:root{--bg:#f7f4ef;--card:#ffffff;--text:#18212f;--muted:#5f6b7a;--line:#e6dfd4;--primary:#ff4d5e;--primary2:#255cff;--accent:#ffb000;--shadow:0 18px 40px rgba(31,42,55,.08);--radius:20px}
    *{box-sizing:border-box} html{scroll-behavior:smooth}
    body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:linear-gradient(180deg,#fff7f1 0%,#f7f4ef 22%,#f5f7fb 100%);color:var(--text)}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    .container{width:min(1180px,calc(100% - 32px));margin:0 auto}
    header{position:sticky;top:0;z-index:50;background:rgba(247,244,239,.88);backdrop-filter:blur(14px);border-bottom:1px solid rgba(230,223,212,.75)}
    .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 strong{font-size:18px;letter-spacing:.4px}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:2px}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)}
    nav ul{display:flex;flex-wrap:wrap;gap:8px 10px;list-style:none;margin:0;padding:0;align-items:center;justify-content:flex-end}
    nav a{display:inline-flex;align-items:center;padding:9px 12px;border-radius:999px;color:#243041;font-size:14px}
    nav a:hover{background:#fff;box-shadow:0 8px 20px rgba(0,0,0,.06)}
    .home-link,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 18px;font-weight:700;border:1px solid transparent;transition:.25s ease}
    .home-link{background:linear-gradient(135deg,var(--primary) 0%,#ff7b3a 100%);color:#fff;box-shadow:0 14px 30px rgba(255,77,94,.24)}
    .btn-outline{border-color:rgba(37,92,255,.18);background:#fff;color:var(--primary2)}
    .btn:hover,.home-link:hover{transform:translateY(-2px)}
    main{display:block}
    section{padding:64px 0}
    .hero{padding:34px 0 60px;position:relative;overflow:hidden}
    .hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(10px);pointer-events:none}
    .hero::before{width:280px;height:280px;background:rgba(255,77,94,.10);right:-90px;top:10px}
    .hero::after{width:220px;height:220px;background:rgba(37,92,255,.10);left:-100px;bottom:10px}
    .hero-grid{display:grid;grid-template-columns:1.35fr .85fr;gap:24px;align-items:stretch}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--muted);font-size:13px}
    h1{font-size:clamp(34px,5vw,58px);line-height:1.08;margin:16px 0 14px;letter-spacing:-.02em}
    .lead{font-size:18px;line-height:1.8;color:var(--muted);max-width:56ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
    .hero-card{background:linear-gradient(180deg,#ffffff 0%,#fff8f4 100%);border:1px solid rgba(230,223,212,.9);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}
    .hero-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:16px}
    .metric,.card,.panel,.quote,.article,.review,.form-box,.compare,.faq-item,.case,.timeline li{background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:0 10px 24px rgba(31,42,55,.05)}
    .metric{padding:16px}
    .metric b{display:block;font-size:24px;margin-bottom:4px}
    .metric span{color:var(--muted);font-size:13px}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:22px}
    .section-head h2{font-size:30px;margin:0}
    .section-head p{margin:0;color:var(--muted);max-width:62ch;line-height:1.7}
    .grid-3,.grid-4{display:grid;gap:16px}
    .grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
    .grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
    .card{padding:20px;transition:.25s ease}
    .card:hover,.review:hover,.article:hover,.case:hover{transform:translateY(-4px);box-shadow:0 16px 30px rgba(31,42,55,.08)}
    .icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(255,77,94,.12),rgba(37,92,255,.12));color:var(--primary2);font-weight:800;margin-bottom:14px}
    .card h3,.panel h3,.review h3,.article h3,.case h3{margin:0 0 10px;font-size:18px}
    .card p,.panel p,.review p,.article p,.case p{margin:0;color:var(--muted);line-height:1.75}
    .chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
    .chip{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:#2c3746}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}
    .panel{padding:22px}
    .steps{counter-reset:s}
    .step{display:flex;gap:14px;padding:18px 0;border-top:1px dashed var(--line)}
    .step:first-child{border-top:0;padding-top:0}
    .step::before{counter-increment:s;content:counter(s);width:32px;height:32px;flex:0 0 32px;border-radius:999px;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;display:grid;place-items: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:860px}
    th,td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    th{background:#fff5f0;font-size:14px}
    td{color:#324050}
    .badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:#eef4ff;color:#2247b6;font-size:12px;font-weight:700}
    .compare .score{font-size:42px;font-weight:900;color:var(--primary)}
    .faq{display:grid;gap:12px}
    .faq-item summary{cursor:pointer;list-style:none;padding:18px 20px;font-weight:700}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item .answer{padding:0 20px 18px;color:var(--muted);line-height:1.75}
    .review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .review{padding:20px}
    .review .meta{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:12px}
    .stars{color:#ff9800;letter-spacing:2px}
    .article-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .article{padding:20px}
    .article time{display:block;color:var(--muted);font-size:13px;margin-bottom:10px}
    .timeline{list-style:none;margin:0;padding:0;display:grid;gap:12px}
    .timeline li{padding:16px 18px}
    .timeline strong{display:block;margin-bottom:6px}
    .tags{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#394655;font-size:13px}
    .form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .field{display:flex;flex-direction:column;gap:8px}
    label{font-size:14px;font-weight:700}
    input,select,textarea{width:100%;border:1px solid #d8dfe8;border-radius:14px;padding:13px 14px;font:inherit;background:#fff;color:var(--text)}
    textarea{min-height:120px;resize:vertical}
    .full{grid-column:1/-1}
    .submit-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:16px}
    footer{background:#16202f;color:#e9eef7;padding:34px 0 28px;margin-top:0}
    footer a{color:#ffffff}
    footer p,footer li,footer span{color:#c7d0de}
    .footer-grid{display:grid;grid-template-columns:1.2fr .9fr .9fr;gap:18px}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{display:inline-flex;padding:8px 12px;border:1px solid rgba(255,255,255,.14);border-radius:999px;background:rgba(255,255,255,.04)}
    .floating{position:fixed;right:16px;bottom:16px;z-index:60;display:flex;flex-direction:column;gap:10px}
    .float-btn{width:48px;height:48px;border-radius:999px;background:linear-gradient(135deg,var(--primary),#ff8f3b);color:#fff;display:grid;place-items:center;box-shadow:0 14px 30px rgba(255,77,94,.28)}
    .mobile-panel{display:none}
    .sr{position:absolute;left:-9999px}
    .grid-media{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .grid-media img{border-radius:18px;border:1px solid var(--line);box-shadow:var(--shadow)}
    .hidden-img{display:none}
    @media (max-width: 980px){
      .hero-grid,.split,.grid-3,.grid-4,.review-grid,.article-list,.footer-grid,.grid-media{grid-template-columns:1fr}
      nav{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-panel{display:none;padding:0 0 14px}
      .mobile-panel.open{display:block}
      .mobile-panel a{display:block;padding:10px 0;color:#243041;border-top:1px solid rgba(230,223,212,.7)}
      .section-head{align-items:start;flex-direction:column}
      .form-grid{grid-template-columns:1fr}
    }