:root {
            --primary-color: #00f7ff;
            --primary-dark: #00c4cc;
            --secondary-color: #0066ff;
            --secondary-dark: #004ccc;
            --accent-color: #ff00aa;
            --accent-dark: #cc0088;
            --dark-bg: #0a0a1a;
            --darker-bg: #050510;
            --darkest-bg: #020208;
            --card-bg: rgba(15, 15, 35, 0.7);
            --text-color: #e0e0e0;
            --text-muted: #a0a0a0;
            --success-color: #00ff88;
            --warning-color: #ffaa00;
            --error-color: #ff4444;
            --safe-area-inset-top: env(safe-area-inset-top);
            --safe-area-inset-bottom: env(safe-area-inset-bottom);
            --safe-area-inset-left: env(safe-area-inset-left);
            --safe-area-inset-right: env(safe-area-inset-right);
            --glass-blur: 8px;
            --transition-speed: 0.3s;
            --border-radius: 12px;
            --box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
        }

        [data-theme="light"] {
            --dark-bg: #f0f2f5;
            --darker-bg: #e0e5eb;
            --darkest-bg: #d0d6e0;
            --card-bg: rgba(255, 255, 255, 0.8);
            --text-color: #333333;
            --text-muted: #666666;
        }

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

        body {
            font-family: 'Orbitron', 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            margin: 0;
            padding: 0;
            background-color: var(--dark-bg);
            color: var(--text-color);
            background-image: 
                radial-gradient(circle at 25% 25%, rgba(0, 247, 255, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 75% 75%, rgba(0, 102, 255, 0.05) 0%, transparent 50%);
            overflow-x: hidden;
            -webkit-tap-highlight-color: transparent;
            padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            line-height: 1.6;
        }

        /* Windows 高对比度模式适配 */
        @media (-ms-high-contrast: active) {
            body {
                background: black !important;
            }
            .tv-channel {
                border: 2px solid white !important;
            }
        }

        /* 性能优化 */
        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }

        /* 滚动条样式 */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }

        ::-webkit-scrollbar-track {
            background: var(--darker-bg);
        }

        ::-webkit-scrollbar-thumb {
            background: var(--primary-color);
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary-dark);
        }

        /* 布局组件 */
        header {
            background: linear-gradient(135deg, var(--darker-bg) 0%, rgba(10, 10, 26, 0.9) 100%);
            color: white;
            padding: calc(20px + var(--safe-area-inset-top)) 0 30px;
            text-align: center;
            border-bottom: 1px solid var(--primary-color);
            box-shadow: 0 0 20px rgba(0, 247, 255, 0.2);
            position: relative;
            overflow: hidden;
            backdrop-filter: blur(var(--glass-blur));
            -webkit-backdrop-filter: blur(var(--glass-blur));
            z-index: 10;
        }

        header::before {
            content: "";
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(0, 247, 255, 0.1) 0%, transparent 70%);
            animation: pulse 15s infinite linear;
            z-index: -1;
        }

        .container {
            width: 92%;
            max-width: 1400px;
            margin: 30px auto;
            position: relative;
            z-index: 1;
            padding: 0 15px;
            flex: 1;
        }

        footer {
            background: linear-gradient(180deg, transparent 0%, var(--darker-bg) 100%);
            color: var(--text-color);
            text-align: center;
            padding: 25px 0 calc(25px + var(--safe-area-inset-bottom));
            position: relative;
            border-top: 1px solid var(--secondary-color);
            backdrop-filter: blur(var(--glass-blur));
            -webkit-backdrop-filter: blur(var(--glass-blur));
            margin-top: 40px;
        }

        /* 卡片样式 */
        .tv-channel {
            background: var(--card-bg);
            border-radius: var(--border-radius);
            padding: 25px;
            margin-bottom: 25px;
            border: 1px solid var(--secondary-color);
            box-shadow: var(--box-shadow);
            transition: all var(--transition-speed) ease;
            backdrop-filter: blur(var(--glass-blur));
            -webkit-backdrop-filter: blur(var(--glass-blur));
            position: relative;
            overflow: hidden;
        }

        .tv-channel:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 40px rgba(0, 102, 255, 0.4);
        }

        .tv-channel::after {
            content: "";
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(0, 247, 255, 0.1), transparent);
            transition: all 0.6s ease;
        }

        .tv-channel:hover::after {
            left: 100%;
        }

        .domain-info {
            background: rgba(0, 102, 255, 0.1);
            padding: 25px;
            border-radius: var(--border-radius);
            margin-bottom: 35px;
            border: 1px solid var(--primary-color);
            box-shadow: 0 0 30px rgba(0, 247, 255, 0.15);
            position: relative;
            backdrop-filter: blur(var(--glass-blur));
            -webkit-backdrop-filter: blur(var(--glass-blur));
        }

        .domain-info::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
        }

        /* 文字样式 */
        h1, h2, h3, h4 {
            text-shadow: 0 0 10px rgba(0, 247, 255, 0.5);
            letter-spacing: 1px;
            font-weight: 700;
            margin-bottom: 15px;
        }

        h1 {
            font-size: clamp(2rem, 6vw, 3rem);
            margin-bottom: 10px;
            color: var(--primary-color);
            position: relative;
            z-index: 2;
            line-height: 1.2;
        }

        h2 {
            font-size: clamp(1.5rem, 5vw, 2.2rem);
            margin-top: 30px;
        }

        h3 {
            font-size: clamp(1.2rem, 4vw, 1.6rem);
            color: var(--primary-color);
        }

        h4 {
            font-size: clamp(1rem, 3.5vw, 1.3rem);
        }

        p {
            font-size: clamp(0.95rem, 3vw, 1.05rem);
            line-height: 1.7;
            color: var(--text-color);
            margin-bottom: 15px;
        }

        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: color var(--transition-speed) ease;
        }

        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }

        .text-muted {
            color: var(--text-muted);
        }

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

        /* 动画效果 */
        @keyframes pulse {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .glowing-text {
            animation: glow 2s ease-in-out infinite alternate;
        }

        @keyframes glow {
            from { 
                text-shadow: 0 0 5px #fff, 0 0 10px #fff, 0 0 15px var(--primary-color), 0 0 20px var(--primary-color); 
            }
            to { 
                text-shadow: 0 0 10px #fff, 0 0 20px #fff, 0 0 30px var(--primary-color), 0 0 40px var(--primary-color); 
            }
        }

        .pulse {
            animation: pulse 1.5s infinite ease-in-out;
        }

        /* 背景元素 */
        .tech-grid {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: 
                linear-gradient(rgba(0, 247, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0, 247, 255, 0.03) 1px, transparent 1px);
            background-size: 40px 40px;
            z-index: 0;
            pointer-events: none;
        }

        .particles {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 0;
            pointer-events: none;
        }

        /* 按钮样式 */
        .btn {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            border: none;
            color: var(--darkest-bg);
            padding: 14px 28px;
            border-radius: 50px;
            font-family: 'Orbitron', sans-serif;
            font-weight: bold;
            cursor: pointer;
            transition: all var(--transition-speed) ease;
            box-shadow: 0 0 20px rgba(0, 247, 255, 0.4);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: clamp(0.85rem, 3vw, 0.95rem);
            user-select: none;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .btn::before {
            content: "";
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: all 0.6s ease;
        }

        .btn:hover::before {
            left: 100%;
        }

        .btn:hover, .btn:active {
            transform: translateY(-3px) scale(1.03);
            box-shadow: 0 5px 30px rgba(0, 247, 255, 0.6);
            text-decoration: none;
        }

        .btn:active {
            transform: translateY(1px) scale(0.98);
        }

        .btn-accent {
            background: linear-gradient(135deg, var(--accent-color) 0%, #ff0066 100%);
            box-shadow: 0 0 20px rgba(255, 0, 170, 0.4);
        }

        .btn-accent:hover {
            box-shadow: 0 5px 30px rgba(255, 0, 170, 0.6);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary-color);
            border: 2px solid var(--primary-color);
            box-shadow: none;
        }

        .btn-outline:hover {
            background: rgba(0, 247, 255, 0.1);
        }

        .btn-sm {
            padding: 10px 20px;
            font-size: 0.85rem;
        }

        .btn-icon {
            width: 40px;
            height: 40px;
            padding: 0;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        /* 网格布局 */
        .channel-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 25px;
            margin-top: 30px;
        }

        /* 状态指示器 */
        .status-indicator {
            display: inline-block;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            margin-right: 8px;
            background-color: var(--success-color);
            box-shadow: 0 0 10px var(--success-color);
        }

        .status-offline {
            background-color: var(--error-color);
            box-shadow: 0 0 10px var(--error-color);
        }

        .status-warning {
            background-color: var(--warning-color);
            box-shadow: 0 0 10px var(--warning-color);
        }

        /* 跳转按钮 */
        .jump-btn {
            position: fixed;
            bottom: calc(30px + var(--safe-area-inset-bottom));
            right: calc(30px + var(--safe-area-inset-right));
            z-index: 100;
            background: linear-gradient(135deg, var(--accent-color) 0%, #ff0066 100%);
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 25px rgba(255, 0, 170, 0.5);
            animation: pulse-jump 2s infinite;
            cursor: pointer;
            transition: all var(--transition-speed) ease;
            -webkit-tap-highlight-color: transparent;
        }

        .jump-btn:hover {
            animation: none;
            transform: scale(1.1);
            box-shadow: 0 0 35px rgba(255, 0, 170, 0.7);
        }

        .jump-btn:active {
            transform: scale(0.95);
        }

        .jump-btn i {
            color: white;
            font-size: 24px;
        }

        @keyframes pulse-jump {
            0% { transform: scale(1); box-shadow: 0 0 25px rgba(255, 0, 170, 0.5); }
            50% { transform: scale(1.1); box-shadow: 0 0 35px rgba(255, 0, 170, 0.7); }
            100% { transform: scale(1); box-shadow: 0 0 25px rgba(255, 0, 170, 0.5); }
        }

        /* 跳转面板 */
        .overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.8);
            z-index: 150;
            display: none;
            backdrop-filter: blur(5px);
            -webkit-backdrop-filter: blur(5px);
            opacity: 0;
            transition: opacity var(--transition-speed) ease;
        }

        .overlay.active {
            opacity: 1;
        }

        .jump-panel {
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%) scale(0.9);
            background: rgba(10, 10, 30, 0.98);
            border: 2px solid var(--primary-color);
            border-radius: var(--border-radius);
            padding: 30px;
            z-index: 200;
            box-shadow: 0 0 50px rgba(0, 247, 255, 0.3);
            display: none;
            width: 95%;
            max-width: 600px;
            max-height: 85vh;
            overflow-y: auto;
            -webkit-overflow-scrolling: touch;
            opacity: 0;
            transition: all var(--transition-speed) ease;
            backdrop-filter: blur(var(--glass-blur));
            -webkit-backdrop-filter: blur(var(--glass-blur));
        }

        .jump-panel.active {
            transform: translate(-50%, -50%) scale(1);
            opacity: 1;
        }

        .jump-panel h3 {
            margin-top: 0;
            color: var(--primary-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .jump-options {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 15px;
            margin-top: 25px;
        }

        .jump-option {
            background: rgba(0, 102, 255, 0.15);
            border: 1px solid var(--secondary-color);
            border-radius: var(--border-radius);
            padding: 20px;
            cursor: pointer;
            transition: all var(--transition-speed) ease;
            text-align: center;
            -webkit-tap-highlight-color: transparent;
            position: relative;
            overflow: hidden;
        }

        .jump-option:hover {
            background: rgba(0, 102, 255, 0.3);
            transform: translateY(-5px);
            box-shadow: 0 5px 15px rgba(0, 102, 255, 0.3);
        }

        .jump-option:active {
            transform: translateY(0);
        }

        .jump-option h4 {
            color: var(--primary-color);
            margin-bottom: 5px;
        }

        .jump-option p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        .close-panel {
            position: absolute;
            top: 15px;
            right: 15px;
            background: transparent;
            border: none;
            color: var(--primary-color);
            font-size: 24px;
            cursor: pointer;
            padding: 5px;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: all var(--transition-speed) ease;
        }

        .close-panel:hover {
            background: rgba(0, 247, 255, 0.1);
            transform: rotate(90deg);
        }

        /* 主题切换器 */
        .theme-switcher {
            position: fixed;
            bottom: calc(100px + var(--safe-area-inset-bottom));
            right: calc(30px + var(--safe-area-inset-right));
            z-index: 100;
            background: rgba(0, 102, 255, 0.2);
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition-speed) ease;
            backdrop-filter: blur(5px);
            -webkit-backdrop-filter: blur(5px);
            border: 1px solid var(--secondary-color);
        }

        .theme-switcher:hover {
            background: rgba(0, 102, 255, 0.3);
            transform: scale(1.1);
        }

        .theme-switcher i {
            color: var(--primary-color);
            font-size: 20px;
        }

        /* 通知系统 */
        .notification {
            position: fixed;
            top: calc(20px + var(--safe-area-inset-top));
            right: 20px;
            background: var(--card-bg);
            border-left: 4px solid var(--primary-color);
            padding: 15px 20px;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            z-index: 300;
            transform: translateX(150%);
            transition: transform var(--transition-speed) ease;
            backdrop-filter: blur(var(--glass-blur));
            -webkit-backdrop-filter: blur(var(--glass-blur));
            max-width: 350px;
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .notification.show {
            transform: translateX(0);
        }

        .notification i {
            font-size: 24px;
            color: var(--primary-color);
        }

        .notification.success {
            border-left-color: var(--success-color);
        }

        .notification.success i {
            color: var(--success-color);
        }

        .notification.error {
            border-left-color: var(--error-color);
        }

        .notification.error i {
            color: var(--error-color);
        }

        .notification.warning {
            border-left-color: var(--warning-color);
        }

        .notification.warning i {
            color: var(--warning-color);
        }

        /* 加载指示器 */
        .loader {
            display: inline-block;
            width: 40px;
            height: 40px;
            border: 4px solid rgba(0, 247, 255, 0.2);
            border-radius: 50%;
            border-top-color: var(--primary-color);
            animation: spin 1s ease-in-out infinite;
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        /* 响应式设计 */
        @media (max-width: 1200px) {
            .channel-grid {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            }
        }

        @media (max-width: 768px) {
            .container {
                width: 95%;
                padding: 0 10px;
            }

            .channel-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .jump-options {
                grid-template-columns: 1fr;
            }

            .jump-btn, .theme-switcher {
                width: 50px;
                height: 50px;
            }

            .jump-btn {
                bottom: calc(20px + var(--safe-area-inset-bottom));
                right: calc(20px + var(--safe-area-inset-right));
            }

            .theme-switcher {
                bottom: calc(85px + var(--safe-area-inset-bottom));
                right: calc(20px + var(--safe-area-inset-right));
            }
        }

        @media (max-width: 480px) {
            header {
                padding: calc(15px + var(--safe-area-inset-top)) 0 20px;
            }

            .domain-info {
                padding: 20px;
            }

            .tv-channel {
                padding: 20px;
            }

            .jump-panel {
                padding: 20px;
            }
        }

        /* 触摸设备优化 */
        @media (hover: none) {
            .tv-channel:hover {
                transform: none;
                box-shadow: var(--box-shadow);
            }

            .btn:hover, .btn:active {
                transform: none;
                box-shadow: 0 0 20px rgba(0, 247, 255, 0.4);
            }

            .btn:active {
                transform: scale(0.98);
            }

            .jump-option:hover {
                transform: none;
                box-shadow: none;
            }

            .jump-option:active {
                background: rgba(0, 102, 255, 0.3);
            }
        }

             .content {
                max-width: 900px;
                margin: 50px auto;
                background: rgba(255, 255, 255, 0.03);
                padding: 30px;
                border-radius: 12px;
                box-shadow: 0 4px 18px rgba(0, 0, 0, 0.4);
            }

            .content h1 {
                color: #10b981;
                font-size: 28px;
                margin-bottom: 10px;
            }

            .content h2 {
                margin-top: 24px;
                color: #06b6d4;
            }

            .content p,
            
            .content ul {
                color: #cbd5e1;
                line-height: 1.7;
            }

            .back-home {display: inline-block;
                margin-top: 30px;
                padding: 8px 14px;
                background-color: #27c0db;
                color: #000000;
                text-decoration: none;
                border-radius: 8px;
                transition: 0.2s;
            }


            .back-home:hover {
                background-color: #ffffff;
            }