/* 中英文切换UI样式 - 简洁的 "中文 | English" 格式 */
.language-switch {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto;
    padding: 4px 12px;
    background: transparent;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 13px;
    border: none;
    height: 100%; /* 确保填充容器高度 */
}

.language-switch__container {
    display: flex;
    align-items: center;
    gap: 6px;
    height: 100%; /* 确保填充容器高度 */
}

.language-switch__option {
    padding: 3px 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 13px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    background: transparent;
    border: none;
    outline: none;
    user-select: none;
    border-radius: 10px;
    line-height: 1.2; /* 确保文本垂直居中 */
}

.language-switch__option:hover {
    color: rgba(255, 255, 255, 0.9);
    background: rgba(255, 255, 255, 0.1);
}

.language-switch__option.active {
    color: #ffffff;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.2);
}

.language-switch__separator {
    color: rgba(255, 255, 255, 0.5);
    font-weight: 300;
    user-select: none;
}

/* 侧边栏采用flex布局：上部滚动目录 + 底部固定语言切换 */
.wy-nav-side {
    display: flex;
    flex-direction: column;
    height: 100vh;
    min-height: 0; /* 允许子元素正确缩放 */
}

.wy-side-scroll {
    flex: 1 1 auto;
    min-height: 0; /* 关键：使滚动区域在flex容器内可滚动 */
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.wy-nav-side .language-switch-container {
    flex: 0 0 36px;
    background: #1a1a1a; /* 深灰色背景替代蓝色 */
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    z-index: 20;
    padding: 0; /* 移除内边距，使用内部元素控制间距 */
    margin: 0;
    height: 36px; /* 固定高度确保一致性 */
    display: flex;
    align-items: center; /* 垂直居中 */
    justify-content: center; /* 水平居中 */
    box-sizing: border-box;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .language-switch {
        margin: 0;
        padding: 0 8px;
    }
    
    .language-switch__option {
        padding: 4px 8px;
        font-size: 12px;
        min-width: 40px;
    }

    .wy-nav-side .language-switch-container {
        height: 32px; /* 移动端更小的高度 */
    }
}

/* 在侧边栏中的样式调整 */
.wy-nav-side .language-switch {
    margin: 0;
    background: transparent;
    position: relative;
    padding: 0;
    width: 100%;
}

.wy-nav-side .language-switch__container {
    background: transparent;
    border: none;
    padding: 0 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 100%;
}

/* 优化语言切换按钮样式 */
.wy-nav-side .language-switch__option {
    color: #ffffff;
    background: transparent;
    border: none;
    padding: 4px 8px;
    border-radius: 0;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 11px !important;
    font-weight: 600;
    min-width: 40px;
    text-align: center;
}

.wy-nav-side .language-switch__option:hover {
    color: rgba(255, 255, 255, 0.8);
    background: transparent;
}

.wy-nav-side .language-switch__option.active {
    color: #ffffff;
    background: transparent;
    font-weight: 600;
    text-decoration: underline;
}

.wy-nav-side .language-switch__separator {
    color: rgba(255, 255, 255, 0.6);
    font-weight: 300;
    user-select: none;
    font-size: 11px;
}

/* 动画效果 */
.language-switch__option {
    transition: color 0.3s ease, font-weight 0.3s ease;
}

/* 焦点状态 */
.language-switch__option:focus {
    outline: 1px solid #666;
    outline-offset: 1px;
}

/* 禁用状态 */
.language-switch__option:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* 加载状态 */
.language-switch.loading .language-switch__option {
    pointer-events: none;
    opacity: 0.7;
}