:root{
      --bg:#f7f8fc;
      --panel:#ffffff;
      --panel-2:#f1f5ff;
      --text:#182230;
      --muted:#5f6d82;
      --brand:#2f6bff;
      --brand-2:#ff5a7a;
      --line:#dfe7f3;
      --shadow:0 18px 50px rgba(31,52,88,.10);
      --radius:22px;
      --radius-sm: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;
      background:
        radial-gradient(circle at top left, rgba(47,107,255,.12), transparent 28%),
        radial-gradient(circle at top right, rgba(255,90,122,.12), transparent 25%),
        linear-gradient(180deg, #fff 0%, #f7f8fc 35%, #f7f8fc 100%);
      color:var(--text);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .site-header{
      position:sticky; top:0; z-index:50;
      background:rgba(247,248,252,.82);
      backdrop-filter:blur(12px);
      border-bottom:1px solid rgba(223,231,243,.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 22px rgba(47,107,255,.12)}
    .brand strong{display:block; font-size:18px; letter-spacing:.4px}
    .brand span{display:block; font-size:12px; color:var(--muted)}
    .nav-links{display:flex; align-items:center; gap:14px; flex-wrap:wrap}
    .nav-links a{font-size:14px; color:var(--muted); padding:8px 10px; border-radius:999px; transition:.2s ease}
    .nav-links a:hover,.nav-links a.active{color:var(--text); background:rgba(47,107,255,.08)}
    .nav-cta{display:flex; align-items:center; gap:10px}
    .btn{
      border:none; cursor:pointer; display:inline-flex; align-items:center; justify-content:center; gap:8px;
      border-radius:999px; padding:12px 18px; font-weight:700; transition:.22s ease; white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),#6c8dff); color:#fff; box-shadow:0 14px 28px rgba(47,107,255,.24)}
    .btn-primary:hover{transform:translateY(-2px); box-shadow:0 18px 34px rgba(47,107,255,.28)}
    .btn-light{background:#fff; border:1px solid var(--line); color:var(--text)}
    .btn-light:hover{transform:translateY(-2px); box-shadow:var(--shadow)}
    .menu-toggle{display:none}
    .hero{padding:36px 0 18px}
    .hero-grid{display:grid; grid-template-columns:1.15fr .85fr; gap:22px; align-items:stretch}
    .hero-main,.hero-side,.card,.panel,.review,.faq-item,.case,.article,.timeline li,.contact-box,.pricing,.compare{
      background:var(--panel); border:1px solid rgba(223,231,243,.9); border-radius:var(--radius); box-shadow:var(--shadow);
    }
    .hero-main{padding:30px; position:relative; overflow:hidden}
    .hero-main:before,.hero-main:after{
      content:""; position:absolute; border-radius:50%; pointer-events:none;
      background:linear-gradient(135deg, rgba(47,107,255,.18), rgba(255,90,122,.16));
      filter:blur(4px);
    }
    .hero-main:before{width:240px; height:240px; right:-90px; top:-70px}
    .hero-main:after{width:170px; height:170px; right:70px; bottom:-70px}
    .eyebrow{display:inline-flex; align-items:center; gap:8px; padding:7px 12px; border-radius:999px; background:rgba(47,107,255,.08); color:#214cc9; font-weight:700; font-size:13px}
    h1{margin:14px 0 12px; font-size:clamp(30px, 4.6vw, 52px); line-height:1.08}
    .lead{margin:0; font-size:17px; line-height:1.85; color:var(--muted); max-width:60ch}
    .hero-actions{display:flex; flex-wrap:wrap; gap:12px; margin-top:22px}
    .hero-points{display:grid; grid-template-columns:repeat(3, minmax(0,1fr)); gap:12px; margin-top:24px}
    .mini{
      background:linear-gradient(180deg,#fff,#f7faff); border:1px solid var(--line); border-radius:18px; padding:14px 14px 12px;
    }
    .mini strong{display:block; font-size:20px}
    .mini span{display:block; margin-top:6px; color:var(--muted); font-size:13px; line-height:1.5}
    .hero-side{padding:18px}
    .side-card{background:linear-gradient(180deg, #0f1f42, #17326c); color:#fff; border-radius:18px; padding:18px; overflow:hidden}
    .side-card h2{margin:0 0 8px; font-size:20px}
    .side-card p{margin:0; color:rgba(255,255,255,.82); line-height:1.8}
    .feature-list{list-style:none; margin:14px 0 0; padding:0; display:grid; gap:10px}
    .feature-list li{display:flex; gap:10px; align-items:flex-start; color:#e9f0ff; font-size:14px; line-height:1.6}
    .dot{width:10px; height:10px; border-radius:50%; background:linear-gradient(135deg,#ff5a7a,#ffd166); margin-top:6px; flex:none}
    .hero-stat{display:grid; gap:12px; margin-top:14px}
    .stat{
      display:flex; align-items:center; justify-content:space-between; gap:14px;
      padding:13px 14px; border-radius:16px; background:var(--panel-2); border:1px solid rgba(47,107,255,.10);
    }
    .stat b{font-size:18px}
    .section{padding:18px 0}
    .section-head{display:flex; align-items:flex-end; justify-content:space-between; gap:14px; margin-bottom:16px}
    .section-head h2{margin:0; font-size:28px}
    .section-head p{margin:0; color:var(--muted); line-height:1.7; max-width:70ch}
    .grid-4{display:grid; grid-template-columns:repeat(4,1fr); gap:14px}
    .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:14px}
    .grid-2{display:grid; grid-template-columns:repeat(2,1fr); gap:14px}
    .card{padding:18px}
    .card h3{margin:10px 0 8px; font-size:18px}
    .card p,.card li,.panel p{margin:0; color:var(--muted); line-height:1.75}
    .tag-cloud{display:flex; flex-wrap:wrap; gap:10px}
    .tag{padding:9px 13px; border-radius:999px; background:#fff; border:1px solid var(--line); color:#31435a; font-size:13px}
    .workflow{counter-reset:step}
    .workflow .card{position:relative}
    .workflow .card:before{
      counter-increment:step; content:counter(step, decimal-leading-zero);
      position:absolute; top:16px; right:16px; color:rgba(47,107,255,.16); font-size:26px; font-weight:800;
    }
    .table-wrap{overflow-x:auto; border-radius:var(--radius); background:var(--panel); border:1px solid rgba(223,231,243,.9); box-shadow:var(--shadow)}
    table{width:100%; border-collapse:collapse; min-width:820px}
    th,td{padding:15px 16px; text-align:left; border-bottom:1px solid #edf1f8; vertical-align:top}
    th{background:#f6f9ff; font-size:14px}
    td{color:var(--muted); line-height:1.65}
    .badge{display:inline-flex; align-items:center; gap:8px; padding:7px 12px; border-radius:999px; font-size:13px; background:rgba(47,107,255,.08); color:#2047bb; font-weight:700}
    .compare-hero{display:grid; grid-template-columns:1fr 1fr; gap:14px}
    .score{
      padding:22px; border-radius:var(--radius); background:linear-gradient(135deg,#0f1f42,#204dbf); color:#fff;
    }
    .score .big{font-size:44px; font-weight:900; line-height:1}
    .score small{display:block; margin-top:6px; opacity:.86}
    .review{padding:18px}
    .review .meta{display:flex; align-items:center; justify-content:space-between; gap:10px; margin-bottom:10px}
    .stars{color:#ffb400; letter-spacing:1px}
    .quote{font-size:15px; line-height:1.8; color:var(--muted)}
    .timeline{list-style:none; padding:0; margin:0; display:grid; gap:12px}
    .timeline li{padding:16px 16px 16px 18px; position:relative}
    .timeline li:before{content:""; position:absolute; left:16px; top:20px; width:10px; height:10px; border-radius:50%; background:linear-gradient(135deg,var(--brand),var(--brand-2))}
    .timeline .inner{padding-left:18px}
    .article-list{display:grid; gap:12px}
    .article{padding:16px 18px; display:flex; align-items:flex-start; justify-content:space-between; gap:14px}
    .article h3{margin:0 0 6px; font-size:17px}
    .article time{color:var(--muted); font-size:13px; white-space:nowrap}
    .contact-box{padding:20px}
    .form-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:12px}
    .field{display:grid; gap:7px}
    label{font-weight:700; font-size:14px}
    input,select,textarea{
      width:100%; border:1px solid var(--line); border-radius:14px; padding:13px 14px;
      font:inherit; background:#fff; color:var(--text); outline:none; transition:.2s ease;
    }
    textarea{min-height:120px; resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:rgba(47,107,255,.55); box-shadow:0 0 0 4px rgba(47,107,255,.10)}
    .full{grid-column:1/-1}
    .footer{
      margin-top:8px;
      background:#0f1f42; color:#fff;
      padding:28px 0 18px;
    }
    .footer a{color:#dbe7ff}
    .footer .muted{color:#b8c8f0}
    .footer-grid{display:grid; grid-template-columns:1.3fr .9fr .8fr; gap:18px}
    .footer small{display:block; color:#b8c8f0; line-height:1.7}
    .footer-links{display:grid; gap:10px}
    .subtle{color:var(--muted)}
    .floating{
      position:fixed; right:16px; bottom:16px; z-index:60; display:grid; gap:10px;
    }
    .float-btn{
      width:52px; height:52px; border-radius:50%; display:grid; place-items:center;
      background:linear-gradient(135deg,var(--brand),#6c8dff); color:#fff; box-shadow:0 16px 32px rgba(47,107,255,.28);
      border:none; cursor:pointer;
    }
    .kefu-panel{
      position:fixed; right:16px; bottom:82px; width:280px; background:#fff; border:1px solid var(--line); border-radius:20px; box-shadow:var(--shadow);
      padding:14px; display:none; z-index:61;
    }
    .kefu-panel.open{display:block}
    .kefu-panel h3{margin:0 0 10px; font-size:16px}
    .kefu-panel p{margin:6px 0; color:var(--muted); font-size:14px; line-height:1.7}
    .kefu-panel img{border-radius:14px; border:1px solid var(--line)}
    .reveal{opacity:0; transform:translateY(18px); transition:.7s ease}
    .reveal.visible{opacity:1; transform:none}
    .mobile-only{display:none}
    .spaced{margin-top:12px}
    .small-note{font-size:13px; color:var(--muted); line-height:1.7}
    .pill-row{display:flex; flex-wrap:wrap; gap:10px}
    .image-row{display:grid; grid-template-columns:repeat(3,1fr); gap:12px}
    .image-row img{width:100%; border-radius:18px; border:1px solid var(--line); box-shadow:var(--shadow); object-fit:cover}
    @media (max-width: 1024px){
      .hero-grid,.compare-hero,.footer-grid,.grid-4{grid-template-columns:1fr 1fr}
      .grid-3{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 760px){
      .nav-links,.nav-cta{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-only{display:flex}
      .hero-grid,.grid-4,.grid-3,.grid-2,.compare-hero,.footer-grid,.form-grid,.hero-points,.image-row{grid-template-columns:1fr}
      .hero-main,.hero-side,.card,.contact-box{padding:18px}
      .section-head{flex-direction:column; align-items:flex-start}
      .nav-links.open{
        display:grid; grid-template-columns:1fr; position:absolute; left:16px; right:16px; top:68px;
        background:#fff; padding:12px; border:1px solid var(--line); border-radius:18px; box-shadow:var(--shadow);
      }
      .nav-cta.open{display:flex; position:absolute; right:16px; top:310px}
      .site-header{position:sticky}
      h1{font-size:32px}
      .hero{padding-top:20px}
      .table-wrap{margin-right:-16px; padding-bottom:2px}
    }