* { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: 'Segoe UI', system-ui, sans-serif; background: #0b1120; color: #e2e8f0; line-height: 1.7; }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
        /* 导航 */
        nav { background: rgba(11,17,32,0.92); backdrop-filter: blur(12px); border-bottom: 1px solid #1e2a4a; position: sticky; top: 0; z-index: 100; }
        .nav-inner { display: flex; justify-content: space-between; align-items: center; height: 70px; }
        .logo { font-size: 1.6rem; font-weight: 800; background: linear-gradient(135deg,#3b82f6,#60a5fa); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
        .nav-links { display: flex; gap: 28px; }
        .nav-links a { color: #cbd5e1; text-decoration: none; font-weight: 500; font-size: 0.95rem; transition: color 0.2s; }
        .nav-links a:hover { color: #60a5fa; }
        /* 通用 */
        h1 { font-size: 2.8rem; font-weight: 800; background: linear-gradient(135deg,#3b82f6,#a78bfa); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin: 40px 0 16px; }
        h2 { font-size: 2rem; font-weight: 700; margin-bottom: 24px; color: #f1f5f9; border-left: 5px solid #3b82f6; padding-left: 18px; }
        .card { background: #111b2e; border: 1px solid #1e2f4a; border-radius: 20px; padding: 28px; box-shadow: 0 0 30px rgba(59,130,246,0.08); transition: 0.3s; }
        .card:hover { border-color: #3b82f6; box-shadow: 0 0 40px rgba(59,130,246,0.18); }
        .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
        .grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 24px; }
        .grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
        img { max-width: 100%; border-radius: 14px; display: block; margin: 20px 0; }
        .tag { background: #1e2a4a; color: #93c5fd; padding: 4px 14px; border-radius: 30px; font-size: 0.8rem; display: inline-block; }
        .btn-cta { display: inline-block; background: linear-gradient(135deg,#3b82f6,#1d4ed8); color: #fff; padding: 14px 44px; border-radius: 60px; font-weight: 700; text-decoration: none; font-size: 1.1rem; transition: 0.3s; }
        .btn-cta:hover { transform: scale(1.04); box-shadow: 0 0 30px #3b82f6; }
        footer { background: #0a0f1a; border-top: 1px solid #1e2a4a; padding: 48px 0 30px; margin-top: 60px; }
        footer p, footer a { color: #94a3b8; font-size: 0.9rem; }
        .footer-links a { margin: 0 10px; }
        .footer-links a:hover { color: #60a5fa; }
        .friend-links { margin: 18px 0; word-break: break-all; }
        .friend-links a { color: #93c5fd; }
        @media (max-width: 900px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } h1 { font-size: 2rem; } .nav-links { gap: 14px; flex-wrap: wrap; } }
        /* 卡片发光 */
        .glow-card { background: #0f1a2e; border: 1px solid #2a3e62; border-radius: 20px; padding: 24px; transition: 0.3s; }
        .glow-card:hover { border-color: #3b82f6; box-shadow: 0 0 38px rgba(59,130,246,0.2); }
        .stat-number { font-size: 2.6rem; font-weight: 800; color: #3b82f6; }
        .news-item { padding: 18px 0; border-bottom: 1px solid #1e2a4a; }
        .news-item:last-child { border: none; }
        .faq-item { padding: 18px 0; border-bottom: 1px solid #1e2d4a; }
        .faq-item h4 { color: #93c5fd; font-size: 1.15rem; margin-bottom: 8px; }