/* roulang page: index */
:root{
      --color-primary:#7c3aed;
      --color-primary-dark:#5b21b6;
      --color-secondary:#06b6d4;
      --color-accent:#f59e0b;
      --color-danger:#ef4444;
      --color-success:#10b981;
      --color-ink:#121826;
      --color-muted:#5d667a;
      --color-soft:#8791a5;
      --color-line:#e7eaf1;
      --color-bg:#f7f8fc;
      --color-panel:#ffffff;
      --color-panel-2:#fbfcff;
      --color-dark:#111827;
      --radius-sm:12px;
      --radius-md:18px;
      --radius-lg:28px;
      --radius-xl:36px;
      --shadow-sm:0 10px 24px rgba(17,24,39,.08);
      --shadow-md:0 20px 48px rgba(31,41,55,.12);
      --shadow-lg:0 30px 80px rgba(91,33,182,.18);
      --space-section:92px;
      --font-main:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font-main);
      color:var(--color-ink);
      background:
        radial-gradient(circle at 15% 10%, rgba(124,58,237,.12), transparent 28%),
        radial-gradient(circle at 90% 20%, rgba(6,182,212,.12), transparent 25%),
        linear-gradient(180deg,#ffffff 0%,var(--color-bg) 42%,#ffffff 100%);
      line-height:1.75;
      letter-spacing:.01em;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,transform .2s ease,box-shadow .2s ease}
    a:hover,a:focus{color:var(--color-primary)}
    img{max-width:100%;display:block}
    button,input,textarea{font-family:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(124,58,237,.18);color:var(--color-primary-dark)}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .section{padding:var(--space-section) 0;position:relative}
    .section-tight{padding:68px 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border-radius:999px;
      background:rgba(124,58,237,.1);
      color:var(--color-primary-dark);
      font-size:13px;font-weight:800;
      border:1px solid rgba(124,58,237,.15);
    }
    .eyebrow::before{
      content:"";width:8px;height:8px;border-radius:50%;
      background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));
      box-shadow:0 0 0 5px rgba(124,58,237,.12);
    }
    .section-head{
      display:flex;align-items:flex-end;justify-content:space-between;
      gap:28px;margin-bottom:30px;
    }
    .section-title{margin:12px 0 0;font-size:clamp(28px,3.2vw,46px);line-height:1.18;letter-spacing:-.04em;font-weight:900;color:var(--color-ink)}
    .section-desc{max-width:680px;margin:12px 0 0;color:var(--color-muted);font-size:16px}
    .section-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}
    .btn{
      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;font-size:15px;
      line-height:1;color:var(--color-ink);background:#fff;
      box-shadow:0 8px 20px rgba(17,24,39,.06);
      transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
    }
    .btn:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(17,24,39,.12)}
    .btn:focus-visible,.nav-toggle:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(6,182,212,.35);outline-offset:3px}
    .btn-primary{background:linear-gradient(135deg,var(--color-primary),#9f67ff);color:#fff;box-shadow:0 16px 32px rgba(124,58,237,.28)}
    .btn-primary:hover,.btn-primary:focus{color:#fff;background:linear-gradient(135deg,var(--color-primary-dark),var(--color-primary))}
    .btn-secondary{background:#101827;color:#fff;border-color:rgba(255,255,255,.1)}
    .btn-secondary:hover,.btn-secondary:focus{color:#fff;background:#222b3e}
    .btn-ghost{border-color:var(--color-line);background:rgba(255,255,255,.74);backdrop-filter:blur(12px)}
    .btn-warning{background:linear-gradient(135deg,#f97316,var(--color-accent));color:#fff;box-shadow:0 16px 30px rgba(245,158,11,.26)}
    .badge{
      display:inline-flex;align-items:center;gap:6px;
      padding:6px 10px;border-radius:999px;
      background:#eef2ff;color:#4f46e5;font-size:12px;font-weight:850;
      border:1px solid rgba(79,70,229,.12);
    }
    .badge.hot{background:#fff7ed;color:#ea580c;border-color:#fed7aa}
    .badge.safe{background:#ecfdf5;color:#059669;border-color:#bbf7d0}
    .card{
      background:rgba(255,255,255,.88);
      border:1px solid rgba(231,234,241,.9);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-sm);
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
      overflow:hidden;
    }
    .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(124,58,237,.24)}
    .site-header{
      position:sticky;top:0;z-index:1000;
      background:rgba(255,255,255,.84);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(231,234,241,.82);
    }
    .nav-shell{
      min-height:72px;
      display:grid;
      grid-template-columns:minmax(250px,1fr) auto minmax(280px,1fr);
      align-items:center;gap:22px;
    }
    .brand{
      display:flex;align-items:center;gap:12px;font-weight:950;
      letter-spacing:-.03em;color:var(--color-ink);min-width:0;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:15px;
      display:grid;place-items:center;
      background:conic-gradient(from 180deg,var(--color-primary),var(--color-secondary),var(--color-accent),var(--color-primary));
      color:#fff;font-size:18px;box-shadow:0 12px 28px rgba(124,58,237,.22);
      flex:0 0 auto;
    }
    .brand-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .nav-menu{
      display:flex;align-items:center;justify-content:center;gap:8px;
      margin:0;padding:0;list-style:none;
    }
    .nav-menu a{
      display:inline-flex;align-items:center;height:40px;padding:0 16px;
      border-radius:999px;color:var(--color-muted);font-weight:850;font-size:14px;
    }
    .nav-menu a:hover{background:#f0f3ff;color:var(--color-primary-dark)}
    .nav-menu a.active{background:var(--color-ink);color:#fff}
    .nav-tools{display:flex;align-items:center;justify-content:flex-end;gap:12px}
    .quick-search{
      height:42px;display:flex;align-items:center;gap:8px;
      padding:0 12px;border-radius:999px;background:#f6f7fb;
      border:1px solid var(--color-line);min-width:210px;
    }
    .quick-search span{color:var(--color-soft);font-size:16px}
    .quick-search input{
      border:0;background:transparent;box-shadow:none;margin:0;padding:0;
      height:36px;font-size:14px;color:var(--color-ink);
    }
    .quick-search input:focus{border:0;background:transparent;box-shadow:none}
    .nav-toggle{
      display:none;width:42px;height:42px;border-radius:14px;border:1px solid var(--color-line);
      background:#fff;color:var(--color-ink);font-size:20px;align-items:center;justify-content:center;
    }

    .hero{
      padding:64px 0 56px;
      position:relative;
      overflow:hidden;
    }
    .hero::before{
      content:"";
      position:absolute;inset:18px 20px auto;
      height:520px;border-radius:48px;
      background:linear-gradient(135deg,rgba(124,58,237,.09),rgba(6,182,212,.08) 55%,rgba(245,158,11,.08));
      z-index:-1;
    }
    .hero-stage{
      display:grid;grid-template-columns:1.03fr .97fr;gap:28px;align-items:stretch;
    }
    .hero-copy{
      padding:46px;border-radius:var(--radius-xl);
      background:rgba(255,255,255,.72);
      border:1px solid rgba(255,255,255,.78);
      box-shadow:var(--shadow-lg);
      backdrop-filter:blur(14px);
    }
    h1{
      margin:16px 0 18px;
      font-size:clamp(38px,5.2vw,70px);
      line-height:1.04;
      letter-spacing:-.06em;
      font-weight:950;
      color:var(--color-ink);
    }
    .hero-intro{
      margin:0;color:#3f4758;font-size:18px;max-width:720px;
    }
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
    .hero-points{
      margin-top:28px;display:grid;grid-template-columns:repeat(3,1fr);gap:12px;
    }
    .point{
      padding:14px;border-radius:18px;background:#fff;border:1px solid var(--color-line);
    }
    .point strong{display:block;font-size:22px;line-height:1;color:var(--color-primary-dark);font-weight:950}
    .point span{display:block;margin-top:6px;color:var(--color-muted);font-size:13px;font-weight:700}
    .demo-board{
      border-radius:var(--radius-xl);
      background:#111827;
      color:#fff;
      padding:22px;
      box-shadow:0 28px 60px rgba(17,24,39,.26);
      display:grid;
      grid-template-rows:auto 1fr auto;
      min-height:560px;
      position:relative;
      overflow:hidden;
    }
    .demo-board::after{
      content:"";position:absolute;width:300px;height:300px;border-radius:50%;
      right:-100px;top:-90px;background:rgba(6,182,212,.22);filter:blur(12px);
    }
    .demo-top,.demo-bottom{position:relative;z-index:1;display:flex;justify-content:space-between;align-items:center;gap:12px}
    .demo-tabs{display:flex;gap:8px;flex-wrap:wrap}
    .demo-tab{padding:7px 10px;border-radius:999px;background:rgba(255,255,255,.1);color:#cbd5e1;font-size:12px;font-weight:800}
    .demo-tab.active{background:#fff;color:#111827}
    .demo-grid{
      position:relative;z-index:1;margin:22px 0;
      display:grid;grid-template-columns:1.15fr .85fr;gap:14px;
    }
    .demo-panel{
      border-radius:24px;background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);padding:18px;
    }
    .demo-panel.large{
      min-height:318px;
      background:
        linear-gradient(180deg,rgba(255,255,255,.12),rgba(255,255,255,.05)),
        radial-gradient(circle at 25% 20%,rgba(124,58,237,.5),transparent 36%),
        radial-gradient(circle at 80% 65%,rgba(6,182,212,.28),transparent 30%);
      display:flex;flex-direction:column;justify-content:space-between;
    }
    .demo-title{font-size:20px;font-weight:950;margin:0}
    .demo-note{color:#cbd5e1;font-size:13px;margin:8px 0 0}
    .play-row{display:flex;gap:8px;align-items:center;margin-top:22px}
    .play-pill{height:8px;border-radius:99px;background:rgba(255,255,255,.2);flex:1;overflow:hidden}
    .play-pill i{display:block;width:64%;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--color-secondary),#fff)}
    .mini-list{display:grid;gap:12px}
    .mini-item{
      display:flex;align-items:center;gap:10px;padding:11px;border-radius:18px;
      background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1);
    }
    .mini-icon{width:38px;height:38px;border-radius:14px;display:grid;place-items:center;background:rgba(255,255,255,.12);font-weight:950}
    .mini-item b{display:block;font-size:13px}
    .mini-item span{display:block;color:#cbd5e1;font-size:12px;margin-top:2px}
    .demo-bottom{padding-top:14px;border-top:1px solid rgba(255,255,255,.12);color:#cbd5e1;font-size:13px}
    .signal{display:inline-flex;align-items:center;gap:8px;color:#a7f3d0;font-weight:850}
    .signal::before{content:"";width:9px;height:9px;border-radius:50%;background:#34d399;box-shadow:0 0 0 6px rgba(52,211,153,.14)}

    .matrix-layout{
      display:grid;grid-template-columns:.75fr 1.25fr;gap:22px;align-items:stretch;
    }
    .matrix-aside{
      padding:28px;border-radius:var(--radius-lg);
      background:linear-gradient(160deg,#171b2e,#37246b 68%,#0e7490);
      color:#fff;box-shadow:var(--shadow-md);
    }
    .matrix-aside h3{margin:16px 0 10px;font-size:28px;line-height:1.2;font-weight:950}
    .matrix-aside p{color:#dbe4ff;margin:0}
    .matrix-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .feature-card{padding:22px}
    .feature-card .icon{
      width:46px;height:46px;border-radius:16px;display:grid;place-items:center;
      background:#f1edff;color:var(--color-primary);font-size:22px;margin-bottom:14px;
    }
    .feature-card h3{margin:0 0 8px;font-size:20px;font-weight:950}
    .feature-card p{margin:0;color:var(--color-muted);font-size:14px}

    .preview-strip{
      display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px;
    }
    .preview-card{
      min-height:220px;padding:22px;position:relative;
      background:linear-gradient(180deg,#fff,#fbfcff);
    }
    .preview-card::before{
      content:"";position:absolute;inset:0 0 auto;height:6px;
      background:linear-gradient(90deg,var(--color-primary),var(--color-secondary));
    }
    .preview-card h3{margin:14px 0 8px;font-size:22px;font-weight:950}
    .preview-card p{margin:0;color:var(--color-muted);font-size:14px}
    .preview-meta{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-top:20px}
    .progress{
      height:10px;background:#eef1f7;border-radius:999px;overflow:hidden;margin:18px 0 0;
    }
    .progress i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--color-primary),var(--color-secondary))}
    .quote-wall{
      display:grid;grid-template-columns:1.08fr .92fr;gap:22px;
    }
    .quote-main{
      padding:34px;border-radius:var(--radius-lg);
      background:#fff;border:1px solid var(--color-line);box-shadow:var(--shadow-sm);
    }
    .quote-main blockquote{margin:0;font-size:25px;line-height:1.55;font-weight:850;color:#20283a}
    .quote-author{margin-top:18px;color:var(--color-muted);font-weight:800}
    .result-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .result-card{padding:20px;border-radius:22px;background:#fff;border:1px solid var(--color-line)}
    .result-card strong{display:block;font-size:30px;line-height:1;color:var(--color-primary-dark);font-weight:950}
    .result-card span{display:block;margin-top:8px;color:var(--color-muted);font-size:13px;font-weight:750}

    .flash-section{
      background:#111827;color:#fff;overflow:hidden;
    }
    .flash-section::before{
      content:"";position:absolute;inset:0;
      background:
        radial-gradient(circle at 12% 20%,rgba(245,158,11,.2),transparent 30%),
        radial-gradient(circle at 86% 12%,rgba(124,58,237,.22),transparent 26%);
      pointer-events:none;
    }
    .flash-section .section-title,.flash-section .section-desc{color:#fff}
    .flash-section .section-desc{color:#cbd5e1}
    .countdown-bar{
      position:relative;z-index:1;
      display:flex;justify-content:space-between;align-items:center;gap:18px;
      padding:18px 20px;border-radius:24px;
      background:rgba(255,255,255,.09);
      border:1px solid rgba(255,255,255,.14);
      margin-bottom:20px;
    }
    .countdown-label{font-weight:950;color:#fde68a}
    .countdown{display:flex;gap:8px;align-items:center}
    .time-box{
      min-width:54px;padding:8px 9px;border-radius:14px;background:#fff;color:#111827;
      text-align:center;font-weight:950;line-height:1;
    }
    .time-box small{display:block;margin-top:5px;font-size:10px;color:#64748b;font-weight:800}
    .deal-track{
      position:relative;z-index:1;
      display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
    }
    .deal-card{
      padding:18px;border-radius:26px;background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.14);
      transition:transform .2s ease,background .2s ease;
    }
    .deal-card:hover{transform:translateY(-4px);background:rgba(255,255,255,.14)}
    .deal-card h3{margin:14px 0 8px;font-size:19px;font-weight:950;color:#fff}
    .deal-card p{margin:0;color:#cbd5e1;font-size:14px}
    .stock{
      margin:14px 0 16px;font-size:13px;color:#fecaca;font-weight:850;
    }
    .stock-line{height:8px;border-radius:999px;background:rgba(255,255,255,.14);overflow:hidden;margin-top:8px}
    .stock-line i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#ef4444,#f59e0b)}
    .deal-actions{display:flex;gap:8px;flex-wrap:wrap}
    .deal-actions .btn{min-height:38px;padding:9px 12px;font-size:13px}

    .trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .trust-card{padding:22px;text-align:left}
    .trust-card strong{display:block;font-size:24px;color:var(--color-primary-dark);font-weight:950}
    .trust-card span{display:block;margin-top:8px;color:var(--color-muted);font-size:14px}

    .status-board{
      display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start;
    }
    .status-table{
      background:#fff;border:1px solid var(--color-line);border-radius:var(--radius-lg);
      box-shadow:var(--shadow-sm);overflow:hidden;
    }
    .status-row{
      display:grid;grid-template-columns:1.1fr .8fr .7fr;gap:12px;
      padding:16px 18px;border-bottom:1px solid var(--color-line);align-items:center;
    }
    .status-row:last-child{border-bottom:0}
    .status-row.header{background:#f8f9fe;color:#667085;font-size:13px;font-weight:950}
    .status-name{font-weight:900;color:var(--color-ink)}
    .status-time,.status-state{color:var(--color-muted);font-size:14px}
    .kpi-panel{
      padding:26px;border-radius:var(--radius-lg);
      background:linear-gradient(180deg,#fff,#f8fbff);
      border:1px solid var(--color-line);box-shadow:var(--shadow-sm);
    }
    .kpi-list{display:grid;gap:14px;margin-top:18px}
    .kpi-item{display:flex;justify-content:space-between;align-items:center;padding:14px;border-radius:18px;background:#fff;border:1px solid var(--color-line)}
    .kpi-item b{font-size:15px}
    .kpi-item span{font-weight:950;color:var(--color-primary-dark)}

    .changelog{
      display:grid;gap:16px;
      border-left:2px solid #dfe5f4;margin-left:12px;
    }
    .change-item{
      position:relative;margin-left:22px;padding:20px 22px;border-radius:24px;
      background:#fff;border:1px solid var(--color-line);box-shadow:var(--shadow-sm);
    }
    .change-item::before{
      content:"";position:absolute;left:-32px;top:24px;width:16px;height:16px;border-radius:50%;
      background:var(--color-primary);box-shadow:0 0 0 7px rgba(124,58,237,.12);
    }
    .change-item h3{margin:0 0 8px;font-size:20px;font-weight:950}
    .change-item p{margin:0;color:var(--color-muted);font-size:14px}

    .news-layout{
      display:grid;grid-template-columns:1.35fr .65fr;gap:22px;align-items:start;
    }
    .news-list{
      background:#fff;border:1px solid var(--color-line);border-radius:var(--radius-lg);
      overflow:hidden;box-shadow:var(--shadow-sm);
    }
    .news-item{
      display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;
      padding:18px 20px;border-bottom:1px solid var(--color-line);
    }
    .news-item:last-child{border-bottom:0}
    .news-date{
      min-width:70px;color:var(--color-soft);font-size:13px;font-weight:850;
    }
    .news-item a{
      font-weight:900;color:#1f2937;line-height:1.45;
    }
    .news-item a:hover{color:var(--color-primary-dark)}
    .news-tag{font-size:12px;font-weight:850;color:#0e7490;background:#ecfeff;border:1px solid #cffafe;border-radius:999px;padding:5px 9px}
    .recommend{
      padding:24px;border-radius:var(--radius-lg);
      background:#fff;border:1px solid var(--color-line);box-shadow:var(--shadow-sm);
    }
    .recommend h3{margin:0 0 14px;font-size:22px;font-weight:950}
    .recommend ol{margin:0;padding-left:20px;color:var(--color-muted)}
    .recommend li{margin:10px 0;padding-left:4px}
    .recommend a{font-weight:850;color:var(--color-ink)}
    .recommend a:hover{color:var(--color-primary)}

    .faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:24px;align-items:start}
    .faq-help{
      padding:28px;border-radius:var(--radius-lg);
      background:linear-gradient(180deg,#fff,#f7f8ff);
      border:1px solid var(--color-line);box-shadow:var(--shadow-sm);
      position:sticky;top:96px;
    }
    .faq-list{display:grid;gap:14px}
    .faq-item{
      background:#fff;border:1px solid var(--color-line);border-radius:22px;
      padding:20px 22px;box-shadow:0 8px 20px rgba(17,24,39,.05);
    }
    .faq-item summary{
      cursor:pointer;font-weight:950;color:var(--color-ink);
      list-style:none;display:flex;justify-content:space-between;gap:12px;align-items:center;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::after{content:"＋";color:var(--color-primary);font-weight:950}
    .faq-item[open] summary::after{content:"－"}
    .faq-item p{margin:12px 0 0;color:var(--color-muted);font-size:15px}

    .cta-panel{
      display:grid;grid-template-columns:1fr .9fr;gap:28px;
      padding:36px;border-radius:var(--radius-xl);
      background:
        linear-gradient(135deg,rgba(124,58,237,.94),rgba(6,182,212,.82)),
        radial-gradient(circle at 80% 20%,rgba(255,255,255,.18),transparent 28%);
      color:#fff;box-shadow:var(--shadow-lg);
      overflow:hidden;
    }
    .cta-panel h2{margin:10px 0 12px;font-size:clamp(30px,3.4vw,48px);line-height:1.15;font-weight:950;letter-spacing:-.04em;color:#fff}
    .cta-panel p{margin:0;color:#eef2ff;max-width:680px}
    .contact-box{
      background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
      border-radius:28px;padding:22px;backdrop-filter:blur(10px);
    }
    .contact-box label{display:block;color:#fff;font-weight:850;font-size:13px;margin-bottom:7px}
    .contact-box input,.contact-box textarea{
      width:100%;border:1px solid rgba(255,255,255,.28);
      border-radius:16px;background:rgba(255,255,255,.92);
      padding:12px 14px;box-shadow:none;margin-bottom:12px;color:#111827;
    }
    .contact-box textarea{min-height:96px;resize:vertical}
    .contact-box .btn{width:100%;border:0}

    .site-footer{
      background:#0c1220;color:#cbd5e1;padding:54px 0 96px;
    }
    .footer-grid{
      display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:28px;align-items:start;
    }
    .footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:950;font-size:18px}
    .footer-brand .brand-mark{width:40px;height:40px}
    .footer-desc{margin:16px 0 0;color:#9aa6bb;max-width:520px}
    .footer-title{color:#fff;font-weight:950;margin:0 0 12px}
    .footer-links{list-style:none;margin:0;padding:0;display:grid;gap:8px}
    .footer-links a{color:#cbd5e1;font-weight:700}
    .footer-links a:hover{color:#fff}
    .copyright{
      margin-top:30px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
      color:#8791a5;font-size:13px;
    }
    .floating-cta{
      position:fixed;left:50%;bottom:18px;transform:translateX(-50%);
      width:min(960px,calc(100% - 32px));
      z-index:999;
      display:flex;justify-content:space-between;align-items:center;gap:14px;
      padding:12px 14px 12px 18px;border-radius:999px;
      background:rgba(17,24,39,.92);color:#fff;
      border:1px solid rgba(255,255,255,.13);
      box-shadow:0 22px 50px rgba(17,24,39,.25);
      backdrop-filter:blur(16px);
    }
    .floating-cta strong{font-weight:950}
    .floating-cta span{color:#cbd5e1;font-size:13px;margin-left:8px}
    .floating-cta .btn{min-height:38px;padding:9px 14px;font-size:13px;box-shadow:none}
    .toast{
      position:fixed;right:20px;bottom:92px;z-index:1100;
      background:#111827;color:#fff;padding:12px 16px;border-radius:16px;
      box-shadow:var(--shadow-md);opacity:0;transform:translateY(12px);
      pointer-events:none;transition:opacity .2s ease,transform .2s ease;
      font-size:14px;font-weight:800;
    }
    .toast.is-show{opacity:1;transform:translateY(0)}

    @media (max-width:1024px){
      :root{--space-section:76px}
      .nav-shell{grid-template-columns:1fr auto;gap:14px}
      .nav-menu{grid-column:1/3;justify-content:flex-start;order:3}
      .nav-tools{justify-content:flex-end}
      .quick-search{min-width:180px}
      .hero-stage,.matrix-layout,.quote-wall,.status-board,.news-layout,.faq-grid,.cta-panel{grid-template-columns:1fr}
      .demo-board{min-height:auto}
      .trust-grid,.deal-track{grid-template-columns:repeat(2,1fr)}
      .faq-help{position:static}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,1180px)}
      .site-header{position:sticky}
      .nav-shell{min-height:64px;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}
      .brand{max-width:calc(100% - 56px)}
      .nav-toggle{display:inline-flex}
      .nav-menu{
        display:none;width:100%;order:5;flex-direction:column;align-items:stretch;
        padding:10px;background:#fff;border:1px solid var(--color-line);border-radius:20px;
        box-shadow:var(--shadow-sm);
      }
      .nav-menu.is-open{display:flex}
      .nav-menu a{justify-content:center;width:100%}
      .nav-tools{width:100%;order:4;display:none}
      .nav-tools.is-open{display:flex;flex-direction:column;align-items:stretch}
      .quick-search{width:100%}
      .hero{padding:36px 0 42px}
      .hero::before{inset:8px;height:580px;border-radius:30px}
      .hero-copy{padding:28px;border-radius:28px}
      .hero-points{grid-template-columns:1fr}
      .demo-grid{grid-template-columns:1fr}
      .section-head{display:block}
      .section-actions{justify-content:flex-start;margin-top:16px}
      .matrix-cards,.preview-strip,.result-grid,.trust-grid,.deal-track{grid-template-columns:1fr}
      .status-row{grid-template-columns:1fr;gap:4px}
      .footer-grid{grid-template-columns:1fr}
      .floating-cta{
        border-radius:24px;align-items:flex-start;flex-direction:column;
      }
      .floating-cta span{display:block;margin:4px 0 0}
    }
    @media (max-width:520px){
      :root{--space-section:62px}
      body{line-height:1.7}
      .brand-text{font-size:15px}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      h1{font-size:38px}
      .hero-copy{padding:22px}
      .hero-intro{font-size:16px}
      .btn{width:100%;min-height:44px}
      .hero-actions,.section-actions,.deal-actions{width:100%}
      .countdown-bar{align-items:flex-start;flex-direction:column;border-radius:22px}
      .countdown{width:100%;justify-content:space-between}
      .time-box{min-width:0;flex:1}
      .news-item{grid-template-columns:1fr;gap:7px}
      .cta-panel{padding:24px;border-radius:28px}
      .site-footer{padding-bottom:130px}
    }