/* 新的布局样式 */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f8f9fa;
    overflow-x: hidden;
    color: #333;
}

/* 主网格布局 */
.grid-container {
    display: grid;
    grid-template-areas:
        "header header"
        "sidebar main";
    grid-template-columns: 260px 1fr;
    grid-template-rows: 64px 1fr;
    height: 100vh;
    transition: grid-template-columns 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 侧边栏收起时的网格布局 */
.grid-container.sidebar-collapsed {
    grid-template-columns: 70px 1fr;
}

/* 顶栏样式 */
.top-bar {
    grid-area: header;
    background-color: #ffffff;
    color: #333;
    padding: 0 24px;
    display: flex;
    align-items: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    z-index: 100;
    position: relative;
    border-bottom: 1px solid #eaeaea;
}

.top-bar-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-left: 12px;
    flex: 1;
    color: #1a73e8;
}

.top-bar-actions {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-left: auto;
}

/* 侧栏样式 */
.sidebar {
    grid-area: sidebar;
    background-color: #ffffff;
    color: #555;
    padding-top: 20px;
    padding-bottom: 0;
    box-shadow: 1px 0 3px rgba(0,0,0,0.05);
    overflow-y: auto;
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    height: calc(100vh - 64px);
    border-right: 1px solid #eaeaea;
}

/* 当侧边栏收起时的样式 */
.sidebar-collapsed .sidebar-toggle {
    transform: rotate(180deg);
}

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

.sidebar-menu-item {
    padding: 0;
    margin: 4px 8px;
    border-radius: 8px;
    overflow: hidden;
}

.sidebar-menu-link {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    color: #555;
    text-decoration: none;
    transition: all 0.2s;
    border-radius: 8px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-menu-link:hover {
    background-color: #f0f4ff;
    color: #1a73e8;
}

.sidebar-menu-link.active {
    background-color: #e8f0fe;
    color: #1a73e8;
    font-weight: 600;
}

.sidebar-menu-icon {
    margin-right: 12px;
    width: 20px;
    text-align: center;
    display: inline-block;
    font-size: 18px;
    color: #666;
    transition: color 0.2s;
}

.sidebar-menu-link:hover .sidebar-menu-icon,
.sidebar-menu-link.active .sidebar-menu-icon {
    color: #1a73e8;
}

/* 侧栏收起状态下只显示图标 */
.sidebar-collapsed .sidebar-menu-item {
    margin: 4px;
}

.sidebar-collapsed .sidebar-menu-link {
    padding: 12px;
    justify-content: center;
}

.sidebar-collapsed .sidebar-menu-icon {
    margin-right: 0;
    width: 100%;
}

.sidebar-collapsed .sidebar-menu-text {
    display: none;
}

/* 主内容区域 */
.main-content {
    grid-area: main;
    padding: 24px;
    overflow-y: auto;
    background-color: #f8f9fa;
}

/* 响应式设计 */
@media screen and (max-width: 768px) {
    .grid-container {
        grid-template-areas:
            "header"
            "main";
        grid-template-columns: 1fr;
        grid-template-rows: 64px 1fr;
    }
    
    .sidebar {
        display: none;
        position: fixed;
        top: 64px;
        left: 0;
        height: calc(100vh - 64px);
        width: 260px;
        z-index: 99;
        padding-bottom: 0;
        box-shadow: 2px 0 10px rgba(0,0,0,0.1);
    }
    
    .sidebar.active {
        display: flex;
    }
    
    .mobile-menu-toggle {
        display: block;
    }

    /* 在移动设备上确保footer在底部 */
    .sidebar-footer {
        position: sticky;
        bottom: 0;
        background-color: #ffffff;
        border-top: 1px solid #eaeaea;
        padding: 12px;
    }
}

@media screen and (min-width: 769px) {
    .mobile-menu-toggle {
        display: none;
    }
}

/* 用户信息样式 */
.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.username {
    font-weight: 600;
    color: #333;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    background-color: #1a73e8;
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 14px;
    height: 36px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.btn:hover {
    background-color: #1765cc;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.btn-secondary {
    background-color: #f1f3f4;
    color: #3c4043;
    border: 1px solid #dadce0;
}

.btn-secondary:hover {
    background-color: #e8eaed;
    color: #202124;
}

/* 移动端菜单开关 */
.mobile-menu-toggle {
    background: none;
    border: none;
    color: #555;
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 10px;
    border-radius: 50%;
    transition: background-color 0.2s;
}

.mobile-menu-toggle:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

/* 内容卡片 */
.card {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    padding: 24px;
    margin-bottom: 24px;
    border: 1px solid #eaeaea;
}

.card-title {
    margin-top: 0;
    margin-bottom: 16px;
    border-bottom: 1px solid #f0f0f0;
    padding-bottom: 12px;
    font-weight: 600;
    color: #333;
}

/* 功能项目样式 */
.feature-item {
    padding: 16px;
    margin-bottom: 16px;
    background-color: #f9f9f9;
    border-radius: 8px;
    border-left: 4px solid #1a73e8;
}

.feature-title {
    font-weight: 600;
    color: #1a73e8;
    margin-bottom: 8px;
    display: block;
}

/* 代码样式 */
code {
    background-color: #f1f3f4;
    padding: 3px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
    color: #333;
}

/* 侧栏底部样式 */
.sidebar-footer {
    margin-top: auto;
    padding: 16px;
    border-top: 1px solid #eaeaea;
    background-color: #ffffff;
}

.sidebar-footer .user-info {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
}

.sidebar-footer .btn {
    width: 100%;
    margin-top: 8px;
}

/* 侧边栏收起时的底部样式 */
.sidebar-collapsed .sidebar-footer {
    padding: 12px 4px;
    text-align: center;
}

.sidebar-collapsed .sidebar-footer .username,
.sidebar-collapsed .sidebar-footer span:first-child {
    display: none;
}

.sidebar-collapsed .sidebar-footer .btn {
    padding: 8px;
    width: 40px;
    min-width: 0;
    overflow: hidden;
}