:root{color-scheme:light;--night:#172a2b;--ink:#263a39;--muted:#697b77;--cream:#f7f2e7;--paper:#fffdf7;--line:#dfe4da;--pink:#e987a3;--pink-soft:#f8d8e0;--blue:#4d83a8;--blue-soft:#d6e8ef;--leaf:#7b946f;--gold:#e6bd68}
*{box-sizing:border-box}html{background:var(--cream)}body{margin:0;background:radial-gradient(circle at 85% 5%,#f6dce0 0,transparent 28%),var(--cream);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}.shell{width:min(1080px,calc(100% - 48px));margin:auto}.site-header{height:86px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #d9ded4}.back{color:var(--ink);font-size:12px;font-weight:700;text-decoration:none}.header-actions{display:flex;gap:10px;align-items:center}.language-picker,.account-link{border:1px solid #d5ddd2;border-radius:9px;background:#fff9;color:var(--ink);padding:8px 10px;font:12px inherit}.account-link{text-decoration:none;font-weight:700;color:#39685f}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}button:focus-visible,a:focus-visible,canvas:focus-visible,select:focus-visible{outline:3px solid var(--gold);outline-offset:3px}.hero{display:grid;grid-template-columns:1.3fr .7fr;align-items:center;gap:30px;padding:49px 0 33px}.eyebrow,.section-label{margin:0 0 11px;color:#6d807a;font-size:10px;font-weight:800;letter-spacing:.17em}.hero h1{margin:0 0 13px;font-size:clamp(34px,5vw,52px);line-height:1.1;letter-spacing:-.045em}.story{max-width:600px;margin:0;color:var(--muted);font-size:14px;line-height:1.85}.hero-snakes{display:flex;flex-direction:column;align-items:flex-end;gap:13px;font-size:29px;letter-spacing:5px}.hero-snakes span{padding:10px 16px;border-radius:99px;box-shadow:0 7px 0 #273c3612}.pink-snake{background:var(--pink-soft);transform:rotate(4deg)}.blue-snake{background:var(--blue-soft);transform:rotate(-4deg);margin-right:44px}.game-layout{display:grid;grid-template-columns:275px minmax(0,1fr);gap:22px;align-items:start}.side-panel,.game-panel{border:1px solid var(--line);border-radius:22px;background:#fffdf8;box-shadow:0 13px 35px #253a3010}.side-panel{padding:22px}.snake-summary,.food-menu{padding-bottom:20px;border-bottom:1px solid var(--line);margin-bottom:20px}.current-snake{display:flex;align-items:center;gap:13px}.current-snake>span{width:54px;height:54px;border-radius:18px;display:grid;place-items:center;background:var(--pink-soft);font-size:26px}.current-snake strong,.current-snake small{display:block}.current-snake strong{font-size:15px}.current-snake small{margin-top:5px;color:var(--muted);font-size:11px;line-height:1.5}.secondary-button{width:100%;margin-top:15px;border:1px solid #ced9d0;border-radius:10px;background:#fff;color:var(--ink);padding:10px 12px;font:700 12px inherit;cursor:pointer}.secondary-button:hover{background:#f4f7f1}.food-menu>div{display:flex;gap:9px;flex-wrap:wrap}.food-chip{display:flex;align-items:center;gap:5px;background:#f2f0e8;border-radius:99px;padding:6px 9px;font-size:11px}.food-chip b{font-size:18px}.instruction{display:flex;align-items:flex-start;gap:10px;margin:12px 0;color:var(--muted);font-size:12px;line-height:1.65}.instruction b{flex:0 0 28px;height:28px;display:grid;place-items:center;border-radius:8px;background:#edf2eb;color:#486358}.safety-note{margin:14px 0 0;padding:11px 12px;border-radius:10px;background:#f6edcf;color:#716135;font-size:11px;line-height:1.6}.game-panel{padding:18px}.hud{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:13px}.hud div{padding:10px 14px;border-radius:12px;background:#eef1e9}.hud span,.hud strong{display:block}.hud span{color:var(--muted);font-size:9px;font-weight:800;letter-spacing:.13em}.hud strong{margin-top:3px;font:800 21px ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--night)}.stage-wrap{position:relative;width:min(100%,600px);margin:auto;aspect-ratio:1;border:7px solid var(--night);border-radius:20px;overflow:hidden;background:#dfe7d8;box-shadow:inset 0 0 0 1px #ffffff38,0 10px 24px #172a2b20}canvas{display:block;width:100%;height:100%;touch-action:none;user-select:none;-webkit-user-select:none}.game-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:32px;background:#172a2be6;color:#fff;backdrop-filter:blur(4px)}.game-overlay[hidden]{display:none}.overlay-icon{font-size:38px}.game-overlay h2{font-size:25px;margin:10px 0 8px}.game-overlay p{max-width:340px;margin:0 0 20px;color:#d4dfd8;font-size:13px;line-height:1.7}.game-overlay button{border:0;border-radius:12px;background:var(--gold);color:#26342e;padding:12px 27px;font:800 13px inherit;cursor:pointer}.countdown{position:absolute;inset:0;display:grid;place-items:center;background:#172a2b88;color:#fff;font:900 78px ui-monospace,monospace}.countdown[hidden]{display:none}.game-actions{display:flex;align-items:center;gap:13px;min-height:45px;padding:10px 4px 0}.game-actions button{border:0;border-radius:9px;background:var(--night);color:#fff;padding:8px 13px;font:700 11px inherit;cursor:pointer}.game-actions span{color:var(--muted);font-size:11px}.dpad{width:204px;margin:4px auto 12px;display:grid;grid-template-columns:repeat(3,60px);grid-template-rows:repeat(2,52px);gap:6px;justify-content:center}.dpad button{border:1px solid #cbd6cd;border-radius:13px;background:#fff;color:var(--night);font:800 25px inherit;box-shadow:0 3px 0 #cbd6cd;touch-action:manipulation;cursor:pointer}.dpad button:active{transform:translateY(2px);box-shadow:0 1px 0 #cbd6cd}.dpad button[data-direction=up]{grid-column:2}.dpad button[data-direction=left]{grid-column:1;grid-row:2}.dpad span{grid-column:2;grid-row:2;display:grid;place-items:center;color:#c2cec4;font-size:9px}.dpad button[data-direction=right]{grid-column:3;grid-row:2}.dpad button[data-direction=down]{grid-column:2;grid-row:3}.dpad{grid-template-rows:repeat(3,52px)}.record-line{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding:13px 5px 0;color:var(--muted);font-size:10px;line-height:1.5}.record-line strong{color:var(--ink)}.picker{position:fixed;z-index:20;inset:0;display:grid;place-items:center;padding:20px;background:#172a2bd9;backdrop-filter:blur(6px)}.picker[hidden]{display:none}.picker-card{width:min(610px,100%);border-radius:24px;background:var(--paper);padding:29px;box-shadow:0 26px 70px #0005}.picker-card h2{font-size:27px;margin:0 0 8px}.picker-card>p:not(.eyebrow){margin:0 0 21px;color:var(--muted);font-size:13px}.picker-options{display:grid;grid-template-columns:1fr 1fr;gap:14px}.picker-options button{min-height:174px;border:2px solid transparent;border-radius:18px;padding:20px;background:#f5f2eb;color:var(--ink);font:inherit;cursor:pointer}.picker-options button:first-child:hover,.picker-options button:first-child:focus-visible{border-color:var(--pink);background:#fff4f6}.picker-options button:last-child:hover,.picker-options button:last-child:focus-visible{border-color:var(--blue);background:#f1f8fb}.picker-options strong,.picker-options small{display:block}.picker-options strong{font-size:15px;margin:12px 0 7px}.picker-options small{color:var(--muted);line-height:1.5}.snake-portrait{width:66px;height:66px;margin:auto;border-radius:22px;display:grid;place-items:center;font-size:34px}.snake-portrait.pink{background:var(--pink-soft)}.snake-portrait.blue{background:var(--blue-soft);color:var(--blue);font-size:29px}footer{display:flex;justify-content:space-between;gap:15px;border-top:1px solid #d9ded4;margin-top:42px;padding:23px 0 30px;color:var(--muted);font-size:10px}
@media(max-width:820px){.game-layout{grid-template-columns:1fr}.side-panel{display:grid;grid-template-columns:1fr 1fr;gap:18px}.snake-summary,.food-menu{border:0;padding:0;margin:0}.instructions{grid-column:1/-1;border-top:1px solid var(--line);padding-top:18px}.stage-wrap{width:min(100%,560px)}}
@media(max-width:600px){.shell{width:calc(100% - 24px)}.site-header{height:72px}.account-link{padding:8px}.hero{grid-template-columns:1fr;padding:34px 4px 24px}.hero-snakes{display:none}.story{font-size:13px}.game-layout{gap:13px}.side-panel{display:block;padding:17px}.snake-summary,.food-menu{padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:16px}.instructions{border:0;padding:0}.desktop-tip{display:none}.game-panel{padding:10px;border-radius:18px}.hud{margin-bottom:9px}.hud div{padding:8px 10px}.hud strong{font-size:18px}.stage-wrap{border-width:5px;border-radius:15px}.game-overlay{padding:25px}.game-overlay h2{font-size:21px}.dpad{margin-top:1px;margin-bottom:8px;grid-template-columns:repeat(3,64px);grid-template-rows:repeat(3,48px)}.record-line{flex-direction:column;gap:3px}.picker-card{padding:22px 18px}.picker-options{grid-template-columns:1fr;gap:10px}.picker-options button{min-height:125px;display:grid;grid-template-columns:70px 1fr;grid-template-rows:auto auto;text-align:left;align-items:center}.snake-portrait{grid-row:1/3;margin:0}.picker-options strong{margin:0}.picker-options small{margin-top:4px}.picker-card h2{font-size:24px}footer{margin-top:28px;flex-wrap:wrap}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}.dpad button:active{transform:none}}
.stage-wrap{aspect-ratio:auto}canvas{height:auto;aspect-ratio:1}
.lychee-icon{position:relative;width:18px;height:18px;border-radius:50%;background:#dc6378;box-shadow:inset -3px -2px 0 #a9445b}.lychee-icon:before{content:"";position:absolute;width:7px;height:7px;border-radius:50%;background:#fff5df;left:7px;top:6px}.lychee-icon:after{content:"";position:absolute;width:7px;height:4px;border-radius:100% 0;background:#769263;right:-2px;top:-1px;transform:rotate(-25deg)}.game-actions{gap:9px}.game-actions .switch-action{background:#edf1eb;color:var(--ink);border:1px solid #ced8d0}.game-actions span{margin-left:3px}@media(max-width:600px){.game-panel{order:-1}.game-actions{flex-wrap:wrap}.game-actions span{flex:1 0 100%;margin:0}}