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

        :root {
            --bg-color: rgba(255, 255, 255, 0.25);
            --text-color: #000000;
            --border-color: rgba(255, 255, 255, 0.4);
            --shadow-color: rgba(0, 0, 0, 0.1);
            --code-bg: rgba(255, 255, 255, 0.3);
            --link-color: #0070f3;
            --tooltip-bg: #000000;
            --tooltip-text: #ffffff;
        }

        @media (prefers-color-scheme: dark) {
            :root {
                --text-color: #ffffff;
                --border-color: rgba(255, 255, 255, 0.25);
                --shadow-color: rgba(0, 0, 0, 0.3);
                --code-bg: rgba(0, 0, 0, 0.3);
                --link-color: #60a5fa;
                --tooltip-bg: #ffffff;
                --tooltip-text: #000000;
            }
        }

        html {
            font-size: 62.5%;
            height: -webkit-fill-available;
        }

        body {
            font-family: 'Quicksand', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            font-size: 1.6rem;
            line-height: 1.6;
            min-height: 100vh;
            min-height: -webkit-fill-available;
            
            /* 背景图设置 - 确保不应用模糊 */
            background-image: url('https://www.loliapi.com/bg/');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            background-attachment: fixed;
            
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 2rem;
            
            color: var(--text-color);
        }

        /* 半透明遮罩层，增强可读性 */
        body::before {
            content: "";
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.3);
            z-index: -1;
        }

        /* 主容器 - 毛玻璃效果 */
        .main-container {
            max-width: 60rem;
            width: 100%;
            background: var(--bg-color);
            backdrop-filter: blur(20px) saturate(180%);
            -webkit-backdrop-filter: blur(20px) saturate(180%);
            
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 4rem;
            box-shadow: 0 8px 32px var(--shadow-color);
            
            text-align: center;
        }

        /* 404标题 */
        .error-title {
            font-size: 12rem;
            font-weight: 700;
            margin: 0 0 1rem;
            line-height: 1;
        }

        /* 状态说明 */
        .error-message {
            font-size: 2rem;
            font-weight: 500;
            margin-bottom: 1rem;
        }

        .error-detail {
            font-size: 1.4rem;
            opacity: 0.8;
            margin-bottom: 3rem;
        }

        code {
            background: var(--code-bg);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-family: 'Courier New', monospace;
        }

        /* 分割线 */
        .divider {
            height: 1px;
            background: var(--border-color);
            margin: 3rem 0;
        }

        /* 版权信息 */
        .copyright {
            font-size: 1.4rem;
            opacity: 0.8;
            margin-bottom: 1.5rem;
        }

        .copyright i {
            color: #e74c3c;
        }

        /* GitHub图标 */
        .social-links {
            display: flex;
            justify-content: center;
            gap: 2rem;
        }

        .social-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 4rem;
            height: 4rem;
            border-radius: 50%;
            background: var(--code-bg);
            color: var(--text-color);
            text-decoration: none;
            transition: all 0.3s ease;
            position: relative;
        }

        .social-link:hover {
            background: var(--link-color);
            color: white;
            transform: translateY(-2px);
        }

        /* 悬浮提示 */
        .tooltip {
            position: absolute;
            bottom: -3.5rem;
            left: 50%;
            transform: translateX(-50%);
            background: var(--tooltip-bg);
            color: var(--tooltip-text);
            padding: 0.5rem 1rem;
            border-radius: 4px;
            font-size: 1.2rem;
            white-space: nowrap;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s;
            font-weight: 500;
        }

        .social-link:hover .tooltip {
            opacity: 1;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            html {
                font-size: 56.25%;
            }
            
            .main-container {
                padding: 3rem;
            }
            
            .error-title {
                font-size: 8rem;
            }
            
            .error-message {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 480px) {
            html {
                font-size: 50%;
            }
            
            .main-container {
                padding: 2rem;
                border-radius: 16px;
            }
            
            .error-title {
                font-size: 6rem;
            }
        }

        /* 打印样式 */
        @media print {
            body {
                background: white !important;
            }
            
            .main-container {
                backdrop-filter: none !important;
                background: white !important;
                border: 1px solid #ccc !important;
            }
        }