:root{
      --bg:#f7f8fc;
      --panel:#ffffff;
      --panel-2:#f2f5ff;
      --text:#1e293b;
      --muted:#5b6475;
      --line:#e5e8f2;
      --brand:#4f46e5;
      --brand-2:#0f766e;
      --brand-3:#d946ef;
      --accent:#f59e0b;
      --shadow:0 18px 45px rgba(26, 34, 62, .08);
      --shadow-soft:0 10px 25px rgba(26, 34, 62, .06);
      --radius:22px;
      --radius-sm:14px;
      --max: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:
        radial-gradient(circle at 20% 0%, rgba(79,70,229,.10), transparent 26%),
        radial-gradient(circle at 80% 10%, rgba(217,70,239,.10), transparent 28%),
        linear-gradient(180deg, #fbfcff 0%, #f6f8fd 100%);
      color:var(--text);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    .container{width:min(var(--max), calc(100% - 32px)); margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:50;
      backdrop-filter:saturate(150%) blur(14px);
      background:rgba(247,248,252,.82);
      border-bottom:1px solid rgba(229,232,242,.7);
    }
    .nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:74px}
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand .logo{width:42px;height:42px;object-fit:contain}
    .brand strong{display:block;font-size:1.02rem;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:var(--panel);color:var(--text);
      border-radius:12px;padding:10px 12px;box-shadow:var(--shadow-soft)
    }
    .nav{
      display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end
    }
    .nav a{
      padding:10px 12px;border-radius:999px;color:var(--text);font-size:.92rem;
      transition:transform .2s ease, background .2s ease, color .2s ease;
    }
    .nav a:hover,.nav a:focus{background:rgba(79,70,229,.08);color:var(--brand);transform:translateY(-1px)}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:none;border-radius:14px;padding:12px 18px;font-weight:700;
      cursor:pointer;transition:transform .2s ease, box-shadow .2s ease, background .2s ease;
      box-shadow:var(--shadow-soft)
    }
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-3));color:#fff}
    .btn-secondary{background:var(--panel);color:var(--text);border:1px solid var(--line)}
    main{overflow:hidden}
    .hero{
      padding:52px 0 28px;
      position:relative;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:stretch
    }
    .hero-copy,.hero-side,.section-card,.info-card,.feature-card,.review-card,.faq-item,.timeline-item,.price-card,.form-card,.blog-card,.case-card,.metric-card,.compare-card,.network-card,.support-card{
      background:rgba(255,255,255,.92);
      border:1px solid rgba(229,232,242,.9);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
    }
    .hero-copy{padding:34px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      background:linear-gradient(135deg,rgba(79,70,229,.12),rgba(217,70,239,.12));
      color:var(--brand);border:1px solid rgba(79,70,229,.12);
      padding:8px 14px;border-radius:999px;font-size:.88rem;font-weight:700
    }
    h1{margin:16px 0 14px;font-size:clamp(2rem,4vw,3.7rem);line-height:1.08;letter-spacing:-.03em}
    .hero p{margin:0;color:var(--muted);font-size:1.04rem;line-height:1.85}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:26px}
    .mini{
      padding:14px;border-radius:18px;background:linear-gradient(180deg,rgba(79,70,229,.06),rgba(255,255,255,.7));
      border:1px solid rgba(79,70,229,.10)
    }
    .mini strong{display:block;font-size:1.05rem}
    .mini span{display:block;color:var(--muted);font-size:.88rem;margin-top:6px;line-height:1.5}
    .hero-side{padding:22px;display:grid;gap:14px;align-content:start}
    .hero-side .panel{
      background:linear-gradient(135deg, rgba(79,70,229,.08), rgba(15,118,110,.08));
      border-radius:18px;padding:18px;border:1px solid rgba(79,70,229,.12)
    }
    .panel h3{margin:0 0 8px;font-size:1.02rem}
    .panel p{margin:0;color:var(--muted);line-height:1.75;font-size:.95rem}
    .contact-list{display:grid;gap:10px}
    .contact-row{display:flex;justify-content:space-between;gap:10px;padding:12px 14px;border-radius:14px;background:#fff;border:1px solid var(--line);font-size:.95rem}
    section{padding:18px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:18px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:clamp(1.45rem,2.8vw,2.1rem)}
    .section-head p{margin:0;color:var(--muted);max-width:720px;line-height:1.8}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .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}
    .metric-card,.feature-card,.review-card,.timeline-item,.price-card,.case-card,.compare-card,.network-card,.support-card,.blog-card{padding:22px}
    .metric-card strong{display:block;font-size:1.55rem}
    .metric-card span{display:block;color:var(--muted);margin-top:8px;line-height:1.6}
    .feature-card h3,.case-card h3,.review-card h3,.price-card h3,.compare-card h3,.network-card h3,.support-card h3,.blog-card h3{margin:0 0 10px;font-size:1.08rem}
    .feature-card p,.case-card p,.review-card p,.price-card p,.compare-card p,.network-card p,.support-card p,.blog-card p{margin:0;color:var(--muted);line-height:1.8}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:9px 12px;border-radius:999px;background:var(--panel);border:1px solid var(--line);font-size:.9rem;color:#334155}
    .timeline{display:grid;gap:14px}
    .timeline-item{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start}
    .step-dot{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--brand-3));color:#fff;font-weight:800}
    .table-wrap{overflow:auto;border-radius:20px;border:1px solid var(--line);background:var(--panel);box-shadow:var(--shadow-soft)}
    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:#f8faff;font-size:.95rem}
    td{color:#334155;line-height:1.7}
    .score{
      display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--brand)
    }
    .faq{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-question{
      width:100%;display:flex;justify-content:space-between;align-items:center;gap:18px;
      padding:18px 20px;background:transparent;border:none;color:var(--text);cursor:pointer;text-align:left;font-size:1rem;font-weight:700
    }
    .faq-answer{max-height:0;overflow:hidden;transition:max-height .25s ease;padding:0 20px}
    .faq-answer p{margin:0 0 18px;color:var(--muted);line-height:1.8}
    .faq-item.active .faq-answer{max-height:200px}
    .faq-item.active .faq-question .icon{transform:rotate(45deg)}
    .icon{transition:transform .2s ease}
    .reviews,.blogs,.cases,.pricing,.network,.support,.compare,.about,.services,.process,.match,.token,.training,.help,.faq-sec,.wiki,.news,.contact,.partner{padding-top:8px}
    .review-card .meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
    .avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,rgba(79,70,229,.14),rgba(217,70,239,.14));color:var(--brand);font-weight:800}
    .stars{color:#f59e0b;font-size:1rem;letter-spacing:1px}
    .form-card{padding:24px}
    form{display:grid;gap:14px}
    .form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    label{display:block;font-weight:700;font-size:.95rem;margin-bottom:8px}
    input,select,textarea{
      width:100%;border:1px solid var(--line);border-radius:14px;padding:13px 14px;
      background:#fff;color:var(--text);font:inherit;outline:none;transition:border .2s ease, box-shadow .2s ease
    }
    input:focus,select:focus,textarea:focus{border-color:rgba(79,70,229,.55);box-shadow:0 0 0 4px rgba(79,70,229,.08)}
    textarea{min-height:126px;resize:vertical}
    .footer{
      margin-top:18px;padding:24px 0 34px;border-top:1px solid var(--line);background:rgba(255,255,255,.55)
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}
    .footer a{color:#334155}
    .footer small,.footer p,.footer li{color:var(--muted);line-height:1.8}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line)}
    .float-contact{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .float-contact a,.backtop{
      width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--brand),var(--brand-3));color:#fff;font-weight:800;box-shadow:var(--shadow)
    }
    .backtop{background:linear-gradient(135deg,var(--brand-2),var(--brand))}
    .toast{
      display:inline-flex;align-items:center;gap:8px;padding:9px 12px;border-radius:999px;
      background:rgba(15,118,110,.08);color:var(--brand-2);font-size:.9rem;font-weight:700
    }
    .subtle{color:var(--muted)}
    .article-list{display:grid;gap:12px}
    .article-list a{display:flex;justify-content:space-between;gap:14px;padding:16px 18px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:var(--shadow-soft)}
    .article-list span{color:var(--muted)}
    .compare-high{font-weight:800;color:var(--brand)}
    .pill{display:inline-flex;padding:7px 10px;border-radius:999px;background:rgba(79,70,229,.08);color:var(--brand);font-weight:700;font-size:.85rem}
    .scroll-reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease, transform .5s ease}
    .scroll-reveal.in{opacity:1;transform:none}
    .nav-panel{display:none}
    @media (max-width: 980px){
      .hero-grid,.footer-grid,.grid-4,.grid-3,.grid-2,.form-grid{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:start}
      .nav-toggle{display:inline-flex}
      .nav{
        display:none;position:absolute;left:16px;right:16px;top:74px;flex-direction:column;align-items:stretch;
        padding:14px;background:rgba(255,255,255,.98);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)
      }
      .nav.show{display:flex}
      .nav a{text-align:center;background:#f8faff}
      .nav-wrap{position:relative}
      table{min-width:720px}
    }