:root{
      --bg:#fbf7f4;
      --panel:#ffffff;
      --panel-2:#fff4ef;
      --text:#2b2320;
      --muted:#6b5d58;
      --line:#eaded8;
      --brand:#d81f26;
      --brand-2:#ff5a2a;
      --brand-3:#ffb58d;
      --shadow:0 18px 50px rgba(119,46,29,.12);
      --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(216,31,38,.14), transparent 24%),
        radial-gradient(circle at top right, rgba(255,90,42,.10), transparent 20%),
        linear-gradient(180deg,#fffdfb 0%,var(--bg) 44%,#fff 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .topbar{
      position:sticky; top:0; z-index:40;
      backdrop-filter:blur(14px);
      background:rgba(255,248,244,.86);
      border-bottom:1px solid rgba(234,222,216,.9);
    }
    header .bar{
      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:44px; height:44px; border-radius:14px; background:linear-gradient(135deg,var(--brand),var(--brand-2));
      box-shadow:0 12px 24px rgba(216,31,38,.24); display:grid; place-items:center; color:#fff; font-weight:800;
      flex:0 0 auto;
    }
    .brand .text{min-width:0}
    .brand h1{margin:0; font-size:16px; line-height:1.2}
    .brand p{margin:4px 0 0; color:var(--muted); font-size:12px}
    nav{display:flex; align-items:center; gap:14px}
    .nav-links{display:flex; align-items:center; gap:14px; flex-wrap:wrap; justify-content:flex-end}
    .nav-links a{font-size:14px; color:var(--muted); padding:8px 10px; border-radius:999px}
    .nav-links a:hover,.nav-links a.active{background:#fff; color:var(--text); box-shadow:0 8px 18px rgba(41,18,12,.06)}
    .nav-toggle{
      display:none; border:1px solid var(--line); background:#fff; color:var(--text);
      border-radius:12px; width:44px; height:44px; font-size:18px;
    }
    .hero{padding:34px 0 22px}
    .hero-grid{display:grid; grid-template-columns:1.15fr .85fr; gap:22px; align-items:stretch}
    .hero-main{
      position:relative; overflow:hidden;
      padding:34px; border-radius:28px; background:
        linear-gradient(135deg, rgba(216,31,38,.98), rgba(255,90,42,.96));
      color:#fff; box-shadow:0 22px 60px rgba(177,29,34,.22);
    }
    .hero-main::after{
      content:""; position:absolute; inset:auto -8% -30% auto; width:260px; height:260px; border-radius:50%;
      background:radial-gradient(circle, rgba(255,255,255,.22), transparent 62%);
      pointer-events:none;
    }
    .eyebrow{display:inline-flex; align-items:center; gap:8px; padding:8px 14px; border-radius:999px; background:rgba(255,255,255,.14); font-size:13px}
    .hero h2{margin:16px 0 14px; font-size:clamp(30px,5vw,54px); line-height:1.04; letter-spacing:-.02em}
    .hero p{margin:0; max-width:58ch; font-size:16px; line-height:1.8; color:rgba(255,255,255,.92)}
    .hero-actions{display:flex; flex-wrap:wrap; gap:12px; margin-top:22px}
    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:8px; border:1px solid transparent;
      padding:13px 18px; border-radius:14px; font-weight:700; transition:.25s ease; cursor:pointer;
    }
    .btn.primary{background:#fff; color:#b7171d; box-shadow:0 10px 24px rgba(0,0,0,.12)}
    .btn.primary:hover{transform:translateY(-2px)}
    .btn.ghost{background:rgba(255,255,255,.1); color:#fff; border-color:rgba(255,255,255,.22)}
    .btn.ghost:hover{background:rgba(255,255,255,.16); transform:translateY(-2px)}
    .hero-aside{
      display:grid; gap:14px;
    }
    .glass{
      background:rgba(255,255,255,.72); border:1px solid rgba(234,222,216,.9); box-shadow:var(--shadow);
      border-radius:24px; padding:22px;
    }
    .mini-grid{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:12px}
    .stat{
      background:linear-gradient(180deg,#fff,#fff8f5); border:1px solid var(--line); border-radius:18px; padding:16px;
    }
    .stat strong{display:block; font-size:22px; color:var(--brand); line-height:1.1}
    .stat span{display:block; margin-top:6px; font-size:13px; color:var(--muted)}
    section{padding:24px 0}
    .section-head{display:flex; justify-content:space-between; gap:16px; align-items:end; margin-bottom:16px}
    .section-head h3{margin:0; font-size:26px}
    .section-head p{margin:0; color:var(--muted); line-height:1.7}
    .panel{
      background:var(--panel); border:1px solid var(--line); border-radius:24px; box-shadow:0 14px 40px rgba(74,35,24,.06);
      padding:24px;
    }
    .grid-3{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px}
    .grid-2{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px}
    .card{
      background:linear-gradient(180deg,#fff,#fffaf8); border:1px solid var(--line); border-radius:22px; padding:20px;
      transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }
    .card:hover{transform:translateY(-4px); box-shadow:0 16px 34px rgba(82,37,24,.10); border-color:#f1c7ba}
    .card h4{margin:0 0 10px; font-size:18px}
    .card p,.card li{color:var(--muted); line-height:1.75}
    .badge-row{display:flex; flex-wrap:wrap; gap:10px; margin-top:14px}
    .badge{padding:8px 12px; border-radius:999px; background:var(--panel-2); color:#a73a18; border:1px solid #ffd7c8; font-size:13px}
    .list{margin:0; padding-left:18px}
    .flow{display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:14px}
    .step{
      position:relative; padding:18px; border-radius:20px; background:#fff; border:1px solid var(--line);
    }
    .step .num{font-weight:800; color:#fff; background:linear-gradient(135deg,var(--brand),var(--brand-2)); width:34px; height:34px; border-radius:12px; display:grid; place-items:center; margin-bottom:12px}
    .table-wrap{overflow-x:auto; border-radius:18px; border:1px solid var(--line); background:#fff}
    table{width:100%; border-collapse:collapse; min-width:760px}
    th,td{padding:16px 14px; border-bottom:1px solid var(--line); text-align:left; vertical-align:top}
    th{background:#fff6f1; color:#8a2a14}
    tr:last-child td{border-bottom:none}
    .muted{color:var(--muted)}
    .qa details{
      background:#fff; border:1px solid var(--line); border-radius:18px; padding:0 18px; overflow:hidden
    }
    .qa details+details{margin-top:12px}
    .qa summary{cursor:pointer; list-style:none; padding:18px 0; font-weight:700}
    .qa summary::-webkit-details-marker{display:none}
    .qa .answer{padding:0 0 18px; color:var(--muted); line-height:1.8}
    .quote-grid{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px}
    .quote{
      background:#fff; border:1px solid var(--line); border-radius:22px; padding:18px;
    }
    .quote .who{display:flex; align-items:center; justify-content:space-between; gap:10px; margin-bottom:10px}
    .quote strong{font-size:15px}
    .quote span{font-size:12px; color:var(--muted)}
    .tag-cloud{display:flex; flex-wrap:wrap; gap:10px}
    .tag-cloud a{padding:9px 12px; border:1px solid var(--line); border-radius:999px; background:#fff; color:#5f514d; font-size:13px}
    .articles{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px}
    .article{
      padding:18px; background:linear-gradient(180deg,#fff,#fffaf9); border:1px solid var(--line); border-radius:20px;
    }
    .article time{display:block; color:var(--brand); font-size:12px; margin-bottom:10px}
    .article h4{margin:0 0 10px}
    .form-grid{display:grid; grid-template-columns:1fr 1fr; gap:14px}
    .field{display:flex; flex-direction:column; gap:8px}
    label{font-weight:700; font-size:14px}
    input,select,textarea{
      width:100%; border:1px solid #e7d7d0; background:#fff; border-radius:14px; padding:13px 14px; color:var(--text);
      font:inherit; outline:none; transition:border-color .2s ease, box-shadow .2s ease;
    }
    textarea{min-height:120px; resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#ff8f6b; box-shadow:0 0 0 4px rgba(255,90,42,.12)}
    .full{grid-column:1 / -1}
    .submit-row{display:flex; align-items:center; gap:12px; flex-wrap:wrap; margin-top:6px}
    .price-strip{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:14px}
    .price{
      padding:18px; border-radius:20px; border:1px solid var(--line); background:#fff;
    }
    .price strong{font-size:28px; color:var(--brand)}
    footer{
      padding:24px 0 28px;
      background:linear-gradient(180deg,#fff7f3,#fff);
      border-top:1px solid var(--line);
      color:var(--text);
    }
    footer a{color:#8a2a14}
    .footer-grid{display:grid; grid-template-columns:1.05fr .95fr .9fr; gap:18px}
    .small{font-size:13px; color:var(--muted); line-height:1.8}
    .foot-links{display:flex; flex-wrap:wrap; gap:10px}
    .foot-links a{padding:8px 10px; border-radius:999px; background:#fff; border:1px solid var(--line)}
    .fixed-contact{
      position:fixed; right:16px; bottom:16px; z-index:50; display:flex; flex-direction:column; gap:10px;
    }
    .fixed-contact a,.to-top{
      width:48px; height:48px; border-radius:16px; display:grid; place-items:center; border:none; cursor:pointer;
      box-shadow:0 12px 26px rgba(0,0,0,.14);
    }
    .fixed-contact a{background:linear-gradient(135deg,var(--brand),var(--brand-2)); color:#fff}
    .to-top{background:#fff; color:var(--brand); border:1px solid var(--line)}
    .mobile-menu{display:none}
    .reveal{opacity:0; transform:translateY(14px); transition:.5s ease}
    .reveal.in{opacity:1; transform:none}
    .hero-mini{
      display:grid; gap:12px;
    }
    .hero-mini .chipline{display:flex; flex-wrap:wrap; gap:10px}
    .chip{padding:8px 10px; border-radius:999px; background:rgba(255,255,255,.14); border:1px solid rgba(255,255,255,.18); font-size:12px}
    .comparison-note{padding:16px; border-radius:18px; background:#fff6f1; border:1px solid #ffd8c8; color:#8a2a14; margin-top:14px}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-2,.flow,.quote-grid,.articles,.footer-grid,.price-strip{grid-template-columns:1fr}
      .hero-main{padding:26px}
      nav{display:none}
      .nav-toggle{display:inline-grid; place-items:center}
      .mobile-menu{display:none; padding:0 0 16px}
      .mobile-menu.open{display:block}
      .mobile-menu .nav-links{justify-content:flex-start; padding:10px 0 0}
      .form-grid{grid-template-columns:1fr}
      .section-head{flex-direction:column; align-items:flex-start}
      .mini-grid{grid-template-columns:1fr 1fr}
    }