/* 浮动角标 - 右下角（QQ 社群 + GitHub） */
.github-footer-float {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    font-size: 11px;
    color: #666;
    transition: opacity 0.2s;
}

.footer-float-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.footer-float-item a:hover {
    opacity: 0.85;
}

@media (prefers-color-scheme: dark) {
    .github-footer-float {
        color: #a0a0a0;
    }
}

.footer-float-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
    transition: transform 0.2s;
    text-decoration: none;
    color: inherit;
}

.footer-float-link:hover {
    transform: scale(1.05);
}

@media (prefers-color-scheme: dark) {
    .footer-float-link {
        background: #3d3d3d;
        box-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
    }
}

.footer-float-link svg {
    width: 24px;
    height: 24px;
}

.github-footer-link svg {
    fill: #333;
}

.qq-footer-link svg {
    fill: #12b7f5;
}

@media (prefers-color-scheme: dark) {
    .github-footer-link svg {
        fill: #e0e0e0;
    }
    .qq-footer-link svg {
        fill: #12b7f5;
    }
}

.github-footer-update,
.footer-float-label {
    font-size: 10px;
    opacity: 0.8;
    white-space: nowrap;
}

/* 黑门浅色主题 */
body.theme-black .github-footer-float {
    color: #333;
}

body.theme-black .footer-float-link {
    background: #fff;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}

body.theme-black .github-footer-link svg {
    fill: #333;
}

body.theme-black .qq-footer-link svg {
    fill: #12b7f5;
}