:root{
      --bg:#f7f4ff;
      --bg2:#ffffff;
      --panel:#ffffff;
      --panel-soft:#faf7ff;
      --line:#e7ddff;
      --text:#231b36;
      --muted:#6e6785;
      --primary:#7c3aed;
      --primary2:#a855f7;
      --accent:#ec4899;
      --gold:#f59e0b;
      --shadow:0 18px 50px rgba(123,58,237,.12);
      --shadow2:0 10px 30px rgba(36,22,74,.08);
      --radius:22px;
      --radius2:16px;
      --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(168,85,247,.16), transparent 30%),
        radial-gradient(circle at top right, rgba(236,72,153,.10), transparent 24%),
        linear-gradient(180deg, #fbf9ff 0%, #f7f4ff 42%, #ffffff 100%);
      color:var(--text);
      line-height:1.7;
      overflow-x:hidden;
    }
    a{color:var(--primary);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:40;
      backdrop-filter:blur(16px);
      background:rgba(251,249,255,.86);
      border-bottom:1px solid rgba(231,221,255,.8);
    }
    .nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:76px}
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand img{width:44px;height:44px;object-fit:contain;border-radius:12px;background:#fff;box-shadow:var(--shadow2)}
    .brand-text{display:flex;flex-direction:column;min-width:0}
    .brand-text strong{font-size:1.03rem;line-height:1.2}
    .brand-text span{font-size:.82rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .menu-btn{display:none;border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:14px;padding:10px 12px;font-size:.95rem}
    nav ul{display:flex;align-items:center;gap:18px;list-style:none;margin:0;padding:0;flex-wrap:wrap;justify-content:flex-end}
    nav a{color:var(--text);font-size:.95rem}
    nav a:hover,.ai-page-home-link:hover{color:var(--primary)}
    .top-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:.2s ease;cursor:pointer;white-space:nowrap
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;box-shadow:0 12px 28px rgba(124,58,237,.25)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(124,58,237,.32)}
    .btn-ghost{background:rgba(255,255,255,.8);color:var(--text);border-color:var(--line)}
    .btn-ghost:hover{transform:translateY(-1px);border-color:#cdb8ff;box-shadow:var(--shadow2)}
    .hero{
      position:relative;padding:54px 0 22px;overflow:hidden
    }
    .hero::before,.hero::after{
      content:"";position:absolute;border-radius:50%;pointer-events:none
    }
    .hero::before{width:260px;height:260px;background:rgba(124,58,237,.10);right:-90px;top:28px;filter:blur(12px)}
    .hero::after{width:180px;height:180px;background:rgba(236,72,153,.10);left:-60px;bottom:0;filter:blur(10px)}
    .hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:24px;align-items:stretch}
    .hero-card,.side-card,.section-card,.feature-card,.case-card,.review-card,.faq-item,.info-card,.metric-card,.compare-card,.network-card,.pricing-card,.article-card,.timeline-item,.trust-card{
      background:rgba(255,255,255,.86);
      border:1px solid rgba(231,221,255,.95);
      box-shadow:var(--shadow2);
      border-radius:var(--radius);
    }
    .hero-card{padding:34px;position:relative;overflow:hidden}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(124,58,237,.08);color:var(--primary);padding:8px 14px;border-radius:999px;font-weight:700;font-size:.92rem}
    h1{margin:18px 0 12px;font-size:clamp(2rem,4vw,3.6rem);line-height:1.08;letter-spacing:-.03em}
    .hero p{margin:0;color:var(--muted);font-size:1.02rem;max-width:62ch}
    .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:14px;margin-top:28px}
    .mini-point{padding:14px 16px;border-radius:18px;background:linear-gradient(180deg,#fff, #fbf7ff);border:1px solid var(--line)}
    .mini-point strong{display:block;font-size:1.15rem}
    .mini-point span{color:var(--muted);font-size:.9rem}
    .side-card{padding:22px}
    .side-card h2{font-size:1.22rem;margin:0 0 10px}
    .side-list{display:grid;gap:12px;margin:16px 0 0;padding:0;list-style:none}
    .side-list li{display:flex;gap:10px;align-items:flex-start;color:var(--muted)}
    .dot{width:10px;height:10px;border-radius:999px;background:linear-gradient(135deg,var(--primary),var(--accent));margin-top:8px;flex:none}
    main{padding:18px 0 40px}
    section{scroll-margin-top:92px}
    .section{padding:22px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:14px;margin-bottom:18px}
    .section-head h2{margin:0;font-size:1.65rem}
    .section-head p{margin:0;color:var(--muted);max-width:62ch}
    .section-card{padding:24px}
    .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,.case-card,.review-card,.faq-item,.info-card,.compare-card,.network-card,.pricing-card,.article-card,.timeline-item,.trust-card{padding:20px}
    .metric-card strong,.feature-card h3,.case-card h3,.review-card h3,.info-card h3,.compare-card h3,.network-card h3,.pricing-card h3,.article-card h3,.trust-card h3{margin:0 0 8px;font-size:1.02rem}
    .metric-card p,.feature-card p,.case-card p,.review-card p,.info-card p,.compare-card p,.network-card p,.pricing-card p,.article-card p,.trust-card p{margin:0;color:var(--muted)}
    .metric-num{font-size:1.9rem;font-weight:800;color:var(--text);line-height:1.1}
    .pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
    .pill{padding:8px 12px;border-radius:999px;background:#f7f2ff;border:1px solid var(--line);color:#5a4f7d;font-size:.88rem}
    .split{
      display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:stretch
    }
    .feature-card{display:flex;flex-direction:column;gap:12px}
    .feature-icon{width:46px;height:46px;border-radius:14px;background:linear-gradient(135deg,rgba(124,58,237,.14),rgba(236,72,153,.12));display:grid;place-items:center;color:var(--primary);font-size:1.3rem}
    .steps{counter-reset:step}
    .step{position:relative;padding-left:0}
    .step .num{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;font-weight:800;margin-bottom:12px}
    .table-wrap{overflow:auto;border-radius:18px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:14px 14px;border-bottom:1px solid #ece4ff;text-align:left;vertical-align:top}
    th{background:#faf7ff;color:var(--text);font-size:.95rem}
    td{color:var(--muted)}
    .rating{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:10px 0 0}
    .stars{color:#f59e0b;font-size:1.12rem;letter-spacing:1px}
    .badge{display:inline-flex;align-items:center;gap:6px;padding:7px 11px;border-radius:999px;background:#f4ecff;color:#5b21b6;font-weight:700;font-size:.88rem}
    .compare-highlight{border:1px solid rgba(124,58,237,.22);background:linear-gradient(180deg,#fff,#faf6ff)}
    .tags{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#53486f}
    .review-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
    .review-role{color:var(--primary);font-weight:700;font-size:.92rem}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{width:100%;border:0;background:transparent;padding:18px 20px;text-align:left;color:var(--text);font-size:1rem;font-weight:700;display:flex;justify-content:space-between;gap:14px;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-icon{transition:transform .25s ease}
    .faq-item.open .faq-icon{transform:rotate(45deg)}
    .article-card{display:flex;flex-direction:column;gap:12px}
    .article-card .meta{font-size:.88rem;color:var(--muted)}
    .timeline{display:grid;gap:14px}
    .timeline-item{display:grid;grid-template-columns:120px 1fr;gap:14px;align-items:start}
    .timeline-item .when{color:var(--primary);font-weight:800}
    .form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .field{display:flex;flex-direction:column;gap:8px}
    label{font-weight:700;font-size:.95rem}
    input,select,textarea{
      width:100%;border:1px solid #dcd2f6;border-radius:14px;background:#fff;padding:13px 14px;
      color:var(--text);font:inherit;outline:none;transition:.2s ease
    }
    textarea{min-height:118px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#b58cff;box-shadow:0 0 0 4px rgba(124,58,237,.10)}
    .full{grid-column:1/-1}
    .form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:6px}
    .small{font-size:.9rem;color:var(--muted)}
    .footer{
      padding:18px 0 28px;background:linear-gradient(180deg,rgba(255,255,255,.82),rgba(248,242,255,.95));
      border-top:1px solid rgba(231,221,255,.9);color:var(--text)
    }
    .footer a{color:var(--primary)}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .9fr;gap:18px}
    .footer-card{padding:20px;background:rgba(255,255,255,.86);border:1px solid rgba(231,221,255,.9);border-radius:18px}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:8px 11px;border-radius:999px;background:#f7f2ff;border:1px solid var(--line)}
    .copyright{margin-top:14px;color:#5f5779;font-size:.9rem}
    .float-help{
      position:fixed;right:16px;bottom:16px;z-index:45;display:grid;gap:10px
    }
    .float-help a,.float-help button{
      border:0;border-radius:999px;padding:12px 14px;background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;
      box-shadow:0 14px 28px rgba(124,58,237,.24);font-weight:800;cursor:pointer
    }
    .float-help .secondary{background:#fff;color:var(--text);border:1px solid var(--line)}
    .reveal{opacity:0;transform:translateY(16px);transition:.55s ease}
    .reveal.visible{opacity:1;transform:none}
    .side-images{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .side-images img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:18px;border:1px solid var(--line)}
    .case-gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .case-card .thumb{aspect-ratio:16/10;border-radius:16px;overflow:hidden;margin-bottom:14px;border:1px solid var(--line);background:#f3ebff}
    .case-card .thumb img{width:100%;height:100%;object-fit:cover}
    .network-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .network-card ul{margin:12px 0 0;padding-left:18px;color:var(--muted)}
    .divider{height:1px;background:linear-gradient(90deg,transparent,rgba(124,58,237,.28),transparent);margin:20px 0}
    .price-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .pricing-card .price{font-size:2rem;font-weight:900;color:var(--text)}
    .hero-mini{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
    .hero-mini .tag{background:rgba(255,255,255,.75)}
    .nav-panel{display:none}
    .ai-page-logo{display:block}
    .ai-page-image{display:block}
    @media (max-width:1080px){
      .hero-grid,.grid-4,.grid-3,.case-gallery,.network-grid,.footer-grid,.price-list{grid-template-columns:1fr 1fr}
      .split{grid-template-columns:1fr}
    }
    @media (max-width:760px){
      .menu-btn{display:inline-flex}
      nav{position:absolute;left:16px;right:16px;top:76px;display:none}
      nav.open{display:block}
      nav ul{
        flex-direction:column;align-items:stretch;background:#fff;border:1px solid var(--line);border-radius:18px;
        box-shadow:var(--shadow);padding:12px
      }
      nav li a{display:block;padding:10px 12px;border-radius:12px;background:#faf7ff}
      .hero{padding-top:26px}
      .hero-grid,.grid-4,.grid-3,.grid-2,.case-gallery,.network-grid,.footer-grid,.price-list,.form-grid,.hero-points,.timeline-item{grid-template-columns:1fr}
      .hero-card,.side-card,.section-card{padding:20px}
      h1{font-size:2rem}
      .section-head{flex-direction:column;align-items:flex-start}
      .top-actions{display:none}
      .timeline-item{gap:8px}
      .case-card .thumb{aspect-ratio:16/9}
      .float-help{right:12px;bottom:12px}
    }