:root{
      --bg:#f6f7fb;
      --panel:#ffffff;
      --panel-2:#f3f6ff;
      --line:#dfe6f3;
      --text:#172033;
      --muted:#5d6b84;
      --brand:#335cff;
      --brand2:#18b7a7;
      --brand3:#ff8a4c;
      --shadow:0 18px 50px rgba(29, 44, 79, .10);
      --radius:22px;
      --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",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 10% 10%, rgba(51,92,255,.08), transparent 24%),
        radial-gradient(circle at 90% 12%, rgba(24,183,167,.10), transparent 22%),
        radial-gradient(circle at 30% 92%, rgba(255,138,76,.08), transparent 24%),
        var(--bg);
      line-height:1.65;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .topbar{
      position:sticky; top:0; z-index:50;
      backdrop-filter: blur(14px);
      background:rgba(246,247,251,.82);
      border-bottom:1px solid rgba(223,230,243,.75);
    }
    .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:44px;height:44px;object-fit:contain;border-radius:12px;background:#fff;box-shadow:0 8px 24px rgba(0,0,0,.08)}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    .navlinks{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .navlinks a{font-size:14px;color:var(--muted)}
    .navlinks a:hover{color:var(--brand)}
    .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:11px 16px;
      font-weight:700; font-size:14px; transition:.25s ease; cursor:pointer;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),#5f7cff); color:#fff; box-shadow:0 12px 28px rgba(51,92,255,.24)}
    .btn-primary:hover{transform:translateY(-1px); box-shadow:0 16px 34px rgba(51,92,255,.28)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
    .menu-btn{display:none}
    .hero{
      padding:34px 0 18px;
    }
    .hero-grid{
      display:grid; grid-template-columns:1.2fr .8fr; gap:18px; align-items:stretch;
    }
    .hero-main,.hero-side,.card,.section-card,.faq-item,.form-card,.review-card,.info-card,.price-card,.timeline-item,.compare-card{
      background:rgba(255,255,255,.88);
      border:1px solid rgba(223,230,243,.9);
      box-shadow:var(--shadow);
      border-radius:var(--radius);
    }
    .hero-main{padding:34px; position:relative; overflow:hidden}
    .hero-main:before,.hero-main:after{
      content:""; position:absolute; border-radius:999px; filter:blur(0);
      pointer-events:none;
    }
    .hero-main:before{width:220px;height:220px;background:radial-gradient(circle, rgba(51,92,255,.18), transparent 68%); right:-70px; top:-50px}
    .hero-main:after{width:180px;height:180px;background:radial-gradient(circle, rgba(24,183,167,.18), transparent 68%); left:-40px; bottom:-60px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:linear-gradient(135deg,rgba(51,92,255,.08),rgba(24,183,167,.08));color:var(--brand);font-weight:700;font-size:13px}
    h1{margin:16px 0 12px;font-size:clamp(32px,5vw,56px);line-height:1.06;letter-spacing:-.02em}
    .lead{font-size:18px;color:var(--muted);max-width:60ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .meta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .meta-pill{padding:10px 14px;border-radius:999px;background:#f8faff;border:1px solid var(--line);font-size:13px;color:var(--muted)}
    .hero-side{padding:22px; display:grid; gap:14px}
    .hero-side .mini{
      border-radius:18px; background:linear-gradient(180deg,#fff, #f8fbff);
      border:1px solid var(--line); padding:16px;
    }
    .mini strong{display:block;font-size:18px;margin-bottom:6px}
    .mini p{margin:0;color:var(--muted);font-size:14px}
    .metrics{padding:14px 0 0}
    .section{padding:18px 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:62ch}
    .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,.card,.section-card,.compare-card,.price-card,.review-card,.faq-item,.form-card,.info-card,.timeline-item{padding:22px}
    .metric{position:relative;overflow:hidden}
    .metric:after{content:"";position:absolute;inset:auto -18px -18px auto;width:96px;height:96px;border-radius:30px;background:linear-gradient(135deg,rgba(51,92,255,.16),rgba(24,183,167,.16));transform:rotate(15deg)}
    .metric b{display:block;font-size:30px}
    .metric span{display:block;color:var(--muted);margin-top:6px}
    .chip-row{display:flex;flex-wrap:wrap;gap:10px}
    .chip{padding:9px 12px;border-radius:999px;background:#f8fbff;border:1px solid var(--line);font-size:13px;color:#41506d}
    .service-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .service{padding:18px;border-radius:18px;border:1px solid var(--line);background:linear-gradient(180deg,#fff,#f8fbff)}
    .service h3,.card h3,.section-card h3,.price-card h3,.compare-card h3,.info-card h3{margin:0 0 8px;font-size:18px}
    .service p,.card p,.section-card p,.price-card p,.compare-card p,.info-card p{margin:0;color:var(--muted)}
    .steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .step{padding:20px;border-radius:20px;border:1px solid var(--line);background:#fff;position:relative}
    .step:before{counter-increment:step;content:counter(step);position:absolute;top:16px;right:16px;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,rgba(51,92,255,.12),rgba(24,183,167,.12));color:var(--brand);font-weight:800}
    .step strong{display:block;margin-bottom:8px}
    .table-wrap{overflow:auto;border-radius:20px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:16px 18px;text-align:left;border-bottom:1px solid #edf1f7;vertical-align:top}
    th{background:#f7f9fe;color:#24304c;font-size:14px}
    td{color:#42506a;font-size:14px}
    .rating{font-size:18px;font-weight:800;color:#ff8a4c}
    .faq-list{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{
      width:100%; border:0; background:transparent; color:var(--text); text-align:left;
      padding:18px 20px; display:flex; align-items:center; justify-content:space-between; gap:16px;
      font:inherit; cursor:pointer;
    }
    .faq-q strong{font-size:16px}
    .faq-a{max-height:0; overflow:hidden; transition:max-height .28s ease, padding .28s ease; padding:0 20px}
    .faq-item.open .faq-a{padding:0 20px 18px; max-height:180px}
    .faq-icon{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#f2f5ff;color:var(--brand);flex:0 0 auto}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review-card .name{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
    .stars{color:#ff9d3b;letter-spacing:2px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .form-grid .full{grid-column:1/-1}
    label{display:block;font-size:14px;font-weight:700;margin-bottom:8px}
    input,select,textarea{
      width:100%; border:1px solid var(--line); border-radius:14px; background:#fff;
      padding:13px 14px; font:inherit; color:var(--text); outline:none;
    }
    input:focus,select:focus,textarea:focus{border-color:rgba(51,92,255,.6); box-shadow:0 0 0 4px rgba(51,92,255,.08)}
    textarea{min-height:120px; resize:vertical}
    .footer{
      margin-top:18px; padding:28px 0 26px; border-top:1px solid rgba(223,230,243,.9);
      background:linear-gradient(180deg,rgba(255,255,255,.55),rgba(248,250,255,.85));
      color:#20304f;
    }
    .footer a{color:#2746b8}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
    .footer small{color:#66758f}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px}
    .floating{
      position:fixed; right:16px; bottom:16px; z-index:60; display:grid; gap:10px;
    }
    .float-btn{
      width:54px;height:54px;border-radius:50%;display:grid;place-items:center;
      box-shadow:0 16px 30px rgba(0,0,0,.16); color:#fff; font-weight:800; border:0;
      background:linear-gradient(135deg,var(--brand),#5f7cff); cursor:pointer;
    }
    .float-panel{
      position:fixed; right:16px; bottom:84px; z-index:60; width:min(320px, calc(100vw - 32px));
      background:#fff; border:1px solid var(--line); border-radius:20px; box-shadow:var(--shadow);
      padding:16px; display:none;
    }
    .float-panel.open{display:block}
    .float-panel .qrcode{width:120px;border-radius:16px;border:1px solid var(--line)}
    .service-network,.tag-cloud,.article-list,.timeline,.price-grid,.about-grid{display:grid;gap:16px}
    .timeline{grid-template-columns:repeat(4,1fr)}
    .timeline-item{position:relative}
    .timeline-item strong{display:block;margin-bottom:8px}
    .article-list{grid-template-columns:repeat(3,1fr)}
    .article{padding:18px;border-radius:18px;border:1px solid var(--line);background:#fff}
    .article time{display:block;color:var(--muted);font-size:13px;margin-bottom:8px}
    .article h3{margin:0 0 8px;font-size:17px}
    .image-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .image-row img,.shot-grid img{border-radius:18px;border:1px solid var(--line);box-shadow:var(--shadow)}
    .shot-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
    .shot-grid .panel{padding:20px;border-radius:20px;border:1px solid var(--line);background:#fff}
    .reveal{opacity:0;transform:translateY(16px);transition:.6s ease}
    .reveal.show{opacity:1;transform:none}
    .mobile-only{display:none}
    @media (max-width: 1024px){
      .hero-grid,.grid-4,.grid-3,.reviews,.article-list,.timeline,.footer-grid,.grid-2,.steps{grid-template-columns:1fr 1fr}
      .image-row,.shot-grid,.service-list{grid-template-columns:1fr 1fr}
      .grid-4 .metric:nth-child(4){grid-column:1/-1}
    }
    @media (max-width: 760px){
      .navlinks,.nav-actions .btn-ghost{display:none}
      .menu-btn{display:inline-flex}
      .mobile-only{display:block}
      .hero-grid,.grid-4,.grid-3,.reviews,.article-list,.timeline,.footer-grid,.grid-2,.steps,.image-row,.shot-grid,.service-list,.form-grid{grid-template-columns:1fr}
      .hero-main{padding:24px}
      .section-head{flex-direction:column;align-items:flex-start}
      .lead{font-size:16px}
      .table-wrap{margin-right:-16px}
      .container{width:min(var(--container), calc(100% - 24px))}
      .floating{right:12px;bottom:12px}
      .float-panel{right:12px;bottom:78px}
    }
    .mobile-menu{
      display:none; padding:0 0 16px;
    }
    .mobile-menu.open{display:block}
    .mobile-menu a{
      display:block;padding:12px 0;border-top:1px solid rgba(223,230,243,.9); color:var(--muted)
    }