel{
      min-height:470px;
      border-radius:30px;
      background:#0f172a;
      padding:18px;
      color:#dbeafe;
      box-shadow:0 30px 70px rgba(15,23,42,.22);
      border:1px solid rgba(255,255,255,.14);
      overflow:hidden;
      position:relative;
    }
    .demo-panel:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 78% 20%, rgba(56,189,248,.30), transparent 28%),
        linear-gradient(180deg,rgba(255,255,255,.05),transparent);
      pointer-events:none;
    }
    .demo-top{
      position:relative;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:18px;
    }
    .window-dots{display:flex;gap:7px}
    .window-dots i{
      width:10px;height:10px;border-radius:999px;display:block;background:#60a5fa;
    }
    .window-dots i:nth-child(2){background:#34d399}
    .window-dots i:nth-child(3){background:#fbbf24}
    .demo-live{
      display:inline-flex;
      align-items:center;
      gap:8px;
      font-size:12px;
      font-weight:900;
      color:#fff;
      background:rgba(239,68,68,.18);
      border:1px solid rgba(248,113,113,.35);
      padding:7px 10px;
      border-radius:999px;
    }
    .demo-cover{
      position:relative;
      z-index:1;
      border-radius:24px;
      min-height:185px;
      background:
        linear-gradient(135deg,rgba(37,99,235,.95),rgba(14,165,233,.75)),
        repeating-linear-gradient(135deg,rgba(255,255,255,.10) 0 1px,transparent 1px 18px);
      padding:22px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      overflow:hidden;
    }
    .demo-cover:after{
      content:"精品筛选";
      position:absolute;
      right:-16px;
      bottom:-18px;
      font-size:54px;
      font-weight:950;
      color:rgba(255,255,255,.13);
      letter-spacing:-.06em;
    }
    .cover-title{
      color:#fff;
      font-size:24px;
      line-height:1.22;
      font-weight:950;
      letter-spacing:-.04em;
      max-width:360px;
      position:relative;
      z-index:1;
    }
    .cover-list{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      position:relative;
      z-index:1;
    }
    .cover-list span{
      color:#e0f2fe;
      background:rgba(255,255,255,.14);
      border:1px solid rgba(255,255,255,.20);
      border-radius:999px;
      padding:6px 9px;
      font-size:12px;
      font-weight:800;
    }
    .countdown{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:10px;
      margin:16px 0;
    }
    .time-box{
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.13);
      border-radius:18px;
      padding:13px 8px;
      text-align:center;
    }
    .time-box b{
      display:block;
      color:#fff;
      font-size:24px;
      line-height:1.1;
      font-weight:950;
      letter-spacing:-.04em;
    }
    .time-box span{
      display:block;
      color:#93c5fd;
      font-size:12px;
      font-weight:800;
      margin-top:4px;
    }
    .demo-note{
      position:relative;
      z-index:1;
      display:grid;
      gap:10px;
    }
    .note-row{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.12);
      border-radius:18px;
      padding:12px 14px;
      color:#e2e8f0;
      font-weight:800;
      font-size:13px;
    }
    .note-row em{
      font-style:normal;
      color:#86efac;
      font-weight:950;
    }
    .seed-layout{
      display:grid;
      grid-template-columns:.78fr 1.22fr;
      gap:24px;
      align-items:stretch;
    }
    .portrait-stack{
      display:grid;
      gap:14px;
    }
    .portrait-card{
      min-height:140px;
      border-radius:28px;
      padding:20px;
      color:#fff;
      background:linear-gradient(145deg,#2563eb,#0ea5e9);
      box-shadow:var(--shadow-md);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      overflow:hidden;
      position:relative;
    }
    .portrait-card:after{
      content:"";
      position:absolute;
      width:160px;height:160px;border-radius:999px;
      right:-52px;top:-48px;
      background:rgba(255,255,255,.15);
    }
    .portrait-card.alt{background:linear-gradient(145deg,#0f172a,#1e3a8a)}
    .portrait-card h3{
      position:relative;
      margin:0;
      font-size:22px;
      font-weight:950;
      letter-spacing:-.03em;
    }
    .portrait-card p{
      position:relative;
      margin:10px 0 0;
      color:#dbeafe;
      font-size:14px;
    }
    .scenario-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:16px;
    }
    .scenario-card{
      padding:22px;
      min-height:170px;
    }
    .scenario-card .num{
      width:40px;height:40px;border-radius:14px;
      display:grid;place-items:center;
      background:#eff6ff;
      color:var(--primary);
      font-weight:950;
      margin-bottom:16px;
    }
    .scenario-card h3{
      margin:0 0 8px;
      color:var(--ink);
      font-size:19px;
      font-weight:950;
      letter-spacing:-.03em;
    }
    .scenario-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .dashboard{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:22px;
      align-items:stretch;
    }
    .metric-main{
      padding:28px;
      background:linear-gradient(135deg,#fff,#eff6ff);
    }
    .metric-row{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:14px;
      margin-top:22px;
    }
    .metric{
      border-radius:22px;
      padding:18px;
      background:#fff;
      border:1px solid var(--line);
    }
    .metric b{
      display:block;
      color:var(--ink);
      font-size:30px;
      line-height:1;
      font-weight:950;
      letter-spacing:-.05em;
    }
    .metric span{
      display:block;
      color:var(--muted);
      font-size:13px;
      font-weight:750;
      margin-top:8px;
    }
    .signal-list{
      padding:28px;
      display:flex;
      flex-direction:column;
      gap:13px;
    }
    .signal-item{
      display:flex;
      align-items:center;
      gap:12px;
      padding:14px;
      border-radius:18px;
      background:#f8fafc;
      border:1px solid var(--line);
    }
    .signal-icon{
      width:38px;height:38px;border-radius:14px;
      display:grid;place-items:center;
      background:#dbeafe;
      color:var(--primary);
      font-weight:950;
      flex:0 0 auto;
    }
    .signal-item strong{
      display:block;
      color:var(--ink);
      font-size:14px;
    }
    .signal-item small{
      display:block;
      color:var(--muted);
      font-weight:700;
      margin-top:2px;
    }
    .hot-layout{
      display:grid;
      grid-template-columns:1fr 1fr 1fr;
      gap:18px;
    }
    .hot-card{
      padding:24px;
      position:relative;
      overflow:hidden;
    }
    .hot-card.recommend{
      border-color:rgba(37,99,235,.32);
      box-shadow:var(--shadow-md);
      transform:translateY(-6px);
    }
    .hot-card.recommend:hover{transform:translateY(-9px)}
    .hot-rank{
      width:44px;height:44px;border-radius:16px;
      display:grid;place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      font-weight:950;
      margin-bottom:18px;
    }
    .hot-card h3{
      margin:0 0 10px;
      color:var(--ink);
      font-size:22px;
      font-weight:950;
      letter-spacing:-.035em;
    }
    .hot-card p{
      color:var(--muted);
      font-size:14px;
      margin:0 0 18px;
    }
    .feature-list{
      display:grid;
      gap:10px;
      margin:18px 0 22px;
      padding:0;
      list-style:none;
    }
    .feature-list li{
      display:flex;
      align-items:flex-start;
      gap:9px;
      color:#475569;
      font-size:14px;
      font-weight:700;
    }
    .feature-list li:before{
      content:"✓";
      color:var(--success);
      font-weight:950;
      margin-top:1px;
    }
    .compare-strip{
      margin-top:22px;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:14px;
    }
    .compare-mini{
      padding:16px;
      border-radius:20px;
      background:#f8fafc;
      border:1px solid var(--line);
    }
    .compare-mini strong{
      display:block;
      color:var(--ink);
      font-weight:950;
      margin-bottom:5px;
    }
    .compare-mini span{
      color:var(--muted);
      font-size:13px;
      font-weight:700;
    }
    .wall{
      display:grid;
      grid-template-columns:1fr 1.15fr;
      gap:22px;
      align-items:stretch;
    }
    .quote-large{
      padding:30px;
      background:linear-gradient(135deg,#1e3a8a,#2563eb);
      color:#fff;
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-md);
    }
    .quote-large .quote-mark{
      font-size:56px;
      line-height:1;
      opacity:.42;
      font-weight:950;
    }
    .quote-large p{
      font-size:20px;
      line-height:1.75;
      margin:12px 0 22px;
      color:#eff6ff;
      font-weight:700;
    }
    .quote-author{
      display:flex;
      align-items:center;
      gap:12px;
    }
    .avatar{
      width:44px;height:44px;border-radius:999px;
      display:grid;place-items:center;
      background:rgba(255,255,255,.16);
      border:1px solid rgba(255,255,255,.22);
      font-weight:950;
    }
    .quote-author strong{display:block;color:#fff}
    .quote-author span{display:block;color:#bfdbfe;font-size:13px}
    .bubble-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
    }
    .bubble{
      padding:20px;
      border-radius:24px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
    }
    .stars{
      color:#f59e0b;
      letter-spacing:2px;
      font-weight:950;
      margin-bottom:10px;
    }
    .bubble p{
      margin:0;
      color:#475569;
      font-size:14px;
    }
    .news-layout{
      display:grid;
      grid-template-columns:1.35fr .65fr;
      gap:22px;
      align-items:start;
    }
    .news-list{
      padding:10px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-sm);
    }
    .news-item{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:16px;
      align-items:center;
      padding:18px;
      border-radius:22px;
      transition:.22s ease;
      border:1px solid transparent;
    }
    .news-item + .news-item{margin-top:4px}
    .news-item:hover{
      background:#f8fafc;
      border-color:var(--line);
      transform:translateX(3px);
    }
    .news-date{
      width:64px;
      height:54px;
      border-radius:18px;
      display:grid;
      place-items:center;
      background:#eff6ff;
      color:var(--primary);
      font-weight:950;
      line-height:1.1;
      text-align:center;
      font-size:13px;
    }
    .news-item h3{
      margin:0 0 4px;
      color:var(--ink);
      font-size:17px;
      font-weight:950;
      letter-spacing:-.02em;
    }
    .news-item p{
      margin:0;
      color:var(--muted);
      font-size:13px;
    }
    .arrow{
      width:34px;height:34px;border-radius:999px;
      display:grid;place-items:center;
      color:var(--primary);
      background:#fff;
      border:1px solid var(--line);
      transition:.22s ease;
    }
    .news-item:hover .arrow{
      color:#fff;
      background:var(--primary);
      border-color:var(--primary);
    }
    .recommend-panel{
      padding:24px;
      position:sticky;
      top:118px;
    }
    .topic-list{
      display:grid;
      gap:10px;
      margin-top:18px;
    }
    .topic-link{
      display:flex;
      justify-content:space-between;
      gap:10px;
      align-items:center;
      padding:13px 14px;
      border-radius:16px;
      background:#f8fafc;
      border:1px solid var(--line);
      color:#475569;
      font-weight:800;
      font-size:14px;
      transition:.22s ease;
    }
    .topic-link:hover{
      color:var(--primary);
      background:#eff6ff;
      border-color:#bfdbfe;
    }
    .faq-wrap{
      display:grid;
      grid-template-columns:.72fr 1.28fr;
      gap:22px;
      align-items:start;
    }
    .faq-side{
      padding:26px;
      background:linear-gradient(135deg,#fff,#eff6ff);
    }
    .faq-list{
      display:grid;
      gap:12px;
    }
    .faq-item{
      background:#fff;
      border:1px solid var(--line);
      border-radius:22px;
      box-shadow:var(--shadow-sm);
      overflow:hidden;
    }
    .faq-question{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:18px 20px;
      border:0;
      background:#fff;
      color:var(--ink);
      font-weight:950;
      text-align:left;
      transition:.22s ease;
    }
    .faq-question:hover{background:#f8fafc;color:var(--primary)}
    .faq-question:focus-visible{
      outline:3px solid rgba(37,99,235,.18);
      outline-offset:-3px;
    }
    .faq-icon{
      width:28px;height:28px;border-radius:999px;
      display:grid;place-items:center;
      background:#eff6ff;
      color:var(--primary);
      flex:0 0 auto;
      transition:.22s ease;
    }
    .faq-answer{
      display:none;
      padding:0 20px 20px;
      color:var(--muted);
      font-size:14px;
    }
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
    .cta-section{
      padding:92px 0 104px;
    }
    .cta-box{
      overflow:hidden;
      border-radius:var(--radius-xl);
      background:
        linear-gradient(135deg,#0f172a 0%,#1e3a8a 52%,#2563eb 100%);
      color:#fff;
      box-shadow:var(--shadow-lg);
      position:relative;
    }
    .cta-box:before{
      content:"";
      position:absolute;
      width:420px;height:420px;border-radius:999px;
      background:rgba(14,165,233,.22);
      right:-150px;top:-150px;
    }
    .cta-inner{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:30px;
      padding:38px;
      align-items:center;
    }
    .pricing-row{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:24px;
    }
    .price-card{
      border:1px solid rgba(255,255,255,.16);
      background:rgba(255,255,255,.08);
      border-radius:22px;
      padding:18px;
    }
    .price-card.reco{
      background:#fff;
      color:var(--ink);
      border-color:#fff;
      box-shadow:0 24px 54px rgba(0,0,0,.18);
    }
    .price-card h3{
      margin:0 0 8px;
      font-size:17px;
      font-weight:950;
    }
    .price-card b{
      display:block;
      font-size:28px;
      line-height:1;
      letter-spacing:-.04em;
      margin-bottom:10px;
    }
    .price-card span{
      color:inherit;
      opacity:.75;
      font-size:13px;
      font-weight:750;
    }
    .lead-form{
      background:#fff;
      border-radius:28px;
      padding:24px;
      color:var(--text);
      box-shadow:0 30px 70px rgba(15,23,42,.24);
    }
    .form-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
    }
    .form-field{
      display:grid;
      gap:7px;
    }
    .form-field.full{grid-column:1/-1}
    .form-field label{
      color:var(--ink);
      font-size:13px;
      font-weight:900;
    }
    .input,.textarea{
      width:100%;
      border:1px solid var(--line);
      border-radius:16px;
      padding:12px 14px;
      outline:none;
      background:#f8fafc;
      color:var(--ink);
      transition:.22s ease;
    }
    .textarea{min-height:96px;resize:vertical}
    .input:focus,.textarea:focus{
      border-color:rgba(37,99,235,.58);
      background:#fff;
      box-shadow:0 0 0 4px rgba(37,99,235,.10);
    }
    .form-tip{
      color:var(--muted);
      font-size:12px;
      margin:12px 0 0;
      line-height:1.6;
    }
    .site-footer{
      background:#0f172a;
      color:#cbd5e1;
      padding:54px 0 30px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr .9fr;
      gap:28px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(148,163,184,.18);
    }
    .footer-logo{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff;
      font-size:18px;
      font-weight:950;
      letter-spacing:-.03em;
      margin-bottom:14px;
    }
    .footer-mark{
      width:40px;height:40px;border-radius:15px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      color:#fff;
      font-weight:950;
    }
    .footer-title{
      color:#fff;
      font-weight:950;
      margin:0 0 14px;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:#cbd5e1;
      transition:.22s ease;
      font-size:14px;
    }
    .footer-links a:hover{color:#93c5fd;transform:translateX(2px)}
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:18px;
      padding-top:24px;
      font-size:13px;
      color:#94a3b8;
    }
    .fixed-cta{
      position:fixed;
      left:50%;
      bottom:18px;
      transform:translateX(-50%);
      z-index:45;
      width:min(680px, calc(100% - 28px));
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:10px 12px 10px 18px;
      background:rgba(255,255,255,.92);
      border:1px solid rgba(226,232,240,.95);
      border-radius:999px;
      box-shadow:0 18px 50px rgba(15,23,42,.14);
      backdrop-filter:blur(14px);
    }
    .fixed-cta span{
      color:var(--ink);
      font-weight:900;
      font-size:14px;
    }
    @media (max-width:1024px){
      .mini-search{display:none}
      .hero-grid,.seed-layout,.dashboard,.wall,.news-layout,.faq-wrap,.cta-inner{
        grid-template-columns:1fr;
      }
      .demo-panel{min-height:auto}
      .recommend-panel{position:relative;top:auto}
      .hot-layout{grid-template-columns:1fr 1fr}
      .hot-card.recommend{transform:none}
      .section{padding:74px 0}
      .section-tight{padding:62px 0}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px, var(--container))}
      .nav-shell{height:68px}
      .brand-text{max-width:210px;font-size:15px}
      .desktop-nav,.nav-actions .btn{display:none}
      .mobile-toggle{display:grid;place-items:center}
      .nav-actions{gap:0}
      .mobile-menu{
        display:none;
        padding:0 0 14px;
      }
      .mobile-menu.open{display:block}
      .mobile-menu a{
        display:block;
        padding:14px 16px;
        margin:8px 0;
        border-radius:16px;
        background:#fff;
        border:1px solid var(--line);
        font-weight:850;
      }
      .progress-track{grid-template-columns:repeat(4, minmax(170px,1fr))}
      .hero{padding:34px 0 68px}
      .hero-stage{padding:22px;border-radius:28px}
      .hero-points,.metric-row,.compare-strip,.pricing-row{
        grid-template-columns:1fr;
      }
      .scenario-grid,.bubble-grid,.hot-layout{
        grid-template-columns:1fr;
      }
      .section-head{
        display:block;
      }
      .countdown{grid-template-columns:repeat(2,1fr)}
      .news-item{grid-template-columns:auto 1fr}
      .news-item .arrow{display:none}
      .form-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:block}
      .fixed-cta{border-radius:24px;align-items:flex-start}
      .fixed-cta span{font-size:13px}
    }
    @media (max-width:520px){
      .brand-mark{width:38px;height:38px;border-radius:14px}
      .brand-text{max-width:176px}
      h1{font-size:36px}
      .hero-lead{font-size:16px}
      .hero-actions{align-items:stretch}
      .hero-actions .btn{width:100%}
      .point-card strong{font-size:22px}
      .section{padding:62px 0}
      .section-title{font-size:28px}
      .demo-cover{min-height:170px}
      .cover-title{font-size:21px}
      .cta-inner{padding:24px}
      .fixed-cta{display:none}
    }