:root{
      --bg:#f6f8fc;
      --panel:#ffffff;
      --panel-2:#f2f6ff;
      --text:#122033;
      --muted:#5b6b84;
      --line:#dbe3f0;
      --primary:#ff4d6d;
      --primary-2:#4f7cff;
      --accent:#12b8a6;
      --warm:#ffb703;
      --shadow:0 18px 40px rgba(18,32,51,.10);
      --radius:20px;
      --radius-sm:14px;
      --max: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",Arial,sans-serif;background:
      radial-gradient(circle at top left, rgba(79,124,255,.10), transparent 28%),
      radial-gradient(circle at top right, rgba(255,77,109,.10), transparent 25%),
      linear-gradient(180deg,#fbfcff 0%, #f5f7fd 100%);
      color:var(--text);line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    .container{width:min(var(--max),calc(100% - 32px));margin:0 auto}
    .topbar{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.86);backdrop-filter:blur(14px);border-bottom:1px solid rgba(219,227,240,.85)}
    .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 .mark{width:42px;height:42px;border-radius:12px;overflow:hidden;box-shadow:var(--shadow);background:#fff;display:grid;place-items:center;flex:0 0 auto}
    .brand h2{font-size:1rem;line-height:1.2;margin:0}
    .brand p{margin:0;color:var(--muted);font-size:.88rem}
    .navlinks{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .navlinks a{font-size:.95rem;color:var(--text);padding:8px 10px;border-radius:10px}
    .navlinks a:hover,.navlinks a:focus-visible{background:#eef3ff;color:#193a78;outline:none}
    .nav-actions{display:flex;gap:10px;align-items:center}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:14px;padding:12px 18px;font-weight:700;cursor:pointer;transition:.25s ease;box-shadow:none}
    .btn-primary{background:linear-gradient(135deg,var(--primary),#ff7a59);color:#fff;box-shadow:0 10px 22px rgba(255,77,109,.22)}
    .btn-secondary{background:#eef3ff;color:#193a78}
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);width:44px;height:44px;border-radius:14px}
    .hero{padding:38px 0 20px}
    .hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:stretch}
    .hero-main,.hero-side,.section-card,.form-card,.faq-card,.case-card,.review-card,.info-card,.timeline-card,.compare-card,.price-card,.article-card{background:var(--panel);border:1px solid rgba(219,227,240,.9);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-main{padding:34px;position:relative;overflow:hidden}
    .hero-main::before,.hero-side::before{content:"";position:absolute;inset:auto -40px -60px auto;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle, rgba(255,77,109,.14), transparent 65%)}
    .hero-main::after{content:"";position:absolute;inset:20px auto auto 20px;width:120px;height:120px;border-radius:32px;background:linear-gradient(135deg, rgba(79,124,255,.12), rgba(18,184,166,.10));transform:rotate(18deg)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:linear-gradient(90deg, rgba(255,77,109,.12), rgba(79,124,255,.12));color:#193a78;font-weight:700;font-size:.88rem}
    h1{font-size:clamp(2rem,4vw,3.4rem);line-height:1.08;margin:16px 0 14px;letter-spacing:-.03em}
    .hero p{margin:0 0 18px;color:var(--muted);font-size:1.03rem;max-width:58ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .hero-highlights{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px}
    .mini-stat{background:linear-gradient(180deg,#f8faff,#eef4ff);border:1px solid #dce6fb;border-radius:18px;padding:14px}
    .mini-stat strong{display:block;font-size:1.2rem}
    .mini-stat span{color:var(--muted);font-size:.9rem}
    .hero-side{padding:22px;display:grid;gap:14px;position:relative}
    .side-badge{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;padding:18px;border-radius:18px;background:linear-gradient(135deg,#101c33,#233963);color:#fff}
    .side-badge small{color:rgba(255,255,255,.72)}
    .hero-list{display:grid;gap:10px}
    .hero-list div{display:flex;justify-content:space-between;gap:12px;padding:12px 14px;border-radius:14px;background:#f7faff;border:1px solid #e1e9f8;color:#20304b}
    .section{padding:18px 0 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:14px}
    .section-head h2{margin:0;font-size:1.6rem}
    .section-head p{margin:0;color:var(--muted);max-width:62ch}
    .metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .metric{padding:18px;background:linear-gradient(180deg,#fff,#f7faff);border-radius:18px;border:1px solid var(--line)}
    .metric strong{font-size:1.6rem;display:block}
    .metric span{color:var(--muted);font-size:.92rem}
    .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{padding:20px}
    .card h3{margin:0 0 8px;font-size:1.08rem}
    .card p,.card li{color:var(--muted)}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:8px 12px;border-radius:999px;background:#f4f7ff;border:1px solid #dce6fb;color:#23406f;font-size:.9rem}
    .timeline{display:grid;gap:12px}
    .step{display:grid;grid-template-columns:52px 1fr;gap:14px;padding:18px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .num{width:52px;height:52px;border-radius:16px;background:linear-gradient(135deg,var(--primary-2),var(--accent));color:#fff;display:grid;place-items:center;font-weight:800}
    .compare-wrap{overflow:auto}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:14px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    th{background:#f5f8ff;color:#20304b}
    tbody tr:hover{background:#fbfdff}
    .score{font-weight:800;color:#0e5f55}
    .faq details{border:1px solid var(--line);border-radius:16px;background:#fff;overflow:hidden}
    .faq details+details{margin-top:12px}
    .faq summary{cursor:pointer;list-style:none;padding:16px 18px;font-weight:700;display:flex;justify-content:space-between;gap:12px}
    .faq summary::-webkit-details-marker{display:none}
    .faq .ans{padding:0 18px 16px;color:var(--muted)}
    .quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .quote{padding:20px;border-radius:18px;background:linear-gradient(180deg,#fff,#f7faff);border:1px solid var(--line)}
    .quote .meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}
    .avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,#ff7a59,#4f7cff)}
    .articles{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .article-card{padding:18px}
    .article-card a{display:inline-flex;margin-top:12px;color:#1d4ed8;font-weight:700}
    .form-card{padding:22px}
    form{display:grid;gap:12px}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    input,select,textarea{width:100%;border:1px solid var(--line);background:#fff;border-radius:14px;padding:13px 14px;font:inherit;color:var(--text);outline:none;transition:border-color .2s, box-shadow .2s}
    textarea{min-height:124px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#7aa0ff;box-shadow:0 0 0 4px rgba(79,124,255,.12)}
    .footer{margin-top:26px;background:#0f1a2f;color:#dce4f8}
    .footer a{color:#fff}
    .footer .container{padding:28px 0}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:22px;align-items:start}
    .footer small,.footer p,.footer li{color:#b7c4df}
    .footer .links{display:flex;flex-wrap:wrap;gap:10px}
    .footer .links a{padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.08)}
    .sticky-tools{position:fixed;right:16px;bottom:16px;z-index:70;display:grid;gap:10px}
    .float-btn{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),#ff7a59);color:#fff;box-shadow:0 16px 28px rgba(255,77,109,.26);border:0}
    .chat-box{position:fixed;right:16px;top:86px;z-index:65;width:min(320px,calc(100vw - 32px));background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:20px;padding:14px;display:none}
    .chat-box.open{display:block;animation:fadeIn .22s ease}
    .chat-box .qr{display:grid;grid-template-columns:88px 1fr;gap:12px;align-items:center}
    .chat-box .qr img{border-radius:12px;border:1px solid var(--line)}
    .muted{color:var(--muted)}
    .divider{height:1px;background:var(--line);margin:16px 0}
    .banner-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .image-card{padding:12px}
    .image-card img{border-radius:16px;width:100%;object-fit:cover}
    .service-net{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .service-net .card{min-height:100%}
    .floating-home{display:inline-flex;align-items:center;gap:8px;font-weight:800}
    .home-link{display:inline-flex;align-items:center;gap:8px}
    .mobile-only{display:none}
    .section-card,.price-card,.info-card,.timeline-card,.compare-card,.faq-card,.case-card{padding:20px}
    .scroll-x{overflow-x:auto}
    @keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
    .reveal{opacity:0;transform:translateY(14px);transition:.6s ease}
    .reveal.show{opacity:1;transform:none}
    @media (max-width: 980px){
      .hero-grid,.footer-grid,.metrics,.grid-3,.grid-2,.quotes,.articles,.service-net,.banner-row{grid-template-columns:1fr 1fr}
      .hero-highlights{grid-template-columns:1fr}
      .navlinks{display:none;position:absolute;left:16px;right:16px;top:70px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .navlinks.open{display:flex}
      .menu-toggle{display:inline-grid;place-items:center}
      .mobile-only{display:block}
      .form-grid{grid-template-columns:1fr}
    }
    @media (max-width: 640px){
      .container{width:min(var(--max),calc(100% - 20px))}
      .hero-main,.hero-side,.section-card,.form-card,.faq-card,.case-card,.review-card,.info-card,.timeline-card,.compare-card,.price-card,.article-card{border-radius:18px}
      .hero-main{padding:24px}
      .hero-side{padding:18px}
      .hero-grid,.footer-grid,.metrics,.grid-3,.grid-2,.quotes,.articles,.service-net,.banner-row{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
      .nav{padding:12px 0}
      h1{font-size:2rem}
      .nav-actions .btn-secondary{display:none}
    }