/* ===== 404页面独享CSS部分 ===== */
        
        /* 页面标题区域 */
        .page-header {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
            color: white;
            padding: 120px 0 60px;
            margin-top: 70px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .page-header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.1)" d="M0,224L48,213.3C96,203,192,181,288,181.3C384,181,480,203,576,202.7C672,203,768,181,864,170.7C960,160,1056,160,1152,170.7C1248,181,1344,203,1392,213.3L1440,224L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
            background-size: cover;
            background-position: center;
            animation: wave 10s infinite linear;
        }
        
        @keyframes wave {
            0% {
                transform: translateX(0);
            }
            50% {
                transform: translateX(-50px);
            }
            100% {
                transform: translateX(0);
            }
        }
        
        .page-header-content {
            position: relative;
            z-index: 2;
        }
        
        .page-header h1 {
            font-size: 3rem;
            margin-bottom: 15px;
            animation: fadeInDown 0.8s ease;
        }
        
        .page-header p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto;
            animation: fadeInUp 0.8s 0.2s ease both;
        }
        
        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        /* 404内容区域 - 水平居中 */
        .error-section {
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 60vh;
            padding: 80px 0;
        }
        
        .error-container {
            text-align: center;
            max-width: 700px;
            width: 100%;
            background: white;
            border-radius: 10px;
            box-shadow: var(--shadow);
            padding: 60px 40px;
            position: relative;
            overflow: hidden;
            opacity: 0;
            transform: translateY(30px);
            animation: fadeInUp 0.8s 0.3s forwards;
            /* 确保水平居中 */
            margin: 0 auto;
        }
        
        .error-container::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--accent-color));
            animation: gradientMove 3s infinite linear;
        }
        
        @keyframes gradientMove {
            0% {
                background-position: 0% 50%;
            }
            50% {
                background-position: 100% 50%;
            }
            100% {
                background-position: 0% 50%;
            }
        }
        
        .error-number {
            font-size: 8rem;
            font-weight: 900;
            color: var(--primary-color);
            margin-bottom: 20px;
            position: relative;
            display: inline-block;
            animation: numberPulse 2s infinite alternate;
        }
        
        @keyframes numberPulse {
            0% {
                transform: scale(1);
                text-shadow: 0 0 10px rgba(26, 60, 110, 0.3);
            }
            100% {
                transform: scale(1.05);
                text-shadow: 0 0 20px rgba(212, 175, 55, 0.5);
            }
        }
        
        .error-title {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }
        
        .error-description {
            font-size: 1.2rem;
            color: var(--text-color);
            margin-bottom: 30px;
            line-height: 1.6;
        }
        
        .error-actions {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        
        /* 搜索框样式 */
        .search-box {
            max-width: 500px;
            margin: 30px auto;
            position: relative;
        }
        
        .search-input {
            width: 100%;
            padding: 15px 20px;
            border: 2px solid var(--light-color);
            border-radius: 50px;
            font-size: 1rem;
            transition: var(--transition);
            outline: none;
        }
        
        .search-input:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(26, 60, 110, 0.1);
        }
        
        .search-button {
            position: absolute;
            right: 5px;
            top: 5px;
            background: var(--primary-color);
            color: white;
            border: none;
            border-radius: 50px;
            padding: 10px 20px;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .search-button:hover {
            background: var(--accent-color);
        }
        
        /* 推荐链接 */
        .recommended-links {
            margin-top: 50px;
        }
        
        .recommended-links h3 {
            font-size: 1.5rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }
        
        .links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 15px;
        }
        
        .link-item {
            background: var(--light-color);
            padding: 15px;
            border-radius: 8px;
            transition: var(--transition);
            text-align: center;
        }
        
        .link-item:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-5px);
        }
        
        .link-item i {
            margin-right: 8px;
            color: var(--secondary-color);
        }
        
        .link-item:hover i {
            color: white;
        }
        
        /* 动画元素 */
        .floating-elements {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: -1;
        }
        
        .floating-element {
            position: absolute;
            background: rgba(26, 60, 110, 0.05);
            border-radius: 50%;
            animation: float 15s infinite linear;
        }
        
        .floating-element:nth-child(1) {
            width: 80px;
            height: 80px;
            top: 10%;
            left: 10%;
            animation-delay: 0s;
        }
        
        .floating-element:nth-child(2) {
            width: 60px;
            height: 60px;
            top: 60%;
            left: 80%;
            animation-delay: 2s;
        }
        
        .floating-element:nth-child(3) {
            width: 100px;
            height: 100px;
            top: 30%;
            left: 70%;
            animation-delay: 4s;
        }
        
        .floating-element:nth-child(4) {
            width: 70px;
            height: 70px;
            top: 70%;
            left: 20%;
            animation-delay: 6s;
        }
        
        @keyframes float {
            0% {
                transform: translateY(0) rotate(0deg);
            }
            50% {
                transform: translateY(-20px) rotate(180deg);
            }
            100% {
                transform: translateY(0) rotate(360deg);
            }
        }
        
        /* 响应式调整 */
        @media (max-width: 768px) {
            .error-number {
                font-size: 6rem;
            }
            
            .error-title {
                font-size: 2rem;
            }
            
            .error-actions {
                flex-direction: column;
                align-items: center;
            }
            
            .error-container {
                padding: 40px 20px;
            }
        }
        
        @media (max-width: 480px) {
            .error-number {
                font-size: 4rem;
            }
            
            .error-title {
                font-size: 1.5rem;
            }
            
            .error-description {
                font-size: 1rem;
            }
        }