:root{
      --bg:#f6f2ff;
      --bg2:#fffaf4;
      --card:#ffffff;
      --text:#1f2430;
      --muted:#5d6472;
      --line:rgba(100,80,160,.14);
      --primary:#7c3aed;
      --primary2:#a855f7;
      --accent:#ff5ea8;
      --shadow:0 18px 40px rgba(80, 44, 150, .12);
      --shadow2:0 10px 25px rgba(124, 58, 237, .12);
      --radius:20px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 10%, rgba(168,85,247,.16), transparent 26%),
        radial-gradient(circle at 88% 14%, rgba(255,94,168,.13), transparent 24%),
        linear-gradient(180deg,var(--bg) 0%, #fbf9ff 32%, #fff 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    header{
      position:sticky; top:0; z-index:50;
      backdrop-filter:blur(14px);
      background:rgba(246,242,255,.76);
      border-bottom:1px solid rgba(124,58,237,.1);
    }
    .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:44px;height:44px;object-fit:contain;border-radius:12px;background:#fff;box-shadow:var(--shadow2)}
    .brand strong{display:block;font-size:16px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:3px}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
    .nav-links a{font-size:14px;color:#2b3140;padding:8px 0;position:relative}
    .nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:linear-gradient(90deg,var(--primary),var(--accent));transition:.25s}
    .nav-links a:hover::after{width:100%}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:999px;padding:12px 18px;font-weight:700;cursor:pointer;transition:.25s;box-shadow:var(--shadow2)}
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff}
    .btn-ghost{background:#fff;color:var(--primary);border:1px solid rgba(124,58,237,.16)}
    .menu-btn{display:none;background:#fff;border:1px solid rgba(124,58,237,.15);border-radius:12px;padding:10px}
    .hero{padding:52px 0 26px}
    .hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:stretch}
    .hero-copy,.hero-panel,.section-card,.panel,.faq-item,.review-card,.article-card,.case-card,.price-card,.timeline-item,.metric,.form-box,.compare-box,.tag-box,.network-box,.service-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-copy{padding:34px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:rgba(124,58,237,.08);color:var(--primary);font-weight:700;font-size:13px}
    h1{font-size:clamp(30px,4vw,48px);line-height:1.08;margin:16px 0 14px}
    .lead{font-size:16px;line-height:1.9;color:var(--muted);margin:0 0 22px}
    .hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:20px}
    .hero-highlights{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
    .mini{padding:14px;border-radius:16px;background:linear-gradient(180deg,#fff,#f8f4ff);border:1px solid rgba(124,58,237,.1)}
    .mini strong{display:block;font-size:18px;margin-bottom:6px}
    .mini span{font-size:13px;color:var(--muted);line-height:1.6}
    .hero-panel{padding:24px;display:grid;gap:14px}
    .hero-visual{
      min-height:220px;border-radius:18px;
      background:
        linear-gradient(135deg, rgba(124,58,237,.18), rgba(255,94,168,.18)),
        radial-gradient(circle at 20% 30%, rgba(255,255,255,.95), transparent 24%),
        linear-gradient(180deg,#f8f3ff,#fff);
      position:relative;overflow:hidden;border:1px solid rgba(124,58,237,.12)
    }
    .hero-visual::before,.hero-visual::after{content:"";position:absolute;border-radius:999px;filter:blur(0)}
    .hero-visual::before{width:140px;height:140px;right:-24px;top:-30px;background:rgba(168,85,247,.38)}
    .hero-visual::after{width:200px;height:200px;left:-60px;bottom:-70px;background:rgba(255,94,168,.24)}
    .floating-card{position:absolute;left:18px;right:18px;bottom:18px;background:rgba(255,255,255,.84);backdrop-filter:blur(10px);border-radius:16px;padding:14px;border:1px solid rgba(124,58,237,.12)}
    .floating-card b{display:block;font-size:15px;margin-bottom:4px}
    .floating-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.6}
    .metric-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .metric{padding:18px}
    .metric strong{font-size:26px;color:var(--primary)}
    .metric span{display:block;margin-top:6px;color:var(--muted);font-size:13px;line-height:1.6}
    section{padding:18px 0}
    .section-card{padding:28px}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:18px;margin-bottom:18px}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);line-height:1.8;max-width:720px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .service-card{padding:20px}
    .service-card h3,.case-card h3,.article-card h3,.review-card h3,.faq-item summary{margin:0 0 10px;font-size:18px}
    .service-card p,.case-card p,.article-card p,.review-card p,.panel p,.compare-box p{margin:0;color:var(--muted);line-height:1.8}
    .chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
    .chip{padding:7px 11px;border-radius:999px;background:rgba(124,58,237,.08);color:#4b2999;font-size:13px}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start}
    .panel{padding:24px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:18px;border-radius:18px;background:linear-gradient(180deg,#fff,#f7f3ff);border:1px solid rgba(124,58,237,.1)}
    .step b{display:inline-flex;width:34px;height:34px;border-radius:12px;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;margin-bottom:12px}
    .step h3{margin:0 0 8px}
    .step p{margin:0;color:var(--muted);line-height:1.7;font-size:14px}
    .table-wrap{overflow:auto;border-radius:18px;border:1px solid rgba(124,58,237,.12)}
    table{width:100%;border-collapse:collapse;min-width:860px;background:#fff}
    th,td{padding:14px 16px;border-bottom:1px solid rgba(124,58,237,.1);text-align:left;vertical-align:top}
    th{background:#f8f3ff;color:#34214d;font-size:14px}
    td{font-size:14px;color:#394150}
    .compare-box .rating{font-size:20px;color:var(--primary);font-weight:800}
    .tag-box,.network-box{padding:18px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid rgba(124,58,237,.12);font-size:13px}
    .price-grid,.review-grid,.article-grid,.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .price-card,.review-card,.article-card,.case-card{padding:20px}
    .price-card strong{display:block;font-size:28px;color:var(--primary);margin:8px 0}
    .timeline{display:grid;gap:14px}
    .timeline-item{padding:18px}
    .timeline-item b{display:inline-block;color:var(--primary);margin-bottom:8px}
    .faq{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-item summary{list-style:none;padding:18px 20px;cursor:pointer}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item .ans{padding:0 20px 18px;color:var(--muted);line-height:1.8}
    .form-box 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:14px;font-weight:700;color:#263042}
    input,select,textarea{
      width:100%;border:1px solid rgba(124,58,237,.15);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:rgba(124,58,237,.45);box-shadow:0 0 0 4px rgba(124,58,237,.08)}
    .form-actions{display:flex;gap:12px;flex-wrap:wrap;grid-column:1/-1}
    .links-list{display:grid;gap:10px}
    .links-list a{color:#3a2a63}
    .footer-links{display:flex;flex-wrap:wrap;gap:12px}
    footer{margin-top:18px;background:#f6f1ff;border-top:1px solid rgba(124,58,237,.12);color:#283040}
    .footer-inner{padding:22px 0;display:grid;gap:14px}
    .footer-top{display:flex;justify-content:space-between;gap:18px;align-items:start;flex-wrap:wrap}
    .footer-note{font-size:13px;color:#586172;line-height:1.8}
    .float-tools{position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px}
    .float-tools a,.float-tools button{
      width:48px;height:48px;border-radius:16px;border:1px solid rgba(124,58,237,.14);background:#fff;box-shadow:var(--shadow2);display:grid;place-items:center;cursor:pointer;color:var(--primary);font-weight:800
    }
    .backtop{display:none}
    .floating-kf{
      position:fixed;left:16px;bottom:16px;z-index:60;display:flex;align-items:center;gap:12px;background:#fff;border:1px solid rgba(124,58,237,.14);box-shadow:var(--shadow);border-radius:18px;padding:10px 12px
    }
    .floating-kf img{width:56px;height:56px;object-fit:cover;border-radius:12px}
    .floating-kf b{display:block;font-size:14px}
    .floating-kf span{display:block;font-size:12px;color:var(--muted);margin-top:3px}
    .mobile-only{display:none}
    .scroll-anim{opacity:0;transform:translateY(14px);transition:.55s ease}
    .scroll-anim.in{opacity:1;transform:none}
    @media (max-width: 980px){
      .hero-grid,.split,.grid-3,.steps,.price-grid,.review-grid,.article-grid,.case-grid,.metric-row{grid-template-columns:1fr 1fr}
      .form-box form{grid-template-columns:1fr}
      .hero-highlights{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-btn{display:inline-grid;place-items:center}
      .nav.open .nav-links{
        display:grid;grid-template-columns:1fr 1fr;gap:10px;position:absolute;left:16px;right:16px;top:68px;background:#fff;padding:14px;border-radius:18px;border:1px solid rgba(124,58,237,.12);box-shadow:var(--shadow)
      }
      .nav.open .nav-actions{margin-left:auto}
      .mobile-only{display:block}
    }
    @media (max-width: 640px){
      .hero{padding-top:22px}
      .hero-copy,.hero-panel,.section-card,.panel,.price-card,.review-card,.article-card,.case-card,.timeline-item,.metric,.form-box,.compare-box,.tag-box,.network-box,.service-card,.faq-item{padding:18px}
      .hero-grid,.split,.grid-3,.steps,.price-grid,.review-grid,.article-grid,.case-grid,.metric-row{grid-template-columns:1fr}
      .section-head{align-items:start;flex-direction:column}
      .footer-top{flex-direction:column}
      .floating-kf{max-width:calc(100% - 32px)}
    }