/* css/category-page.css */

/* 强制应用目录页面布局样式 */
.site-content {
    padding-top: 30px !important;
    background-color: #f8f9fa !important;
}

/* 目录页面容器 */
.category-page-container {
    display: flex !important; /* 强制使用flex布局 */
    flex-direction: row !important; /* 强制水平方向 */
    gap: 30px !important;
    margin-top: 0 !important;
    align-items: flex-start !important;
    width: 100% !important;
    justify-content: flex-start !important;
    padding: 0 30px !important;
    max-width: 1500px !important;
    margin-left: auto !important;
    margin-right: auto !important;
    box-sizing: border-box !important;
    overflow: visible !important;
    float: none !important;
    clear: both !important;
}

/* 左侧分类导航 */
.category-sidebar {
    width: 240px !important; /* 固定宽度 */
    min-width: 240px !important; /* 确保最小宽度 */
    flex: 0 0 240px !important; /* 不缩放不扩展 */
    background: #f8f9fa !important;
    border-radius: 8px !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08) !important;
    position: sticky !important;
    top: 100px !important;
    padding: 15px 0 !important;
    margin-left: 0 !important;
    z-index: 10 !important;
    float: left !important;
    display: block !important;
}

/* 右侧内容区域 */
.category-content {
    flex: 1 1 auto !important; /* 自动填充剩余空间 */
    min-width: 0 !important; /* 允许内容区域缩小 */
    width: calc(100% - 270px) !important; /* 减去左侧导航宽度和间距 */
    float: right !important;
    display: block !important;
}

.category-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.category-menu-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    font-size: 16px;
    color: #333;
    text-decoration: none;
    transition: all 0.2s ease;
    border-radius: 8px;
    margin: 4px 8px;
    font-weight: 600;
    opacity: 0.9;
}

.category-menu-item:hover {
    color: var(--primary);
    text-decoration: none;
    background-color: #f5f7fa;
    opacity: 1;
}

.category-menu li.active .category-menu-item {
    background-color: var(--primary-light, #e6f0ff);
    color: var(--primary);
    font-weight: 600;
    opacity: 1;
}

.category-menu-item:hover:not(.active .category-menu-item) {
    background-color: #f5f7fa;
}

.category-sidebar .category-menu li.active .category-menu-item {
    background-color: var(--primary-light, #e6f0ff); /* 激活项背景色，使用变量或备用色 */
    color: var(--primary); /* 激活项文字颜色 */
    font-weight: 600; /* 激活项文字加粗 */
    border-left-color: var(--primary); /* 激活项左侧指示条颜色 */
}

.category-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 25px;
    color: var(--dark);
}

/* 顶部卡片区域 */
.featured-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

.featured-card {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.featured-card-inner {
    padding: 20px;
    background: linear-gradient(135deg, #4285f4, #34a853);
    color: white;
    height: 100%;
}

.featured-card:nth-child(2) .featured-card-inner {
    background: linear-gradient(135deg, #4285f4, #9c27b0);
}

.featured-card-content h3 {
    font-size: 18px;
    margin-bottom: 10px;
    font-weight: 600;
}

.featured-card-content p {
    font-size: 14px;
    opacity: 0.9;
    cursor: pointer;
}

/* 工具卡片网格 - 更新网格布局，使其与首页保持一致 */
.category-tools-grid,
.front-page .tools-grid,
.tools-grid.nh-tools-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 30px;
    width: 100%; /* 确保网格占满容器 */
}

/* 媒体查询，确保与responsive.css中的设置一致 */
@media (min-width: 1200px) {
    .category-tools-grid,
    .front-page .tools-grid,
    .tools-grid.nh-tools-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1024px) and (max-width: 1199px) {
    .category-tools-grid,
    .front-page .tools-grid,
    .tools-grid.nh-tools-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 769px) and (max-width: 1023px) {
    .category-tools-grid,
    .front-page .tools-grid,
    .tools-grid.nh-tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 平板设备 - 竖屏 (481px - 768px) - 2列 */
@media (max-width: 768px) {
    .category-page-container {
        flex-direction: column;
        align-items: stretch; /* 确保子元素拉伸填满容器 */
    }
    
    .category-sidebar {
        width: 100%;
        position: relative;
        top: 0;
        margin-bottom: 20px;
    }
    
    .category-tools-grid,
    .front-page .tools-grid,
    .tools-grid.nh-tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .featured-cards {
        grid-template-columns: 1fr;
    }
}

/* 移动设备 (最大480px) - 1列 */
@media (max-width: 480px) {
    .category-tools-grid,
    .front-page .tools-grid,
    .tools-grid.nh-tools-grid {
        grid-template-columns: 1fr;
    }
}

/* 无限滚动状态样式 */
#infinite-scroll-status {
    text-align: center;
    padding: 20px 0;
}

/* 加载动画 */
.loader-ellips {
    font-size: 20px;
    position: relative;
    width: 4em;
    height: 1em;
    margin: 10px auto;
}

.loader-ellips__dot {
    display: block;
    width: 1em;
    height: 1em;
    border-radius: 0.5em;
    background: var(--primary);
    position: absolute;
    animation-duration: 0.5s;
    animation-timing-function: ease;
    animation-iteration-count: infinite;
}

.loader-ellips__dot:nth-child(1),
.loader-ellips__dot:nth-child(2) {
    left: 0;
}
.loader-ellips__dot:nth-child(3) { left: 1.5em; }
.loader-ellips__dot:nth-child(4) { left: 3em; }

@keyframes reveal {
    from { transform: scale(0.001); }
    to { transform: scale(1); }
}

@keyframes slide {
    to { transform: translateX(1.5em) }
}

.loader-ellips__dot:nth-child(1) {
    animation-name: reveal;
}

.loader-ellips__dot:nth-child(2),
.loader-ellips__dot:nth-child(3) {
    animation-name: slide;
}

.loader-ellips__dot:nth-child(4) {
    animation-name: reveal;
    animation-direction: reverse;
}