/**
 * 学习宝 (XuexiBao) — 站点样式
 * Bootstrap 5.3 之上 · 左侧边栏布局 + 主内容区
 */

/* =============================================================================
   1. Design tokens
   ============================================================================= */

:root {
    --site-accent: #2563eb;
    --site-surface: #ffffff;
    --site-text: #0f172a;
    --site-muted: #64748b;
    --sidebar-bg: #f1f5f9;
    --sidebar-width: 220px;
    --site-accent-soft: rgba(37, 99, 235, 0.08);

    --cat-learn: #3b82f6;
    --cat-love: #ec4899;
    --cat-course-article: #8b5cf6;
    --cat-course: #6366f1;
    --cat-geng: #f59e0b;
    --cat-keng: #06b6d4;
    --cat-sex: #ef4444;
    --cat-sm: #7c3aed;
    --cat-train: #10b981;
    --cat-toy: #e11d48;

    --radius-sm: 6px;
    --radius-md: 8px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
}

/* Thin scrollbars (Firefox + WebKit) */
* {
    scrollbar-width: thin;
    scrollbar-color: rgba(100, 116, 139, 0.4) transparent;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(100, 116, 139, 0.35);
    border-radius: 999px;
    border: 2px solid transparent;
    background-clip: padding-box;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(100, 116, 139, 0.55);
    background-clip: padding-box;
}

::selection {
    background: rgba(37, 99, 235, 0.22);
    color: var(--site-text);
}

/* =============================================================================
   2. Base
   ============================================================================= */

html {
    scroll-behavior: smooth;
}

.site-body {
    margin: 0;
    min-height: 100vh;
    color: var(--site-text);
    background-color: var(--site-surface);
    font-family: "Noto Sans SC", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-feature-settings: "kern" 1;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* 引入侧栏壳层后隐藏旧顶栏，避免双导航 */
body:has(.xb-sidebar) .site-header {
    display: none !important;
}

body:has(.xb-sidebar) > nav[aria-label="breadcrumb"] {
    background-color: #fff !important;
    border-color: #e2e8f0 !important;
}

body:has(.xb-sidebar) #main-content.flex-grow-1 {
    padding-top: 0 !important;
    padding-bottom: 0 !important;
}

/* =============================================================================
   3. App shell — sidebar + main
   ============================================================================= */

.xb-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1040;
    width: var(--sidebar-width);
    height: 100vh;
    height: 100dvh;
    background-color: var(--sidebar-bg);
    overflow-x: hidden;
    overflow-y: auto;
    border-right: 1px solid rgba(15, 23, 42, 0.06);
    display: flex;
    flex-direction: column;
}

.xb-sidebar__brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1rem 0.75rem;
    font-weight: 800;
    font-size: 1.05rem;
    letter-spacing: 0.03em;
    color: var(--site-text);
    text-decoration: none;
    flex-shrink: 0;
    border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

.xb-sidebar__brand:hover,
.xb-sidebar__brand:focus-visible {
    color: var(--site-accent);
}

.xb-sidebar__brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: 8px;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: #fff;
    font-size: 0.85rem;
    font-weight: 800;
    flex-shrink: 0;
}

.xb-sidebar__search {
    padding: 0 0.75rem 0.75rem;
    flex-shrink: 0;
}

.xb-sidebar__search .form-control {
    width: 100%;
    font-size: 0.8125rem;
    border-radius: var(--radius-sm);
    border-color: rgba(15, 23, 42, 0.12);
    padding: 0.4rem 0.65rem;
}

.xb-sidebar__search .form-control:focus {
    border-color: var(--site-accent);
    box-shadow: 0 0 0 0.2rem var(--site-accent-soft);
}

.xb-sidebar__nav {
    list-style: none;
    margin: 0;
    padding: 0.25rem 0.5rem 1rem;
    flex: 1;
}

.xb-sidebar__nav li {
    margin: 0;
}

.xb-sidebar__nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--site-text);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: background-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

.xb-sidebar__nav-link:hover,
.xb-sidebar__nav-link:focus-visible {
    background-color: rgba(15, 23, 42, 0.06);
    color: var(--site-text);
}

.xb-sidebar__nav-link.active {
    font-weight: 700;
    background-color: var(--site-accent-soft);
    color: var(--site-accent);
    box-shadow: inset 3px 0 0 var(--site-accent);
}

.xb-sidebar__nav-link.active[href*="/learn"] {
    box-shadow: inset 3px 0 0 var(--cat-learn);
    color: var(--cat-learn);
    background-color: rgba(59, 130, 246, 0.1);
}

.xb-sidebar__nav-link.active[href*="/love"] {
    box-shadow: inset 3px 0 0 var(--cat-love);
    color: var(--cat-love);
    background-color: rgba(236, 72, 153, 0.1);
}

.xb-sidebar__nav-link.active[href*="/course-articles"] {
    box-shadow: inset 3px 0 0 var(--cat-course-article);
    color: var(--cat-course-article);
    background-color: rgba(139, 92, 246, 0.1);
}

.xb-sidebar__nav-link.active[href*="/courses"] {
    box-shadow: inset 3px 0 0 var(--cat-course);
    color: var(--cat-course);
    background-color: rgba(99, 102, 241, 0.1);
}

.xb-sidebar__nav-link.active[href*="/geng/"] {
    box-shadow: inset 3px 0 0 var(--cat-geng);
    color: #b45309;
    background-color: rgba(245, 158, 11, 0.12);
}

.xb-sidebar__nav-link.active[href*="/keng/"] {
    box-shadow: inset 3px 0 0 var(--cat-keng);
    color: #0891b2;
    background-color: rgba(6, 182, 212, 0.1);
}

.xb-sidebar__nav-link.active[href*="/sex/"] {
    box-shadow: inset 3px 0 0 var(--cat-sex);
    color: var(--cat-sex);
    background-color: rgba(239, 68, 68, 0.1);
}

.xb-sidebar__nav-link.active[href*="/sm/"] {
    box-shadow: inset 3px 0 0 var(--cat-sm);
    color: var(--cat-sm);
    background-color: rgba(124, 58, 237, 0.1);
}

.xb-sidebar__nav-link.active[href*="/train"] {
    box-shadow: inset 3px 0 0 var(--cat-train);
    color: var(--cat-train);
    background-color: rgba(16, 185, 129, 0.1);
}

.xb-sidebar__nav-link.active[href*="/toys"] {
    box-shadow: inset 3px 0 0 var(--cat-toy);
    color: var(--cat-toy);
    background-color: rgba(225, 29, 72, 0.1);
}

.nav-svg-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    vertical-align: middle;
}

@keyframes specialMenuPulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(249, 115, 22, 0.2);
    }
    50% {
        box-shadow: 0 0 0 6px rgba(249, 115, 22, 0.05);
    }
}

@keyframes specialMenuShine {
    0%, 100% {
        left: -100%;
    }
    50% {
        left: 100%;
    }
}

.xb-sidebar__brand-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    border-radius: 8px;
}

.xb-nav-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
    background-color: var(--site-accent);
}

.xb-sidebar__footer {
    margin-top: auto;
    padding: 0.75rem 1rem 1rem;
    font-size: 0.75rem;
    color: var(--site-muted);
    line-height: 1.45;
    flex-shrink: 0;
    border-top: 1px solid rgba(15, 23, 42, 0.06);
}

.xb-main {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    min-height: 100dvh;
    background-color: #fff;
    padding: 24px 32px;
    display: flex;
    flex-direction: column;
}

.xb-sidebar.is-open {
    transform: translateX(0) !important;
    box-shadow: 4px 0 24px rgba(15, 23, 42, 0.12) !important;
}

.xb-sidebar-backdrop.is-visible {
    display: block !important;
    opacity: 1 !important;
}

body.xb-sidebar-open {
    overflow: hidden;
}

/* =============================================================================
   4. Mobile top bar
   ============================================================================= */

.xb-topbar {
    display: none;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    height: 48px;
    padding: 0 12px;
    background-color: #fff;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1030;
    border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

.xb-topbar__toggle,
.xb-topbar__search {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--site-text);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color 0.15s ease;
}

.xb-topbar__toggle:hover,
.xb-topbar__search:hover,
.xb-topbar__toggle:focus-visible,
.xb-topbar__search:focus-visible {
    background-color: rgba(15, 23, 42, 0.06);
}

.xb-topbar__brand {
    flex: 1;
    text-align: center;
    font-weight: 800;
    font-size: 1rem;
    color: var(--site-accent);
    text-decoration: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.xb-topbar__brand:hover {
    color: #1d4ed8;
}

.xb-sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1035;
    background: rgba(15, 23, 42, 0.35);
    opacity: 0;
    transition: opacity 0.2s ease;
}

body.xb-sidebar-open .xb-sidebar-backdrop {
    display: block;
    opacity: 1;
}

.xb-breadcrumb {
    padding: 0 0 0.75rem;
}

.xb-breadcrumb .breadcrumb {
    background: transparent;
    margin: 0;
}

.xb-content {
    flex: 1 0 auto;
    animation: xbContentFadeIn 0.4s ease-out;
}

@media (prefers-reduced-motion: reduce) {
    .xb-content {
        animation: none;
    }

    .xb-list-item:hover {
        transform: none;
    }

    .stat-tile:hover {
        transform: none;
    }

    .hot-search-chip:hover {
        transform: none;
    }

    :is(.xb-pagination, nav[aria-label="分页"] .pagination) .page-link:hover {
        transform: none;
    }
}

.xb-footer {
    margin-top: 2rem;
    padding: 1.25rem 0 1rem;
    border-top: 1px solid rgba(15, 23, 42, 0.08);
    font-size: 0.75rem;
    color: var(--site-muted);
    text-align: center;
    line-height: 1.6;
}

/* =============================================================================
   5. List view
   ============================================================================= */

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

.xb-list-item {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: 0.75rem 1rem;
    padding: 12px 0;
    border-bottom: 1px solid #e2e8f0;
    border-left: 3px solid transparent;
    margin-left: 0;
    transition: background-color 0.2s ease, border-left-color 0.2s ease, transform 0.2s ease,
        margin 0.2s ease, padding 0.2s ease, border-radius 0.2s ease;
}

.xb-list-item:last-child {
    border-bottom: none;
}

.xb-list-item:hover {
    background-color: #f8fafc;
    margin-left: -12px;
    margin-right: -12px;
    padding-left: 12px;
    padding-right: 12px;
    border-radius: var(--radius-sm);
    border-left-color: var(--site-accent);
    transform: translateX(2px);
}

.xb-board--learn .xb-list-item:hover {
    border-left-color: var(--cat-learn);
}

.xb-board--love .xb-list-item:hover {
    border-left-color: var(--cat-love);
}

.xb-board--geng .xb-list-item:hover {
    border-left-color: var(--cat-geng);
}

.xb-board--keng .xb-list-item:hover {
    border-left-color: var(--cat-keng);
}

.xb-board--course-article .xb-list-item:hover {
    border-left-color: var(--cat-course-article);
}

.xb-board--course .xb-list-item:hover {
    border-left-color: var(--cat-course);
}

.xb-board--sex .xb-list-item:hover {
    border-left-color: var(--cat-sex);
}

.xb-board--sm .xb-list-item:hover {
    border-left-color: var(--cat-sm);
}

.xb-board--train .xb-list-item:hover {
    border-left-color: var(--cat-train);
}

.xb-board--toy .xb-list-item:hover {
    border-left-color: var(--cat-toy);
}

.xb-list-item__body {
    flex: 1;
    min-width: 0;
}

.xb-list-item__title {
    font-weight: 500;
    color: var(--site-text);
    margin: 0 0 0.25rem;
    font-size: 1rem;
    line-height: 1.4;
}

.xb-list-item__title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.15s ease;
}

.xb-list-item__title a:hover,
.xb-list-item__title a:focus-visible {
    color: var(--site-accent);
}

.xb-list-item__meta {
    font-size: 0.8125rem;
    color: var(--site-muted);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.35rem 0.75rem;
}

.xb-list-item__excerpt {
    font-size: 0.8125rem;
    color: var(--site-muted);
    margin: 0.35rem 0 0;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.xb-list-item__actions {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--site-muted);
}

.xb-list-item__actions a {
    color: var(--site-muted);
    padding: 0.25rem;
    border-radius: var(--radius-sm);
    transition: color 0.15s ease, background-color 0.15s ease;
}

.xb-list-item__actions a:hover {
    color: var(--site-accent);
    background-color: var(--site-accent-soft);
}

/* =============================================================================
   6. Homepage board / section differentiation
   ============================================================================= */

.xb-board {
    margin-bottom: 2.5rem;
}

.xb-board__inner {
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem 1.25rem;
}

/* 创业资料 — 清爽列表 + 蓝调 */
.xb-board--learn .xb-board__inner {
    border-left: 3px solid var(--cat-learn);
    background: linear-gradient(90deg, rgba(59, 130, 246, 0.06) 0%, transparent 42%);
}

.xb-board--learn .section-header__title {
    border-left-color: var(--cat-learn);
}

.xb-board--learn .xb-list-item__title a:hover {
    color: var(--cat-learn);
}

/* 恋爱课程 — 暖粉、略偏卡片感 */
.xb-board--love .xb-board__inner {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.09) 0%, rgba(255, 255, 255, 0.9) 55%);
    border: 1px solid rgba(236, 72, 153, 0.18);
    box-shadow: 0 1px 0 rgba(236, 72, 153, 0.08);
}

.xb-board--love .section-header__title {
    border-left-color: var(--cat-love);
}

.xb-board--love .article-card,
.xb-board--love .xb-card {
    border: 1px solid rgba(236, 72, 153, 0.12) !important;
}

/* 梗多多 — 趣味橙、紧凑宫格 */
.xb-board--geng .xb-board__inner {
    border-left: 3px solid var(--cat-geng);
    background: rgba(245, 158, 11, 0.06);
}

.xb-board--geng .row {
    --bs-gutter-x: 0.5rem;
    --bs-gutter-y: 0.5rem;
}

.xb-board--geng .article-card .card-body {
    padding: 0.65rem 0.75rem;
}

.xb-board--geng .article-card .h6,
.xb-board--geng .card-title {
    font-size: 0.9rem;
}

/* 坑多多 — 警示感、青cyan、Q&A 列表 */
.xb-board--keng .xb-board__inner {
    border: 1px solid rgba(6, 182, 212, 0.25);
    background: rgba(6, 182, 212, 0.04);
}

.xb-board--keng .xb-list-item {
    border-left: 3px solid var(--cat-keng);
    border-bottom-color: rgba(6, 182, 212, 0.15);
    padding-left: 12px;
    margin-left: 0;
}

.xb-board--keng .xb-list-item:hover {
    margin-left: 0;
    padding-left: 12px;
    transform: translateX(2px);
}

.xb-board--keng .xb-list-item__title::before {
    content: "Q";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.25rem;
    height: 1.25rem;
    margin-right: 0.5rem;
    font-size: 0.65rem;
    font-weight: 800;
    color: #fff;
    background: var(--cat-keng);
    border-radius: 4px;
    vertical-align: middle;
}

.xb-geng-item {
    background: rgba(245, 158, 11, 0.04);
    border: 1px solid transparent;
    transition: border-color 0.15s ease, background-color 0.15s ease;
}

.xb-geng-item:hover {
    border-color: rgba(245, 158, 11, 0.25);
    background: rgba(245, 158, 11, 0.08);
}

/* =============================================================================
   7. Detail page
   ============================================================================= */

.xb-detail {
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.xb-detail .markdown-body {
    font-size: 1.02rem;
    line-height: 1.75;
}

/* =============================================================================
   8. Baidu Pan & copy
   ============================================================================= */

.xb-pan-card {
    border: none !important;
    border-radius: var(--radius-md) !important;
    border-left: 3px solid var(--site-accent) !important;
    background: #fff !important;
    color: var(--site-text) !important;
    box-shadow: var(--shadow-sm);
}

.xb-pan-card .opacity-75,
.xb-pan-card .small.opacity-75,
.xb-course-pan .opacity-75 {
    color: var(--site-muted) !important;
    opacity: 1 !important;
}

.copy-field {
    display: block;
    width: 100%;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.875rem;
    background: #f1f5f9 !important;
    color: var(--site-text) !important;
    border: 1px solid rgba(15, 23, 42, 0.08) !important;
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.75rem;
    word-break: break-all;
}

.xb-pan-card .btn-light {
    background-color: var(--site-accent);
    color: #fff;
    border: none;
    font-weight: 600;
}

.xb-pan-card .btn-light:hover {
    background-color: #1d4ed8;
    color: #fff;
}

.xb-pan-card .btn-outline-light {
    --bs-btn-color: var(--site-accent);
    --bs-btn-border-color: rgba(37, 99, 235, 0.35);
    --bs-btn-hover-bg: var(--site-accent-soft);
    --bs-btn-hover-border-color: var(--site-accent);
    color: var(--site-accent);
    border-color: rgba(37, 99, 235, 0.35);
    background: transparent;
}

.xb-course-pan {
    border-radius: var(--radius-md) !important;
    border-left: 3px solid var(--cat-course) !important;
    background: #fff !important;
    color: var(--site-text) !important;
    box-shadow: var(--shadow-sm);
}

.xb-course-pan .btn-light {
    background-color: var(--cat-course);
    color: #fff;
    border: none;
    font-weight: 600;
}

.xb-course-pan .btn-light:hover {
    filter: brightness(0.92);
    color: #fff;
}

.xb-course-pan .btn-outline-light {
    --bs-btn-color: var(--cat-course);
    color: var(--cat-course);
    border-color: rgba(99, 102, 241, 0.4);
    background: transparent;
}

.xb-course-pan .btn-outline-light:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--cat-course);
    color: #4f46e5;
}

.baidu-pan-block {
    border: none !important;
    border-radius: var(--radius-md) !important;
    border-left: 3px solid var(--site-accent);
    box-shadow: var(--shadow-sm);
    background: #fff;
}

.baidu-pan-block .card-body {
    padding: 1.25rem 1.5rem;
}

/* =============================================================================
   9. Page banner (thin accent + title)
   ============================================================================= */

.page-banner {
    position: relative;
    width: 100%;
    margin-bottom: 1.5rem;
    padding: 0.75rem 1rem 1rem;
    background: transparent;
    box-shadow: none;
    border: none;
    border-radius: var(--radius-md);
}

.page-banner::before {
    content: "";
    display: block;
    height: 4px;
    width: 100%;
    border-radius: 2px;
    margin-bottom: 0.75rem;
    background: var(--site-accent);
}

.page-banner--learn::before { background: var(--cat-learn); }
.page-banner--love::before { background: var(--cat-love); }
.page-banner--course-article::before { background: var(--cat-course-article); }
.page-banner--course::before { background: var(--cat-course); }
.page-banner--geng::before { background: var(--cat-geng); }
.page-banner--keng::before { background: var(--cat-keng); }
.page-banner--sex::before { background: var(--cat-sex); }
.page-banner--sm::before { background: var(--cat-sm); }
.page-banner--train::before { background: var(--cat-train); }
.page-banner--toy::before { background: var(--cat-toy); }
.page-banner--search::before { background: var(--site-accent); }

/* Section-specific banner washes (gradient + soft radial accent) */
.page-banner--learn {
    background-color: #fff;
    background-image:
        radial-gradient(ellipse 120% 90% at 0% 0%, rgba(59, 130, 246, 0.2), transparent 58%),
        linear-gradient(165deg, rgba(59, 130, 246, 0.08) 0%, rgba(255, 255, 255, 0.97) 45%, #fff 100%);
}

.page-banner--love {
    background-color: #fff;
    background-image:
        radial-gradient(ellipse 100% 85% at 100% 0%, rgba(236, 72, 153, 0.18), transparent 55%),
        linear-gradient(145deg, rgba(251, 207, 232, 0.35) 0%, rgba(255, 255, 255, 0.95) 50%, #fff 100%);
}

.page-banner--course-article {
    background-color: #fff;
    background-image:
        radial-gradient(ellipse 110% 80% at 15% 100%, rgba(139, 92, 246, 0.16), transparent 55%),
        linear-gradient(135deg, rgba(167, 139, 250, 0.12) 0%, rgba(255, 255, 255, 0.96) 48%, #fff 100%);
}

.page-banner--course {
    background-color: #fff;
    background-image:
        radial-gradient(ellipse 95% 75% at 0% 50%, rgba(99, 102, 241, 0.18), transparent 52%),
        linear-gradient(125deg, rgba(79, 70, 229, 0.1) 0%, rgba(255, 255, 255, 0.98) 55%, #fff 100%);
}

.page-banner--geng {
    background-color: #fff;
    background-image:
        radial-gradient(ellipse 100% 70% at 100% 100%, rgba(245, 158, 11, 0.2), transparent 50%),
        linear-gradient(160deg, rgba(253, 230, 138, 0.25) 0%, rgba(255, 255, 255, 0.98) 52%, #fff 100%);
}

.page-banner--keng {
    background-color: #fff;
    background-image:
        radial-gradient(ellipse 85% 90% at 0% 100%, rgba(6, 182, 212, 0.16), transparent 55%),
        linear-gradient(180deg, rgba(165, 243, 252, 0.35) 0%, rgba(255, 255, 255, 0.96) 50%, #fff 100%);
}

.page-banner--sex {
    background-color: #fff;
    background-image:
        radial-gradient(ellipse 90% 80% at 100% 0%, rgba(239, 68, 68, 0.18), transparent 52%),
        linear-gradient(135deg, rgba(254, 202, 202, 0.3) 0%, rgba(255, 255, 255, 0.97) 48%, #fff 100%);
}

.page-banner--sm {
    background-color: #faf5ff;
    background-image:
        radial-gradient(ellipse 80% 70% at 0% 0%, rgba(76, 29, 149, 0.22), transparent 50%),
        linear-gradient(145deg, rgba(49, 46, 129, 0.14) 0%, rgba(250, 245, 255, 0.95) 55%, #faf5ff 100%);
}

.page-banner--train {
    background-color: #fff;
    background-image:
        radial-gradient(ellipse 100% 85% at 50% 0%, rgba(16, 185, 129, 0.16), transparent 55%),
        linear-gradient(170deg, rgba(167, 243, 208, 0.35) 0%, rgba(255, 255, 255, 0.98) 50%, #fff 100%);
}

.page-banner--toy {
    background-color: #fff;
    background-image:
        radial-gradient(ellipse 105% 75% at 100% 50%, rgba(225, 29, 72, 0.14), transparent 52%),
        linear-gradient(128deg, rgba(251, 113, 133, 0.2) 0%, rgba(255, 228, 230, 0.45) 35%, rgba(255, 255, 255, 0.98) 70%, #fff 100%);
}

.page-banner--search {
    background-color: #fff;
    background-image:
        radial-gradient(ellipse 100% 80% at 50% 0%, rgba(37, 99, 235, 0.12), transparent 55%),
        linear-gradient(180deg, rgba(37, 99, 235, 0.06) 0%, #fff 70%);
}

.page-banner__inner {
    max-width: 72rem;
    margin: 0;
    padding: 0;
}

.page-banner__title {
    margin: 0 0 0.25rem;
    font-size: clamp(1.35rem, 2.5vw, 1.75rem);
    font-weight: 800;
    color: var(--site-text);
    letter-spacing: -0.02em;
}

.page-banner__subtitle {
    margin: 0;
    color: var(--site-muted);
    font-size: 0.9375rem;
    max-width: 40rem;
    line-height: 1.5;
}

/* 10. Pagination */
:is(.xb-pagination, nav[aria-label="分页"] .pagination) {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 0.25rem;
    margin: 1.5rem 0 0;
    padding: 0;
    list-style: none;
}

:is(.xb-pagination, nav[aria-label="分页"] .pagination) .page-item {
    margin: 0;
}

:is(.xb-pagination, nav[aria-label="分页"] .pagination) .page-link {
    border: none;
    border-radius: 999px !important;
    color: var(--site-text);
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.4rem 0.85rem;
    min-width: 2.35rem;
    text-align: center;
    background: rgba(241, 245, 249, 0.65);
    transition: background-color 0.18s ease, color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

:is(.xb-pagination, nav[aria-label="分页"] .pagination) .page-link:hover {
    background-color: var(--site-accent-soft);
    color: var(--site-accent);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.12);
    transform: translateY(-1px);
}

:is(.xb-pagination, nav[aria-label="分页"] .pagination) .page-item.active .page-link {
    background-color: var(--site-accent) !important;
    color: #fff !important;
    font-weight: 600;
    box-shadow: 0 2px 10px rgba(37, 99, 235, 0.28);
    transform: none;
}

:is(.xb-pagination, nav[aria-label="分页"] .pagination) .page-item.disabled .page-link {
    background-color: #e2e8f0 !important;
    color: var(--site-muted) !important;
    font-weight: 500;
    transform: none;
    box-shadow: none;
}

:is(.xb-pagination, nav[aria-label="分页"] .pagination) .page-item:not(.active):not(.disabled) .page-link:focus-visible {
    box-shadow: 0 0 0 0.2rem var(--site-accent-soft);
}

/* =============================================================================
   11. Animations
   ============================================================================= */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes xbContentFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.animate-in {
    opacity: 0;
}

.animate-in.is-visible {
    animation: fadeInUp 0.4s ease forwards;
}

/* =============================================================================
   12. Hero (首页)
   ============================================================================= */

.hero-section {
    position: relative;
    border: 1px solid rgba(15, 23, 42, 0.06);
    border-radius: var(--radius-md) !important;
    padding: 2rem 1.75rem !important;
    background-color: #fff;
    box-shadow: var(--shadow-sm);
}

@media (min-width: 768px) {
    .hero-section {
        padding: 2.5rem 2.5rem !important;
    }
}

.hero-section h1,
.hero-section .display-5 {
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--site-text);
}

.hero-section .form-control-lg {
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    font-size: 1.05rem;
    border-color: rgba(15, 23, 42, 0.1);
}

.hero-section .form-control-lg:focus {
    border-color: var(--site-accent);
    box-shadow: 0 0 0 0.2rem var(--site-accent-soft);
}

.hero-section .btn-lg.btn-primary {
    font-weight: 700;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.hero-visual,
.hero-illustration-wrap {
    border-radius: var(--radius-md);
}

/* =============================================================================
   13. Section headers
   ============================================================================= */

.section-header {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 0.75rem 1rem;
    margin-bottom: 1rem;
}

.section-header__title {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 700;
    padding-left: 0.75rem;
    border-left: 4px solid var(--site-accent);
    line-height: 1.3;
}

.section-header__link {
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--site-accent);
}

.section-header__link:hover {
    text-decoration: underline;
}

.section-header--learn .section-header__title { border-left-color: var(--cat-learn); }
.section-header--love .section-header__title { border-left-color: var(--cat-love); }
.section-header--course-article .section-header__title { border-left-color: var(--cat-course-article); }
.section-header--course .section-header__title { border-left-color: var(--cat-course); }
.section-header--geng .section-header__title { border-left-color: var(--cat-geng); }
.section-header--keng .section-header__title { border-left-color: var(--cat-keng); }
.section-header--sex .section-header__title { border-left-color: var(--cat-sex); }
.section-header--sm .section-header__title { border-left-color: var(--cat-sm); }
.section-header--train .section-header__title { border-left-color: var(--cat-train); }
.section-header--toy .section-header__title { border-left-color: var(--cat-toy); }

/* =============================================================================
   14. Stats
   ============================================================================= */

.stat-tile {
    background: #fff;
    border-radius: var(--radius-md) !important;
    border: none;
    border-left: 3px solid var(--site-accent);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.stat-tile:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.stat-tile .stat-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--site-accent);
    font-variant-numeric: tabular-nums;
    line-height: 1.2;
}

.stat-tile .stat-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    flex-wrap: wrap;
    color: var(--site-muted);
    margin-top: 0.25rem;
}

.xb-stat-icon {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    vertical-align: middle;
}

.xb-inline-svg {
    display: inline-block;
    vertical-align: -0.125em;
    flex-shrink: 0;
}

.xb-topbar__toggle .xb-inline-svg,
.xb-topbar__search .xb-inline-svg {
    width: 22px;
    height: 22px;
    vertical-align: middle;
}

.stat-tile--learn {
    border-left: 3px solid var(--cat-learn);
}
.stat-tile--learn .stat-value { color: var(--cat-learn); }
.stat-tile--love {
    border-left: 3px solid var(--cat-love);
}
.stat-tile--love .stat-value { color: var(--cat-love); }
.stat-tile--course-article {
    border-left: 3px solid var(--cat-course-article);
}
.stat-tile--course-article .stat-value { color: var(--cat-course-article); }
.stat-tile--course {
    border-left: 3px solid var(--cat-course);
}
.stat-tile--course .stat-value { color: var(--cat-course); }
.stat-tile--geng {
    border-left: 3px solid var(--cat-geng);
}
.stat-tile--geng .stat-value { color: var(--cat-geng); }
.stat-tile--keng {
    border-left: 3px solid var(--cat-keng);
}
.stat-tile--keng .stat-value { color: var(--cat-keng); }
.stat-tile--sex {
    border-left: 3px solid var(--cat-sex);
}
.stat-tile--sex .stat-value { color: var(--cat-sex); }
.stat-tile--sm {
    border-left: 3px solid var(--cat-sm);
}
.stat-tile--sm .stat-value { color: var(--cat-sm); }
.stat-tile--train {
    border-left: 3px solid var(--cat-train);
}
.stat-tile--train .stat-value { color: var(--cat-train); }
.stat-tile--toy {
    border-left: 3px solid var(--cat-toy);
}
.stat-tile--toy .stat-value { color: var(--cat-toy); }

.stat-tile--learn .stat-label .xb-stat-icon { color: var(--cat-learn); opacity: 0.9; }
.stat-tile--love .stat-label .xb-stat-icon { color: var(--cat-love); opacity: 0.9; }
.stat-tile--course-article .stat-label .xb-stat-icon { color: var(--cat-course-article); opacity: 0.9; }
.stat-tile--course .stat-label .xb-stat-icon { color: var(--cat-course); opacity: 0.9; }
.stat-tile--geng .stat-label .xb-stat-icon { color: var(--cat-geng); opacity: 0.9; }
.stat-tile--keng .stat-label .xb-stat-icon { color: var(--cat-keng); opacity: 0.9; }

/* =============================================================================
   15. Hot search chips
   ============================================================================= */

.hot-search-chip {
    font-weight: 500;
    border-radius: 999px !important;
    border: 1px solid rgba(15, 23, 42, 0.08) !important;
    background: linear-gradient(180deg, rgba(241, 245, 249, 0.95) 0%, rgba(226, 232, 240, 0.65) 100%) !important;
    color: var(--site-text) !important;
    padding-inline: 0.85rem !important;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
    transition: border-color 0.18s ease, background 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease,
        color 0.18s ease;
}

.hot-search-chip:hover {
    border-color: rgba(37, 99, 235, 0.35) !important;
    background: var(--site-accent-soft) !important;
    color: var(--site-accent) !important;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.12);
    transform: translateY(-1px);
}

.hot-search-chip:active {
    transform: translateY(0);
}

.hot-search-chip .trend-badge {
    font-size: 0.6rem;
    font-weight: 700;
    vertical-align: super;
    line-height: 1;
    padding: 0.15em 0.35em;
    margin-left: 0.15rem;
}

/* =============================================================================
   16. Cards & article list (详情与遗留卡片)
   ============================================================================= */

.xb-card,
.article-card {
    border: none !important;
    border-radius: var(--radius-md) !important;
    box-shadow: var(--shadow-sm);
    background: #fff;
    transition: box-shadow 0.2s ease;
    overflow: hidden;
}

.xb-card:hover,
.article-card:hover {
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
}

.article-card-thumb {
    background: #f1f5f9;
    border-radius: var(--radius-md) var(--radius-md) 0 0 !important;
}

.article-thumb-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.thumb-placeholder {
    flex-direction: column;
    gap: 0.35rem;
    background: #f1f5f9;
    color: var(--site-muted);
}

.thumb-placeholder .thumb-placeholder-icon {
    flex-shrink: 0;
}

.thumb-placeholder::after {
    content: "暂无封面";
    font-size: 0.7rem;
    font-weight: 500;
    opacity: 0.75;
}

.excerpt-clamp {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.xb-ratio {
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    overflow: hidden;
    background: #e2e8f0;
}

/* =============================================================================
   17. Markdown body
   ============================================================================= */

.markdown-body {
    box-sizing: border-box;
    min-width: 0;
    max-width: 100%;
    line-height: 1.75;
    font-size: 1.02rem;
}

.markdown-body img,
.markdown-body video {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
}

.markdown-body pre,
.markdown-body .highlight pre {
    background: #f1f5f9 !important;
    border: 1px solid rgba(15, 23, 42, 0.06);
    border-radius: var(--radius-sm);
    padding: 1rem 1.1rem;
}

.markdown-body code {
    background: rgba(15, 23, 42, 0.06);
    border-radius: 4px;
    padding: 0.15em 0.35em;
    font-size: 0.9em;
}

.markdown-body pre code {
    background: transparent;
    padding: 0;
    border-radius: 0;
}

/* =============================================================================
   18. Tree views
   ============================================================================= */

.xb-tree details {
    border: none;
}

.xb-tree details summary {
    cursor: pointer;
    list-style: none;
    padding: 0.4rem 0.6rem;
    margin: 0 -0.35rem;
    border-radius: var(--radius-sm);
    transition: background-color 0.15s ease;
}

.xb-tree details summary::-webkit-details-marker {
    display: none;
}

.xb-tree details summary:hover {
    background-color: rgba(15, 23, 42, 0.05);
}

.xb-tree a {
    color: var(--site-text);
    transition: color 0.15s ease;
}

.xb-tree a:hover {
    color: var(--site-accent);
}

.xb-tree__children {
    border-left-color: rgba(15, 23, 42, 0.1) !important;
}

/* =============================================================================
   19. Breadcrumb
   ============================================================================= */

nav[aria-label="breadcrumb"] .breadcrumb {
    --bs-breadcrumb-divider-color: var(--site-muted);
    margin-bottom: 0;
}

nav[aria-label="breadcrumb"] .breadcrumb-item a {
    color: var(--site-accent);
    text-decoration: none;
    font-weight: 500;
}

nav[aria-label="breadcrumb"] .breadcrumb-item a:hover {
    text-decoration: underline;
}

nav[aria-label="breadcrumb"] .breadcrumb-item.active {
    color: var(--site-muted);
}

/* =============================================================================
   20. Footer
   ============================================================================= */

.site-footer {
    background-color: #f8fafc !important;
    border-top: 1px solid rgba(15, 23, 42, 0.08) !important;
    position: relative;
    text-align: center;
}

.site-footer .container,
.site-footer .row {
    justify-content: center;
}

.site-footer-wave {
    display: block;
    width: 100%;
    height: auto;
    opacity: 0.85;
}

.site-footer .link-secondary:hover {
    color: var(--site-accent) !important;
}

/* =============================================================================
   21. Error pages
   ============================================================================= */

.error-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 50vh;
    padding: 3rem 1rem;
}

.error-page__code {
    font-size: clamp(4rem, 12vw, 7rem);
    font-weight: 800;
    line-height: 1;
    color: rgba(100, 116, 139, 0.45);
    letter-spacing: -0.04em;
}

.error-page__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--site-text);
    margin: 0.5rem 0;
}

.error-page__text {
    color: var(--site-muted);
    max-width: 26rem;
    margin-bottom: 1.5rem;
}

.error-page__art {
    width: min(100%, 320px);
    aspect-ratio: 4 / 3;
    margin-bottom: 1.5rem;
    border-radius: var(--radius-md);
    background: var(--site-accent-soft);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 160'%3E%3Crect fill='%232563eb' fill-opacity='0.08' x='24' y='32' width='152' height='96' rx='12'/%3E%3Cpath stroke='%2364748b' stroke-opacity='0.35' stroke-width='3' d='M48 100 L88 68 L120 92 L160 52' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-size: cover;
    background-position: center;
}

/* =============================================================================
   22. Legacy top navbar (未切侧栏时仍可用)
   ============================================================================= */

.site-header {
    border-bottom: 1px solid rgba(15, 23, 42, 0.06) !important;
    box-shadow: var(--shadow-sm) !important;
    background-color: #fff !important;
}

.site-header .navbar-brand {
    font-weight: 800;
    color: var(--site-accent) !important;
    letter-spacing: 0.04em;
}

.site-header .nav-link {
    font-weight: 500;
    color: var(--site-text);
    transition: color 0.15s ease;
}

.site-header .nav-link:hover,
.site-header .nav-link:focus-visible {
    color: var(--site-accent);
}

.site-search-form .form-control {
    border-radius: 999px;
    border-color: rgba(15, 23, 42, 0.12);
}

.site-search-form .form-control:focus {
    border-color: var(--site-accent);
    box-shadow: 0 0 0 0.2rem var(--site-accent-soft);
}

.site-search-form .btn {
    border-radius: 999px;
    font-weight: 600;
}

/* =============================================================================
   23. Category utilities
   ============================================================================= */

.text-cat-learn { color: var(--cat-learn) !important; }
.text-cat-love { color: var(--cat-love) !important; }
.text-cat-course-article { color: var(--cat-course-article) !important; }
.text-cat-course { color: var(--cat-course) !important; }
.text-cat-geng { color: var(--cat-geng) !important; }
.text-cat-keng { color: var(--cat-keng) !important; }
.text-cat-sex { color: var(--cat-sex) !important; }
.text-cat-sm { color: var(--cat-sm) !important; }
.text-cat-train { color: var(--cat-train) !important; }
.text-cat-toy { color: var(--cat-toy) !important; }

.bg-cat-learn-soft { background-color: rgba(59, 130, 246, 0.08) !important; }
.bg-cat-love-soft { background-color: rgba(236, 72, 153, 0.08) !important; }
.bg-cat-course-article-soft { background-color: rgba(139, 92, 246, 0.08) !important; }
.bg-cat-course-soft { background-color: rgba(99, 102, 241, 0.08) !important; }
.bg-cat-geng-soft { background-color: rgba(245, 158, 11, 0.1) !important; }
.bg-cat-keng-soft { background-color: rgba(6, 182, 212, 0.08) !important; }
.bg-cat-sex-soft { background-color: rgba(239, 68, 68, 0.08) !important; }
.bg-cat-sm-soft { background-color: rgba(124, 58, 237, 0.08) !important; }
.bg-cat-train-soft { background-color: rgba(16, 185, 129, 0.08) !important; }
.bg-cat-toy-soft { background-color: rgba(225, 29, 72, 0.08) !important; }

.border-cat-learn { border-color: var(--cat-learn) !important; }
.border-cat-love { border-color: var(--cat-love) !important; }
.border-cat-course-article { border-color: var(--cat-course-article) !important; }
.border-cat-course { border-color: var(--cat-course) !important; }
.border-cat-geng { border-color: var(--cat-geng) !important; }
.border-cat-keng { border-color: var(--cat-keng) !important; }
.border-cat-sex { border-color: var(--cat-sex) !important; }
.border-cat-sm { border-color: var(--cat-sm) !important; }
.border-cat-train { border-color: var(--cat-train) !important; }
.border-cat-toy { border-color: var(--cat-toy) !important; }

/* =============================================================================
   24. Skip link
   ============================================================================= */

.skip-link:focus {
    position: fixed !important;
    z-index: 1080;
    clip: auto !important;
    width: auto !important;
    height: auto !important;
}

/* =============================================================================
   25. Responsive
   ============================================================================= */

@media (max-width: 991.98px) {
    .xb-topbar {
        display: flex;
    }

    .xb-sidebar {
        transform: translateX(-100%);
        transition: transform 0.25s ease;
        box-shadow: none;
    }

    body.xb-sidebar-open .xb-sidebar {
        transform: translateX(0);
        box-shadow: 4px 0 24px rgba(15, 23, 42, 0.12);
    }

    .xb-main {
        margin-left: 0;
        padding: 16px;
    }

    .hero-section .row {
        text-align: center;
    }

    .hero-section .row > div:last-child {
        margin-top: 0.5rem;
    }

    .stats-bar .row {
        --bs-gutter-y: 0.75rem;
    }

    .stats-bar .col-6 {
        flex: 0 0 50%;
        max-width: 50%;
    }

    .article-card:hover,
    .xb-card:hover {
        box-shadow: var(--shadow-sm);
    }

    .stat-tile:hover {
        box-shadow: var(--shadow-sm);
        transform: none;
    }

    .xb-list-item:hover {
        transform: none;
    }

    .hot-search-chip:hover {
        transform: none;
    }

    :is(.xb-pagination, nav[aria-label="分页"] .pagination) .page-link:hover {
        transform: none;
    }

    .site-header .navbar-collapse {
        padding-top: 0.75rem;
    }

    .site-search-form {
        width: 100%;
        max-width: none;
        margin-top: 0.75rem;
    }
}

@media (min-width: 992px) {
    .xb-topbar {
        display: none !important;
    }

    .xb-sidebar-backdrop {
        display: none !important;
    }

    body.xb-sidebar-open .xb-sidebar {
        transform: none;
        box-shadow: none;
    }
}

/* =============================================================================
   Course detail: Windows-style outline tree + Baidu Pan strip
   ============================================================================= */

.toy-tree__nested {
    border-left: 1px dotted rgba(100, 116, 139, 0.45);
    margin-left: 0.35rem;
    padding-left: 0.65rem;
}

.toy-tree__svg {
    display: block;
    vertical-align: top;
}

.xb-explorer-tree {
    font-family: "Segoe UI", system-ui, -apple-system, "Noto Sans SC", sans-serif;
    font-size: 0.8125rem;
    line-height: 1.4;
    color: #1e1e1e;
    background: #fff;
    border: 1px solid #c8c8c8;
    border-radius: 4px;
    padding: 0.35rem 0.5rem 0.5rem;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.85);
}

.xb-explorer-children {
    list-style: none;
    margin: 0;
    padding: 0;
}

.xb-explorer-children--root {
    padding-top: 2px;
}

.xb-explorer-nested {
    margin: 0;
    padding: 0 0 0 1.15rem;
    border-left: 1px dotted #6f6f6f;
    margin-left: 0.55rem;
}

.xb-explorer-nested--collapsed {
    display: none;
}

.xb-explorer-item {
    margin: 0;
    padding: 0;
}

.xb-explorer-row {
    display: flex;
    align-items: flex-start;
    gap: 2px;
    padding: 1px 4px 2px 2px;
    margin: 0 -2px;
    border-radius: 2px;
    position: relative;
}

.xb-explorer-nested > .xb-explorer-item > .xb-explorer-row::before {
    content: "";
    position: absolute;
    left: -1.1rem;
    top: 0.72rem;
    width: 0.65rem;
    height: 0;
    border-top: 1px dotted #6f6f6f;
    pointer-events: none;
}

.xb-explorer-row:hover {
    background: rgba(0, 103, 192, 0.08);
}

.xb-explorer-toggle {
    flex: 0 0 18px;
    width: 18px;
    height: 18px;
    margin: 1px 0 0;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 2px;
    color: inherit;
}

.xb-explorer-toggle:hover {
    background: rgba(0, 0, 0, 0.06);
}

.xb-explorer-toggle--spacer {
    visibility: hidden;
    pointer-events: none;
}

.xb-explorer-chevron {
    display: flex;
    align-items: center;
    justify-content: center;
}

.xb-explorer-icon-slot {
    flex: 0 0 20px;
    width: 20px;
    margin-top: 1px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

.xb-explorer-icon-slot svg {
    display: block;
}

.xb-explorer-body {
    flex: 1;
    min-width: 0;
    padding-bottom: 2px;
}

.xb-explorer-title {
    font-weight: 500;
    color: #111;
}

.xb-explorer-media {
    font-size: 0.75rem;
    color: #5c5c5c;
    margin-top: 1px;
    word-break: break-word;
}

.xb-baidu-pan {
    border-radius: var(--radius-md);
    border: 1px solid rgba(41, 98, 255, 0.35);
    background: linear-gradient(135deg, #f8faff 0%, #eef3ff 100%);
    box-shadow: var(--shadow-sm);
    padding: 0.65rem 0.85rem;
    position: relative;
    overflow: hidden;
}

.xb-baidu-pan::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, #4d7cff, #1e4ed8);
}

.xb-baidu-pan__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.xb-baidu-pan__identity {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    min-width: 0;
}

.xb-baidu-pan__cloud {
    flex-shrink: 0;
    filter: drop-shadow(0 1px 2px rgba(30, 78, 216, 0.25));
}

.xb-baidu-pan__titles {
    display: flex;
    flex-direction: column;
    gap: 0.05rem;
    min-width: 0;
}

.xb-baidu-pan__name {
    font-weight: 700;
    font-size: 0.95rem;
    color: #1e3a8a;
    letter-spacing: 0.02em;
}

.xb-baidu-pan__hint {
    font-size: 0.7rem;
    color: #64748b;
    text-transform: none;
}

.xb-baidu-pan__download {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.38rem 0.95rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: #fff;
    text-decoration: none;
    border-radius: 6px;
    background: linear-gradient(180deg, #3b6cff, #1e4ed8);
    border: 1px solid rgba(30, 64, 175, 0.5);
    box-shadow: 0 1px 2px rgba(30, 58, 138, 0.35);
    transition: filter 0.15s ease, transform 0.1s ease;
}

.xb-baidu-pan__download:hover {
    color: #fff;
    filter: brightness(1.06);
}

.xb-baidu-pan__download:active {
    transform: translateY(1px);
}

.xb-baidu-pan__codes {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.65rem 1rem;
    margin-top: 0.55rem;
    padding-top: 0.5rem;
    border-top: 1px dashed rgba(100, 116, 139, 0.35);
}

.xb-baidu-pan__chip {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    color: #475569;
}

.xb-baidu-pan__chip-lbl {
    color: #64748b;
    white-space: nowrap;
}

.xb-baidu-pan__code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.8rem;
    font-weight: 600;
    color: #0f172a;
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(148, 163, 184, 0.45);
    border-radius: 4px;
    padding: 0.1rem 0.4rem;
    margin: 0;
}

.xb-baidu-pan__mini-copy {
    font-size: 0.68rem;
    padding: 0.12rem 0.45rem;
    line-height: 1.2;
    border-radius: 4px;
    border: 1px solid rgba(59, 108, 255, 0.45);
    background: #fff;
    color: #1e4ed8;
    cursor: pointer;
    font-weight: 500;
}

.xb-baidu-pan__mini-copy:hover {
    background: rgba(59, 108, 255, 0.08);
}