/* ============================================================
   2-layout / footer.css
   固定帮助按钮
   来源：website-complete / styles.css L603–622
   ============================================================ */

/* ===== Help Button ===== */
.help-btn {
    position: fixed;
    right: 20px; bottom: 20px;
    width: 44px; height: 44px;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    z-index: 50;
}

.help-btn:hover { color: var(--text-primary); box-shadow: var(--shadow-md); }
.help-btn svg { width: 24px; height: 24px; flex-shrink: 0; }


@media (max-width: 768px) {
    .help-btn { display: none; }
}