:root{
      --bg:#fffaf4;
      --bg2:#f5f7ff;
      --card:#ffffff;
      --text:#213042;
      --muted:#5f6b7a;
      --line:#e7e0d9;
      --primary:#ff7a59;
      --primary2:#5f7cff;
      --accent:#27c4b7;
      --warm:#ffd86b;
      --shadow:0 18px 50px rgba(33,48,66,.08);
      --radius:22px;
      --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:linear-gradient(180deg,var(--bg) 0%,#fff 18%,var(--bg2) 100%);color:var(--text)}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{max-width:var(--container);margin:0 auto;padding:0 20px}
    header{position:sticky;top:0;z-index:50;background:rgba(255,250,244,.88);backdrop-filter:blur(14px);border-bottom:1px solid rgba(231,224,217,.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:44px;height:44px;object-fit:contain;border-radius:12px;background:#fff;box-shadow:0 8px 20px rgba(0,0,0,.06)}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:3px}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .menu-btn{display:none;border:1px solid var(--line);background:#fff;padding:10px 12px;border-radius:12px;color:var(--text)}
    .nav-links{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
    .nav-links a{font-size:14px;color:var(--muted);padding:8px 10px;border-radius:999px;transition:.25s}
    .nav-links a:hover,.nav-links a.active{background:#fff;color:var(--text);box-shadow:0 10px 20px rgba(0,0,0,.05)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:999px;padding:13px 18px;font-weight:700;cursor:pointer;transition:.25s ease;box-shadow:0 10px 24px rgba(255,122,89,.18)}
    .btn-primary{background:linear-gradient(135deg,var(--primary),#ff9a62);color:#fff}
    .btn-secondary{background:#fff;color:var(--text);border:1px solid var(--line);box-shadow:none}
    .btn:hover{transform:translateY(-2px)}
    .hero{padding:42px 0 26px}
    .hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:22px;align-items:stretch}
    .hero-main,.hero-side,.section-card,.panel,.faq-item,.review,.article,.flow-step,.stat,.tag-cloud,.compare,.case,.network,.price-box,.form-box,.assist-card{background:var(--card);border:1px solid rgba(231,224,217,.9);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-main{padding:34px;position:relative;overflow:hidden;background:
      radial-gradient(circle at 20% 20%, rgba(255,122,89,.12), transparent 28%),
      radial-gradient(circle at 85% 18%, rgba(95,124,255,.16), transparent 26%),
      linear-gradient(180deg,#fff 0%,#fffdfb 100%)}
    .hero-main:after{content:"";position:absolute;right:-70px;top:-70px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle, rgba(255,216,107,.35), rgba(255,216,107,0) 70%);pointer-events:none}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(95,124,255,.10);color:#3149af;border:1px solid rgba(95,124,255,.16);padding:8px 12px;border-radius:999px;font-size:13px;font-weight:700}
    h1{margin:16px 0 14px;font-size:clamp(30px,5vw,54px);line-height:1.08;letter-spacing:-.03em}
    .lead{margin:0;color:var(--muted);font-size:16px;line-height:1.8;max-width:62ch}
    .hero-points{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}
    .pill{padding:9px 12px;border-radius:999px;background:#fff8f0;border:1px solid #f2e0d4;color:#7a4e37;font-size:13px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}
    .hero-side{padding:24px}
    .side-title{font-size:18px;margin:0 0 12px}
    .side-list{display:grid;gap:12px}
    .mini{padding:14px 14px 14px 16px;border-radius:18px;background:linear-gradient(180deg,#fff,#fffaf8);border:1px solid #f0e6df}
    .mini strong{display:block;font-size:15px;margin-bottom:4px}
    .mini span{color:var(--muted);font-size:13px;line-height:1.6}
    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:28px}
    .section-head p{margin:0;color:var(--muted);max-width:58ch;line-height:1.7}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .stat{padding:20px}
    .stat b{display:block;font-size:28px;margin-bottom:6px;color:#18253a}
    .stat span{color:var(--muted);font-size:14px;line-height:1.6}
    .service-card,.case,.article,.review,.flow-step,.compare,.network,.price-box,.form-box,.assist-card{padding:22px}
    .service-card h3,.case h3,.article h3,.review h3,.flow-step h3,.price-box h3,.assist-card h3{margin:0 0 10px;font-size:18px}
    .service-card p,.case p,.article p,.review p,.flow-step p,.price-box p,.assist-card p{margin:0;color:var(--muted);line-height:1.72}
    .icon{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(255,122,89,.14),rgba(95,124,255,.14));margin-bottom:14px;font-size:20px}
    .tag-cloud{padding:20px;display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:9px 12px;border-radius:999px;background:#f8fbff;border:1px solid #e6eefc;font-size:13px;color:#355}
    .timeline{display:grid;gap:12px}
    .step{display:grid;grid-template-columns:54px 1fr;gap:14px;align-items:start;padding:16px;border-radius:18px;background:#fff;border:1px solid #efe7e0}
    .step-num{width:54px;height:54px;border-radius:16px;background:linear-gradient(135deg,var(--primary2),#8ea2ff);color:#fff;display:grid;place-items:center;font-weight:800}
    table{width:100%;border-collapse:separate;border-spacing:0;overflow:hidden}
    th,td{padding:14px 12px;border-bottom:1px solid var(--line);text-align:left;font-size:14px;vertical-align:top}
    th{background:#fff8f0;color:#364455;font-size:13px}
    .compare-wrap{overflow-x:auto}
    .score{display:inline-flex;align-items:center;gap:6px;background:#fff3dd;color:#8a5d00;padding:7px 10px;border-radius:999px;font-weight:700}
    .rating{display:grid;gap:10px}
    .stars{letter-spacing:3px;color:#ffb400;font-size:18px}
    details{border-radius:18px;background:#fff;border:1px solid #efe7e0;overflow:hidden}
    summary{cursor:pointer;list-style:none;padding:18px 18px;font-weight:700}
    summary::-webkit-details-marker{display:none}
    details p{margin:0;padding:0 18px 18px;color:var(--muted);line-height:1.75}
    .review-meta{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}
    .avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#ffdfb7,#ffd0e3);font-weight:800;color:#7b3d39}
    .review-top{display:flex;align-items:center;gap:12px}
    .article-list{display:grid;gap:14px}
    .article-item{display:flex;justify-content:space-between;gap:14px;padding:16px;border-radius:18px;background:#fff;border:1px solid #efe7e0}
    .article-item small{color:var(--muted)}
    .article-item strong{display:block;margin-bottom:6px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    input,select,textarea{width:100%;border:1px solid #ddd4cc;border-radius:14px;padding:13px 14px;font:inherit;background:#fff;color:var(--text)}
    textarea{min-height:120px;resize:vertical}
    label{display:block;font-size:14px;font-weight:700;margin-bottom:8px}
    .full{grid-column:1/-1}
    .footer-top{padding:16px 0 24px}
    footer{margin-top:10px;background:#1f2937;color:#e7edf5}
    footer .container{padding-top:28px;padding-bottom:24px}
    footer a{color:#fff}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .8fr;gap:18px}
    .footer-card{padding:0}
    .footer-card p,.footer-card li,.footer-card span{color:#c7d2e1;line-height:1.8}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.08)}
    .copyright{margin-top:18px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);color:#c7d2e1;font-size:13px}
    .float-box{position:fixed;right:18px;bottom:18px;z-index:60;display:grid;gap:10px}
    .float-btn{width:52px;height:52px;border-radius:18px;background:linear-gradient(135deg,var(--primary),#ff9a62);color:#fff;display:grid;place-items:center;box-shadow:0 14px 28px rgba(255,122,89,.3)}
    .float-btn.secondary{background:#fff;color:var(--text);border:1px solid var(--line)}
    .wechat-card{display:none;position:fixed;right:18px;bottom:84px;z-index:60;width:240px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}
    .wechat-card img{border-radius:14px}
    .muted{color:var(--muted)}
    .banner-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .banner-strip img,.case img{border-radius:18px;border:1px solid #efe7e0;overflow:hidden}
    .network-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
    .network-item{padding:16px;border-radius:18px;background:linear-gradient(180deg,#fff,#fffaf7);border:1px solid #efe7e0}
    .assist-grid{display:grid;grid-template-columns:1fr .8fr;gap:16px}
    .assist-note{padding:20px;border-radius:18px;background:linear-gradient(135deg,rgba(95,124,255,.10),rgba(39,196,183,.10));border:1px solid rgba(95,124,255,.15)}
    .fade{opacity:0;transform:translateY(18px);transition:.6s ease}
    .fade.show{opacity:1;transform:none}
    .mobile-only{display:none}
    @media (max-width: 980px){
      .hero-grid,.grid-4,.grid-3,.grid-2,.footer-grid,.assist-grid,.network-list,.banner-strip{grid-template-columns:1fr 1fr}
      .hero-main{padding:28px}
      .nav-links{display:none;position:absolute;left:20px;right:20px;top:70px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow)}
      .nav-links.open{display:flex;flex-direction:column;align-items:stretch}
      .menu-btn{display:inline-flex}
      .mobile-only{display:inline-flex}
    }
    @media (max-width: 680px){
      .container{padding:0 16px}
      .hero-grid,.grid-4,.grid-3,.grid-2,.footer-grid,.assist-grid,.network-list,.banner-strip,.form-grid{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
      .nav{position:relative}
      h1{font-size:30px}
      .hero-main,.hero-side,.service-card,.case,.article,.review,.flow-step,.compare,.network,.price-box,.form-box,.assist-card{padding:18px}
      .article-item{flex-direction:column}
      .float-box{right:12px;bottom:12px}
      .wechat-card{right:12px;bottom:78px;width:220px}
    }