:root{--bg:#f6f8fc;--panel:#ffffff;--text:#172033;--muted:#5f6b84;--line:#dbe3f1;--brand:#215cff;--brand2:#7a5cff;--accent:#11b8a5;--warm:#ffb24a;--shadow:0 16px 40px rgba(24,40,82,.08);--radius:22px}
    *{box-sizing:border-box} html{scroll-behavior:smooth}
    body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:radial-gradient(circle at top left,#eef3ff 0,#f6f8fc 28%,#f8fafc 100%);color:var(--text)}
    a{color:inherit;text-decoration:none} img{display:block;max-width:100%}
    .container{width:min(1180px,calc(100% - 32px));margin:0 auto}
    header{position:sticky;top:0;z-index:50;background:rgba(246,248,252,.82);backdrop-filter:blur(16px);border-bottom:1px solid rgba(219,227,241,.7)}
    .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:42px;height:42px;object-fit:contain}
    .brand b{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    .navlinks{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:10px 14px;align-items:center}
    .navlinks a{font-size:14px;color:var(--text);padding:8px 10px;border-radius:999px}
    .navlinks a:hover,.navlinks a.active{background:#edf3ff;color:var(--brand)}
    .menu-btn{display:none;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:12px;padding:10px 12px}
    .hero{padding:34px 0 26px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:stretch}
    .hero-main,.hero-side,.card,.panel,.faq-item,.quote,.article,.pricing,.timeline li,.compare,.form-wrap,.metrics,.table-wrap{background:rgba(255,255,255,.86);border:1px solid rgba(219,227,241,.92);box-shadow:var(--shadow);border-radius:var(--radius)}
    .hero-main{padding:34px;position:relative;overflow:hidden}
    .hero-main:before,.hero-main:after{content:"";position:absolute;border-radius:999px;filter:blur(2px)}
    .hero-main:before{width:220px;height:220px;background:radial-gradient(circle,rgba(33,92,255,.22),transparent 70%);right:-60px;top:-50px}
    .hero-main:after{width:160px;height:160px;background:radial-gradient(circle,rgba(17,184,165,.18),transparent 72%);left:-40px;bottom:-50px}
    .kicker{display:inline-flex;gap:8px;align-items:center;padding:8px 12px;border-radius:999px;background:linear-gradient(90deg,rgba(33,92,255,.12),rgba(122,92,255,.12));color:#2847b8;font-weight:700;font-size:13px}
    h1{margin:16px 0 12px;font-size:clamp(30px,4.6vw,52px);line-height:1.05;letter-spacing:-.03em}
    .lead{margin:0;color:var(--muted);font-size:16px;line-height:1.8;max-width:62ch}
    .cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 18px;border-radius:14px;font-weight:700;border:1px solid transparent;transition:.25s ease;cursor:pointer}
    .btn.primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 14px 28px rgba(33,92,255,.24)}
    .btn.secondary{background:#fff;color:var(--text);border-color:var(--line)}
    .btn:hover{transform:translateY(-2px)}
    .hero-side{padding:22px;display:grid;gap:14px}
    .side-top{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .stat{padding:16px;border-radius:18px;background:linear-gradient(180deg,#f7faff,#fff);border:1px solid #e5ebf7}
    .stat b{display:block;font-size:22px;margin-bottom:4px}
    .stat span{font-size:13px;color:var(--muted)}
    .mini-list{display:grid;gap:10px}
    .mini-item{display:flex;justify-content:space-between;gap:12px;padding:12px 14px;border-radius:14px;background:#f8fbff;border:1px solid #e6edf9;font-size:14px}
    section{padding:16px 0 28px}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:12px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);max-width:56ch;line-height:1.7}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .card{padding:20px}
    .card h3{margin:10px 0 8px;font-size:18px}
    .card p,.card li,.panel p,.quote p,.article p,.pricing p{color:var(--muted);line-height:1.7}
    .icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(33,92,255,.14),rgba(17,184,165,.14));color:var(--brand);font-weight:900}
    .pill-row{display:flex;flex-wrap:wrap;gap:10px}
    .pill{padding:9px 12px;border-radius:999px;background:#f4f7ff;border:1px solid #e1e8f6;font-size:13px;color:#30415e}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}
    .list{margin:0;padding:0;list-style:none;display:grid;gap:10px}
    .list li{padding:12px 14px;border-radius:14px;background:#f8fbff;border:1px solid #e6edf9}
    .table-wrap{overflow:auto}
    table{width:100%;border-collapse:collapse;min-width:820px}
    th,td{padding:14px 12px;border-bottom:1px solid #e7edf7;text-align:left;vertical-align:top}
    th{background:#f7faff}
    .badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:#edf7ff;color:#1461d2;font-size:12px;font-weight:700}
    .steps{counter-reset:step}
    .step{position:relative;padding-left:54px}
    .step:before{counter-increment:step;content:counter(step);position:absolute;left:0;top:0;width:36px;height:36px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;display:grid;place-items:center;font-weight:800}
    .compare{padding:20px}
    .score{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
    .stars{color:#ffb24a;font-size:22px;letter-spacing:2px}
    .pricing,.timeline,.faq-item,.quote,.article{padding:18px}
    .timeline{display:grid;gap:12px}
    .timeline li{list-style:none;padding:14px 14px 14px 16px;border-left:4px solid var(--brand);background:#fafcff}
    .faq{display:grid;gap:12px}
    .faq-item summary{cursor:pointer;list-style:none;font-weight:700}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item p{margin:10px 0 0}
    .quotes,.articles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .author{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:12px}
    .author b{display:block}
    .form-wrap{padding:22px}
    form{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    label{display:grid;gap:8px;font-size:14px;font-weight:600}
    input,select,textarea{width:100%;padding:13px 14px;border-radius:14px;border:1px solid #dbe3f1;background:#fff;font:inherit;color:var(--text)}
    textarea{min-height:120px;grid-column:1/-1;resize:vertical}
    .full{grid-column:1/-1}
    .footer{padding:24px 0 90px}
    footer{background:#eef3fb;border-top:1px solid #dce4f2;color:#21304a}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px;padding:26px 0}
    .footer a{color:#294fbe}
    .floatbox{position:fixed;right:18px;bottom:18px;z-index:60;display:grid;gap:10px}
    .floatbtn{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;padding:12px 14px;border-radius:16px;box-shadow:var(--shadow);font-weight:700}
    .backtop{background:#fff;color:var(--text);border:1px solid var(--line)}
    .mobile-toggle{display:none}
    .image-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .image-row img{border-radius:18px;border:1px solid #e3eaf6;box-shadow:var(--shadow)}
    .scroll-x{overflow:auto}
    .touch{display:flex;flex-wrap:wrap;gap:10px}
    .touch a{padding:9px 12px;border-radius:999px;background:#f5f8ff;border:1px solid #e2e9f6}
    .reveal{opacity:0;transform:translateY(12px);transition:.6s ease}
    .reveal.show{opacity:1;transform:none}
    @media (max-width: 980px){
      .hero-grid,.split,.grid-3,.grid-4,.quotes,.articles,.footer-grid{grid-template-columns:1fr}
      .navlinks{display:none}
      .menu-btn{display:inline-flex}
      .navlinks.open{display:flex;position:absolute;left:16px;right:16px;top:68px;background:#fff;padding:14px;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}
      form{grid-template-columns:1fr}
      .image-row{grid-template-columns:1fr}
    }