:root{color-scheme:dark;--page: #080b19;--panel: rgba(13, 18, 34, .86);--line: rgba(255, 255, 255, .14);--text: #f7f8ff;--muted: #aeb8d0;--orange: #f58b23;--blue: #45a4ff;--start-bg: none;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{width:100%;min-height:100%;margin:0;overscroll-behavior:none}body{min-height:100dvh;overflow:hidden;background:radial-gradient(circle at 16% 8%,rgba(245,139,35,.2),transparent 28%),linear-gradient(180deg,#151b36,var(--page));color:var(--text);touch-action:none}button{border:0;color:inherit;font:inherit;cursor:pointer;-webkit-user-select:none;user-select:none}.app{width:100%;min-height:100dvh;display:grid;grid-template-rows:auto auto minmax(0,1fr) auto;gap:8px;padding:max(8px,env(safe-area-inset-top)) max(10px,env(safe-area-inset-right)) max(10px,env(safe-area-inset-bottom)) max(10px,env(safe-area-inset-left))}.hud{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) auto;gap:8px;align-items:center}.score-card{height:46px;display:flex;align-items:center;justify-content:space-between;gap:8px;padding:0 12px;border:1px solid var(--line);border-radius:8px;background:var(--panel)}.score-card span{color:var(--muted);font-size:13px;white-space:nowrap}.score-card strong{font-size:22px;line-height:1}.hud-actions{display:flex;gap:8px}.icon-button{width:46px;height:46px;border:1px solid var(--line);border-radius:8px;background:#080c19e6;font-size:20px;font-weight:900}.orientation-hint{display:none;margin:0;padding:7px 10px;border:1px solid rgba(255,210,95,.42);border-radius:8px;background:#ffd25f1f;color:#ffe8a3;text-align:center;font-size:13px}.stage-shell{position:relative;min-height:0;display:grid;place-items:center}canvas{display:block;width:min(100%,calc((100dvh - 134px) * 16 / 9));max-height:calc(100dvh - 134px);aspect-ratio:16 / 9;border:1px solid var(--line);border-radius:8px;background:#0b1024;box-shadow:0 18px 48px #00000061;touch-action:none}.overlay{position:absolute;inset:0;display:grid;place-items:center;align-content:center;gap:12px;padding:24px;text-align:center;background:linear-gradient(180deg,#060a192e,#060a19c7),var(--start-bg) center / cover}.overlay.hidden{display:none}.game-icon{width:70px;height:70px;object-fit:cover;border:2px solid rgba(255,255,255,.82);border-radius:8px;box-shadow:0 12px 30px #00000052}.overlay h1,.overlay h2{margin:0;font-size:clamp(36px,7vw,68px);line-height:1;letter-spacing:0;text-shadow:0 4px 18px rgba(0,0,0,.6)}.overlay p{max-width:720px;margin:0;color:#ffffffe6;line-height:1.55;text-shadow:0 2px 10px rgba(0,0,0,.5)}.help-text{font-size:14px}.overlay-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}.primary-button,.secondary-button{min-width:150px;height:50px;padding:0 18px;border-radius:8px;border:1px solid var(--line);font-weight:900}.primary-button{background:var(--orange);color:#201207}.secondary-button{background:#0a0f1ee0}.touch-controls{display:grid;grid-template-columns:1fr 1fr;gap:10px}.touch-button{height:clamp(58px,12dvh,84px);border-radius:8px;border:1px solid var(--line);color:#08111e;font-size:clamp(20px,4.8vw,28px);font-weight:950}.touch-button.duck{background:#ffd25f}.touch-button.jump{background:var(--blue)}button:active{transform:translateY(1px)}@media(orientation:portrait){.orientation-hint{display:block}canvas{width:100%;max-height:calc(100dvh - 188px)}.overlay{padding:18px}}@media(max-width:560px){.score-card{height:42px;padding:0 9px}.score-card span{font-size:12px}.score-card strong{font-size:18px}.icon-button{width:42px;height:42px}}