/**
 * 文章横向列表样式
 * 对应 page-news.php 页面模板
 *
 * @package AI_Tools_Directory
 */

/* ===================================
   容器 & 基础布局
   =================================== */

/* 覆盖 layout.css 的双栏 Grid —— 文章列表页是全宽单栏 */
.news-grid-page.site-content {
    display: block;
    max-width: none;
    margin: 0;
    padding: 0;
    background: #f8fafc;
    min-height: 70vh;
    padding-bottom: 60px;
}

.ngp-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 面包屑下面的内容区顶部间距 */
.news-grid-page > .ngp-container:first-of-type {
    padding-top: 32px;
}

/* ===================================
   面包屑导航 — 全宽白底栏
   =================================== */
.news-breadcrumb {
    background: #fff;
    border-bottom: 1px solid #e2e8f0;
    padding: 10px 0;
}

.news-breadcrumb-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.news-breadcrumb a {
    color: #64748b;
    text-decoration: none;
    transition: color 0.2s ease;
}

.news-breadcrumb a:hover {
    color: #6366f1;
}

/* ===================================
   页头
   =================================== */
.ngp-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.ngp-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-color);
    margin: 0 0 var(--spacing-xs);
    line-height: var(--leading-tight);
}

.ngp-subtitle {
    font-size: var(--text-sm);
    color: var(--text-lighter);
    margin: 0;
}

/* ===================================
   搜索框
   =================================== */
.ngp-search-form {
    flex-shrink: 0;
}

.ngp-search-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.ngp-search-icon {
    position: absolute;
    left: 12px;
    color: var(--text-lighter);
    pointer-events: none;
    flex-shrink: 0;
}

.ngp-search-input {
    padding: 9px 36px 9px 36px;
    font-size: var(--text-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    background: var(--bg-color);
    color: var(--text-color);
    width: 280px;
    outline: none;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
    line-height: var(--leading-normal);
}

.ngp-search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.ngp-search-input::placeholder {
    color: var(--text-lightest);
}

.ngp-search-clear {
    position: absolute;
    right: 10px;
    color: var(--text-lighter);
    display: flex;
    align-items: center;
    padding: 2px;
    border-radius: 50%;
    transition: color var(--transition-fast), background var(--transition-fast);
}

.ngp-search-clear:hover {
    color: var(--text-color);
    background: var(--bg-lighter);
}

/* ===================================
   工具栏：分类 Tab + 排序
   =================================== */
.ngp-toolbar {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.ngp-cat-tabs {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    min-width: 0;
    overflow-x: auto;
    overflow-y: visible;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
    padding-bottom: 4px; /* 给滚动条留空间 */
}

.ngp-cat-tabs::-webkit-scrollbar {
    height: 4px;
}

.ngp-cat-tabs::-webkit-scrollbar-track {
    background: transparent;
}

.ngp-cat-tabs::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

.ngp-cat-tabs::-webkit-scrollbar-thumb:hover {
    background: var(--text-lightest);
}

.ngp-cat-tab {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 5px 12px;
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-light);
    background: var(--bg-color);
    text-decoration: none;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.ngp-cat-tab:hover {
    border-color: var(--primary-lighter);
    color: var(--primary-color);
    background: var(--primary-lightest);
}

.ngp-cat-tab.is-active {
    border-color: var(--text-color);
    background: var(--text-color);
    color: var(--bg-color);
}

.ngp-cat-count {
    font-size: 11px;
    opacity: 0.65;
}

.ngp-cat-tab.is-active .ngp-cat-count {
    opacity: 0.75;
}

.ngp-sort-wrap {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex-shrink: 0;
}

.ngp-sort-label {
    font-size: var(--text-xs);
    color: var(--text-lighter);
    white-space: nowrap;
}

.ngp-sort-select {
    font-size: var(--text-xs);
    padding: 5px 28px 5px 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-color) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%239ca3af'/%3E%3C/svg%3E") no-repeat right 8px center;
    color: var(--text-color);
    outline: none;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
}

/* ===================================
   卡片网格
   =================================== */
.ngp-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
    margin-bottom: 60px;
}

/* ===================================
   单个卡片
   =================================== */
.ngp-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    cursor: pointer;
    transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.ngp-card:hover {
    box-shadow: 0 8px 25px rgba(0,0,0,0.10), 0 2px 6px rgba(0,0,0,0.06);
    transform: translateY(-3px);
}

/* 卡片链接 */
.ngp-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.ngp-card-link:focus-visible {
    outline: 2px solid #6366f1;
    outline-offset: 4px;
    border-radius: 4px;
}

/* 封面图 */
.ngp-card-cover {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #f1f5f9;
    border-radius: 12px 12px 0 0;
}

.ngp-card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.ngp-card:hover .ngp-card-img {
    transform: scale(1.04);
}

.ngp-card-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

/* 内容区 */
.ngp-card-body {
    padding: 12px 14px 16px;
}

/* Meta 行 */
.ngp-card-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 8px;
}

.ngp-card-tag {
    font-size: 12px;
    font-weight: 500;
    line-height: 1;
    background: transparent;
    padding: 0;
}

.ngp-card-date {
    font-size: 12px;
    color: #94a3b8;
    line-height: 1;
}

.ngp-card-comments {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    font-size: 12px;
    color: #94a3b8;
    line-height: 1;
}

/* 标题 */
.ngp-card-title {
    font-size: 15px;
    font-weight: 600;
    color: #0f172a;
    line-height: 1.5;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.ngp-card:hover .ngp-card-title {
    color: #6366f1;
}

/* ===================================
   分页
   =================================== */
.ngp-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    flex-wrap: wrap;
    margin-top: var(--spacing-xl);
}

.ngp-pagination a,
.ngp-pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    color: var(--text-light);
    background: var(--bg-color);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.ngp-pagination a:hover {
    border-color: var(--primary-lighter);
    color: var(--primary-color);
    background: var(--primary-lightest);
}

.ngp-pagination .current {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: #fff;
    font-weight: var(--font-semibold);
}

.ngp-pagination .dots {
    border: none;
    background: none;
    color: var(--text-lighter);
}

/* ===================================
   空状态
   =================================== */
.ngp-empty {
    text-align: center;
    padding: 80px var(--spacing-xl);
    color: var(--text-lighter);
}

.ngp-empty svg {
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.ngp-empty h3 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-light);
    margin: 0 0 var(--spacing-sm);
}

.ngp-empty p {
    font-size: var(--text-sm);
    margin: 0 0 var(--spacing-lg);
}

.ngp-empty-btn {
    display: inline-block;
    padding: 9px 20px;
    background: var(--primary-color);
    color: #fff;
    border-radius: var(--radius-xl);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    text-decoration: none;
    transition: background var(--transition-fast);
}

.ngp-empty-btn:hover {
    background: var(--primary-hover);
}

/* 未勾选分类时提示 */
.ngp-empty-cats {
    text-align: center;
    padding: 100px var(--spacing-xl);
    color: var(--text-lighter);
}

.ngp-empty-cats-icon {
    margin-bottom: 20px;
    opacity: 0.4;
}

.ngp-empty-cats h2 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--text-light);
    margin: 0 0 8px;
}

.ngp-empty-cats p {
    font-size: var(--text-sm);
    color: var(--text-lighter);
    margin: 0;
    line-height: var(--leading-relaxed);
}

.ngp-empty-cats strong {
    color: var(--text-color);
}

/* ===================================
   响应式
   =================================== */

/* 1024px 及以下：3 列 */
@media (max-width: 1024px) {
    .ngp-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
    .ngp-search-input {
        width: 220px;
    }
}

/* 768px 及以下：2 列 */
@media (max-width: 768px) {
    .ngp-container {
        padding: 0 var(--spacing-md);
    }
    .ngp-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 16px;
    }
    .ngp-header {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    .ngp-search-input {
        width: 100%;
    }
    .ngp-search-form {
        width: 100%;
    }
    .ngp-toolbar {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    .ngp-cat-tabs {
        width: 100%;
    }
    .ngp-title {
        font-size: var(--text-xl);
    }
}

/* 480px 及以下：单列 */
@media (max-width: 480px) {
    .ngp-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }
}