:root {
    /* 默认夜间模式（深色主题） */
    --bg-color: #004578;
    --bg-image: url('../assets/windows-dark.jpg');
    --start-bg: rgba(0, 0, 0, 0.85);
    --sidebar-bg: rgba(0, 0, 0, 0.2);
    --text-color: #ffffff;
    --subtext-color: #aaaaaa;
    --taskbar-bg: rgba(0, 0, 0, 0.8);
    --hover-bg: rgba(255, 255, 255, 0.1);
    
    --tile-gap: 4px;
    --accent-blue: #0078d7;
    --accent-purple: #744da9;
    --accent-orange: #ca5010;
    --accent-green: #107c10;
    --accent-teal: #008272;
    --accent-red: #e81123;
    --accent-darkblue: #002050;
}

[data-theme="light"] {
    /* 日间模式（浅色主题） */
    --bg-color: #0078d7;
    --bg-image: url('../assets/windows-light.jpg');
    --start-bg: rgba(255, 255, 255, 0.85);
    --sidebar-bg: rgba(255, 255, 255, 0.3);
    --text-color: #000000;
    --subtext-color: #555555;
    --taskbar-bg: rgba(255, 255, 255, 0.8);
    --hover-bg: rgba(0, 0, 0, 0.05);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--bg-color);
    background-image: var(--bg-image);
    background-size: cover;
    background-position: center;
    height: 100vh;
    display: flex;
    align-items: flex-end; /* 让开始菜单在底部 */
    overflow: hidden;
    padding-bottom: 40px; /* 为任务栏留出空间 */
}

.desktop {
    width: 100%;
    height: calc(100vh - 40px);
    display: flex;
    align-items: flex-end;
    position: relative;
}

.start-menu {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 800px;
    height: 85%; /* 改为占据桌面高度 of 85% */
    max-height: 800px; /* 设置一个最大高度防止在大屏幕上过度拉伸 */
    background: var(--start-bg);
    backdrop-filter: blur(10px);
    display: flex;
    animation: slideUp 0.3s ease-out;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    z-index: 1100;
    transition: transform 0.2s ease-in-out, opacity 0.2s;
}

.start-menu.hidden {
    transform: translateY(100%);
    opacity: 0;
    pointer-events: none;
}

/* Taskbar */
.taskbar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 40px;
    background: var(--taskbar-bg);
    backdrop-filter: blur(15px);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-color);
    z-index: 1000;
}

.start-button {
    width: 48px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.start-button:hover {
    background: var(--hover-bg);
    color: #00adef;
}

.taskbar-icons {
    flex: 1;
    display: flex;
    height: 100%;
}

.taskbar-item {
    width: 48px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    cursor: pointer;
    position: relative;
}

.taskbar-item:hover {
    background: var(--hover-bg);
}

.taskbar-item.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-blue);
}

.taskbar-right {
    display: flex;
    align-items: center;
    height: 100%;
    padding-right: 10px;
}

.system-icons {
    display: flex;
    gap: 15px;
    margin-right: 15px;
    font-size: 14px;
}

.clock {
    text-align: center;
    font-size: 12px;
    cursor: pointer;
    padding: 0 5px;
}

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

.clock .time {
    font-weight: 500;
}

@keyframes slideUp {
    from { transform: translateY(100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Sidebar */
.sidebar {
    width: 48px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 10px 0;
    background: var(--sidebar-bg);
}

.sidebar i {
    color: var(--text-color);
    width: 100%;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 16px;
}

.sidebar i:hover {
    background: var(--hover-bg);
}

/* App List */
.app-list {
    width: 250px;
    padding: 15px;
    overflow-y: auto;
    color: var(--text-color);
    scrollbar-width: thin;
    scrollbar-color: var(--subtext-color) transparent;
}

.app-group {
    margin-bottom: 20px;
}

.group-title {
    font-size: 12px;
    color: var(--subtext-color);
    margin-bottom: 10px;
    padding-left: 10px;
}

.app-item {
    padding: 8px 10px;
    display: flex;
    align-items: center;
    font-size: 13px;
    cursor: pointer;
}

.app-item i {
    width: 24px;
    margin-right: 12px;
    font-size: 16px;
    text-align: center;
}

.app-item:hover {
    background: var(--hover-bg);
}

/* Tiles Container */
.tiles-container {
    flex: 1;
    padding: 15px 25px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.3) transparent;
}

.tile-group {
    margin-bottom: 30px;
}

.tiles-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    grid-auto-rows: min-content;
    gap: var(--tile-gap);
    width: 100%;
}

/* Tile Base */
.tile {
    position: relative;
    cursor: pointer;
    transition: transform 0.1s, box-shadow 0.1s;
    overflow: hidden;
    user-select: none;
    color: white;
}

.tile:hover {
    box-shadow: inset 0 0 0 2px rgba(255,255,255,0.3);
}

.tile:active {
    transform: scale(0.95);
}

.tile i {
    font-size: 24px;
}

.tile-label {
    position: absolute;
    bottom: 5px;
    left: 8px;
    font-size: 11px;
}

/* Tile Sizes */
.tile-small {
    grid-column: span 1;
    aspect-ratio: 1 / 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tile-medium {
    grid-column: span 2;
    aspect-ratio: 1 / 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.tile-wide {
    grid-column: span 4;
    aspect-ratio: 2 / 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.tile-large {
    grid-column: span 4;
    aspect-ratio: 1 / 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* Tile Colors */
.tile-blue { background-color: var(--accent-blue); }
.tile-purple { background-color: var(--accent-purple); }
.tile-orange { background-color: var(--accent-orange); }
.tile-green { background-color: var(--accent-green); }
.tile-teal { background-color: var(--accent-teal); }
.tile-red { background-color: var(--accent-red); }
.tile-darkblue { background-color: var(--accent-darkblue); }

/* Live Tile Animation (3D Flip) */
.live-tile {
    perspective: 1000px;
}

.tile-content {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.tile-front, .tile-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.tile-back {
    transform: rotateX(180deg);
}

.live-tile.flipped .tile-content {
    transform: rotateX(180deg);
}

/* Custom Content for Live Tiles */
.weather-info { text-align: center; }
.temp { font-size: 32px; font-weight: 300; }
.city { font-size: 14px; }

.tile-back img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-snippet {
    padding: 15px;
    font-size: 14px;
    line-height: 1.4;
}

.calendar-day { font-size: 48px; font-weight: bold; }
.calendar-month { font-size: 18px; text-transform: uppercase; margin-top: -10px; }
.calendar-detail { padding: 10px; font-size: 12px; }

/* Responsive Adjustments */
@media (max-width: 850px) {
    .start-menu {
        width: 100%;
        height: 100%;
        animation: none;
    }
    .app-list {
        display: none;
    }
}

/* Window System */
.window-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: calc(100% - 40px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 500;
}

.window-overlay.active {
    display: flex;
}

.window {
    width: 800px;
    height: 600px;
    background: var(--start-bg);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    color: var(--text-color);
    animation: windowOpen 0.2s ease-out;
    position: relative;
}

.window.maximized {
    width: 100% !important;
    height: 100% !important;
    max-width: none !important;
    max-height: none !important;
    transform: none !important;
    border: none;
}

@keyframes windowOpen {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.window-header {
    height: 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 10px;
    background: rgba(255, 255, 255, 0.05);
    cursor: move;
    user-select: none;
}

.window-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
}

.window-controls {
    display: flex;
    height: 100%;
    cursor: default;
}

.control-btn {
    width: 45px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    cursor: pointer;
    transition: background 0.2s;
}

.control-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.close-btn:hover {
    background: #e81123 !important;
    color: white;
}

.window-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.window-split-view {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.file-sidebar {
    width: 200px;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    background: rgba(0, 0, 0, 0.1);
}

.content-viewer {
    flex: 1;
    overflow-y: auto;
    background: rgba(255, 255, 255, 0.02);
    scrollbar-width: thin;
    position: relative;
}

.markdown-body {
    padding: 25px;
    line-height: 1.6;
    font-size: 14px;
    color: var(--text-color);
}

.markdown-body h1, .markdown-body h2, .markdown-body h3 {
    margin-bottom: 16px;
    font-weight: 600;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 8px;
}

.markdown-body ul {
    padding-left: 20px;
    margin-bottom: 16px;
}

.file-list-header {
    font-size: 12px;
    color: var(--subtext-color);
    padding: 15px 10px 10px 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.file-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 5px;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    font-size: 13px;
    cursor: pointer;
    transition: background 0.2s;
    border-radius: 2px;
}

.file-item:hover {
    background: var(--hover-bg);
}

.file-item i {
    color: var(--accent-blue);
    font-size: 14px;
}

.file-item.active {
    background: var(--accent-blue);
    color: white;
}

.file-item.active i {
    color: white;
}

.empty-message, .loading-message {
    text-align: center;
    color: var(--subtext-color);
    font-size: 13px;
    margin-top: 50px;
}

/* Welcome Screen */
.welcome-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1e1e1e 0%, #000000 100%);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.8s;
}

.welcome-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.welcome-content {
    text-align: center;
    color: white;
    animation: welcomeFadeIn 1.2s ease-out;
}

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

.launchpad-icon {
    width: 120px;
    height: 120px;
    background: linear-gradient(180deg, #5ec8fb 0%, #007aff 100%);
    border-radius: 28px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 30px;
    font-size: 60px;
    box-shadow: 0 15px 35px rgba(0, 122, 255, 0.3);
}

.welcome-content h1 {
    font-size: 36px;
    font-weight: 600;
    margin-bottom: 15px;
    letter-spacing: 1px;
}

.welcome-content p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 40px;
}

/* macOS Mode Specific Styles */
body.macos-mode {
    --bg-image: url('https://images.unsplash.com/photo-1542831371-29b0f74f9713?q=80&w=2070&auto=format&fit=crop');
    --start-bg: rgba(0, 0, 0, 0.2);
    --text-color: #ffffff;
    padding-bottom: 0;
    align-items: center;
    background-image: var(--bg-image) !important;
}

body.macos-mode .taskbar {
    display: none;
}

/* macOS Launchpad - Liquid Glass Design Language Implementation */
body.macos-mode .start-menu {
    border-radius: 40px; /* 更加圆润 */
    height: 88%;
    width: 96%;
    max-width: 1300px;
    bottom: 50%;
    left: 50%;
    transform: translate(-50%, 50%);
    
    /* Liquid Glass 核心属性：高透明、高饱和、强模糊 */
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    backdrop-filter: blur(80px) saturate(250%) contrast(110%);
    -webkit-backdrop-filter: blur(80px) saturate(250%) contrast(110%);
    
    /* 玻璃边缘折射感：使用多重内阴影模拟 */
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: 
        0 30px 60px rgba(0, 0, 0, 0.4),
        inset 0 1px 1px rgba(255, 255, 255, 0.3), /* 顶部高光 */
        inset 0 -1px 1px rgba(0, 0, 0, 0.1);    /* 底部微弱阴影 */
    
    display: flex;
    overflow: hidden;
    z-index: 2100;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 顶部流体高光效果 */
body.macos-mode .start-menu::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background: radial-gradient(circle at 50% -20%, rgba(255, 255, 255, 0.15), transparent 60%);
    pointer-events: none;
    z-index: 1;
}

body.macos-mode .sidebar {
    background: rgba(255, 255, 255, 0.03);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 2;
}

body.macos-mode .app-list {
    background: rgba(255, 255, 255, 0.02);
    border-right: 1px solid rgba(255, 255, 255, 0.05);
    z-index: 2;
}

body.macos-mode .tiles-container {
    flex: 1;
    padding: 100px 50px 50px;
    overflow-y: auto;
    z-index: 2;
}

/* Liquid Glass 风格磁贴 */
body.macos-mode .tile {
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

body.macos-mode .tile:hover {
    transform: scale(1.05) translateY(-5px);
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

body.macos-mode .tile-label {
    font-weight: 500;
    letter-spacing: 0.5px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* 隐藏状态下的流畅过渡 */
body.macos-mode .start-menu.hidden {
    transform: translate(-50%, 60%) scale(0.92); /* 模仿向下流动的液体感 */
    opacity: 0;
    pointer-events: none;
    backdrop-filter: blur(0px);
}

/* macOS Launchpad 搜索栏 */
.mac-search-container {
    display: none;
    width: 100%;
    padding: 20px 0;
    justify-content: center;
    position: absolute;
    top: 0;
    z-index: 10;
}

body.macos-mode .mac-search-container {
    display: flex;
}

.mac-search-bar {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    width: 350px;
    backdrop-filter: blur(20px);
    box-shadow: inset 0 0 10px rgba(255, 255, 255, 0.05);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mac-search-bar:focus-within {
    background: rgba(255, 255, 255, 0.15);
    width: 400px;
    border-color: rgba(255, 255, 255, 0.3);
}

.mac-search-bar i {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

.mac-search-bar input {
    background: transparent;
    border: none;
    color: white;
    font-size: 14px;
    width: 100%;
    outline: none;
}

.mac-search-bar input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

body.macos-mode .tiles-container {
    padding-top: 80px; /* 为搜索栏留出空间 */
}

/* macOS Top Bar */
.mac-top-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 28px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    display: none;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    color: white;
    font-size: 13px;
    z-index: 2000;
    border-bottom: 0.5px solid rgba(255, 255, 255, 0.1);
}

body.macos-mode .mac-top-bar {
    display: flex;
}

.top-bar-left, .top-bar-right {
    display: flex;
    gap: 20px;
    align-items: center;
}

.top-bar-left .app-name {
    font-weight: 700;
}

/* macOS Top Bar 增强 */
.top-bar-right {
    gap: 18px;
}

.top-bar-right i {
    font-size: 14px;
    opacity: 0.9;
    cursor: pointer;
}

.top-bar-right i:hover {
    opacity: 1;
}

#macClock {
    font-weight: 500;
    min-width: 45px;
}

/* 控制中心图标 */
.control-center-icon {
    display: flex;
    gap: 4px;
    height: 14px;
    align-items: center;
}

.control-center-icon span {
    width: 14px;
    height: 2px;
    background: white;
    border-radius: 1px;
}

/* macOS Dock */
.mac-dock-container {
    position: fixed;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2000;
    display: none;
    perspective: 1000px;
}

body.macos-mode .mac-dock-container {
    display: block;
}

.mac-dock {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.05));
    backdrop-filter: blur(40px) saturate(200%);
    -webkit-backdrop-filter: blur(40px) saturate(200%);
    padding: 10px;
    border-radius: 24px;
    display: flex;
    align-items: flex-end;
    gap: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.dock-item {
    width: 48px;
    height: 48px;
    cursor: pointer;
    transition: transform 0.2s cubic-bezier(0.25, 0.1, 0.25, 1.4), width 0.2s, height 0.2s;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.dock-item:hover {
    transform: scale(1.5) translateY(-15px);
    margin: 0 10px;
}

.dock-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.2));
}

/* 活跃指示灯 (小圆点) */
.dock-item.active::after {
    content: '';
    position: absolute;
    bottom: -6px;
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    box-shadow: 0 0 5px rgba(255,255,255,0.5);
}

.dock-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    align-self: center;
}

.dock-item::after {
    content: attr(data-label);
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.dock-item:hover::after {
    opacity: 1;
}

/* Mode Selection Buttons */
.mode-selection {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 30px;
}

.mode-btn {
    padding: 12px 25px;
    border-radius: 10px;
    border: none;
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: transform 0.2s, background 0.2s;
    color: white;
}

.win10-btn {
    background: #0078d7;
}

.macos-btn {
    background: #333;
}

.mode-btn:hover {
    transform: translateY(-3px);
    filter: brightness(1.1);
}

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

/* Window Style for macOS */
body.macos-mode .window-overlay {
    top: 28px;
    height: calc(100% - 28px - 78px);
    align-items: center;
    justify-content: center;
}

body.macos-mode .window.maximized {
    width: 100% !important;
    height: 100% !important;
    transform: none !important;
}

body.macos-mode .window {
    border-radius: 12px;
    overflow: hidden;
}

body.macos-mode .window-header {
    background: rgba(255, 255, 255, 0.1);
    height: 38px;
}

body.macos-mode .window-controls {
    order: -1;
    gap: 8px;
    padding-left: 12px;
    display: flex;
    align-items: center;
}

body.macos-mode .control-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    font-size: 0;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 0.5px solid rgba(0, 0, 0, 0.1) !important;
}

/* 调整红绿灯顺序: 红(Close) 黄(Min) 绿(Max) */
body.macos-mode .close-btn { 
    order: 1; 
    background: #ff5f56 !important; 
}
body.macos-mode .minimize-btn { 
    order: 2; 
    background: #ffbd2e !important; 
}
body.macos-mode .maximize-btn { 
    order: 3; 
    background: #27c93f !important; 
}

/* 只有在悬停在 window-controls 容器上时才显示图标符号 */
body.macos-mode .window-controls:hover .control-btn::before {
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    font-size: 7px;
    color: rgba(0, 0, 0, 0.5);
    display: block;
}

body.macos-mode .close-btn::before { content: "\f00d"; }
body.macos-mode .minimize-btn::before { content: "\f068"; }
body.macos-mode .maximize-btn::before { content: "\f065"; }

/* 非悬停状态下隐藏 Font Awesome 默认图标 */
body.macos-mode .control-btn i {
    display: none;
}

body.macos-mode .window-title {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.8);
}