/* cau-noi.css – Màn chứa game cũ (iframe) và màn "Gần đúng rồi" đè lên */
.man-game-cu { background: #1a0b3d; }
.cn-iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; display: block; background: #1a0b3d; }
.cn-tai {
  position: absolute; inset: 0; z-index: 5; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 18px;
  background: radial-gradient(circle at 50% 40%, #3b2476, #1a0b3d 70%); color: #fff; text-align: center; padding: 24px;
}
.cn-tai p { margin: 0; font-size: 26px; font-weight: 800; max-width: 560px; }
.cn-tai-hinh { width: 150px; height: 150px; object-fit: contain; border-radius: 32px; animation: cn-nhun 1.4s ease-in-out infinite; }
@keyframes cn-nhun { 0%, 100% { transform: translateY(0) scale(1); } 50% { transform: translateY(-10px) scale(1.04); } }
@media (prefers-reduced-motion: reduce) { .cn-tai-hinh { animation: none; } }
#cn-phan-hoi { z-index: 20; }
#cn-phan-hoi .ph-hinh-giai svg { max-width: 100%; height: auto; }