* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft YaHei", sans-serif;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 30px 20px;
        }

        /* 图片占位区域 */
        .image-placeholder {
            margin-top: 100px;
            height: 200px;
            background: #f5f5f5;
            margin-bottom: 40px;
            border-radius: 8px;
            overflow: hidden;
        }

        .image-placeholder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .title {
            font-size: clamp(1.8rem, 4vw, 2.2rem);
            color: #333;
            margin-bottom: 40px;
            text-align: center;
        }

        .contact-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin: 0 auto;
            max-width: 1200px;
        }

        .contact-column {
            padding: 20px;
            background: #fff;
            border-radius: 8px;
            box-shadow: 0 2px 15px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }

        .contact-column:hover {
            transform: translateY(-5px);
        }

        .column-title {
            font-size: clamp(1.1rem, 2vw, 1.2rem);
            color: #2c3e50;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #3498db;
        }

        .contact-item {
            margin: 12px 0;
            font-size: clamp(0.9rem, 1.5vw, 0.95rem);
            color: #555;
            line-height: 1.5;
        }

        .contact-item a {
            color: #3498db;
            text-decoration: none;
            transition: color 0.3s;
            display: inline-block;
        }

        .contact-item a:hover {
            color: #2980b9;
        }

        /* 响应式布局增强 */
        @media (max-width: 768px) {
            .container {
                padding: 20px 15px;
            }
            
            .title {
                margin-bottom: 30px;
            }
            
            .contact-grid {
                gap: 20px;
                padding: 0 10px;
            }

            .image-placeholder {
                margin-top: 60px;
                height: 150px;
            }
        }

        /* 平板设备适配 */
        @media (min-width: 769px) and (max-width: 1024px) {
            .container {
                padding: 25px;
            }
            
            .contact-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 25px;
            }
            
            .image-placeholder {
                margin-top: 80px;
                height: 180px;
            }
        }

        /* 确保在小屏幕设备上的可读性 */
        @media (max-width: 576px) {
            .contact-grid {
                grid-template-columns: 1fr;
            }
            
            .contact-column {
                padding: 15px;
            }
            
            .contact-item {
                font-size: 0.9rem;
            }
            
            .image-placeholder {
                margin-top: 50px;
                height: 120px;
            }
        }