:root{
      --bg:#fff8f4;
      --surface:#ffffff;
      --surface-2:#fff1ec;
      --line:#f0d6cf;
      --text:#231f20;
      --muted:#6c5a57;
      --brand:#b31417;
      --brand-2:#e6472f;
      --brand-3:#ffb38d;
      --shadow:0 14px 40px rgba(179,20,23,.10);
      --shadow-2:0 10px 24px rgba(48,26,23,.10);
      --radius:20px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:linear-gradient(180deg,#fff8f4 0%,#fffdfc 30%,#fff7f4 100%);color:var(--text);line-height:1.7}
    a{color:var(--brand);text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
    header{position:sticky;top:0;z-index:30;background:rgba(255,248,244,.88);backdrop-filter:blur(12px);border-bottom:1px solid rgba(240,214,207,.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;box-shadow:var(--shadow-2);padding:4px}
    .brand strong{display:block;font-size:1.05rem;line-height:1.2}
    .brand span{display:block;font-size:.84rem;color:var(--muted)}
    .nav-links{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:flex-end}
    .nav-links a,.nav-btn{padding:10px 14px;border-radius:999px;border:1px solid transparent;font-size:.95rem;transition:.25s ease}
    .nav-links a:hover,.nav-btn:hover{background:#fff;border-color:var(--line);box-shadow:var(--shadow-2);transform:translateY(-1px)}
    .nav-btn{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 10px 20px rgba(179,20,23,.22)}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)}
    main{padding-bottom:18px}
    section{padding:34px 0}
    .hero{padding:30px 0 24px;position:relative;overflow:hidden}
    .hero:before,.hero:after{content:"";position:absolute;border-radius:50%;background:radial-gradient(circle,rgba(230,71,47,.15),rgba(230,71,47,0) 68%);pointer-events:none}
    .hero:before{width:360px;height:360px;top:-120px;right:-80px}
    .hero:after{width:220px;height:220px;left:-80px;bottom:20px;background:radial-gradient(circle,rgba(179,20,23,.12),rgba(179,20,23,0) 68%)}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
    .hero-copy,.panel,.card,.stat,.faq-item,.review,.article,.compare,.form-wrap,.timeline li,.price-box,.tag-cloud,.network{background:linear-gradient(180deg,rgba(255,255,255,.96),rgba(255,248,244,.94));border:1px solid rgba(240,214,207,.9);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-copy{padding:30px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:rgba(179,20,23,.08);color:var(--brand);font-weight:700;font-size:.9rem}
    h1{margin:16px 0 14px;font-size:clamp(2rem,5vw,3.6rem);line-height:1.08;letter-spacing:-.02em}
    .lead{font-size:1.05rem;color:var(--muted);max-width:58ch;margin:0 0 20px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 18px;border-radius:14px;border:1px solid transparent;font-weight:700;transition:.25s ease;cursor:pointer}
    .btn.primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 14px 28px rgba(179,20,23,.22)}
    .btn.secondary{background:#fff;border-color:var(--line);color:var(--text)}
    .btn:hover{transform:translateY(-2px)}
    .hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
    .chip{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--muted);font-size:.92rem}
    .hero-side{display:grid;gap:16px}
    .mini-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .stat{padding:18px}
    .stat strong{display:block;font-size:1.4rem;color:var(--brand)}
    .stat span{display:block;color:var(--muted);font-size:.92rem}
    .panel{padding:20px}
    .panel h2,.section-title h2{margin:0 0 10px;font-size:1.65rem}
    .section-title{margin-bottom:18px}
    .section-title p{margin:0;color:var(--muted)}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .card,.article,.review,.faq-item,.compare,.form-wrap,.price-box,.network,.tag-cloud,.timeline li{padding:20px}
    .card h3,.article h3,.review h3,.price-box h3{margin:10px 0 8px;font-size:1.08rem}
    .card p,.article p,.review p,.compare p,.price-box p,.network p{margin:0;color:var(--muted)}
    .icon{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(179,20,23,.12),rgba(230,71,47,.12));color:var(--brand);font-weight:800}
    .feature-list,.bullet-list{margin:14px 0 0;padding:0;list-style:none;display:grid;gap:10px}
    .feature-list li,.bullet-list li{padding-left:18px;position:relative;color:var(--muted)}
    .feature-list li:before,.bullet-list li:before{content:"";position:absolute;left:0;top:.75em;width:8px;height:8px;border-radius:50%;background:var(--brand)}
    .steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;counter-reset:step}
    .step{padding:20px;background:linear-gradient(180deg,#fff,#fff7f4);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-2)}
    .step:before{counter-increment:step;content:"0" counter(step);display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:14px;background:var(--brand);color:#fff;font-weight:800;margin-bottom:12px}
    table{width:100%;border-collapse:collapse}
    th,td{padding:14px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    th{color:var(--text);background:#fff7f4}
    .table-wrap{overflow:auto;border:1px solid var(--line);border-radius:18px;background:#fff}
    .rating{display:flex;align-items:center;gap:8px;font-weight:800;color:var(--brand)}
    .stars{letter-spacing:2px}
    details{border-top:1px solid var(--line);padding-top:12px;margin-top:12px}
    details summary{cursor:pointer;font-weight:700;list-style:none}
    details summary::-webkit-details-marker{display:none}
    details p{margin:10px 0 0;color:var(--muted)}
    .review-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}
    .avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;display:grid;place-items:center;font-weight:800}
    .review-top{display:flex;align-items:center;gap:12px}
    .article time{color:var(--brand);font-weight:700;font-size:.92rem}
    .form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    label{display:block;font-size:.92rem;font-weight:700;margin-bottom:8px}
    input,select,textarea{width:100%;border:1px solid var(--line);border-radius:14px;padding:12px 14px;font:inherit;background:#fff;color:var(--text);outline:none}
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:rgba(179,20,23,.55);box-shadow:0 0 0 4px rgba(179,20,23,.08)}
    .full{grid-column:1/-1}
    .footer{padding:24px 0 30px;border-top:1px solid rgba(240,214,207,.85);background:#fff7f4}
    .footer a,.footer p,.footer li{color:#4d3f3d}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}
    .footer small{color:#6f5d59}
    .floating{position:fixed;right:16px;bottom:16px;z-index:40;display:grid;gap:10px}
    .float-btn{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 14px 28px rgba(179,20,23,.24)}
    .backtop{opacity:0;pointer-events:none;transform:translateY(10px);transition:.25s ease}
    .backtop.show{opacity:1;pointer-events:auto;transform:translateY(0)}
    .mobile-only{display:none}
    .scroll-reveal{opacity:0;transform:translateY(18px);transition:.65s ease}
    .scroll-reveal.visible{opacity:1;transform:translateY(0)}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--muted)}
    .timeline{list-style:none;margin:0;padding:0;display:grid;gap:12px}
    .timeline li{display:flex;gap:12px;align-items:flex-start}
    .timeline b{color:var(--brand);min-width:58px}
    .service-network{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .kefu{display:grid;gap:14px;justify-items:start}
    .kefu img{width:168px;border-radius:18px;border:1px solid var(--line);background:#fff;padding:8px}
    .image-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .image-row img{border-radius:18px;border:1px solid var(--line);background:#fff;object-fit:cover}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-4,.steps,.footer-grid,.service-network,.image-row{grid-template-columns:1fr 1fr}
      .hero-grid{grid-template-columns:1fr}
    }
    @media (max-width: 720px){
      .nav-links{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-only{display:block}
      .hero-copy,.panel,.card,.article,.review,.faq-item,.compare,.form-wrap,.price-box,.network,.tag-cloud,.timeline li{padding:18px}
      .mini-grid,.grid-3,.grid-4,.steps,.footer-grid,.service-network,.image-row,.form-grid{grid-template-columns:1fr}
      h1{font-size:2rem}
      section{padding:28px 0}
      .floating{right:12px;bottom:12px}
      .mobile-menu{display:none;padding:0 0 12px}
      .mobile-menu.open{display:grid;gap:10px}
      .mobile-menu a,.mobile-menu .nav-btn{padding:12px 14px;border-radius:14px;background:#fff;border:1px solid var(--line)}
    }