:root {
            /* 现代化配色方案 */
            --primary-color: #5E5CE6;
            --secondary-color: #007AFF;
            --accent-color: #30D158;
            --gradient-1: linear-gradient(135deg, #5E5CE6 0%, #007AFF 100%);
            --gradient-2: linear-gradient(135deg, #FF2D55 0%, #FF9500 100%);
            --gradient-3: linear-gradient(135deg, #5856D6 0%, #34C759 100%);
            
            --bg-color: #FFFFFF;
            --card-bg: #F2F2F7;
            --surface-1: #FFFFFF;
            --surface-2: #F2F2F7;
            --text-color: #1C1C1E;
            --text-secondary: #3C3C43;
            --text-tertiary: #8E8E93;
            --border-color: #C7C7CC;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
        }

        /* 黑夜模式变量 */
        [data-theme="dark"] {
            --primary-color: #5E5CE6;
            --secondary-color: #0A84FF;
            --accent-color: #30D158;
            --gradient-1: linear-gradient(135deg, #5E5CE6 0%, #0A84FF 100%);
            --gradient-2: linear-gradient(135deg, #FF375F 0%, #FF9F0A 100%);
            --gradient-3: linear-gradient(135deg, #5D5CE6 0%, #32D74B 100%);
            
            --bg-color: #000000;
            --card-bg: #1C1C1E;
            --surface-1: #1C1C1E;
            --surface-2: #2C2C2E;
            --text-color: #FFFFFF;
            --text-secondary: #EBEBF5;
            --text-tertiary: #8E8E93;
            --border-color: #38383A;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            background-color: var(--bg-color);
            color: var(--text-color);
            transition: var(--transition);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 头部样式 */
        header {
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: var(--surface-1);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            box-shadow: var(--shadow-sm);
            padding: 0 24px;
            border-bottom: 1px solid var(--border-color);
        }

        .logo {
            font-family: 'Poppins', sans-serif;
            font-weight: 700;
            font-size: 1.8rem;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--gradient-1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.2rem;
        }

        /* 主题切换按钮 - 现代化设计 */
        .theme-toggle {
            position: relative;
            width: 56px;
            height: 32px;
            background: var(--surface-2);
            border-radius: 20px;
            cursor: pointer;
            transition: var(--transition);
            border: 2px solid var(--border-color);
        }

        .theme-toggle:after {
            content: '';
            position: absolute;
            top: 4px;
            left: 4px;
            width: 20px;
            height: 20px;
            background: var(--gradient-1);
            border-radius: 50%;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 10px;
            color: white;
        }

        [data-theme="light"] .theme-toggle:after {
            content: '\f185';
        }

        [data-theme="dark"] .theme-toggle:after {
            content: '\f186';
            left: calc(100% - 24px);
        }

        /* 主标题区域 */
        .hero {
            padding: 120px 0 80px;
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
            position: relative;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(94, 92, 230, 0.1) 0%, rgba(0, 122, 255, 0.05) 50%, transparent 70%);
            border-radius: 50%;
            z-index: -1;
        }

        .hero h1 {
            font-family: 'Poppins', sans-serif;
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 24px;
            line-height: 1.1;
            background: var(--gradient-1);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .hero p {
            font-size: 1.25rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 48px;
            opacity: 0.9;
        }

        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 48px;
            margin-top: 60px;
        }

        .stat-item {
            text-align: center;
        }

        .stat-value {
            font-family: 'Poppins', sans-serif;
            font-size: 2.5rem;
            font-weight: 700;
            background: var(--gradient-1);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .stat-label {
            font-size: 0.95rem;
            color: var(--text-tertiary);
            margin-top: 8px;
        }

        /* 旗下网站区域 */
        .sites-section {
            padding: 40px 0 120px;
        }

        .section-title {
            font-family: 'Poppins', sans-serif;
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 60px;
            text-align: center;
            position: relative;
            padding-bottom: 24px;
        }

        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--gradient-1);
            border-radius: 2px;
        }

        /* 网站网格 - 现代化布局 */
        .sites-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
            margin-bottom: 60px;
        }

        .site-card {
            background: var(--surface-1);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            border: 1px solid var(--border-color);
            position: relative;
        }

        .site-card:hover {
            transform: translateY(-12px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-color);
        }

        .site-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--gradient-1);
            opacity: 0;
            transition: var(--transition);
        }

        .site-card:hover::before {
            opacity: 1;
        }

        .site-img {
            height: 200px;
            width: 100%;
            background-size: cover;
            background-position: center;
            position: relative;
            overflow: hidden;
        }

        .site-img:after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.2) 100%);
        }

        .site-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--gradient-2);
            color: white;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            z-index: 2;
        }

        .site-info {
            padding: 28px;
            position: relative;
        }

        .site-title {
            font-family: 'Poppins', sans-serif;
            font-size: 1.4rem;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text-color);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .site-title i {
            color: var(--primary-color);
            font-size: 1.2rem;
        }

        .site-desc {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 20px;
            line-height: 1.7;
        }

        .site-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 24px;
        }

        .site-tag {
            background: var(--surface-2);
            color: var(--text-secondary);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            transition: var(--transition);
        }

        .site-tag:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-2px);
        }

        /* 卡片内按钮 - 现代化设计 */
        .site-actions {
            display: flex;
            gap: 12px;
            margin-top: 20px;
        }

        .site-btn {
            padding: 14px 24px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            flex: 1;
            border: none;
            text-decoration: none;
            position: relative;
            overflow: hidden;
        }

        .site-btn::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 5px;
            height: 5px;
            background: rgba(255, 255, 255, 0.5);
            opacity: 0;
            border-radius: 100%;
            transform: scale(1, 1) translate(-50%);
            transform-origin: 50% 50%;
        }

        .site-btn:focus:not(:active)::after {
            animation: ripple 1s ease-out;
        }

        .site-btn-primary {
            background: var(--gradient-1);
            color: white;
        }

        .site-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(94, 92, 230, 0.3);
        }

        .site-btn-secondary {
            background: var(--surface-2);
            color: var(--text-color);
            border: 2px solid var(--border-color);
        }

        .site-btn-secondary:hover {
            background: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
            transform: translateY(-3px);
        }

        /* 信息区域 */
        .info-section {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 40px;
            background: var(--surface-1);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            margin: 80px auto;
            border: 1px solid var(--border-color);
            max-width: 1000px;
            position: relative;
            overflow: hidden;
        }

        .info-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 6px;
            height: 100%;
            background: var(--gradient-3);
        }

        .release-info h3 {
            font-family: 'Poppins', sans-serif;
            font-size: 1.5rem;
            margin-bottom: 12px;
        }

        .release-info p {
            color: var(--text-secondary);
            font-size: 1.1rem;
        }

        .admin-link {
            background: var(--gradient-3);
            color: white;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 12px;
            transition: var(--transition);
            box-shadow: 0 4px 15px rgba(52, 199, 89, 0.2);
        }

        .admin-link:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(52, 199, 89, 0.3);
        }

        /* 页脚 */
        footer {
            text-align: center;
            padding: 60px 0;
            border-top: 1px solid var(--border-color);
            color: var(--text-tertiary);
            font-size: 0.95rem;
        }

        .footer-links {
            display: flex;
            justify-content: center;
            gap: 32px;
            margin: 24px 0;
        }

        .footer-links a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--primary-color);
        }

        /* 动画 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes ripple {
            0% {
                transform: scale(0, 0);
                opacity: 1;
            }
            20% {
                transform: scale(25, 25);
                opacity: 1;
            }
            100% {
                opacity: 0;
                transform: scale(40, 40);
            }
        }

        .fade-in {
            animation: fadeInUp 0.6s ease-out forwards;
        }

        .site-card {
            animation: fadeInUp 0.6s ease-out forwards;
            opacity: 0;
        }

        .site-card:nth-child(1) { animation-delay: 0.1s; }
        .site-card:nth-child(2) { animation-delay: 0.2s; }
        .site-card:nth-child(3) { animation-delay: 0.3s; }
        .site-card:nth-child(4) { animation-delay: 0.4s; }
        .site-card:nth-child(5) { animation-delay: 0.5s; }
        .site-card:nth-child(6) { animation-delay: 0.6s; }
        .site-card:nth-child(7) { animation-delay: 0.7s; }
        .site-card:nth-child(8) { animation-delay: 0.8s; }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.5rem;
            }
            
            .hero p {
                font-size: 1.1rem;
                padding: 0 20px;
            }
            
            .hero-stats {
                flex-direction: column;
                gap: 30px;
            }
            
            .sites-grid {
                grid-template-columns: 1fr;
            }
            
            .info-section {
                flex-direction: column;
                gap: 30px;
                text-align: center;
                padding: 30px 20px;
            }
            
            .site-actions {
                flex-direction: column;
            }
            
            .footer-links {
                flex-wrap: wrap;
                gap: 20px;
            }
        }

        @media (max-width: 480px) {
            .hero {
                padding: 80px 0 60px;
            }
            
            .section-title {
                font-size: 2rem;
            }
            
            .site-card {
                margin: 0 10px;
            }
        }

        /* 加载动画 */
        .loading {
            position: relative;
            overflow: hidden;
        }

        .loading::after {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
            animation: loading 1.5s infinite;
        }

        @keyframes loading {
            0% { left: -100%; }
            100% { left: 100%; }
        }