/* 分类筛选 */
.category-filter {
    background: #fff;
    padding: 24px 0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 64px;
    z-index: 999;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    border: 2px solid #e5e7eb;
    background: #fff;
    color: #374151;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s;
}

.filter-btn:hover {
    border-color: #22c55e;
    color: #22c55e;
}

.filter-btn.active {
    background: #22c55e;
    color: #fff;
    border-color: #22c55e;
}

.filter-btn[data-category="daily"].active {
    background: #3b82f6;
    border-color: #3b82f6;
}

.filter-btn[data-category="food"].active {
    background: #f97316;
    border-color: #f97316;
}

/* 产品列表 */
.products-section {
    padding: 48px 0;
}

.products-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.product-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
}

.product-card:hover {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

.product-image {
    height: 192px;
    background: linear-gradient(135deg, #f3f4f6, #e5e7eb);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
}

.product-info {
    padding: 24px;
}

.product-info h3 {
    font-size: 20px;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 8px;
}

.product-info p {
    color: #6b7280;
    margin-bottom: 16px;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.price {
    font-size: 24px;
    font-weight: bold;
    color: #22c55e;
}

/* 服务承诺 */
.service-promise {
    padding: 64px 0;
    background: #fff;
}

.promise-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.promise-item {
    text-align: center;
}

.promise-icon {
    width: 64px;
    height: 64px;
    background: #dcfce7;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    color: #22c55e;
}

.promise-item h3 {
    font-size: 18px;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 8px;
}

.promise-item p {
    color: #6b7280;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .products-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .promise-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .products-list {
        grid-template-columns: 1fr;
    }

    .promise-grid {
        grid-template-columns: 1fr;
    }

    .filter-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-btn {
        width: 100%;
    }
}