:root{--bg:#f6f9ff;--bg2:#eef5ff;--card:#ffffff;--card2:#f9fbff;--text:#1f2937;--muted:#5b6678;--line:#dbe5f3;--pri:#276ef1;--pri2:#7c5cff;--acc:#17b3a6;--warn:#ff8a3d;--shadow:0 14px 40px rgba(25,55,105,.10);--shadow2:0 10px 24px rgba(39,110,241,.14);--radius:22px;--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",sans-serif;background:radial-gradient(circle at top left,rgba(39,110,241,.10),transparent 28%),radial-gradient(circle at top right,rgba(23,179,166,.10),transparent 24%),linear-gradient(180deg,#fbfdff 0%,#f4f8ff 100%);color:var(--text);line-height:1.7}
    a{color:var(--pri);text-decoration:none} img{display:block;max-width:100%} .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
    .topbar{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.78);backdrop-filter:saturate(180%) blur(16px);border-bottom:1px solid rgba(219,229,243,.8)}
    .nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
    .brand{display:flex;align-items:center;gap:12px;min-width:0}.brand img{width:44px;height:44px;object-fit:contain;border-radius:12px;background:#fff;padding:5px;box-shadow:var(--shadow2)} .brand strong{display:block;font-size:18px;line-height:1.1} .brand span{display:block;color:var(--muted);font-size:12px}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:14px;padding:10px 12px;color:var(--text)}
    .nav-links{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{padding:8px 12px;border-radius:999px;color:var(--text);font-size:14px}.nav-links a:hover,.nav-links a:focus{background:#eef4ff;color:var(--pri)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:999px;padding:12px 18px;font-weight:700;cursor:pointer;transition:.25s ease;box-shadow:none}
    .btn-primary{background:linear-gradient(135deg,var(--pri),var(--pri2));color:#fff;box-shadow:0 12px 24px rgba(39,110,241,.22)} .btn-ghost{background:#fff;border:1px solid var(--line);color:var(--text)} .btn:hover{transform:translateY(-2px)} .btn:active{transform:translateY(0)}
    .hero{padding:34px 0 18px}.hero-card{position:relative;overflow:hidden;background:linear-gradient(135deg,#ffffff 0%,#f4f8ff 52%,#edf7ff 100%);border:1px solid rgba(219,229,243,.9);border-radius:28px;box-shadow:var(--shadow);padding:28px}
    .hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:22px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(39,110,241,.10);color:#245fe0;border:1px solid rgba(39,110,241,.14);padding:7px 12px;border-radius:999px;font-size:13px;font-weight:700}
    h1{font-size:clamp(30px,5vw,52px);line-height:1.08;margin:14px 0 14px;letter-spacing:-.02em}
    .hero p{color:var(--muted);margin:0 0 18px;font-size:16px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:22px 0 18px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}
    .mini{background:rgba(255,255,255,.72);border:1px solid var(--line);border-radius:18px;padding:14px 14px 12px;box-shadow:0 8px 18px rgba(12,34,68,.05)}
    .mini b{display:block;font-size:18px}.mini span{color:var(--muted);font-size:13px}
    .hero-side{display:grid;gap:14px}.stat-panel{background:linear-gradient(180deg,#0f1f46 0%,#17377b 100%);color:#fff;border-radius:24px;padding:22px;box-shadow:0 18px 36px rgba(15,31,70,.25)}
    .stat-panel small{opacity:.82}.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:14px}.stat{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.13);border-radius:18px;padding:14px}
    .stat strong{display:block;font-size:22px}.stat span{font-size:12px;opacity:.85}
    .section{padding:18px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}.section-head h2{margin:0;font-size:clamp(24px,3vw,34px)} .section-head p{margin:0;color:var(--muted)}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:0 10px 22px rgba(30,50,90,.06);transition:.25s ease}
    .card:hover{transform:translateY(-4px);box-shadow:0 18px 36px rgba(30,50,90,.10)} .card h3,.card h4{margin:0 0 8px} .card p{margin:0;color:var(--muted)}
    .icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(39,110,241,.12),rgba(124,92,255,.12));color:var(--pri);font-weight:800;margin-bottom:12px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}.tag{padding:10px 14px;border:1px solid var(--line);border-radius:999px;background:#fff;color:#31415b;font-size:14px}
    .timeline{display:grid;gap:12px}.step{display:grid;grid-template-columns:54px 1fr;gap:14px;align-items:start}.step .num{width:54px;height:54px;border-radius:18px;background:linear-gradient(135deg,var(--pri),var(--pri2));color:#fff;display:grid;place-items:center;font-weight:800;box-shadow:var(--shadow2)}
    .table-wrap{overflow:auto;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:var(--shadow)} table{width:100%;border-collapse:collapse;min-width:860px} th,td{padding:14px 14px;border-bottom:1px solid #edf2fa;text-align:left;font-size:14px;vertical-align:top} th{background:#f7faff;color:#23324b;font-size:14px} tr:hover td{background:#fbfdff}
    .accordion{display:grid;gap:12px}.acc-item{border:1px solid var(--line);border-radius:18px;background:#fff;overflow:hidden}.acc-btn{width:100%;padding:16px 18px;background:transparent;border:0;display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:16px;font-weight:700;color:var(--text);cursor:pointer;text-align:left}.acc-panel{max-height:0;overflow:hidden;transition:max-height .3s ease;background:#fbfcff}.acc-panel p{margin:0;padding:0 18px 16px;color:var(--muted)} .acc-item.active .acc-panel{max-height:180px}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.review{position:relative}.quote{font-size:42px;line-height:1;color:rgba(39,110,241,.18);position:absolute;top:12px;right:16px}
    .article-list{display:grid;gap:12px}.article{display:flex;justify-content:space-between;gap:14px;align-items:center;padding:16px 18px;border:1px solid var(--line);border-radius:18px;background:#fff}.article span{color:var(--muted);font-size:13px}
    .form{display:grid;gap:12px}.field{display:grid;gap:8px}.field label{font-weight:700;font-size:14px}.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:14px;padding:13px 14px;font:inherit;background:#fff;color:var(--text);outline:none}.field input:focus,.field select:focus,.field textarea:focus{border-color:rgba(39,110,241,.55);box-shadow:0 0 0 4px rgba(39,110,241,.08)}
    .split{display:grid;grid-template-columns:1.05fr .95fr;gap:14px}
    footer{margin-top:18px;background:#0f172a;color:#dbe7ff;padding:28px 0 20px}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px}.footer-grid a{color:#cfe0ff}.footer-grid h3{color:#fff;margin-top:0}.footer-grid p,.footer-grid li{color:#c8d6ef}.copyright{margin-top:18px;padding-top:14px;border-top:1px solid rgba(255,255,255,.12);color:#a9b9d7;font-size:13px}
    .float-tools{position:fixed;right:16px;bottom:16px;display:grid;gap:10px;z-index:70}.float-tools a,.float-tools button{width:48px;height:48px;border-radius:16px;border:0;display:grid;place-items:center;background:#fff;box-shadow:var(--shadow);color:var(--pri);cursor:pointer}
    .fade{opacity:0;transform:translateY(18px);transition:.55s ease}.fade.in{opacity:1;transform:none}
    .mobile-only{display:none}
    @media (max-width: 980px){.hero-grid,.split,.grid-4,.grid-3,.reviews,.footer-grid,.grid-2{grid-template-columns:1fr}.hero-points{grid-template-columns:1fr}.nav-links{display:none;position:absolute;left:16px;right:16px;top:68px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px 14px;background:#f8fbff;border-radius:14px}.menu-toggle{display:inline-flex}.mobile-only{display:inline-flex}.hero-card{padding:20px}.section-head{align-items:start;flex-direction:column}}