/* 语言推荐横幅 - 样式参考 cookie-banner 但显示在顶部 */
.lang-rec-banner {
    position: fixed;
    top: var(--nav-height, 48px);
    left: 0;
    right: 0;
    width: 100%;
    box-sizing: border-box;
    background: var(--layer-blur-bg-strong);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    box-shadow: var(--shadow-sm); /* 阴影方向改变 */
    border-bottom: 1px solid var(--color-border); /* 边框改为底部 */
    padding: 12px 0;
    z-index: 999;
    display: none;
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Icons", "Helvetica Neue", Helvetica, Arial, sans-serif;
    overflow-x: hidden;
}

html[data-lang-rec-processed="1"] .lang-rec-banner {
    display: none !important;
}

.lang-rec-banner.show {
    display: block;
    animation: lang-rec-slide-down 0.3s cubic-bezier(0.28, 0.11, 0.32, 1); /* 改为从上滑下 */
}

html:has(.lang-rec-banner.show) {
    --lang-rec-banner-height: 60px;
}

.lang-rec-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-sizing: border-box;
}

.lang-rec-content-text {
    flex: 1;
    margin-right: 24px;
}

/* RTL: mirror banner content row and spacing */
html[dir="rtl"] .lang-rec-content { flex-direction: row-reverse; }
html[dir="rtl"] .lang-rec-content-text { margin-right: 0; margin-left: 24px; }

.lang-rec-message {
    margin: 0;
    font-size: 14px;
    line-height: 1.4;
    color: var(--color-text);
    letter-spacing: -0.016em;
}

.lang-rec-buttons {
    display: flex;
    gap: 12px;
}

.lang-rec-btn {
    border: none;
    border-radius: var(--radius-full);
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.28, 0.11, 0.32, 1);
    white-space: nowrap;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Smaller rounded corners for language recommendation actions */
#switchToRecommendedLanguage,
#dismissLanguageRecommendation {
    border-radius: 8px;
}
/* Arabic typography */
html[dir="rtl"] .lang-rec-message,
html[dir="rtl"] .lang-rec-btn { letter-spacing: 0; }

.lang-rec-btn-primary {
    background: var(--color-accent);
    color: var(--color-text);
}

html[data-theme="light"] #switchToRecommendedLanguage.lang-rec-btn-primary {
    color: #ffffff;
}

.lang-rec-btn-primary:hover {
    background: var(--color-accent-strong);
    transform: translateY(-1px);
}

.lang-rec-btn-secondary {
    background: var(--surface-hover);
    color: var(--color-text);
}

.lang-rec-btn-secondary:hover {
    background: var(--surface-active);
    transform: translateY(-1px);
}

/* 从上滑下的动画 */
@keyframes lang-rec-slide-down {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

/* 确保所有子元素也使用border-box */
.lang-rec-banner *,
.lang-rec-banner *::before,
.lang-rec-banner *::after {
    box-sizing: border-box;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .lang-rec-content {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .lang-rec-content-text {
        margin-right: 0;
        margin-bottom: 12px;
        width: 100%;
    }
    
    .lang-rec-buttons {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .lang-rec-buttons {
        flex-direction: column;
        gap: 8px;
    }
    
    .lang-rec-btn {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 768px) {
    html:has(.lang-rec-banner.show) {
        --lang-rec-banner-height: 90px;
    }
}

@media (max-width: 480px) {
    html:has(.lang-rec-banner.show) {
        --lang-rec-banner-height: 120px;
    }
}