/* 独享CSS部分 - 404页面 */
        .error-section {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 120px 0 80px;
        }

        .error-content {
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
            padding: 60px 40px;
            background: var(--light-color);
            border-radius: 15px;
            box-shadow: var(--shadow);
            position: relative;
            transform: translateY(30px);
            opacity: 0;
            transition: all 0.6s ease;
        }

        .error-content.animated {
            transform: translateY(0);
            opacity: 1;
        }

        .error-content::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(212,175,55,0.05) 0%, rgba(26,54,93,0.05) 100%);
            border-radius: 15px;
            z-index: -1;
        }

        .error-number {
            font-size: 10rem;
            font-weight: 900;
            color: var(--primary-color);
            margin-bottom: 20px;
            position: relative;
            display: inline-block;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }

        .error-number::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(212,175,55,0.2) 0%, transparent 70%);
            border-radius: 50%;
            z-index: -1;
        }

        .error-title {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }

        .error-message {
            font-size: 1.2rem;
            color: #666;
            margin-bottom: 40px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

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

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

        .btn-secondary {
            background: var(--primary-color);
            color: var(--light-color);
        }

        .error-search {
            margin-top: 40px;
            position: relative;
            max-width: 400px;
            margin-left: auto;
            margin-right: auto;
        }

        .error-search input {
            width: 100%;
            padding: 15px 50px 15px 20px;
            border: 2px solid #e2e8f0;
            border-radius: 30px;
            font-size: 1rem;
            transition: var(--transition);
        }

        .error-search input:focus {
            outline: none;
            border-color: var(--secondary-color);
            box-shadow: 0 0 0 3px rgba(212,175,55,0.2);
        }

        .error-search button {
            position: absolute;
            right: 5px;
            top: 5px;
            background: var(--secondary-color);
            color: var(--primary-color);
            border: none;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }

        .error-search button:hover {
            background: #b8941f;
            transform: scale(1.05);
        }

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

        .error-links a {
            color: var(--primary-color);
            font-weight: 500;
            transition: var(--transition);
            padding: 5px 10px;
            border-radius: 4px;
        }

        .error-links a:hover {
            color: var(--secondary-color);
            background: rgba(212,175,55,0.1);
        }

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

        @media screen and (max-width: 768px) {
            .hamburger {
                display: block;
            }

            .hamburger.active .bar:nth-child(2) {
                opacity: 0;
            }

            .hamburger.active .bar:nth-child(1) {
                transform: translateY(8px) rotate(45deg);
            }

            .hamburger.active .bar:nth-child(3) {
                transform: translateY(-8px) rotate(-45deg);
            }

            .nav-menu {
                position: fixed;
                left: -100%;
                top: 70px;
                gap: 0;
                flex-direction: column;
                background: var(--primary-color);
                width: 100%;
                text-align: center;
                transition: 0.3s;
                box-shadow: 0 10px 10px rgba(0,0,0,0.1);
                padding: 20px 0;
            }

            .nav-menu.active {
                left: 0;
            }

            .nav-item {
                margin: 15px 0;
            }

            .error-number {
                font-size: 8rem;
            }

            .error-title {
                font-size: 2rem;
            }

            .error-message {
                font-size: 1.1rem;
            }

            .error-content {
                padding: 40px 20px;
            }
        }

        @media screen and (max-width: 576px) {
            .footer-content {
                grid-template-columns: 1fr;
            }

            .error-number {
                font-size: 6rem;
            }

            .error-title {
                font-size: 1.8rem;
            }

            .error-actions {
                flex-direction: column;
                align-items: center;
            }

            .error-actions .btn {
                width: 100%;
                max-width: 250px;
            }
        }