.wechat-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
}

.wechat-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 900px;
    margin: 0 auto;
}

.wechat-text {
    color: #fff;
}

.wechat-icon {
    width: 64px;
    height: 64px;
    background: #07c160;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin-bottom: 20px;
}

.wechat-text h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}

.wechat-text > p {
    font-size: 16px;
    opacity: 0.85;
    margin-bottom: 24px;
}

.wechat-benefits {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 28px;
}

.wechat-benefits li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
}

.wechat-benefits i {
    color: #07c160;
    font-size: 16px;
}

.wechat-phone {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    padding: 14px 20px;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.2);
}

.wechat-phone i {
    color: var(--accent);
}

.wechat-qrcode {
    display: flex;
    justify-content: center;
}

.qrcode-box {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.qrcode-box img {
    width: 220px;
    height: 220px;
    border-radius: var(--radius);
    margin-bottom: 12px;
}

.qrcode-tip {
    font-size: 14px;
    color: var(--text-light);
    font-weight: 500;
}

/* ========================================
   联系我们页面
   ======================================== */
.contact-info-section {
    padding: 60px 0;
    background: var(--bg-light);
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.contact-info-item {
    background: var(--bg);
    border-radius: var(--radius-lg);
    padding: 40px 24px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.contact-info-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.contact-info-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    color: #fff;
    font-size: 24px;
}

.contact-info-item h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 12px;
}

.contact-info-item p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 4px;
}

/* 联系表单 */
.contact-form-section {
    padding: 80px 0;
    background: var(--bg);
}

.contact-form-wrapper {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 48px;
    border: 1px solid var(--border);
}

.form-section-header {
    text-align: center;
    margin-bottom: 36px;
}

.form-section-header h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.form-section-header p {
    color: var(--text-light);
}

.contact-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 0;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 8px;
}

.form-group label span {
    color: #e53e3e;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
    background: var(--bg);
    color: var(--text);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(44, 82, 130, 0.1);
}

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

.btn-submit {
    width: 100%;
    padding: 14px;
    font-size: 16px;
    margin-top: 10px;
}

/* ========================================
   响应式
   ======================================== */
@media (max-width: 768px) {
    .page-banner {
        height: 220px;
    }
    
    .page-banner-content h2 {
        font-size: 28px;
    }
    
    .intro-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .intro-image {
        order: -1;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item,
    .timeline-item:nth-child(even) {
        padding-left: 60px;
        padding-right: 0;
        justify-content: flex-start;
    }
    
    .timeline-year {
        left: 20px;
        transform: translateX(-50%);
    }
    
    .timeline-content {
        margin: 0;
        max-width: 100%;
    }
    
    .qual-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .service-detail-item,
    .service-detail-item.reverse {
        grid-template-columns: 1fr;
        direction: ltr;
        gap: 30px;
    }
    
    .service-detail-item.reverse > * {
        direction: ltr;
    }
    
    .param-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .equip-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form-wrapper {
        padding: 24px;
    }
    
    .contact-form .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .materials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .service-nav {
        position: relative;
        top: 0;
    }
    
    .service-nav-list {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 8px;
        -webkit-overflow-scrolling: touch;
    }
    
    .service-nav-item {
        flex-shrink: 0;
    }
    
    .wechat-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .wechat-icon {
        margin: 0 auto 20px;
    }
    
    .wechat-benefits {
        align-items: center;
    }
    
    .wechat-phone {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .qual-grid,
    .param-grid,
    .materials-grid {
        grid-template-columns: 1fr;
    }
    
    .qrcode-box img {
        width: 180px;
        height: 180px;
    }
}