:root{
      --bg:#f6f8fc;--panel:#ffffff;--panel2:#f1f5ff;--text:#172033;--muted:#5f6b85;
      --line:#d9e2f2;--brand:#1c6fff;--brand2:#19b7a6;--accent:#ffb84d;--shadow:0 18px 40px rgba(28,111,255,.10);
      --radius:22px;--radius2:16px;--container:1180px;
    }
    *{box-sizing:border-box} html{scroll-behavior:smooth}
    body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:
      radial-gradient(circle at 12% 10%, rgba(25,183,166,.12), transparent 28%),
      radial-gradient(circle at 88% 14%, rgba(28,111,255,.12), transparent 25%),
      linear-gradient(180deg,#ffffff 0%,#f6f8fc 38%,#eef4ff 100%);color:var(--text)}
    a{color:var(--brand);text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
    header,main,footer{position:relative}
    .topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.84);backdrop-filter:blur(16px);border-bottom:1px solid rgba(217,226,242,.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:42px;height:42px;border-radius:12px;object-fit:cover;background:#fff;border:1px solid var(--line)}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    .navlinks{display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:flex-end}
    .navlinks a{font-size:14px;color:var(--text);padding:8px 10px;border-radius:999px}
    .navlinks a:hover,.navlinks a:focus{background:#eef4ff;color:var(--brand)}
    .nav-cta{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:.25s ease;box-shadow:none}
    .btn.primary{background:linear-gradient(135deg,var(--brand),#4f8cff);color:#fff;box-shadow:0 10px 24px rgba(28,111,255,.22)}
    .btn.primary:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(28,111,255,.28)}
    .btn.ghost{background:#edf3ff;color:var(--brand)}
    .menu-btn{display:none;background:#edf3ff;color:var(--text)}
    .hero{padding:28px 0 12px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:stretch}
    .hero-card{background:linear-gradient(180deg,rgba(255,255,255,.94),rgba(245,249,255,.92));border:1px solid rgba(217,226,242,.9);border-radius:28px;box-shadow:var(--shadow);padding:28px;position:relative;overflow:hidden}
    .hero-card:before,.hero-card:after{content:"";position:absolute;border-radius:50%;background:rgba(28,111,255,.09);filter:blur(2px)}
    .hero-card:before{width:180px;height:180px;right:-60px;top:-60px}
    .hero-card:after{width:120px;height:120px;right:90px;bottom:-40px;background:rgba(25,183,166,.12)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:#eff6ff;color:#1f5fc9;border:1px solid #d8e6ff;border-radius:999px;padding:8px 12px;font-size:13px;font-weight:700}
    h1{margin:16px 0 14px;font-size:clamp(32px,5vw,54px);line-height:1.08;letter-spacing:-.02em}
    .lead{font-size:17px;line-height:1.8;color:var(--muted);max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
    .mini{background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:18px;padding:14px}
    .mini b{display:block;font-size:18px;margin-bottom:6px}
    .mini span{font-size:13px;color:var(--muted);line-height:1.6}
    .side-card{display:grid;gap:14px}
    .stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .stat{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:18px;box-shadow:0 12px 26px rgba(24,39,75,.06)}
    .stat .num{font-size:28px;font-weight:800;color:var(--brand)}
    .stat .txt{font-size:13px;color:var(--muted);margin-top:6px;line-height:1.6}
    section{padding:18px 0}
    .section-card{background:rgba(255,255,255,.88);border:1px solid rgba(217,226,242,.85);border-radius:26px;box-shadow:0 10px 28px rgba(24,39,75,.05);padding:24px}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:18px}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);line-height:1.7;max-width:70ch}
    .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{background:linear-gradient(180deg,#fff,#f8fbff);border:1px solid var(--line);border-radius:22px;padding:20px;transition:.25s ease;box-shadow:0 10px 24px rgba(24,39,75,.04)}
    .card:hover{transform:translateY(-4px);box-shadow:0 18px 34px rgba(28,111,255,.12)}
    .card h3{margin:0 0 10px;font-size:18px}
    .card p,.card li{color:var(--muted);line-height:1.75}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 12px;border-radius:999px;background:#eff4ff;border:1px solid #dce7ff;color:#234; font-size:13px}
    .image-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .image-row img{width:100%;border-radius:20px;border:1px solid var(--line);box-shadow:0 14px 30px rgba(24,39,75,.06);object-fit:cover}
    .timeline{display:grid;gap:14px}
    .step{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start;padding:18px;border-radius:18px;background:#f8fbff;border:1px solid var(--line)}
    .step i{font-style:normal;width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:800}
    .table-wrap{overflow:auto;border-radius:18px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:820px}
    th,td{padding:14px 16px;border-bottom:1px solid #edf1f7;text-align:left;vertical-align:top}
    th{background:#f4f7ff;color:#203052}
    tbody tr:hover{background:#fbfdff}
    .score{display:grid;grid-template-columns:1fr auto;gap:14px;align-items:center}
    .rating{background:linear-gradient(135deg,#e8f2ff,#effaf8);border:1px solid #d7e8ff;border-radius:20px;padding:18px;text-align:center}
    .rating strong{display:block;font-size:38px;color:var(--brand)}
    .compare-badge{display:inline-flex;align-items:center;gap:8px;background:#f2f8ff;color:#1456c2;border:1px solid #d8e7ff;border-radius:999px;padding:7px 11px;font-size:13px;font-weight:700}
    .comments{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .comment{position:relative}
    .comment .role{font-size:13px;color:#1b5ccf;font-weight:700;margin-bottom:8px}
    .comment .quote{font-size:15px;line-height:1.8;color:var(--text)}
    .comment .name{margin-top:12px;font-size:13px;color:var(--muted)}
    .article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .article{display:flex;flex-direction:column;gap:8px}
    .article small{color:#1b5ccf;font-weight:700}
    .faq details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 18px}
    .faq details+details{margin-top:12px}
    .faq summary{cursor:pointer;list-style:none;font-weight:700}
    .faq summary::-webkit-details-marker{display:none}
    .faq p{margin:12px 0 0;color:var(--muted);line-height:1.8}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:flex;flex-direction:column;gap:8px}
    label{font-size:14px;font-weight:700;color:#203052}
    input,select,textarea{width:100%;border:1px solid var(--line);border-radius:14px;padding:13px 14px;font:inherit;color:var(--text);background:#fff;outline:none}
    textarea{min-height:124px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#9cbcff;box-shadow:0 0 0 4px rgba(28,111,255,.10)}
    .full{grid-column:1/-1}
    .footer{background:#eef4ff;border-top:1px solid #d8e3f7;color:#1d2a44;margin-top:8px}
    .footer a{color:#184fc0}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:18px;padding:24px 0}
    .footer small{color:var(--muted);line-height:1.8}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .float{position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px}
    .float a,.float button{width:48px;height:48px;border:none;border-radius:16px;background:linear-gradient(135deg,var(--brand),#4f8cff);color:#fff;display:grid;place-items:center;box-shadow:0 12px 26px rgba(28,111,255,.22);cursor:pointer}
    .float a:hover,.float button:hover{transform:translateY(-2px)}
    .客服{position:fixed;left:16px;bottom:16px;z-index:60;background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow);width:min(240px,calc(100vw - 32px))}
    .客服 img{border-radius:14px;border:1px solid var(--line)}
    .reveal{opacity:0;transform:translateY(16px);transition:.7s ease}
    .reveal.show{opacity:1;transform:translateY(0)}
    @media (max-width: 980px){
      .hero-grid,.grid-4,.grid-3,.comments,.footer-grid,.image-row,.article-list{grid-template-columns:1fr}
      .hero-points,.stat-grid,.form-grid{grid-template-columns:1fr 1fr}
      .section-head,.score{grid-template-columns:1fr;display:grid}
      .navlinks{display:none}
      .menu-btn{display:inline-flex}
    }
    @media (max-width: 640px){
      .hero-card,.section-card{padding:18px;border-radius:22px}
      h1{font-size:30px}
      .hero-points,.stat-grid,.form-grid{grid-template-columns:1fr}
      .nav{padding:12px 0}
      .brand strong{font-size:16px}
      .brand span{display:none}
      .客服{display:none}
      .float{right:12px;bottom:12px}
    }
    .mobile-menu{display:none;padding:0 0 14px}
    .mobile-menu.open{display:block}
    .mobile-menu a{display:block;padding:12px 0;border-top:1px solid #edf1f7;color:var(--text)}
    .muted{color:var(--muted)}