.tower { display: flex; justify-content: center; margin: 12px auto 14px; touch-action: none; cursor: pointer; }
.tower canvas { display: block; border-radius: 18px; border: 1px solid var(--line); box-shadow: 0 20px 50px -24px rgba(0, 0, 0, 0.7); }
.tip { text-align: center; color: var(--muted); font-size: 13px; margin: 0 0 10px; }