/* 二维码区域样式 */
.qrcode-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.qrcode-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    max-width: 800px;
    margin: 0 auto;
}

.qrcode-item {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.qrcode-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(45deg, #1aad19, #00d4aa);
}

.qrcode-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.qrcode-placeholder {
    position: relative;
    margin-bottom: 1.5rem;
}

.qrcode-placeholder > i {
    font-size: 3rem;
    color: #1aad19;
    margin-bottom: 1rem;
    display: block;
}

.qr-frame {
    width: 180px;
    height: 180px;
    border: 3px solid #e9ecef;
    border-radius: 15px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8f9fa;
    position: relative;
    overflow: hidden;
}

.qr-content {
    width: 160px;
    height: 160px;
    background: white;
    border-radius: 10px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-dots {
    width: 140px;
    height: 140px;
    background-image: 
        radial-gradient(circle at 25% 25%, #333 2px, transparent 2px),
        radial-gradient(circle at 75% 25%, #333 2px, transparent 2px),
        radial-gradient(circle at 25% 75%, #333 2px, transparent 2px),
        radial-gradient(circle at 75% 75%, #333 2px, transparent 2px),
        radial-gradient(circle at 50% 50%, #333 8px, transparent 8px);
    background-size: 20px 20px, 20px 20px, 20px 20px, 20px 20px, 40px 40px;
    background-position: 0 0, 0 0, 0 0, 0 0, center;
    opacity: 0.3;
}

.qr-frame::after {
    content: '二维码占位';
    position: absolute;
    font-size: 0.9rem;
    color: #999;
    text-align: center;
    z-index: 1;
}

.qrcode-item h4 {
    font-size: 1.4rem;
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.qrcode-item p {
    color: #7f8c8d;
    line-height: 1.6;
}

/* 联系我们区域调整 */
.contact-info-center {
    display: flex;
    justify-content: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-item-single {
    display: flex;
    align-items: center;
    background: white;
    padding: 2rem 3rem;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

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

.contact-item-single .contact-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(45deg, #3498db, #9b59b6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 2rem;
    color: white;
    font-size: 2rem;
}

.contact-item-single .contact-details h4 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.contact-item-single .contact-details p {
    color: #7f8c8d;
    font-size: 1.1rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .qrcode-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .qrcode-item {
        padding: 2rem;
    }
    
    .qr-frame {
        width: 150px;
        height: 150px;
    }
    
    .qr-content {
        width: 130px;
        height: 130px;
    }
    
    .qr-dots {
        width: 110px;
        height: 110px;
    }
    
    .contact-item-single {
        flex-direction: column;
        text-align: center;
        padding: 2rem;
    }
    
    .contact-item-single .contact-icon {
        margin-right: 0;
        margin-bottom: 1rem;
    }
}

@media (max-width: 480px) {
    .qrcode-item {
        padding: 1.5rem;
    }
    
    .qr-frame {
        width: 120px;
        height: 120px;
    }
    
    .qr-content {
        width: 100px;
        height: 100px;
    }
    
    .qr-dots {
        width: 80px;
        height: 80px;
    }
}