/* GEO 知识库前端样式 - 多主题（变量化）
 *
 * 主题通过 .gkb-theme-{slug} 选择器挂载 CSS 变量：
 *   - 全局：body 上加 gkb-theme-{选中主题}（后台设置）
 *   - 单页覆盖：短代码 [geo_kb theme="blue"] 给容器加 gkb-theme-blue
 * 变量名统一以 --gkb- 前缀，不影响站点其它元素。
 */

/* ===== 主题 1：紫韵（默认） ===== */
.gkb-theme-purple {
    --gkb-primary: #7c3aed;
    --gkb-primary-2: #8b5cf6;
    --gkb-primary-soft: #f3edff;
    --gkb-primary-deep: #5b21b6;
    --gkb-tag-bg: #f5f3ff;
    --gkb-tag-text: #5b21b6;
    --gkb-summary-bg: #f3edff;
    --gkb-summary-border: #7c3aed;
    --gkb-summary-text: #4b5563;
    --gkb-faq-bg: #faf8ff;
    --gkb-faq-border: #ede9fe;
    --gkb-faq-text: #4b5563;
    --gkb-surface: #ffffff;
    --gkb-surface-2: #ffffff;
    --gkb-text: #1e1b4b;
    --gkb-muted: #6b7280;
    --gkb-body-text: #1f2937;
    --gkb-bg: transparent;
    --gkb-border: #e5e7eb;
    --gkb-radius: 14px;
    --gkb-shadow: 0 4px 24px rgba(124, 58, 237, .06);
    --gkb-shadow-hover: 0 8px 32px rgba(124, 58, 237, .16);
    --gkb-active-glow: 0 4px 16px rgba(124, 58, 237, .25);
}

/* ===== 主题 2：蓝海 ===== */
.gkb-theme-blue {
    --gkb-primary: #2563eb;
    --gkb-primary-2: #3b82f6;
    --gkb-primary-soft: #eff6ff;
    --gkb-primary-deep: #1e40af;
    --gkb-tag-bg: #eff6ff;
    --gkb-tag-text: #1e40af;
    --gkb-summary-bg: #eff6ff;
    --gkb-summary-border: #2563eb;
    --gkb-summary-text: #475569;
    --gkb-faq-bg: #f8fbff;
    --gkb-faq-border: #dbeafe;
    --gkb-faq-text: #475569;
    --gkb-surface: #ffffff;
    --gkb-surface-2: #ffffff;
    --gkb-text: #0f172a;
    --gkb-muted: #64748b;
    --gkb-body-text: #1e293b;
    --gkb-bg: transparent;
    --gkb-border: #e2e8f0;
    --gkb-radius: 14px;
    --gkb-shadow: 0 4px 24px rgba(37, 99, 235, .06);
    --gkb-shadow-hover: 0 8px 32px rgba(37, 99, 235, .16);
    --gkb-active-glow: 0 4px 16px rgba(37, 99, 235, .25);
}

/* ===== 主题 3：青松 ===== */
.gkb-theme-green {
    --gkb-primary: #059669;
    --gkb-primary-2: #10b981;
    --gkb-primary-soft: #ecfdf5;
    --gkb-primary-deep: #065f46;
    --gkb-tag-bg: #ecfdf5;
    --gkb-tag-text: #065f46;
    --gkb-summary-bg: #ecfdf5;
    --gkb-summary-border: #059669;
    --gkb-summary-text: #475569;
    --gkb-faq-bg: #f6fdf9;
    --gkb-faq-border: #d1fae5;
    --gkb-faq-text: #475569;
    --gkb-surface: #ffffff;
    --gkb-surface-2: #ffffff;
    --gkb-text: #064e3b;
    --gkb-muted: #64748b;
    --gkb-body-text: #1e293b;
    --gkb-bg: transparent;
    --gkb-border: #e2e8f0;
    --gkb-radius: 14px;
    --gkb-shadow: 0 4px 24px rgba(5, 150, 105, .06);
    --gkb-shadow-hover: 0 8px 32px rgba(5, 150, 105, .16);
    --gkb-active-glow: 0 4px 16px rgba(5, 150, 105, .25);
}

/* ===== 主题 4：暖橙 ===== */
.gkb-theme-orange {
    --gkb-primary: #ea580c;
    --gkb-primary-2: #f97316;
    --gkb-primary-soft: #fff7ed;
    --gkb-primary-deep: #c2410c;
    --gkb-tag-bg: #fff7ed;
    --gkb-tag-text: #c2410c;
    --gkb-summary-bg: #fff7ed;
    --gkb-summary-border: #ea580c;
    --gkb-summary-text: #57534e;
    --gkb-faq-bg: #fffaf3;
    --gkb-faq-border: #fed7aa;
    --gkb-faq-text: #57534e;
    --gkb-surface: #ffffff;
    --gkb-surface-2: #ffffff;
    --gkb-text: #431407;
    --gkb-muted: #78716c;
    --gkb-body-text: #292524;
    --gkb-bg: transparent;
    --gkb-border: #e7e5e4;
    --gkb-radius: 14px;
    --gkb-shadow: 0 4px 24px rgba(234, 88, 12, .06);
    --gkb-shadow-hover: 0 8px 32px rgba(234, 88, 12, .16);
    --gkb-active-glow: 0 4px 16px rgba(234, 88, 12, .25);
}

/* ===== 主题 5：暗夜 ===== */
.gkb-theme-dark {
    --gkb-primary: #22d3ee;
    --gkb-primary-2: #38bdf8;
    --gkb-primary-soft: #0e2a33;
    --gkb-primary-deep: #a5f3fc;
    --gkb-tag-bg: #0e2a33;
    --gkb-tag-text: #a5f3fc;
    --gkb-summary-bg: #0e2a33;
    --gkb-summary-border: #22d3ee;
    --gkb-summary-text: #cbd5e1;
    --gkb-faq-bg: #0f172a;
    --gkb-faq-border: #1e3a4a;
    --gkb-faq-text: #cbd5e1;
    --gkb-surface: #111827;
    --gkb-surface-2: #111827;
    --gkb-text: #f1f5f9;
    --gkb-muted: #94a3b8;
    --gkb-body-text: #e2e8f0;
    --gkb-bg: #0b0f19;
    --gkb-border: #1f2937;
    --gkb-radius: 14px;
    --gkb-shadow: 0 4px 24px rgba(0, 0, 0, .4);
    --gkb-shadow-hover: 0 8px 32px rgba(34, 211, 238, .25);
    --gkb-active-glow: 0 4px 16px rgba(34, 211, 238, .35);
}

/* ===== 布局（颜色全部走变量） ===== */
.gkb-wrap {
    max-width: 1180px;
    margin: 0 auto;
    padding: 24px 16px 80px;
    color: var(--gkb-text);
    background: var(--gkb-bg);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft Yahei", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

/* 分类筛选 Tabs */
.gkb-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-bottom: 32px;
}

.gkb-tab {
    background: var(--gkb-surface);
    color: var(--gkb-text);
    border: 1px solid var(--gkb-border);
    border-radius: 10px;
    padding: 10px 18px;
    font-size: 14px;
    cursor: pointer;
    transition: all .2s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}
.gkb-tab:hover {
    border-color: var(--gkb-primary);
    color: var(--gkb-primary);
}
.gkb-tab.is-active {
    background: var(--gkb-primary);
    color: #fff;
    border-color: var(--gkb-primary);
    box-shadow: var(--gkb-active-glow);
}
.gkb-tab.is-active .gkb-count { color: rgba(255,255,255,.85); }
.gkb-count {
    display: inline-block;
    min-width: 22px;
    padding: 1px 7px;
    background: var(--gkb-primary-soft);
    color: var(--gkb-primary);
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    line-height: 18px;
    text-align: center;
}
.gkb-tab.is-active .gkb-count {
    background: rgba(255,255,255,.18);
}

/* 卡片网格 */
.gkb-panels { position: relative; }
.gkb-panel { display: none; }
.gkb-panel.is-active { display: block; }

.gkb-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
@media (max-width: 900px) { .gkb-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 600px) { .gkb-grid { grid-template-columns: 1fr; } }

.gkb-card {
    background: var(--gkb-surface);
    border: 1px solid var(--gkb-border);
    border-radius: var(--gkb-radius);
    overflow: hidden;
    box-shadow: var(--gkb-shadow);
    transition: transform .2s, box-shadow .2s, border-color .2s;
}
.gkb-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--gkb-shadow-hover);
    border-color: var(--gkb-primary-2);
}

.gkb-card-link {
    display: block;
    color: inherit;
    text-decoration: none;
    height: 100%;
}
.gkb-card-inner {
    padding: 22px 22px 18px;
}

.gkb-card-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}
.gkb-chip {
    background: var(--gkb-primary-soft);
    color: var(--gkb-primary);
    border-radius: 6px;
    font-size: 12px;
    padding: 3px 10px;
    font-weight: 600;
}
.gkb-time {
    font-size: 12px;
    color: var(--gkb-muted);
}

.gkb-card-title {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.5;
    margin: 0 0 10px;
    color: var(--gkb-text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.gkb-card-desc {
    color: var(--gkb-muted);
    font-size: 13.5px;
    line-height: 1.7;
    margin: 0 0 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.gkb-card-tags {
    list-style: none;
    padding: 0;
    margin: 0 0 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.gkb-tag {
    background: var(--gkb-tag-bg);
    color: var(--gkb-tag-text);
    padding: 3px 10px;
    border-radius: 6px;
    font-size: 12px;
}

.gkb-card-foot {
    border-top: 1px solid var(--gkb-border);
    padding-top: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--gkb-muted);
}
.gkb-readmore {
    color: var(--gkb-primary);
    font-weight: 600;
}

/* 加载更多 */
.gkb-loadmore-wrap {
    text-align: center;
    margin-top: 32px;
}
.gkb-loadmore {
    background: var(--gkb-surface-2);
    border: 1px dashed var(--gkb-primary);
    color: var(--gkb-primary);
    padding: 10px 28px;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 600;
    transition: all .2s;
}
.gkb-loadmore:hover {
    background: var(--gkb-primary);
    color: #fff;
}
.gkb-loader, .gkb-empty {
    text-align: center;
    padding: 40px;
    color: var(--gkb-muted);
    grid-column: 1 / -1;
}

/* 文章详情 */
.gkb-article {
    max-width: 820px;
    margin: 0 auto;
    padding: 24px 16px 80px;
    background: var(--gkb-bg);
    color: var(--gkb-text);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft Yahei", "Helvetica Neue", Helvetica, Arial, sans-serif;
}
.gkb-back {
    display: inline-flex;
    color: var(--gkb-primary);
    text-decoration: none;
    margin-bottom: 16px;
    font-size: 14px;
}
.gkb-article .gkb-chip {
    display: inline-block;
    margin-bottom: 14px;
}
.gkb-article-title {
    font-size: 36px;
    line-height: 1.3;
    margin: 0 0 20px;
    color: var(--gkb-text);
    font-weight: 800;
}
.gkb-summary {
    color: var(--gkb-summary-text);
    font-size: 17px;
    line-height: 1.7;
    margin: 0 0 18px;
    padding: 16px 18px;
    background: var(--gkb-summary-bg);
    border-radius: 10px;
    border-left: 3px solid var(--gkb-summary-border);
}
.gkb-article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 13px;
    color: var(--gkb-muted);
    margin-bottom: 14px;
}
.gkb-inline-tags {
    margin-bottom: 14px !important;
}
.gkb-sep {
    border: 0;
    border-top: 1px solid var(--gkb-border);
    margin: 18px 0 28px;
}

.gkb-article-body {
    line-height: 1.85;
    font-size: 16px;
    color: var(--gkb-body-text);
}
.gkb-article-body h2,
.gkb-article-body h3 {
    color: var(--gkb-text);
    margin: 32px 0 14px;
    line-height: 1.4;
    scroll-margin-top: 80px;
}
.gkb-article-body h2 { font-size: 26px; }
.gkb-article-body h3 { font-size: 20px; }
.gkb-article-body p { margin: 0 0 16px; }
.gkb-article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    background: var(--gkb-surface);
    border: 1px solid var(--gkb-border);
    border-radius: 8px;
    overflow: hidden;
}
.gkb-article-body th,
.gkb-article-body td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--gkb-border);
    text-align: left;
    font-size: 14px;
}
.gkb-article-body th {
    background: var(--gkb-primary-soft);
    color: var(--gkb-primary-deep);
    font-weight: 600;
}
.gkb-article-body ul,
.gkb-article-body ol { padding-left: 22px; }
.gkb-article-body li { margin-bottom: 6px; }
.gkb-article-body blockquote {
    margin: 20px 0;
    padding: 14px 18px;
    background: var(--gkb-summary-bg);
    border-left: 4px solid var(--gkb-summary-border);
    border-radius: 8px;
    color: var(--gkb-summary-text);
}

/* FAQ */
.gkb-faq-section {
    margin-top: 48px;
    padding: 24px;
    background: var(--gkb-faq-bg);
    border-radius: 12px;
    border: 1px solid var(--gkb-faq-border);
}
.gkb-faq-section h2 {
    color: var(--gkb-primary);
    font-size: 22px;
    margin: 0 0 16px;
}
.gkb-faq dt {
    font-weight: 700;
    color: var(--gkb-text);
    margin-top: 14px;
}
.gkb-faq dt:first-child { margin-top: 0; }
.gkb-faq dd {
    color: var(--gkb-faq-text);
    margin-left: 0;
    line-height: 1.7;
    margin-bottom: 10px;
}

/* 分类列表 */
.gkb-cat-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}
.gkb-cat-list li a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border: 1px solid var(--gkb-border);
    border-radius: 10px;
    text-decoration: none;
    color: var(--gkb-text);
    font-weight: 500;
    transition: .2s;
}
.gkb-cat-list li a:hover {
    border-color: var(--gkb-primary);
    color: var(--gkb-primary);
}

/* =========================================================
   布局风格（独立于配色维度）
   通过 .gkb-layout-{slug} 切换版式；DOM 结构不变，交互 JS 无感。
   仅在 magazine / sidebar 布局显示卡片封面图。
   ========================================================= */

/* 卡片封面：默认隐藏，供 magazine / sidebar 布局启用 */
.gkb-card-cover {
    display: none;
    width: 100%;
    min-height: 150px;
    background-size: cover;
    background-position: center;
    background-color: var(--gkb-primary-soft);
}
.gkb-layout-sidebar .gkb-card-cover,
.gkb-layout-magazine .gkb-card:first-child .gkb-card-cover {
    display: block;
}

/* ---- 布局 1：卡片网格（默认，保持原样） ---- */
.gkb-layout-grid .gkb-grid { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .gkb-layout-grid .gkb-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .gkb-layout-grid .gkb-grid { grid-template-columns: 1fr; } }

/* ---- 布局 2：竖向列表（高密度条目流） ---- */
.gkb-layout-list .gkb-grid { display: flex; flex-direction: column; gap: 0; }
.gkb-layout-list .gkb-card {
    border: 0;
    border-bottom: 1px solid var(--gkb-border);
    border-radius: 0;
    box-shadow: none;
    background: transparent;
}
.gkb-layout-list .gkb-card:last-child { border-bottom: 0; }
.gkb-layout-list .gkb-card:hover {
    transform: none;
    box-shadow: none;
    background: var(--gkb-surface);
}
.gkb-layout-list .gkb-card-inner { padding: 16px 6px; }
.gkb-layout-list .gkb-card-head { margin-bottom: 4px; }
.gkb-layout-list .gkb-card-tags,
.gkb-layout-list .gkb-card-foot { display: none; }
.gkb-layout-list .gkb-card-title { font-size: 17px; margin-bottom: 4px; -webkit-line-clamp: 1; }
.gkb-layout-list .gkb-card-desc { -webkit-line-clamp: 1; margin-bottom: 0; font-size: 13px; }

/* ---- 布局 3：侧边栏文档站（左导航 + 右内容） ---- */
.gkb-layout-sidebar {
    display: grid;
    grid-template-columns: 232px 1fr;
    gap: 36px;
    align-items: start;
}
.gkb-layout-sidebar .gkb-tabs {
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    margin-bottom: 0;
    position: sticky;
    top: 24px;
}
.gkb-layout-sidebar .gkb-tab { justify-content: space-between; }
.gkb-layout-sidebar .gkb-panels { min-width: 0; }
.gkb-layout-sidebar .gkb-grid { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 860px) {
    .gkb-layout-sidebar { grid-template-columns: 1fr; gap: 24px; }
    .gkb-layout-sidebar .gkb-tabs {
        flex-direction: row;
        flex-wrap: wrap;
        position: static;
        margin-bottom: 24px;
    }
}

/* ---- 布局 4：杂志大卡（首卡特色大图 + 小卡） ---- */
.gkb-layout-magazine .gkb-grid { grid-template-columns: repeat(2, 1fr); }
.gkb-layout-magazine .gkb-card:first-child { grid-column: 1 / -1; }
.gkb-layout-magazine .gkb-card:first-child .gkb-card-link { display: flex; flex-direction: row; }
.gkb-layout-magazine .gkb-card:first-child .gkb-card-cover {
    width: 48%;
    flex: 0 0 48%;
    min-height: 220px;
    border-radius: 0;
}
.gkb-layout-magazine .gkb-card:first-child .gkb-card-inner {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 28px 30px;
}
.gkb-layout-magazine .gkb-card:first-child .gkb-card-title { font-size: 26px; -webkit-line-clamp: 3; }
.gkb-layout-magazine .gkb-card:first-child .gkb-card-desc { -webkit-line-clamp: 3; font-size: 15px; }
@media (max-width: 700px) {
    .gkb-layout-magazine .gkb-card:first-child .gkb-card-link { flex-direction: column; }
    .gkb-layout-magazine .gkb-card:first-child .gkb-card-cover { width: 100%; flex: none; min-height: 160px; }
}

/* ---- 布局 5：极简紧凑（轻量高密度） ---- */
.gkb-layout-compact .gkb-grid { gap: 12px; }
.gkb-layout-compact .gkb-card { border-radius: 8px; box-shadow: none; }
.gkb-layout-compact .gkb-card-inner { padding: 16px; }
.gkb-layout-compact .gkb-card-title { font-size: 16px; }
.gkb-layout-compact .gkb-card-desc { font-size: 13px; -webkit-line-clamp: 1; }
.gkb-layout-compact .gkb-card-tags,
.gkb-layout-compact .gkb-card-foot { display: none; }
.gkb-layout-compact .gkb-tab { padding: 7px 13px; font-size: 13px; border-radius: 8px; }

/* =========================================================
   展示模式（嵌入首页 / 独立页面）
   通过 .gkb-mode-{slug} 切换整体定位；作用于 .gkb-wrap 容器本身，
   与主题(配色)、布局(版式)两个维度正交，互不影响。
   ========================================================= */

/* ---- 模式：嵌入首页（自包含卡片，适合首页/侧边栏区块） ---- */
.gkb-wrap.gkb-mode-embed {
    max-width: none;
    margin: 0;
    padding: 0;
    background: var(--gkb-surface);
    border: 1px solid var(--gkb-border);
    border-radius: calc(var(--gkb-radius) + 6px);
    box-shadow: var(--gkb-shadow);
    overflow: hidden;
}
.gkb-wrap.gkb-mode-embed .gkb-tabs {
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding: 14px 16px 4px;
    margin-bottom: 10px;
    scrollbar-width: thin;
    -webkit-overflow-scrolling: touch;
}
.gkb-wrap.gkb-mode-embed .gkb-tab { flex: 0 0 auto; }
.gkb-wrap.gkb-mode-embed .gkb-panels { padding: 0 16px 10px; }
.gkb-wrap.gkb-mode-embed .gkb-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
@media (max-width: 600px) {
    .gkb-wrap.gkb-mode-embed .gkb-grid { grid-template-columns: 1fr; }
}
.gkb-wrap.gkb-mode-embed .gkb-card-inner { padding: 16px; }
.gkb-wrap.gkb-mode-embed .gkb-card-title { font-size: 15px; }
.gkb-wrap.gkb-mode-embed .gkb-card-desc { -webkit-line-clamp: 1; font-size: 12.5px; margin-bottom: 10px; }
.gkb-wrap.gkb-mode-embed .gkb-loadmore-wrap { margin-top: 16px; padding-bottom: 6px; }
/* 嵌入模式下强制为普通块流，避免 sidebar 布局把容器变成两栏 */
.gkb-wrap.gkb-mode-embed.gkb-layout-sidebar { display: block; }
.gkb-wrap.gkb-mode-embed.gkb-layout-sidebar .gkb-tabs {
    flex-direction: row;
    flex-wrap: nowrap;
    position: static;
}
/* embed 页脚：「查看全部知识库」入口 */
.gkb-wrap.gkb-mode-embed .gkb-embed-footer {
    border-top: 1px solid var(--gkb-border);
    background: var(--gkb-primary-soft);
    margin-top: 8px;
}
.gkb-wrap.gkb-mode-embed .gkb-embed-footer a {
    display: block;
    text-align: center;
    padding: 13px;
    color: var(--gkb-primary);
    font-weight: 600;
    text-decoration: none;
    font-size: 13px;
    transition: background .2s;
}
.gkb-wrap.gkb-mode-embed .gkb-embed-footer a:hover { background: rgba(0, 0, 0, .03); }

/* ---- 模式：独立页面（完整版式，更大留白，适合专页） ---- */
.gkb-wrap.gkb-mode-page {
    max-width: 1240px;
    padding: 40px 24px 96px;
}
.gkb-wrap.gkb-mode-page .gkb-tabs { margin-bottom: 40px; }
.gkb-wrap.gkb-mode-page .gkb-grid { gap: 28px; }
.gkb-wrap.gkb-mode-page .gkb-card-inner { padding: 26px; }
.gkb-wrap.gkb-mode-page .gkb-card-title { font-size: 19px; }
.gkb-wrap.gkb-mode-page .gkb-card-desc { -webkit-line-clamp: 3; }
.gkb-wrap.gkb-mode-page .gkb-loadmore-wrap { margin-top: 40px; }
.gkb-wrap.gkb-mode-page.gkb-layout-sidebar { gap: 48px; }

/* ===== 搜索框 ===== */
.gkb-search {
    position: relative;
    display: flex;
    align-items: center;
    margin-bottom: 18px;
    background: var(--gkb-surface, #fff);
    border: 1px solid var(--gkb-border, #e5e7eb);
    border-radius: 999px;
    padding: 4px 6px 4px 14px;
    box-shadow: var(--gkb-shadow, 0 2px 12px rgba(0, 0, 0, .05));
}
.gkb-search-icon { font-size: 15px; opacity: .6; margin-right: 6px; }
.gkb-search-input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-size: 15px;
    padding: 10px 4px;
    color: var(--gkb-text, #1e1b4b);
}
.gkb-search-input::placeholder { color: var(--gkb-muted, #6b7280); }
.gkb-search-clear {
    border: none;
    background: rgba(0, 0, 0, .05);
    color: var(--gkb-muted, #6b7280);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    display: none;
}
.gkb-search .gkb-search-input:not(:placeholder-shown) ~ .gkb-search-clear { display: block; }

/* ===== 分类图标 ===== */
.gkb-cat-icon { margin-right: 6px; font-size: 15px; line-height: 1; }

/* ===== 精选徽标 ===== */
.gkb-card { position: relative; }
.gkb-badge-featured {
    position: absolute;
    top: 10px;
    left: 10px;
    z-index: 2;
    background: var(--gkb-primary, #7c3aed);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    padding: 3px 9px;
    border-radius: 999px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, .15);
}
.gkb-card.is-featured { border-color: var(--gkb-primary, #7c3aed); }

/* ===== 面包屑 ===== */
.gkb-breadcrumb {
    font-size: 13px;
    color: var(--gkb-muted, #6b7280);
    margin-bottom: 14px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
}
.gkb-breadcrumb a { color: var(--gkb-primary, #7c3aed); text-decoration: none; }
.gkb-breadcrumb a:hover { text-decoration: underline; }
.gkb-crumb-sep { color: var(--gkb-muted, #6b7280); opacity: .6; }
.gkb-crumb-current { color: var(--gkb-text, #1e1b4b); font-weight: 600; }

/* ===== 分享栏 ===== */
.gkb-share {
    margin-top: 40px;
    padding-top: 22px;
    border-top: 1px solid var(--gkb-border, #e5e7eb);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
}
.gkb-share-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--gkb-text, #1e1b4b);
}
.gkb-share-btns {
    display: inline-flex;
    gap: 10px;
    flex-wrap: wrap;
}
.gkb-share-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid var(--gkb-border, #e5e7eb);
    background: var(--gkb-surface, #fff);
    color: var(--gkb-text, #1e1b4b);
    border-radius: 999px;
    padding: 8px 16px;
    font-size: 13.5px;
    line-height: 1.2;
    cursor: pointer;
    transition: all .2s ease;
}
.gkb-share-btn:hover {
    border-color: var(--gkb-primary, #7c3aed);
    color: var(--gkb-primary, #7c3aed);
}
.gkb-share-btn.is-ok {
    border-color: #059669;
    color: #059669;
    background: #ecfdf5;
}