/* 底部栏目区域 */
.bottom-category-section {
    padding: 60px 0 100px 0;
    background: #ffffff;
    border-bottom: 0px solid #C2C2C2;
    margin-bottom: 0px;
}

.bottom-category-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
    box-sizing: border-box;
}

/* 上边布局 */
.bottom-category-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    margin-bottom: 40px;
}

/* 左右列表通用样式 */
.bottom-category-left,
.bottom-category-right {
    flex: 1;
}

.bottom-category-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.bottom-category-item {
    margin: 0;
}

.bottom-category-link {
    text-decoration: none;
    color: #333;
    font-size: 1.1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    display: block;
    padding: 5px 0;
}

.bottom-category-link:hover {
    color: #E21111;
    transform: translateX(5px);
}

.bottom-category-item.active .bottom-category-link {
    color: #E21111;
    font-weight: 600;
}

/* 左边列表 - 靠左对齐 */
.bottom-category-left .bottom-category-list {
    align-items: flex-start;
    text-align: left;
}

.bottom-category-left .bottom-category-link:hover {
    transform: translateX(5px);
}

/* 右边列表 - 靠右对齐 */
.bottom-category-right .bottom-category-list {
    align-items: flex-end;
    text-align: right;
}

.bottom-category-right .bottom-category-link:hover {
    transform: translateX(-5px);
}

/* 中间Logo */
.bottom-category-center {
    flex-shrink: 0;
}

.bottom-logo {
    width: 290px;
    height: 290px;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.bottom-logo:hover {
    transform: scale(1.05);
}

/* 下边布局 */
.bottom-category-bottom {
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.bottom-phone {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 25px;
    background: #F4F1EB;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.bottom-phone:hover {
    background: #E21111;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(226, 17, 17, 0.3);
}

.phone-icon {
    font-size: 1.3rem;
    color: #E21111;
    transition: all 0.3s ease;
}

.bottom-phone:hover .phone-icon {
    color: #ffffff;
    transform: rotate(15deg);
}

.phone-number {
    font-size: 1.2rem;
    font-weight: 600;
    color: #333;
    transition: all 0.3s ease;
}

.bottom-phone:hover .phone-number {
    color: #ffffff;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .bottom-category-top {
        gap: 30px;
    }
    
    .bottom-logo {
        width: 250px;
        height: 250px;
    }
    
    .bottom-category-link {
        font-size: 1rem;
    }
}

@media (max-width: 992px) {
    .bottom-category-section {
        padding: 40px 0 80px 0;
        margin-bottom: 80px;
    }
    
    .bottom-category-top {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }
    
    .bottom-category-left,
    .bottom-category-right {
        width: 100%;
    }
    
    .bottom-category-left .bottom-category-list,
    .bottom-category-right .bottom-category-list {
        align-items: center;
        text-align: center;
    }
    
    .bottom-category-left .bottom-category-link:hover,
    .bottom-category-right .bottom-category-link:hover {
        transform: translateY(-2px);
    }
    
    .bottom-logo {
        width: 200px;
        height: 200px;
        order: -1; /* Logo移到最上面 */
    }
    
    .bottom-category-bottom {
        justify-content: center;
        margin-top: 20px;
    }
}

@media (max-width: 768px) {
    .bottom-category-container {
        padding: 0 15px;
    }
    
    .bottom-category-section {
        padding: 30px 0 60px 0;
        margin-bottom: 60px;
    }
    
    .bottom-category-top {
        gap: 25px;
        margin-bottom: 30px;
    }
    
    .bottom-logo {
        width: 180px;
        height: 180px;
    }
    
    .bottom-category-list {
        gap: 12px;
    }
    
    .bottom-category-link {
        font-size: 0.95rem;
        padding: 4px 0;
    }
    
    .bottom-phone {
        padding: 12px 20px;
    }
    
    .phone-icon {
        font-size: 1.1rem;
    }
    
    .phone-number {
        font-size: 1.1rem;
    }
}

@media (max-width: 576px) {
    .bottom-category-section {
        padding: 20px 0 40px 0;
        margin-bottom: 40px;
        border-bottom-width: 3px;
    }
    
    .bottom-category-top {
        gap: 20px;
        margin-bottom: 25px;
    }
    
    .bottom-logo {
        width: 150px;
        height: 150px;
    }
    
    .bottom-category-list {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 20px;
    }
    
    .bottom-category-item {
        margin: 0;
    }
    
    .bottom-category-link {
        font-size: 0.9rem;
        white-space: nowrap;
    }
    
    .bottom-phone {
        padding: 10px 18px;
    }
    
    .phone-icon {
        font-size: 1rem;
    }
    
    .phone-number {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .bottom-category-list {
        gap: 15px 25px;
    }
    
    .bottom-category-link {
        font-size: 0.85rem;
    }
    
    .bottom-logo {
        width: 120px;
        height: 120px;
    }
    
    .bottom-phone {
        padding: 8px 16px;
    }
    
    .phone-icon {
        font-size: 0.9rem;
    }
    
    .phone-number {
        font-size: 0.9rem;
    }
}

/* 大屏幕适配 */
@media (min-width: 1440px) {
    .bottom-category-container {
        padding: 0 40px;
    }
}

/* 加载动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.bottom-category-section {
    animation: fadeInUp 0.8s ease;
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    .bottom-category-section {
        background: #2c3e50;
        border-bottom-color: #4a6572;
    }
    
    .bottom-category-link {
        color: #ecf0f1;
    }
    
    .bottom-category-link:hover {
        color: #3498db;
    }
    
    .bottom-category-item.active .bottom-category-link {
        color: #3498db;
    }
    
    .bottom-phone {
        background: #34495e;
    }
    
    .bottom-phone:hover {
        background: #3498db;
    }
    
    .phone-icon {
        color: #3498db;
    }
    
    .bottom-phone:hover .phone-icon {
        color: #ffffff;
    }
    
    .phone-number {
        color: #ecf0f1;
    }
    
    .bottom-phone:hover .phone-number {
        color: #ffffff;
    }
}

/* 无障碍支持 */
.bottom-category-link:focus,
.bottom-phone:focus {
    outline: 3px solid #E21111;
    outline-offset: 2px;
    border-radius: 4px;
}