:root{--bg:#0b0b10;--fg:#f4f4f8;--mut:#8b8b9a;--hot1:#ff7a18;--hot2:#ff2e63;--blue:#4d7cff;--panel:#1b1b25}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;background:var(--bg);color:var(--fg);font:16px/1.3 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;overflow:hidden;overscroll-behavior:none}
body{display:flex;flex-direction:column;height:100dvh;max-width:560px;margin:0 auto;padding:env(safe-area-inset-top) 12px env(safe-area-inset-bottom)}
header{display:flex;align-items:center;justify-content:space-between;height:52px;flex:none}
.logo{font-weight:800;font-size:20px;letter-spacing:.5px}
.logo img{display:block;height:40px;width:auto}
.logo b{background:linear-gradient(90deg,var(--hot1),var(--hot2));-webkit-background-clip:text;background-clip:text;color:transparent}
.seg{display:flex;background:var(--panel);border-radius:999px;padding:3px}
.seg button{border:0;background:none;font-size:18px;padding:5px 14px;border-radius:999px;color:inherit;opacity:.55}
.seg button.on{background:#2c2c3b;opacity:1}
#lvl{flex:none;padding:0 2px 8px}
.lvl-top{display:flex;justify-content:space-between;font-size:13px;color:var(--mut);margin-bottom:5px}
#lvlName{color:var(--fg);font-weight:700}
.bar{height:8px;border-radius:99px;background:#1f1f2a;overflow:hidden}
.bar i{display:block;height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,var(--hot1),var(--hot2));transition:width .35s}
.bar.flash i{animation:flash .7s}
@keyframes flash{50%{filter:brightness(2) saturate(1.5)}}
#stage{flex:1;min-height:0;display:flex;justify-content:center}
#stack{position:relative;height:100%;max-width:100%;aspect-ratio:3/4;touch-action:none;user-select:none;-webkit-user-select:none}
#msg{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--mut);text-align:center}
.card{position:absolute;inset:0;border-radius:22px;overflow:hidden;background:var(--c,#222);box-shadow:0 10px 30px #0009;transform-origin:50% 90%;transition:transform .22s,opacity .22s}
.card img{width:100%;height:100%;object-fit:cover;display:block;pointer-events:none;-webkit-user-drag:none}
.stamp{position:absolute;top:26px;padding:2px 14px;border:4px solid;border-radius:10px;font-weight:900;font-size:34px;letter-spacing:2px;pointer-events:none;background:#0006}
.stamp.hot{left:20px;color:#ff8a2b;transform:rotate(-14deg);opacity:var(--hot,0)}
.stamp.not{right:20px;color:#6c93ff;transform:rotate(14deg);opacity:var(--not,0)}
.rp{position:absolute;left:8px;bottom:8px;width:34px;height:34px;border:0;border-radius:50%;background:#0006;color:#fff;font-size:15px;opacity:.55}
#result{position:relative;z-index:6;flex:none;height:26px;margin:12px 0 6px;padding:0 2px;display:flex;align-items:center;justify-content:center;gap:10px;font-size:13px;color:var(--mut);opacity:0;transition:opacity .2s}
#result.show{opacity:1}
#result .rb{flex:1;max-width:46%;height:8px;border-radius:99px;background:#1f1f2a;overflow:hidden}
#result .rb i{display:block;height:100%;background:linear-gradient(90deg,var(--hot1),var(--hot2));border-radius:99px;transition:width .4s}
#result b{color:var(--fg);font-weight:700}
#ctrl{flex:none;display:flex;gap:10px;padding:0 0 10px}
#ctrl button{flex:1;height:38px;border-radius:12px;border:0;font:800 15px system-ui,sans-serif;display:flex;align-items:center;justify-content:center;gap:6px;color:#fff;transition:transform .08s}
#ctrl button:active{transform:scale(.96)}
#ctrl svg{width:19px;height:19px;fill:currentColor}
#ctrl .down svg{transform:rotate(180deg)}
#bNot{background:#1d2440;color:#8fb0ff;border:2px solid #2b3a78}
#bHot{background:linear-gradient(135deg,var(--hot1),var(--hot2))}
#toast{position:fixed;left:50%;top:96px;transform:translate(-50%,-14px);opacity:0;pointer-events:none;background:linear-gradient(135deg,var(--hot1),var(--hot2));color:#fff;font-weight:800;padding:10px 20px;border-radius:99px;box-shadow:0 8px 24px #0008;transition:.3s;z-index:5;white-space:nowrap}
#toast.show{opacity:1;transform:translate(-50%,0)}
#gate{position:fixed;inset:0;z-index:10;background:#000d;display:flex;align-items:center;justify-content:center;padding:24px}
#gate[hidden]{display:none}
#gate .box{background:var(--panel);border-radius:20px;padding:24px;max-width:380px;text-align:center}
#gate h2{margin:0 0 8px}#gate p{color:var(--mut);margin:0 0 18px}
#gate button{width:100%;height:52px;border:0;border-radius:14px;font:800 16px system-ui;color:#fff;background:linear-gradient(135deg,var(--hot1),var(--hot2))}
#gate a{display:block;margin-top:14px;color:var(--mut);font-size:14px}