/* i18n 语言切换器样式 */
#i18n-switcher {
    display: inline-flex;
    gap: 2px;
    background: rgba(255,255,255,0.1);
    border-radius: 6px;
    padding: 2px;
    margin-left: 12px;
}
.i18n-btn {
    padding: 4px 0;
    width: 42px;
    border: none;
    border-radius: 4px;
    font-size: 11px;
    cursor: pointer;
    background: transparent;
    color: inherit;
    opacity: 0.6;
    transition: all 0.2s;
    white-space: nowrap;
    text-align: center;
}
.i18n-btn:hover {
    opacity: 1;
    background: rgba(255,255,255,0.15);
}
.i18n-btn.active {
    opacity: 1;
    background: rgba(255,255,255,0.25);
    font-weight: 600;
}
/* 登录页等浅色背景下的切换器 */
.login-container #i18n-switcher {
    background: rgba(0,0,0,0.05);
}
.login-container .i18n-btn {
    color: #666;
}
.login-container .i18n-btn:hover {
    background: rgba(0,0,0,0.08);
}
.login-container .i18n-btn.active {
    background: rgba(102,126,234,0.15);
    color: #667eea;
}