/* 联系我们页面样式 */
.contact-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 80px 20px;
    min-height: 80vh;
    display: flex;
    flex-direction: column;
}

/* 页面标题 */
.contact-header {
    text-align: center;
    margin-bottom: 60px;
    animation: fadeInDown 0.8s ease-out;
}

.contact-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.contact-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
}

.contact-header p {
    font-size: 1.1rem;
    color: #6c757d;
    max-width: 600px;
    margin: 0 auto;
}

/* 联系内容布局 */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

/* 联系信息卡片 */
.contact-info-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    height: fit-content;
}

.contact-info-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.contact-icon {
    font-size: 1.8rem;
    margin-right: 15px;
    margin-top: 3px;
    color: #fff;
}

.contact-details h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.contact-details p {
    margin: 0;
    opacity: 0.9;
    font-size: 0.95rem;
}

/* 社交媒体图标 */
.social-media {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.social-media h4 {
    margin-bottom: 15px;
    font-size: 1.1rem;
    font-weight: 600;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: white;
    font-size: 1.2rem;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: white;
    color: #667eea;
    transform: translateY(-3px) scale(1.1);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* 联系表单 */
.contact-form {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.contact-form:hover {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #2c3e50;
    font-size: 0.95rem;
}

.form-control {
    width: 100%;
    padding: 15px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    background-color: #fafafa;
}

.form-control:focus {
    outline: none;
    border-color: #667eea;
    background-color: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    transform: translateY(-2px);
}

/* 表单组聚焦效果 */
.form-group-focus {
    transform: translateY(-3px);
}

.form-group-focus label {
    color: #667eea;
    font-weight: 700;
}

.form-control::placeholder {
    color: #adb5bd;
}

textarea.form-control {
    resize: vertical;
    min-height: 150px;
}

/* 提交按钮 */
.submit-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
}

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

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.submit-btn:hover::before {
    left: 100%;
}

/* 成功/错误提示 */
.alert {
    margin-top: 20px;
    padding: 15px 20px;
    border-radius: 10px;
    font-weight: 600;
    display: none;
    animation: slideIn 0.3s ease-out;
}

.alert-success {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    color: #155724;
    border: none;
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    color: #721c24;
    border: none;
}

/* 动画效果 */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .contact-container {
        padding: 50px 20px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .contact-header h2 {
        font-size: 2rem;
    }
    
    .contact-info-card,
    .contact-form {
        padding: 30px 25px;
    }
}

@media (max-width: 480px) {
        .contact-header h2 {
            font-size: 1.7rem;
        }
        
        .contact-info-card,
        .contact-form {
            padding: 25px 20px;
        }
        
        .social-links {
            flex-wrap: wrap;
            justify-content: center;
        }
    }