/* roulang page: index */
:root{
      --primary:#7c3aed;
      --primary-dark:#5b21b6;
      --primary-soft:#ede9fe;
      --accent:#06b6d4;
      --accent-soft:#cffafe;
      --ink:#101828;
      --muted:#667085;
      --subtle:#98a2b3;
      --line:#e5e7eb;
      --card:#ffffff;
      --bg:#f8fafc;
      --bg-deep:#111827;
      --success:#16a34a;
      --warning:#f59e0b;
      --danger:#ef4444;
      --radius-sm:12px;
      --radius:22px;
      --radius-lg:32px;
      --shadow-sm:0 10px 30px rgba(15,23,42,.08);
      --shadow:0 24px 70px rgba(15,23,42,.12);
      --shadow-glow:0 18px 60px rgba(124,58,237,.24);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","微软雅黑",Arial,sans-serif;
      color:var(--ink);
      line-height:1.65;
      background:
        radial-gradient(circle at 12% 8%, rgba(124,58,237,.12), transparent 30%),
        radial-gradient(circle at 90% 12%, rgba(6,182,212,.12), transparent 28%),
        linear-gradient(180deg,#ffffff 0%,#f8fafc 36%,#f4f7fb 100%);
    }
    a{color:inherit;text-decoration:none}
    img,svg{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(124,58,237,.18);color:#3b0764}
    .site-container{width:min(var(--container), calc(100% - 40px));margin-inline:auto}
    .section-pad{padding:78px 0}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:30px}
    .section-kicker{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border-radius:999px;
      background:rgba(124,58,237,.09);color:var(--primary-dark);
      font-weight:700;font-size:13px;letter-spacing:.02em;
    }
    .section-title{font-size:clamp(28px,3vw,42px);line-height:1.16;font-weight:900;letter-spacing:-.04em;margin:12px 0 0}
    .section-desc{max-width:650px;color:var(--muted);font-size:16px;margin-top:12px}
    .glass-card{
      background:rgba(255,255,255,.82);
      border:1px solid rgba(229,231,235,.88);
      box-shadow:var(--shadow-sm);
      backdrop-filter:blur(18px);
      border-radius:var(--radius);
    }
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      border-radius:999px;padding:13px 20px;
      font-weight:800;line-height:1;border:1px solid transparent;
      transition:transform .24s ease, box-shadow .24s ease, background .24s ease, border-color .24s ease, color .24s ease;
      white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),#a855f7);color:#fff;box-shadow:var(--shadow-glow)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 70px rgba(124,58,237,.32)}
    .btn-secondary{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--shadow-sm)}
    .btn-secondary:hover{transform:translateY(-2px);border-color:#c4b5fd;color:var(--primary-dark)}
    .btn-dark{background:#111827;color:#fff;border-color:#1f2937}
    .btn-dark:hover{background:#0b1120;transform:translateY(-2px)}
    .btn:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{
      outline:3px solid rgba(6,182,212,.35);outline-offset:3px;
    }
    .badge{
      display:inline-flex;align-items:center;gap:6px;border-radius:999px;
      padding:6px 10px;font-size:12px;font-weight:800;
      background:#f2f4f7;color:#475467;
    }
    .badge.hot{background:#fff1f2;color:#be123c}
    .badge.ok{background:#ecfdf3;color:#027a48}
    .badge.info{background:#ecfeff;color:#0e7490}
    .topbar{
      position:sticky;top:0;z-index:50;
      background:rgba(255,255,255,.78);
      backdrop-filter:blur(22px);
      border-bottom:1px solid rgba(229,231,235,.78);
    }
    .nav-wrap{height:74px;display:flex;align-items:center;justify-content:space-between;gap:18px}
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand-mark{
      width:42px;height:42px;border-radius:15px;
      display:grid;place-items:center;color:#fff;font-weight:900;
      background:
        radial-gradient(circle at 25% 20%, rgba(255,255,255,.38), transparent 34%),
        linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 16px 38px rgba(124,58,237,.28);
      flex:0 0 auto;
    }
    .brand-name{font-weight:950;letter-spacing:-.04em;font-size:18px;white-space:nowrap}
    .desktop-nav{display:flex;align-items:center;gap:8px}
    .nav-link{
      padding:10px 14px;border-radius:999px;color:#475467;font-weight:800;font-size:14px;
      transition:background .22s ease,color .22s ease;
    }
    .nav-link:hover,.nav-link.active{background:var(--primary-soft);color:var(--primary-dark)}
    .header-action{display:flex;align-items:center;gap:10px}
    .mini-search{
      width:240px;display:flex;align-items:center;gap:8px;
      padding:10px 12px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--subtle);
      box-shadow:0 8px 24px rgba(15,23,42,.04);
    }
    .mini-search input{border:0;outline:0;min-width:0;width:100%;font-size:14px;background:transparent;color:var(--ink)}
    .hero{padding:52px 0 22px}
    .hero-shell{
      position:relative;overflow:hidden;border-radius:38px;
      background:
        linear-gradient(135deg,rgba(17,24,39,.96),rgba(46,16,101,.94) 48%,rgba(8,47,73,.92)),
        radial-gradient(circle at 20% 15%, rgba(168,85,247,.45), transparent 35%);
      color:#fff;
      box-shadow:0 34px 100px rgba(15,23,42,.28);
      border:1px solid rgba(255,255,255,.14);
    }
    .hero-shell:before{
      content:"";position:absolute;inset:-1px;
      background:
        linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px),
        linear-gradient(180deg,rgba(255,255,255,.05) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 88%);
      pointer-events:none;
    }
    .status-strip{
      position:relative;display:flex;align-items:center;justify-content:space-between;gap:14px;
      padding:15px 18px;border-bottom:1px solid rgba(255,255,255,.14);
      background:rgba(255,255,255,.06);
    }
    .status-left,.status-right{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
    .status-dot{width:9px;height:9px;border-radius:999px;background:#22c55e;box-shadow:0 0 0 7px rgba(34,197,94,.12)}
    .status-chip{font-size:13px;font-weight:800;color:rgba(255,255,255,.88);padding:7px 10px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.12)}
    .hero-inner{position:relative;padding:54px clamp(22px,5vw,70px) 46px}
    .hero-copy{max-width:900px}
    .hero h1{
      max-width:900px;margin:14px 0 18px;
      font-size:clamp(34px,5.8vw,74px);line-height:.98;font-weight:950;letter-spacing:-.065em;
    }
    .hero-intro{max-width:820px;color:rgba(255,255,255,.78);font-size:clamp(16px,1.55vw,19px);margin:0}
    .hero-cta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:28px}
    .hero .btn-secondary{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.18);box-shadow:none}
    .hero .btn-secondary:hover{background:rgba(255,255,255,.16);color:#fff}
    .icon-matrix{
      display:grid;grid-template-columns:repeat(6,minmax(0,1fr));
      gap:12px;margin-top:38px;
    }
    .matrix-item{
      min-height:118px;border:1px solid rgba(255,255,255,.14);
      border-radius:24px;padding:16px;
      background:linear-gradient(180deg,rgba(255,255,255,.13),rgba(255,255,255,.06));
      backdrop-filter:blur(12px);
      transition:transform .24s ease,border-color .24s ease,background .24s ease;
    }
    .matrix-item:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.34);background:rgba(255,255,255,.15)}
    .matrix-icon{font-size:26px;line-height:1;margin-bottom:14px}
    .matrix-title{font-weight:900;font-size:15px}
    .matrix-text{font-size:12px;color:rgba(255,255,255,.66);margin-top:5px}
    .metric-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:18px}
    .metric{
      padding:16px;border-radius:22px;background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.13);
    }
    .metric strong{display:block;font-size:24px;font-weight:950;letter-spacing:-.04em}
    .metric span{display:block;color:rgba(255,255,255,.66);font-size:12px;margin-top:3px}
    .pill-row-wrap{padding:18px 0 0}
    .pill-row{
      display:flex;gap:10px;overflow:auto;padding:4px 2px 10px;
      scrollbar-width:thin;scrollbar-color:#c4b5fd transparent;
    }
    .pill-row a{
      flex:0 0 auto;border:1px solid var(--line);
      background:rgba(255,255,255,.86);box-shadow:0 10px 26px rgba(15,23,42,.06);
      padding:10px 15px;border-radius:999px;font-weight:850;color:#475467;
      transition:background .22s ease,color .22s ease,transform .22s ease,border-color .22s ease;
    }
    .pill-row a:hover,.pill-row a.active{background:#111827;color:#fff;border-color:#111827;transform:translateY(-1px)}
    .entry-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:16px}
    .entry-card{
      position:relative;overflow:hidden;padding:24px;border-radius:var(--radius);
      border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-sm);
      min-height:176px;transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
    }
    .entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#ddd6fe}
    .entry-card.featured{
      grid-row:span 2;
      background:linear-gradient(145deg,#ffffff,#f5f3ff);
    }
    .entry-card .num{font-size:13px;font-weight:900;color:var(--primary);letter-spacing:.08em}
    .entry-card h3{font-size:22px;line-height:1.2;font-weight:950;margin:12px 0 8px;letter-spacing:-.03em}
    .entry-card p{color:var(--muted);font-size:14px;margin:0}
    .entry-icon{
      position:absolute;right:18px;bottom:14px;
      width:62px;height:62px;border-radius:22px;
      display:grid;place-items:center;font-size:30px;
      background:var(--primary-soft);
    }
    .selling-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}
    .selling-card{
      padding:26px;border-radius:28px;color:#fff;min-height:238px;position:relative;overflow:hidden;
      box-shadow:0 24px 60px rgba(15,23,42,.16);
    }
    .selling-card:after{
      content:"";position:absolute;right:-34px;bottom:-34px;width:150px;height:150px;border-radius:999px;background:rgba(255,255,255,.13);
    }
    .selling-card.purple{background:linear-gradient(145deg,#6d28d9,#a855f7)}
    .selling-card.cyan{background:linear-gradient(145deg,#0891b2,#22d3ee)}
    .selling-card.dark{background:linear-gradient(145deg,#111827,#374151)}
    .selling-card h3{font-size:24px;font-weight:950;letter-spacing:-.035em;margin:18px 0 10px}
    .selling-card p{color:rgba(255,255,255,.76);margin:0;font-size:15px}
    .selling-symbol{
      width:52px;height:52px;border-radius:18px;
      background:rgba(255,255,255,.16);display:grid;place-items:center;font-size:26px;
      border:1px solid rgba(255,255,255,.18);
    }
    .timeline{
      display:grid;grid-template-columns:.72fr 1.28fr;gap:20px;align-items:start;
    }
    .score-panel{
      padding:24px;border-radius:28px;background:#111827;color:#fff;box-shadow:var(--shadow);
      position:sticky;top:96px;
    }
    .score-ring{
      width:140px;height:140px;border-radius:999px;margin:12px auto 18px;
      display:grid;place-items:center;
      background:conic-gradient(var(--accent) 0 78%, rgba(255,255,255,.12) 78% 100%);
      position:relative;
    }
    .score-ring:after{content:"";position:absolute;inset:13px;border-radius:999px;background:#111827}
    .score-ring strong{position:relative;z-index:2;font-size:35px;font-weight:950;letter-spacing:-.05em}
    .score-panel p{color:rgba(255,255,255,.72);font-size:14px;margin:0}
    .timeline-list{display:flex;flex-direction:column;gap:14px}
    .timeline-item{
      display:grid;grid-template-columns:92px 1fr;gap:16px;
      padding:20px;border-radius:24px;background:#fff;border:1px solid var(--line);
      box-shadow:0 12px 34px rgba(15,23,42,.06);
      transition:transform .22s ease,border-color .22s ease;
    }
    .timeline-item:hover{transform:translateX(4px);border-color:#c4b5fd}
    .phase{font-weight:950;color:var(--primary);font-size:14px}
    .timeline-item h3{font-size:18px;font-weight:950;margin:0 0 5px}
    .timeline-item p{color:var(--muted);margin:0;font-size:14px}
    .news-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:18px}
    .news-list,.recommend-box{padding:22px;border-radius:28px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
    .news-list ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
    .news-list li+li{border-top:1px solid #eef2f7}
    .news-link{
      display:grid;grid-template-columns:1fr auto;gap:18px;padding:17px 0;
      align-items:center;transition:color .22s ease;
    }
    .news-link:hover h3{color:var(--primary-dark)}
    .news-link h3{font-size:17px;font-weight:900;margin:0;transition:color .22s ease}
    .news-link p{margin:6px 0 0;color:var(--muted);font-size:14px}
    .news-date{font-size:12px;color:var(--subtle);font-weight:800;white-space:nowrap}
    .recommend-box{background:linear-gradient(180deg,#ffffff,#f5f3ff)}
    .rank-list{list-style:none;margin:18px 0 0;padding:0;display:flex;flex-direction:column;gap:12px}
    .rank-list li{display:flex;align-items:center;gap:12px;padding:13px;border-radius:18px;background:rgba(255,255,255,.72);border:1px solid rgba(229,231,235,.8)}
    .rank-index{width:28px;height:28px;border-radius:10px;display:grid;place-items:center;background:#111827;color:#fff;font-weight:950;font-size:12px}
    .rank-list strong{font-size:14px}
    .rank-list span{display:block;font-size:12px;color:var(--muted)}
    .assurance{
      background:
        radial-gradient(circle at 15% 10%, rgba(34,211,238,.18), transparent 28%),
        linear-gradient(135deg,#0f172a,#1e1b4b);
      color:#fff;border-radius:36px;padding:34px;
      box-shadow:0 30px 90px rgba(15,23,42,.26);
    }
    .assurance-grid{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:14px;margin-top:24px}
    .assurance-card{
      padding:20px;border-radius:24px;background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.13);
      transition:background .22s ease,transform .22s ease;
    }
    .assurance-card:hover{background:rgba(255,255,255,.12);transform:translateY(-3px)}
    .assurance-card h3{font-weight:950;margin:12px 0 6px;font-size:17px}
    .assurance-card p{color:rgba(255,255,255,.68);font-size:13px;margin:0}
    .bubble-wall{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .bubble{
      padding:22px;border-radius:28px;background:#fff;border:1px solid var(--line);
      box-shadow:var(--shadow-sm);position:relative;
      transition:transform .22s ease, box-shadow .22s ease;
    }
    .bubble:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .bubble:after{
      content:"";position:absolute;left:32px;bottom:-9px;width:18px;height:18px;
      background:#fff;border-right:1px solid var(--line);border-bottom:1px solid var(--line);
      transform:rotate(45deg);
    }
    .avatar-line{display:flex;align-items:center;gap:12px;margin-bottom:14px}
    .avatar{
      width:42px;height:42px;border-radius:15px;display:grid;place-items:center;
      color:#fff;font-weight:950;background:linear-gradient(135deg,var(--primary),var(--accent));
    }
    .avatar-line strong{display:block;font-size:14px}
    .avatar-line span{display:block;color:var(--subtle);font-size:12px}
    .bubble p{margin:0;color:#475467;font-size:14px}
    .faq-wrap{display:grid;grid-template-columns:.78fr 1.22fr;gap:22px}
    .faq-side{padding:26px;border-radius:28px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
    .faq-list{display:flex;flex-direction:column;gap:12px}
    details{
      border:1px solid var(--line);border-radius:22px;background:#fff;padding:18px 20px;
      box-shadow:0 10px 26px rgba(15,23,42,.04);
    }
    details[open]{border-color:#c4b5fd;background:#fbfaff}
    summary{list-style:none;cursor:pointer;font-weight:950;display:flex;align-items:center;justify-content:space-between;gap:16px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";width:28px;height:28px;border-radius:999px;background:var(--primary-soft);color:var(--primary-dark);display:grid;place-items:center;flex:0 0 auto}
    details[open] summary:after{content:"−"}
    details p{color:var(--muted);font-size:14px;margin:12px 0 0}
    .app-section{padding-bottom:90px}
    .app-panel{
      display:grid;grid-template-columns:1fr .92fr;gap:22px;align-items:stretch;
      border-radius:36px;overflow:hidden;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);
    }
    .app-copy{padding:34px}
    .device-card{
      min-height:420px;padding:28px;background:
        radial-gradient(circle at 20% 20%, rgba(124,58,237,.18), transparent 30%),
        linear-gradient(145deg,#111827,#312e81);
      color:#fff;display:flex;align-items:center;justify-content:center;
    }
    .device-inner{
      width:min(100%,360px);border-radius:32px;padding:18px;
      background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
      box-shadow:0 26px 70px rgba(0,0,0,.24);
    }
    .device-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
    .device-screen{display:grid;gap:10px}
    .device-row{display:flex;align-items:center;gap:10px;padding:12px;border-radius:18px;background:rgba(255,255,255,.11)}
    .device-row span:first-child{width:34px;height:34px;border-radius:13px;background:rgba(255,255,255,.16);display:grid;place-items:center}
    .lead-form{margin-top:22px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .lead-form .full{grid-column:1/-1}
    .field{
      width:100%;border:1px solid var(--line);border-radius:16px;padding:13px 14px;background:#fff;color:var(--ink);
      transition:border-color .22s ease,box-shadow .22s ease;
    }
    .field:focus{border-color:#a78bfa;box-shadow:0 0 0 4px rgba(124,58,237,.1);outline:0}
    textarea.field{min-height:94px;resize:vertical}
    .form-note{font-size:13px;color:var(--muted);margin-top:10px}
    .form-result{display:none;margin-top:12px;padding:12px 14px;border-radius:16px;background:#ecfdf3;color:#027a48;font-weight:800}
    .footer{
      background:#0b1120;color:#cbd5e1;padding:44px 0 28px;
      border-top:1px solid rgba(255,255,255,.08);
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:start}
    .footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:950;font-size:18px}
    .footer p{color:#94a3b8;margin:14px 0 0;max-width:620px}
    .footer-links{display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap}
    .footer-links a{padding:9px 12px;border-radius:999px;background:rgba(255,255,255,.06);color:#cbd5e1;font-weight:800;font-size:13px;transition:background .22s ease,color .22s ease}
    .footer-links a:hover{background:rgba(255,255,255,.12);color:#fff}
    .copyright{margin-top:30px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;color:#94a3b8;font-size:13px}
    @media (max-width:1024px){
      .mini-search{display:none}
      .icon-matrix{grid-template-columns:repeat(3,minmax(0,1fr))}
      .entry-grid{grid-template-columns:1fr 1fr}
      .entry-card.featured{grid-row:auto;grid-column:1/-1}
      .selling-grid,.bubble-wall{grid-template-columns:1fr 1fr}
      .timeline,.news-layout,.faq-wrap,.app-panel{grid-template-columns:1fr}
      .score-panel{position:relative;top:auto}
      .assurance-grid{grid-template-columns:1fr 1fr}
      .device-card{min-height:360px}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 28px,var(--container))}
      .section-pad{padding:56px 0}
      .nav-wrap{height:auto;padding:14px 0;align-items:flex-start}
      .desktop-nav{display:none}
      .header-action .btn{padding:10px 13px;font-size:13px}
      .brand-name{font-size:16px}
      .hero{padding-top:26px}
      .hero-shell{border-radius:28px}
      .status-strip{align-items:flex-start;flex-direction:column}
      .hero-inner{padding:36px 18px 28px}
      .hero h1{font-size:clamp(34px,12vw,52px)}
      .icon-matrix{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
      .matrix-item{min-height:104px;border-radius:20px;padding:14px}
      .metric-row{grid-template-columns:1fr}
      .section-head{display:block}
      .entry-grid,.selling-grid,.bubble-wall,.assurance-grid{grid-template-columns:1fr}
      .timeline-item{grid-template-columns:1fr;gap:8px}
      .news-link{grid-template-columns:1fr;gap:6px}
      .lead-form{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
    }
    @media (max-width:520px){
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .header-action{display:none}
      .hero-cta .btn{width:100%}
      .icon-matrix{grid-template-columns:1fr}
      .assurance{padding:22px;border-radius:28px}
      .app-copy{padding:24px}
      .device-card{padding:18px;min-height:300px}
      .section-title{font-size:29px}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }