--bg: #020617;
      --bg-elevated: #0f172a;
      --text: #f0f9ff;
      --text-muted: #94a3b8;
      --accent-cyan: #0ea5e9;
      --accent-blue: #3b82f6;
      --accent-purple: #8b5cf6;
      --border: rgba(14, 165, 233, 0.08);
    }

    * { margin: 0; padding: 0; box-sizing: border-box; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      background: var(--bg); color: var(--text); line-height: 1.6;
    }

    .top-nav {
      position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
      display: flex; align-items: center; justify-content: space-between;
      padding: 0 48px; height: 68px;
      background: rgba(15, 23, 42, 0.92);
      backdrop-filter: blur(20px) saturate(1.4);
      border-bottom: 1px solid var(--border);
    }
    .nav-brand {
      display: flex; align-items: center; gap: 12px;
      font-size: 20px; font-weight: 800; letter-spacing: 2px;
      text-decoration: none;
      color: var(--accent-cyan);
      filter: drop-shadow(0 0 3px rgba(0, 242, 255, 0.2));
    }
    .nav-logo {
      width: 36px; height: 36px; flex-shrink: 0;
      animation: logoPulse 4s ease-in-out infinite;
      transition: transform .35s ease;
    }
    @keyframes logoPulse {
      0%, 100% { filter: drop-shadow(0 0 4px rgba(0, 242, 255, 0.25)); }
      50% { filter: drop-shadow(0 0 10px rgba(0, 242, 255, 0.5)); }
    }
    .nav-brand:hover .nav-logo {
      filter: drop-shadow(0 0 14px rgba(0, 242, 255, 0.7));
      transform: scale(1.06);
    }
    .nav-links {
      display: flex; align-items: center; gap: 36px; list-style: none;
    }
    .nav-links a {
      color: var(--text-muted); text-decoration: none; font-size: 14px;
      font-weight: 600; letter-spacing: .5px; transition: color .25s; position: relative;
    }
    .nav-links a::after {
      content: ""; position: absolute; bottom: -6px; left: 0;
      width: 0; height: 2px; border-radius: 2px;
      background: var(--accent-cyan);
      transition: width .3s;
    }
    .nav-links a:hover, .nav-links a.active { color: var(--text); }
    .nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
    .nav-login {
      padding: 8px 20px; border-radius: 10px;
      border: 1px solid rgba(14, 165, 233, 0.4);
      background: rgba(14, 165, 233, 0.12);
      color: var(--accent-cyan); font-size: 13px; font-weight: 700;
      text-decoration: none; letter-spacing: .5px; transition: all .25s;
    }
    .nav-login:hover {
      background: rgba(14, 165, 233, 0.25);
      border-color: var(--accent-cyan);
      box-shadow: 0 0 20px rgba(14, 165, 233, 0.2);
    }

    .products-page {
      max-width: 1200px; margin: 0 auto; padding: 120px 24px 64px;
    }

    .page-header {
      text-align: center; margin-bottom: 60px;
    }
    .section-label {
      font-size: 12px; font-weight: 700; letter-spacing: 4px; color: var(--accent-cyan);
      margin-bottom: 20px; text-transform: uppercase;
    }
    .page-header h1 {
      font-size: clamp(28px, 4vw, 44px); font-weight: 300; letter-spacing: 4px; margin-bottom: 16px;
    }
    .page-header h1 strong {
      font-weight: 800; color: var(--text);
    }
    .page-header p {
      color: var(--text-muted); font-size: 16px; line-height: 2;
      max-width: 600px; margin: 0 auto;
    }

    .products-grid {
      display: grid; grid-template-columns: repeat(auto-fill, minmax(350px, 1fr)); gap: 24px;
    }

    .product-card {
      border: 1px solid var(--border); border-radius: 20px;
      background: var(--bg-elevated); padding: 32px;
      transition: all .4s cubic-bezier(0.23, 1, 0.32, 1);
      position: relative; overflow: hidden;
    }
    .product-card::before {
      content: ""; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
      width: 40%; height: 1px;
      background: var(--accent-cyan);
      opacity: .35; transition: all .5s ease;
    }
    .product-card:hover {
      border-color: rgba(14, 165, 233, 0.3);
      transform: translateY(-4px);
      box-shadow: 0 24px 60px rgba(0, 0, 0, 0.25), 0 0 40px rgba(59, 130, 246, 0.1);
    }
    .product-card:hover::before { opacity: .8; width: 70%; }

    .product-icon {
      width: 64px; height: 64px; border-radius: 16px; margin-bottom: 20px;
      background: var(--accent-cyan);
      display: flex; align-items: center; justify-content: center;
      font-size: 28px; font-weight: 900; color: #fff;
    }

    .product-card h2 {
      font-size: 22px; font-weight: 700; letter-spacing: 1px; margin-bottom: 12px;
      color: var(--text);
    }

    .product-card p {
      color: var(--text-muted); font-size: 14px; line-height: 1.8; margin-bottom: 24px;
      min-height: 60px;
    }

    .product-actions {
      display: flex; gap: 12px; flex-wrap: wrap;
    }
    .product-btn {
      display: inline-flex; align-items: center; gap: 8px;
      padding: 10px 20px; border-radius: 10px;
      font-size: 13px; font-weight: 600; text-decoration: none;
      transition: all .25s; letter-spacing: .5px;
    }
    .product-btn.primary {
      background: var(--accent-cyan);
      color: #fff; box-shadow: 0 4px 16px rgba(14, 165, 233, 0.2);
    }
    .product-btn.primary:hover {
      background: #0284c7;
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(14, 165, 233, 0.3);
    }
    .product-btn.secondary {
      border: 1px solid var(--border); background: rgba(14, 165, 233, 0.03);
      color: var(--text);
    }
    .product-btn.secondary:hover {
      border-color: rgba(14, 165, 233, 0.3);
      background: rgba(14, 165, 233, 0.06);
    }

    .empty-state {
      text-align: center; padding: 80px 24px;
      border: 1px solid var(--border); border-radius: 20px;
      background: var(--bg-elevated);
      color: var(--text-muted); font-size: 16px;
    }

    .site-footer {
      padding: 24px;
      border-top: 1px solid var(--border);
      background: var(--record-footer-bg, #030712);
      text-align: center;
      margin-top: 64px;
    }
    .site-footer p {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      flex-wrap: nowrap;
      color: var(--record-footer-color, #030712);
      font-size: 12px;
      letter-spacing: 0;
      margin: 0;
      max-width: 100%;
      overflow-x: auto;
      white-space: nowrap;
    }
    .site-footer a { color: var(--record-footer-color, #030712); text-decoration: none; }
    .site-footer a:hover { color: var(--record-footer-color, #030712); }
    .gongan-record {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      color: inherit;
      text-decoration: none;
      font-size: inherit;
      flex: 0 0 auto;
      white-space: nowrap;
    }
    .gongan-record img {
      width: 14px;
      height: 14px;
      display: inline-block;
      flex: 0 0 auto;
      object-fit: contain;
      vertical-align: -2px;
    }
    .gongan-record .gongan-badge {
      width: 14px;
      height: 14px;
      display: inline-block;
      flex: 0 0 auto;
      vertical-align: -2px;
      background-color: var(--badge-color, currentColor);
      -webkit-mask: url("/static/gongan.png") no-repeat center / contain;
      mask: url("/static/gongan.png") no-repeat center / contain;
    }

    @media (max-width: 768px) {
      .top-nav { padding: 0 20px; }
      .nav-links { gap: 20px; }
      .nav-links a { font-size: 13px; }
      .products-grid { grid-template-columns: 1fr; }
    }
  </style>