:root{--bg:#f6f4ef;--panel:#ffffff;--panel2:#fff4ec;--ink:#172033;--muted:#5d6472;--line:#e8e0d7;--brand:#ff4d5a;--brand2:#ff8a00;--brand3:#2f6bff;--shadow:0 18px 50px rgba(31,38,60,.10);--radius:22px;--radius-sm:16px}
    *{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;font-family:Inter,system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:radial-gradient(circle at top left,rgba(255,77,90,.10),transparent 30%),radial-gradient(circle at top right,rgba(47,107,255,.10),transparent 24%),linear-gradient(180deg,#fffaf6 0%,#f6f4ef 38%,#f6f4ef 100%);color:var(--ink)}
    a{color:inherit;text-decoration:none} img{max-width:100%;display:block}
    .container{width:min(1180px,calc(100% - 32px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,250,246,.82);backdrop-filter:blur(14px);border-bottom:1px solid rgba(232,224,215,.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 .logo-wrap{width:44px;height:44px;border-radius:14px;background:#fff;box-shadow:var(--shadow);display:grid;place-items:center;overflow:hidden;border:1px solid var(--line)}
    .brand .brand-text{display:flex;flex-direction:column;line-height:1.15}.brand strong{font-size:18px}.brand span{font-size:12px;color:var(--muted)}
    .nav-links{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:flex-end}.nav-links a{padding:9px 12px;border-radius:999px;color:#2a3140;font-size:14px}.nav-links a:hover,.nav-links a.active{background:#fff;border:1px solid var(--line);box-shadow:0 8px 24px rgba(16,24,40,.06)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .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:.22s ease;white-space:nowrap}
    .btn.primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 14px 30px rgba(255,77,90,.26)}
    .btn.ghost{background:#fff;color:#21304a;border:1px solid var(--line)}
    .btn:hover{transform:translateY(-2px)}
    .menu-btn{display:none}
    .hero{padding:28px 0 12px}
    .hero-shell{background:linear-gradient(135deg,#181f33 0%,#213a78 42%,#ff4d5a 100%);color:#fff;border-radius:28px;padding:28px;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .hero-shell:before,.hero-shell:after{content:"";position:absolute;border-radius:50%;background:rgba(255,255,255,.10);filter:blur(10px)}
    .hero-shell:before{width:240px;height:240px;right:-60px;top:-60px}.hero-shell:after{width:180px;height:180px;left:-40px;bottom:-50px}
    .hero-grid{display:grid;grid-template-columns:1.28fr .72fr;gap:22px;align-items:stretch;position:relative;z-index:1}
    h1{font-size:clamp(34px,5vw,54px);line-height:1.06;margin:12px 0 14px}.lead{font-size:16px;line-height:1.8;color:rgba(255,255,255,.86);max-width:58ch}
    .hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.pill{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.15);padding:8px 12px;border-radius:999px;font-size:13px}
    .hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .hero-card{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.16);border-radius:24px;padding:18px;display:grid;gap:12px;align-content:start}
    .hero-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.metric{background:rgba(255,255,255,.12);border-radius:18px;padding:14px}
    .metric b{display:block;font-size:22px;margin-bottom:4px}.metric span{font-size:12px;color:rgba(255,255,255,.82)}
    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:26px}.section-head p{margin:0;color:var(--muted);max-width:62ch;line-height:1.7}
    .grid-4,.grid-3,.grid-2{display:grid;gap:16px}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
    .card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 28px rgba(22,27,45,.05);padding:20px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
    .card:hover{transform:translateY(-4px);box-shadow:0 18px 38px rgba(22,27,45,.10);border-color:#dfd4c6}
    .kpi{display:flex;flex-direction:column;gap:8px}.kpi .num{font-size:30px;font-weight:800;color:#1c2740}.kpi .desc{color:var(--muted);line-height:1.7}
    .chips{display:flex;flex-wrap:wrap;gap:10px}.chip{padding:8px 12px;border-radius:999px;background:#fff7f2;border:1px solid #ffd7c8;color:#8d3418;font-size:13px}
    .list{display:grid;gap:10px;margin:0;padding:0;list-style:none}.list li{padding-left:18px;position:relative;line-height:1.7;color:#2d3648}.list li:before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2))}
    .media-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.media-row img{border-radius:18px;border:1px solid var(--line);box-shadow:var(--shadow)}
    .table-wrap{overflow:auto;border-radius:22px;border:1px solid var(--line);background:#fff}.compare-table{width:100%;border-collapse:collapse;min-width:860px}.compare-table th,.compare-table td{padding:14px 16px;border-bottom:1px solid #eee;text-align:left;vertical-align:top}.compare-table th{background:#fff7f4;color:#24314b}.compare-table td{color:#2a3140}.rating{font-weight:800;color:#d9433d}
    .timeline{display:grid;gap:12px}.step{display:grid;grid-template-columns:72px 1fr;gap:14px;align-items:start}.step .index{width:72px;height:72px;border-radius:18px;display:grid;place-items:center;background:linear-gradient(135deg,#fff0f0,#fff7e8);color:#cc2d37;font-weight:800;font-size:20px;border:1px solid #ffd6d6}
    .quote{display:grid;gap:10px}.quote p{margin:0;line-height:1.8;color:#2b3140}.quote .who{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:14px}
    .faq details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 18px;box-shadow:0 8px 20px rgba(10,18,35,.04)} .faq details+details{margin-top:12px} .faq summary{cursor:pointer;font-weight:700;color:#1e2636;list-style:none} .faq summary::-webkit-details-marker{display:none} .faq .ans{color:var(--muted);line-height:1.8;padding-top:10px}
    .form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.field{display:grid;gap:8px}label{font-weight:700;color:#223047;font-size:14px} input,select,textarea{width:100%;border:1px solid #d9dfe8;border-radius:14px;padding:13px 14px;font:inherit;background:#fff;color:#152033;outline:none;transition:border-color .2s,box-shadow .2s} input:focus,select:focus,textarea:focus{border-color:#ff8a00;box-shadow:0 0 0 4px rgba(255,138,0,.12)} textarea{min-height:128px;resize:vertical}
    .footer{margin-top:10px;background:#101827;color:#dbe2f2;padding:24px 0 26px}.footer a{color:#fff}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:18px}.footer small,.footer p{color:#b5bfd2;line-height:1.8}.footer .foot-links{display:flex;flex-wrap:wrap;gap:10px}
    .float-box{position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px}.float-btn{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 12px 26px rgba(255,77,90,.28)}
    .top-btn{border:0;cursor:pointer}
    .fade-in{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}.fade-in.show{opacity:1;transform:none}
    .mobile-only{display:none}
    @media (max-width: 980px){
      .hero-grid,.grid-4,.grid-3,.grid-2,.media-row,.footer-grid,.form-grid{grid-template-columns:1fr}
      .section-head{align-items:start;flex-direction:column}
      .nav-links{display:none}.nav-links.open{display:flex;flex-direction:column;align-items:stretch;width:100%;padding:12px 0}
      .nav{flex-wrap:wrap}.menu-btn{display:inline-flex}
      .nav-actions{margin-left:auto}
      .mobile-only{display:inline-flex}
    }