:root {
      --bg-top: #c0000a;
      --bg-bot: #8a0007;
      --card: rgba(255, 255, 255, 0.98);
      --text: #1a1a1a;
      --muted: #666;
      --brand: #c0000a;
      --brand-2: #8a0007;
      --gold: #d4a017;
      --gold-2: #f0c040;
      --radius: 20px;
    }

    * { box-sizing: border-box }
    html, body { height: 100% }

    body {
      margin: 0;
      font: 16px/1.5 system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      color: var(--text);
      background:
        radial-gradient(ellipse 120% 55% at 50% -5%, #e8000f 0%, transparent 55%),
        radial-gradient(ellipse 70% 40% at 0% 100%, #6a0005 0%, transparent 50%),
        linear-gradient(170deg, #c0000a 0%, #8a0007 50%, #5a0005 100%);
      min-height: 100vh;
    }

    .wrap { max-width: 480px; margin: 0 auto; padding: 20px }

    /* ── 顶部金条 ── */
    .gold-bar {
      background: linear-gradient(90deg, transparent, #d4a017, #f0c040, #d4a017, transparent);
      height: 2px;
      margin-bottom: 18px;
    }

    /* ── Header ── */
    header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 4px;
    }

    .brand { display: flex; align-items: center; gap: 14px }

    .logo {
      width: 62px;
      height: 62px;
      border-radius: 16px;
      flex: 0 0 62px;
      display: grid;
      place-items: center;
      background: #fff;
      box-shadow: 0 6px 24px rgba(0,0,0,.35), 0 0 0 2.5px rgba(212,160,23,.8);
      overflow: hidden;
      font-size: 36px;
    }

    .brand h1 {
      font-size: 21px;
      margin: 0 0 3px;
      font-weight: 800;
      color: #fff;
      text-shadow: 0 2px 8px rgba(0,0,0,.3);
      letter-spacing: 0.5px;
    }

    .brand-sub {
      color: rgba(255,255,255,.8);
      font-size: 11px;
      letter-spacing: 0.5px;
    }

    .official-tag {
      background: linear-gradient(135deg, #d4a017, #f0c040);
      color: #5a0005;
      font-size: 10px;
      padding: 5px 11px;
      border-radius: 10px;
      font-weight: 800;
      letter-spacing: 1px;
      white-space: nowrap;
    }

    /* ── Card ── */
    .hero { margin: 20px 0 }

    .card {
      background: var(--card);
      border-radius: var(--radius);
      padding: 26px 24px;
      box-shadow: 0 20px 60px rgba(0,0,0,.4), 0 0 0 1px rgba(212,160,23,.15);
    }

    /* 顶部品牌条 */
    .card-header-bar {
      display: flex;
      align-items: center;
      gap: 10px;
      background: linear-gradient(90deg, #c0000a, #e0001a);
      border-radius: 12px;
      padding: 12px 16px;
      margin-bottom: 20px;
      color: #fff;
    }

    .card-header-icon { font-size: 24px; flex: 0 0 auto }

    .card-header-text { flex: 1; font-size: 12px; line-height: 1.5; opacity: .9 }

    .card-header-text strong {
      display: block;
      font-size: 15px;
      font-weight: 700;
      color: #f0c040;
    }

    h2 {
      font-size: 22px;
      margin: 0 0 6px;
      color: var(--brand);
      font-weight: 800;
    }

    p.lead {
      color: var(--muted);
      margin: 0 0 18px;
      font-size: 13px;
      line-height: 1.6;
    }

    .features {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 9px;
      margin-bottom: 20px;
    }

    .feature {
      background: linear-gradient(135deg, #fff5f5 0%, #fff 100%);
      border: 1.5px solid #fcd0d0;
      border-radius: 12px;
      padding: 12px 10px;
      text-align: center;
    }

    .feature-icon { font-size: 24px; margin-bottom: 4px }
    .feature-text { font-size: 11px; color: var(--muted); font-weight: 600 }

    /* ── 下载按钮 ── */
    .btn-wrap { position: relative }

    .btn {
      appearance: none;
      border: 0;
      cursor: pointer;
      border-radius: 14px;
      padding: 16px 24px;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      text-decoration: none;
      color: #fff;
      background: linear-gradient(135deg, #c0000a 0%, #8a0007 100%);
      transition: all .2s ease;
      font-size: 17px;
      width: 100%;
      box-shadow: 0 8px 24px rgba(192,0,10,.45), inset 0 1px 0 rgba(255,255,255,.15);
      letter-spacing: 1px;
    }

    .btn:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(192,0,10,.55) }
    .btn:active { transform: translateY(0) }

    /* ── 优惠横幅 ── */
    .promo-bar {
      display: flex;
      gap: 8px;
      margin: 14px 0;
    }

    .promo-item {
      flex: 1;
      background: linear-gradient(135deg, #fff8e6, #fef0cc);
      border: 1px solid #f0c040;
      border-radius: 10px;
      padding: 9px 6px;
      text-align: center;
    }

    .promo-num { font-size: 18px; font-weight: 800; color: #c0000a }
    .promo-unit { font-size: 11px; color: #c0000a; font-weight: 600 }
    .promo-label { font-size: 10px; color: #888; margin-top: 2px }

    /* ── 信息列表 ── */
    .stats {
      display: flex;
      justify-content: space-between;
      margin: 16px 0;
      padding: 14px 0;
      border-top: 1px dashed #fcd0d0;
      border-bottom: 1px dashed #fcd0d0;
    }

    .stat { text-align: center; flex: 1 }
    .stat + .stat { border-left: 1px solid #fce0e0 }
    .stat-num { font-size: 15px; font-weight: 800; color: var(--brand) }
    .stat-label { font-size: 10px; color: var(--muted); margin-top: 2px }

    .info { margin-top: 2px }

    .info-row {
      display: flex;
      justify-content: space-between;
      padding: 10px 0;
      font-size: 13px;
      border-bottom: 1px solid #f5f5f5;
    }

    .info-row:last-child { border-bottom: none }
    .info-label { color: var(--muted) }
    .info-value { color: var(--text); font-weight: 600 }

    .tip {
      background: linear-gradient(135deg, #fff5f5, #ffe8e8);
      border: 1px solid #fcd0d0;
      border-radius: 10px;
      padding: 11px 14px;
      margin-top: 16px;
      font-size: 12px;
      color: #8a0007;
      text-align: center;
      line-height: 1.6;
    }

    /* ── 底部说明 ── */
    .bank-footer-card {
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(212,160,23,.25);
      border-radius: 12px;
      padding: 14px 16px;
      margin-top: 14px;
      display: flex;
      gap: 10px;
      align-items: flex-start;
    }

    .bank-footer-icon { font-size: 18px; flex: 0 0 auto; margin-top: 1px }

    .bank-footer-text {
      font-size: 11px;
      color: rgba(255,255,255,.6);
      line-height: 1.7;
    }

    .bank-footer-text a { color: #f0c040; text-decoration: none }

    footer {
      margin: 14px 0 8px;
      text-align: center;
      color: rgba(255,255,255,.35);
      font-size: 10px;
    }