/* 保持原有样式不变 */
        body {
            font-family: Arial, sans-serif;
            line-height: 1.6;
            margin: 0;
            padding: 0;
            color: #333;
            background-color: #f9f9f9;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: #3B82F6;
            color: white;
            padding: 1rem 0;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .logo {
            display: flex;
            align-items: center;
            text-decoration: none;
            color: white;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: white;
            color: #3B82F6;
            border-radius: 5px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            box-shadow: 0 4px 0 #ddd, inset 0 2px 0 rgba(255,255,255,0.5);
            position: relative;
        }
        .logo-icon::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 0;
            width: 100%;
            height: 1px;
            background: rgba(59, 130, 246, 0.2);
        }
        .logo-text {
            margin-left: 10px;
        }
        .logo span {
            font-size: 1.5rem;
            font-weight: bold;
            display: block;
        }
        nav {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
        }
        nav a {
            color: white;
            text-decoration: none;
            padding: 0.3rem 0;
        }
        .hero {
            background: #3B82F6;
            color: white;
            padding: 3rem 0;
            text-align: center;
        }
        .hero h1 {
            margin-bottom: 0.5rem;
            font-size: 2rem;
        }
        .hero p {
            margin-bottom: 2rem;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
            font-size: 1.1rem;
        }
        .btn {
            display: inline-block;
            padding: 0.8rem 1.5rem;
            text-decoration: none;
            border-radius: 5px;
            font-weight: bold;
            margin: 0.5rem;
            transition: all 0.3s ease;
        }
        .btn-primary {
            background: #2563EB;
            color: white;
            border: 2px solid #1D4ED8;
            padding: 0.9rem 2rem;
            font-size: 1.05rem;
        }
        .btn-primary:hover {
            background: #1D4ED8;
        }
        .btn-secondary {
            background: white;
            color: #3B82F6;
        }
        .btn-secondary:hover {
            background: #f0f0f0;
        }
        .ip-info {
            padding: 2rem 0;
            background: white;
            text-align: center;
        }
        .info-box {
            border: 1px solid #ddd;
            padding: 2rem;
            border-radius: 5px;
            max-width: 1000px;
            margin: 0 auto;
        }
        .ip-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .ip-item {
            text-align: left;
            min-width: 300px;
        }
        .ip-address {
            font-family: monospace;
            font-size: 1.4rem;
            font-weight: bold;
            margin: 0.5rem 0;
        }
        .ip-asn {
            font-family: monospace;
            font-size: 1rem;
            color: #666;
        }
        .connection-checks {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 2rem;
            margin-top: 1.5rem;
            align-items: center;
        }
        .status-light {
            display: inline-block;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            margin: 0 8px;
        }
        .green {
            background-color: #107c10;
        }
        .red {
            background-color: #c5221f;
        }
        .unet-details {
            font-family: monospace;
            margin-left: 5px;
        }
        .services {
            padding: 3rem 0;
        }
        .service-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }
        .service-card {
            background: white;
            padding: 1.5rem;
            border-radius: 5px;
            border: 1px solid #ddd;
        }
        .service-card a {
            color: #3B82F6;
            text-decoration: none;
        }
        footer {
            background: #333;
            color: white;
            padding: 2rem 0;
            margin-top: 2rem;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
        }
        .footer-brand {
            margin-bottom: 1rem;
        }
        .footer-links {
            display: flex;
            gap: 2rem;
            margin-bottom: 1rem;
        }
        .footer-links a {
            color: #ccc;
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            padding-top: 1rem;
            border-top: 1px solid #444;
            margin-top: 1rem;
            width: 100%;
        }
        .copyright a {
            color: #66b2ff;
            text-decoration: none;
        }