:root{
      --bg:#fff8f1;
      --panel:#ffffff;
      --panel-2:#fff2e6;
      --line:#f0d8c7;
      --text:#222327;
      --muted:#6c6a66;
      --brand:#ff6a00;
      --brand-2:#ff8a1e;
      --brand-3:#ffb15a;
      --shadow:0 18px 50px rgba(255,106,0,.12);
      --shadow-2:0 10px 30px rgba(34,35,39,.08);
      --radius:22px;
      --max:1200px;
    }
    *{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:radial-gradient(circle at top left, #fff2e6 0, #fff8f1 24%, #fff 62%);color:var(--text)}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max),calc(100% - 32px));margin:0 auto}
    .topbar{position:sticky;top:0;z-index:50;background:rgba(255,248,241,.9);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid rgba(240,216,199,.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:42px;height:42px;object-fit:contain;border-radius:12px;background:#fff;border:1px solid var(--line);padding:4px;box-shadow:var(--shadow-2)}
    .brand strong{display:block;font-size:1rem;line-height:1.1}
    .brand span{display:block;font-size:.82rem;color:var(--muted);margin-top:2px}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:14px;padding:10px 12px;color:var(--text)}
    .nav-links{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:.94rem;color:#393733;padding:8px 10px;border-radius:999px;transition:.25s ease}
    .nav-links a:hover{background:var(--panel-2);color:#000}
    .nav-cta{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,var(--brand),#ff8c22);color:#fff !important;padding:10px 14px !important;box-shadow:0 12px 24px rgba(255,106,0,.18)}
    .hero{position:relative;padding:32px 0 22px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:20px;align-items:stretch}
    .hero-main,.hero-side,.section-card,.info-card,.review-card,.faq-item,.article-item,.price-card,.timeline-item,.compare-table,.form-card,.network-card{background:rgba(255,255,255,.88);border:1px solid rgba(240,216,199,.9);box-shadow:var(--shadow-2);border-radius:var(--radius)}
    .hero-main{padding:28px;overflow:hidden;position:relative}
    .hero-main:before{content:"";position:absolute;inset:auto -80px -90px auto;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle, rgba(255,106,0,.22), rgba(255,106,0,0) 68%);pointer-events:none}
    .kicker{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#fff4e8;border:1px solid #ffd8b3;color:#a94f00;font-size:.88rem}
    h1{margin:16px 0 14px;font-size:clamp(2rem,5vw,3.8rem);line-height:1.08;letter-spacing:-.03em}
    .lead{font-size:1.05rem;line-height:1.8;color:var(--muted);max-width:62ch}
    .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-radius:14px;padding:12px 16px;border:1px solid transparent;font-weight:700;transition:transform .22s ease,box-shadow .22s ease,background .22s ease}
    .btn-primary{background:linear-gradient(135deg,var(--brand),#ff8b1e);color:#fff;box-shadow:0 14px 26px rgba(255,106,0,.22)}
    .btn-secondary{background:#fff;border-color:var(--line);color:#2f2d29}
    .btn:hover,.nav-links a:hover{transform:translateY(-1px)}
    .hero-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
    .metric{padding:16px;border-radius:18px;background:linear-gradient(180deg,#fff, #fff6ee);border:1px solid #ffe1c6}
    .metric b{display:block;font-size:1.3rem;color:#171717}
    .metric span{display:block;color:var(--muted);font-size:.9rem;margin-top:4px;line-height:1.5}
    .hero-side{padding:20px}
    .side-stack{display:grid;gap:12px}
    .mini-card{padding:16px;border-radius:18px;background:linear-gradient(180deg,#fff8f1,#fff);border:1px solid #f3dcc9}
    .mini-card h3{margin:0 0 8px;font-size:1rem}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span,.chip{display:inline-flex;align-items:center;padding:8px 11px;border-radius:999px;background:#fff5ea;border:1px solid #ffd9b4;color:#7d3b00;font-size:.88rem}
    .section{padding:18px 0 4px}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:clamp(1.5rem,3vw,2.2rem)}
    .section-head p{margin:0;color:var(--muted);line-height:1.7;max-width:62ch}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .info-card,.service-card,.review-card,.article-item,.faq-item,.price-card,.timeline-item,.form-card,.network-card{padding:20px}
    .info-card h3,.service-card h3,.review-card h3,.article-item h3,.price-card h3{margin:0 0 10px;font-size:1.06rem}
    .info-card p,.service-card p,.review-card p,.article-item p,.price-card p,.network-card p{margin:0;color:var(--muted);line-height:1.75}
    .service-card{background:linear-gradient(180deg,#fff, #fff6ef)}
    .service-card .icon{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:#fff1e1;color:#b94a00;margin-bottom:12px;font-size:1.2rem}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:18px;border-radius:18px;background:#fff;border:1px solid #f1dac7;position:relative}
    .step:after{content:"";position:absolute;inset:auto 16px 16px auto;width:38px;height:38px;border-radius:50%;background:radial-gradient(circle,#ffb36c,rgba(255,179,108,0) 70%)}
    .step strong{display:block;font-size:1.1rem;margin-bottom:8px}
    .step span{color:var(--muted);line-height:1.7;font-size:.95rem}
    .table-wrap{overflow-x:auto}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{border-bottom:1px solid #f1e0d4;padding:14px 12px;text-align:left;vertical-align:top}
    th{background:#fff6ee;color:#301a00}
    .score{font-weight:800;color:#d14f00}
    .faq-list{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 20px;border:0;background:transparent;color:var(--text);font-size:1rem;font-weight:700;text-align:left}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 20px}
    .faq-item.active .faq-a{padding-bottom:18px}
    .faq-item.active .faq-a{max-height:180px}
    .faq-a p{margin:0;color:var(--muted);line-height:1.75}
    .chev{transition:transform .25s ease}
    .faq-item.active .chev{transform:rotate(180deg)}
    .reviews,.articles,.timeline,.price-grid,.network-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review-card .role{display:inline-flex;margin-bottom:10px;color:#a04b00;background:#fff3e6;border:1px solid #ffd6b0;padding:6px 10px;border-radius:999px;font-size:.84rem}
    .article-item time{display:block;color:#a55a18;font-size:.86rem;margin-bottom:8px}
    .article-item a{display:inline-flex;margin-top:12px;color:#b74f00;font-weight:700}
    .form-card form{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .field{display:grid;gap:8px}
    .field.full{grid-column:1/-1}
    label{font-size:.92rem;color:#332f2a;font-weight:700}
    input,select,textarea{width:100%;padding:13px 14px;border:1px solid #e7cfbc;border-radius:14px;background:#fff;color:var(--text);outline:none;font:inherit}
    textarea{min-height:126px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#ff9a3d;box-shadow:0 0 0 4px rgba(255,154,61,.14)}
    .footer{margin-top:18px;padding:24px 0 30px;background:#fff4ea;border-top:1px solid #efd7c3;color:#2c2824}
    .footer a{color:#8e4300}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;align-items:start}
    .footer small,.footer p{color:#645a52;line-height:1.7}
    .float-tools{position:fixed;right:16px;bottom:16px;display:grid;gap:10px;z-index:60}
    .float-tools a,.float-tools button{width:48px;height:48px;border-radius:16px;border:1px solid #f1d6c1;background:#fff;box-shadow:var(--shadow-2);display:grid;place-items:center;color:#c15200;cursor:pointer}
    .backtop{display:none}
    .reveal{opacity:0;transform:translateY(14px);transition:opacity .55s ease,transform .55s ease}
    .reveal.in{opacity:1;transform:none}
    .section-card{padding:22px}
    .media-row{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .media-row img{width:100%;border-radius:18px;border:1px solid #f0dbc9;box-shadow:var(--shadow-2)}
    .label-row{display:flex;flex-wrap:wrap;gap:10px}
    .timeline-item{position:relative}
    .timeline-item:before{content:"";position:absolute;left:20px;top:20px;width:10px;height:10px;border-radius:50%;background:#ff7a11;box-shadow:0 0 0 5px rgba(255,122,17,.12)}
    .timeline-item h3{padding-left:20px}
    .timeline-item p{padding-left:20px}
    .network-card strong{display:block;margin-bottom:8px}
    .compare-note{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
    .sitemap{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
    .sitemap a{padding:10px 12px;border-radius:12px;background:#fff;border:1px solid #f1dac7;color:#4a423a;text-align:center}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-2,.reviews,.articles,.timeline,.price-grid,.network-grid,.footer-grid,.media-row,.steps,.sitemap{grid-template-columns:1fr}
      .form-card form{grid-template-columns:1fr}
      .nav-toggle{display:inline-flex}
      .nav-links{display:none;width:100%;padding:10px 0 0}
      .nav-links.open{display:flex;flex-direction:column;align-items:flex-start;gap:6px}
      .nav{flex-wrap:wrap}
      .hero-meta{grid-template-columns:1fr}
      table{min-width:920px}
    }