:root{
      --bg:#f6f8fc;
      --panel:#ffffff;
      --panel2:#f0f6ff;
      --text:#162033;
      --muted:#5f6b80;
      --line:#d9e2f1;
      --brand:#1d6cff;
      --brand2:#17b3a5;
      --accent:#ffb84d;
      --shadow:0 18px 40px rgba(18, 39, 73, .08);
      --radius:20px;
      --radius-sm:14px;
      --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(29,108,255,.11), transparent 28%),
        radial-gradient(circle at 85% 15%, rgba(23,179,165,.10), transparent 22%),
        linear-gradient(180deg,#fdfefe 0%,#f4f8ff 42%,#f7f9fd 100%);
    }
    img{display:block;max-width:100%}
    a{color:var(--brand);text-decoration:none}
    a:hover{opacity:.92}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:40;
      backdrop-filter:blur(12px);
      background:rgba(246,248,252,.82);
      border-bottom:1px solid rgba(217,226,241,.7);
    }
    .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 img{width:44px;height:44px;object-fit:contain}
    .brand-text{min-width:0}
    .brand-text strong{display:block;font-size:16px;line-height:1.1}
    .brand-text span{display:block;font-size:12px;color:var(--muted);margin-top:4px}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#20304c;padding:8px 10px;border-radius:10px}
    .nav-links a:hover{background:#eaf2ff}
    .nav-cta{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:11px 16px;font-weight:700;font-size:14px;cursor:pointer;
      transition:.2s ease;
      box-shadow:none;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),#3e87ff);color:#fff;box-shadow:0 12px 24px rgba(29,108,255,.18)}
    .btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 32px rgba(29,108,255,.22)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-ghost:hover{background:#f4f8ff}
    .menu-toggle{display:none}
    .hero{
      padding:36px 0 26px;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch;
    }
    .hero-main,.hero-side,.card,.section-card,.faq-item,.review-card,.article-card,.case-card,.form-card{
      background:rgba(255,255,255,.86);
      border:1px solid rgba(217,226,241,.85);
      box-shadow:var(--shadow);
      border-radius:var(--radius);
    }
    .hero-main{padding:32px;position:relative;overflow:hidden}
    .hero-main:before,.hero-main:after{
      content:"";position:absolute;border-radius:50%;background:rgba(29,108,255,.08);filter:blur(8px)
    }
    .hero-main:before{width:210px;height:210px;right:-70px;top:-55px}
    .hero-main:after{width:180px;height:180px;right:60px;bottom:-85px;background:rgba(23,179,165,.10)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;background:#eaf2ff;border-radius:999px;color:#1f4ea8;font-size:13px;font-weight:700}
    h1{margin:16px 0 12px;font-size:clamp(30px,4vw,52px);line-height:1.06;letter-spacing:-.02em}
    .hero-desc{margin:0;color:var(--muted);font-size:16px;line-height:1.8;max-width:58ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
    .point{padding:14px;border-radius:16px;background:linear-gradient(180deg,#f8fbff,#eef5ff);border:1px solid #dbe7fb}
    .point strong{display:block;font-size:18px}
    .point span{display:block;font-size:13px;color:var(--muted);margin-top:6px;line-height:1.5}
    .hero-side{padding:22px;display:flex;flex-direction:column;gap:14px}
    .hero-side .mini{
      padding:16px;border-radius:18px;background:linear-gradient(135deg,#eff6ff,#f9fcff);
      border:1px solid #d9e6fb
    }
    .mini h3{margin:0 0 8px;font-size:16px}
    .mini p{margin:0;color:var(--muted);line-height:1.7;font-size:14px}
    .metrics{padding:10px 0 6px}
    .section{padding:18px 0 2px}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);max-width:58ch;line-height:1.7}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .card{padding:20px}
    .card h3,.section-card h3{margin:0 0 10px;font-size:18px}
    .card p,.section-card p{margin:0;color:var(--muted);line-height:1.75}
    .badge{display:inline-flex;align-items:center;gap:8px;padding:7px 11px;border-radius:999px;background:#eef7ff;color:#2156ba;font-size:12px;font-weight:700;margin-bottom:12px}
    .section-card{padding:22px}
    .service-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:14px}
    .service-item{padding:14px;border-radius:16px;background:#fff;border:1px solid #e2eaf7}
    .service-item strong{display:block;margin-bottom:6px}
    .service-item span{display:block;color:var(--muted);font-size:13px;line-height:1.7}
    .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:18px;border-radius:18px;background:linear-gradient(180deg,#fff,#f6faff);border:1px solid #dfe8f6;position:relative}
    .step .num{width:34px;height:34px;border-radius:12px;background:linear-gradient(135deg,var(--brand),#55a0ff);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:12px}
    .table-wrap{overflow-x:auto;border-radius:18px;border:1px solid #dfe6f3;background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:16px 14px;border-bottom:1px solid #e8eef7;text-align:left;vertical-align:top}
    th{background:#f4f8ff;color:#1d2f52;font-size:14px}
    td{color:#35455f;font-size:14px;line-height:1.65}
    .check{color:#118a5a;font-weight:700}
    .star{color:#ff9d18;font-weight:800}
    .split{display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:9px 12px;background:#fff;border:1px solid #dde7f6;border-radius:999px;color:#36506f;font-size:13px}
    .price-list{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .price{padding:18px;border-radius:18px;background:linear-gradient(180deg,#fff,#f3f8ff);border:1px solid #dbe6f7}
    .price strong{display:block;font-size:18px;margin-bottom:8px}
    .price em{display:block;font-style:normal;color:#1d6cff;font-weight:800;font-size:24px;margin:8px 0}
    .faq{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 20px;background:transparent;border:0;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}
    .faq-item.open .faq-a{max-height:180px;padding-bottom:18px}
    .faq-a p{margin:0;color:var(--muted);line-height:1.8}
    .reviews,.cases,.articles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review-card,.case-card,.article-card{padding:18px}
    .review-card .who{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
    .review-card .who strong{font-size:16px}
    .review-card .who span{font-size:13px;color:var(--muted)}
    .quote{color:#33425d;line-height:1.8;margin:0}
    .case-card .thumb,.article-card .thumb{
      border-radius:16px;overflow:hidden;border:1px solid #dfe7f4;background:#f4f8ff;margin-bottom:14px
    }
    .case-card img,.article-card img{width:100%;height:auto}
    .form-card{padding:22px}
    form{display:grid;gap:14px}
    .fields{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    label{display:grid;gap:8px;font-size:14px;color:#26344e;font-weight:700}
    input,select,textarea{
      width:100%;border:1px solid #d8e2f1;border-radius:14px;background:#fff;color:var(--text);
      padding:13px 14px;font:inherit;outline:none;transition:.2s ease
    }
    input:focus,select:focus,textarea:focus{border-color:#7fb0ff;box-shadow:0 0 0 4px rgba(29,108,255,.10)}
    textarea{min-height:130px;resize:vertical}
    .submit-row{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
    .helper{color:var(--muted);font-size:13px;line-height:1.7}
    .floating{
      position:fixed;right:16px;bottom:18px;z-index:50;display:flex;flex-direction:column;gap:10px
    }
    .float-btn{
      width:52px;height:52px;border-radius:18px;display:flex;align-items:center;justify-content:center;
      background:linear-gradient(135deg,var(--brand),#3f92ff);color:#fff;border:0;box-shadow:0 14px 26px rgba(29,108,255,.24);cursor:pointer
    }
    .float-link{
      width:52px;height:52px;border-radius:18px;display:flex;align-items:center;justify-content:center;
      background:#fff;border:1px solid #d8e3f2;box-shadow:var(--shadow)
    }
    footer{margin-top:24px;background:#eef4fb;color:#24324a;border-top:1px solid #d7e2f1}
    .footer-inner{padding:24px 0 18px;display:grid;grid-template-columns:1.1fr .9fr;gap:18px}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{color:#29456f;padding:8px 10px;background:#fff;border:1px solid #d9e5f3;border-radius:999px}
    .copyright{padding:14px 0 20px;color:#57708f;font-size:13px;border-top:1px solid #dbe5f1}
    .reveal{opacity:0;transform:translateY(18px);transition:all .5s ease}
    .reveal.in{opacity:1;transform:none}
    .home-link{font-weight:700}
    .contact-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
    .contact-badges span{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid #dce6f3;color:#35506f;font-size:13px}
    .service-network{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .network-card{padding:18px;border-radius:18px;background:#fff;border:1px solid #dbe6f6}
    .network-card h3{margin:0 0 8px}
    @media (max-width: 980px){
      .hero-grid,.split,.footer-inner{grid-template-columns:1fr}
      .grid-4,.grid-3,.reviews,.cases,.articles,.price-list,.timeline,.service-network{grid-template-columns:repeat(2,1fr)}
      .hero-points,.service-list,.fields{grid-template-columns:repeat(2,1fr)}
      .nav-links{display:none}
      .menu-toggle{display:inline-flex}
      .nav.open .nav-links{
        display:flex;position:absolute;left:16px;right:16px;top:70px;flex-direction:column;align-items:flex-start;
        background:#fff;border:1px solid #dbe5f4;border-radius:18px;padding:14px;box-shadow:var(--shadow)
      }
      .nav.open{position:relative}
    }
    @media (max-width: 640px){
      .container{width:min(var(--container), calc(100% - 22px))}
      .hero{padding-top:20px}
      .hero-main,.hero-side,.card,.section-card,.form-card{padding:18px}
      .grid-4,.grid-3,.reviews,.cases,.articles,.price-list,.timeline,.service-network,.hero-points,.service-list,.fields{grid-template-columns:1fr}
      .section-head{align-items:flex-start;flex-direction:column}
      .nav-cta .btn-ghost{display:none}
      h1{font-size:30px}
    }