:root{
      --bg:#f4f7fb;
      --bg2:#eef4ff;
      --card:#ffffff;
      --text:#10213a;
      --muted:#5d6b86;
      --line:#d9e3f2;
      --primary:#0f4cff;
      --primary2:#2e73ff;
      --accent:#ffb84d;
      --shadow:0 18px 40px rgba(24,54,114,.12);
      --shadow2:0 10px 24px rgba(15,76,255,.12);
      --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;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(15,76,255,.12), transparent 35%),
        radial-gradient(circle at 85% 15%, rgba(255,184,77,.14), transparent 28%),
        linear-gradient(180deg, #f8fbff 0%, #f4f7fb 45%, #f7f9fd 100%);
      line-height:1.7;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    header,main,footer{width:100%}
    .topbar{
      position:sticky;top:0;z-index:30;
      backdrop-filter:blur(14px);
      background:rgba(248,251,255,.82);
      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}
    .brand strong{display:block;font-size:17px;line-height:1.1}
    .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{font-size:14px;color:var(--muted);padding:8px 10px;border-radius:999px;transition:.2s}
    .nav-links a:hover,.nav-links a.active{background:#eaf1ff;color:var(--primary)}
    .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:.2s;white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;box-shadow:var(--shadow2)}
    .btn-ghost{background:#edf3ff;color:var(--primary)}
    .btn:hover{transform:translateY(-1px);filter:saturate(1.04)}
    .menu-btn{display:none;background:#edf3ff;color:var(--primary)}
    .hero{
      padding:34px 0 24px;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.25fr .75fr;gap:22px;align-items:stretch;
    }
    .hero-main,.hero-side,.panel,.card,.quote,.faq-item,.form-card,.info-card,.compare-card,.case-card,.article-card,.metric,.timeline-item,.price-box{
      background:rgba(255,255,255,.86);border:1px solid rgba(217,227,242,.9);
      border-radius:var(--radius);box-shadow:var(--shadow);
    }
    .hero-main{padding:30px;position:relative;overflow:hidden}
    .hero-main:before{
      content:"";position:absolute;inset:auto -50px -60px auto;width:240px;height:240px;border-radius:50%;
      background:radial-gradient(circle, rgba(15,76,255,.18), transparent 68%);
      pointer-events:none;
    }
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:#eaf1ff;color:var(--primary);font-size:13px;font-weight:700}
    h1{margin:16px 0 12px;font-size:clamp(30px,4.5vw,54px);line-height:1.08;letter-spacing:-.02em}
    .lead{margin:0 0 18px;color:var(--muted);font-size:16px;max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px}
    .mini{
      background:linear-gradient(180deg,#f7faff,#eef4ff);border:1px solid #dfe8f8;border-radius:18px;padding:14px;
    }
    .mini b{display:block;font-size:18px}
    .mini span{font-size:12px;color:var(--muted)}
    .hero-side{padding:20px;display:grid;gap:14px}
    .side-note{padding:18px;border-radius:18px;background:linear-gradient(135deg,#0f4cff,#2e73ff);color:#fff}
    .side-note h3{margin:0 0 8px;font-size:18px}
    .side-note p{margin:0;color:rgba(255,255,255,.88);font-size:14px}
    .logo-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
    .section{padding:18px 0}
    .section-title{
      display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:14px
    }
    .section-title h2{margin:0;font-size:28px;line-height:1.15}
    .section-title p{margin:0;color:var(--muted);max-width:70ch}
    .metrics,.services,.compare-grid,.cases,.articles,.reviews,.price-grid,.network-grid,.timeline,.tags{
      display:grid;gap:14px
    }
    .metrics{grid-template-columns:repeat(4,1fr)}
    .metric{padding:18px}
    .metric b{font-size:28px;display:block;line-height:1.1}
    .metric span{color:var(--muted);font-size:13px}
    .two-col{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .card,.quote,.info-card,.compare-card,.case-card,.article-card,.price-box,.form-card,.faq-item,.timeline-item{padding:20px}
    .card h3,.quote h3,.info-card h3,.compare-card h3,.case-card h3,.article-card h3,.form-card h3{margin:0 0 10px;font-size:20px}
    .muted{color:var(--muted)}
    .services{grid-template-columns:repeat(3,1fr)}
    .services .card{min-height:180px}
    .pill-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
    .pill{padding:8px 12px;border-radius:999px;background:#eef4ff;color:#21467f;font-size:13px;border:1px solid #dbe6fb}
    .workflow{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{
      padding:20px;border-radius:20px;background:linear-gradient(180deg,#ffffff,#f4f8ff);border:1px solid #dbe6fb;position:relative
    }
    .step:before{content:attr(data-step);position:absolute;top:14px;right:14px;color:#98aad0;font-weight:800;font-size:28px}
    .step h3{margin:0 0 8px}
    .compare-wrap{overflow:auto;border-radius:22px;border:1px solid #dbe6fb;background:#fff}
    table{width:100%;border-collapse:collapse;min-width:900px}
    th,td{padding:16px 14px;border-bottom:1px solid #e7eef9;text-align:left;vertical-align:top}
    th{background:#f5f8ff;font-size:14px}
    td{color:#30415f}
    .star{color:#ffb400;font-size:18px;letter-spacing:2px}
    .split{display:grid;grid-template-columns:1.1fr .9fr;gap:14px}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    label{display:block;font-size:13px;font-weight:700;margin-bottom:6px;color:#2c3d5e}
    input,select,textarea{
      width:100%;padding:13px 14px;border-radius:14px;border:1px solid #d7e1f2;background:#fff;color:var(--text);outline:none
    }
    textarea{min-height:122px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(15,76,255,.09)}
    .full{grid-column:1/-1}
    .faq{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;
      background:transparent;border:0;padding:18px 20px;font-size:16px;font-weight:700;color:var(--text);cursor:pointer;text-align:left
    }
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease,padding .28s ease;border-top:1px solid transparent}
    .faq-item.open .faq-a{max-height:220px;padding:0 20px 18px;border-top-color:#e7eef9}
    .faq-item.open .chev{transform:rotate(180deg)}
    .chev{transition:.2s;color:var(--primary)}
    .reviews{grid-template-columns:repeat(3,1fr)}
    .quote{position:relative}
    .quote:before{content:"“";position:absolute;top:8px;right:16px;font-size:46px;color:#d9e6ff;line-height:1}
    .quote .role{font-size:13px;color:var(--primary);font-weight:700;margin-bottom:10px}
    .articles{grid-template-columns:repeat(3,1fr)}
    .article-card a{color:var(--primary);font-weight:700}
    .tags{grid-template-columns:repeat(4,1fr)}
    .tagbox{padding:18px;border-radius:20px;background:#fff;border:1px solid #dbe6fb}
    .tagbox .tag{display:inline-flex;margin:6px 8px 0 0;padding:7px 10px;border-radius:999px;background:#eef4ff;color:#21467f;font-size:13px}
    .network-grid{grid-template-columns:repeat(3,1fr)}
    .footer{
      margin-top:18px;padding:26px 0 20px;background:#0e1f3c;color:#d8e4fb
    }
    .footer a{color:#ffffff}
    .footer .grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px}
    .footer small,.footer p,.footer li{color:#c2d0ea}
    .footer ul{padding:0;margin:0;list-style:none;display:grid;gap:8px}
    .home-link{display:inline-flex;align-items:center;gap:8px;color:#0f4cff;font-weight:700}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:40;display:grid;gap:10px
    }
    .float-btn{
      width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:var(--primary);color:#fff;box-shadow:var(--shadow2)
    }
    .chat-panel{
      position:fixed;right:16px;bottom:74px;z-index:39;width:min(320px, calc(100vw - 32px));
      background:#fff;border:1px solid #dbe6fb;border-radius:22px;box-shadow:var(--shadow);padding:14px;display:none
    }
    .chat-panel.open{display:block}
    .chat-panel img{width:100%;border-radius:16px;border:1px solid #e7eef9}
    .reveal{opacity:0;transform:translateY(16px);transition:.6s ease}
    .reveal.show{opacity:1;transform:none}
    .badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:#f2f6ff;color:#31508c;font-size:12px;font-weight:700}
    .gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .gallery img{border-radius:18px;border:1px solid #dbe6fb;box-shadow:var(--shadow)}
    .compact-list{display:grid;gap:10px;margin:0;padding:0;list-style:none}
    .compact-list li{display:flex;gap:10px;align-items:flex-start;color:#30415f}
    .dot{width:9px;height:9px;border-radius:50%;background:var(--accent);margin-top:9px;flex:0 0 auto}
    .mobile-only{display:none}
    @media (max-width: 980px){
      .hero-grid,.split,.two-col,.services,.workflow,.reviews,.articles,.metrics,.network-grid,.footer .grid,.tags{grid-template-columns:1fr 1fr}
      .hero-grid,.split,.two-col{grid-template-columns:1fr}
      .services,.workflow,.reviews,.articles,.metrics,.network-grid,.footer .grid,.tags{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-btn{display:inline-flex}
      .nav.open .nav-links{
        display:flex;position:absolute;left:16px;right:16px;top:68px;flex-direction:column;align-items:flex-start;padding:14px;background:#fff;border:1px solid #dbe6fb;border-radius:18px;box-shadow:var(--shadow)
      }
      .form-grid{grid-template-columns:1fr}
      .desktop-only{display:none}
      .mobile-only{display:block}
    }
    @media (max-width: 640px){
      .section-title{flex-direction:column;align-items:flex-start}
      .hero-main{padding:22px}
      h1{font-size:30px}
      .btn{padding:11px 14px}
      .gallery{grid-template-columns:1fr}
      .nav.open .nav-links{top:64px}
    }