/* 产品百科页面样式 */

#product-encyclopedia-page {
    background: #f8f9fa;
    min-height: 100vh;
    padding-bottom: 20px;
}

/* 页面头部 */
.page-header {
    background: white;
    padding: 12px 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    align-items: center;
    padding: 0 16px;
    max-width: 414px;
    margin: 0 auto;
}

.back-btn {
    background: none;
    border: none;
    font-size: 18px;
    color: #333;
    padding: 8px;
    margin-right: 12px;
    cursor: pointer;
    border-radius: 50%;
    transition: background-color 0.2s;
}

.back-btn:hover {
    background-color: #f5f5f5;
}

.page-title {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin: 0;
    flex: 1;
    text-align: center;
    margin-right: 32px;
}

/* 搜索区域 */
.search-section {
    padding: 16px;
    background: white;
    margin-bottom: 8px;
}

.search-box {
    position: relative;
    background: #f5f5f5;
    border-radius: 20px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
}

.search-box i {
    color: #999;
    margin-right: 8px;
    font-size: 14px;
}

.search-input {
    border: none;
    background: none;
    outline: none;
    flex: 1;
    font-size: 14px;
    color: #333;
}

.search-input::placeholder {
    color: #999;
}

/* 分类导航 */
.category-nav {
    display: flex;
    justify-content: space-around;
    background: white;
    padding: 16px 8px;
    margin-bottom: 8px;
}

.category-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    transition: all 0.2s;
    padding: 8px;
    border-radius: 8px;
}

.category-item:hover {
    background-color: #f5f5f5;
}

.category-item.active .category-icon {
    background: linear-gradient(135deg, #4ECDC4, #44A08D);
    color: white;
}

.category-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 4px;
    transition: all 0.2s;
}

.category-icon i {
    font-size: 16px;
    color: #666;
}

.category-item.active .category-icon i {
    color: white;
}

.category-item span {
    font-size: 12px;
    color: #666;
    text-align: center;
}

.category-item.active span {
    color: #4ECDC4;
    font-weight: 500;
}

/* 产品区域 */
.section {
    background: white;
    margin-bottom: 8px;
    padding: 16px;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin: 0;
}

.section-header i {
    color: #999;
    font-size: 14px;
}

/* 产品列表 */
.product-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.product-item {
    display: flex;
    align-items: center;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 12px;
    transition: all 0.2s;
    cursor: pointer;
}

.product-item:hover {
    background: #f0f0f0;
    transform: translateY(-1px);
}

.product-image {
    width: 60px;
    height: 60px;
    border-radius: 8px;
    overflow: hidden;
    margin-right: 12px;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-info {
    flex: 1;
}

.product-info h3 {
    font-size: 14px;
    font-weight: 500;
    color: #333;
    margin: 0 0 4px 0;
    line-height: 1.4;
}

.product-brand {
    font-size: 12px;
    color: #999;
    margin: 0;
}



/* 响应式设计 */
@media (max-width: 375px) {
    .category-nav {
        padding: 12px 4px;
    }
    
    .category-item {
        padding: 4px;
    }
    
    .category-icon {
        width: 36px;
        height: 36px;
    }
    
    .category-icon i {
        font-size: 14px;
    }
    
    .category-item span {
        font-size: 11px;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section {
    animation: fadeInUp 0.3s ease-out;
}

.product-item {
    animation: fadeInUp 0.3s ease-out;
}

.product-item:nth-child(2) {
    animation-delay: 0.1s;
}

.product-item:nth-child(3) {
    animation-delay: 0.2s;
}

/* 加载状态 */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px;
    color: #999;
}

.loading::after {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #4ECDC4;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 8px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}