/* Contact Page Specific Styles */

/* 联系我们页面样式 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-bottom: 48px;
}

.contact-card {
    background: var(--white);
    border-radius: 16px;
    padding: 32px 28px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 400px;
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.contact-card .contact-icon {
    width: 80px;
    height: 80px;
    background: var(--light-purple);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.contact-card .contact-icon i {
    font-size: 2.5rem;
    color: var(--primary-color);
}

.contact-card h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 16px;
    font-weight: 600;
}

.contact-card .contact-info {
    margin-bottom: 24px;
}

.contact-card .contact-info p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 8px;
}

.contact-card .contact-info p strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* 课题组负责人卡片样式 */
.leader-profile {
    text-align: center;
}

.leader-name {
    color: var(--primary-color);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 8px;
    margin-top: 0;
}

.leader-title {
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 12px;
    font-size: 1rem;
}

.leader-research {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 0;
}

/* 实验室地址卡片样式 */
.address-details {
    text-align: center;
}

.address-main h4 {
    color: var(--primary-color);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    margin-top: 0;
}

.address-main p {
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 0;
}

/* 学术合作卡片样式 */
.cooperation-details {
    text-align: center;
}

.cooperation-desc {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0;
    font-size: 0.95rem;
}

/* 学生咨询卡片样式 */
.students-details {
    text-align: center;
}

.students-desc {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0;
    font-size: 0.95rem;
}

.contact-card .contact-methods {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.contact-card .contact-method {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding: 8px 0;
}

.contact-card .contact-method i {
    color: var(--primary-color);
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.contact-card .contact-method span {
    line-height: 1.4;
}

/* 相关链接样式 */
.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-bottom: 48px;
}

.links-category {
    background: var(--white);
    border-radius: 16px;
    padding: 32px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.links-category:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.links-category h3 {
    color: var(--primary-color);
    font-size: 1.25rem;
    margin-bottom: 20px;
    font-weight: 600;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-color);
}

.links-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.links-list li {
    margin-bottom: 12px;
}

.links-list a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
    display: block;
    padding: 8px 0;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.links-list a:hover {
    color: var(--primary-color);
    background: var(--gray-50);
    padding-left: 12px;
}

/* 联系表单样式 */
.contact-form-container {
    max-width: 800px;
    margin: 0 auto;
}

.contact-form {
    background: var(--white);
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9375rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--white);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

.submit-btn {
    background: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
}

.submit-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .links-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .contact-form {
        padding: 24px;
    }
    
    .contact-card {
        padding: 24px;
    }
    
    .links-category {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    .contact-form {
        padding: 20px;
    }
    
    .contact-card {
        padding: 20px;
    }
    
    .links-category {
        padding: 20px;
    }
    
    .contact-card .contact-icon {
        width: 60px;
        height: 60px;
    }
    
    .contact-card .contact-icon i {
        font-size: 2rem;
    }
}

/* 表单验证样式 */
.form-group input:invalid,
.form-group select:invalid,
.form-group textarea:invalid {
    border-color: var(--error-color, #ef4444);
}

.form-group input:valid,
.form-group select:valid,
.form-group textarea:valid {
    border-color: var(--success-color, #10b981);
}

/* 加载状态样式 */
.submit-btn.loading {
    background: var(--gray-400);
    cursor: not-allowed;
    position: relative;
}

.submit-btn.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid var(--white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* 成功消息样式 */
.success-message {
    background: var(--success-color, #10b981);
    color: var(--white);
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 24px;
    text-align: center;
    font-weight: 500;
}

/* 错误消息样式 */
.error-message {
    background: var(--error-color, #ef4444);
    color: var(--white);
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 24px;
    text-align: center;
    font-weight: 500;
}