:root{
      --bg:#f6f8fc;
      --panel:#ffffff;
      --panel-2:#f2f5ff;
      --line:rgba(30,48,92,.12);
      --text:#13203a;
      --muted:#56627c;
      --brand:#6a5cff;
      --brand-2:#18c2ff;
      --brand-3:#ff4fd8;
      --ok:#14b86a;
      --shadow:0 16px 40px rgba(14,28,60,.10);
      --shadow-2:0 12px 24px rgba(60,82,146,.14);
      --radius:20px;
      --radius-sm:14px;
      --max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(24,194,255,.12), transparent 28%),
        radial-gradient(circle at top right, rgba(255,79,216,.10), transparent 26%),
        linear-gradient(180deg, #f8fbff 0%, #f4f7ff 48%, #f7f8fc 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max), calc(100% - 32px)); margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:40;
      backdrop-filter:blur(16px);
      background:rgba(246,248,252,.82);
      border-bottom:1px solid rgba(30,48,92,.08);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:18px;
      padding:14px 0;
    }
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand .ai-page-logo{width:42px;height:42px;object-fit:contain;border-radius:12px;background:#fff;padding:4px;box-shadow:0 6px 16px rgba(10,20,40,.08)}
    .brand strong{display:block;font-size:18px;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:14px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#23314f;padding:8px 10px;border-radius:999px;transition:.2s}
    .nav-links a:hover{background:rgba(106,92,255,.10);color:var(--brand)}
    .nav-cta{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:transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
      box-shadow:0 10px 24px rgba(106,92,255,.18);
    }
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-3));color:#fff}
    .btn-secondary{background:#fff;color:var(--text);border:1px solid var(--line);box-shadow:none}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px}
    .hero{
      position:relative;overflow:hidden;
      padding:42px 0 24px;
    }
    .hero::before,.hero::after{
      content:"";position:absolute;inset:auto;pointer-events:none;border-radius:50%;
      filter:blur(10px);
    }
    .hero::before{width:280px;height:280px;background:rgba(24,194,255,.14);right:-120px;top:10px}
    .hero::after{width:220px;height:220px;background:rgba(255,79,216,.12);left:-70px;bottom:30px}
    .hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:24px;align-items:stretch}
    .hero-main,.hero-side,.panel,.card,.faq-item,.form-card,.quote-card,.compare-card,.article-card{
      background:rgba(255,255,255,.82);backdrop-filter:blur(10px);
      border:1px solid rgba(30,48,92,.10);border-radius:var(--radius);box-shadow:var(--shadow)
    }
    .hero-main{padding:34px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      font-size:13px;font-weight:700;color:#3d4ad0;background:rgba(106,92,255,.10);
      padding:8px 12px;border-radius:999px;margin-bottom:16px
    }
    h1{margin:0;font-size:clamp(32px,4vw,54px);line-height:1.08;letter-spacing:-.04em}
    .hero p{margin:16px 0 0;color:var(--muted);font-size:16px;line-height:1.8;max-width:60ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .hero-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px}
    .metric{padding:16px;border-radius:18px;background:linear-gradient(180deg,#fff,#f6f8ff);border:1px solid rgba(30,48,92,.08)}
    .metric strong{display:block;font-size:20px}
    .metric span{font-size:13px;color:var(--muted)}
    .hero-side{padding:24px;display:flex;flex-direction:column;gap:14px}
    .side-kv{padding:18px;border-radius:18px;background:linear-gradient(135deg, rgba(106,92,255,.10), rgba(24,194,255,.10));border:1px solid rgba(106,92,255,.12)}
    .side-kv h3{margin:0 0 8px;font-size:18px}
    .side-kv p{margin:0;color:var(--muted);line-height:1.7;font-size:14px}
    .mini-tags{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid rgba(30,48,92,.10);font-size:13px;color:#2a3857}
    .section{padding:24px 0}
    .section h2{margin:0 0 14px;font-size:clamp(24px,2.6vw,34px);line-height:1.15}
    .section-lead{margin:0 0 18px;color:var(--muted);line-height:1.8;max-width:78ch}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .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:22px}
    .card h3{margin:0 0 10px;font-size:18px}
    .card p,.card li{color:var(--muted);line-height:1.75}
    .card ul{margin:0;padding-left:18px}
    .icon-dot{
      width:42px;height:42px;border-radius:14px;display:grid;place-items:center;
      background:linear-gradient(135deg, rgba(106,92,255,.14), rgba(255,79,216,.14));
      color:var(--brand);font-weight:900;margin-bottom:14px
    }
    .table-wrap{overflow-x:auto;border-radius:20px;border:1px solid rgba(30,48,92,.10);background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:900px}
    th,td{padding:16px 14px;text-align:left;border-bottom:1px solid rgba(30,48,92,.08);vertical-align:top}
    th{background:#f7f9ff;font-size:14px}
    td{font-size:14px;color:#31415f;line-height:1.7}
    .badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:rgba(20,184,106,.10);color:#0f8d50;font-size:12px;font-weight:700}
    .scorebox{
      display:flex;align-items:center;justify-content:space-between;gap:14px;
      padding:20px;border-radius:18px;background:linear-gradient(135deg,#101b3b,#2f3c78);color:#fff
    }
    .scorebox .stars{font-size:22px;letter-spacing:2px;color:#ffd56a}
    .scorebox small{opacity:.8}
    .steps{counter-reset:step}
    .step{position:relative;padding:22px 20px 20px 64px}
    .step::before{
      counter-increment:step;content:counter(step);
      position:absolute;left:20px;top:20px;width:30px;height:30px;border-radius:999px;
      display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-weight:800
    }
    .compare-card{padding:24px}
    .compare-list{display:grid;gap:12px}
    .compare-row{display:grid;grid-template-columns:1.1fr .9fr;gap:12px;padding:14px 16px;background:#f8faff;border:1px solid rgba(30,48,92,.08);border-radius:14px}
    .compare-row strong{display:block;margin-bottom:4px}
    .faq-item{overflow:hidden}
    .faq-q{
      width:100%;background:none;border:0;padding:18px 20px;display:flex;justify-content:space-between;gap:12px;align-items:center;
      font-size:16px;font-weight:700;color:var(--text);cursor:pointer;text-align:left
    }
    .faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;padding:0 20px}
    .faq-a p{margin:0;padding:0 0 18px;color:var(--muted);line-height:1.8}
    .faq-item.active .faq-a{max-height:180px}
    .faq-item.active .chev{transform:rotate(180deg)}
    .chev{transition:transform .2s ease}
    .quote-card{padding:22px}
    .quote-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
    .quote-role{font-weight:700}
    .quote-stars{color:#ffb400;letter-spacing:1px}
    .article-list{display:grid;gap:14px}
    .article-item{padding:16px 18px;border-radius:16px;background:#fff;border:1px solid rgba(30,48,92,.08);display:flex;justify-content:space-between;gap:12px;align-items:center}
    .article-item span{color:var(--muted);font-size:13px}
    .form-card{padding:24px}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .field{display:flex;flex-direction:column;gap:8px}
    .field.full{grid-column:1 / -1}
    label{font-size:14px;font-weight:700}
    input,select,textarea{
      width:100%;padding:13px 14px;border-radius:14px;border:1px solid rgba(30,48,92,.14);
      background:#fff;color:var(--text);font:inherit;outline:none;transition:border .2s, box-shadow .2s
    }
    input:focus,select:focus,textarea:focus{border-color:rgba(106,92,255,.55);box-shadow:0 0 0 4px rgba(106,92,255,.10)}
    textarea{min-height:120px;resize:vertical}
    .footer{
      margin-top:20px;padding:24px 0 34px;border-top:1px solid rgba(30,48,92,.08);
      background:rgba(255,255,255,.55)
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr 1fr;gap:18px;align-items:start}
    .footer h3{margin:0 0 12px;font-size:18px}
    .footer p,.footer a,.footer li{color:#33415f;line-height:1.8;font-size:14px}
    .footer ul{margin:0;padding-left:18px}
    .contact-badges{display:flex;flex-wrap:wrap;gap:10px}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:50;display:flex;flex-direction:column;gap:10px
    }
    .floating a,.floating button{
      width:48px;height:48px;border-radius:16px;border:1px solid rgba(30,48,92,.10);
      background:#fff;box-shadow:var(--shadow-2);display:grid;place-items:center;cursor:pointer
    }
    .floating .top{font-weight:900;color:var(--brand)}
    .reveal{opacity:0;transform:translateY(16px);transition:opacity .55s ease, transform .55s ease}
    .reveal.show{opacity:1;transform:translateY(0)}
    .mobile-panel{display:none}
    .hero-links{display:flex;gap:12px;flex-wrap:wrap;margin-top:16px;color:var(--muted);font-size:14px}
    .service-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .service-cloud .tag{background:linear-gradient(180deg,#fff,#f6f8ff)}
    .image-band{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .image-band img{border-radius:18px;box-shadow:var(--shadow);border:1px solid rgba(30,48,92,.10)}
    .square-image{max-width:420px}
    @media (max-width: 980px){
      .hero-grid,.grid-4,.grid-3,.grid-2,.footer-grid,.image-band{grid-template-columns:1fr}
      .nav-links,.nav-cta{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-panel{display:none;padding:0 0 16px}
      .mobile-panel.show{display:block}
      .mobile-panel .nav-links{display:flex;flex-direction:column;align-items:flex-start;gap:6px;padding:10px 0 0}
      .mobile-panel .nav-cta{display:flex;flex-wrap:wrap;padding-top:10px}
      .hero-main{padding:26px}
      .hero-metrics{grid-template-columns:1fr}
      .form-grid{grid-template-columns:1fr}
      table{min-width:760px}
    }