:root{
      --bg:#f6f7fb;
      --bg2:#eef2ff;
      --card:#ffffff;
      --text:#1f2937;
      --muted:#5b6472;
      --line:#e5e7ef;
      --accent:#7c3aed;
      --accent2:#06b6d4;
      --accent3:#f59e0b;
      --shadow:0 18px 48px rgba(32, 41, 62, .10);
      --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,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(124,58,237,.10), transparent 26%),
        radial-gradient(circle at top right, rgba(6,182,212,.10), transparent 24%),
        linear-gradient(180deg, #ffffff 0%, #f7f8fc 18%, #f5f7fb 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px, var(--container)); margin:0 auto}
    .topbar{
      position:sticky; top:0; z-index:50;
      backdrop-filter:saturate(160%) blur(14px);
      background:rgba(255,255,255,.78);
      border-bottom:1px solid rgba(229,231,239,.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;border-radius:12px;background:#fff;box-shadow:0 8px 24px rgba(0,0,0,.08)}
    .brand strong{display:block;font-size:16px;line-height:1.2}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    .nav-links{display:flex; align-items:center; gap:16px; flex-wrap:wrap; justify-content:flex-end}
    .nav-links a{font-size:14px;color:#334155;padding:8px 10px;border-radius:10px;transition:.2s}
    .nav-links a:hover,.nav-links a:focus{background:#f1f5f9;color:#111827}
    .nav-actions{display:flex; align-items:center; gap:10px}
    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:8px;
      padding:11px 16px; border-radius:999px; border:1px solid transparent;
      font-weight:600; transition:.22s ease; cursor:pointer; white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--accent),#4f46e5); color:#fff; box-shadow:0 12px 24px rgba(124,58,237,.24)}
    .btn-primary:hover{transform:translateY(-2px); box-shadow:0 18px 32px rgba(124,58,237,.28)}
    .btn-ghost{background:#fff; border-color:var(--line); color:#111827}
    .btn-ghost:hover{transform:translateY(-2px); box-shadow:0 10px 22px rgba(15,23,42,.08)}
    .menu-toggle{display:none; width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff}
    .menu-toggle span{display:block;width:18px;height:2px;background:#334155;margin:4px auto;border-radius:2px}
    .hero{padding:34px 0 18px}
    .hero-shell{
      position:relative; overflow:hidden;
      border:1px solid rgba(255,255,255,.7);
      border-radius:28px;
      background:
        linear-gradient(135deg, rgba(124,58,237,.12), rgba(6,182,212,.08)),
        linear-gradient(180deg, #ffffff 0%, #f8faff 100%);
      box-shadow:var(--shadow);
    }
    .hero-shell::before,.hero-shell::after{
      content:""; position:absolute; border-radius:999px; filter:blur(2px); pointer-events:none;
      background:linear-gradient(135deg, rgba(124,58,237,.35), rgba(6,182,212,.22), rgba(245,158,11,.18));
      opacity:.55;
    }
    .hero-shell::before{width:240px;height:240px;right:-70px;top:-70px}
    .hero-shell::after{width:180px;height:180px;left:-60px;bottom:-40px}
    .hero-grid{
      display:grid; grid-template-columns:1.15fr .85fr; gap:24px; align-items:stretch;
      padding:34px;
    }
    .kicker{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 12px; border-radius:999px; background:rgba(255,255,255,.72);
      border:1px solid rgba(229,231,239,.9); color:#334155; font-size:13px;
    }
    h1{margin:16px 0 14px; font-size:clamp(30px,5vw,50px); line-height:1.08; letter-spacing:-.02em}
    .lead{font-size:16px; line-height:1.8; color:#374151; max-width:58ch}
    .hero-actions{display:flex; flex-wrap:wrap; gap:12px; margin:24px 0 18px}
    .hero-points{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:12px; margin-top:20px}
    .mini{
      background:rgba(255,255,255,.82); border:1px solid rgba(229,231,239,.85);
      border-radius:18px; padding:14px; box-shadow:0 10px 24px rgba(15,23,42,.04)
    }
    .mini strong{display:block;font-size:18px;margin-bottom:5px}
    .mini span{font-size:13px;color:var(--muted);line-height:1.6}
    .hero-panel{
      display:flex; flex-direction:column; gap:14px; justify-content:space-between;
      padding:18px; border-radius:24px; background:rgba(255,255,255,.72);
      border:1px solid rgba(229,231,239,.9)
    }
    .metric-grid{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:12px}
    .metric{
      background:linear-gradient(180deg,#fff,#f8fafc);
      border:1px solid var(--line); border-radius:18px; padding:16px; box-shadow:0 10px 24px rgba(15,23,42,.04)
    }
    .metric b{display:block;font-size:24px;line-height:1.1;color:#111827}
    .metric p{margin:8px 0 0;font-size:13px;color:var(--muted);line-height:1.6}
    .note-card{
      padding:16px; border-radius:18px; background:linear-gradient(135deg, rgba(124,58,237,.09), rgba(6,182,212,.08));
      border:1px solid rgba(124,58,237,.14)
    }
    .note-card h3{margin:0 0 8px;font-size:16px}
    .note-card p{margin:0;color:#455163;font-size:14px;line-height:1.7}
    section{padding:18px 0}
    .section-head{display:flex; justify-content:space-between; align-items:flex-end; gap:16px; margin-bottom:16px}
    .section-head h2{margin:0;font-size:clamp(22px,3vw,34px); line-height:1.15}
    .section-head p{margin:0;color:var(--muted);max-width:66ch;line-height:1.7}
    .grid-3{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px}
    .grid-4{display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:16px}
    .card{
      background:var(--card); border:1px solid var(--line); border-radius:var(--radius);
      box-shadow:0 10px 28px rgba(15,23,42,.05); padding:20px; transition:.22s ease
    }
    .card:hover{transform:translateY(-4px); box-shadow:0 18px 36px rgba(15,23,42,.09)}
    .card h3{margin:0 0 10px;font-size:18px}
    .card p, .card li{color:var(--muted); line-height:1.75}
    .list-clean{margin:0; padding-left:18px}
    .tags{display:flex; flex-wrap:wrap; gap:10px}
    .tag{
      padding:9px 12px; border-radius:999px; background:#fff; border:1px solid var(--line);
      font-size:13px; color:#334155
    }
    .service-grid{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px}
    .service-card{display:flex; gap:14px; align-items:flex-start}
    .icon{
      width:42px;height:42px;border-radius:14px;display:grid;place-items:center;flex:none;
      background:linear-gradient(135deg,rgba(124,58,237,.14),rgba(6,182,212,.12));color:#4c1d95;font-weight:800
    }
    .steps{display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:16px}
    .step{position:relative}
    .step .num{font-size:13px;color:#7c3aed;font-weight:700;margin-bottom:10px}
    .step::after{
      content:""; position:absolute; right:-8px; top:34px; width:16px; height:2px; background:linear-gradient(90deg,var(--accent),var(--accent2));
    }
    .step:last-child::after{display:none}
    .compare-wrap{overflow:auto; border:1px solid var(--line); border-radius:22px; background:#fff; box-shadow:var(--shadow)}
    table{width:100%; border-collapse:collapse; min-width:760px}
    th,td{padding:16px; border-bottom:1px solid var(--line); text-align:left; vertical-align:top}
    th{background:#f8fafc; color:#111827; font-size:14px}
    td{color:#374151; font-size:14px; line-height:1.7}
    .rating{
      display:flex; align-items:center; gap:8px; flex-wrap:wrap; margin-top:10px
    }
    .stars{color:#f59e0b; letter-spacing:2px; font-size:18px}
    .dual{
      display:grid; grid-template-columns:1.05fr .95fr; gap:16px; align-items:start
    }
    .timeline{position:relative; padding-left:18px}
    .timeline::before{content:""; position:absolute; left:5px; top:6px; bottom:6px; width:2px; background:linear-gradient(180deg,var(--accent),var(--accent2))}
    .timeline-item{position:relative; padding:0 0 18px 18px}
    .timeline-item::before{content:""; position:absolute; left:-1px; top:6px; width:12px; height:12px; border-radius:50%; background:#fff; border:3px solid var(--accent)}
    .timeline-item h3{margin:0 0 6px; font-size:16px}
    .timeline-item p{margin:0; color:var(--muted); line-height:1.7}
    .review-grid{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px}
    .review-card{background:linear-gradient(180deg,#fff,#f8fbff)}
    .review-top{display:flex; justify-content:space-between; align-items:center; gap:10px; margin-bottom:10px}
    .review-name{font-weight:700}
    .review-role{font-size:12px;color:var(--muted)}
    .quote{font-size:14px; color:#334155; line-height:1.8}
    .article-list{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px}
    .article a{display:inline-flex; margin-top:10px; color:#4f46e5; font-weight:600}
    .faq details{
      background:#fff; border:1px solid var(--line); border-radius:18px; padding:16px 18px;
      box-shadow:0 8px 20px rgba(15,23,42,.04)
    }
    .faq summary{cursor:pointer; font-weight:700; color:#111827}
    .faq p{margin:10px 0 0; color:var(--muted); line-height:1.75}
    .faq-grid{display:grid; grid-template-columns:1fr 1fr; gap:14px}
    .form-grid{display:grid; grid-template-columns:1.1fr .9fr; gap:16px}
    form{
      background:#fff; border:1px solid var(--line); border-radius:24px; padding:20px; box-shadow:var(--shadow)
    }
    .fields{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:14px}
    .field{display:flex; flex-direction:column; gap:8px}
    label{font-size:13px; font-weight:700; color:#334155}
    input,select,textarea{
      width:100%; border:1px solid #dbe1ea; background:#fff; color:#111827;
      border-radius:14px; padding:12px 14px; font:inherit; outline:none; transition:.2s
    }
    textarea{min-height:124px; resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#8b5cf6; box-shadow:0 0 0 4px rgba(124,58,237,.12)}
    .form-actions{display:flex; gap:12px; flex-wrap:wrap; margin-top:14px}
    .contact-cards{display:grid; gap:14px}
    .contact-box{
      background:linear-gradient(135deg,#ffffff, #f8fbff); border:1px solid var(--line); border-radius:20px; padding:18px
    }
    .contact-box h3{margin:0 0 10px}
    .contact-line{display:flex; flex-wrap:wrap; gap:10px; color:#374151; line-height:1.8}
    .gallery{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px}
    .figure{
      background:#fff; border:1px solid var(--line); border-radius:22px; overflow:hidden; box-shadow:var(--shadow)
    }
    .figure img{width:100%; aspect-ratio:16/9; object-fit:cover}
    .figure figcaption{padding:14px 16px; color:#334155; line-height:1.7}
    .footer{
      padding:26px 0 34px;
      border-top:1px solid rgba(229,231,239,.9);
      background:linear-gradient(180deg,#f8fafc 0%, #eef2ff 100%);
      color:#1f2937;
    }
    .footer-grid{display:grid; grid-template-columns:1.2fr .8fr .8fr; gap:18px}
    .footer a{color:#334155}
    .footer a:hover{color:#111827}
    .footer small{color:#475569; line-height:1.8}
    .floating{
      position:fixed; right:16px; bottom:16px; z-index:60; display:flex; flex-direction:column; gap:10px
    }
    .float-btn{
      width:48px;height:48px;border-radius:16px;border:1px solid rgba(229,231,239,.95);
      background:#fff; box-shadow:0 12px 28px rgba(15,23,42,.12); display:grid; place-items:center; cursor:pointer
    }
    .customer-panel{
      position:fixed; right:16px; bottom:74px; width:min(320px, calc(100vw - 32px));
      border-radius:22px; background:#fff; border:1px solid var(--line); box-shadow:var(--shadow);
      padding:16px; display:none
    }
    .customer-panel.open{display:block}
    .customer-panel h3{margin:0 0 10px}
    .customer-panel img{border-radius:16px; width:100%; aspect-ratio:1/1; object-fit:cover; border:1px solid var(--line)}
    .customer-panel p{margin:10px 0 0; color:var(--muted); line-height:1.7; font-size:14px}
    .scroll-top{position:fixed; right:16px; bottom:132px}
    .reveal{opacity:0; transform:translateY(18px); transition:.7s ease}
    .reveal.in-view{opacity:1; transform:none}
    .mobile-menu{display:none}
    @media (max-width: 1100px){
      .hero-grid,.dual,.form-grid,.footer-grid{grid-template-columns:1fr}
      .grid-4,.steps{grid-template-columns:repeat(2,minmax(0,1fr))}
      .review-grid,.article-list,.grid-3,.service-grid,.gallery{grid-template-columns:repeat(2,minmax(0,1fr))}
      .faq-grid{grid-template-columns:1fr}
      .step::after{display:none}
    }
    @media (max-width: 780px){
      .nav-links,.nav-actions .btn-ghost{display:none}
      .menu-toggle{display:inline-grid;place-items:center}
      .mobile-menu{display:none; padding:0 0 14px}
      .mobile-menu.open{display:block}
      .mobile-menu a{display:block;padding:12px 0;border-top:1px solid var(--line);color:#334155}
      .hero-grid{padding:22px}
      .hero-points,.metric-grid,.fields,.grid-4,.steps,.review-grid,.article-list,.grid-3,.service-grid,.gallery{grid-template-columns:1fr}
      .lead{font-size:15px}
      .section-head{flex-direction:column; align-items:flex-start}
      .floating{right:12px; bottom:12px}
    }