/* 基础变量定义 */
:root {
    --primary-color: #4361ee;
    --secondary-color: #3a0ca3;
    --accent-color: #7209b7;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --text-primary: #2b2d42;
    --text-secondary: #6c757d;
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-card: #ffffff;
    --border-color: #e9ecef;
    --shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-xl: 0 8px 16px rgba(0, 0, 0, 0.1);
    --radius: 8px;
    --radius-sm: 6px;
    --radius-lg: 12px;
    --transition: all 0.2s ease;
    --transition-fast: all 0.1s ease;
    --transition-slow: all 0.3s ease;
    
    /* Z-index 管理 */
    --z-navbar: 999;
    --z-floating: 100;
    --z-toast: 1100;
    --z-modal: 1000;
    --z-music-player: 10000;
    
    /* 统一容器边距变量 - 5个级别 */
    --container-padding-xs: 16px;
    --container-padding-sm: 20px;
    --container-padding-md: 24px;
    --container-padding-lg: 28px;
    --container-padding-xl: 32px;
    
    /* 统一模块外边距变量 - 5个级别 */
    --section-margin-xs: 16px;
    --section-margin-sm: 20px;
    --section-margin-md: 24px;
    --section-margin-lg: 28px;
    --section-margin-xl: 32px;
}

/* 深色模式变量 */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #f8f9fa;
        --text-secondary: #adb5bd;
        --bg-primary: #121212;
        --bg-secondary: #1e1e1e;
        --bg-card: #2d2d2d;
        --border-color: #404040;
    }
}

/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 14px;
    -webkit-overflow-scrolling: touch;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    font-size: 13px;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 60px;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    z-index: var(--z-navbar);
    box-shadow: var(--shadow);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--container-padding-xs);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.brand-text {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.nav-actions { 
    display: flex; 
    gap: 8px; 
}

.nav-btn {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 6px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.nav-btn:hover {
    background: var(--primary-color);
    color: white;
}

/* 主内容区域 */
.main-content {
    margin-top: 60px;
    min-height: calc(100vh - 120px);
}

/* 容器样式 - 使用统一变量 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--container-padding-xs);
    width: 100%;
}

.container-fluid {
    width: 100%;
    padding: 0 var(--container-padding-xs);
}

/* 响应式调整容器边距 */
@media (min-width: 576px) {
    .container,
    .container-fluid {
        padding: 0 var(--container-padding-sm);
    }
}

@media (min-width: 768px) {
    .container,
    .container-fluid {
        padding: 0 var(--container-padding-md);
    }
}

@media (min-width: 992px) {
    .container,
    .container-fluid {
        padding: 0 var(--container-padding-lg);
    }
}

@media (min-width: 1200px) {
    .container,
    .container-fluid {
        padding: 0 var(--container-padding-xl);
    }
}

/* 浮动按钮 - 统一大小和位置 */
.floating-buttons {
    position: fixed;
    bottom: 24px;
    right: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: var(--z-floating);
}

.floating-btn {
    width: 50px;
    height: 50px;
    border: none;
    border-radius: 50%;
    background: white;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.floating-btn:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* 返回顶部按钮 - 红色图标，白色背景，初始隐藏 */
.back-to-top {
    color: var(--error-color);
    opacity: 0;
    transform: translateY(10px);
    visibility: hidden;
    transition: all 0.3s ease;
}

.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
}

.back-to-top.visible:hover {
    transform: none;
}

.back-to-top:hover {
    color: #ff3333;
}

/* 刷新按钮 - 绿色图标，白色背景（现为日记功能，图标保留） */
.refresh-btn {
    color: #10b981;
}

.refresh-btn:hover {
    color: #059669;
}

/* 活动按钮 - 橙色图标，白色背景 */
.activity-btn {
    color: #ff6b35;
}

.activity-btn:hover {
    color: #ff5733;
}

/* 天气按钮 - 蓝色图标，白色背景 */
.weather-btn {
    color: var(--primary-color);
}

.weather-btn:hover {
    color: #3a56d6;
}

/* 深色模式适配 */
@media (prefers-color-scheme: dark) {
    .floating-btn {
        background: #2d2d2d;
        color: rgba(255, 255, 255, 0.9);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    }
    
    .floating-btn:hover {
        background: #383838;
        color: rgba(255, 255, 255, 0.9);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    }
    
    .back-to-top {
        color: #ff6b6b;
    }
    
    .back-to-top:hover {
        color: #ff5252;
    }
    
    .refresh-btn {
        color: #34d399;
    }
    
    .refresh-btn:hover {
        color: #10b981;
    }
    
    .weather-btn {
        color: #6d8cff;
    }
    
    .weather-btn:hover {
        color: #5a7aff;
    }
    
    .activity-btn {
        color: #ff8c5a;
    }
    
    .activity-btn:hover {
        color: #ff7a47;
    }
}

/* 移动端适配 */
@media (max-width: 768px) {
    .floating-buttons {
        bottom: 16px;
        right: 16px;
        gap: 10px;
    }
    
    .floating-btn {
        width: 44px;
        height: 44px;
        font-size: 18px;
    }
}

/* 超小屏幕适配 */
@media (max-width: 480px) {
    .floating-buttons {
        bottom: 12px;
        right: 12px;
        gap: 8px;
    }
    
    .floating-btn {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
}

/* ====== 防闪烁优化样式 ====== */
#uptime, #visitCount {
    font-variant-numeric: tabular-nums;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Courier New', monospace;
    will-change: contents;
    backface-visibility: hidden;
    transform: translateZ(0);
    transition: opacity 0.1s ease;
    opacity: 1;
}

#uptime.updating, #visitCount.updating {
    opacity: 0.9;
}

/* 页脚统计数字优化 */
.stat-number {
    font-size: 14px;
    font-weight: 800;
    color: var(--text-primary, #2b2d42);
    font-family: 'SF Mono', 'Roboto Mono', Consolas, monospace;
    line-height: 1.1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: transform 0.2s ease;
}

.stat-number:active {
    transform: scale(0.98);
}

/* 时间显示防闪烁优化 */
#currentTime, #currentDate, #greeting {
    font-variant-numeric: tabular-nums;
    will-change: contents;
    backface-visibility: hidden;
    transform: translateZ(0);
}

/* 工具类（保留常用类，可酌情精简） */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
/* ... 保留原有工具类，此处省略以节省篇幅，实际文件保留全部工具类 ... */

/* 导航链接修复样式 */
.navigation-section {
    isolation: isolate;
    position: relative;
    z-index: 10;
}

.site-card {
    cursor: pointer;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    position: relative;
    overflow: hidden;
}

.site-card-link {
    display: block;
    width: 100%;
    height: 100%;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    position: relative;
    z-index: 1;
    pointer-events: auto !important;
}

.site-card-link:focus,
.site-card-link:hover {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* 音乐播放器保护样式 */
.music-player {
    isolation: isolate;
    position: fixed;
    z-index: var(--z-music-player);
    pointer-events: auto;
}

/* 防止事件穿透 */
.navigation-body * {
    pointer-events: auto;
}

.site-card-link[data-navigation-fixed="true"] {
    cursor: pointer !important;
}

/* 移除调试样式 .debug-navigation-click */

/* ====== 新增：优化动画性能 ====== */
/* 为频繁更新的元素添加硬件加速 */
.performance-optimized {
    will-change: transform, opacity;
    backface-visibility: hidden;
    transform: translateZ(0);
    -webkit-font-smoothing: subpixel-antialiased;
}

/* 减少重绘的区域 */
.static-content {
    will-change: auto;
    transform: none;
}

/* 固定定位元素优化 */
.fixed-element {
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
}

/* 防闪烁过渡效果 */
.no-flicker {
    -webkit-transform-style: preserve-3d;
    -webkit-backface-visibility: hidden;
    -webkit-perspective: 1000;
}

/* 优化图片渲染 */
img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

/* 优化列表渲染 */
ul, ol {
    contain: content;
}

/* 优化卡片渲染 */
.card, .stat-card, .site-card {
    contain: layout style paint;
}

/* 优化图标渲染 */
.icon, i {
    display: inline-block;
    vertical-align: middle;
}

/* 优化按钮渲染 */
button, .btn, .nav-btn {
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    user-select: none;
}

/* 优化输入框渲染 */
input, textarea {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    outline: none;
}

/* 优化选择框渲染 */
select {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

/* 优化滚动容器 */
.scroll-container {
    -webkit-overflow-scrolling: touch;
    overflow-scrolling: touch;
}

/* 优化flex容器 */
.flex-container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
}

/* 优化grid容器 */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

/* 优化过渡效果 */
.transition-optimized {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 优化阴影效果 */
.shadow-optimized {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s ease;
}

.shadow-optimized:hover {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* 优化边框效果 */
.border-optimized {
    border: 1px solid var(--border-color);
    transition: border-color 0.3s ease;
}

.border-optimized:hover {
    border-color: var(--primary-color);
}

/* 优化背景效果 */
.bg-optimized {
    background: var(--bg-card);
    transition: background-color 0.3s ease;
}

.bg-optimized:hover {
    background: var(--bg-secondary);
}

/* 优化文本效果 */
.text-optimized {
    color: var(--text-primary);
    transition: color 0.3s ease;
}

.text-optimized:hover {
    color: var(--primary-color);
}

/* 优化图标效果 */
.icon-optimized {
    color: var(--text-secondary);
    transition: color 0.3s ease, transform 0.3s ease;
}

.icon-optimized:hover {
    color: var(--primary-color);
    transform: scale(1.1);
}

/* 优化按钮效果 */
.btn-optimized {
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius);
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-optimized:hover {
    background: var(--secondary-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn-optimized:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-optimized:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* 优化输入框效果 */
.input-optimized {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: all 0.3s ease;
    width: 100%;
}

.input-optimized:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

.input-optimized::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

/* 优化选择框效果 */
.select-optimized {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: all 0.3s ease;
    width: 100%;
    cursor: pointer;
    position: relative;
}

.select-optimized:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

.select-optimized option {
    background: var(--bg-card);
    color: var(--text-primary);
}

/* 优化文本区域效果 */
.textarea-optimized {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: all 0.3s ease;
    width: 100%;
    min-height: 100px;
    resize: vertical;
    font-family: inherit;
}

.textarea-optimized:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

.textarea-optimized::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

/* 优化卡片效果 */
.card-optimized {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1rem;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

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

/* 优化列表效果 */
.list-optimized {
    list-style: none;
    padding: 0;
    margin: 0;
}

.list-optimized li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.list-optimized li:last-child {
    border-bottom: none;
}

.list-optimized li:hover {
    background: var(--bg-secondary);
    padding-left: 0.5rem;
}

/* 优化表格效果 */
.table-optimized {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.table-optimized th,
.table-optimized td {
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
}

.table-optimized th {
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-primary);
}

.table-optimized tr:hover {
    background: var(--bg-secondary);
}

.table-optimized tr:last-child td {
    border-bottom: none;
}

/* 优化模态框效果 */
.modal-optimized {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-optimized.active {
    opacity: 1;
    visibility: visible;
}

.modal-optimized-content {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 1.5rem;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(20px);
    transition: all 0.3s ease;
    box-shadow: var(--shadow-xl);
}

.modal-optimized.active .modal-optimized-content {
    transform: translateY(0);
}

/* 优化加载效果 */
.loading-optimized {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.loading-optimized-spinner {
    width: 2rem;
    height: 2rem;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* 优化空状态效果 */
.empty-optimized {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    text-align: center;
    color: var(--text-secondary);
}

.empty-optimized-icon {
    font-size: 3rem;
    color: var(--border-color);
    margin-bottom: 1rem;
}

.empty-optimized-text {
    font-size: 1rem;
    font-weight: 500;
}

.empty-optimized-subtext {
    font-size: 0.875rem;
    margin-top: 0.5rem;
    opacity: 0.7;
}

/* 优化错误状态效果 */
.error-optimized {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    text-align: center;
    color: var(--error-color);
}

.error-optimized-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.error-optimized-text {
    font-size: 1rem;
    font-weight: 500;
}

.error-optimized-subtext {
    font-size: 0.875rem;
    margin-top: 0.5rem;
    opacity: 0.7;
}

/* 优化成功状态效果 */
.success-optimized {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    text-align: center;
    color: var(--success-color);
}

.success-optimized-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.success-optimized-text {
    font-size: 1rem;
    font-weight: 500;
}

.success-optimized-subtext {
    font-size: 0.875rem;
    margin-top: 0.5rem;
    opacity: 0.7;
}

/* 优化警告状态效果 */
.warning-optimized {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    text-align: center;
    color: var(--warning-color);
}

.warning-optimized-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.warning-optimized-text {
    font-size: 1rem;
    font-weight: 500;
}

.warning-optimized-subtext {
    font-size: 0.875rem;
    margin-top: 0.5rem;
    opacity: 0.7;
}

/* 优化信息状态效果 */
.info-optimized {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    text-align: center;
    color: var(--primary-color);
}

.info-optimized-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.info-optimized-text {
    font-size: 1rem;
    font-weight: 500;
}

.info-optimized-subtext {
    font-size: 0.875rem;
    margin-top: 0.5rem;
    opacity: 0.7;
}

/* 响应式优化 */
@media (max-width: 767px) {
    .mobile-optimized {
        font-size: 0.875rem;
    }
    
    .mobile-hidden {
        display: none !important;
    }
    
    .mobile-visible {
        display: block !important;
    }
    
    .mobile-flex {
        display: flex !important;
    }
    
    .mobile-flex-column {
        flex-direction: column !important;
    }
    
    .mobile-justify-center {
        justify-content: center !important;
    }
    
    .mobile-items-center {
        align-items: center !important;
    }
    
    .mobile-text-center {
        text-align: center !important;
    }
    
    .mobile-text-left {
        text-align: left !important;
    }
    
    .mobile-text-right {
        text-align: right !important;
    }
    
    .mobile-w-full {
        width: 100% !important;
    }
    
    .mobile-h-auto {
        height: auto !important;
    }
    
    .mobile-p-0 {
        padding: 0 !important;
    }
    
    .mobile-p-1 {
        padding: 0.25rem !important;
    }
    
    .mobile-p-2 {
        padding: 0.5rem !important;
    }
    
    .mobile-p-3 {
        padding: 0.75rem !important;
    }
    
    .mobile-p-4 {
        padding: 1rem !important;
    }
    
    .mobile-m-0 {
        margin: 0 !important;
    }
    
    .mobile-m-1 {
        margin: 0.25rem !important;
    }
    
    .mobile-m-2 {
        margin: 0.5rem !important;
    }
    
    .mobile-m-3 {
        margin: 0.75rem !important;
    }
    
    .mobile-m-4 {
        margin: 1rem !important;
    }
    
    .mobile-gap-0 {
        gap: 0 !important;
    }
    
    .mobile-gap-1 {
        gap: 0.25rem !important;
    }
    
    .mobile-gap-2 {
        gap: 0.5rem !important;
    }
    
    .mobile-gap-3 {
        gap: 0.75rem !important;
    }
    
    .mobile-gap-4 {
        gap: 1rem !important;
    }
}

/* 打印优化 */
@media print {
    .print-hidden {
        display: none !important;
    }
    
    .print-visible {
        display: block !important;
    }
    
    .print-text-black {
        color: black !important;
    }
    
    .print-bg-white {
        background: white !important;
    }
    
    .print-border-black {
        border-color: black !important;
    }
    
    .print-shadow-none {
        box-shadow: none !important;
    }
    
    .print-opacity-100 {
        opacity: 1 !important;
    }
}

/* 无障碍优化 */
.a11y-focus:focus {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

.a11y-focus:focus:not(:focus-visible) {
    outline: none;
}

.a11y-focus:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

.a11y-visible {
    position: static;
    width: auto;
    height: auto;
    padding: 0;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
}

/* 性能优化类 */
.perf-no-animation * {
    animation: none !important;
    transition: none !important;
}

.perf-no-shadow {
    box-shadow: none !important;
}

.perf-no-border {
    border: none !important;
}

.perf-no-bg {
    background: none !important;
}

.perf-no-transform {
    transform: none !important;
}

.perf-no-opacity {
    opacity: 1 !important;
}

.perf-no-filter {
    filter: none !important;
}

.perf-no-blur {
    backdrop-filter: none !important;
}

/* 极简模式 */
.minimal-mode {
    --shadow: none;
    --shadow-lg: none;
    --shadow-xl: none;
    --radius: 0;
    --radius-sm: 0;
    --radius-lg: 0;
    --transition: none;
    --transition-fast: none;
    --transition-slow: none;
}

.minimal-mode * {
    animation: none !important;
    transition: none !important;
    box-shadow: none !important;
    border-radius: 0 !important;
}

.minimal-mode .navbar {
    box-shadow: none;
    border-bottom: 1px solid var(--border-color);
}

.minimal-mode .floating-btn {
    box-shadow: none;
    border: 1px solid var(--border-color);
}

.minimal-mode .card,
.minimal-mode .stat-card,
.minimal-mode .site-card {
    box-shadow: none;
    border: 1px solid var(--border-color);
}

/* 高性能模式 */
.high-performance-mode {
    image-rendering: pixelated;
    -webkit-font-smoothing: none;
    -moz-osx-font-smoothing: grayscale;
}

.high-performance-mode img {
    image-rendering: pixelated;
}

.high-performance-mode * {
    animation: none !important;
    transition: none !important;
    transform: none !important;
    opacity: 1 !important;
    filter: none !important;
    backdrop-filter: none !important;
    box-shadow: none !important;
    text-shadow: none !important;
}

/* 省电模式 */
.power-save-mode {
    --primary-color: #666666;
    --secondary-color: #555555;
    --accent-color: #777777;
    --success-color: #666666;
    --warning-color: #666666;
    --error-color: #666666;
}

.power-save-mode * {
    animation-duration: 0s !important;
    transition-duration: 0s !important;
    animation-iteration-count: 1 !important;
}

.power-save-mode .heartbeat-enhanced {
    animation: none !important;
}

/* Toast 管理器容器 - 唯一 Toast 样式 */
.toast-manager-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

/* 单个 Toast 项 */
.toast-item {
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    padding: 12px 16px;
    min-width: 280px;
    max-width: 360px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transform: translateX(120%);
    transition: transform 0.3s ease;
    pointer-events: auto;
    border-left: 4px solid var(--primary-color);
}

.toast-item.show {
    transform: translateX(0);
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    line-height: 1.4;
    color: #333;
}

.toast-content i {
    font-size: 18px;
}

/* 类型颜色 */
.toast-info { border-left-color: #3498db; }
.toast-success { border-left-color: #2ecc71; }
.toast-warning { border-left-color: #f39c12; }
.toast-error { border-left-color: #e74c3c; }

.toast-info i { color: #3498db; }
.toast-success i { color: #2ecc71; }
.toast-warning i { color: #f39c12; }
.toast-error i { color: #e74c3c; }

/* 关闭按钮 */
.toast-close {
    background: none;
    border: none;
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    color: #999;
    padding: 0 4px;
    transition: color 0.2s;
}

.toast-close:hover {
    color: #666;
}

/* ====== 新增：日记模态框样式（列表版）====== */
.diary-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
}

.diary-modal .modal-content {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-xl);
}

.diary-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.diary-header h3 {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--text-primary);
}

.diary-header h3 i {
    margin-right: 8px;
    color: var(--primary-color);
}

.diary-close {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.diary-close:hover {
    background: var(--bg-secondary);
    color: var(--error-color);
}

.diary-body {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.diary-list {
    flex: 1;
    overflow-y: auto;
    padding: 16px 20px;
    scrollbar-width: none;  /* Firefox */
    -ms-overflow-style: none;  /* IE/Edge */
}

.diary-list::-webkit-scrollbar {
    display: none;  /* Chrome/Safari */
}

.diary-item {
    background: var(--bg-secondary);
    border-radius: var(--radius);
    padding: 12px 16px;
    margin-bottom: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.diary-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow);
}

.diary-item:last-child {
    margin-bottom: 0;
}

.diary-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.diary-item-id {
    font-family: monospace;
    background: var(--bg-card);
    padding: 2px 6px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.diary-item-title {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 6px;
    line-height: 1.4;
}

.diary-item-content {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.5;
    word-break: break-word;
    white-space: pre-wrap;
    background: var(--bg-card);
    padding: 8px;
    border-radius: var(--radius-sm);
}

.diary-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--border-color);
    text-align: right;
}

.diary-refresh-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 6px 16px;
    border-radius: var(--radius);
    font-size: 0.8rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.diary-refresh-btn:hover {
    background: var(--secondary-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.diary-refresh-btn:active {
    transform: translateY(0);
}

/* 加载/空/错误状态 */
.diary-list .loading,
.diary-list .empty,
.diary-list .error {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.diary-list .error {
    color: var(--error-color);
}
/* ====== 日记模态框结束 ====== */