:root{
      --bg:#0b1020;
      --bg2:#11172b;
      --card:#121a31cc;
      --card2:#0f1730;
      --line:#2c375f;
      --text:#eef2ff;
      --muted:#b7c0df;
      --accent:#ff4fd8;
      --accent2:#8b5cf6;
      --accent3:#22d3ee;
      --warm:#ffd166;
      --good:#48e2a8;
      --shadow:0 18px 50px rgba(0,0,0,.28);
      --radius:22px;
      --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:
      radial-gradient(circle at top left, rgba(255,79,216,.22), transparent 28%),
      radial-gradient(circle at top right, rgba(34,211,238,.15), transparent 24%),
      radial-gradient(circle at 20% 80%, rgba(139,92,246,.15), transparent 22%),
      linear-gradient(180deg,#090d1a 0%, #0d1326 50%, #0a0f1d 100%);
      color:var(--text);overflow-x:hidden}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(8,12,24,.74);backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,.06)}
    .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 .ai-page-logo{width:42px;height:42px;border-radius:12px;object-fit:cover;background:#fff;padding:4px;box-shadow:0 8px 24px rgba(255,79,216,.18)}
    .brand-title{display:flex;flex-direction:column;min-width:0}
    .brand-title strong{font-size:16px;line-height:1.1}
    .brand-title span{font-size:12px;color:var(--muted)}
    .nav-toggle{display:none;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.05);color:var(--text);border-radius:14px;padding:10px 12px}
    .nav-links{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#dce3ff;padding:9px 12px;border-radius:999px;transition:.2s;background:transparent}
    .nav-links a:hover{background:rgba(255,255,255,.08);transform:translateY(-1px)}
    .nav-cta{display:flex;gap:10px;align-items:center}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:999px;padding:12px 18px;font-weight:700;cursor:pointer;transition:.25s;white-space:nowrap}
    .btn-primary{background:linear-gradient(135deg,var(--accent),#ff7ad9 50%,var(--accent2));color:#fff;box-shadow:0 14px 30px rgba(255,79,216,.22)}
    .btn-secondary{background:rgba(255,255,255,.07);color:var(--text);border:1px solid rgba(255,255,255,.12)}
    .btn:hover{transform:translateY(-2px);filter:saturate(1.1)}
    .hero{padding:38px 0 22px;position:relative}
    .hero-grid{display:grid;grid-template-columns:1.25fr .9fr;gap:22px;align-items:stretch}
    .hero-main,.hero-side,.section-card,.metric,.service-card,.step,.review,.news-card,.faq-item,.form-card,.price-card,.case-card,.compare-card,.timeline-card,.tag-cloud,.network-card{background:linear-gradient(180deg, rgba(18,26,49,.88), rgba(13,18,36,.88));border:1px solid rgba(255,255,255,.08);box-shadow:var(--shadow);border-radius:var(--radius)}
    .hero-main{padding:30px;position:relative;overflow:hidden}
    .hero-main:before{content:"";position:absolute;inset:-2px;background:
      radial-gradient(circle at 10% 10%, rgba(255,79,216,.22), transparent 24%),
      radial-gradient(circle at 90% 20%, rgba(34,211,238,.15), transparent 20%),
      radial-gradient(circle at 50% 100%, rgba(139,92,246,.18), transparent 25%);
      pointer-events:none}
    .hero-kicker{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.08);padding:8px 12px;border-radius:999px;color:#f7d5ff;font-size:13px}
    h1{margin:16px 0 12px;font-size:clamp(32px, 4vw, 58px);line-height:1.06;letter-spacing:-.03em}
    .hero-desc{color:var(--muted);font-size:16px;line-height:1.85;max-width:64ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .hero-points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:24px}
    .pill{padding:14px 14px;border-radius:18px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);color:#edf0ff}
    .pill strong{display:block;margin-bottom:4px;font-size:15px}
    .pill span{font-size:13px;color:var(--muted)}
    .hero-side{padding:22px;display:grid;gap:14px;align-content:start}
    .side-card{padding:16px;border-radius:18px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08)}
    .side-card h3{margin:0 0 8px;font-size:16px}
    .side-card p,.side-card li{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
    .stats{padding:16px 0 8px}
    .stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .metric{padding:18px}
    .metric strong{display:block;font-size:28px;line-height:1;color:#fff;margin-bottom:8px}
    .metric span{color:var(--muted);font-size:13px;line-height:1.5}
    .section{padding:24px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:18px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);max-width:62ch;line-height:1.75}
    .section-card{padding:22px}
    .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}
    .service-card,.case-card,.review,.news-card,.price-card,.compare-card,.timeline-card,.network-card{padding:18px}
    .service-card h3,.case-card h3,.review h3,.news-card h3,.compare-card h3,.price-card h3,.timeline-card h3,.network-card h3{margin:0 0 10px;font-size:18px}
    .service-card p,.case-card p,.review p,.news-card p,.price-card p,.timeline-card p,.network-card p{margin:0;color:var(--muted);line-height:1.78}
    .tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
    .tag{font-size:12px;color:#f4eafe;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);padding:8px 10px;border-radius:999px}
    .flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .step{padding:18px;position:relative;overflow:hidden}
    .step .num{display:inline-flex;width:34px;height:34px;border-radius:50%;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;font-weight:800;margin-bottom:12px}
    .step h3{margin:0 0 8px;font-size:17px}
    .step p{margin:0;color:var(--muted);line-height:1.75}
    .compare-wrap{overflow:auto;border-radius:18px;border:1px solid rgba(255,255,255,.08)}
    table{width:100%;border-collapse:collapse;min-width:820px;background:rgba(10,14,28,.7)}
    th,td{padding:14px 14px;border-bottom:1px solid rgba(255,255,255,.08);text-align:left;vertical-align:top}
    th{color:#fff;background:rgba(255,255,255,.05);font-size:14px}
    td{color:var(--muted);font-size:14px;line-height:1.7}
    .badge-good{color:#062916;background:#48e2a8;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:700;display:inline-block}
    .faq-list{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:18px;background:transparent;border:none;color:var(--text);font-size:16px;text-align:left;cursor:pointer}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 18px;color:var(--muted);line-height:1.8}
    .faq-item.active .faq-a{padding-bottom:18px;max-height:220px}
    .reviews,.news-grid,.case-grid,.pricing-grid,.network-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .review .meta{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;gap:10px}
    .stars{color:#ffd166;letter-spacing:2px}
    .form-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
    form{display:grid;gap:12px}
    .field{display:grid;gap:8px}
    label{font-size:13px;color:#dbe2ff}
    input,select,textarea{width:100%;border-radius:14px;border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.06);color:var(--text);padding:13px 14px;outline:none}
    textarea{min-height:132px;resize:vertical}
    input::placeholder,textarea::placeholder{color:#90a0c9}
    input:focus,select:focus,textarea:focus{border-color:rgba(255,79,216,.65);box-shadow:0 0 0 3px rgba(255,79,216,.12)}
    .footer{padding:26px 0 34px;margin-top:8px;border-top:1px solid rgba(255,255,255,.08);background:#090d1a;color:#e8edff}
    .footer a{color:#f6c9ff}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:16px}
    .footer small,.footer p{color:#cbd5f3;line-height:1.8}
    .floating{position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px}
    .float-btn{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;box-shadow:var(--shadow);font-weight:800}
    .float-contact{position:fixed;left:16px;bottom:16px;z-index:60;display:flex;gap:10px;align-items:center;background:rgba(10,14,28,.88);border:1px solid rgba(255,255,255,.08);border-radius:18px;padding:10px 12px;backdrop-filter:blur(12px);box-shadow:var(--shadow)}
    .float-contact img{width:56px;height:56px;border-radius:12px;object-fit:cover;background:#fff}
    .float-contact strong{display:block;font-size:13px}
    .float-contact span{display:block;color:var(--muted);font-size:12px;line-height:1.4}
    .reveal{opacity:0;transform:translateY(18px);transition:.6s ease}
    .reveal.show{opacity:1;transform:none}
    .table-note{margin-top:12px;color:var(--muted);font-size:13px;line-height:1.7}
    .mini-link{display:inline-flex;align-items:center;gap:8px;color:#f7d5ff}
    .article-list{display:grid;gap:12px}
    .article-item{display:flex;justify-content:space-between;gap:12px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.08)}
    .article-item:last-child{border-bottom:none;padding-bottom:0}
    .article-item span{color:var(--muted);font-size:13px}
    .timeline{display:grid;gap:12px}
    .timeline-item{display:grid;grid-template-columns:72px 1fr;gap:12px;padding:14px;border-radius:18px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08)}
    .timeline-item b{color:#fff}
    .cloud{display:flex;flex-wrap:wrap;gap:10px}
    .cloud a{padding:10px 12px;border-radius:999px;border:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.05);color:#edf1ff;font-size:13px}
    .image-strip{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .image-strip img,.media-card img{width:100%;border-radius:18px;object-fit:cover;border:1px solid rgba(255,255,255,.08);background:#fff}
    .media-card{padding:16px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);border-radius:20px}
    .price-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .price{font-size:30px;font-weight:800;color:#fff;margin:10px 0}
    .muted{color:var(--muted)}
    .separator{height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent);margin:18px 0}
    @media (max-width: 980px){
      .hero-grid,.form-grid,.grid-3,.grid-2,.reviews,.news-grid,.case-grid,.pricing-grid,.network-grid,.stats-grid,.flow,.price-grid,.footer-grid{grid-template-columns:1fr 1fr}
      .hero-grid{grid-template-columns:1fr}
    }
    @media (max-width: 760px){
      .nav-toggle{display:inline-flex}
      .nav-links{display:none;width:100%;padding-top:10px}
      .nav.open{align-items:flex-start;flex-wrap:wrap}
      .nav.open .nav-links{display:flex;justify-content:flex-start}
      .nav-cta{width:100%;justify-content:flex-start;flex-wrap:wrap}
      .hero{padding-top:22px}
      .hero-main{padding:22px}
      .hero-points,.stats-grid,.grid-3,.grid-2,.flow,.reviews,.news-grid,.case-grid,.pricing-grid,.network-grid,.price-grid,.footer-grid,.form-grid{grid-template-columns:1fr}
      .section-head{align-items:flex-start;flex-direction:column}
      .hero-actions{flex-direction:column;align-items:stretch}
      .float-contact{max-width:calc(100% - 100px)}
      .image-strip{grid-template-columns:1fr}
    }