/* 联系我们页面样式 */

/* 联系我们头部 */
.contact-hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
}

.contact-hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.contact-hero p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* 联系信息区域 */
.contact-info-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.contact-info-section h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2.5rem;
    color: #333;
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-item {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.contact-item h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #333;
}

.contact-item p {
    font-size: 1.1rem;
    color: #666;
    margin: 0;
}

/* 联系表单区域 */
.contact-form-section {
    padding: 80px 0;
    background: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
}

/* 联系表单 */
.contact-form-wrapper h2 {
    font-size: 2rem;
    margin-bottom: 30px;
    color: #333;
}

.contact-form {
    background: #f8f9fa;
    padding: 40px;
    border-radius: 15px;
    border: 1px solid #e9ecef;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
    font-size: 1rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    box-sizing: border-box;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.submit-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 15px 40px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    width: 100%;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

.submit-btn:active {
    transform: translateY(0);
}

/* 部门信息 */
.departments-wrapper h2 {
    font-size: 2rem;
    margin-bottom: 30px;
    color: #333;
}

.departments-list {
    space-y: 25px;
}

.department-item {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 12px;
    border-left: 4px solid #667eea;
    margin-bottom: 25px;
}

.department-item h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: #333;
}

.department-item p {
    margin: 8px 0;
    color: #666;
    line-height: 1.6;
}

/* 常见问题区域 */
.faq-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.faq-section h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2.5rem;
    color: #333;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    margin-bottom: 20px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.faq-question {
    background: #667eea;
    color: white;
    padding: 20px 30px;
    margin: 0;
    font-size: 1.2rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background: #5a6fd8;
}

.faq-answer {
    padding: 25px 30px;
    background: white;
}

.faq-answer p {
    margin: 0;
    line-height: 1.7;
    color: #666;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .contact-hero {
        padding: 60px 0;
    }
    
    .contact-hero h1 {
        font-size: 2.5rem;
    }
    
    .contact-info-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
    
    .contact-info-section,
    .contact-form-section,
    .faq-section {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .contact-hero h1 {
        font-size: 2rem;
    }
    
    .contact-hero p {
        font-size: 1rem;
    }
    
    .contact-item {
        padding: 30px 20px;
    }
    
    .contact-form {
        padding: 25px 15px;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 10px 12px;
    }
}

/* 表单验证状态 */
.form-group.error input,
.form-group.error textarea {
    border-color: #dc3545;
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

.form-group.success input,
.form-group.success textarea {
    border-color: #28a745;
    box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.1);
}

.error-message {
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: 5px;
    display: block;
}

/* 提交按钮加载状态 */
.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.submit-btn.loading {
    position: relative;
}

.submit-btn.loading::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 20px;
    height: 20px;
    margin-left: -10px;
    margin-top: -10px;
    border: 2px solid transparent;
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 成功提示 */
.success-message {
    background: #d4edda;
    color: #155724;
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    border: 1px solid #c3e6cb;
    display: none;
}

.success-message.show {
    display: block;
}

/* FAQ展开动画 */
.faq-item.active .faq-question {
    background: #5a6fd8;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 30px;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding: 25px 30px;
}