:root{
      --bg:#f5f8ff;
      --bg2:#eef4ff;
      --card:#ffffff;
      --card2:#f8fbff;
      --text:#183153;
      --muted:#5f718c;
      --line:#d9e5ff;
      --brand:#1455d1;
      --brand2:#22a1ff;
      --accent:#0f3f9e;
      --shadow:0 18px 50px rgba(16, 53, 129, .10);
      --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(20,85,209,.10), transparent 30%),
        radial-gradient(circle at 80% 0%, rgba(34,161,255,.12), transparent 26%),
        linear-gradient(180deg, #fbfdff 0%, var(--bg) 100%);
    }
    a{color:var(--brand);text-decoration:none}
    img{max-width:100%;display:block}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .site-header{
      position:sticky; top:0; z-index:80;
      backdrop-filter:blur(14px);
      background:rgba(248,251,255,.82);
      border-bottom:1px solid rgba(217,229,255,.85);
    }
    .nav{
      display:flex; align-items:center; justify-content:space-between; gap:16px;
      min-height:74px; padding:10px 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 22px rgba(20,85,209,.12)}
    .brand-text{display:flex;flex-direction:column;min-width:0}
    .brand-text strong{font-size:18px;line-height:1.1}
    .brand-text span{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .nav-links{display:flex;flex-wrap:wrap;align-items:center;gap:8px;justify-content:flex-end}
    .nav-links a,.nav-links button{
      border:1px solid var(--line); background:#fff; color:var(--text);
      padding:10px 14px; border-radius:999px; font-size:14px; cursor:pointer;
      transition:.25s ease; box-shadow:0 6px 18px rgba(20,85,209,.05);
    }
    .nav-links a:hover,.nav-links button:hover{transform:translateY(-2px); border-color:#b8cdfa; box-shadow:0 12px 24px rgba(20,85,209,.10)}
    .menu-toggle{display:none}
    .hero{
      padding:34px 0 20px;
      position:relative;
      overflow:hidden;
    }
    .hero-inner{
      display:grid; grid-template-columns:1.15fr .85fr; gap:24px; align-items:stretch;
      background:linear-gradient(135deg, rgba(20,85,209,.95), rgba(15,63,158,.96));
      color:#fff; border-radius:30px; padding:34px; box-shadow:0 24px 60px rgba(20,85,209,.22);
      position:relative;
    }
    .hero-inner:before,.hero-inner:after{
      content:""; position:absolute; border-radius:50%; pointer-events:none;
      background:rgba(255,255,255,.10);
    }
    .hero-inner:before{width:220px;height:220px;right:-60px;top:-70px}
    .hero-inner:after{width:160px;height:160px;left:-40px;bottom:-60px}
    .hero-copy{position:relative;z-index:1}
    .eyebrow{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 12px; border-radius:999px; background:rgba(255,255,255,.12); color:#dfe9ff;
      font-size:13px; letter-spacing:.02em;
    }
    h1{margin:16px 0 12px; font-size:clamp(30px, 4vw, 52px); line-height:1.1}
    .hero-copy p{margin:0 0 22px; color:#dce8ff; font-size:16px; line-height:1.8; max-width:58ch}
    .hero-actions{display:flex; flex-wrap:wrap; gap:12px; margin:18px 0 18px}
    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:8px;
      padding:13px 18px; border-radius:14px; border:1px solid transparent; font-weight:700;
      transition:.25s ease; cursor:pointer;
    }
    .btn-primary{background:#fff; color:var(--accent); box-shadow:0 14px 30px rgba(0,0,0,.12)}
    .btn-secondary{background:transparent; border-color:rgba(255,255,255,.30); color:#fff}
    .btn:hover{transform:translateY(-2px)}
    .hero-tags{display:flex; flex-wrap:wrap; gap:10px; margin-top:10px}
    .tag{padding:8px 11px; border-radius:999px; background:rgba(255,255,255,.12); color:#eef5ff; font-size:13px}
    .hero-panel{
      position:relative; z-index:1;
      background:rgba(255,255,255,.10); border:1px solid rgba(255,255,255,.18);
      border-radius:24px; padding:22px; backdrop-filter:blur(10px);
      display:grid; gap:14px; align-content:start;
    }
    .mini-stats{display:grid; grid-template-columns:repeat(2,1fr); gap:12px}
    .mini{
      background:rgba(255,255,255,.12); border:1px solid rgba(255,255,255,.14); border-radius:18px;
      padding:14px;
    }
    .mini strong{display:block; font-size:20px}
    .mini span{font-size:12px;color:#dce8ff}
    .panel-list{display:grid; gap:10px; margin:0; padding:0; list-style:none}
    .panel-list li{
      display:flex; gap:10px; align-items:flex-start; color:#f2f6ff; font-size:14px; line-height:1.6
    }
    .panel-list i{font-style:normal; color:#9dd1ff}
    main{padding:18px 0 30px}
    section{scroll-margin-top:92px; margin-top:20px}
    .section-card{
      background:var(--card); border:1px solid rgba(217,229,255,.95); border-radius:28px; box-shadow:var(--shadow);
      padding:28px;
    }
    .section-head{display:flex; justify-content:space-between; gap:14px; align-items:end; margin-bottom:20px}
    .section-head h2{margin:0; font-size:clamp(22px,2.4vw,32px); line-height:1.15}
    .section-head p{margin:0; color:var(--muted); max-width:64ch; line-height:1.8}
    .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}
    .metric,.service-card,.case-card,.review-card,.article-card,.timeline-card,.faq-item,.info-card{
      background:linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
      border:1px solid var(--line); border-radius:22px; padding:18px; box-shadow:0 8px 20px rgba(16,53,129,.05);
      transition:.25s ease;
    }
    .metric:hover,.service-card:hover,.case-card:hover,.review-card:hover,.article-card:hover,.timeline-card:hover{transform:translateY(-4px); box-shadow:0 16px 34px rgba(16,53,129,.10)}
    .metric strong{display:block; font-size:28px; color:var(--brand)}
    .metric span,.service-card p,.case-card p,.review-card p,.article-card p,.timeline-card p,.info-card p{color:var(--muted); line-height:1.75; margin:8px 0 0}
    .metric small{display:block; color:var(--text); margin-top:6px; font-weight:700}
    .service-card h3,.case-card h3,.review-card h3,.article-card h3,.timeline-card h3,.info-card h3{margin:0 0 8px; font-size:18px}
    .pill-row{display:flex; flex-wrap:wrap; gap:8px; margin-top:12px}
    .pill{font-size:12px; padding:7px 10px; border-radius:999px; background:#edf4ff; color:#1d56cf; border:1px solid #d7e4ff}
    .media-row{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .media-card{border-radius:22px; overflow:hidden; border:1px solid var(--line); background:#fff; box-shadow:0 10px 24px rgba(16,53,129,.06)}
    .media-card img{width:100%; aspect-ratio:4/3; object-fit:cover}
    .media-card .cap{padding:14px 16px; color:var(--muted)}
    .workflow{display:grid; grid-template-columns:repeat(5,1fr); gap:14px}
    .step{padding:18px; border-radius:20px; background:#fff; border:1px solid var(--line); position:relative}
    .step b{display:inline-flex; width:30px; height:30px; align-items:center; justify-content:center; border-radius:999px; background:#e9f1ff; color:var(--brand); margin-bottom:10px}
    .table-wrap{overflow:auto; border:1px solid var(--line); border-radius:22px; background:#fff}
    table{width:100%; border-collapse:collapse; min-width:760px}
    th,td{padding:14px 16px; text-align:left; border-bottom:1px solid #edf2ff; vertical-align:top; line-height:1.7}
    th{background:#f2f7ff; color:var(--text)}
    td{color:var(--muted)}
    .rating-box{
      background:linear-gradient(135deg, #0f3f9e 0%, #1b67db 60%, #22a1ff 100%);
      color:#fff; border-radius:24px; padding:22px; display:grid; gap:14px;
    }
    .rating-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:14px}
    .rating-card{
      background:rgba(255,255,255,.12); border:1px solid rgba(255,255,255,.16); border-radius:18px; padding:14px
    }
    .rating-card strong{display:block; font-size:22px}
    .rating-card span{font-size:13px; color:#e8f2ff}
    .compare-note{color:#dfe9ff; line-height:1.8}
    .tag-cloud{display:flex; flex-wrap:wrap; gap:10px}
    .tag-cloud a,.tag-cloud span{
      padding:9px 12px; border-radius:999px; border:1px solid #dbe7ff; background:#f6f9ff; color:#264e99; font-size:13px
    }
    .price-list{display:grid; gap:12px}
    .price-item{
      display:flex; justify-content:space-between; gap:12px; padding:14px 16px; border-radius:18px;
      background:#f8fbff; border:1px solid var(--line)
    }
    .price-item strong{display:block}
    .price-item span{color:var(--muted); font-size:13px}
    .faq-list{display:grid; gap:12px}
    .faq-item summary{cursor:pointer; list-style:none; font-weight:700; color:var(--text)}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item div{padding-top:10px; color:var(--muted); line-height:1.8}
    .testimonial-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .stars{color:#f3b900; letter-spacing:2px; font-size:14px; margin-bottom:10px}
    .footer{
      margin-top:20px;
      background:#0f3f9e; color:#eaf2ff; border-top:1px solid rgba(255,255,255,.12)
    }
    .footer a{color:#fff}
    .footer .section-card{background:transparent; border:none; box-shadow:none; padding:26px 0}
    .footer-grid{display:grid; grid-template-columns:1.1fr .9fr .9fr; gap:18px}
    .footer h3,.footer h4{margin:0 0 10px; color:#fff}
    .footer p,.footer li,.footer span{color:#dce8ff; line-height:1.8}
    .footer ul{margin:0; padding-left:18px}
    .contact-grid{display:grid; grid-template-columns:1.1fr .9fr; gap:16px}
    .form{
      display:grid; gap:12px; background:#fff; border:1px solid var(--line); border-radius:22px; padding:18px
    }
    .form-row{display:grid; grid-template-columns:repeat(2,1fr); gap:12px}
    input,select,textarea{
      width:100%; border:1px solid #cfdcf7; border-radius:14px; padding:12px 14px; font:inherit; color:var(--text); background:#fff;
      outline:none; transition:.2s ease
    }
    textarea{min-height:120px; resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#7fa8ff; box-shadow:0 0 0 3px rgba(34,161,255,.12)}
    .form button{border:none}
    .sticky-actions{
      position:fixed; right:16px; bottom:16px; z-index:90; display:grid; gap:10px
    }
    .float-btn{
      display:inline-flex; align-items:center; justify-content:center; width:52px; height:52px; border-radius:16px;
      background:linear-gradient(135deg, var(--brand), var(--brand2)); color:#fff; box-shadow:0 14px 30px rgba(20,85,209,.28);
      border:none; cursor:pointer; transition:.25s ease
    }
    .float-btn:hover{transform:translateY(-3px)}
    .kefu-box{
      position:fixed; left:16px; bottom:16px; z-index:90;
      width:min(280px, calc(100vw - 32px)); background:#fff; border:1px solid var(--line); border-radius:20px;
      box-shadow:var(--shadow); overflow:hidden
    }
    .kefu-head{background:linear-gradient(135deg, #0f3f9e, #1b67db); color:#fff; padding:12px 14px; display:flex; justify-content:space-between; align-items:center; gap:12px}
    .kefu-body{padding:14px; display:grid; gap:10px}
    .kefu-body img{width:100%; border-radius:16px; border:1px solid var(--line)}
    .kefu-body small{color:var(--muted); line-height:1.6}
    .reveal{opacity:0; transform:translateY(18px); transition:.6s ease}
    .reveal.in{opacity:1; transform:none}
    @media (max-width: 1024px){
      .grid-4,.grid-3,.testimonial-grid,.footer-grid,.contact-grid,.media-row,.workflow,.rating-grid{grid-template-columns:repeat(2,1fr)}
      .hero-inner{grid-template-columns:1fr}
    }
    @media (max-width: 768px){
      .menu-toggle{display:inline-flex}
      .nav-links{display:none; width:100%; padding-bottom:12px}
      .nav-links.open{display:flex}
      .nav{flex-wrap:wrap}
      .grid-4,.grid-3,.grid-2,.testimonial-grid,.footer-grid,.contact-grid,.media-row,.workflow,.rating-grid,.form-row{grid-template-columns:1fr}
      .hero-inner,.section-card{padding:20px}
      .hero{padding-top:20px}
      .hero-actions,.hero-tags{gap:10px}
      .container{width:min(var(--container), calc(100% - 22px))}
      .kefu-box{display:none}
    }