/* 基础样式设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Press Start 2P', system-ui, -apple-system, sans-serif;
}

@font-face {
    font-family: 'Press Start 2P';
    src: url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');
}

body {
    background-color: #181425;
    color: #f4f4f4;
    image-rendering: pixelated;
}

.container {
    display: flex;
    min-height: 100vh;
}

/* 左侧菜单样式 */
.sidebar {
    width: 80px;
    background-color: #2d2b3a;
    padding: 20px 10px;
    transition: width 0.3s ease;
    position: relative;
    overflow: hidden;
}

.sidebar.expanded {
    width: 240px;
}

.menu-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
    cursor: pointer;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.menu-icon.active {
    background-color: #3b5dc9;
}

.pixel-icon {
    width: 32px;
    height: 32px;
    fill: #f4f4f4;
}

.icon-label {
    font-size: 10px;
    margin-top: 5px;
    text-align: center;
}

/* 游戏列表样式 */
.games-list {
    display: none;
    flex-direction: column;
    gap: 15px;
    padding-top: 10px;
}

.games-list.visible {
    display: flex;
}

.game-icon {
    width: 60px;
    height: 60px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease;
}

.game-icon:hover {
    transform: scale(1.1);
}

.game-icon img {
    width: 32px;
    height: 32px;
    image-rendering: pixelated;
}

.game-icon .icon-label {
    font-size: 8px;
    margin-top: 5px;
    text-align: center;
    max-width: 60px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 主内容区域样式 */
.main-content {
    flex: 1;
    position: relative;
    overflow: hidden;
}

/* 内容容器样式优化 */
.content-container {
    display: none;
    position: fixed;
    top: 0;
    left: 80px;
    right: 0;
    bottom: 0;
    background-color: #181425;
    border-left: 2px solid #3b5dc9;
    z-index: 1000;
    overflow: hidden;
    opacity: 0;
    transform: translateX(100%);
    transition: opacity 0.3s ease, transform 0.3s ease;
    will-change: transform, opacity;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.content-container.visible {
    display: block;
    opacity: 1;
    transform: translateX(0);
}

/* iframe样式优化，去除动画和过渡 */
.content-frame {
    width: 100%;
    height: 100%;
    border: none;
    background-color: #181425;
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    /* 去除动画和过渡 */
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
    will-change: auto;
    backface-visibility: visible;
    -webkit-backface-visibility: visible;
}

/* 返回按钮样式优化 */
.return-button {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background-color: #3b5dc9;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1002;
    transition: all 0.3s ease;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    will-change: transform;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.return-button:hover {
    background-color: #5fcde4;
    transform: scale(1.1);
    box-shadow: 0 6px 12px rgba(95, 205, 228, 0.3);
}

.return-button svg {
    width: 30px;
    height: 30px;
    fill: #fff;
    filter: drop-shadow(0 2px 2px rgba(0, 0, 0, 0.2));
}

/* 像素风格的盒子 */
.pixel-box {
    border: 2px solid #fff;
    background-color: #29366f;
    padding: 5px;
    margin: 5px;
    image-rendering: pixelated;
}

/* 办公工具列表样式 */
.office-list {
    display: none;
}

/* 图标网格布局 */
.icons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 30px;
    padding: 30px;
    margin: 20px;
    animation: fadeIn 0.3s ease;
    transition: opacity 0.3s ease;
}

.icons-grid.hidden {
    display: none;
}

.app-icon {
    background: rgba(59, 93, 201, 0.1);
    border: 2px solid #3b5dc9;
    border-radius: 12px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    aspect-ratio: 1;
}

.app-icon:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(95, 205, 228, 0.2);
    background: rgba(59, 93, 201, 0.2);
}

.app-icon .icon {
    width: 64px;
    height: 64px;
    margin-bottom: 15px;
}

.app-icon .name {
    font-size: 12px;
    text-align: center;
    color: #f4f4f4;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 加载动画优化 */
.loader {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    border: 5px solid #3b5dc9;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
    z-index: 1001;
    will-change: transform;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

@keyframes spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

/* 错误提示优化 */
.error-message {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(255, 0, 77, 0.1);
    border: 2px solid #ff004d;
    border-radius: 8px;
    padding: 20px;
    color: #ff004d;
    font-size: 14px;
    text-align: center;
    z-index: 1001;
    will-change: transform;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

/* 优化过渡效果 */
.icons-grid {
    transition: opacity 0.3s ease;
}

.content-container {
    transition: transform 0.3s ease;
}

/* 响应式布局优化 */
@media (max-width: 768px) {
    .icons-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 20px;
        padding: 15px;
    }

    .app-icon {
        padding: 15px;
    }

    .app-icon .icon {
        width: 48px;
        height: 48px;
    }

    .app-icon .name {
        font-size: 10px;
    }
}

@media (max-width: 480px) {
    .sidebar {
        width: 60px;
    }

    .menu-icon {
        width: 40px;
        height: 40px;
    }

    .content-container {
        left: 60px;
    }
}

/* 添加硬件加速 */
.container,
.sidebar,
.main-content,
.icons-grid,
.app-icon {
    transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    perspective: 1000px;
    -webkit-perspective: 1000px;
}