:root{color-scheme:dark;--bg:#0d2229;--line:#294249;--cream:#f0efdf;--muted:#90a5a7;--green:#c5f19b;--gold:#d9bd75;--red:#f78d80;font-family:Inter,Segoe UI,Microsoft YaHei,PingFang SC,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--cream);background-image:radial-gradient(ellipse at 50% 40%,#17374070,transparent 70%)}button,a,canvas{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer;transition:background .18s,transform .18s}button:focus-visible,a:focus-visible,canvas:focus-visible{outline:2px solid var(--green);outline-offset:4px}button:active{transform:translateY(1px)}button:disabled{opacity:.45;cursor:default}.shell{max-width:720px;margin:auto;padding:0 24px}.topbar{height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line)}.identity{display:flex;gap:10px;align-items:center}.identity img{width:35px;height:35px}.identity h1{margin:0;font-size:20px;line-height:1.2;letter-spacing:2px}.identity div>span{display:block;margin-top:4px;font-size:8px;letter-spacing:1.5px;color:var(--muted)}.home-link{display:flex;gap:10px;font-size:11px;color:var(--muted);text-decoration:none}.home-link:hover,.home-link span{color:var(--green)}.game-column{width:min(520px,calc(78.788svh - 180px));min-width:min(310px,100%);max-width:100%;margin:14px auto 0;padding-bottom:14px}.scoreboard{display:grid;grid-template-columns:1fr 1fr 1fr;align-items:center;background:#173039;border:1px solid #2a444b;border-radius:12px;padding:10px 16px;margin-bottom:12px;height:68px;gap:10px}.scoreboard>div{display:flex;flex-direction:column;gap:4px;min-width:0}.scoreboard span{font-size:10px;color:var(--muted);white-space:nowrap}.scoreboard strong{font-size:23px;font-weight:650;line-height:1.1;font-variant-numeric:tabular-nums}.scoreboard .score-main strong{color:var(--green);font-size:26px}.scoreboard .next-block{border-left:1px solid var(--line);padding-left:12px;flex-direction:row;align-items:center;justify-content:space-between}.next-block canvas{width:49px;height:42px;flex-shrink:0}.playfield{position:relative;border:1px solid #30464b;border-radius:18px;background:#10272e;overflow:hidden;box-shadow:0 18px 65px #041b2345}#game{display:block;width:100%;height:auto;aspect-ratio:520/660;touch-action:none;cursor:ew-resize;-webkit-user-select:none;user-select:none}.board-topline{position:absolute;z-index:1;top:14px;left:16px;right:16px;display:flex;align-items:flex-start;justify-content:space-between;gap:12px;color:var(--muted);font-size:10px;line-height:1.6;pointer-events:none}.board-topline>span:first-child{white-space:nowrap}.board-topline i{width:5px;height:5px;border-radius:50%;background:var(--green);display:inline-block;margin-right:6px}#level-label{text-align:right;color:#b9cdcc;overflow-wrap:anywhere}.controls{display:flex;gap:9px;margin-top:12px}.controls>button{flex:1;height:42px;border-radius:9px;border:1px solid var(--line);background:transparent;color:#bacbcc;font-size:11px}.controls>button:hover{background:#203b42}.controls>button>span{font-size:17px;vertical-align:-1px;margin-right:5px;color:var(--green)}.pause-layer{position:absolute;inset:0;z-index:2;background:#0c222be6;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;flex-direction:column}.pause-mark{font-size:50px;color:var(--gold)}.pause-layer h2{font-size:20px;font-weight:500;margin:18px 0 26px}.hidden{display:none!important}.primary{padding:14px 24px;min-width:180px;border:0;border-radius:9px;background:var(--green);color:#183131;font-weight:650;font-size:13px;display:flex;align-items:center;justify-content:center;gap:30px}.primary:hover{background:#d6ffb0}dialog{width:min(420px,calc(100vw - 36px));max-height:calc(100svh - 32px);overflow:auto;border:1px solid #48625f;border-radius:23px;background:#173038;color:var(--cream);padding:38px;text-align:center;box-shadow:0 25px 100px #0008}dialog::backdrop{background:#051b24c9;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}dialog h2{font-size:25px;line-height:1.5;margin:14px 0 12px}dialog p{font-size:12px;color:#b0c3c3;line-height:1.9}dialog .primary{width:100%;margin-top:25px}.close-button{position:absolute;right:15px;top:10px;font-size:25px;border:0;background:transparent;color:var(--muted)}.dialog-kicker{font:10px monospace;letter-spacing:2px;color:var(--green)}.dialog-icon{width:100px;height:100px;border-radius:25px;transform:rotate(-7deg);box-shadow:0 15px 30px #0004;margin:14px 0}.result-score{font-size:42px;font-weight:700;color:var(--green);font-variant-numeric:tabular-nums}.secondary{background:transparent;border:0;color:var(--muted);padding:16px;font-size:12px}.danger .board-topline{color:var(--red)}@media(max-width:650px){.shell{padding:0 16px;max-width:470px}.topbar{height:60px}.identity h1{font-size:18px}.identity img{width:32px;height:32px}.home-link{font-size:10px}.game-column{width:100%;min-width:0;padding-bottom:max(16px,env(safe-area-inset-bottom))}.scoreboard{padding:10px 14px;gap:8px}.scoreboard .next-block{padding-left:10px}.scoreboard strong{font-size:22px}.scoreboard .score-main strong{font-size:25px}.scoreboard span{font-size:9px}.next-block canvas{width:43px;height:40px}.board-topline{font-size:9px;left:13px;right:13px}.controls>button{font-size:10px}}@media(max-width:350px){.shell{padding:0 10px}.scoreboard{padding:10px;gap:6px}.scoreboard .next-block{padding-left:8px}.next-block canvas{width:38px}.board-topline{font-size:8px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important}}