:root{
      --bg:#f5f8ff;
      --panel:#ffffff;
      --panel-2:#eef4ff;
      --line:#d9e3f7;
      --text:#18304f;
      --muted:#5f728e;
      --brand:#0b5bd3;
      --brand-2:#18a0fb;
      --brand-3:#0a3ea8;
      --accent:#ffb800;
      --shadow:0 14px 36px rgba(20,53,111,.12);
      --shadow-soft:0 8px 20px rgba(20,53,111,.08);
      --radius:20px;
      --radius-sm:14px;
      --max: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",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(24,160,251,.14), transparent 24%),
        radial-gradient(circle at 85% 10%, rgba(11,91,211,.13), transparent 26%),
        linear-gradient(180deg, #eef5ff 0%, #f8fbff 34%, #f5f8ff 100%);
    }
    a{color:var(--brand);text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max), calc(100% - 32px)); margin:0 auto}
    header,main,footer{position:relative; z-index:1}
    .topbar{
      position:sticky; top:0; z-index:50;
      backdrop-filter:saturate(180%) blur(14px);
      background:rgba(245,248,255,.82);
      border-bottom:1px solid rgba(217,227,247,.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:40px; height:40px; object-fit:contain; border-radius:10px; background:#fff; box-shadow:var(--shadow-soft)}
    .brand-text{min-width:0}
    .brand-text strong{display:block; font-size:1.02rem; letter-spacing:.4px}
    .brand-text span{display:block; font-size:.82rem; color:var(--muted)}
    .menu-btn{display:none; border:1px solid var(--line); background:#fff; color:var(--text); border-radius:12px; padding:10px 12px}
    .nav-links{display:flex; align-items:center; gap:14px; flex-wrap:wrap; justify-content:flex-end}
    .nav-links a{font-size:.95rem; color:var(--text); padding:8px 10px; border-radius:10px}
    .nav-links a:hover{background:rgba(11,91,211,.08); color:var(--brand)}
    .cta{
      display:inline-flex; align-items:center; justify-content:center; gap:8px;
      padding:12px 16px; border-radius:999px; border:1px solid transparent;
      background:linear-gradient(135deg, var(--brand) 0%, var(--brand-2) 100%);
      color:#fff; font-weight:700; box-shadow:0 10px 20px rgba(11,91,211,.18);
      transition:.25s ease;
    }
    .cta:hover{transform:translateY(-1px); box-shadow:0 16px 24px rgba(11,91,211,.22)}
    .ghost{
      display:inline-flex; align-items:center; justify-content:center;
      padding:12px 16px; border-radius:999px; border:1px solid var(--line);
      background:#fff; color:var(--text); font-weight:700;
    }
    .hero{padding:30px 0 14px}
    .hero-grid{display:grid; grid-template-columns:1.15fr .85fr; gap:22px; align-items:stretch}
    .hero-card{
      background:linear-gradient(180deg, rgba(255,255,255,.95), rgba(239,245,255,.92));
      border:1px solid rgba(217,227,247,.95);
      border-radius:28px; box-shadow:var(--shadow); overflow:hidden; position:relative;
    }
    .hero-main{padding:28px}
    .badge{
      display:inline-flex; align-items:center; gap:8px; padding:8px 12px; border-radius:999px;
      background:rgba(11,91,211,.10); color:var(--brand-3); font-weight:700; font-size:.88rem;
    }
    h1{margin:16px 0 12px; font-size:clamp(2rem, 4vw, 3.6rem); line-height:1.08}
    .lead{margin:0; font-size:1.06rem; line-height:1.8; color:var(--muted); max-width:58ch}
    .hero-actions{display:flex; gap:12px; flex-wrap:wrap; margin-top:22px}
    .hero-points{display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-top:24px}
    .point{padding:14px; border-radius:18px; background:rgba(255,255,255,.85); border:1px solid var(--line)}
    .point strong{display:block; font-size:1.08rem}
    .point span{display:block; margin-top:6px; color:var(--muted); font-size:.92rem; line-height:1.5}
    .hero-side{padding:22px; display:grid; gap:14px}
    .mini-stat{
      padding:18px; border-radius:20px; background:linear-gradient(145deg, #0b5bd3, #1b8df5);
      color:#fff; box-shadow:0 16px 30px rgba(11,91,211,.24);
    }
    .mini-stat small{display:block; opacity:.88}
    .mini-stat strong{display:block; font-size:2rem; margin-top:8px}
    .mini-panel{
      padding:18px; border-radius:20px; background:#fff; border:1px solid var(--line)
    }
    .mini-panel h3{margin:0 0 10px; font-size:1.02rem}
    .mini-panel p{margin:0; color:var(--muted); line-height:1.7}
    .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:1.6rem}
    .section-head p{margin:0; color:var(--muted); line-height:1.7; max-width:58ch}
    .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .grid-4{display:grid; grid-template-columns:repeat(4,1fr); gap:16px}
    .card{
      background:var(--panel); border:1px solid var(--line); border-radius:var(--radius);
      box-shadow:var(--shadow-soft); padding:20px; transition:.25s ease;
    }
    .card:hover{transform:translateY(-4px); box-shadow:var(--shadow)}
    .card h3{margin:0 0 10px; font-size:1.08rem}
    .card p{margin:0; color:var(--muted); line-height:1.75}
    .metric{font-size:1.8rem; font-weight:800; color:var(--brand-3); margin-bottom:8px}
    .tags{display:flex; flex-wrap:wrap; gap:10px}
    .tag{padding:8px 12px; border-radius:999px; background:#fff; border:1px solid var(--line); color:var(--text); font-size:.92rem}
    .panel{
      background:linear-gradient(180deg, #ffffff, #f4f8ff); border:1px solid var(--line);
      border-radius:28px; padding:22px; box-shadow:var(--shadow-soft)
    }
    .steps{display:grid; grid-template-columns:repeat(4,1fr); gap:14px}
    .step{padding:18px; border-radius:18px; background:#fff; border:1px solid var(--line)}
    .step b{display:inline-flex; width:34px; height:34px; align-items:center; justify-content:center; border-radius:50%; background:rgba(11,91,211,.12); color:var(--brand-3); margin-bottom:10px}
    .step h3{margin:0 0 8px}
    .step p{margin:0; color:var(--muted); line-height:1.7}
    .table-wrap{overflow:auto; border-radius:22px; border:1px solid var(--line); background:#fff; box-shadow:var(--shadow-soft)}
    table{width:100%; border-collapse:collapse; min-width:860px}
    th,td{padding:16px 14px; text-align:left; border-bottom:1px solid #e8eef8; vertical-align:top}
    th{background:#f4f8ff; color:var(--text)}
    tr:hover td{background:#fafcff}
    .highlight{color:var(--brand-3); font-weight:700}
    .rating{
      display:grid; grid-template-columns:1fr 1fr; gap:16px; align-items:stretch;
    }
    .stars{font-size:1.6rem; color:#f7a800; letter-spacing:2px}
    .quote-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .quote{position:relative; padding:20px}
    .quote:before{content:"“"; position:absolute; top:10px; right:16px; font-size:3rem; color:rgba(11,91,211,.16); font-weight:800}
    .quote .role{margin-top:12px; color:var(--brand-3); font-weight:700; font-size:.92rem}
    .gallery{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .gallery .img-box, .gallery .wide{overflow:hidden; border-radius:22px; border:1px solid var(--line); background:#fff}
    .gallery img{width:100%; height:auto}
    .list{display:grid; gap:12px}
    .list a{display:flex; justify-content:space-between; gap:12px; padding:14px 16px; border-radius:16px; background:#fff; border:1px solid var(--line); color:var(--text)}
    .list a:hover{border-color:rgba(11,91,211,.28); box-shadow:var(--shadow-soft)}
    .faq details{
      background:#fff; border:1px solid var(--line); border-radius:18px; padding:14px 16px;
      box-shadow:var(--shadow-soft)
    }
    .faq{display:grid; gap:12px}
    .faq summary{cursor:pointer; list-style:none; font-weight:700; color:var(--text)}
    .faq summary::-webkit-details-marker{display:none}
    .faq p{margin:10px 0 0; color:var(--muted); line-height:1.75}
    form{
      display:grid; gap:14px;
      background:#fff; border:1px solid var(--line); border-radius:24px; padding:20px; box-shadow:var(--shadow-soft)
    }
    .form-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:14px}
    label{display:grid; gap:8px; font-weight:700; color:var(--text)}
    input,select,textarea{
      width:100%; border:1px solid #d8e1f0; border-radius:14px; padding:12px 14px;
      font:inherit; color:var(--text); background:#fbfcff; outline:none;
    }
    input:focus,select:focus,textarea:focus{border-color:rgba(11,91,211,.55); box-shadow:0 0 0 4px rgba(11,91,211,.08)}
    textarea{min-height:120px; resize:vertical}
    .full{grid-column:1 / -1}
    .footer{
      margin-top:18px; padding:24px 0 28px; background:#eef4ff; border-top:1px solid var(--line); color:#24415f
    }
    .footer-grid{display:grid; grid-template-columns:1.2fr .8fr .9fr; gap:18px}
    .footer a{color:var(--brand-3)}
    .fine{margin-top:16px; padding-top:16px; border-top:1px solid #d8e1f0; color:#5c728e; font-size:.92rem}
    .float-box{
      position:fixed; right:16px; bottom:16px; z-index:60; display:grid; gap:10px;
    }
    .float-box a,.float-box button{
      border:none; cursor:pointer; border-radius:999px; padding:12px 14px; font-weight:700;
      background:linear-gradient(135deg, var(--brand), var(--brand-2)); color:#fff; box-shadow:0 10px 22px rgba(11,91,211,.25)
    }
    .to-top{display:none}
    .sticky-contact{
      display:grid; grid-template-columns:140px 1fr; gap:14px; align-items:center;
    }
    .contact-card{
      background:#fff; border:1px solid var(--line); border-radius:22px; padding:18px; box-shadow:var(--shadow-soft)
    }
    .contact-card img{border-radius:14px; background:#fff}
    .fade-in{opacity:0; transform:translateY(16px); transition:.7s ease}
    .fade-in.show{opacity:1; transform:none}
    .chipline{display:flex; flex-wrap:wrap; gap:10px; margin-top:14px}
    .subtle{color:var(--muted)}
    @media (max-width: 1080px){
      .hero-grid,.grid-4,.steps,.quote-grid,.gallery,.footer-grid,.rating{grid-template-columns:1fr 1fr}
      .grid-3{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 760px){
      .nav{flex-wrap:wrap}
      .menu-btn{display:inline-flex}
      .nav-links{display:none; width:100%; padding:8px 0 4px}
      .nav-links.open{display:flex; flex-direction:column; align-items:flex-start}
      .hero-grid,.grid-3,.grid-4,.steps,.quote-grid,.gallery,.footer-grid,.rating,.form-grid,.sticky-contact{grid-template-columns:1fr}
      .hero-main{padding:22px}
      .hero-points{grid-template-columns:1fr}
      h1{font-size:2rem}
      .section-head{flex-direction:column; align-items:flex-start}
      .float-box{right:12px; bottom:12px}
    }