html,body{margin:0;height:100%;overflow:hidden;background:#000;touch-action:none;-webkit-user-select:none;user-select:none;font-family:-apple-system,"Hiragino Sans",sans-serif;color:#fff}
#v{position:fixed;inset:0;width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}
#c{position:fixed;inset:0;width:100%;height:100%;background:rgba(0,0,20,.28)}
.ov{z-index:10;position:fixed;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:rgba(0,0,20,.82);text-align:center;padding:24px}
.ov[hidden]{display:none}
h1{margin:0;font-size:clamp(28px,6vw,52px);line-height:1.2}
p{max-width:640px;line-height:1.7;font-size:17px}
button{font:700 20px inherit;padding:14px 36px;border:0;border-radius:14px;background:#2fd4ff;color:#002;min-width:220px}
button.sub{background:#444;color:#fff;font-size:15px;padding:8px 20px}
button:disabled{opacity:.5}
small{opacity:.7;max-width:560px}
#cc{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:50}
button{transition:transform .12s,box-shadow .12s}
button.hot{transform:scale(1.12);box-shadow:0 0 0 6px rgba(125,255,154,.8);background:#7dff9a}