/* ==========================================================================
   分类页 v2 —— 克制居中风（参考 logamee.com/courses 的"少即是多"思路）
   依赖 layouts 中 home.css 提供的 CSS 变量（--c-*、--shadow-* 等）
   --cat-color 由 Blade 模板 inline 设置为当前分类主题色
   ========================================================================== */

.cs-wrap {
    padding: 18px 0 64px;
    background:
        linear-gradient(180deg,
            color-mix(in srgb, var(--cat-color) 4%, transparent) 0%,
            transparent 220px);
}

/* ---------- 面包屑 ---------- */
.cs-breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: var(--c-text-muted);
    margin-bottom: 18px;
}
.cs-breadcrumb a {
    color: var(--c-text-sub);
    text-decoration: none;
    transition: color .16s;
}
.cs-breadcrumb a:hover { color: var(--cat-color); }
.cs-breadcrumb .sep { opacity: .55; }
.cs-breadcrumb .current { color: var(--c-text); font-weight: 600; }

/* ---------- 页面头：白底、克制居中 ---------- */
.cs-header {
    text-align: center;
    padding: 44px 28px 32px;
    margin-bottom: 18px;
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: 24px;
    box-shadow: var(--shadow-sm, 0 1px 2px rgba(16, 24, 40, .04));
}
.cs-header-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    font-size: 28px;
    line-height: 1;
    border-radius: 16px;
    background: color-mix(in srgb, var(--cat-color) 12%, transparent);
    color: var(--cat-color);
    margin-bottom: 18px;
}
.cs-header-title {
    margin: 0 0 8px;
    font-size: 32px;
    font-weight: 800;
    letter-spacing: .5px;
    color: var(--c-text);
}
.cs-header-sub {
    max-width: 620px;
    margin: 0 auto 18px;
    font-size: 14.5px;
    line-height: 1.85;
    color: var(--c-text-sub);
}
.cs-header-stats {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px 10px;
    font-size: 13px;
    color: var(--c-text-muted);
    margin-bottom: 24px;
}
.cs-header-stats b {
    color: var(--c-text);
    font-weight: 700;
    margin-right: 2px;
    font-variant-numeric: tabular-nums;
}
.cs-header-fresh {
    color: var(--cat-color);
    font-weight: 600;
}
.cs-dot { color: var(--c-border); user-select: none; }

/* 搜索框（pill 形） */
.cs-search {
    display: flex;
    align-items: center;
    width: 100%;
    max-width: 560px;
    height: 48px;
    margin: 0 auto 18px;
    padding: 0 6px 0 22px;
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: 999px;
    transition: border-color .16s ease, box-shadow .16s ease;
}
.cs-search:focus-within {
    border-color: color-mix(in srgb, var(--cat-color) 55%, var(--c-border));
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--cat-color) 12%, transparent);
}
.cs-search-input {
    flex: 1;
    min-width: 0;
    height: 100%;
    border: 0;
    background: transparent;
    font: inherit;
    color: var(--c-text);
    outline: none;
}
.cs-search-input::placeholder { color: var(--c-text-muted); }
.cs-search-btn {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border: 0;
    border-radius: 999px;
    color: #fff;
    background: var(--cat-color);
    cursor: pointer;
    transition: transform .16s ease, box-shadow .16s ease;
}
.cs-search-btn:hover {
    transform: scale(1.04);
    box-shadow: 0 6px 14px -6px color-mix(in srgb, var(--cat-color) 60%, transparent);
}

/* 子分类标签 */
.cs-header-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    max-width: 760px;
    margin: 0 auto;
}
.cs-header-tag {
    display: inline-flex;
    align-items: center;
    height: 30px;
    padding: 0 14px;
    border-radius: 999px;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--c-text-sub);
    background: var(--c-bg-soft);
    border: 1px solid transparent;
    text-decoration: none;
    transition: all .16s ease;
}
.cs-header-tag:hover {
    color: var(--cat-color);
    background: color-mix(in srgb, var(--cat-color) 10%, transparent);
    transform: translateY(-1px);
}
.cs-header-tag.active {
    color: var(--cat-color);
    background: color-mix(in srgb, var(--cat-color) 12%, transparent);
    border-color: color-mix(in srgb, var(--cat-color) 35%, transparent);
}

/* ---------- 筛选条（粘性） ---------- */
.cs-filterbar {
    position: sticky;
    top: 70px;
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 14px;
    padding: 12px 0;
    margin-bottom: 22px;
    background: color-mix(in srgb, var(--c-bg) 88%, transparent);
    backdrop-filter: saturate(180%) blur(8px);
    -webkit-backdrop-filter: saturate(180%) blur(8px);
    border-bottom: 1px solid var(--c-border);
}
.cs-filter-group {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    min-width: 0;
}
.cs-filter-label {
    font-size: 13px;
    color: var(--c-text-muted);
    margin-right: 4px;
    flex: 0 0 auto;
}
.cs-chip {
    display: inline-flex;
    align-items: center;
    height: 30px;
    padding: 0 14px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 500;
    color: var(--c-text-sub);
    background: transparent;
    border: 1px solid var(--c-border);
    text-decoration: none;
    transition: all .16s ease;
    white-space: nowrap;
}
.cs-chip:hover {
    color: var(--cat-color);
    border-color: color-mix(in srgb, var(--cat-color) 40%, var(--c-border));
    background: color-mix(in srgb, var(--cat-color) 6%, transparent);
}
.cs-chip.active {
    color: #fff;
    background: var(--cat-color);
    border-color: var(--cat-color);
    box-shadow: 0 4px 12px -4px color-mix(in srgb, var(--cat-color) 50%, transparent);
}

/* ---------- 区块标题 ---------- */
.cs-sec-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    margin: 8px 0 16px;
}
.cs-sec-head h2 {
    margin: 0;
    font-size: 18px;
    font-weight: 800;
    color: var(--c-text);
}
.cs-sec-count {
    font-size: 12.5px;
    color: var(--c-text-muted);
}

/* ---------- 主内容 + 侧栏 ---------- */
.cs-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 24px;
    align-items: start;
}
.cs-aside {
    display: flex;
    flex-direction: column;
    gap: 14px;
    position: sticky;
    top: 142px;
}

/* ---------- 内容卡片 ---------- */
.cs-news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 18px;
}
.cs-news-card {
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: 16px;
    overflow: hidden;
    transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.cs-news-card:hover {
    transform: translateY(-3px);
    border-color: color-mix(in srgb, var(--cat-color) 35%, var(--c-border));
    box-shadow: 0 16px 30px -14px color-mix(in srgb, var(--cat-color) 30%, transparent);
}
.cs-news-link { display: flex; flex-direction: column; height: 100%; text-decoration: none; }

.cs-news-thumb {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--c-bg-soft);
}
.cs-news-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .45s ease;
}
.cs-news-card:hover .cs-news-thumb img { transform: scale(1.06); }

.cs-news-tag {
    position: absolute;
    left: 12px;
    bottom: 12px;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    height: 24px;
    padding: 0 10px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    color: #fff;
    background: var(--tag-color, var(--cat-color));
    box-shadow: 0 4px 10px -4px rgba(0, 0, 0, .25);
}
.cs-news-flag {
    position: absolute;
    right: 12px;
    top: 12px;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    height: 24px;
    padding: 0 10px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 700;
    color: var(--cat-color);
    background: color-mix(in srgb, var(--cat-color) 12%, #ffffff);
    border: 1px solid color-mix(in srgb, var(--cat-color) 30%, transparent);
    backdrop-filter: blur(4px);
}

.cs-news-body {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 16px 18px 18px;
    flex: 1;
}
.cs-news-title {
    margin: 0;
    font-size: 15.5px;
    font-weight: 700;
    line-height: 1.5;
    color: var(--c-text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color .16s;
}
.cs-news-card:hover .cs-news-title { color: var(--cat-color); }
.cs-news-desc {
    margin: 0;
    font-size: 13px;
    line-height: 1.7;
    color: var(--c-text-sub);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}
.cs-news-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0 8px;
    font-size: 12.5px;
    color: var(--c-text-muted);
    margin-top: 8px;
    padding-top: 12px;
    border-top: 1px solid var(--c-border);
}
.cs-news-author { color: var(--c-text-sub); font-weight: 500; }
.cs-news-dot { color: var(--c-border); user-select: none; }

/* ---------- 更多按钮 ---------- */
.cs-more { text-align: center; margin-top: 30px; }
.cs-more-btn {
    display: inline-flex;
    align-items: center;
    height: 46px;
    padding: 0 28px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 700;
    color: var(--c-text);
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    text-decoration: none;
    transition: all .2s ease;
}
.cs-more-btn:hover {
    color: #fff;
    background: var(--cat-color);
    border-color: var(--cat-color);
    transform: translateY(-2px);
    box-shadow: 0 10px 22px -8px color-mix(in srgb, var(--cat-color) 50%, transparent);
}

/* ---------- 侧栏卡片 ---------- */
.cs-side-card {
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: 16px;
    padding: 20px;
}
.cs-side-title {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 0 0 14px;
    font-size: 14.5px;
    font-weight: 800;
    color: var(--c-text);
}

/* 热门排行 */
.cs-hot-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.cs-hot-list li {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding: 8px 6px;
    border-radius: 8px;
    transition: background .14s;
}
.cs-hot-list li:hover { background: var(--c-bg-soft); }
.cs-hot-rank {
    flex: 0 0 auto;
    width: 20px;
    height: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    font-size: 11.5px;
    font-weight: 800;
    color: var(--c-text-muted);
    background: var(--c-bg-soft);
    font-variant-numeric: tabular-nums;
}
.cs-hot-list .rank-1 { color: #fff; background: linear-gradient(135deg, #f59e0b, #ef4444); }
.cs-hot-list .rank-2 { color: #fff; background: linear-gradient(135deg, #94a3b8, #64748b); }
.cs-hot-list .rank-3 { color: #fff; background: linear-gradient(135deg, #d97706, #b45309); }
.cs-hot-list a {
    font-size: 13px;
    line-height: 1.55;
    color: var(--c-text-sub);
    text-decoration: none;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color .16s;
}
.cs-hot-list a:hover { color: var(--cat-color); }

/* 随机推荐 */
.cs-random-desc {
    margin: 0 0 14px;
    font-size: 13px;
    line-height: 1.8;
    color: var(--c-text-sub);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.cs-random-btn {
    display: inline-flex;
    align-items: center;
    height: 36px;
    padding: 0 16px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
    color: #fff;
    background: var(--cat-color);
    text-decoration: none;
    transition: transform .18s ease, box-shadow .18s ease;
}
.cs-random-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 18px -6px color-mix(in srgb, var(--cat-color) 55%, transparent);
}

/* 分类信息 */
.cs-info-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.cs-info-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    font-size: 13px;
}
.cs-info-list li span { color: var(--c-text-muted); }
.cs-info-list li b { color: var(--c-text); font-weight: 600; text-align: right; font-variant-numeric: tabular-nums; }

/* ---------- 空状态 ---------- */
.cs-empty {
    text-align: center;
    padding: 72px 24px;
    border-radius: 24px;
    background: var(--c-bg-card);
    border: 1px dashed var(--c-border);
}
.cs-empty-emoji { font-size: 48px; margin-bottom: 14px; }
.cs-empty h2 { margin: 0 0 8px; font-size: 20px; font-weight: 800; color: var(--c-text); }
.cs-empty p { margin: 0 0 22px; font-size: 14px; color: var(--c-text-sub); }
.cs-empty-cats {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 22px;
}
.cs-empty-cats a {
    display: inline-flex;
    align-items: center;
    height: 32px;
    padding: 0 16px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    color: var(--c-text-sub);
    background: var(--c-bg-soft);
    text-decoration: none;
    transition: all .16s;
}
.cs-empty-cats a:hover {
    color: var(--cat-color);
    background: color-mix(in srgb, var(--cat-color) 10%, transparent);
    transform: translateY(-1px);
}
.cs-empty-btn {
    display: inline-flex;
    align-items: center;
    height: 44px;
    padding: 0 26px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    background: var(--cat-color);
    text-decoration: none;
    transition: transform .18s ease, box-shadow .18s ease;
    box-shadow: 0 10px 22px -8px color-mix(in srgb, var(--cat-color) 50%, transparent);
}
.cs-empty-btn:hover { transform: translateY(-2px); }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
    .cs-layout { grid-template-columns: 1fr; }
    .cs-aside { position: static; }
    .cs-filterbar { top: 64px; padding: 10px 0; }
}
@media (max-width: 720px) {
    .cs-wrap { padding: 12px 0 48px; }
    .cs-header { padding: 32px 18px 24px; }
    .cs-header-title { font-size: 24px; }
    .cs-header-sub { font-size: 13.5px; }
    .cs-search { height: 44px; padding-left: 18px; }
    .cs-news-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
    .cs-news-body { padding: 14px 14px 16px; }
    .cs-news-title { font-size: 14.5px; }
}
@media (max-width: 480px) {
    .cs-news-grid { grid-template-columns: 1fr; }
    .cs-filter-group:nth-of-type(1) { overflow-x: auto; flex-wrap: nowrap; }
    .cs-filter-group:nth-of-type(1)::-webkit-scrollbar { display: none; }
    .cs-filter-label { display: none; }
}