:root{
      --bg:#fff9e9;
      --bg2:#fffef8;
      --panel:#ffffff;
      --text:#232a33;
      --muted:#5e6875;
      --line:#eadfbb;
      --brand:#ffbf1a;
      --brand2:#ff8f1f;
      --brand3:#ffe36a;
      --shadow:0 18px 50px rgba(104,74,0,.10);
      --radius:22px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:radial-gradient(circle at top left,rgba(255,191,26,.18),transparent 30%),linear-gradient(180deg,var(--bg) 0%,#fffdf6 34%,#fff 100%);color:var(--text);line-height:1.7}
    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:50;background:rgba(255,252,245,.84);backdrop-filter:blur(16px);border-bottom:1px solid rgba(234,223,187,.8)}
    .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);box-shadow:0 8px 18px rgba(0,0,0,.06)}
    .brand-text{min-width:0}
    .brand-text strong{display:block;font-size:18px;line-height:1.2}
    .brand-text span{display:block;font-size:12px;color:var(--muted)}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#374150;padding:8px 0;position:relative}
    .nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:linear-gradient(90deg,var(--brand),var(--brand2));transform:scaleX(0);transform-origin:right;transition:transform .25s ease}
    .nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);transform-origin:left}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:999px;padding:12px 18px;font-weight:700;transition:.25s ease;cursor:pointer;white-space:nowrap}
    .btn-primary{background:linear-gradient(135deg,var(--brand) 0%,var(--brand2) 100%);color:#2c2100;box-shadow:0 12px 28px rgba(255,165,0,.25)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(255,165,0,.32)}
    .btn-ghost{background:#fff;color:var(--text);border-color:var(--line)}
    .btn-ghost:hover{border-color:#d8c88e;transform:translateY(-2px)}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px}
    .hero{padding:34px 0 22px}
    .hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:stretch}
    .hero-main,.hero-side,.card,.section-card,.faq-item,.review,.case-card,.info-card,.step,.compare-box,.form-card,.article-card,.metric,.price-card,.network-card,.timeline-item{background:var(--panel);border:1px solid rgba(234,223,187,.95);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-main{padding:34px;position:relative;overflow:hidden}
    .hero-main::before{content:"";position:absolute;inset:auto -20% -35% auto;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(255,191,26,.28),transparent 65%)}
    .hero-main::after{content:"";position:absolute;right:28px;top:28px;width:88px;height:88px;border-radius:24px;background:linear-gradient(135deg,rgba(255,191,26,.24),rgba(255,143,31,.12));transform:rotate(12deg)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:rgba(255,191,26,.16);color:#8c5c00;font-weight:700;font-size:13px}
    h1{margin:16px 0 12px;font-size:clamp(32px,5vw,56px);line-height:1.08;letter-spacing:-.03em}
    .hero-desc{max-width:58ch;color:var(--muted);font-size:16px;margin:0 0 20px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0 26px}
    .hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
    .mini{padding:14px 14px 16px;border-radius:18px;background:linear-gradient(180deg,#fffef8,#fff8df);border:1px solid #f1e1a7}
    .mini strong{display:block;font-size:18px;margin-bottom:4px}
    .mini span{display:block;font-size:13px;color:var(--muted)}
    .hero-side{padding:22px;display:grid;gap:14px;align-content:start}
    .side-box{padding:18px;border-radius:18px;background:linear-gradient(180deg,#fffdf7,#fff6d1);border:1px solid #f0ddb1}
    .side-box h3{margin:0 0 8px;font-size:18px}
    .side-box p,.side-box li{margin:0;color:var(--muted);font-size:14px}
    .side-box ul{margin:10px 0 0;padding-left:18px}
    .metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:18px}
    .metric{padding:18px}
    .metric b{display:block;font-size:26px;line-height:1.1}
    .metric span{color:var(--muted);font-size:13px}
    section{padding:18px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:14px}
    .section-head h2{margin:0;font-size:28px;line-height:1.15}
    .section-head p{margin:0;color:var(--muted);max-width:62ch}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .card{padding:20px}
    .card h3{margin:0 0 10px;font-size:18px}
    .card p,.card li{color:var(--muted);margin:0}
    .card ul{margin:10px 0 0;padding-left:18px}
    .chip-row{display:flex;flex-wrap:wrap;gap:10px}
    .chip{padding:8px 12px;border-radius:999px;background:#fff8db;border:1px solid #efdd9c;color:#7d5a00;font-size:13px}
    .stack{display:grid;gap:14px}
    .steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .step{padding:20px;position:relative}
    .step .num{display:inline-flex;width:34px;height:34px;border-radius:50%;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#2f2200;font-weight:800;margin-bottom:10px}
    .table-wrap{overflow:auto;border-radius:22px;border:1px solid rgba(234,223,187,.95);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:16px 14px;border-bottom:1px solid #f0e6c7;text-align:left;vertical-align:top}
    th{background:#fff8dd;color:#4a3900;font-size:14px}
    td{color:#44505d;font-size:14px}
    .check{color:#0a7a31;font-weight:700}
    .rating{display:grid;grid-template-columns:1fr .9fr;gap:14px}
    .review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .review{padding:20px}
    .review .role{font-size:13px;color:#8a6310;font-weight:700}
    .review p{margin:10px 0 0;color:var(--muted)}
    .faq{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{width:100%;padding:18px 20px;background:#fff;border:0;color:var(--text);font-size:16px;font-weight:700;text-align:left;display:flex;justify-content:space-between;align-items:center;gap:12px;cursor:pointer}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 20px}
    .faq-item.open .faq-a{max-height:180px;padding-bottom:18px}
    .faq-a p{margin:0;color:var(--muted)}
    .faq-icon{transition:transform .25s ease}
    .faq-item.open .faq-icon{transform:rotate(45deg)}
    .case-card,.article-card,.info-card,.price-card,.network-card,.timeline-item,.compare-box{padding:18px}
    .article-list,.timeline{display:grid;gap:12px}
    .article-card h3,.info-card h3,.network-card h3,.price-card h3{margin:0 0 8px;font-size:17px}
    .article-card p,.info-card p,.network-card p,.price-card p,.timeline-item p{margin:0;color:var(--muted)}
    .timeline-item{display:flex;gap:14px;align-items:flex-start}
    .timeline-item .dot{width:12px;height:12px;border-radius:50%;background:var(--brand);margin-top:8px;flex:none;box-shadow:0 0 0 6px rgba(255,191,26,.18)}
    .form-card{padding:22px}
    form{display:grid;gap:14px}
    .form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    label{display:grid;gap:8px;font-size:14px;font-weight:700;color:#3a4450}
    input,select,textarea{width:100%;border:1px solid #decf95;border-radius:14px;padding:13px 14px;font:inherit;background:#fff;color:var(--text);outline:none}
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#f0b223;box-shadow:0 0 0 4px rgba(255,191,26,.15)}
    .footer{margin-top:16px;background:#1f232b;color:#f4f6f8;padding:28px 0 22px}
    .footer a{color:#fff2af}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
    .footer small,.footer p{color:#cfd5dd}
    .footer .chip{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.12);color:#fff}
    .float-tools{position:fixed;right:16px;bottom:18px;z-index:60;display:grid;gap:10px}
    .float-tools a,.float-tools button{width:48px;height:48px;border-radius:16px;border:0;display:grid;place-items:center;box-shadow:var(--shadow);background:linear-gradient(135deg,var(--brand),var(--brand2));color:#2b2000;font-weight:800}
    .float-tools button{background:#fff;border:1px solid var(--line)}
    .reveal{opacity:0;transform:translateY(16px);transition:.65s ease}
    .reveal.in{opacity:1;transform:none}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud a{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid #eadfbb;color:#42505f;font-size:13px}
    .mobile-only{display:none}
    @media (max-width: 960px){
      .hero-grid,.rating,.footer-grid,.grid-3,.grid-2,.review-grid,.steps,.metrics{grid-template-columns:1fr 1fr}
      .hero-points{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-only{display:block}
      .desktop-only{display:none}
    }
    @media (max-width: 720px){
      .container{width:min(var(--container),calc(100% - 24px))}
      .nav{padding:12px 0}
      .hero-main{padding:22px}
      .hero-side{padding:18px}
      .grid-3,.grid-2,.review-grid,.steps,.metrics,.footer-grid,.hero-grid,.rating,.form-grid{grid-template-columns:1fr}
      .section-head{align-items:flex-start;flex-direction:column}
      h1{font-size:32px}
      .section-head h2{font-size:24px}
      .nav-actions .btn-ghost{display:none}
    }
    .mobile-menu{display:none;padding:0 0 14px}
    .mobile-menu.open{display:block}
    .mobile-menu a{display:block;padding:12px 0;border-top:1px solid #f0e3bd;color:#3e4956}