.game-screen{width:min(1280px,calc(100% - 64px));flex:1;align-self:center;padding:24px 0 32px}.game-toolbar{display:grid;grid-template-columns:1fr auto;align-items:center;gap:16px;margin-bottom:14px}.game-back-button{justify-self:start;min-height:40px;padding:8px 12px 8px 0;border:0;background:transparent;color:#a9b8bb;cursor:pointer;font-size:14px;font-weight:600;transition:color .14s ease}.game-back-button:hover{color:var(--accent)}.wall-count{justify-self:end;color:#a6b3b6;font-size:13px;font-variant-numeric:tabular-nums}.game-notice{display:flex;align-items:flex-start;gap:10px;margin-bottom:14px;padding:10px 14px;border:1px solid var(--line);border-radius:10px;background:#10191ebd;color:#b5c2c5;box-shadow:0 8px 26px #0000001f;backdrop-filter:blur(20px) saturate(145%);-webkit-backdrop-filter:blur(20px) saturate(145%);font-size:13px;line-height:1.55}.notice-icon{display:grid;width:18px;min-width:18px;height:18px;place-items:center;border-radius:6px;background:#69baff24;color:var(--accent);font-size:12px;font-weight:700;line-height:1}.notice-copy{min-width:0;flex:1 1 420px}.notice-content{display:flex;min-width:0;flex-wrap:wrap;align-items:baseline;gap:2px 10px}.notice-content strong{flex:0 0 auto;color:#e8f4f3;white-space:nowrap}.mahjong-table{position:relative;isolation:isolate;display:flex;min-height:600px;flex-direction:column;justify-content:space-between;gap:16px;padding:clamp(16px,2.4vw,24px);border:1px solid rgb(131 190 255 / 54%);border-radius:18px;background:linear-gradient(145deg,rgb(255 225 190 / 14%),transparent 40%,rgb(0 0 0 / 52%) 100%),url(../assets/wood.jpg) center / 340px auto;box-shadow:0 38px 80px #00000094,0 9px 0 -3px #171216,0 0 0 5px #71b7ff14,0 0 42px #378eff29,inset 0 2px #ffe5c64d,inset 0 -4px #0c0b0dbd,inset 0 -20px 34px #0000004d;color:#fff}.mahjong-table:before{position:absolute;z-index:0;top:10px;right:10px;bottom:10px;left:10px;overflow:hidden;border:1px solid rgb(169 209 255 / 25%);border-radius:11px;background:url(../assets/felt.jpg) center / 220px auto,radial-gradient(ellipse at 50% 42%,rgb(96 170 245 / 42%),transparent 63%),linear-gradient(145deg,#2a5f92,#123352 60%,#0c2236);background-blend-mode:overlay,normal,normal;box-shadow:inset 0 2px #cae4ff29,inset 0 -16px 30px #00000042,0 0 0 1px #060d1399;content:"";pointer-events:none}.mahjong-table:after{position:absolute;z-index:0;top:0;right:0;bottom:0;left:0;border-radius:inherit;background:radial-gradient(ellipse at 50% 43%,rgb(87 181 255 / 18%),rgb(53 135 222 / 8%) 24%,transparent 53%),radial-gradient(ellipse at 50% 43%,transparent 36%,rgb(0 0 0 / 34%) 100%),linear-gradient(155deg,rgb(255 255 255 / 3%),transparent 34%);content:"";pointer-events:none}.opponent-top,.table-middle,.player-area{position:relative;z-index:1}.table-icons{position:absolute;z-index:6;top:14px;right:14px;display:grid;gap:8px}.table-icons button{display:grid;width:44px;height:44px;place-items:center;padding:0;border:2px solid #8fb4dc;border-radius:8px;background:linear-gradient(180deg,#3b5f8c,#1b3350);box-shadow:inset 0 1px #ffffff59,0 3px 6px #0000007f;color:#fff;cursor:pointer;font-size:22px;font-weight:800;line-height:1}.table-icons button small{margin-top:-10px;font-size:10px}.table-icons button.is-off{border-color:#7a7f88;background:linear-gradient(180deg,#5a5f68,#2c3036);color:#aab0ba}.table-icons button:hover{filter:brightness(1.15)}.table-panel{position:absolute;z-index:7;top:14px;right:70px;width:min(420px,70%);padding:14px 16px;border:2px solid #8fb4dc;border-radius:10px;background:#060e1af2;box-shadow:0 14px 34px #000000a6;font-size:13px;line-height:1.6;text-align:left}.table-panel h3{margin:0 0 6px;font-size:16px}.table-panel ul{margin:6px 0;padding-left:18px}.table-panel-note{color:#9fb0c4;font-size:12px}.table-panel-close{position:absolute;top:6px;right:8px;border:0;background:transparent;color:#fff;cursor:pointer;font-size:20px}.table-panel-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px}.table-panel-row button{padding:4px 12px;border:1px solid #8fb4dc;border-radius:6px;background:#1b3350;color:#fff;cursor:pointer}.table-panel-row button.is-on{background:#3b7bd1}.opponent-top{display:flex;min-width:0;justify-content:center}.opponent-top .opponent-card{width:min(540px,65%)}.table-middle{display:grid;min-height:0;flex:1 1 auto;grid-template-columns:minmax(0,.72fr) minmax(0,2.4fr) minmax(0,.72fr);align-items:stretch;gap:8px}.table-middle>div:not(.table-center){min-width:0;min-height:0}.table-middle>div:not(.table-center) .opponent-card{height:100%}.opponent-card{min-width:0;overflow:hidden;padding:12px;border:1px solid rgb(183 216 255 / 17%);border-radius:12px;background:linear-gradient(145deg,rgb(236 246 255 / 7%),transparent 48%),#060e1899;box-shadow:inset 0 1px #ffffff1f,0 12px 28px #0000003d;backdrop-filter:blur(18px) saturate(145%);-webkit-backdrop-filter:blur(18px) saturate(145%);transition:border-color .18s ease,background-color .18s ease,box-shadow .18s ease}.opponent-card:hover{border-color:#83beff57;background:linear-gradient(145deg,rgb(236 246 255 / 9%),transparent 48%),#060e18ad;box-shadow:inset 0 1px #ffffff24,0 14px 30px #00000047,0 0 20px #378eff14}.opponent-heading,.player-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.opponent-heading{margin-bottom:10px;font-size:15px;font-weight:700}.opponent-name{display:inline-flex;min-width:0;align-items:center;gap:6px}.opponent-score{flex:0 0 auto;padding:3px 7px;border:1px solid rgb(153 198 255 / 20%);border-radius:999px;background:#a4cdff14;color:#c1d9fa;font-size:.82em;font-variant-numeric:tabular-nums;font-weight:600}.opponent-left,.opponent-right{display:flex;flex-direction:column}.opponent-top .tile-back{transform:rotate(180deg)}.opponent-left .tile-back{transform:rotate(90deg)}.opponent-right .tile-back{transform:rotate(-90deg)}.tile-backs{display:flex;min-height:33px;gap:2px;overflow:hidden}.meld-row{--mw: 30px;--mh: 41px;display:flex;flex-wrap:wrap;align-items:flex-end;gap:8px;margin-top:8px}.meld-group{display:flex;align-items:flex-end;gap:1px}.meld-tile{position:relative;flex:none;width:var(--mw);height:var(--mh)}.meld-tile.is-landscape{width:var(--mh);height:var(--mw)}.meld-tile .mahjong-tile{position:absolute;top:50%;left:50%;width:var(--mw);min-width:var(--mw);height:var(--mh);font-size:13px;transform:translate(-50%,-50%) rotate(calc(var(--meld-base, 0deg) + var(--meld-extra, 0deg)))}.meld-pos-top{--meld-base: 180deg;flex-direction:row-reverse}.meld-pos-top .meld-group{flex-direction:row-reverse}.meld-pos-left,.meld-pos-right{--mw: 24px;--mh: 34px;flex-direction:column;flex-wrap:nowrap;align-items:flex-start}.meld-pos-left{--meld-base: 90deg}.meld-pos-right{--meld-base: -90deg;flex-direction:column-reverse}.meld-pos-left .meld-group{flex-direction:column;align-items:flex-start}.meld-pos-right .meld-group{flex-direction:column-reverse;align-items:flex-start}.meld-corner{position:absolute;display:flex;min-width:0}.meld-corner-tl{top:0;left:0}.meld-corner-tr{top:0;right:0}.meld-corner-bl{bottom:0;left:0}.meld-corner-br{right:0;bottom:0}.meld-corner .meld-pos-left,.meld-corner .meld-pos-right{flex-direction:row;flex-wrap:nowrap;align-items:flex-start}.meld-corner .meld-pos-right{flex-direction:row-reverse}.meld-corner .meld-row{--mw: var(--river-tile-w);--mh: var(--river-tile-h);margin:0;gap:6px}.meld-corner .meld-pos-left,.meld-corner .meld-pos-right,.meld-corner .meld-pos-top{--mw: var(--river-tile-w);--mh: var(--river-tile-h)}.meld-corner .mahjong-tile{border-radius:2px;box-shadow:0 1px #dfe9df,0 2px #2f7d62,0 3px #226049,0 5px 6px #00000085;font-size:9px}.player-melds{margin:0 5px 6px}.tile-back{width:18px;min-width:13px;height:30px;border:2px solid #b3d6d1;border-radius:3px;background:repeating-linear-gradient(45deg,transparent,transparent 3px,rgb(255 255 255 / 25%) 3px,rgb(255 255 255 / 25%) 5px),#34766d;box-shadow:inset 0 0 0 1px #03171640,0 1px 3px #00000047}.river-panel{--river-tile-rot: 0deg;display:flex;min-width:0}.river-left{--river-tile-rot: 90deg}.river-right{--river-tile-rot: -90deg}.river-tiles{display:grid}.river-top .river-tiles,.river-bottom .river-tiles{grid-template-columns:repeat(6,var(--river-cell-w));grid-auto-rows:var(--river-cell-h);min-height:calc(var(--river-cell-h) * 3)}.river-top .river-tiles{transform:rotate(180deg)}.river-top .river-slot,.river-bottom .river-slot{grid-column:calc(var(--c) + 1);grid-row:calc(var(--r) + 1)}.river-left .river-tiles,.river-right .river-tiles{grid-template-rows:repeat(6,var(--river-cell-w));grid-auto-columns:var(--river-cell-h);min-width:calc(var(--river-cell-h) * 3)}.river-left .river-tiles{direction:rtl}.river-left .river-slot{grid-column:calc(var(--r) + 1);grid-row:calc(var(--c) + 1)}.river-right .river-slot{grid-column:calc(var(--r) + 1);grid-row:calc(6 - var(--c))}.river-slot{display:grid;min-width:0;min-height:0;place-items:center}.river-panel .mahjong-tile{width:var(--river-tile-w);min-width:var(--river-tile-w);height:var(--river-tile-h);transform:rotate(var(--river-tile-rot));border-radius:2px;box-shadow:0 1px #dfe9df,0 2px #2f7d62,0 3px #226049,0 5px 6px #00000085;filter:none;transition:box-shadow .15s ease,transform .15s ease}.river-panel .mahjong-tile:hover{box-shadow:0 1px #dfe9df,0 2px #2f7d62,0 3px #226049,0 5px 8px #0000008f,0 0 8px #52a6ff73}.river-panel .mahjong-tile .red-mark{top:1px;left:1px;font-size:5px}.river-panel .mahjong-tile.is-riichi-discard{z-index:1;transform:rotate(calc(var(--river-tile-rot) + 90deg)) scale(.85);box-shadow:0 1px #dfe9df,0 2px #2f7d62,0 3px #226049,0 5px 6px #00000085,0 0 10px #52a6ffb3}.river-slot.is-latest{animation:discard-drop .26s cubic-bezier(.2,.9,.3,1.2)}@keyframes discard-drop{0%{opacity:0;transform:translateY(-14px) scale(1.5)}to{opacity:1;transform:none}}.call-effect{position:absolute;z-index:20;padding:2px 26px;color:#fff;font-size:clamp(28px,5.5vh,56px);font-weight:900;letter-spacing:.2em;pointer-events:none;text-shadow:0 0 14px currentcolor,0 3px 0 rgb(0 0 0 / 70%);background:linear-gradient(90deg,transparent,rgb(0 0 0 / 62%) 22%,rgb(0 0 0 / 62%) 78%,transparent);animation:call-effect-pop 1.3s ease-out forwards}.call-effect-call{color:#7fd0ff}.call-effect-riichi{color:#ffd66b}.call-effect-win{color:#ff6a55;font-size:clamp(44px,9vh,96px)}.call-effect-center{top:50%;left:50%;margin:0;--fx-x: -50%;--fx-y: -50%}.call-effect-top{top:4%;left:50%;--fx-x: -50%;--fx-y: 0}.call-effect-bottom{bottom:4%;left:50%;--fx-x: -50%;--fx-y: 0}.call-effect-left{top:50%;left:4%;--fx-x: 0;--fx-y: -50%}.call-effect-right{top:50%;right:4%;--fx-x: 0;--fx-y: -50%}@keyframes call-effect-pop{0%{opacity:0;transform:translate(var(--fx-x),var(--fx-y)) scale(2.2)}15%{opacity:1;transform:translate(var(--fx-x),var(--fx-y)) scale(1)}75%{opacity:1;transform:translate(var(--fx-x),var(--fx-y)) scale(1)}to{opacity:0;transform:translate(var(--fx-x),var(--fx-y)) scale(.96)}}@media(prefers-reduced-motion:reduce){.river-slot.is-latest,.call-effect{animation-duration:1ms}}.river-slot.is-latest .mahjong-tile{z-index:2;animation:latest-discard-pulse 1.1s ease-in-out infinite alternate;outline:2px solid #ffd66b;outline-offset:1px}@keyframes latest-discard-pulse{0%{box-shadow:0 1px #dfe9df,0 2px #2f7d62,0 3px #226049,0 5px 6px #00000085,0 0 6px #ffd66b66}to{box-shadow:0 1px #dfe9df,0 2px #2f7d62,0 3px #226049,0 5px 6px #00000085,0 0 16px #ffd66bf2}}.mahjong-tile{position:relative;display:inline-flex;width:38px;min-width:38px;height:52px;align-items:center;justify-content:center;border:0;border-radius:0;background-color:#f4f1e6;background-position:center;background-repeat:no-repeat;background-size:100% 100%;line-height:1}.mahjong-tile:after{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:inherit;background:linear-gradient(135deg,rgb(255 255 255 / 22%),transparent 34%);content:"";pointer-events:none}.mahjong-tile.is-interactive{cursor:pointer;transition:transform .13s ease,border-color .13s ease,box-shadow .13s ease}.mahjong-tile.is-interactive:hover{transform:translateY(-4px);filter:brightness(1.05)}.mahjong-tile.is-selected{transform:translateY(-9px);outline:2px solid var(--accent);outline-offset:-2px;filter:drop-shadow(0 4px 5px rgb(0 0 0 / 24%))}.red-mark{position:absolute;top:3px;left:2px;padding:1px 2px;border-radius:2px;background:#ffffffe5;color:#b63d32;font-family:sans-serif;font-size:8px;font-weight:700}.table-center{--wall-t: 24px;--wall-unit: 15px;position:relative;isolation:isolate;display:flex;min-width:0;min-height:220px;align-items:stretch;justify-content:center;padding:var(--wall-t);color:#ffffffeb;text-align:center}.table-center>.wall-stack{position:absolute;z-index:0;border-radius:2px;pointer-events:none;transition:width .4s ease,height .4s ease}.wall-stack-top,.wall-stack-bottom{left:50%;width:calc((100% - 2 * var(--wall-t)) * var(--wall-fill));height:calc(var(--wall-t) - 3px);transform:translate(-50%);background:repeating-linear-gradient(90deg,transparent 0 calc(var(--wall-unit) - 1px),rgb(0 0 0 / 38%) calc(var(--wall-unit) - 1px) var(--wall-unit)),linear-gradient(180deg,#fbfdf8 0,#fbfdf8 30%,#cfd8cc 30%,#cfd8cc 36%,#6fd3ab 36%,#6fd3ab 48%,#36a07a 48%,#36a07a 82%,#1d5a43 82%,#1d5a43 94%,#0e2c20 94%);border-radius:3px;box-shadow:0 4px 5px #0009,0 9px 12px #00000059}.wall-stack-top{top:0}.wall-stack-bottom{bottom:0}.wall-stack-left,.wall-stack-right{top:50%;width:calc(var(--wall-t) - 3px);height:calc((100% - 2 * var(--wall-t)) * var(--wall-fill));transform:translateY(-50%);background:repeating-linear-gradient(180deg,transparent 0 calc(var(--wall-unit) - 1px),rgb(0 0 0 / 38%) calc(var(--wall-unit) - 1px) var(--wall-unit)),linear-gradient(90deg,#fbfdf8 0,#fbfdf8 30%,#cfd8cc 30%,#cfd8cc 36%,#6fd3ab 36%,#6fd3ab 48%,#36a07a 48%,#36a07a 82%,#1d5a43 82%,#1d5a43 94%,#0e2c20 94%);border-radius:3px;box-shadow:0 4px 5px #0009,0 9px 12px #00000059}.wall-stack-left{left:0}.wall-stack-right{right:0;transform:translateY(-50%) scaleX(-1)}.table-center:before{position:absolute;z-index:-1;top:20%;right:5%;bottom:20%;left:5%;border-radius:50%;background:radial-gradient(ellipse,rgb(82 174 255 / 24%),rgb(34 91 169 / 14%) 42%,transparent 72%);content:"";filter:blur(15px);animation:table-light-drift 9s ease-in-out infinite alternate;pointer-events:none}.table-center>*{position:relative;z-index:1}.river-board{position:relative;--river-tile-w: clamp(25px, 4.28vh, 60px);--river-tile-h: calc(var(--river-tile-w) * 52 / 38);--river-cell-w: calc(var(--river-tile-w) + 3px);--river-cell-h: calc(var(--river-tile-h) + 5px);display:grid;width:100%;min-width:0;min-height:0;grid-template:"tl top tr" auto "left info right" auto "bl bottom br" auto / minmax(0,1fr) auto minmax(0,1fr);align-content:center;align-items:center;gap:2px}.river-top{grid-area:top;align-self:end;justify-self:center}.river-left{grid-area:left;justify-self:end}.river-right{grid-area:right;justify-self:start}.river-bottom{grid-area:bottom;align-self:start;justify-self:center}.table-center-info{display:grid;min-width:0;align-content:center;align-items:center;justify-items:center;grid-template:"st st st" auto "sl core sr" auto "sb sb sb" auto / auto 1fr auto;gap:2px 4px;grid-area:info;padding:5px 6px;border:4px solid #4a5568;border-radius:8px;background:linear-gradient(145deg,rgb(255 255 255 / 5%),transparent 50%),#05080d;box-shadow:0 0 0 1px #0b0f16,0 0 0 3px #bed6f561,0 0 0 5px #11161e,0 12px 26px #000000a6,inset 0 3px #ffffff38,inset 0 -3px #000000b3,inset 0 0 18px #000000e5}.center-core{display:grid;grid-area:core;justify-items:center;gap:4px}.center-score{display:flex;align-items:baseline;justify-content:center;gap:6px;padding:1px 8px;border-radius:3px;background:#07090d;box-shadow:inset 0 0 0 1px #ffffff14;color:#c4d6eb;font-variant-numeric:tabular-nums;white-space:nowrap}.center-score-wind{color:#ffd66b;font-size:30px;font-weight:900;line-height:1;text-shadow:0 0 6px rgb(255 190 60 / 90%),0 0 16px rgb(255 160 40 / 70%)}.center-score-wind.is-dealer{color:#ff5a4a;text-shadow:0 0 6px rgb(255 70 50 / 95%),0 0 18px rgb(255 50 30 / 80%)}.center-score-name:empty{display:none}.center-score-name{font-size:10px}.center-score-name strong{margin-left:4px;color:#ff8d8d}.center-score-value{color:#7dff9a;font-family:Consolas,Courier New,monospace;font-size:17px;font-weight:400;letter-spacing:.08em;text-shadow:0 0 6px rgb(60 255 120 / 55%)}.center-score.is-riichi .center-score-value{color:#ffe08a}.center-score-top{grid-area:st;transform:rotate(180deg)}.center-score-bottom{grid-area:sb}.center-score-left,.center-score-right{flex-direction:column;gap:2px;padding:8px 1px;writing-mode:vertical-rl}.center-score-left{grid-area:sl;transform:rotate(180deg)}.center-score-right{grid-area:sr}.round-label{padding:3px 10px;border:1px solid rgb(142 195 255 / 30%);border-radius:4px;background:#071322b8;color:#fff;font-size:14px;font-weight:700;letter-spacing:.035em}.wall-remaining{color:#ff4a3d;font-family:Consolas,Courier New,monospace;font-size:38px;font-weight:700;line-height:1;text-shadow:0 0 14px rgb(255 60 40 / 80%);font-variant-numeric:tabular-nums}.player-info-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.player-info-row .game-message{flex:1 1 auto;min-width:0}.round-meta{display:flex;flex:0 0 auto;align-items:center;gap:8px;margin-bottom:7px;font-size:12px}.pot-count{padding:3px 8px;border:1px solid rgb(174 207 255 / 16%);border-radius:999px;background:#07132285;color:#c4d6eb;font-variant-numeric:tabular-nums}.dora-indicators{display:inline-flex;align-items:center;gap:3px}.dora-indicators .mahjong-tile{width:20px;min-width:20px;height:27px;font-size:9px}.center-divider{width:min(200px,70%);height:1px;background:#b4d7ff38}.table-center p{margin:0;font-size:14px}.table-center-info p{color:#bdd2e8}.player-area{padding:16px 18px 14px;border:1px solid rgb(173 207 255 / 22%);border-radius:15px;background:linear-gradient(145deg,rgb(240 247 255 / 9%),transparent 42%),#070f1ac7;box-shadow:0 22px 44px #0000005c,0 0 24px #378eff12,inset 0 1px #ffffff24;color:#f1f7f7;backdrop-filter:blur(24px) saturate(155%);-webkit-backdrop-filter:blur(24px) saturate(155%)}.player-heading{margin-bottom:16px}.player-heading h2{display:inline;margin:0 10px 0 0;font-size:18px;letter-spacing:.01em}.player-heading>div:first-child>span{color:#a8b8ba;font-size:14px}.player-heading>div:first-child>.player-score{display:inline-block;margin-left:10px;padding:4px 9px;border:1px solid rgb(105 186 255 / 30%);border-radius:999px;background:#69baff1f;color:#d9ecff;font-size:13px;font-weight:700;font-variant-numeric:tabular-nums}.player-heading>div:first-child>.hand-count{display:inline-block;padding:3px 7px;border-radius:6px;background:#ffffff0f;color:#a8b8ba;font-size:12px;font-variant-numeric:tabular-nums}.riichi-mark{display:inline-block;margin-left:8px;padding:3px 7px;border-radius:5px;background:var(--accent);box-shadow:0 0 14px #69baff4d;color:#071421;font-size:12px;line-height:1.4}.player-hand-row{display:flex;align-items:center;gap:12px}.player-hand-row>.player-hand{flex:1 1 auto;min-width:0}.player-actions{display:flex;flex:0 0 auto;flex-wrap:wrap;min-height:0;align-items:center;justify-content:flex-end;gap:10px}.draw-button,.discard-button,.riichi-button{min-width:112px;min-height:48px;padding:8px 18px;border:1px solid transparent;border-radius:11px;cursor:pointer;font-size:15px;font-weight:700;transition:transform .14s ease,background-color .14s ease,box-shadow .14s ease}.draw-button{background:var(--accent);color:#071421;box-shadow:0 0 0 1px #e0f2ff47 inset,0 4px 18px #378eff3d}.draw-button:hover:not(:disabled){transform:translateY(-1px);background:var(--accent-hover);box-shadow:0 0 0 1px #e0f2ff5c inset,0 7px 24px #378eff57}.discard-button{background:var(--accent);color:#071421;box-shadow:0 4px 18px #378eff3d}.discard-button:hover:not(:disabled){transform:translateY(-1px);background:var(--accent-hover)}.riichi-button{border-color:#ffffff2e;background:#ffffff1a;color:#ecf4f3}.riichi-button:hover:not(:disabled){transform:translateY(-1px);border-color:#69baff75;background:#69baff21;color:var(--accent)}.draw-button:disabled,.discard-button:disabled,.riichi-button:disabled{cursor:not-allowed;opacity:.55}.player-hand{display:flex;min-height:70px;align-items:flex-end;gap:1px;overflow-x:auto;padding:10px 8px 12px;border:1px solid rgb(180 215 255 / 12%);border-radius:10px;background:linear-gradient(180deg,rgb(255 255 255 / 3%),transparent),#030a1361;box-shadow:inset 0 2px 8px #0000003d,0 1px #ffffff0f}.drawn-tile-slot{display:flex;margin-left:clamp(8px,1.4vw,16px)}.player-hand .mahjong-tile{width:clamp(38px,4.6vw,56px);min-width:clamp(38px,4.6vw,56px);height:clamp(55px,5.8vw,72px);font-size:clamp(14px,1.7vw,19px);border-radius:4px;box-shadow:0 1px #f3f7ef,0 4px #3aa07a,0 7px #1c5441,0 10px 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0;color:var(--muted);font-size:14px;line-height:1.7}.back-button{display:inline-flex;align-items:center;gap:7px;min-height:36px;margin:0 0 24px;padding:6px 8px 6px 0;border:0;background:transparent;color:#a8b4b8;cursor:pointer;font-size:13px;font-weight:550}.back-button:hover{color:var(--accent)}.content-card{padding:clamp(24px,4vw,32px);border-radius:16px}.content-card h2{margin:0;color:var(--ink);font-size:16px;font-weight:620}.level-picker{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;margin-top:16px}.level-option{min-height:56px;border:1px solid var(--line);border-radius:10px;background:#ffffff0a;color:#cbd4d6;cursor:pointer;font-size:18px;font-weight:600}.level-option:hover{border-color:#69baff7a}.level-option.is-selected{border-color:var(--accent);background:#69baff21;color:var(--accent);box-shadow:0 0 0 2px #69baff24}.helper-text,.empty-note{color:var(--muted);font-size:13px;line-height:1.7}.notice-box{margin-top:24px;padding:16px;border:1px solid var(--line);border-radius:12px;background:#ffffff0a;color:#b1bdc0;font-size:13px;line-height:1.7}.wide-button{width:100%;min-height:48px;margin-top:20px;border-radius:10px;cursor:pointer;font-size:14px;font-weight:620}.stats-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.stat-card{display:grid;min-height:132px;align-content:space-between;gap:20px;padding:20px;border:1px solid var(--line);border-radius:13px;background:#ffffff0a;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);text-align:left}.stat-card span{color:var(--muted);font-size:13px;font-weight:550}.stat-card strong{color:var(--ink);font-size:28px;font-weight:650;letter-spacing:-.035em;font-variant-numeric:tabular-nums}.empty-note{margin:16px 0 0}.danger-button{width:auto;min-height:40px;margin-top:24px;padding:0 12px;border-color:var(--line);color:#a8b4b8;font-size:12px;font-weight:550}.danger-button:hover{border-color:#e2f5f43d;background:#ffffff12}.guide-list{display:grid;gap:0}.guide-item{padding:20px 0;border-bottom:1px solid var(--line)}.guide-item:first-child{padding-top:0}.guide-item:last-child{padding-bottom:0;border-bottom:0}.guide-item h2{color:var(--ink);font-size:14px;font-weight:620}.guide-item p{margin:6px 0 0;color:var(--muted);font-size:13px;line-height:1.75}.settings-list{display:grid;gap:24px}.setting-group{margin:0;padding:0;border:0}.setting-group legend{margin-bottom:12px;color:var(--ink);font-size:14px;font-weight:620}.segmented-control{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.segmented-control button{min-height:44px;border:1px solid var(--line);border-radius:9px;background:#ffffff0a;cursor:pointer;color:#bbc6c9;font-size:13px;font-weight:550}.segmented-control button.is-selected{border-color:var(--accent);background:#69baff1f;color:var(--accent);font-weight:620}.setting-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:24px;border-top:1px solid var(--line)}.setting-row h2{margin:0;color:var(--ink);font-size:14px;font-weight:620}.setting-row p{margin:6px 0 0;color:var(--muted);font-size:12px;line-height:1.6}.toggle-switch{display:flex;width:44px;min-width:44px;height:26px;align-items:center;padding:3px;border:0;border-radius:999px;background:#485359;cursor:pointer}.toggle-switch span{width:20px;height:20px;border-radius:50%;background:#fff;box-shadow:0 1px 3px #0000002e;transition:transform .16s ease}.toggle-switch.is-on{background:var(--accent)}.toggle-switch.is-on span{transform:translate(18px)}.app-footer{display:flex;justify-content:space-between;gap:12px;padding:16px max(32px,calc((100vw - 1120px)/2));border-top:1px solid var(--line);color:#77868c;font-size:11px}@media(min-width:761px){.app-shell.is-game-active{height:100dvh;min-height:0;overflow:hidden;background:radial-gradient(ellipse at 50% 72%,rgb(18 82 150 / 13%),transparent 38rem),#080d12}.app-shell.is-game-active .top-bar{min-height:60px}.app-shell.is-game-active .app-footer{display:none}}@media(min-width:761px)and (max-height:700px){.app-shell.is-game-active{height:auto;min-height:100dvh;overflow-x:hidden;overflow-y:auto}}.storage-alert{width:min(1120px,calc(100% - 48px));margin:16px auto 0;padding:12px 16px;border:1px solid rgb(226 245 244 / 16%);border-radius:10px;background:#ffffff0f;color:#c2cccf;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);font-size:13px;line-height:1.6}:root[data-font-size=large]{zoom:1.125}:root[data-font-size=extra-large]{zoom:1.25}@media(max-width:820px){.home-screen{width:min(600px,calc(100% - 48px));grid-template-columns:1fr;gap:32px;padding:40px 0 48px}.welcome-panel{padding:8px 0}.welcome-panel h1{font-size:clamp(36px,7vw,48px)}.welcome-copy{margin-top:16px;font-size:15px}.menu-panel{padding:24px}}@media(max-width:540px){.top-bar{min-height:60px;padding:0 16px}.brand-button{gap:10px;font-size:15px}.top-bar-caption{gap:6px;font-size:11px}.home-screen,.content-screen{width:calc(100% - 32px)}.menu-panel{padding:20px;border-radius:14px}.menu-button{min-height:68px;grid-template-columns:40px 1fr 20px;gap:12px;padding:10px}.menu-button strong{font-size:13px}.menu-button small{font-size:11px}.content-screen{padding-top:28px;padding-bottom:40px}.stats-grid{grid-template-columns:1fr;gap:8px}.stat-card{min-height:80px;grid-template-columns:1fr auto;align-items:center;gap:12px;padding:16px}.stat-card strong{font-size:23px}.level-picker{gap:8px}.level-option{min-height:52px;font-size:18px}.app-footer{padding:14px 16px;font-size:10px}.setting-row{gap:12px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important}}