/* 静态语言切换器样式 */
.language-switcher {
    position: relative;
    display: inline-block;
    margin-left: 20px;
    z-index: 100;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
      "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Noto Sans JP",
      "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

/* 默认（浅色背景）样式 */
.language-switcher .lang-current {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.12);
    border-radius: 10px;
    color: #1f2937;
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
    transition: all 0.2s ease;
}

.language-switcher .lang-current:hover {
    background: rgba(0, 0, 0, 0.08);
    border-color: rgba(0, 0, 0, 0.18);
}

.language-switcher .lang-icon {
    font-size: 18px;
}

.language-switcher .lang-name {
    font-weight: 600;
    color: #1f2937;
}

.language-switcher .lang-arrow {
    font-size: 10px;
    transition: transform 0.3s ease;
}

.language-switcher.active .lang-arrow {
    transform: rotate(180deg);
}

.language-switcher .lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    opacity: 0 !important;
    visibility: hidden !important;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 1000;
    max-height: 420px;
    overflow-y: auto;
    pointer-events: none;
}

.language-switcher.active .lang-dropdown {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0);
    pointer-events: auto;
}

.language-switcher .lang-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    text-decoration: none;
    color: #1f2937;
    transition: background 0.15s ease;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.language-switcher .lang-option:last-child {
    border-bottom: none;
}

.language-switcher .lang-option:hover {
    background: rgba(0, 0, 0, 0.04);
}

.language-switcher .lang-flag {
    font-size: 20px;
}

.language-switcher .lang-text {
    font-size: 14px;
    font-weight: 500;
}

/* 深色主题覆盖（与站点 data-theme 兼容） */
[data-theme="dark"] .language-switcher .lang-current {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: #fff;
}
[data-theme="dark"] .language-switcher .lang-name { color: #fff; }
[data-theme="dark"] .language-switcher .lang-current:hover {
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(255, 255, 255, 0.26);
}
[data-theme="dark"] .language-switcher .lang-dropdown {
    background: #2d3748;
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
}
[data-theme="dark"] .language-switcher .lang-option {
    color: #e2e8f0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
[data-theme="dark"] .language-switcher .lang-option:hover {
    background: rgba(255, 255, 255, 0.08);
}

/* 移动端适配 */
@media (max-width: 768px) {
    .language-switcher {
        margin-left: 10px;
    }
    
    .language-switcher .lang-current {
        padding: 6px 12px;
        font-size: 13px;
    }
    
    .language-switcher .lang-name {
        display: none;
    }
    
    .language-switcher .lang-dropdown {
        right: auto;
        left: 0;
        min-width: 180px;
    }
}

/* 暗色模式支持 */
@media (prefers-color-scheme: dark) {
    .language-switcher .lang-current {
        background: #2a2a2a;
        border-color: #444;
    }
    
    .language-switcher .lang-current:hover {
        background: #333;
        border-color: #4CAF50;
    }
    
    .language-switcher .lang-name {
        color: #fff;
    }
    
    .language-switcher .lang-dropdown {
        background: #2a2a2a;
        border-color: #444;
    }
    
    .language-switcher .lang-option {
        color: #fff;
        border-bottom-color: #333;
    }
    
    .language-switcher .lang-option:hover {
        background: #333;
    }
}

/* 点击外部关闭下拉菜单的脚本 */