/* ========== 404页面独享部分 ========== */
        /* 404内容区域 - 水平居中 */
        .error-section {
            min-height: calc(100vh - 180px);
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 180px 0 100px;
            position: relative;
            overflow: hidden;
        }

        .error-container {
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        /* 404数字样式 */
        .error-number {
            font-size: 15rem;
            font-weight: 900;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1rem;
            line-height: 1;
            position: relative;
            display: inline-block;
        }

        .error-number::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--gradient-secondary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            z-index: -1;
            animation: errorGlitch 3s infinite;
        }

        @keyframes errorGlitch {
            0%, 100% { transform: translateX(0); opacity: 1; }
            10% { transform: translateX(-5px); opacity: 0.8; }
            20% { transform: translateX(5px); opacity: 0.9; }
            30% { transform: translateX(-3px); opacity: 0.7; }
            40% { transform: translateX(3px); opacity: 0.9; }
            50% { transform: translateX(0); opacity: 1; }
        }

        /* 错误标题样式 */
        .error-title {
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            color: var(--primary);
        }

        .error-title::after {
            left: 50%;
            transform: translateX(-50%);
        }

        /* 错误描述样式 */
        .error-description {
            font-size: 1.2rem;
            max-width: 600px;
            margin: 0 auto 3rem;
            color: var(--gray);
        }

        /* 404几何装饰元素 */
        .error-geometric {
            position: absolute;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 20px;
            z-index: 1;
            opacity: 0.7;
        }

        .error-geo-1 {
            width: 150px;
            height: 150px;
            top: 20%;
            left: 10%;
            background: var(--gradient-primary);
            transform: rotate(45deg);
            animation: float 8s ease-in-out infinite;
        }

        .error-geo-2 {
            width: 120px;
            height: 120px;
            bottom: 20%;
            right: 10%;
            background: var(--gradient-secondary);
            border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
            animation: float 10s ease-in-out infinite reverse;
        }

        .error-geo-3 {
            width: 100px;
            height: 100px;
            top: 40%;
            right: 15%;
            background: var(--gradient-accent);
            border-radius: 50% 20% 80% 30% / 30% 70% 30% 70%;
            animation: float 12s ease-in-out infinite;
        }

        .error-geo-4 {
            width: 80px;
            height: 80px;
            bottom: 30%;
            left: 15%;
            background: var(--gradient-secondary);
            transform: rotate(30deg);
            animation: float 9s ease-in-out infinite reverse;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0) rotate(0deg); }
            50% { transform: translateY(-20px) rotate(5deg); }
        }

        /* 操作按钮容器 */
        .error-actions {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-top: 3rem;
            flex-wrap: wrap;
        }

        /* 404页面按钮变体 */
        .btn-secondary {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }

        .btn-secondary::before {
            background: var(--gradient-primary);
        }

        .btn-secondary:hover {
            color: white;
        }

        /* 搜索框样式 */
        .error-search {
            max-width: 500px;
            margin: 2rem auto 0;
            position: relative;
        }

        .error-search input {
            width: 100%;
            padding: 18px 30px;
            border: 2px solid rgba(45, 50, 80, 0.1);
            border-radius: 50px;
            font-size: 1rem;
            font-family: 'Manrope', sans-serif;
            transition: var(--transition);
            background: white;
        }

        .error-search input:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 5px 20px rgba(108, 99, 255, 0.1);
        }

        .error-search button {
            position: absolute;
            right: 8px;
            top: 8px;
            background: var(--gradient-primary);
            color: white;
            border: none;
            border-radius: 50px;
            padding: 12px 28px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }

        .error-search button:hover {
            background: var(--gradient-secondary);
            transform: translateY(-2px);
        }

        /* 响应式设计 - 404页面独享部分 */
        @media (max-width: 1100px) {
            .error-number {
                font-size: 12rem;
            }
            
            .error-title {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .error-section {
                padding: 150px 0 80px;
            }
            
            .error-number {
                font-size: 10rem;
            }
            
            .error-title {
                font-size: 1.8rem;
            }
            
            .error-actions {
                flex-direction: column;
                align-items: center;
            }
            
            .error-actions .btn {
                width: 100%;
                max-width: 300px;
            }
        }

        @media (max-width: 576px) {
            .error-number {
                font-size: 8rem;
            }
            
            .error-title {
                font-size: 1.5rem;
            }
            
            .error-description {
                font-size: 1rem;
            }
            
            .error-search {
                padding: 0 15px;
            }
            
            .error-search input {
                padding: 15px 20px;
            }
            
            .error-search button {
                position: relative;
                width: 100%;
                margin-top: 15px;
                right: 0;
                top: 0;
            }
        }