:root{
      --bg:#f7f8fc;
      --panel:#ffffff;
      --panel-2:#fff7ef;
      --text:#18212f;
      --muted:#5f6b7a;
      --line:#e7eaf0;
      --brand:#ff5a3c;
      --brand-2:#2563eb;
      --accent:#ffb000;
      --shadow:0 14px 40px rgba(26,41,74,.10);
      --radius:20px;
      --radius-sm:14px;
      --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;color:var(--text);background:
      radial-gradient(circle at top left, rgba(255,90,60,.14), transparent 28%),
      radial-gradient(circle at top right, rgba(37,99,235,.12), transparent 24%),
      linear-gradient(180deg,#fbfcff 0%,#f6f8fd 100%);}
    img{max-width:100%;display:block}
    a{text-decoration:none;color:inherit}
    .container{width:min(100% - 32px,var(--container));margin:0 auto}
    header{position:sticky;top:0;z-index:50;background:rgba(247,248,252,.88);backdrop-filter:blur(12px);border-bottom:1px solid rgba(231,234,240,.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;border-radius:12px;background:#fff;padding:4px;box-shadow:0 6px 18px rgba(0,0,0,.08)}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:3px}
    .menu{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .menu a{font-size:14px;color:#2a3442;padding:8px 10px;border-radius:999px}
    .menu a:hover,.menu a:focus{background:rgba(255,90,60,.10);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;white-space:nowrap}
    .btn-primary{background:linear-gradient(135deg,var(--brand),#ff7b30);color:#fff;box-shadow:0 12px 26px rgba(255,90,60,.28)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(255,90,60,.32)}
    .btn-light{background:#fff;color:var(--text);border:1px solid var(--line)}
    .btn-light:hover{border-color:#ffc6b8;transform:translateY(-1px)}
    .toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px}
    main{display:block}
    section{padding:72px 0 0}
    .hero{padding:34px 0 30px}
    .hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:22px;align-items:stretch}
    .hero-card,.info-card,.card,.panel{background:linear-gradient(180deg,rgba(255,255,255,.96),#fff);border:1px solid rgba(231,234,240,.95);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-card{padding:34px;position:relative;overflow:hidden}
    .hero-card:before{content:"";position:absolute;inset:auto -80px -120px auto;width:260px;height:260px;background:radial-gradient(circle,rgba(255,90,60,.18),transparent 65%)}
    .hero-card:after{content:"";position:absolute;inset:20px auto auto -80px;width:160px;height:160px;background:radial-gradient(circle,rgba(37,99,235,.12),transparent 65%)}
    .badge{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:rgba(255,90,60,.10);color:var(--brand);font-weight:700;font-size:13px}
    h1{margin:16px 0 14px;font-size:clamp(32px,5vw,58px);line-height:1.05;letter-spacing:-.03em}
    .lead{font-size:17px;line-height:1.8;color:var(--muted);max-width:62ch}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
    .mini-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
    .mini-tags span{padding:8px 12px;border-radius:999px;background:#f4f7ff;border:1px solid #e4ebff;color:#32415c;font-size:13px}
    .hero-side{display:grid;gap:16px}
    .info-card{padding:22px}
    .info-card h3{margin:0 0 12px;font-size:18px}
    .metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .metric{padding:18px 16px;border-radius:18px;background:linear-gradient(180deg,#fff, #fff8f3);border:1px solid #f2e2d8}
    .metric strong{display:block;font-size:24px}
    .metric span{display:block;color:var(--muted);font-size:13px;margin-top:6px;line-height:1.5}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:22px}
    .section-head h2{margin:0;font-size:clamp(24px,3vw,36px)}
    .section-head p{margin:0;color:var(--muted);max-width:62ch;line-height:1.7}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .card{padding:22px}
    .card h3{margin:8px 0 10px;font-size:18px}
    .card p,.card li,.panel p{color:var(--muted);line-height:1.75}
    .icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(255,90,60,.16),rgba(37,99,235,.12));color:var(--brand);font-weight:800}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .step{padding:20px;border-radius:18px;background:#fff;border:1px solid var(--line);position:relative}
    .step b{display:inline-block;padding:6px 10px;border-radius:999px;background:#eef4ff;color:#2851c7;font-size:13px}
    .table-wrap{overflow-x:auto;background:#fff;border-radius:22px;border:1px solid var(--line);box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:16px 18px;border-bottom:1px solid var(--line);text-align:left;font-size:14px;vertical-align:top}
    th{background:#fafbfe;color:#243041}
    tr:last-child td{border-bottom:0}
    .highlight{background:linear-gradient(90deg,rgba(255,90,60,.10),rgba(37,99,235,.08))}
    .chips{display:flex;flex-wrap:wrap;gap:10px}
    .chips span{padding:9px 12px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:13px;color:#344155}
    .timeline{display:grid;gap:14px}
    .time-item{display:grid;grid-template-columns:120px 1fr;gap:16px;padding:18px;border:1px solid var(--line);border-radius:18px;background:#fff}
    .time-item strong{color:var(--brand)}
    .review{display:grid;gap:12px}
    .review-card{padding:20px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .stars{color:#f59e0b;letter-spacing:2px}
    .faq{display:grid;gap:12px}
    details{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px 18px;box-shadow:0 8px 24px rgba(20,30,50,.04)}
    summary{cursor:pointer;font-weight:700;list-style:none}
    summary::-webkit-details-marker{display:none}
    .form-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}
    form{display:grid;gap:14px}
    label{display:block;font-size:14px;font-weight:700;margin-bottom:6px}
    input,select,textarea{width:100%;padding:13px 14px;border-radius:14px;border:1px solid #dbe2ee;background:#fff;color:var(--text);font:inherit;outline:none}
    input:focus,select:focus,textarea:focus{border-color:#f09b7e;box-shadow:0 0 0 4px rgba(255,90,60,.08)}
    textarea{min-height:132px;resize:vertical}
    .aside-box{padding:22px;border-radius:22px;background:linear-gradient(180deg,#fff7f0,#fff);border:1px solid #f4dfd0}
    .footer{margin-top:70px;padding:28px 0 26px;background:#fff;border-top:1px solid var(--line);color:#273041}
    .footer a{color:#2348a5}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px;align-items:start}
    .footer small,.footer p,.footer li{color:#5d6978;line-height:1.7}
    .float-box{position:fixed;right:16px;bottom:16px;z-index:40;display:grid;gap:10px}
    .float-btn{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),#ff7b30);color:#fff;box-shadow:0 16px 34px rgba(255,90,60,.28)}
    .backtop{background:#fff;color:#22304a;border:1px solid var(--line)}
    .mobile-menu{display:none}
    .reveal{opacity:0;transform:translateY(14px);transition:.7s ease}
    .reveal.in{opacity:1;transform:none}
    .home-link{font-weight:700;color:var(--brand-2)}
    .article-list{display:grid;gap:12px}
    .article-item{display:flex;justify-content:space-between;gap:14px;padding:16px 18px;border-radius:16px;background:#fff;border:1px solid var(--line)}
    .article-item span{color:var(--muted)}
    @media (max-width: 980px){
      .hero-grid,.form-grid,.footer-grid,.grid-3,.grid-2,.steps,.metric-grid{grid-template-columns:1fr 1fr}
      .hero-card{padding:28px}
      .time-item{grid-template-columns:1fr}
    }
    @media (max-width: 720px){
      .menu,.nav-cta{display:none}
      .toggle{display:inline-flex}
      .mobile-menu{display:none;padding:0 0 16px}
      .mobile-menu.open{display:block}
      .mobile-menu a{display:block;padding:12px 0;border-top:1px solid var(--line);color:#273244}
      .hero-grid,.form-grid,.footer-grid,.grid-3,.grid-2,.steps,.metric-grid{grid-template-columns:1fr}
      section{padding:56px 0 0}
      .hero{padding-top:24px}
      .hero-card{padding:24px}
      .section-head{align-items:flex-start;flex-direction:column}
    }