*{box-sizing:border-box}
    body{margin:0;min-height:100vh;background:#f4f7fb;color:#172033;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}
    header{height:58px;background:#1f7ae0;color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 28px;box-shadow:0 8px 24px rgba(31,122,224,.18)}
    .brand{display:flex;align-items:center;gap:9px;color:#fff;text-decoration:none;font-weight:900;letter-spacing:.02em}.brand img{width:32px;height:32px;object-fit:contain;border-radius:8px;background:#fff}
    nav{display:flex;gap:18px}nav a{color:#eef6ff;text-decoration:none;font-size:14px;font-weight:700}
    main{width:min(900px,calc(100vw - 32px));margin:32px auto}
    .hero{background:#fff;border:1px solid #e5eaf2;border-radius:22px;padding:24px 30px;box-shadow:0 18px 50px rgba(15,23,42,.08);margin-bottom:18px}
    .eyebrow{color:#1f7ae0;font-weight:900;letter-spacing:.08em;font-size:12px;margin-bottom:9px}
    h1{margin:0;font-size:32px;line-height:1.18;color:#172033}
    .sub{margin:10px 0 0;color:#667085;font-size:14px;line-height:1.65}
    .contact-card{display:grid;grid-template-columns:310px 1fr;gap:22px;align-items:stretch;background:#fff;border:1px solid #e5eaf2;border-radius:24px;padding:24px;box-shadow:0 18px 50px rgba(15,23,42,.08)}
    .help-summary{background:#f8fafc;border:1px solid #e8edf5;border-radius:22px;padding:22px;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center}
    .help-summary img{width:112px;height:112px;object-fit:contain;border-radius:20px;display:block;background:#fff}
    .help-summary h2{margin:20px 0 10px;font-size:23px}
    .help-summary p{color:#667085;font-size:14px;line-height:1.8;margin:0 0 20px}
    .info h2{font-size:24px;margin:0 0 8px}
    .info p{margin:0 0 12px;color:#667085;line-height:1.6;font-size:14px}
    .list{display:grid;gap:8px;margin:14px 0}
    .item{display:flex;gap:10px;align-items:flex-start;background:#f8fafc;border:1px solid #edf1f7;border-radius:14px;padding:11px 13px;color:#344054}
    .item strong{display:block;margin-bottom:5px;color:#172033;font-size:14px}
    .item ul{margin:0;padding-left:16px;color:#667085;line-height:1.48;font-size:12px}
    .item li{margin:1px 0}
    .dot{width:7px;height:7px;border-radius:50%;background:#1f7ae0;margin-top:7px;flex:0 0 auto}
    .actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
    .btn{height:40px;border-radius:12px;padding:0 16px;display:inline-flex;align-items:center;text-decoration:none;font-weight:800;background:#1f7ae0;color:#fff;font-size:14px}
    .btn.secondary{background:#eef5ff;color:#1f7ae0}
    @media(max-width:780px){header{padding:0 16px}nav{gap:12px}.contact-card{grid-template-columns:1fr}.hero{padding:28px 24px}h1{font-size:32px}}
    @media(max-width:520px){header{height:auto;min-height:58px;gap:12px;flex-wrap:wrap;padding:12px 16px}.brand{font-size:15px}nav{gap:16px}.hero{padding:24px}.contact-card{padding:16px}.help-summary{padding:24px 18px}.info h2{font-size:22px}}