/* 
 * 版本: 1.1.0 - 启灵主题风格优化
 */

/* ========================================
   CSS 变量 - 继承启灵主题设计系统
   ======================================== */
:root {
    /* 颜色 - 与启灵主题一致 */
    --xb-primary: #2563eb;
    --xb-primary-dark: #1d4ed8;
    --xb-primary-light: #3b82f6;
    --xb-primary-50: rgba(37, 99, 235, 0.1);
    --xb-accent: #10b981;
    --xb-accent-dark: #059669;
    --xb-danger: #ef4444;

    /* 文字颜色 */
    --xb-text-dark: #1f2937;
    --xb-text-body: #374151;
    --xb-text-muted: #6b7280;
    --xb-text-light: #9ca3af;

    /* 灰色系 */
    --xb-gray-50: #f9fafb;
    --xb-gray-100: #f3f4f6;
    --xb-gray-200: #e5e7eb;
    --xb-gray-300: #d1d5db;
    --xb-gray-400: #9ca3af;
    --xb-gray-500: #6b7280;
    --xb-gray-600: #4b5563;
    --xb-gray-700: #374151;
    --xb-gray-800: #1f2937;
    --xb-gray-900: #111827;

    /* 背景色 */
    --xb-bg-page: #f3f4f6;
    --xb-bg-card: #ffffff;
    --xb-bg-card-hover: #f9fafb;

    /* 阴影 - 与启灵主题一致 */
    --xb-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --xb-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --xb-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --xb-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --xb-shadow-focus: 0 0 0 3px rgba(37, 99, 235, 0.15);

    /* 圆角 - 与启灵主题一致 */
    --xb-radius-sm: 6px;
    --xb-radius-md: 8px;
    --xb-radius-lg: 12px;
    --xb-radius-xl: 16px;
    --xb-radius-full: 9999px;

    /* 过渡 */
    --xb-transition-fast: all 0.15s ease;
    --xb-transition: all 0.3s ease;
    --xb-transition-slow: all 0.5s ease;

    /* 字体 - 系统字体栈 */
    --xb-font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;

    /* 间距 */
    --xb-spacing-xs: 4px;
    --xb-spacing-sm: 8px;
    --xb-spacing-md: 16px;
    --xb-spacing-lg: 24px;
    --xb-spacing-xl: 32px;
    --xb-shell-max-width: 1400px;
    --xb-desktop-bg-image: none;
    --xb-desktop-overlay-opacity: 0.58;
    --xb-desktop-bg-blur: 0px;
}

/* 暗色模式支持 - 使用启灵主题的类选择器 */
html.dark-mode .xb-nav-container {
    --xb-bg-page: #0f172a;
    --xb-bg-card: #1e293b;
    --xb-bg-card-hover: #334155;
    --xb-text-dark: #f1f5f9;
    --xb-text-body: #e2e8f0;
    --xb-text-muted: #94a3b8;
    --xb-text-light: #64748b;
    --xb-gray-50: #1e293b;
    --xb-gray-100: #1e293b;
    --xb-gray-200: #334155;
    --xb-gray-300: #475569;
    --xb-gray-800: #f1f5f9;
    --xb-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --xb-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
}

html.dark-mode .xb-nav-container::before {
    background:
        radial-gradient(920px 360px at 8% -12%, rgba(129, 140, 248, 0.2), rgba(129, 140, 248, 0) 70%),
        radial-gradient(760px 300px at 92% -8%, rgba(34, 211, 238, 0.16), rgba(34, 211, 238, 0) 72%);
}

/* ========================================
   主题预设 - 用户可切换
   ======================================== */

/* 小清新 - Fresh */
.xb-nav-container[data-theme="fresh"] {
    --xb-primary: #10b981;
    --xb-primary-dark: #059669;
    --xb-primary-light: #34d399;
    --xb-primary-50: rgba(16, 185, 129, 0.1);
    --xb-accent: #06b6d4;
    --xb-bg-page: #ecfdf5;
    --xb-bg-card: #ffffff;
}

/* 海洋 - Ocean */
.xb-nav-container[data-theme="ocean"] {
    --xb-primary: #0891b2;
    --xb-primary-dark: #0e7490;
    --xb-primary-light: #22d3ee;
    --xb-primary-50: rgba(8, 145, 178, 0.1);
    --xb-accent: #0284c7;
    --xb-bg-page: linear-gradient(135deg, #e0f7fa 0%, #b2ebf2 50%, #80deea 100%);
    --xb-bg-card: rgba(255, 255, 255, 0.95);
}

/* 暗夜 - Dark */
.xb-nav-container[data-theme="dark"] {
    --xb-primary: #818cf8;
    --xb-primary-dark: #6366f1;
    --xb-primary-light: #a5b4fc;
    --xb-primary-50: rgba(129, 140, 248, 0.15);
    --xb-accent: #22d3ee;
    --xb-bg-page: #0f172a;
    --xb-bg-card: #1e293b;
    --xb-bg-card-hover: #334155;
    --xb-text-dark: #f1f5f9;
    --xb-text-body: #e2e8f0;
    --xb-text-muted: #94a3b8;
    --xb-text-light: #64748b;
    --xb-gray-50: #1e293b;
    --xb-gray-100: #1e293b;
    --xb-gray-200: #334155;
    --xb-gray-300: #475569;
    --xb-gray-800: #f1f5f9;
}

/* 粉彩 - Pastel */
.xb-nav-container[data-theme="pastel"] {
    --xb-primary: #ec4899;
    --xb-primary-dark: #db2777;
    --xb-primary-light: #f472b6;
    --xb-primary-50: rgba(236, 72, 153, 0.1);
    --xb-accent: #a855f7;
    --xb-bg-page: linear-gradient(135deg, #fdf2f8 0%, #fce7f3 50%, #fbcfe8 100%);
    --xb-bg-card: rgba(255, 255, 255, 0.95);
}

/* 科技 - Tech */
.xb-nav-container[data-theme="tech"] {
    --xb-primary: #8b5cf6;
    --xb-primary-dark: #7c3aed;
    --xb-primary-light: #a78bfa;
    --xb-primary-50: rgba(139, 92, 246, 0.1);
    --xb-accent: #06b6d4;
    --xb-bg-page: linear-gradient(135deg, #1e1b4b 0%, #312e81 50%, #4338ca 100%);
    --xb-bg-card: rgba(30, 27, 75, 0.9);
    --xb-bg-card-hover: rgba(49, 46, 129, 0.9);
    --xb-text-dark: #e0e7ff;
    --xb-text-body: #c7d2fe;
    --xb-text-muted: #a5b4fc;
    --xb-text-light: #818cf8;
    --xb-gray-50: #312e81;
    --xb-gray-100: #312e81;
    --xb-gray-200: #4338ca;
    --xb-gray-300: #4f46e5;
    --xb-gray-800: #e0e7ff;
}

/* 日落 - Sunset */
.xb-nav-container[data-theme="sunset"] {
    --xb-primary: #f97316;
    --xb-primary-dark: #ea580c;
    --xb-primary-light: #fb923c;
    --xb-primary-50: rgba(249, 115, 22, 0.1);
    --xb-accent: #f59e0b;
    --xb-bg-page: linear-gradient(135deg, #fef3c7 0%, #fde68a 50%, #fcd34d 100%);
    --xb-bg-card: rgba(255, 255, 255, 0.95);
}

/* ========================================
   主题切换器 UI - 集成到搜索栏
   ======================================== */
.xb-theme-switcher {
    position: relative;
    display: inline-flex;
    margin-left: 0;
    z-index: 260;
}

.xb-wallpaper-switcher {
    position: relative;
    display: inline-flex;
}

.xb-theme-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--xb-radius-md);
    background: var(--xb-bg-card);
    border: 1px solid var(--xb-gray-200);
    box-shadow: var(--xb-shadow-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: var(--xb-transition);
}

.xb-theme-btn:hover {
    transform: scale(1.05);
    border-color: var(--xb-primary);
    box-shadow: var(--xb-shadow-md);
}

.xb-wallpaper-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--xb-radius-md);
    background: var(--xb-bg-card);
    border: 1px solid var(--xb-gray-200);
    box-shadow: var(--xb-shadow-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: var(--xb-transition);
}

.xb-wallpaper-btn:hover {
    transform: scale(1.05);
    border-color: var(--xb-primary);
    box-shadow: var(--xb-shadow-md);
}

.xb-theme-dropdown {
    position: absolute;
    top: 50px;
    right: 0;
    background: var(--xb-bg-card);
    border-radius: var(--xb-radius-lg);
    box-shadow: var(--xb-shadow-xl);
    padding: 8px;
    display: none;
    min-width: 140px;
    z-index: 3600;
}

.xb-theme-dropdown.active {
    display: block;
    animation: fadeInUp 0.2s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.xb-theme-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--xb-radius-md);
    cursor: pointer;
    transition: var(--xb-transition-fast);
    font-size: 14px;
    color: var(--xb-text-body);
}

.xb-theme-option:hover {
    background: var(--xb-gray-100);
}

.xb-theme-option.active {
    background: var(--xb-primary-50);
    color: var(--xb-primary);
    font-weight: 600;
}

.xb-theme-color {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid rgba(0, 0, 0, 0.1);
}

/* ========================================
   二维码模态框样式
   ======================================== */
.xb-qr-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
}

.xb-qr-modal-content {
    background: var(--xb-bg-card);
    padding: var(--xb-spacing-lg);
    border-radius: var(--xb-radius-xl);
    width: 90%;
    max-width: 400px;
    text-align: center;
    position: relative;
    box-shadow: var(--xb-shadow-xl);
}

.xb-qr-modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    font-size: 24px;
    cursor: pointer;
    color: var(--xb-text-muted);
    transition: var(--xb-transition-fast);
}

.xb-qr-modal-close:hover {
    color: var(--xb-danger);
}

.xb-qr-modal img {
    max-width: 100%;
    height: auto;
    margin-top: 10px;
    border-radius: var(--xb-radius-md);
}

/* ========================================
   全局容器样式
   ======================================== */
.xb-nav-container {
    background: var(--xb-bg-page);
    padding: var(--xb-spacing-lg);
    min-height: 100vh;
    box-sizing: border-box;
    max-width: 100vw;
    margin: 0;
    position: relative;
    overflow-x: hidden;
    z-index: 1;
    font-family: var(--xb-font-sans);
}

.xb-nav-container::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(920px 360px at 8% -12%, rgba(37, 99, 235, 0.16), rgba(37, 99, 235, 0) 70%),
        radial-gradient(760px 300px at 92% -8%, rgba(16, 185, 129, 0.12), rgba(16, 185, 129, 0) 72%);
    z-index: 0;
}

.xb-nav-container::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    opacity: 0;
}

.xb-nav-container > * {
    position: relative;
    z-index: 1;
}

/* 防止嵌套影响 */
.xb-nav-container * {
    box-sizing: border-box;
}

/* 页面标题 */
.entry-title {
    text-align: center;
    font-size: 2rem;
    color: var(--xb-text-dark);
    margin-bottom: var(--xb-spacing-xl);
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* 桌面风格专属结构（默认隐藏） */
.xb-desktop-hero,
.xb-desktop-rail,
.xb-desktop-bottom {
    display: none;
}

.xb-nav-container:not([data-layout-style="desktop"]) .xb-desktop-hero,
.xb-nav-container:not([data-layout-style="desktop"]) .xb-desktop-rail,
.xb-nav-container:not([data-layout-style="desktop"]) .xb-desktop-bottom {
    display: none !important;
}

/* ========================================
   搜索板块
   ======================================== */
.xb-nav-search {
    background: var(--xb-bg-card);
    border-radius: var(--xb-radius-xl);
    padding: var(--xb-spacing-lg);
    margin: 0 auto var(--xb-spacing-xl);
    max-width: var(--xb-shell-max-width);
    box-shadow: var(--xb-shadow-md);
    box-sizing: border-box;
    width: calc(100% - 32px);
    border: 1px solid var(--xb-gray-200);
    transition: var(--xb-transition);
    background-image: linear-gradient(160deg, rgba(255, 255, 255, 0.98), rgba(245, 249, 255, 0.96));
    position: relative;
    z-index: 30;
}

.xb-nav-search:hover {
    box-shadow: var(--xb-shadow-lg);
}

/* 调整内部内容居中 */
.xb-nav-search>* {
    max-width: 800px;
    margin: 0 auto;
}

/* 搜索选项卡 */
.xb-search-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--xb-spacing-sm);
    margin-bottom: var(--xb-spacing-md);
}

/* 搜索选项卡按钮 */
.xb-search-tab {
    padding: 8px 16px;
    border: none;
    background: var(--xb-gray-100);
    border-radius: var(--xb-radius-md);
    color: var(--xb-text-body);
    cursor: pointer;
    transition: var(--xb-transition);
    font-weight: 500;
    font-size: 14px;
}

.xb-search-tab:hover {
    background: var(--xb-gray-200);
    color: var(--xb-text-dark);
}

.xb-search-tab.active {
    background: var(--xb-primary);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

/* 搜索输入框包裹 */
.xb-search-input-wrapper {
    display: flex;
    align-items: center;
    background: var(--xb-bg-card);
    border-radius: var(--xb-radius-lg);
    padding: 6px 8px;
    border: 2px solid var(--xb-gray-200);
    transition: var(--xb-transition);
}

.xb-search-input-wrapper:focus-within {
    border-color: var(--xb-primary);
    box-shadow: var(--xb-shadow-focus);
}

/* 搜索输入框 */
#xb-search-input {
    flex: 1;
    padding: 12px 16px;
    border: none;
    background: transparent;
    color: var(--xb-text-dark);
    font-size: 16px;
    outline: none;
    font-family: var(--xb-font-sans);
}

#xb-search-input::placeholder {
    color: var(--xb-text-light);
}

/* 搜索按钮 */
#xb-search-btn {
    background: var(--xb-primary);
    border: none;
    border-radius: var(--xb-radius-md);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--xb-transition);
    flex-shrink: 0;
}

#xb-search-btn:hover {
    background: var(--xb-primary-dark);
    transform: scale(1.05);
}

/* 搜索图标 */
.xb-search-icon {
    width: 20px;
    height: 20px;
    stroke: #ffffff;
}

/* ========================================
   手机端菜单栏
   ======================================== */
.xb-mobile-menu {
    display: none;
    position: fixed;
    bottom: 24px;
    left: 24px;
    z-index: 1000;
}

/* 菜单图标 */
.menu-icon {
    font-size: 24px;
    cursor: pointer;
    color: #ffffff;
    background: var(--xb-primary);
    border-radius: var(--xb-radius-lg);
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--xb-shadow-lg);
    transition: var(--xb-transition);
}

.menu-icon:hover {
    background: var(--xb-primary-dark);
    transform: scale(1.05);
}

/* 手机端菜单内容 */
.xb-mobile-menu-content {
    position: fixed;
    top: 0;
    left: -280px;
    width: 280px;
    height: 100%;
    background: var(--xb-bg-card);
    z-index: 1001;
    padding: var(--xb-spacing-lg);
    overflow-y: auto;
    box-shadow: var(--xb-shadow-xl);
    transition: left 0.3s ease;
}

.xb-mobile-menu-content.active {
    left: 0;
}

/* 手机端菜单头部 */
.xb-mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--xb-spacing-lg);
    padding-bottom: var(--xb-spacing-md);
    border-bottom: 1px solid var(--xb-gray-200);
}

.xb-mobile-menu-header .xb-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--xb-text-dark);
    border-left: none;
    padding-left: 0;
    margin-bottom: 0;
}

/* 菜单关闭按钮 */
.menu-close {
    font-size: 24px;
    cursor: pointer;
    color: var(--xb-text-muted);
    transition: var(--xb-transition-fast);
    background: var(--xb-gray-100);
    border-radius: var(--xb-radius-md);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.menu-close:hover {
    color: #ffffff;
    background: var(--xb-danger);
}

/* ========================================
   主内容布局
   ======================================== */
.xb-nav-main {
    display: flex;
    gap: var(--xb-spacing-lg);
    margin: 0 auto;
    padding: 0 var(--xb-spacing-md);
    box-sizing: border-box;
    max-width: var(--xb-shell-max-width);
    width: calc(100% - 32px);
}

/* 高特异性清除 ul 和 li 默认边距 */
.xb-nav-container .xb-nav-sidebar ul,
.xb-nav-container .xb-mobile-menu-content ul {
    list-style: none;
    padding-left: 0;
    margin-left: 0;
}

.xb-nav-container .xb-nav-sidebar .xb-category-item,
.xb-nav-container .xb-mobile-menu-content .xb-category-item {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    margin: 4px 0;
    border-radius: var(--xb-radius-md);
    cursor: pointer;
    transition: var(--xb-transition);
    background: transparent;
    width: 100%;
    box-sizing: border-box;
    color: var(--xb-text-body);
}

.xb-nav-container .xb-nav-sidebar .xb-category-item:hover,
.xb-nav-container .xb-mobile-menu-content .xb-category-item:hover {
    background: var(--xb-gray-100);
    color: var(--xb-primary);
}

/* ========================================
   左边分类栏
   ======================================== */
.xb-nav-sidebar {
    width: 180px;
    background: var(--xb-bg-card);
    border-radius: var(--xb-radius-xl);
    padding: var(--xb-spacing-md);
    box-shadow: var(--xb-shadow-sm);
    border: 1px solid var(--xb-gray-200);
    position: sticky;
    top: 100px;
    height: fit-content;
    flex-shrink: 0;
}

/* 分类 */
.xb-category-item {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    margin: 4px 0;
    border-radius: var(--xb-radius-md);
    cursor: pointer;
    transition: var(--xb-transition);
    background: transparent;
}

.xb-category-item:hover {
    background: var(--xb-gray-100);
    color: var(--xb-primary);
}

.xb-category-item.active {
    background: var(--xb-primary-50);
    color: var(--xb-primary);
}

/* 分类图标 */
.xb-category-icon {
    width: 24px !important;
    height: 24px !important;
    margin-right: 10px !important;
    border-radius: var(--xb-radius-sm) !important;
    object-fit: cover;
}

/* 分类项文字 */
.xb-category-item span {
    color: inherit;
    font-size: 14px;
    font-weight: 500;
}

/* ========================================
   中间导航内容
   ======================================== */
.xb-nav-content {
    flex: 1;
    min-width: 0;
}

/* 导航板块 */
.xb-nav-section {
    background: var(--xb-bg-card);
    border-radius: var(--xb-radius-xl);
    padding: var(--xb-spacing-lg);
    margin-bottom: var(--xb-spacing-lg);
    box-shadow: var(--xb-shadow-sm);
    border: 1px solid var(--xb-gray-200);
    background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(247, 251, 255, 0.96));
}

/* 导航项容器 */
.xb-nav-items {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--xb-spacing-md);
}

/* 单个导航项 */
.xb-nav-item {
    display: flex;
    align-items: center;
    padding: 12px 14px;
    border-radius: var(--xb-radius-lg);
    text-decoration: none !important;
    color: var(--xb-text-dark);
    background: var(--xb-bg-card);
    transition: var(--xb-transition);
    box-shadow: var(--xb-shadow-sm);
    border: 1px solid var(--xb-gray-200);
    position: relative;
    height: auto;
    min-height: 64px;
    z-index: 10;
}

.xb-nav-item:hover {
    box-shadow: var(--xb-shadow-lg);
    transform: translateY(-4px);
    border-color: var(--xb-primary-light);
    z-index: 11;
}

/* 导航图标 */
.xb-nav-icon {
    width: 40px;
    height: 40px;
    margin-right: 12px;
    border-radius: var(--xb-radius-md);
    object-fit: cover;
    flex-shrink: 0;
}

/* 导航信息 */
.xb-nav-info {
    flex: 1;
    position: relative;
    min-width: 0;
}

/* 导航名称 */
.xb-nav-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--xb-text-dark);
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 导航描述（默认隐藏） */
.xb-nav-desc {
    font-size: 12px;
    color: var(--xb-text-muted);
    margin-top: 4px;
    display: none;
}

/* 导航描述（截断显示） */
.xb-nav-desc-short {
    font-size: 12px;
    color: var(--xb-text-muted);
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.4;
}

/* 导航描述（完整浮层显示） */
.xb-nav-desc-full {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: var(--xb-gray-800);
    color: #ffffff;
    border-radius: var(--xb-radius-md);
    padding: 10px 12px;
    box-shadow: var(--xb-shadow-lg);
    z-index: 100;
    width: 220px;
    font-size: 13px;
    line-height: 1.5;
    pointer-events: none;
}

.xb-nav-desc-full::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 20px;
    width: 12px;
    height: 12px;
    background: var(--xb-gray-800);
    transform: rotate(45deg);
}

/* 悬停时显示完整描述 */
.xb-nav-item:hover .xb-nav-desc-full {
    display: block;
}

/* ========================================
   右边小工具栏
   ======================================== */
.xb-nav-widgets {
    width: 300px;
    flex-shrink: 0;
}

/* 小工具 */
.xb-widget {
    background: var(--xb-bg-card);
    border-radius: var(--xb-radius-xl);
    padding: var(--xb-spacing-lg);
    margin-bottom: var(--xb-spacing-lg);
    box-shadow: var(--xb-shadow-sm);
    border: 1px solid var(--xb-gray-200);
    transition: var(--xb-transition);
    background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(247, 251, 255, 0.96));
}

.xb-widget:hover {
    box-shadow: var(--xb-shadow-md);
}

/* 日期显示 */
.xb-date {
    font-size: 15px;
    color: var(--xb-text-body);
}

/* 公告和广告 */
.xb-announcement,
.xb-ad {
    font-size: 14px;
    line-height: 1.7;
    color: var(--xb-text-body);
}

/* 广告图片 */
.xb-ad img {
    max-width: 100%;
    height: auto;
    border-radius: var(--xb-radius-md);
}

/* 导航数量 */
.xb-nav-count {
    font-size: 15px;
    color: var(--xb-primary);
    font-weight: 600;
}

/* 申请按钮 */
.xb-apply-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 10px 24px;
    background: var(--xb-primary);
    color: #ffffff;
    text-decoration: none !important;
    border-radius: var(--xb-radius-md);
    transition: var(--xb-transition);
    font-weight: 500;
    font-size: 14px;
    border: none;
    cursor: pointer;
}

.xb-apply-btn:hover {
    background: var(--xb-primary-dark);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

/* 文章列表 */
.xb-post-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.xb-post-item {
    display: flex;
    align-items: center;
    margin: 8px 0;
    color: var(--xb-text-body);
    text-decoration: none !important;
    font-size: 14px;
    position: relative;
    padding: 8px 0 8px 36px;
    transition: var(--xb-transition-fast);
    border-radius: var(--xb-radius-sm);
}

/* 文章编号 */
.xb-post-item::before {
    content: attr(data-index);
    position: absolute;
    left: 0;
    width: 24px;
    height: 24px;
    background: var(--xb-gray-100);
    color: var(--xb-text-muted);
    border-radius: var(--xb-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    transition: var(--xb-transition-fast);
}

.xb-post-item:nth-child(1)::before {
    background: var(--xb-primary);
    color: #ffffff;
}

.xb-post-item:nth-child(2)::before {
    background: var(--xb-primary-light);
    color: #ffffff;
}

.xb-post-item:nth-child(3)::before {
    background: var(--xb-accent);
    color: #ffffff;
}

/* 文章hover效果 */
.xb-post-item:hover {
    color: var(--xb-primary);
    background: var(--xb-gray-50);
}

/* 标题样式 */
.xb-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--xb-text-dark);
    border-left: 3px solid var(--xb-primary);
    padding-left: 12px;
    margin-bottom: var(--xb-spacing-md);
}

/* 提示框 */
.xb-toast {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--xb-gray-800);
    color: #ffffff;
    padding: 16px 32px;
    border-radius: var(--xb-radius-lg);
    display: none;
    z-index: 9999;
    box-shadow: var(--xb-shadow-xl);
    font-size: 14px;
}

/* ========================================
   电脑端适配
   ======================================== */
@media (min-width: 769px) {
    .xb-nav-items {
        grid-template-columns: repeat(4, 1fr);
    }

    .xb-nav-item {
        min-width: 0;
    }
}

/* ========================================
   平板端适配
   ======================================== */
@media (max-width: 1200px) {
    .xb-nav-widgets {
        width: 260px;
    }

    .xb-nav-items {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ========================================
   手机端适配
   ======================================== */
@media (max-width: 768px) {
    .xb-nav-container {
        padding: var(--xb-spacing-md);
    }

    .entry-title {
        font-size: 1.5rem;
        margin-bottom: var(--xb-spacing-lg);
    }

    .xb-nav-search {
        padding: var(--xb-spacing-md);
        margin-bottom: var(--xb-spacing-lg);
        max-width: 100%;
    }

    .xb-search-tabs {
        gap: 6px;
    }

    .xb-search-tab {
        padding: 6px 12px;
        font-size: 13px;
    }

    .xb-search-input-wrapper {
        padding: 4px 6px;
    }

    #xb-search-input {
        padding: 10px 12px;
        font-size: 15px;
    }

    #xb-search-btn {
        width: 40px;
        height: 40px;
    }

    .xb-search-icon {
        width: 18px;
        height: 18px;
    }

    .xb-mobile-menu {
        display: block;
    }

    .xb-nav-main {
        flex-direction: column;
        padding: 0;
    }

    .xb-nav-sidebar {
        display: none;
    }

    .xb-mobile-menu-content .xb-category-item {
        display: flex;
        align-items: center;
        padding: 12px 14px;
        margin: 6px 0;
        background: var(--xb-gray-50);
        border-radius: var(--xb-radius-md);
        transition: var(--xb-transition);
        border-left: 3px solid transparent;
    }

    .xb-mobile-menu-content .xb-category-item:hover {
        background: var(--xb-gray-100);
        border-left-color: var(--xb-primary);
    }

    .xb-mobile-menu-content .xb-category-icon {
        width: 24px;
        height: 24px;
        margin-right: 12px;
        border-radius: var(--xb-radius-sm);
    }

    .xb-mobile-menu-content .xb-category-item span {
        font-size: 14px;
        font-weight: 500;
        color: var(--xb-text-body);
        transition: var(--xb-transition-fast);
    }

    .xb-mobile-menu-content .xb-category-item:hover span {
        color: var(--xb-primary);
    }

    .xb-nav-content {
        width: 100%;
        max-width: 100%;
    }

    .xb-nav-section {
        padding: var(--xb-spacing-md);
    }

    .xb-nav-items {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--xb-spacing-sm);
    }

    .xb-nav-item {
        padding: 10px 12px;
        min-height: 56px;
    }

    .xb-nav-icon {
        width: 32px;
        height: 32px;
        margin-right: 10px;
    }

    .xb-nav-name {
        font-size: 13px;
    }

    .xb-nav-desc-short {
        font-size: 11px;
    }

    .xb-nav-desc-full {
        width: 160px;
    }

    .xb-nav-widgets {
        width: 100%;
    }

    .xb-widget {
        padding: var(--xb-spacing-md);
    }

    .xb-title {
        font-size: 15px;
    }

    .xb-date,
    .xb-nav-count {
        font-size: 14px;
    }

    .xb-announcement,
    .xb-ad {
        font-size: 13px;
    }

    .xb-post-item {
        font-size: 13px;
        padding-left: 32px;
    }

    .xb-post-item::before {
        width: 22px;
        height: 22px;
        font-size: 11px;
    }
}

/* 超小屏幕 */
@media (max-width: 480px) {
    .xb-nav-items {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   数字时钟样式
   ======================================== */
.digital-clock {
    position: relative;
    color: #fff;
    background: linear-gradient(135deg, var(--xb-gray-800), var(--xb-gray-700));
    width: 100%;
    margin-top: 10px;
    box-shadow: var(--xb-shadow-md);
    border-radius: var(--xb-radius-lg);
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    padding: var(--xb-spacing-md);
}

@keyframes glowing {
    0% {
        background-position: 0 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0 50%;
    }
}

.time {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hours,
.dots,
.minutes {
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 600;
    padding: 0 10px;
}

.hours,
.minutes {
    font-size: 1.5em;
}

.dots {
    color: var(--xb-gray-400);
}

.hours {
    background: linear-gradient(90deg, var(--xb-primary), var(--xb-primary-light));
    -webkit-text-fill-color: transparent;
    -webkit-background-clip: text;
    background-clip: text;
}

.minutes {
    background: linear-gradient(90deg, var(--xb-accent), #34d399);
    -webkit-text-fill-color: transparent;
    -webkit-background-clip: text;
    background-clip: text;
}

.right-side {
    position: relative;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    margin-left: 10px;
}

.period,
.seconds {
    font-size: 0.75em;
    font-weight: 500;
}

.period {
    transform: translateY(-20px);
    background: linear-gradient(90deg, #fbbf24, #f59e0b);
    -webkit-text-fill-color: transparent;
    -webkit-background-clip: text;
    background-clip: text;
}

.seconds {
    transform: translateY(16px);
    background: linear-gradient(90deg, var(--xb-accent), var(--xb-primary));
    -webkit-text-fill-color: transparent;
    -webkit-background-clip: text;
    background-clip: text;
}

.calender {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 5px;
    color: var(--xb-gray-400);
    font-size: 12px;
}

.day-name,
.day-num,
.year {
    margin-left: 8px;
}

/* ========================================
   联系方式样式
   ======================================== */
.xb-contact-items {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.xb-contact-item {
    display: flex;
    align-items: center;
    font-size: 14px;
    color: var(--xb-text-body);
    padding: 8px 0;
}

.xb-contact-item .icon {
    font-size: 22px;
    margin-right: 12px;
    color: var(--xb-primary);
}

.xb-contact-item a {
    display: flex;
    align-items: center;
    color: var(--xb-text-body);
    text-decoration: none !important;
    transition: var(--xb-transition-fast);
}

.xb-contact-item a:hover {
    color: var(--xb-primary);
}

.xb-contact-item span {
    line-height: 1.5;
}

.xb-contact-qr {
    position: relative;
}

.xb-qr-popup {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--xb-bg-card);
    border-radius: var(--xb-radius-md);
    padding: 8px;
    box-shadow: var(--xb-shadow-lg);
    z-index: 100;
    border: 1px solid var(--xb-gray-200);
}

.xb-qr-popup img {
    max-width: 100px !important;
    max-height: 100px !important;
    border-radius: var(--xb-radius-sm);
}

.xb-contact-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

/* ========================================
   热榜板块样式
   ======================================== */
.xb-hotlist-widget {
    background: var(--xb-bg-card);
    border-radius: var(--xb-radius-xl);
    padding: var(--xb-spacing-lg);
    margin-bottom: var(--xb-spacing-lg);
    box-shadow: var(--xb-shadow-sm);
    border: 1px solid var(--xb-gray-200);
    width: 100%;
    box-sizing: border-box;
}

.xb-hotlist-tabs {
    display: flex;
    justify-content: flex-start;
    gap: 8px;
    margin-bottom: var(--xb-spacing-md);
    padding-bottom: 4px;
}

.xb-hotlist-tab {
    padding: 6px 14px;
    border: none;
    background: var(--xb-gray-100);
    border-radius: var(--xb-radius-md);
    color: var(--xb-text-body);
    cursor: pointer;
    transition: var(--xb-transition);
    font-weight: 500;
    font-size: 13px;
    white-space: nowrap;
}

.xb-hotlist-tab:hover {
    background: var(--xb-gray-200);
    color: var(--xb-text-dark);
}

.xb-hotlist-tab.active {
    background: var(--xb-primary);
    color: #ffffff;
}

.xb-hotlist-items {
    list-style: none;
    padding: 0;
    margin: 0 !important;
}

.xb-hotlist-item {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    transition: var(--xb-transition-fast);
    background: var(--xb-gray-50);
    border-radius: var(--xb-radius-md);
    margin-bottom: 6px;
}

.xb-hotlist-item:hover {
    background: var(--xb-gray-100);
}

.xb-hotlist-rank {
    width: 26px;
    height: 26px;
    line-height: 26px;
    text-align: center;
    background: var(--xb-gray-200);
    color: var(--xb-text-muted);
    border-radius: var(--xb-radius-sm);
    margin-right: 12px;
    font-size: 13px;
    font-weight: 600;
    flex-shrink: 0;
}

.xb-hotlist-rank.top-rank {
    background: var(--xb-primary);
    color: #ffffff;
}

.xb-hotlist-link {
    display: flex;
    align-items: center;
    text-decoration: none !important;
    color: var(--xb-text-body);
    flex: 1;
    overflow: hidden;
}

.xb-hotlist-link:hover {
    color: var(--xb-primary);
}

.xb-hotlist-icon {
    width: 22px;
    height: 22px;
    margin-right: 10px;
    border-radius: var(--xb-radius-sm);
    object-fit: cover;
    flex-shrink: 0;
}

.xb-hotlist-name {
    font-size: 14px;
    font-weight: 500;
    color: inherit;
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.xb-hotlist-count {
    font-size: 12px;
    color: var(--xb-text-light);
    margin-left: 12px;
    flex-shrink: 0;
}

/* 避免冲突 */
.hot-panel {
    display: none !important;
}

/* ========================================
   安全提示框模态框
   ======================================== */
.xb-safety-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: auto;
    box-sizing: border-box;
}

.xb-safety-modal-content {
    background: var(--xb-bg-card);
    border-radius: var(--xb-radius-xl);
    padding: var(--xb-spacing-lg);
    width: 90%;
    max-width: 420px;
    box-shadow: var(--xb-shadow-xl);
    text-align: center;
    position: relative;
    margin: auto;
}

.xb-safety-modal-icon {
    font-size: 48px;
    margin-bottom: var(--xb-spacing-md);
    display: block;
}

.xb-safety-modal-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--xb-text-dark);
    margin-bottom: var(--xb-spacing-sm);
}

.xb-safety-modal-text {
    font-size: 14px;
    color: var(--xb-text-muted);
    line-height: 1.6;
    margin-bottom: var(--xb-spacing-lg);
    word-break: break-all;
}

.xb-safety-modal-buttons {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.xb-safety-modal-btn {
    padding: 10px 24px;
    border: none;
    border-radius: var(--xb-radius-md);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--xb-transition);
}

.xb-safety-modal-btn.cancel {
    background-color: var(--xb-gray-200);
    color: var(--xb-text-body);
}

.xb-safety-modal-btn.cancel:hover {
    background-color: var(--xb-gray-300);
}

.xb-safety-modal-btn.continue {
    background-color: var(--xb-primary);
    color: #ffffff;
}

.xb-safety-modal-btn.continue:hover {
    background-color: var(--xb-primary-dark);
}

/* 手机端适配 - 安全模态框 */
@media (max-width: 768px) {
    .xb-safety-modal-content {
        width: 95%;
        padding: var(--xb-spacing-md);
    }

    .xb-safety-modal-icon {
        font-size: 36px;
    }

    .xb-safety-modal-title {
        font-size: 16px;
    }

    .xb-safety-modal-text {
        font-size: 13px;
    }

    .xb-safety-modal-btn {
        padding: 8px 18px;
        font-size: 13px;
    }

    .xb-hotlist-tab {
        padding: 6px 12px;
        font-size: 12px;
    }

    .xb-hotlist-item {
        padding: 8px 10px;
        margin-bottom: 4px;
    }

    .xb-hotlist-rank {
        width: 22px;
        height: 22px;
        line-height: 22px;
        font-size: 11px;
        margin-right: 10px;
    }

    .xb-hotlist-icon {
        width: 20px;
        height: 20px;
        margin-right: 8px;
    }

    .xb-hotlist-name {
        font-size: 13px;
    }

    .xb-hotlist-count {
        font-size: 11px;
        margin-left: 8px;
    }
}

/* ========================================
   推荐导航区域
   ======================================== */
.xb-recommended-section {
    border-bottom: 1px solid var(--xb-gray-200);
    margin-bottom: var(--xb-spacing-lg);
    padding-bottom: var(--xb-spacing-lg);
}

.xb-recommended-section .xb-title {
    color: var(--xb-danger);
    font-size: 1.25em;
}

/* ========================================
   用户自定义导航模态框样式
   ======================================== */
.xb-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 9999;
    display: none;
    justify-content: center;
    align-items: center;
    animation: xb-modal-fade-in 0.3s ease;
}

@keyframes xb-modal-fade-in {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes xb-modal-slide-in {
    from {
        transform: translate(-50%, -50%) scale(0.9);
        opacity: 0;
    }

    to {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
}

.xb-modal-content {
    background: var(--xb-bg-card);
    padding: var(--xb-spacing-xl);
    border-radius: var(--xb-radius-xl);
    width: 90%;
    max-width: 440px;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: var(--xb-shadow-xl);
    box-sizing: border-box;
    animation: xb-modal-slide-in 0.3s ease;
}

.xb-modal-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--xb-primary);
    border-radius: var(--xb-radius-xl) var(--xb-radius-xl) 0 0;
}

.xb-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    color: var(--xb-text-muted);
    background: var(--xb-gray-100);
    border-radius: var(--xb-radius-md);
    line-height: 1;
    transition: var(--xb-transition);
}

.xb-modal-close:hover {
    color: #fff;
    background: var(--xb-danger);
    transform: rotate(90deg);
}

#xb-safety-modal .xb-safety-cancel {
    border: 1px solid var(--xb-gray-300) !important;
    background: var(--xb-gray-100) !important;
    color: var(--xb-text-body) !important;
    border-radius: var(--xb-radius-md) !important;
    padding: 8px 16px !important;
    cursor: pointer;
    transition: var(--xb-transition-fast);
}

#xb-safety-modal .xb-safety-cancel:hover {
    border-color: var(--xb-gray-400) !important;
    background: var(--xb-gray-200) !important;
    color: var(--xb-text-dark) !important;
}

#xb-safety-modal .xb-safety-go {
    padding: 8px 16px;
}

#xb-safety-modal .xb-safety-title-ui {
    margin-top: 0;
    margin-bottom: 10px;
}

#xb-safety-modal .xb-safety-text-ui {
    margin: 0 0 6px;
    color: var(--xb-text-body);
}

#xb-safety-modal .xb-safety-name {
    margin: 0 0 6px;
    font-weight: 700;
    color: var(--xb-text-dark);
}

#xb-safety-modal .xb-safety-url {
    margin: 0;
    font-size: 12px;
    color: var(--xb-text-muted);
    word-break: break-all;
}

#xb-safety-modal .xb-safety-actions-ui {
    margin-top: 18px;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 10px;
}

.xb-wallpaper-modal .xb-modal-content::before {
    display: none;
}

.xb-wallpaper-modal-content {
    width: min(1120px, calc(100vw - 28px));
    max-width: none;
    max-height: calc(100vh - 28px);
    padding: 18px;
    overflow: hidden;
}

.xb-wallpaper-header {
    padding: 4px 6px 14px;
    border-bottom: 1px solid var(--xb-gray-200);
    display: grid;
    gap: 12px;
}

.xb-wallpaper-header-main {
    padding-right: 44px;
}

.xb-wallpaper-header h3 {
    margin: 0;
    font-size: 22px;
    color: var(--xb-text-dark);
}

.xb-wallpaper-header p {
    margin: 6px 0 0;
    color: var(--xb-text-muted);
    font-size: 13px;
}

.xb-wallpaper-visual-bar {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr)) auto;
    gap: 12px;
    align-items: end;
}

.xb-wallpaper-visual-item {
    display: grid;
    gap: 8px;
}

.xb-wallpaper-visual-item label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--xb-text-body);
    font-size: 13px;
    margin: 0;
}

.xb-wallpaper-visual-item input[type="range"] {
    width: 100%;
    accent-color: var(--xb-primary);
}

.xb-wallpaper-visual-actions {
    display: flex;
    align-items: end;
}

.xb-wallpaper-body {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 14px;
    margin-top: 14px;
    max-height: calc(100vh - 150px);
}

.xb-wallpaper-sidebar {
    border: 1px solid var(--xb-gray-200);
    border-radius: var(--xb-radius-lg);
    background: linear-gradient(180deg, var(--xb-gray-50), var(--xb-bg-card));
    padding: 12px;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.xb-wallpaper-section-title {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--xb-text-muted);
    text-transform: uppercase;
}

.xb-wallpaper-categories {
    display: grid;
    gap: 8px;
    max-height: none;
    overflow: visible;
    padding-right: 2px;
}

.xb-wallpaper-category-btn {
    border: 1px solid var(--xb-gray-300);
    border-radius: 10px;
    background: var(--xb-bg-card);
    color: var(--xb-text-body);
    font-size: 13px;
    text-align: left;
    padding: 8px 10px;
    cursor: pointer;
    transition: var(--xb-transition-fast);
}

.xb-wallpaper-category-btn:hover {
    border-color: var(--xb-primary);
    color: var(--xb-primary);
}

.xb-wallpaper-category-btn.active {
    border-color: var(--xb-primary);
    background: var(--xb-primary);
    color: #ffffff;
}

.xb-wallpaper-reset-btn {
    margin-top: 0;
    border: 1px solid var(--xb-gray-300);
    background: var(--xb-gray-100);
    color: var(--xb-text-body);
    border-radius: 10px;
    height: 38px;
    min-width: 98px;
    padding: 0 14px;
    cursor: pointer;
    transition: var(--xb-transition-fast);
}

.xb-wallpaper-reset-btn:hover {
    border-color: var(--xb-primary);
    color: var(--xb-primary);
    background: var(--xb-primary-50);
}

.xb-wallpaper-main {
    border: 1px solid var(--xb-gray-200);
    border-radius: var(--xb-radius-lg);
    background: var(--xb-bg-card);
    padding: 12px;
    overflow-y: auto;
}

.xb-wallpaper-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 10px;
}

.xb-wallpaper-card {
    border: 1px solid var(--xb-gray-200);
    border-radius: 12px;
    padding: 0;
    overflow: hidden;
    background: var(--xb-bg-card);
    cursor: pointer;
    transition: var(--xb-transition-fast);
    text-align: left;
}

.xb-wallpaper-card:hover {
    transform: translateY(-2px);
    border-color: var(--xb-primary);
    box-shadow: var(--xb-shadow-md);
}

.xb-wallpaper-card.active {
    border-color: var(--xb-primary);
    box-shadow: 0 0 0 3px var(--xb-primary-50);
}

.xb-wallpaper-card img {
    display: block;
    width: 100%;
    height: 108px;
    object-fit: cover;
}

.xb-wallpaper-card-name {
    display: block;
    padding: 8px 10px;
    color: var(--xb-text-body);
    font-size: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.xb-wallpaper-empty {
    color: var(--xb-text-muted);
    font-size: 13px;
    padding: 10px;
}

/* 模态框标题 */
#xb-user-modal-title {
    font-size: 20px !important;
    font-weight: 700 !important;
    color: var(--xb-text-dark) !important;
    -webkit-text-fill-color: var(--xb-text-dark) !important;
    margin-top: 8px !important;
    margin-bottom: var(--xb-spacing-lg) !important;
    text-align: center;
    position: relative;
}

/* 表单样式 */
.xb-form-group {
    margin-bottom: var(--xb-spacing-md) !important;
}

.xb-form-group label {
    display: block !important;
    margin-bottom: 6px !important;
    font-weight: 500 !important;
    font-size: 14px !important;
    color: var(--xb-text-dark) !important;
}

.xb-form-group input {
    width: 100% !important;
    padding: 12px 14px !important;
    border: 1px solid var(--xb-gray-300) !important;
    border-radius: var(--xb-radius-md) !important;
    font-size: 15px !important;
    background: var(--xb-bg-card) !important;
    box-sizing: border-box !important;
    transition: var(--xb-transition) !important;
    color: var(--xb-text-dark) !important;
}

.xb-form-group input:focus {
    border-color: var(--xb-primary) !important;
    background: var(--xb-bg-card) !important;
    outline: none !important;
    box-shadow: var(--xb-shadow-focus) !important;
}

.xb-form-group input::placeholder {
    color: var(--xb-text-light) !important;
}

/* 必填标记 */
.xb-form-group label span[style*="color:red"],
.xb-form-group label span[style*="color: red"] {
    color: var(--xb-danger) !important;
    font-weight: bold;
}

/* 保存按钮样式 */
#xb-user-link-form .xb-apply-btn {
    width: 100% !important;
    padding: 14px 20px !important;
    font-size: 16px !important;
    font-weight: 600 !important;
    border: none !important;
    border-radius: var(--xb-radius-md) !important;
    background: var(--xb-primary) !important;
    color: #fff !important;
    cursor: pointer !important;
    transition: var(--xb-transition) !important;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3) !important;
    position: relative;
    overflow: hidden;
}

#xb-user-link-form .xb-apply-btn:hover {
    background: var(--xb-primary-dark) !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4) !important;
}

#xb-user-link-form .xb-apply-btn:active {
    transform: translateY(0) !important;
}

/* 添加按钮样式已在下方统一定义 */

/* 移动端适配 - 模态框 */
@media (max-width: 768px) {
    .xb-modal-content {
        width: 95% !important;
        padding: var(--xb-spacing-lg) !important;
        max-width: none !important;
    }

    #xb-user-modal-title {
        font-size: 18px !important;
    }

    .xb-form-group input {
        padding: 10px 12px !important;
        font-size: 14px !important;
    }

    #xb-user-link-form .xb-apply-btn {
        padding: 12px 16px !important;
        font-size: 15px !important;
    }
}

/* ========================================
   用户自定义导航板块 - 完整样式
   ======================================== */

/* 用户板块特殊样式 */
.xb-user-section {
    border: 1px solid var(--xb-gray-200);
    background: var(--xb-bg-card);
    background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(247, 251, 255, 0.96));
}

.xb-user-section .xb-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* 添加导航按钮 - 美化版 */
.xb-add-user-link-btn {
    display: inline-flex !important;
    align-items: center !important;
    gap: 6px !important;
    padding: 8px 16px !important;
    background: linear-gradient(135deg, var(--xb-primary) 0%, var(--xb-primary-dark) 100%) !important;
    color: #ffffff !important;
    border: none !important;
    border-radius: var(--xb-radius-md) !important;
    font-size: 13px !important;
    font-weight: 500 !important;
    cursor: pointer !important;
    transition: var(--xb-transition) !important;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3) !important;
}

.xb-user-section .xb-title .xb-add-user-link-btn {
    display: none !important;
}

.xb-user-section:hover .xb-title .xb-add-user-link-btn,
.xb-user-section:focus-within .xb-title .xb-add-user-link-btn {
    display: inline-flex !important;
}

.xb-add-user-link-btn:hover {
    background: linear-gradient(135deg, var(--xb-primary-dark) 0%, #1e40af 100%) !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.4) !important;
}

.xb-add-user-link-btn .xb-btn-icon {
    width: 16px !important;
    height: 16px !important;
    stroke: #ffffff !important;
    flex-shrink: 0;
}

/* 添加按钮图标已在上方定义 */

/* 用户导航项 - 需要特殊处理操作按钮 */
.xb-user-link-item {
    position: relative !important;
}

/* 编辑/删除操作按钮容器 - 悬停时显示 */
.xb-user-link-actions {
    position: absolute !important;
    top: 8px !important;
    right: 8px !important;
    display: flex !important;
    gap: 6px !important;
    opacity: 0 !important;
    visibility: hidden !important;
    transition: all 0.2s ease !important;
    z-index: 100 !important;
}

.xb-user-link-item:hover .xb-user-link-actions {
    opacity: 1 !important;
    visibility: visible !important;
}

/* 编辑按钮 */
.xb-edit-user-link {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 26px !important;
    height: 26px !important;
    background-color: #2563eb !important;
    border: none !important;
    border-radius: 6px !important;
    cursor: pointer !important;
    transition: all 0.2s ease !important;
    padding: 0 !important;
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.4) !important;
}

.xb-edit-user-link:hover {
    background-color: #1d4ed8 !important;
    transform: scale(1.1) !important;
}

.xb-edit-user-link .xb-btn-icon {
    width: 14px !important;
    height: 14px !important;
    stroke: #ffffff !important;
    stroke-width: 2 !important;
}

/* 删除按钮 */
.xb-delete-user-link {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 26px !important;
    height: 26px !important;
    background-color: #ef4444 !important;
    border: none !important;
    border-radius: 6px !important;
    cursor: pointer !important;
    transition: all 0.2s ease !important;
    padding: 0 !important;
    box-shadow: 0 2px 6px rgba(239, 68, 68, 0.4) !important;
}

.xb-delete-user-link:hover {
    background-color: #dc2626 !important;
    transform: scale(1.1) !important;
}

.xb-delete-user-link .xb-btn-icon {
    width: 14px !important;
    height: 14px !important;
    stroke: #ffffff !important;
    stroke-width: 2 !important;
}

/* 登录引导区域 */
.xb-user-login-guide {
    text-align: center;
    padding: var(--xb-spacing-xl) var(--xb-spacing-lg) !important;
    background: linear-gradient(135deg, var(--xb-gray-50) 0%, var(--xb-bg-card) 100%);
    border-radius: var(--xb-radius-lg);
    border: 1px dashed var(--xb-gray-300);
}

.xb-user-login-guide p {
    color: var(--xb-text-muted) !important;
    margin-bottom: var(--xb-spacing-md) !important;
    font-size: 14px !important;
    line-height: 1.6 !important;
}

.xb-user-login-guide .xb-apply-btn {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    min-width: 120px !important;
}

/* 无收藏提示 */
.xb-no-links-tip {
    color: var(--xb-text-light) !important;
    font-size: 14px !important;
    padding: var(--xb-spacing-lg) !important;
    text-align: center !important;
    background: var(--xb-gray-50);
    border-radius: var(--xb-radius-md);
    border: 1px dashed var(--xb-gray-300);
    margin: 0 !important;
}

/* 用户导航项无图标时的首字母头像 */
.xb-user-link-item .xb-nav-icon[style*="background"] {
    background: linear-gradient(135deg, var(--xb-primary-light), var(--xb-primary)) !important;
    color: #ffffff !important;
    font-weight: 600 !important;
    font-size: 16px !important;
}

/* 暗色模式下的用户板块 */
html.dark-mode .xb-user-section {
    border-color: var(--xb-gray-300);
    background: var(--xb-bg-card);
    background-image: none;
}

html.dark-mode .xb-user-login-guide {
    background: linear-gradient(135deg, var(--xb-gray-200) 0%, var(--xb-bg-card) 100%);
    border-color: var(--xb-gray-300);
}

html.dark-mode .xb-no-links-tip {
    background: var(--xb-gray-200);
    border-color: var(--xb-gray-300);
}

/* 移动端适配 - 用户导航 */
@media (max-width: 768px) {
    .xb-add-user-link-btn {
        padding: 6px 12px !important;
        font-size: 12px !important;
    }

    .xb-user-section .xb-title .xb-add-user-link-btn {
        display: inline-flex !important;
    }

    .xb-user-link-actions {
        opacity: 1;
        position: static;
        transform: none;
        margin-top: 8px;
        justify-content: flex-end;
    }

    .xb-edit-user-link,
    .xb-delete-user-link {
        width: 26px;
        height: 26px;
    }

    .xb-edit-user-link .xb-btn-icon,
    .xb-delete-user-link .xb-btn-icon {
        width: 12px;
        height: 12px;
    }

    .xb-user-link-item {
        flex-wrap: wrap;
    }

    .xb-user-login-guide {
        padding: var(--xb-spacing-lg) var(--xb-spacing-md) !important;
    }
}

/* ========================================
   v2.0 新功能样式
   ======================================== */

/* 标签筛选栏 */
.xb-tag-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin: 0 auto var(--xb-spacing-lg);
    max-width: var(--xb-shell-max-width);
    padding: var(--xb-spacing-md);
    background: var(--xb-bg-card);
    border-radius: var(--xb-radius-xl);
    border: 1px solid var(--xb-gray-200);
    width: calc(100% - 32px);
}

.xb-tag-btn {
    padding: 6px 14px;
    border: 2px solid transparent;
    background: var(--xb-gray-100);
    border-radius: var(--xb-radius-full);
    color: var(--xb-text-body);
    cursor: pointer;
    transition: var(--xb-transition);
    font-weight: 500;
    font-size: 13px;
}

.xb-tag-btn:hover {
    background: var(--xb-gray-200);
    border-color: var(--tag-color, var(--xb-primary));
}

.xb-tag-btn.active {
    background: var(--tag-color, var(--xb-primary));
    color: #ffffff;
    border-color: var(--tag-color, var(--xb-primary));
}

/* 即时过滤输入框 */
.xb-instant-filter {
    margin-top: var(--xb-spacing-md);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

#xb-filter-input {
    width: 100%;
    padding: 10px 16px;
    border: 2px solid var(--xb-gray-200);
    border-radius: var(--xb-radius-lg);
    font-size: 14px;
    background: var(--xb-bg-card);
    color: var(--xb-text-dark);
    transition: var(--xb-transition);
}

#xb-filter-input:focus {
    border-color: var(--xb-primary);
    outline: none;
    box-shadow: var(--xb-shadow-focus);
}

#xb-filter-input::placeholder {
    color: var(--xb-text-light);
}

/* 标签徽章 */
.xb-tag-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: var(--xb-radius-full);
    font-size: 11px;
    font-weight: 500;
    color: #ffffff;
    margin-right: 4px;
    margin-top: 4px;
}

.xb-nav-tags {
    display: flex;
    flex-wrap: wrap;
    margin-top: 4px;
}

/* 网站状态指示器 */
.xb-status-fail {
    position: relative;
    opacity: 0.7;
}

.xb-status-fail::after {
    content: '⚠';
    position: absolute;
    top: 8px;
    right: 8px;
    font-size: 14px;
    color: var(--xb-danger);
}

/* 后台状态标签 */
.xb-status {
    display: inline-block;
    padding: 2px 8px;
    border-radius: var(--xb-radius-sm);
    font-size: 12px;
    font-weight: 500;
}

.xb-status.status-ok {
    background: #d1fae5;
    color: #059669;
}

.xb-status.status-fail {
    background: #fee2e2;
    color: #dc2626;
}

.xb-status.status-unknown {
    background: var(--xb-gray-100);
    color: var(--xb-text-muted);
}

/* 分类滚动高亮 */
.xb-nav-section.xb-highlight {
    animation: xb-highlight-pulse 1.5s ease;
}

@keyframes xb-highlight-pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4);
    }

    50% {
        box-shadow: 0 0 0 10px rgba(37, 99, 235, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(37, 99, 235, 0);
    }
}

/* 分类项激活状态 */
.xb-category-item.active {
    background: var(--xb-primary-50);
    color: var(--xb-primary);
    font-weight: 600;
}

/* 无结果提示 */
.xb-no-results {
    text-align: center;
    padding: var(--xb-spacing-xl);
    color: var(--xb-text-muted);
    background: var(--xb-bg-card);
    border-radius: var(--xb-radius-xl);
    border: 1px dashed var(--xb-gray-300);
}

.xb-no-results p {
    margin: 0;
    font-size: 14px;
}

/* 热榜加载状态 */
.xb-hotlist-loading {
    text-align: center;
    padding: var(--xb-spacing-lg);
    color: var(--xb-text-muted);
    font-size: 14px;
}

/* 导航项文字图标 */
.xb-nav-icon-text {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--xb-primary-light), var(--xb-primary));
    color: #ffffff;
    font-weight: 600;
    font-size: 18px;
    width: 40px;
    height: 40px;
    border-radius: var(--xb-radius-md);
    margin-right: 12px;
    flex-shrink: 0;
}

/* 提示框显示状态 */
.xb-toast.show {
    display: block;
}

/* 手机端适配 - 新功能 */
@media (max-width: 768px) {
    .xb-tag-filter {
        gap: 6px;
        padding: var(--xb-spacing-sm);
    }

    .xb-tag-btn {
        padding: 4px 10px;
        font-size: 12px;
    }

    .xb-instant-filter {
        margin-top: var(--xb-spacing-sm);
    }

    #xb-filter-input {
        padding: 8px 12px;
        font-size: 13px;
    }

    .xb-tag-badge {
        font-size: 10px;
        padding: 1px 6px;
    }
}

/* ========================================
   暗黑模式完整适配（启灵主题）
   ======================================== */

/* 描述浮层 - 暗黑模式下使用深色背景 */
html.dark-mode .xb-nav-desc-full {
    background: #0f172a;
    color: #e2e8f0;
    border: 1px solid #334155;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

html.dark-mode .xb-nav-desc-full::before {
    background: #0f172a;
    border-left: 1px solid #334155;
    border-top: 1px solid #334155;
}

/* 导航卡片悬停效果 */
html.dark-mode .xb-nav-item:hover {
    border-color: var(--xb-primary);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4);
}

/* 搜索框区域 */
html.dark-mode .xb-nav-search {
    background: var(--xb-bg-card);
    border-color: var(--xb-gray-200);
}

html.dark-mode .xb-search-input-wrapper {
    background: var(--xb-gray-50);
    border-color: var(--xb-gray-200);
}

html.dark-mode #xb-search-input::placeholder {
    color: #64748b;
}

/* 搜索选项卡 */
html.dark-mode .xb-search-tab {
    background: var(--xb-gray-200);
    color: var(--xb-text-body);
}

html.dark-mode .xb-search-tab:hover {
    background: var(--xb-gray-300);
}

html.dark-mode .xb-search-tab.active {
    background: var(--xb-primary);
    color: #ffffff;
}

/* 分类侧边栏 */
html.dark-mode .xb-nav-sidebar {
    background: var(--xb-bg-card);
    border-color: var(--xb-gray-200);
}

html.dark-mode .xb-category-item:hover {
    background: var(--xb-gray-200);
}

html.dark-mode .xb-category-item.active {
    background: rgba(37, 99, 235, 0.2);
}

/* 导航板块 */
html.dark-mode .xb-nav-section {
    background: var(--xb-bg-card);
    border-color: var(--xb-gray-200);
}

/* 单个导航项 */
html.dark-mode .xb-nav-item {
    background: var(--xb-bg-card);
    border-color: var(--xb-gray-200);
}

/* 小工具区域 */
html.dark-mode .xb-widget {
    background: var(--xb-bg-card);
    border-color: var(--xb-gray-200);
}

/* 标签筛选栏 */
html.dark-mode .xb-tag-filter {
    background: var(--xb-bg-card);
    border-color: var(--xb-gray-200);
}

html.dark-mode .xb-tag-btn {
    background: var(--xb-gray-200);
    color: var(--xb-text-body);
}

html.dark-mode .xb-tag-btn:hover {
    background: var(--xb-gray-300);
}

/* 提示框 */
html.dark-mode .xb-toast {
    background: #0f172a;
    color: #e2e8f0;
    border: 1px solid #334155;
}

/* 模态框 */
html.dark-mode .xb-modal-content {
    background: var(--xb-bg-card);
    border: 1px solid var(--xb-gray-200);
}

html.dark-mode .xb-modal-content h3 {
    color: var(--xb-text-dark);
}

html.dark-mode .xb-modal-content label {
    color: var(--xb-text-body);
}

html.dark-mode .xb-modal-content input[type="text"],
html.dark-mode .xb-modal-content input[type="url"] {
    background: var(--xb-gray-50);
    border-color: var(--xb-gray-200);
    color: var(--xb-text-dark);
}

html.dark-mode .xb-modal-content input::placeholder {
    color: #64748b;
}

html.dark-mode .xb-wallpaper-sidebar,
html.dark-mode .xb-wallpaper-main {
    background: rgba(15, 23, 42, 0.92);
    border-color: var(--xb-gray-200);
}

html.dark-mode .xb-wallpaper-header {
    border-color: var(--xb-gray-200);
}

html.dark-mode .xb-wallpaper-category-btn {
    background: rgba(30, 41, 59, 0.9);
    border-color: var(--xb-gray-300);
    color: var(--xb-text-body);
}

html.dark-mode .xb-wallpaper-category-btn.active {
    color: #ffffff;
}

html.dark-mode .xb-wallpaper-reset-btn {
    background: rgba(30, 41, 59, 0.9);
    border-color: var(--xb-gray-300);
}

html.dark-mode .xb-wallpaper-card {
    background: rgba(30, 41, 59, 0.92);
    border-color: var(--xb-gray-300);
}

html.dark-mode #xb-safety-modal .xb-safety-cancel {
    border-color: var(--xb-gray-300) !important;
    background: var(--xb-gray-200) !important;
    color: var(--xb-text-body) !important;
}

html.dark-mode #xb-safety-modal .xb-safety-cancel:hover {
    background: var(--xb-gray-300) !important;
    color: var(--xb-text-dark) !important;
}

html.dark-mode #xb-safety-modal .xb-safety-text-ui {
    color: var(--xb-text-body);
}

html.dark-mode #xb-safety-modal .xb-safety-name {
    color: var(--xb-text-dark);
}

html.dark-mode #xb-safety-modal .xb-safety-url {
    color: var(--xb-text-muted);
}

/* 手机端菜单 */
html.dark-mode .xb-mobile-menu-content {
    background: var(--xb-bg-card);
}

html.dark-mode .xb-mobile-menu-header {
    border-color: var(--xb-gray-200);
}

html.dark-mode .menu-close {
    background: var(--xb-gray-200);
    color: var(--xb-text-muted);
}

/* 热榜标签 */
html.dark-mode .xb-hotlist-tab {
    background: var(--xb-gray-200);
    color: var(--xb-text-body);
}

html.dark-mode .xb-hotlist-tab:hover {
    background: var(--xb-gray-300);
}

html.dark-mode .xb-hotlist-tab.active {
    background: var(--xb-primary);
    color: #ffffff;
}

/* 热榜列表项 */
html.dark-mode .xb-hotlist-item {
    border-color: var(--xb-gray-200);
}

html.dark-mode .xb-hotlist-link {
    color: var(--xb-text-body);
}

html.dark-mode .xb-hotlist-link:hover {
    color: var(--xb-primary);
}

/* 文章列表 */
html.dark-mode .xb-post-item {
    color: var(--xb-text-body);
}

html.dark-mode .xb-post-item:hover {
    background: var(--xb-gray-200);
    color: var(--xb-primary);
}

html.dark-mode .xb-post-item::before {
    background: var(--xb-gray-200);
    color: var(--xb-text-muted);
}

/* 主题切换器下拉 */
html.dark-mode .xb-theme-dropdown {
    background: var(--xb-bg-card);
    border-color: var(--xb-gray-200);
}

html.dark-mode .xb-theme-option:hover {
    background: var(--xb-gray-200);
}

/* 二维码弹出层 */
html.dark-mode .xb-qr-popup {
    background: var(--xb-bg-card);
    border: 1px solid var(--xb-gray-200);
}

/* ========================================
   v2.1 个性化与视觉增强
   ======================================== */

.xb-personal-panel {
    max-width: var(--xb-shell-max-width);
    width: calc(100% - 32px);
    margin: 0 auto var(--xb-spacing-lg);
    padding: 12px 16px;
    border-radius: var(--xb-radius-xl);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(16, 185, 129, 0.08));
    border: 1px solid rgba(37, 99, 235, 0.18);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 14px;
    position: relative;
    z-index: 900;
    overflow: visible;
}

.xb-personal-group {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding-right: 6px;
}

.xb-personal-group-visual {
    margin-left: auto;
    padding-right: 0;
    gap: 8px;
    position: relative;
    z-index: 920;
}

.xb-personal-group-visual .xb-theme-btn,
.xb-personal-group-visual .xb-wallpaper-btn {
    width: 34px;
    height: 34px;
    font-size: 16px;
    border-radius: 10px;
}

.xb-personal-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--xb-text-muted);
}

.xb-density-btn,
.xb-card-style-btn,
.xb-layout-style-btn {
    border: 1px solid var(--xb-gray-300);
    background: var(--xb-bg-card);
    color: var(--xb-text-body);
    border-radius: 999px;
    padding: 5px 12px;
    font-size: 12px;
    cursor: pointer;
    transition: var(--xb-transition-fast);
}

.xb-density-btn:hover,
.xb-card-style-btn:hover,
.xb-layout-style-btn:hover {
    border-color: var(--xb-primary);
    color: var(--xb-primary);
}

.xb-density-btn.active,
.xb-card-style-btn.active,
.xb-layout-style-btn.active {
    border-color: var(--xb-primary);
    background: var(--xb-primary);
    color: #ffffff;
}

.xb-personal-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--xb-text-body);
    font-size: 13px;
}

.xb-switch-toggle {
    position: relative;
    cursor: pointer;
    user-select: none;
}

.xb-switch-toggle input[type="checkbox"] {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.xb-switch-ui {
    width: 40px;
    height: 22px;
    border-radius: 999px;
    background: var(--xb-gray-300);
    border: 1px solid transparent;
    position: relative;
    transition: var(--xb-transition-fast);
    flex-shrink: 0;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.12);
}

.xb-switch-ui::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.18);
    transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.xb-switch-label {
    color: inherit;
}

.xb-switch-toggle input[type="checkbox"]:checked + .xb-switch-ui {
    background: var(--xb-primary);
    border-color: var(--xb-primary-dark);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.15), 0 0 0 3px var(--xb-primary-50);
}

.xb-switch-toggle input[type="checkbox"]:checked + .xb-switch-ui::after {
    transform: translateX(18px);
}

.xb-switch-toggle input[type="checkbox"]:focus-visible + .xb-switch-ui {
    box-shadow: 0 0 0 3px var(--xb-primary-50);
}

.xb-tag-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: var(--xb-gray-100);
    border-radius: 999px;
    padding: 2px;
}

.xb-tag-chip .xb-tag-btn {
    margin: 0;
}

.xb-tag-fav-btn {
    width: 28px;
    height: 28px;
    border: none;
    border-radius: 50%;
    background: transparent;
    color: var(--xb-text-light);
    cursor: pointer;
    font-size: 14px;
    transition: var(--xb-transition-fast);
}

.xb-tag-fav-btn:hover {
    color: var(--tag-color, var(--xb-primary));
    background: rgba(255, 255, 255, 0.65);
}

.xb-tag-fav-btn.active {
    color: var(--tag-color, var(--xb-primary));
    background: rgba(255, 255, 255, 0.85);
}

.xb-tag-favorites {
    max-width: var(--xb-shell-max-width);
    width: calc(100% - 32px);
    margin: -8px auto 14px;
    padding: 12px 16px;
    border-radius: var(--xb-radius-xl);
    background: var(--xb-bg-card);
    border: 1px solid var(--xb-gray-200);
}

.xb-tag-favorites-title {
    font-size: 13px;
    color: var(--xb-text-muted);
    font-weight: 600;
    margin-bottom: 8px;
}

.xb-tag-favorites-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.xb-tag-favorite-shortcut {
    border: 1px solid var(--xb-gray-300);
    background: var(--xb-gray-50);
    color: var(--xb-text-body);
    border-radius: 999px;
    padding: 5px 12px;
    font-size: 12px;
    cursor: pointer;
}

.xb-tag-favorite-shortcut:hover {
    border-color: var(--xb-primary);
    color: var(--xb-primary);
}

.xb-nav-card-wrap {
    position: relative;
}

.xb-fav-nav-btn {
    position: absolute;
    top: 7px;
    right: 8px;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 1px solid rgba(148, 163, 184, 0.35);
    cursor: pointer;
    background: rgba(255, 255, 255, 0.95);
    color: #64748b;
    font-size: 15px;
    line-height: 1;
    opacity: 0;
    transform: translateY(2px);
    transition: var(--xb-transition-fast);
    z-index: 24;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.xb-nav-card-wrap:hover .xb-fav-nav-btn,
.xb-nav-card-wrap.is-favorited .xb-fav-nav-btn {
    opacity: 1;
    transform: translateY(0);
}

.xb-fav-nav-btn.active {
    color: #f59e0b;
    border-color: rgba(245, 158, 11, 0.6);
    background: rgba(255, 251, 235, 0.96);
}

.xb-nav-item[data-favorited="1"] {
    border-color: rgba(245, 158, 11, 0.35);
    box-shadow: 0 8px 20px rgba(245, 158, 11, 0.14);
}

.xb-nav-container.xb-only-favorites .xb-nav-section:not(.xb-user-section) .xb-nav-item[data-favorited="0"] {
    display: none !important;
}

.xb-nav-container.xb-hide-failed .xb-nav-item.xb-status-fail {
    display: none !important;
}

.xb-nav-container.xb-hide-search .xb-nav-search {
    display: none !important;
}

.xb-nav-container.xb-hide-clock-widget .xb-clock-widget {
    display: none !important;
}

.xb-nav-container[data-layout-style="desktop"].xb-hide-clock-widget .xb-desktop-hero {
    display: none !important;
}

.xb-nav-container.xb-hide-lytoday .xb-lytoday-container {
    display: none !important;
}

.xb-nav-container[data-density="compact"] .xb-nav-items {
    gap: 10px;
}

.xb-nav-container[data-density="compact"] .xb-nav-section {
    padding: 14px;
}

.xb-nav-container[data-density="compact"] .xb-nav-item {
    min-height: 56px;
    padding: 9px 12px;
}

.xb-nav-container[data-density="compact"] .xb-nav-icon {
    width: 34px;
    height: 34px;
    margin-right: 10px;
}

.xb-nav-container[data-card-style="glass"] .xb-nav-item,
.xb-nav-container[data-card-style="glass"] .xb-widget,
.xb-nav-container[data-card-style="glass"] .xb-nav-section {
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.xb-nav-container[data-card-style="outline"] .xb-nav-item,
.xb-nav-container[data-card-style="outline"] .xb-widget,
.xb-nav-container[data-card-style="outline"] .xb-nav-section {
    box-shadow: none;
    border-width: 2px;
}

/* 桌面布局不参与密度/卡片风格，避免和经典布局互相污染 */
.xb-nav-container[data-layout-style="desktop"][data-density="compact"] .xb-nav-items {
    gap: 20px 12px;
}

.xb-nav-container[data-layout-style="desktop"][data-density="compact"] .xb-nav-section {
    padding: 0;
}

.xb-nav-container[data-layout-style="desktop"][data-density="compact"] .xb-nav-item {
    min-height: 128px;
    padding: 7px 4px;
}

.xb-nav-container[data-layout-style="desktop"][data-density="compact"] .xb-nav-icon {
    width: 68px;
    height: 68px;
    margin-right: 0;
}

.xb-nav-container[data-layout-style="desktop"][data-card-style="glass"] .xb-nav-item,
.xb-nav-container[data-layout-style="desktop"][data-card-style="glass"] .xb-widget,
.xb-nav-container[data-layout-style="desktop"][data-card-style="glass"] .xb-nav-section,
.xb-nav-container[data-layout-style="desktop"][data-card-style="outline"] .xb-nav-item,
.xb-nav-container[data-layout-style="desktop"][data-card-style="outline"] .xb-widget,
.xb-nav-container[data-layout-style="desktop"][data-card-style="outline"] .xb-nav-section {
    background: unset;
    border-width: initial;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

/* 布局风格：杂志 */
.xb-nav-container[data-layout-style="magazine"] .xb-nav-main {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: var(--xb-spacing-lg);
}

.xb-nav-container[data-layout-style="magazine"] .xb-nav-sidebar {
    display: none;
}

.xb-nav-container[data-layout-style="magazine"] .xb-nav-content {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--xb-spacing-lg);
}

.xb-nav-container[data-layout-style="magazine"] .xb-nav-section {
    margin-bottom: 0;
}

.xb-nav-container[data-layout-style="magazine"] .xb-user-section,
.xb-nav-container[data-layout-style="magazine"] .xb-recommended-section {
    grid-column: 1 / -1;
}

.xb-nav-container[data-layout-style="magazine"] .xb-nav-items {
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
    gap: 12px;
}

.xb-nav-container[data-layout-style="magazine"] .xb-nav-widgets {
    position: sticky;
    top: 100px;
    align-self: start;
}

/* 布局风格：沉浸 */
.xb-nav-container[data-layout-style="immersive"] .xb-nav-sidebar,
.xb-nav-container[data-layout-style="immersive"] .xb-nav-widgets {
    display: none;
}

.xb-nav-container[data-layout-style="immersive"] .xb-nav-main {
    max-width: var(--xb-shell-max-width);
    padding-left: var(--xb-spacing-md);
    padding-right: var(--xb-spacing-md);
}

.xb-nav-container[data-layout-style="immersive"] .xb-nav-items {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 18px;
}

.xb-nav-container[data-layout-style="immersive"] .xb-nav-section {
    padding: 20px 22px;
}

.xb-nav-container[data-layout-style="immersive"] .xb-nav-content {
    width: 100%;
}

/* 布局风格：系统桌面 */
.xb-nav-container[data-layout-style="desktop"] {
    --xb-bg-page: #0b1d30;
    --xb-primary: #2563eb;
    --xb-primary-dark: #1d4ed8;
    --xb-primary-light: #60a5fa;
    --xb-primary-50: rgba(37, 99, 235, 0.16);
    --xb-accent: #10b981;
    --xb-desktop-panel-bg: rgba(9, 28, 44, 0.36);
    --xb-desktop-panel-soft: rgba(9, 30, 47, 0.44);
    --xb-desktop-panel-strong: rgba(8, 26, 42, 0.48);
    --xb-desktop-panel-border: rgba(210, 236, 255, 0.36);
    --xb-desktop-chip-bg: rgba(223, 242, 255, 0.16);
    --xb-desktop-chip-border: rgba(216, 238, 255, 0.2);
    --xb-desktop-chip-text: rgba(239, 249, 255, 0.98);
    background: var(--xb-bg-page);
    padding-bottom: 140px;
}

.xb-nav-container[data-layout-style="desktop"][data-desktop-theme="fresh"] {
    --xb-primary: #10b981;
    --xb-primary-dark: #059669;
    --xb-primary-light: #34d399;
    --xb-primary-50: rgba(16, 185, 129, 0.18);
    --xb-accent: #06b6d4;
    --xb-desktop-panel-bg: rgba(4, 52, 45, 0.4);
    --xb-desktop-panel-soft: rgba(5, 58, 50, 0.48);
    --xb-desktop-panel-strong: rgba(4, 46, 39, 0.52);
}

.xb-nav-container[data-layout-style="desktop"][data-desktop-theme="ocean"] {
    --xb-primary: #0891b2;
    --xb-primary-dark: #0e7490;
    --xb-primary-light: #22d3ee;
    --xb-primary-50: rgba(8, 145, 178, 0.18);
    --xb-accent: #0ea5e9;
    --xb-desktop-panel-bg: rgba(8, 50, 68, 0.4);
    --xb-desktop-panel-soft: rgba(8, 56, 76, 0.5);
    --xb-desktop-panel-strong: rgba(6, 42, 58, 0.54);
}

.xb-nav-container[data-layout-style="desktop"][data-desktop-theme="dark"] {
    --xb-primary: #818cf8;
    --xb-primary-dark: #6366f1;
    --xb-primary-light: #a5b4fc;
    --xb-primary-50: rgba(129, 140, 248, 0.2);
    --xb-accent: #22d3ee;
    --xb-desktop-panel-bg: rgba(14, 20, 42, 0.46);
    --xb-desktop-panel-soft: rgba(16, 24, 50, 0.56);
    --xb-desktop-panel-strong: rgba(10, 16, 36, 0.6);
}

.xb-nav-container[data-layout-style="desktop"][data-desktop-theme="pastel"] {
    --xb-primary: #ec4899;
    --xb-primary-dark: #db2777;
    --xb-primary-light: #f472b6;
    --xb-primary-50: rgba(236, 72, 153, 0.2);
    --xb-accent: #a855f7;
    --xb-desktop-panel-bg: rgba(70, 32, 68, 0.38);
    --xb-desktop-panel-soft: rgba(78, 36, 74, 0.48);
    --xb-desktop-panel-strong: rgba(62, 26, 58, 0.52);
}

.xb-nav-container[data-layout-style="desktop"][data-desktop-theme="tech"] {
    --xb-primary: #8b5cf6;
    --xb-primary-dark: #7c3aed;
    --xb-primary-light: #a78bfa;
    --xb-primary-50: rgba(139, 92, 246, 0.2);
    --xb-accent: #22d3ee;
    --xb-desktop-panel-bg: rgba(40, 34, 82, 0.4);
    --xb-desktop-panel-soft: rgba(46, 38, 92, 0.5);
    --xb-desktop-panel-strong: rgba(34, 28, 74, 0.54);
}

.xb-nav-container[data-layout-style="desktop"][data-desktop-theme="sunset"] {
    --xb-primary: #f97316;
    --xb-primary-dark: #ea580c;
    --xb-primary-light: #fb923c;
    --xb-primary-50: rgba(249, 115, 22, 0.2);
    --xb-accent: #f59e0b;
    --xb-desktop-panel-bg: rgba(74, 42, 18, 0.4);
    --xb-desktop-panel-soft: rgba(82, 48, 20, 0.52);
    --xb-desktop-panel-strong: rgba(64, 36, 14, 0.56);
}

.xb-nav-container[data-layout-style="desktop"]::before {
    background-image:
        var(--xb-desktop-bg-image),
        radial-gradient(920px 420px at 12% 12%, rgba(16, 129, 94, 0.34), rgba(16, 129, 94, 0) 72%),
        radial-gradient(960px 480px at 86% 8%, rgba(32, 133, 191, 0.3), rgba(32, 133, 191, 0) 74%);
    background-size: cover, auto, auto;
    background-position: center center, center, center;
    background-repeat: no-repeat;
    filter: blur(var(--xb-desktop-bg-blur, 0px));
}

.xb-nav-container[data-layout-style="desktop"]::after {
    opacity: 1;
    background:
        linear-gradient(180deg, rgba(6, 16, 28, 0.2) 0%, rgba(7, 18, 30, 0.34) 100%),
        linear-gradient(180deg, rgba(8, 22, 35, var(--xb-desktop-overlay-opacity)) 0%, rgba(8, 22, 35, var(--xb-desktop-overlay-opacity)) 100%);
}

.xb-nav-container[data-layout-style="desktop"] .xb-mobile-menu {
    display: none !important;
}

.xb-nav-container[data-layout-style="desktop"] .xb-desktop-hero {
    display: block;
    width: calc(100% - 32px);
    max-width: var(--xb-shell-max-width);
    margin: 6px auto 16px;
    text-align: center;
    color: #f4fbff;
}

.xb-desktop-clock {
    font-size: clamp(52px, 6.8vw, 88px);
    font-weight: 700;
    letter-spacing: 0.015em;
    line-height: 1;
    text-shadow: 0 10px 36px rgba(1, 9, 18, 0.72);
}

.xb-desktop-date {
    margin-top: 12px;
    font-size: 20px;
    color: rgba(232, 247, 255, 0.92);
    text-shadow: 0 4px 16px rgba(1, 9, 18, 0.6);
}

.xb-nav-container[data-layout-style="desktop"] .xb-nav-search {
    background: var(--xb-desktop-panel-bg);
    border-color: var(--xb-desktop-panel-border);
    backdrop-filter: blur(7px);
    -webkit-backdrop-filter: blur(7px);
    box-shadow: 0 14px 28px rgba(2, 12, 20, 0.32);
    padding: 12px 14px;
    margin-bottom: 12px;
}

.xb-nav-container[data-layout-style="desktop"] .xb-nav-search > * {
    max-width: 960px;
}

.xb-nav-container[data-layout-style="desktop"] .xb-search-tabs {
    margin-bottom: 10px;
}

.xb-nav-container[data-layout-style="desktop"] .xb-search-tab {
    background: var(--xb-desktop-chip-bg);
    border: 1px solid var(--xb-desktop-chip-border);
    color: var(--xb-desktop-chip-text);
    padding: 7px 13px;
    font-size: 13px;
}

.xb-nav-container[data-layout-style="desktop"] .xb-search-tab.active {
    background: var(--xb-primary);
    border-color: var(--xb-primary);
    box-shadow: 0 10px 24px rgba(3, 15, 24, 0.4);
}

.xb-nav-container[data-layout-style="desktop"] .xb-search-input-wrapper {
    background: rgba(246, 252, 255, 0.96);
    border-color: rgba(192, 224, 248, 0.56);
    padding: 4px 6px;
}

.xb-nav-container[data-layout-style="desktop"] #xb-search-btn {
    width: 40px;
    height: 40px;
}

.xb-nav-container[data-layout-style="desktop"] #xb-search-input {
    color: #0f2136;
    font-weight: 500;
    font-size: 15px;
    padding: 10px 12px;
}

.xb-nav-container[data-layout-style="desktop"] #xb-search-input::placeholder {
    color: rgba(53, 74, 95, 0.68);
}

.xb-nav-container[data-layout-style="desktop"] .xb-theme-btn {
    background: rgba(246, 252, 255, 0.96);
    border-color: rgba(192, 224, 248, 0.6);
    width: 40px;
    height: 40px;
}

.xb-nav-container[data-layout-style="desktop"] .xb-wallpaper-switcher {
    display: inline-flex;
}

.xb-nav-container[data-layout-style="desktop"] .xb-wallpaper-btn {
    background: rgba(246, 252, 255, 0.96);
    border-color: rgba(192, 224, 248, 0.6);
    width: 40px;
    height: 40px;
}

.xb-nav-container[data-layout-style="desktop"] .xb-theme-dropdown {
    background: var(--xb-desktop-panel-strong);
    border: 1px solid var(--xb-desktop-panel-border);
    box-shadow: 0 18px 36px rgba(8, 28, 44, 0.35);
    z-index: 9600;
}

.xb-nav-container[data-layout-style="desktop"] .xb-wallpaper-modal .xb-modal-content {
    background: var(--xb-desktop-panel-strong);
    border: 1px solid var(--xb-desktop-panel-border);
}

.xb-nav-container[data-layout-style="desktop"] .xb-wallpaper-header {
    border-color: var(--xb-desktop-panel-border);
}

.xb-nav-container[data-layout-style="desktop"] .xb-wallpaper-header h3,
.xb-nav-container[data-layout-style="desktop"] .xb-wallpaper-header p {
    color: rgba(236, 248, 255, 0.96);
}

.xb-nav-container[data-layout-style="desktop"] .xb-wallpaper-visual-item label {
    color: rgba(236, 248, 255, 0.92);
}

.xb-nav-container[data-layout-style="desktop"] .xb-wallpaper-sidebar,
.xb-nav-container[data-layout-style="desktop"] .xb-wallpaper-main {
    background: var(--xb-desktop-panel-bg);
    border-color: var(--xb-desktop-panel-border);
}

.xb-nav-container[data-layout-style="desktop"] .xb-wallpaper-section-title {
    color: rgba(232, 246, 255, 0.78);
}

.xb-nav-container[data-layout-style="desktop"] .xb-wallpaper-category-btn,
.xb-nav-container[data-layout-style="desktop"] .xb-wallpaper-reset-btn {
    background: var(--xb-desktop-chip-bg);
    border-color: var(--xb-desktop-chip-border);
    color: var(--xb-desktop-chip-text);
}

.xb-nav-container[data-layout-style="desktop"] .xb-wallpaper-category-btn:hover,
.xb-nav-container[data-layout-style="desktop"] .xb-wallpaper-reset-btn:hover {
    color: #ffffff;
    border-color: var(--xb-primary);
}

.xb-nav-container[data-layout-style="desktop"] .xb-wallpaper-card {
    background: rgba(9, 24, 36, 0.55);
    border-color: rgba(193, 225, 246, 0.24);
}

.xb-nav-container[data-layout-style="desktop"] .xb-wallpaper-card-name {
    color: rgba(236, 248, 255, 0.95);
}

.xb-nav-container[data-layout-style="desktop"] .xb-theme-option {
    color: rgba(236, 248, 255, 0.96);
}

.xb-nav-container[data-layout-style="desktop"] .xb-theme-option:hover {
    background: var(--xb-desktop-chip-bg);
}

.xb-nav-container[data-layout-style="desktop"] .xb-theme-option.active {
    background: var(--xb-primary-50);
    box-shadow: inset 0 0 0 1px var(--xb-primary);
    color: #ffffff;
}

.xb-nav-container[data-layout-style="desktop"] .xb-tag-filter,
.xb-nav-container[data-layout-style="desktop"] .xb-tag-favorites,
.xb-nav-container[data-layout-style="desktop"] .xb-personal-panel {
    background: var(--xb-desktop-panel-soft);
    border-color: var(--xb-desktop-panel-border);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    box-shadow: 0 10px 22px rgba(1, 12, 22, 0.26);
}

.xb-nav-container[data-layout-style="desktop"] .xb-tag-filter {
    margin: 0 auto 10px;
    padding: 10px 12px;
    gap: 8px;
}

.xb-nav-container[data-layout-style="desktop"] .xb-tag-favorites {
    margin: 0 auto 10px;
    padding: 10px 12px;
}

.xb-nav-container[data-layout-style="desktop"] .xb-personal-panel {
    margin: 0 auto 10px;
    padding: 10px 12px;
}

.xb-nav-container[data-layout-style="desktop"] .xb-personal-label,
.xb-nav-container[data-layout-style="desktop"] .xb-personal-toggle {
    color: rgba(236, 248, 255, 0.96);
}

.xb-nav-container[data-layout-style="desktop"] .xb-switch-ui {
    background: rgba(208, 231, 248, 0.26);
    border-color: rgba(205, 233, 255, 0.34);
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.24);
}

.xb-nav-container[data-layout-style="desktop"] .xb-switch-ui::after {
    background: rgba(248, 253, 255, 0.98);
}

.xb-nav-container[data-layout-style="desktop"] .xb-switch-toggle input[type="checkbox"]:checked + .xb-switch-ui {
    background: var(--xb-primary);
    border-color: var(--xb-primary-light);
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.14);
}

.xb-nav-container[data-layout-style="desktop"] .xb-tag-btn,
.xb-nav-container[data-layout-style="desktop"] .xb-tag-favorite-shortcut {
    background: var(--xb-desktop-chip-bg) !important;
    border-color: var(--xb-desktop-chip-border) !important;
    color: var(--xb-desktop-chip-text) !important;
}

.xb-nav-container[data-layout-style="desktop"] .xb-tag-chip {
    background: rgba(255, 255, 255, 0.1);
}

.xb-nav-container[data-layout-style="desktop"] .xb-tag-fav-btn {
    color: rgba(229, 245, 255, 0.88);
}

.xb-nav-container[data-layout-style="desktop"] .xb-tag-btn.active,
.xb-nav-container[data-layout-style="desktop"] .xb-tag-favorite-shortcut.active {
    background: var(--xb-primary);
    border-color: var(--xb-primary);
    color: #ffffff;
}

.xb-nav-container[data-layout-style="desktop"] .xb-density-btn,
.xb-nav-container[data-layout-style="desktop"] .xb-card-style-btn,
.xb-nav-container[data-layout-style="desktop"] .xb-layout-style-btn {
    background: var(--xb-desktop-chip-bg);
    border-color: var(--xb-desktop-chip-border);
    color: var(--xb-desktop-chip-text);
}

.xb-nav-container[data-layout-style="desktop"] .xb-density-btn.active,
.xb-nav-container[data-layout-style="desktop"] .xb-card-style-btn.active,
.xb-nav-container[data-layout-style="desktop"] .xb-layout-style-btn.active {
    background: var(--xb-primary);
    border-color: var(--xb-primary);
}

.xb-nav-container[data-layout-style="desktop"] .xb-personal-group-density,
.xb-nav-container[data-layout-style="desktop"] .xb-personal-group-card-style {
    display: none;
}

.xb-nav-container[data-layout-style="desktop"] .xb-personal-group-layout {
    margin-right: 8px;
}

.xb-nav-container[data-layout-style="desktop"] .xb-personal-group-visual {
    margin-left: auto;
}

.xb-nav-container[data-layout-style="desktop"] .xb-personal-group-visual .xb-theme-btn,
.xb-nav-container[data-layout-style="desktop"] .xb-personal-group-visual .xb-wallpaper-btn {
    background: var(--xb-desktop-chip-bg);
    border-color: var(--xb-desktop-chip-border);
    color: var(--xb-desktop-chip-text);
    box-shadow: 0 8px 18px rgba(3, 15, 24, 0.28);
}

.xb-nav-container[data-layout-style="desktop"] .xb-personal-group-visual .xb-theme-btn:hover,
.xb-nav-container[data-layout-style="desktop"] .xb-personal-group-visual .xb-wallpaper-btn:hover {
    border-color: var(--xb-primary);
    color: #ffffff;
}

.xb-nav-container[data-layout-style="desktop"] .xb-desktop-rail {
    display: flex;
    position: fixed;
    top: 76px;
    left: 10px;
    width: 78px;
    padding: 10px 7px;
    gap: 8px;
    flex-direction: column;
    border-radius: 22px;
    background: var(--xb-desktop-panel-strong);
    border: 1px solid var(--xb-desktop-panel-border);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    box-shadow: 0 14px 26px rgba(0, 0, 0, 0.24);
    z-index: 140;
    max-height: calc(100vh - 96px);
    overflow-y: auto;
    scrollbar-width: thin;
}

body.admin-bar .xb-nav-container[data-layout-style="desktop"] .xb-desktop-rail {
    top: 108px;
    max-height: calc(100vh - 128px);
}

.xb-desktop-rail-item {
    border: none;
    background: transparent;
    color: #ecf8ff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    border-radius: 12px;
    padding: 6px 2px;
    cursor: pointer;
    transition: var(--xb-transition-fast);
    min-height: 62px;
}

.xb-desktop-rail-item:hover {
    background: rgba(222, 244, 255, 0.18);
}

.xb-desktop-rail-home {
    background: rgba(224, 244, 255, 0.2);
}

.xb-desktop-rail-glyph {
    font-size: 20px;
    line-height: 1;
}

.xb-desktop-rail-icon {
    width: 26px;
    height: 26px;
    border-radius: 7px;
    object-fit: cover;
}

.xb-desktop-rail-text {
    font-size: 11px;
    line-height: 1;
    opacity: 0.95;
}

.xb-nav-container[data-layout-style="desktop"] .xb-nav-main {
    max-width: var(--xb-shell-max-width);
    width: calc(100% - 32px);
    padding-left: 108px;
    padding-right: var(--xb-spacing-md);
}

.xb-nav-container[data-layout-style="desktop"] .xb-nav-sidebar,
.xb-nav-container[data-layout-style="desktop"] .xb-nav-widgets {
    display: none;
}

.xb-nav-container[data-layout-style="desktop"] .xb-nav-section {
    background: transparent;
    border: none;
    box-shadow: none;
    margin-bottom: 14px;
    padding: 0;
}

.xb-nav-container[data-layout-style="desktop"] .xb-user-section {
    border: none;
    background: transparent;
    border-radius: 0;
    padding: 0;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    box-shadow: none;
}

.xb-nav-container[data-layout-style="desktop"] .xb-user-section .xb-title {
    margin-bottom: var(--xb-spacing-md);
}

.xb-nav-container[data-layout-style="desktop"] .xb-user-login-guide {
    background: rgba(220, 240, 255, 0.12);
    border: 1px dashed rgba(222, 242, 255, 0.4);
}

.xb-nav-container[data-layout-style="desktop"] .xb-user-login-guide p {
    color: rgba(236, 248, 255, 0.92) !important;
}

.xb-nav-container[data-layout-style="desktop"] .xb-no-links-tip {
    background: rgba(220, 240, 255, 0.1);
    border-color: rgba(208, 233, 252, 0.38);
    color: rgba(236, 248, 255, 0.9) !important;
}

.xb-nav-container[data-layout-style="desktop"] .xb-title {
    color: rgba(237, 248, 255, 0.98);
    border-left-color: var(--xb-primary-light);
    text-shadow: 0 4px 14px rgba(1, 10, 18, 0.65);
}

.xb-nav-container[data-layout-style="desktop"] .xb-nav-items {
    grid-template-columns: repeat(auto-fill, minmax(104px, 1fr));
    gap: 20px 12px;
}

.xb-nav-container[data-layout-style="desktop"] .xb-nav-card-wrap {
    min-width: 0;
}

.xb-nav-container[data-layout-style="desktop"] .xb-nav-item {
    min-height: 128px;
    padding: 7px 4px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    border: none;
    box-shadow: none;
    background: transparent;
}

.xb-nav-container[data-layout-style="desktop"] .xb-nav-item:hover {
    transform: translateY(-3px);
    background: rgba(226, 245, 255, 0.2);
    border-radius: 16px;
    box-shadow: 0 12px 22px rgba(2, 13, 22, 0.28);
}

.xb-nav-container[data-layout-style="desktop"] .xb-nav-icon {
    width: 68px;
    height: 68px;
    margin: 0 0 9px;
    border-radius: 16px;
    box-shadow: 0 8px 18px rgba(1, 13, 22, 0.28);
}

.xb-nav-container[data-layout-style="desktop"] .xb-nav-info {
    text-align: center;
}

.xb-nav-container[data-layout-style="desktop"] .xb-nav-name {
    white-space: normal;
    text-overflow: clip;
    overflow: hidden;
    line-height: 1.3;
    max-height: 2.56em;
    color: rgba(242, 250, 255, 0.98);
    text-shadow: 0 3px 10px rgba(1, 12, 22, 0.6);
}

.xb-nav-container[data-layout-style="desktop"] .xb-nav-desc-short,
.xb-nav-container[data-layout-style="desktop"] .xb-nav-desc-full,
.xb-nav-container[data-layout-style="desktop"] .xb-tag-badge {
    display: none !important;
}

.xb-nav-container[data-layout-style="desktop"] .xb-fav-nav-btn {
    top: 6px;
    right: 6px;
    background: rgba(245, 252, 255, 0.96);
    border-color: rgba(160, 182, 204, 0.42);
    color: #556274;
}

.xb-nav-container[data-layout-style="desktop"] .xb-fav-nav-btn.active {
    color: #f59e0b;
    background: rgba(255, 251, 235, 0.96);
    border-color: rgba(245, 158, 11, 0.6);
}

.xb-nav-container[data-layout-style="desktop"] .xb-desktop-bottom {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    width: min(840px, calc(100vw - 140px));
    max-width: calc(var(--xb-shell-max-width) - 220px);
    margin: 0;
    padding: 8px 10px;
    position: fixed;
    left: 50%;
    bottom: 14px;
    transform: translateX(-50%);
    z-index: 132;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(230, 246, 255, 0.26), rgba(173, 216, 244, 0.14));
    border: 1px solid rgba(240, 250, 255, 0.58);
    backdrop-filter: blur(16px) saturate(1.28);
    -webkit-backdrop-filter: blur(16px) saturate(1.28);
    box-shadow:
        0 20px 36px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.34),
        inset 0 -1px 0 rgba(180, 220, 246, 0.26);
    overflow: visible;
}

/* 桌面布局滚动时降载：降低滤镜开销，避免滚动卡顿 */
.xb-nav-container[data-layout-style="desktop"].xb-desktop-scrolling::before {
    filter: none;
    transform: none;
}

.xb-nav-container[data-layout-style="desktop"].xb-desktop-scrolling .xb-nav-search,
.xb-nav-container[data-layout-style="desktop"].xb-desktop-scrolling .xb-tag-filter,
.xb-nav-container[data-layout-style="desktop"].xb-desktop-scrolling .xb-tag-favorites,
.xb-nav-container[data-layout-style="desktop"].xb-desktop-scrolling .xb-personal-panel,
.xb-nav-container[data-layout-style="desktop"].xb-desktop-scrolling .xb-desktop-rail,
.xb-nav-container[data-layout-style="desktop"].xb-desktop-scrolling .xb-desktop-bottom {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    box-shadow: none !important;
}

.xb-nav-container[data-layout-style="desktop"].xb-desktop-scrolling .xb-nav-item,
.xb-nav-container[data-layout-style="desktop"].xb-desktop-scrolling .xb-desktop-shortcut {
    transition: none !important;
}

.xb-desktop-module {
    border-radius: 14px;
    padding: 8px 8px;
    background: var(--xb-desktop-panel-bg);
    border: 1px solid var(--xb-desktop-panel-border);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    box-shadow: none;
}

.xb-nav-container[data-layout-style="desktop"] .xb-desktop-module {
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 0;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

.xb-nav-container[data-layout-style="desktop"] .xb-desktop-module-recent,
.xb-nav-container[data-layout-style="desktop"] .xb-desktop-module-favorite {
    display: none;
}

.xb-desktop-module-title {
    font-size: 12px;
    color: rgba(235, 248, 255, 0.96);
    margin-bottom: 6px;
    font-weight: 600;
}

.xb-nav-container[data-layout-style="desktop"] .xb-desktop-module-dock .xb-desktop-module-title {
    display: none;
}

.xb-desktop-shortcuts {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 8px;
    scrollbar-width: thin;
    padding: 4px 2px 2px;
}

.xb-desktop-shortcuts-compact {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 8px;
    padding: 4px 2px 2px;
}

.xb-desktop-shortcut {
    text-decoration: none !important;
    color: rgba(239, 249, 255, 0.98) !important;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 6px;
    padding: 8px 6px 4px;
    border-radius: 12px;
    transition: var(--xb-transition-fast);
    min-width: 66px;
    flex: 0 0 auto;
}

.xb-desktop-shortcut:hover {
    color: rgba(239, 249, 255, 0.98) !important;
    background: rgba(225, 244, 255, 0.26);
    box-shadow: inset 0 0 0 1px rgba(236, 248, 255, 0.35);
    transform: translateY(-2px);
}

.xb-desktop-shortcut:visited,
.xb-desktop-shortcut:focus {
    color: rgba(239, 249, 255, 0.98) !important;
}

.xb-desktop-shortcut:hover .xb-desktop-shortcut-name {
    color: rgba(239, 249, 255, 0.98) !important;
}

.xb-desktop-shortcut-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: rgba(246, 252, 255, 0.94);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    font-weight: 600;
    color: var(--xb-primary-dark);
}

.xb-desktop-shortcut-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.xb-desktop-shortcut-name {
    font-size: 12px;
    line-height: 1.2;
    text-align: center;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: inherit;
}

.xb-desktop-empty {
    color: rgba(230, 245, 255, 0.88);
    font-size: 12px;
}

#xb-submit-form input[type="text"],
#xb-submit-form input[type="url"],
#xb-submit-form select,
#xb-submit-form textarea {
    width: 100%;
    border: 1px solid var(--xb-gray-300);
    border-radius: var(--xb-radius-md);
    padding: 9px 11px;
    color: var(--xb-text-body);
    background: var(--xb-bg-card);
}

#xb-submit-form textarea {
    resize: vertical;
    min-height: 90px;
}

#xb-submit-form input:focus,
#xb-submit-form select:focus,
#xb-submit-form textarea:focus {
    outline: none;
    border-color: var(--xb-primary);
    box-shadow: var(--xb-shadow-focus);
}

@media (max-width: 768px) {
    .xb-nav-container {
        padding: 12px;
    }

    .xb-nav-main,
    .xb-personal-panel,
    .xb-tag-favorites {
        width: calc(100% - 8px);
    }

    .xb-personal-panel {
        padding: 12px;
        gap: 10px;
        margin-bottom: 12px;
    }

    .xb-personal-group {
        width: 100%;
        justify-content: flex-start;
        flex-wrap: wrap;
        padding-right: 0;
        gap: 6px;
    }

    .xb-personal-group-visual {
        margin-left: 0;
    }

    .xb-personal-label {
        width: 100%;
        margin-bottom: 2px;
    }

    .xb-personal-toggle {
        width: 100%;
        font-size: 12px;
    }

    .xb-layout-style-btn,
    .xb-density-btn,
    .xb-card-style-btn {
        padding: 6px 10px;
        font-size: 12px;
    }

    .xb-fav-nav-btn {
        opacity: 1;
        transform: none;
    }

    .xb-nav-search {
        width: calc(100% - 8px);
        margin-bottom: 14px;
        padding: 12px;
    }

    .xb-nav-search > * {
        max-width: none;
    }

    .xb-search-tabs {
        flex-wrap: nowrap;
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 4px;
        scrollbar-width: thin;
    }

    .xb-search-tab {
        white-space: nowrap;
        flex-shrink: 0;
    }

    .xb-tag-filter {
        width: calc(100% - 8px);
        padding: 10px;
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        gap: 6px;
    }

    .xb-tag-chip {
        flex-shrink: 0;
    }

    .xb-nav-section {
        border-radius: var(--xb-radius-lg);
        padding: 12px;
        margin-bottom: 12px;
    }

    .xb-title {
        font-size: 14px;
        padding-left: 10px;
        margin-bottom: 10px;
    }

    .xb-nav-item {
        border-radius: var(--xb-radius-md);
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-desktop-rail {
        display: none;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-desktop-hero {
        width: calc(100% - 8px);
        margin: 6px auto 12px;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-desktop-clock {
        font-size: clamp(36px, 10vw, 54px);
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-desktop-date {
        margin-top: 8px;
        font-size: 14px;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-nav-search,
    .xb-nav-container[data-layout-style="desktop"] .xb-tag-filter,
    .xb-nav-container[data-layout-style="desktop"] .xb-tag-favorites,
    .xb-nav-container[data-layout-style="desktop"] .xb-personal-panel {
        background: var(--xb-desktop-panel-soft);
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-nav-main,
    .xb-nav-container[data-layout-style="desktop"] .xb-desktop-bottom {
        width: calc(100% - 8px);
        padding-left: 0;
        padding-right: 0;
    }

    .xb-nav-container[data-layout-style="desktop"] {
        padding-bottom: 18px;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-nav-items {
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 10px 8px;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-nav-item {
        min-height: 104px;
        padding: 6px 3px;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-nav-icon {
        width: 50px;
        height: 50px;
        border-radius: 13px;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-nav-name {
        font-size: 12px;
        line-height: 1.25;
        max-height: 2.5em;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-desktop-bottom {
        grid-template-columns: 1fr;
        gap: 10px;
        position: static;
        left: auto;
        bottom: auto;
        transform: none;
        max-width: none;
        margin: 8px auto 0;
        padding: 0;
        border: none;
        background: transparent;
        box-shadow: none;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-desktop-module {
        padding: 10px;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-desktop-module-dock {
        background: var(--xb-desktop-panel-bg);
        border: 1px solid rgba(205, 233, 255, 0.22);
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-desktop-shortcuts {
        display: flex;
        flex-wrap: nowrap;
        overflow-x: auto;
        gap: 8px;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-desktop-shortcuts-compact {
        display: flex;
        flex-wrap: nowrap;
        overflow-x: auto;
    }
}

@media (max-width: 560px) {
    .xb-nav-items {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .xb-nav-item {
        min-height: 54px;
        padding: 9px 10px;
    }

    .xb-nav-icon {
        width: 30px;
        height: 30px;
        margin-right: 8px;
    }

    .xb-nav-name {
        font-size: 13px;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-nav-name {
        font-size: 12px;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-nav-search {
        padding: 10px;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-search-tab {
        padding: 7px 10px;
        font-size: 13px;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-nav-items {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 8px;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-nav-item {
        min-height: 96px;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-nav-icon {
        width: 44px;
        height: 44px;
        border-radius: 12px;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-desktop-module {
        padding: 10px;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-desktop-shortcut-icon {
        width: 38px;
        height: 38px;
    }
}

@media (max-width: 1200px) {
    .xb-nav-container[data-layout-style="magazine"] .xb-nav-main {
        display: block;
    }

    .xb-nav-container[data-layout-style="magazine"] .xb-nav-content {
        display: block;
    }

    .xb-nav-container[data-layout-style="magazine"] .xb-nav-section {
        margin-bottom: var(--xb-spacing-lg);
    }

    .xb-nav-container[data-layout-style="magazine"] .xb-nav-widgets {
        width: 100%;
        position: static;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-desktop-rail {
        display: none;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-nav-main,
    .xb-nav-container[data-layout-style="desktop"] .xb-desktop-bottom {
        padding-left: 0;
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-desktop-bottom {
        width: min(760px, calc(100vw - 32px));
    }

    .xb-nav-container[data-layout-style="desktop"] .xb-desktop-module-dock {
        background: var(--xb-desktop-panel-bg);
    }
}

/* ========================================
   v2.2 经典/桌面布局彻底分层
   ======================================== */

.xb-nav-container.xb-layout-classic .xb-desktop-hero,
.xb-nav-container.xb-layout-classic .xb-desktop-rail,
.xb-nav-container.xb-layout-classic .xb-desktop-bottom {
    display: none !important;
}

.xb-nav-container.xb-layout-desktop .xb-nav-sidebar,
.xb-nav-container.xb-layout-desktop .xb-nav-widgets {
    display: none !important;
}

.xb-nav-container.xb-layout-desktop .xb-desktop-module-dock {
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
}

.xb-nav-container.xb-layout-desktop .xb-personal-group-density,
.xb-nav-container.xb-layout-desktop .xb-personal-group-card-style {
    display: none !important;
}

/* 经典布局：缩小搜索输入区域 */
.xb-nav-container.xb-layout-classic .xb-nav-search {
    padding: 14px 16px;
    margin-bottom: 16px;
}

.xb-nav-container.xb-layout-classic .xb-nav-search > * {
    max-width: 760px;
}

.xb-nav-container.xb-layout-classic .xb-search-input-wrapper {
    padding: 4px 6px;
}

.xb-nav-container.xb-layout-classic #xb-search-input {
    padding: 9px 12px;
    font-size: 15px;
}

.xb-nav-container.xb-layout-classic #xb-search-btn {
    width: 40px;
    height: 40px;
}

.xb-nav-container .xb-nav-search,
.xb-nav-container .xb-search-input-wrapper {
    overflow: visible;
}

.xb-nav-container .xb-theme-switcher {
    z-index: 950;
}

.xb-nav-container .xb-theme-dropdown {
    z-index: 9600;
}

/* 对齐启灵主题暗黑模式变量（html.dark-mode + --dm-*） */
html.dark-mode .xb-nav-container.xb-layout-classic {
    --xb-bg-page: var(--dm-bg, #0f172a);
    --xb-bg-card: var(--dm-bg-card, #1e293b);
    --xb-bg-card-hover: #24344a;
    --xb-text-dark: var(--dm-text, #e2e8f0);
    --xb-text-body: var(--dm-text, #e2e8f0);
    --xb-text-muted: var(--dm-text-muted, #94a3b8);
    --xb-text-light: var(--dm-text-muted, #94a3b8);
    --xb-gray-50: var(--dm-bg-secondary, #1e293b);
    --xb-gray-100: var(--dm-bg-secondary, #1e293b);
    --xb-gray-200: var(--dm-border, #334155);
    --xb-gray-300: #415269;
}

html.dark-mode .xb-nav-container.xb-layout-classic .xb-nav-search,
html.dark-mode .xb-nav-container.xb-layout-classic .xb-nav-section,
html.dark-mode .xb-nav-container.xb-layout-classic .xb-nav-sidebar,
html.dark-mode .xb-nav-container.xb-layout-classic .xb-widget,
html.dark-mode .xb-nav-container.xb-layout-classic .xb-tag-filter,
html.dark-mode .xb-nav-container.xb-layout-classic .xb-tag-favorites,
html.dark-mode .xb-nav-container.xb-layout-classic .xb-personal-panel {
    background: rgba(30, 41, 59, 0.94);
    border-color: var(--dm-border, #334155);
    box-shadow: 0 12px 30px rgba(2, 8, 20, 0.35);
    background-image: none;
}

html.dark-mode .xb-nav-container.xb-layout-classic .xb-search-input-wrapper {
    background: rgba(15, 23, 42, 0.9);
    border-color: var(--dm-border, #334155);
}

html.dark-mode .xb-nav-container.xb-layout-classic .xb-theme-dropdown {
    background: rgba(30, 41, 59, 0.98);
    border: 1px solid var(--dm-border, #334155);
}

html.dark-mode .xb-nav-container.xb-layout-classic .xb-theme-option {
    color: var(--dm-text, #e2e8f0);
}

/* 经典布局暗夜配色，避免文字在浅底不可读 */
.xb-nav-container.xb-layout-classic[data-theme="dark"] .xb-nav-search,
.xb-nav-container.xb-layout-classic[data-theme="dark"] .xb-nav-section,
.xb-nav-container.xb-layout-classic[data-theme="dark"] .xb-nav-sidebar,
.xb-nav-container.xb-layout-classic[data-theme="dark"] .xb-widget,
.xb-nav-container.xb-layout-classic[data-theme="dark"] .xb-tag-filter,
.xb-nav-container.xb-layout-classic[data-theme="dark"] .xb-tag-favorites,
.xb-nav-container.xb-layout-classic[data-theme="dark"] .xb-personal-panel {
    background: rgba(21, 32, 52, 0.95);
    background-image: none;
    border-color: rgba(67, 87, 122, 0.7);
}

.xb-nav-container.xb-layout-classic[data-theme="dark"] .xb-search-input-wrapper {
    background: rgba(10, 17, 31, 0.9);
    border-color: rgba(67, 87, 122, 0.7);
}

.xb-nav-container.xb-layout-classic[data-theme="dark"] .xb-density-btn,
.xb-nav-container.xb-layout-classic[data-theme="dark"] .xb-card-style-btn,
.xb-nav-container.xb-layout-classic[data-theme="dark"] .xb-layout-style-btn,
.xb-nav-container.xb-layout-classic[data-theme="dark"] .xb-tag-btn,
.xb-nav-container.xb-layout-classic[data-theme="dark"] .xb-tag-favorite-shortcut {
    background: rgba(30, 41, 59, 0.95);
    color: #dbe8ff;
    border-color: rgba(71, 85, 105, 0.9);
}

.xb-nav-container.xb-layout-classic[data-theme="dark"] .xb-theme-option {
    color: #dbe8ff;
}

/* 桌面 Dock 自定义交互 */
.xb-nav-container.xb-layout-desktop .xb-dock-pin-btn {
    position: absolute;
    top: 6px;
    left: 6px;
    width: 24px;
    height: 24px;
    border-radius: 999px;
    border: 1px solid rgba(196, 225, 245, 0.35);
    background: rgba(10, 26, 42, 0.68);
    color: #d9efff;
    font-size: 12px;
    cursor: pointer;
    opacity: 0;
    transform: translateY(2px);
    transition: var(--xb-transition-fast);
    z-index: 26;
}

.xb-nav-container.xb-layout-classic .xb-dock-pin-btn {
    display: none !important;
}

.xb-nav-container.xb-layout-desktop .xb-nav-card-wrap:hover .xb-dock-pin-btn,
.xb-nav-container.xb-layout-desktop .xb-dock-pin-btn.active {
    opacity: 1;
    transform: translateY(0);
}

.xb-nav-container.xb-layout-desktop .xb-dock-pin-btn.active {
    background: var(--xb-primary);
    border-color: var(--xb-primary-light);
    color: #ffffff;
}

.xb-dragging-source {
    opacity: 0.56 !important;
}

#xb-desktop-dock-list.is-drag-over {
    outline: 2px dashed rgba(151, 214, 255, 0.85);
    outline-offset: 4px;
    border-radius: 14px;
}

.xb-nav-container.xb-layout-desktop .xb-desktop-shortcut {
    position: relative;
    overflow: visible;
}

.xb-nav-container.xb-layout-desktop .xb-desktop-dock-remove {
    position: absolute;
    top: -2px;
    right: -2px;
    width: 19px;
    height: 19px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.45);
    background: rgba(16, 24, 40, 0.85);
    color: #f8fafc;
    font-size: 12px;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transition: var(--xb-transition-fast);
    z-index: 16;
}

.xb-nav-container.xb-layout-desktop .xb-desktop-shortcut:hover .xb-desktop-dock-remove,
.xb-nav-container.xb-layout-desktop .xb-desktop-shortcut:focus-within .xb-desktop-dock-remove {
    opacity: 1;
    pointer-events: auto;
}

.xb-nav-container.xb-layout-desktop .xb-desktop-dock-remove:hover {
    background: rgba(220, 38, 38, 0.88);
    border-color: rgba(254, 226, 226, 0.75);
}

.xb-nav-container.xb-layout-desktop .xb-desktop-shortcut:hover,
.xb-nav-container.xb-layout-desktop .xb-desktop-shortcut:focus {
    color: rgba(239, 249, 255, 0.98) !important;
}

/* 移动端桌面布局：保持底部 Dock 固定 */
@media (max-width: 768px) {
    .xb-nav-container.xb-layout-desktop {
        padding-bottom: calc(118px + env(safe-area-inset-bottom));
    }

    .xb-nav-container.xb-layout-desktop .xb-nav-main {
        padding-bottom: 10px;
    }

    .xb-nav-container.xb-layout-desktop .xb-desktop-bottom {
        position: fixed;
        left: 50%;
        bottom: max(8px, env(safe-area-inset-bottom));
        transform: translateX(-50%);
        width: calc(100% - 12px);
        max-width: 560px;
        margin: 0;
        padding: 8px;
        border-radius: 16px;
        background: var(--xb-desktop-panel-strong);
        border: 1px solid var(--xb-desktop-panel-border);
        box-shadow: 0 14px 30px rgba(2, 10, 20, 0.5);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
    }

    .xb-nav-container.xb-layout-desktop .xb-desktop-module {
        padding: 7px;
    }

    .xb-nav-container.xb-layout-desktop .xb-desktop-shortcut {
        min-width: 58px;
    }

    .xb-nav-container.xb-layout-desktop .xb-dock-pin-btn,
    .xb-nav-container.xb-layout-desktop .xb-fav-nav-btn {
        display: none !important;
    }

    .xb-nav-container.xb-layout-classic .xb-nav-search {
        padding: 10px;
        margin-bottom: 12px;
    }

    .xb-nav-container.xb-layout-classic #xb-search-input {
        font-size: 14px;
        padding: 8px 10px;
    }
}

/* 触屏设备下，桌面布局隐藏卡片角标按钮，避免遮挡与误触 */
@media (hover: none) and (pointer: coarse) {
    .xb-nav-container.xb-layout-desktop .xb-dock-pin-btn,
    .xb-nav-container.xb-layout-desktop .xb-fav-nav-btn {
        display: none !important;
    }
}

@media (max-width: 560px) {
    .xb-nav-container.xb-layout-desktop .xb-desktop-shortcut-icon {
        width: 36px;
        height: 36px;
    }

    .xb-nav-container.xb-layout-desktop .xb-desktop-shortcut-name {
        font-size: 11px;
    }
}

@media (max-width: 980px) {
    .xb-wallpaper-modal-content {
        width: calc(100vw - 16px);
        max-height: calc(100vh - 16px);
        padding: 12px;
    }

    .xb-wallpaper-header-main {
        padding-right: 40px;
    }

    .xb-wallpaper-visual-bar {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .xb-wallpaper-visual-actions {
        justify-content: flex-start;
    }

    .xb-wallpaper-body {
        grid-template-columns: 1fr;
        max-height: calc(100vh - 120px);
    }

    .xb-wallpaper-sidebar {
        max-height: none;
        overflow: visible;
    }

    .xb-wallpaper-categories {
        display: flex;
        overflow-x: auto;
        overflow-y: hidden;
        gap: 8px;
        padding-bottom: 4px;
        max-height: none;
    }

    .xb-wallpaper-category-btn {
        white-space: nowrap;
        min-width: max-content;
    }

    .xb-wallpaper-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }

    .xb-wallpaper-card img {
        height: 92px;
    }
}