:root{--bg:#f4f8fc;--panel:#ffffff;--panel2:#eef5ff;--text:#183042;--muted:#587085;--line:#d9e6f2;--brand:#0a7cff;--brand2:#13b7a6;--gold:#ffb020;--shadow:0 18px 45px rgba(17,51,87,.09);--radius:20px}
    *{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:linear-gradient(180deg,#f7fbff 0%,#f2f7fb 42%,#eef6ff 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(247,251,255,.88);backdrop-filter:blur(12px);border-bottom:1px solid rgba(217,230,242,.8)}
    .topbar{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;background:#fff;border:1px solid var(--line);border-radius:14px;padding:6px}
    .brand h2{margin:0;font-size:18px;line-height:1.1}.brand p{margin:2px 0 0;color:var(--muted);font-size:12px}
    nav{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}.navlinks{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:14px;color:var(--muted)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:999px;padding:12px 18px;font-weight:700;transition:.25s ease;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--brand),#2f9cff);color:#fff;box-shadow:0 12px 26px rgba(10,124,255,.22)} .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn:hover{transform:translateY(-2px);box-shadow:var(--shadow)} .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px}
    .hero{padding:34px 0 18px}.hero-grid{display:grid;grid-template-columns:1.35fr .9fr;gap:22px;align-items:stretch}
    .hero-card{position:relative;overflow:hidden;background:linear-gradient(135deg,#ffffff 0%,#eff7ff 48%,#eefcf8 100%);border:1px solid rgba(217,230,242,.9);border-radius:28px;padding:34px;box-shadow:var(--shadow)}
    .hero-card:before,.hero-card:after{content:"";position:absolute;border-radius:50%;background:radial-gradient(circle,rgba(19,183,166,.15),transparent 65%);pointer-events:none}
    .hero-card:before{width:280px;height:280px;right:-110px;top:-90px}.hero-card:after{width:220px;height:220px;left:-100px;bottom:-110px}
    .kicker{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:#e9f4ff;color:#0b66d1;font-size:13px;font-weight:700}
    h1{margin:16px 0 14px;font-size:clamp(30px,4.6vw,54px);line-height:1.08;letter-spacing:-.03em}
    .lead{max-width:760px;margin:0;color:#365066;font-size:16px;line-height:1.9}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}.meta-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:22px}
    .meta{background:rgba(255,255,255,.75);border:1px solid rgba(217,230,242,.8);border-radius:16px;padding:12px 14px;min-width:150px}.meta b{display:block;font-size:18px}.meta span{color:var(--muted);font-size:13px}
    .side-card{display:flex;flex-direction:column;gap:16px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);padding:22px}
    .panel h3{margin:0 0 10px;font-size:20px}.panel p,.panel li{color:var(--muted);line-height:1.85}.quick-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .mini{background:linear-gradient(180deg,#fafdff,#f2f8ff);border:1px solid var(--line);border-radius:18px;padding:14px}
    .mini b{display:block;font-size:18px;margin-bottom:3px}.section{padding:24px 0}.section-title{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}
    .section-title h2{margin:0;font-size:28px}.section-title p{margin:0;color:var(--muted)} .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .card{background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:0 10px 24px rgba(17,51,87,.05);transition:.25s ease}
    .card:hover{transform:translateY(-4px);box-shadow:var(--shadow)} .card h3{margin:0 0 10px;font-size:18px}.card p,.card li{color:var(--muted);line-height:1.8}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}.tag{padding:9px 13px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#355168;font-size:13px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.step{position:relative;padding:20px 18px 18px}.step .num{display:inline-flex;width:36px;height:36px;border-radius:12px;align-items:center;justify-content:center;background:linear-gradient(135deg,#0a7cff,#18b7a7);color:#fff;font-weight:800;margin-bottom:12px}
    .table-wrap{overflow:auto;background:var(--panel);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)} table{width:100%;border-collapse:collapse;min-width:760px} th,td{padding:16px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top} th{background:#f5faff;color:#234055;font-size:14px} td{color:#41596d}
    .rating{display:grid;grid-template-columns:.9fr 1.1fr;gap:16px;align-items:stretch}.scorebox{background:linear-gradient(135deg,#0a7cff,#1cc6b0);color:#fff;border-radius:24px;padding:24px;box-shadow:var(--shadow)} .scorebox .big{font-size:52px;font-weight:900;line-height:1}
    .reviews,.articles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.quote{font-size:15px;line-height:1.85;color:#324e63}.quote:before{content:"“";color:#0a7cff;font-size:30px;line-height:0;vertical-align:-10px}
    .accordion{display:grid;gap:12px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}.faq-q{width:100%;text-align:left;padding:16px 18px;border:0;background:#fff;color:var(--text);font-weight:700;display:flex;align-items:center;justify-content:space-between;gap:12px;cursor:pointer}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 18px;color:var(--muted)} .faq-item.open .faq-a{max-height:180px;padding-bottom:16px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.input,.select,.textarea{width:100%;border:1px solid var(--line);background:#fff;border-radius:14px;padding:14px 15px;color:var(--text);font:inherit;outline:none}.textarea{min-height:130px;resize:vertical}
    .input:focus,.select:focus,.textarea:focus{border-color:#7ab7ff;box-shadow:0 0 0 4px rgba(10,124,255,.1)}
    .footer{margin-top:18px;background:#0f2740;color:#dbe8f4;padding:24px 0 22px}.footer a{color:#fff}.footer-grid{display:grid;grid-template-columns:1.1fr .9fr 1fr;gap:18px;align-items:start}
    .footer small,.footer p,.footer li{color:#b9cce0;line-height:1.8}.footer .tag{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.08);color:#eaf3ff}
    .fixed-tools{position:fixed;right:16px;bottom:18px;display:grid;gap:10px;z-index:60}.float-btn{width:48px;height:48px;border-radius:16px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);display:grid;place-items:center;cursor:pointer}
    .float-contact{position:fixed;left:16px;bottom:18px;z-index:60;display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:10px 12px;box-shadow:var(--shadow)}
    .reveal{opacity:0;transform:translateY(18px);transition:.6s ease}.reveal.in{opacity:1;transform:none}
    .aside-stack{display:grid;gap:16px}
    .image-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.image-row img{border-radius:18px;border:1px solid var(--line);background:#fff}
    @media (max-width: 980px){.hero-grid,.rating,.grid-3,.reviews,.articles,.footer-grid,.steps{grid-template-columns:1fr 1fr}.hero-card{padding:26px}.navlinks{display:none}.menu-btn{display:inline-flex}.nav-open .navlinks{display:flex;position:absolute;left:0;right:0;top:100%;background:rgba(247,251,255,.98);padding:14px 16px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}nav{position:relative}}
    @media (max-width: 720px){.hero-grid,.rating,.grid-3,.reviews,.articles,.footer-grid,.steps,.image-row,.form-grid,.quick-grid{grid-template-columns:1fr}.container{width:min(100% - 24px,1180px)} .topbar{padding:12px 0}.hero{padding-top:20px}.meta-row{grid-template-columns:1fr}.section-title{align-items:flex-start;flex-direction:column}.float-contact{max-width:calc(100vw - 32px)} .fixed-tools,.float-contact{right:14px;left:auto}}