/* 分类导航 */
.equipment-categories {
    margin-bottom: 2rem;
}

.category-nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
    padding: 1rem 0;
}

.category-btn {
    padding: 0.8rem 1.5rem;
    background: #fff;
    border: 2px solid #e60012;
    border-radius: 4px;
    color: #e60012;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
}

.category-btn:hover,
.category-btn.active {
    background: #e60012;
    color: #fff;
}

/* 器材列表 */
.equipment-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    padding: 1rem 0;
}

.equipment-item {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.equipment-item:hover {
    transform: translateY(-5px);
}

.equipment-img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.3s;
}

.equipment-item:hover .equipment-img {
    transform: scale(1.05);
}

.equipment-info {
    padding: 1.5rem;
}

.equipment-info h2 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.equipment-desc {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.6;
}

/* 中国风元素 */
.equipment-item {
    border: 1px solid #e8e8e8;
    position: relative;
}

.equipment-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #e60012, #c70012);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s;
}

.equipment-item:hover::after {
    transform: scaleX(1);
}

/* 动画效果 */
.equipment-item {
    opacity: 0;
    animation: fadeIn 0.8s ease-out forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 按钮动画 */
.btn {
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        120deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: 0.5s;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .category-nav {
        flex-wrap: wrap;
    }

    .category-btn {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }

    .equipment-list {
        grid-template-columns: 1fr;
    }

    .equipment-info h2 {
        font-size: 1.2rem;
    }
}

/* 加载动画 */
@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

.loading {
    background: linear-gradient(
        90deg,
        #f0f0f0 25%,
        #e0e0e0 50%,
        #f0f0f0 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}