/* ===== 404页面独享CSS ===== */
        .page-header {
            background-color: var(--primary-color);
            color: white;
            padding: 150px 0 80px;
            text-align: center;
            margin-top: 70px;
        }

        .page-header h1 {
            font-size: 42px;
            margin-bottom: 20px;
            text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
        }

        .page-header p {
            font-size: 18px;
            max-width: 700px;
            margin: 0 auto;
            opacity: 0.9;
        }

        .error-section {
            padding: 100px 0;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 60vh;
        }

        .error-container {
            text-align: center;
            max-width: 600px;
            margin: 0 auto;
            padding: 60px 40px;
            background-color: white;
            border-radius: 15px;
            box-shadow: var(--shadow);
            position: relative;
            overflow: hidden;
        }

        .error-container::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(45deg, transparent, rgba(201, 163, 94, 0.1), transparent);
            transform: rotate(45deg);
            animation: errorShine 3s infinite linear;
        }

        @keyframes errorShine {
            0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
            100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
        }

        .error-number {
            font-size: 120px;
            font-weight: 900;
            color: var(--primary-color);
            line-height: 1;
            margin-bottom: 20px;
            position: relative;
            display: inline-block;
        }

        .error-number::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 100px;
            height: 5px;
            background-color: var(--secondary-color);
            border-radius: 5px;
        }

        .error-title {
            font-size: 32px;
            color: var(--primary-color);
            margin-bottom: 20px;
        }

        .error-description {
            font-size: 18px;
            color: #666;
            margin-bottom: 40px;
            line-height: 1.6;
        }

        .error-actions {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--secondary-color);
            color: var(--primary-color);
            padding: 12px 30px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 700;
            transition: var(--transition);
            border: 2px solid var(--secondary-color);
            gap: 8px;
        }

        .btn:hover {
            background-color: transparent;
            color: var(--secondary-color);
        }

        .btn-outline {
            background-color: transparent;
            color: var(--primary-color);
            border: 2px solid var(--primary-color);
        }

        .btn-outline:hover {
            background-color: var(--primary-color);
            color: white;
        }

        .error-search {
            margin-top: 40px;
            position: relative;
        }

        .search-input {
            width: 100%;
            padding: 15px 20px;
            border: 2px solid #e0e0e0;
            border-radius: 30px;
            font-size: 16px;
            transition: var(--transition);
            outline: none;
        }

        .search-input:focus {
            border-color: var(--secondary-color);
            box-shadow: 0 0 0 3px rgba(201, 163, 94, 0.2);
        }

        .search-btn {
            position: absolute;
            right: 5px;
            top: 5px;
            background-color: var(--primary-color);
            color: white;
            border: none;
            border-radius: 30px;
            padding: 10px 20px;
            cursor: pointer;
            transition: var(--transition);
        }

        .search-btn:hover {
            background-color: var(--secondary-color);
        }

        .error-links {
            margin-top: 40px;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
        }

        .error-link {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
            font-weight: 600;
            position: relative;
            padding: 5px 0;
        }

        .error-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--secondary-color);
            transition: var(--transition);
        }

        .error-link:hover {
            color: var(--secondary-color);
        }

        .error-link:hover::after {
            width: 100%;
        }

        .error-animation {
            margin-top: 40px;
            position: relative;
            height: 100px;
            overflow: hidden;
        }

        .floating-icon {
            position: absolute;
            font-size: 24px;
            color: var(--secondary-color);
            opacity: 0.7;
            animation: float 3s infinite ease-in-out;
        }

        @keyframes float {
            0% { transform: translateY(0) rotate(0deg); }
            50% { transform: translateY(-20px) rotate(10deg); }
            100% { transform: translateY(0) rotate(0deg); }
        }

        .floating-icon:nth-child(1) {
            left: 10%;
            animation-delay: 0s;
        }

        .floating-icon:nth-child(2) {
            left: 30%;
            animation-delay: 0.5s;
        }

        .floating-icon:nth-child(3) {
            left: 50%;
            animation-delay: 1s;
        }

        .floating-icon:nth-child(4) {
            left: 70%;
            animation-delay: 1.5s;
        }

        .floating-icon:nth-child(5) {
            left: 90%;
            animation-delay: 2s;
        }

        /* 响应式设计 */
        @media (max-width: 992px) {
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .navbar {
                flex-wrap: wrap;
            }
            
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                margin-top: 20px;
            }
            
            .nav-links.active {
                display: flex;
            }
            
            .nav-links li {
                margin: 10px 0;
            }
            
            .mobile-menu {
                display: block;
            }
            
            .page-header h1 {
                font-size: 36px;
            }
            
            .page-header p {
                font-size: 16px;
            }
            
            .error-number {
                font-size: 80px;
            }
            
            .error-title {
                font-size: 28px;
            }
            
            .error-actions {
                flex-direction: column;
                align-items: center;
            }
            
            .btn {
                width: 100%;
                max-width: 250px;
            }
        }

        @media (max-width: 576px) {
            .footer-content {
                grid-template-columns: 1fr;
            }
            
            .error-section {
                padding: 60px 0;
            }
            
            .contact-phone {
                font-size: 16px;
            }
            
            .error-container {
                padding: 40px 20px;
            }
            
            .error-number {
                font-size: 60px;
            }
            
            .error-title {
                font-size: 24px;
            }
            
            .error-description {
                font-size: 16px;
            }
        }