:root{
      --bg:#f6f8fc;
      --surface:#ffffff;
      --surface-2:#f0f5ff;
      --line:#d9e3f2;
      --text:#132033;
      --muted:#5f6f86;
      --primary:#2f6bff;
      --primary-2:#6e38f7;
      --accent:#00c2ff;
      --warn:#ffb54d;
      --success:#20b26b;
      --shadow:0 18px 45px rgba(24,49,102,.12);
      --radius:20px;
      --radius-sm:14px;
      --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",sans-serif;background:
      radial-gradient(circle at top left, rgba(47,107,255,.10), transparent 26%),
      radial-gradient(circle at 85% 10%, rgba(110,56,247,.08), transparent 20%),
      linear-gradient(180deg,#fbfcff 0%, #f4f7fd 100%);color:var(--text);line-height:1.7}
    a{color:var(--primary);text-decoration:none}
    img{display:block;max-width:100%}
    .container{max-width:var(--container);margin:0 auto;padding:0 20px}
    .site-header{position:sticky;top:0;z-index:60;background:rgba(251,252,255,.86);backdrop-filter:blur(14px);border-bottom:1px solid rgba(217,227,242,.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;padding:4px;box-shadow:0 8px 18px rgba(47,107,255,.12)}
    .brand strong{font-size:18px;letter-spacing:.4px}
    .brand 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{color:var(--text);font-size:14px;opacity:.88}
    .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(--primary),var(--primary-2));color:#fff;box-shadow:0 12px 24px rgba(47,107,255,.22)}
    .btn-ghost{background:#fff;color:var(--text);border-color:var(--line)}
    .btn:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(24,49,102,.14)}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)}
    .hero{padding:36px 0 18px}
    .hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:24px;align-items:stretch}
    .hero-copy,.hero-panel,.card,.stat,.review,.faq-item,.price-card,.info-box,.timeline-item,.compare-table,.form-card,.article-item,.case-item,.network-card{background:rgba(255,255,255,.92);border:1px solid rgba(217,227,242,.92);box-shadow:var(--shadow);border-radius:var(--radius)}
    .hero-copy{padding:34px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:#eef4ff;color:#2957d7;font-size:13px;font-weight:700}
    h1{margin:18px 0 14px;font-size:clamp(32px,5vw,54px);line-height:1.08;letter-spacing:-.6px}
    .hero-copy p{margin:0;color:var(--muted);font-size:16px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
    .tag{padding:8px 12px;border-radius:999px;background:linear-gradient(180deg,#f6f9ff,#eef4ff);border:1px solid #dce6fb;color:#27415f;font-size:13px}
    .hero-panel{padding:22px;display:grid;gap:16px;position:relative;overflow:hidden}
    .hero-panel:before{content:"";position:absolute;inset:auto -40px -60px auto;width:180px;height:180px;background:radial-gradient(circle, rgba(47,107,255,.18), transparent 70%);pointer-events:none}
    .mini-shell{background:linear-gradient(135deg,#0f1f3a,#17356a);color:#eaf2ff;border-radius:18px;padding:18px;position:relative;overflow:hidden}
    .mini-shell:after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,transparent 0%,rgba(255,255,255,.08) 50%,transparent 100%);transform:translateX(-60%);animation:shine 6s infinite}
    .mini-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:14px}
    .mini-box{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:12px}
    .mini-box b{display:block;font-size:18px}
    .mini-box small{color:#c9d8ef}
    .hero-note{display:flex;flex-direction:column;gap:10px}
    .hero-note .line{display:flex;justify-content:space-between;gap:12px;padding:12px 14px;border-radius:14px;background:#f7faff;border:1px solid #e1e9f7;color:#22324a;font-size:14px}
    .section{padding:20px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);max-width:720px}
    .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .stat{padding:18px}
    .stat b{display:block;font-size:30px;line-height:1.1}
    .stat span{color:var(--muted);font-size:14px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .card{padding:20px}
    .card h3{margin:0 0 8px;font-size:20px}
    .card p{margin:0;color:var(--muted)}
    .icon{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,#eaf2ff,#f4ecff);color:#2957d7;font-weight:800;margin-bottom:14px}
    .workflow{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
    .step{padding:18px}
    .step .num{display:inline-flex;width:34px;height:34px;border-radius:50%;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;font-weight:800;margin-bottom:10px}
    .compare-wrap{overflow:auto;border-radius:var(--radius)}
    table{width:100%;border-collapse:separate;border-spacing:0;min-width:860px;background:#fff}
    th,td{padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}
    th{background:#f4f8ff;color:#27415f;font-size:14px}
    tr:last-child td{border-bottom:none}
    .badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:#edf6ff;color:#2957d7;font-size:12px;font-weight:700}
    .matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .price-card{padding:18px}
    .price{font-size:34px;font-weight:800;color:#193461}
    .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .timeline-item{padding:18px;position:relative}
    .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review{padding:18px}
    .stars{color:#ffb54d;letter-spacing:2px;font-size:18px}
    .faq-list{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 20px;background:transparent;border:none;color:var(--text);font-size:16px;font-weight:700;text-align:left;cursor:pointer}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 20px;color:var(--muted)}
    .faq-item.active .faq-a{max-height:220px;padding-bottom:18px}
    .faq-item.active .faq-q .arrow{transform:rotate(180deg)}
    .faq-q .arrow{transition:transform .25s ease}
    .articles,.cases,.network{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article-item,.case-item,.network-card{padding:18px}
    .contact-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
    .form-card{padding:22px}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .field{display:flex;flex-direction:column;gap:8px}
    label{font-size:14px;color:#2b3e57;font-weight:700}
    input,select,textarea{width:100%;padding:13px 14px;border-radius:14px;border:1px solid var(--line);background:#fff;color:var(--text);font:inherit;outline:none;transition:border-color .2s, box-shadow .2s}
    input:focus,select:focus,textarea:focus{border-color:#8cb0ff;box-shadow:0 0 0 4px rgba(47,107,255,.08)}
    textarea{min-height:120px;resize:vertical}
    .aside-box{padding:22px;display:grid;gap:16px}
    .floating{position:fixed;right:18px;bottom:18px;z-index:70;display:grid;gap:10px}
    .float-btn{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 14px 30px rgba(47,107,255,.3);border:none;cursor:pointer}
    .float-panel{position:absolute;right:0;bottom:62px;width:280px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:16px;display:none}
    .floating.open .float-panel{display:block}
    .footer{margin-top:10px;background:#0f1d36;color:#dfe9fb;padding:26px 0}
    .footer a{color:#9fc2ff}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px}
    .footer small{color:#aac0df}
    .mobile-only{display:none}
    .comment-tags,.tags-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-soft{padding:8px 11px;border-radius:999px;background:#f4f8ff;border:1px solid #dce6fb;color:#405876;font-size:13px}
    .content-figure{border-radius:18px;overflow:hidden;border:1px solid var(--line);background:#fff}
    .content-figure img{width:100%;height:auto}
    .center{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
    .muted{color:var(--muted)}
    .subtle{font-size:13px;color:#6a788d}
    .sticky-cta{display:flex;gap:10px;flex-wrap:wrap}
    .section-soft{background:linear-gradient(180deg,rgba(255,255,255,.52),rgba(244,248,255,.72));border-top:1px solid rgba(217,227,242,.5);border-bottom:1px solid rgba(217,227,242,.5)}
    .ai-page-home-link{font-weight:800}
    @keyframes shine{0%{transform:translateX(-70%)}50%{transform:translateX(70%)}100%{transform:translateX(70%)}}
    @media (max-width: 1024px){
      .hero-grid,.contact-wrap,.footer-grid,.grid-3,.grid-2,.matrix,.review-grid,.articles,.cases,.network,.timeline,.workflow{grid-template-columns:1fr 1fr}
      .stats{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width: 768px){
      .menu-toggle{display:inline-flex}
      .nav-links{display:none;position:absolute;left:20px;right:20px;top:68px;background:#fff;border:1px solid var(--line);border-radius:18px;flex-direction:column;align-items:flex-start;padding:14px;box-shadow:var(--shadow)}
      .site-header.open .nav-links{display:flex}
      .nav{position:relative}
      .hero-grid,.contact-wrap,.footer-grid,.grid-3,.grid-2,.matrix,.review-grid,.articles,.cases,.network,.timeline,.workflow,.stats,.form-grid{grid-template-columns:1fr}
      .hero-copy,.hero-panel{padding:22px}
      .section-head{flex-direction:column;align-items:flex-start}
      .mobile-only{display:block}
      table{min-width:760px}
    }
    .reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease, transform .6s ease}
    .reveal.visible{opacity:1;transform:none}