@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@500;600&display=swap');
:root{font-family:Inter,"Microsoft YaHei",system-ui,sans-serif;color:#e8edea;background:#121b22;font-size:16px;color-scheme:dark;--muted:#9ba9ac;--gold:#d9b67c;--border:#34424a}*{box-sizing:border-box}body{margin:0}button,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.4}button:focus-visible,select:focus-visible,summary:focus-visible,a:focus-visible{outline:3px solid #e9c998;outline-offset:4px}button[hidden]{display:none}.topbar{max-width:1320px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:25px 48px;border-bottom:1px solid var(--border)}.brand{color:inherit;text-decoration:none;display:flex;align-items:center;gap:13px;font-family:"Noto Serif SC",serif;font-size:23px;letter-spacing:2px}.brand-mark{border:1px solid #b89a6d;border-radius:8px;color:var(--gold);padding:5px 9px;font-size:25px}.brand small{display:block;font:10px system-ui;letter-spacing:3px;color:var(--muted);margin-top:5px}.header-note{color:var(--muted);font-size:14px;letter-spacing:2px}.local-label{font-size:13px;color:#b7c8c1;border:1px solid var(--border);border-radius:30px;padding:9px 14px}main{max-width:1190px;margin:36px auto 52px;display:grid;grid-template-columns:minmax(0,1fr) 315px;gap:44px;padding:0 24px}.board-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:23px}.eyebrow{font-size:12px;letter-spacing:2px;color:var(--muted);margin:0 0 10px}h1{font:500 32px "Noto Serif SC",serif;letter-spacing:5px;margin:0}.rule-tag{font-size:13px;color:var(--muted)}.board-frame{background:#d9b781;border:1px solid #e4c797;border-radius:13px;box-shadow:0 20px 55px #0005,inset 0 0 0 5px #ffffff13;padding:12px 20px 0;color:#503d28}.letters{display:grid;grid-template-columns:repeat(15,1fr);text-align:center;font:12px system-ui;color:#796142;padding:0 0 5px}.board{position:relative;aspect-ratio:1;touch-action:manipulation}.grid-lines{position:absolute;width:100%;height:100%;pointer-events:none}.grid-lines line{stroke:#8c704a;stroke-width:1;opacity:.75}.grid-lines circle{fill:#715736}.cells{position:absolute;inset:0;display:grid;grid-template-columns:repeat(15,1fr);grid-template-rows:repeat(15,1fr)}.cell{position:relative;border:0;background:none;padding:0;min-width:0;opacity:1!important;border-radius:50%}.cell:before{content:"";position:absolute;inset:8%;border-radius:50%;transition:transform .14s}.cell.black:before,.player-stone.black{background:radial-gradient(circle at 34% 28%,#4d5559,#11191e 64%,#030709);box-shadow:1px 3px 5px #0006,inset 0 1px 1px #ffffff25}.cell.white:before,.player-stone.white{background:radial-gradient(circle at 32% 24%,#fff,#efeee5 65%,#cccbbf);box-shadow:1px 3px 5px #0004,inset 0 0 1px #fff}.cell:not(.black):not(.white):not(:disabled):hover:before{background:#15202944;transform:scale(.86)}.cell:focus-visible{outline:2px solid #815727;outline-offset:-2px;z-index:2}.cell.last:after{content:"";position:absolute;width:15%;height:15%;background:#dc7250;border:1px solid #fce0b5;border-radius:50%;top:42.5%;left:42.5%}.cell.winner:before{outline:3px solid #bf5639;outline-offset:2px}.board-caption{display:flex;justify-content:space-between;padding:12px 0 15px;font-size:12px;color:#685236}.last-dot{display:inline-block;width:6px;height:6px;background:#b6593a;border-radius:50%;margin-right:4px}.below-board{display:flex;justify-content:space-between;color:var(--muted);font-size:13px;margin-top:18px;gap:12px}aside{padding-top:8px}.status-panel{border:1px solid var(--border);background:#1b272f;border-radius:14px;padding:25px}.players{display:flex;align-items:center;justify-content:space-between;text-align:center;padding:21px 4px 24px;border-bottom:1px solid var(--border)}.players>div{display:flex;align-items:center;flex-direction:column;gap:9px}.player-stone{display:block;width:33px;height:33px;border-radius:50%;margin-bottom:2px}.players strong{font-size:15px;font-weight:500}.players small{font-size:12px;color:var(--muted)}.versus{font:12px Georgia;color:#6f818b;letter-spacing:2px}.turn-state{display:flex;align-items:flex-start;gap:12px;margin:23px 0 20px;min-height:55px}#turn-icon{font-size:24px;color:var(--gold);line-height:1.3}.turn-state h2{font-size:17px;margin:0 0 7px;font-weight:500}.turn-state p{font-size:13px;line-height:1.6;color:var(--muted);margin:0}.load-track{height:3px;background:#34424a;border-radius:3px;margin-bottom:20px;overflow:hidden}#load-bar{height:100%;background:var(--gold);width:0;transition:width .2s}.color-choice{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:24px 0 14px}.color-choice label{font-size:14px;color:#c4cdce}select{background:#121c23;border:1px solid #43525b;border-radius:7px;color:#e8edea;padding:9px 8px;font-size:14px;max-width:58%}.primary,.secondary{width:100%;padding:12px;border-radius:7px;transition:background .15s}.primary{background:var(--gold);color:#282a26;border:1px solid var(--gold);font-weight:600}.primary:hover:not(:disabled){background:#edcc97}.secondary{color:#c4d0d2;background:transparent;border:1px solid #43525b;margin-top:10px;font-size:14px}.secondary:hover:not(:disabled){background:#2a3942}.opponent-panel{padding:27px 4px 0}.section-label{display:flex;align-items:center;justify-content:space-between}.section-label h2{font-size:15px;font-weight:500;margin:0}.model-tag{font-size:11px;border:1px solid #566157;border-radius:4px;padding:4px 6px;color:#b9c6b7}.opponent-panel>p{font-size:14px;line-height:1.9;color:var(--muted);margin:17px 0}.model-facts{display:flex;gap:40px;padding-bottom:24px;border-bottom:1px solid var(--border)}.model-facts strong{display:block;font:26px Georgia;color:#e3d3b5;margin-bottom:6px}.model-facts span{font-size:12px;color:var(--muted)}details{margin-top:18px;color:var(--muted);font-size:13px;line-height:1.9}summary{cursor:pointer;font-size:14px;color:#c9d3d3}details p{margin:12px 0}.quiet-note{font-size:12px;color:#7f939a;line-height:1.8;margin-top:24px;padding:0 4px}footer{border-top:1px solid #283841;max-width:1190px;margin:0 auto;padding:24px;display:flex;justify-content:space-between;font-size:12px;letter-spacing:1px;color:#758991}@media(max-width:900px){main{gap:25px;grid-template-columns:minmax(0,1fr) 280px}.topbar{padding:20px 25px}.header-note{display:none}.status-panel{padding:19px}}@media(max-width:700px){main{grid-template-columns:1fr;padding:0 16px;margin-top:25px;gap:25px;max-width:570px}.topbar{padding:17px 20px}.local-label{font-size:12px}.brand{font-size:20px}h1{font-size:27px}.board-frame{padding:8px 9px 0}.board-heading{margin-bottom:18px}.rule-tag{font-size:12px}.board-caption{font-size:11px;padding:12px 2px}aside{padding:0}.status-panel{padding:22px}.players{padding:10px 25px 18px}.turn-state{margin:18px 0;min-height:0}.opponent-panel{padding-top:25px}.quiet-note{display:none}footer{padding:20px 16px;font-size:11px}.below-board{font-size:12px}.color-choice{margin-top:15px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}

[hidden]{display:none!important}input:not([type=checkbox]){width:100%;min-width:0;background:#121c23;color:#e8edea;border:1px solid #43525b;border-radius:7px;padding:10px;margin:8px 0;font:inherit}#lobby label{display:block;font-size:13px;margin-top:16px;color:#b9c6c8}#create{margin:18px 0}#connection,#hint-text,#notice,#request-text{font-size:13px;line-height:1.7;color:#d9b67c;overflow-wrap:anywhere}#room-id{font-size:14px}#room-panel label{font-size:13px;color:#9ba9ac}.cell.hint:before{border:3px dashed #197368;background:#76c9ab66}.cell[aria-disabled=true]{cursor:default}a{color:#d9b67c}#invite{font-size:12px}#request-panel{padding:10px;border:1px solid #d9b67c;border-radius:7px;margin-top:12px}

#mobile-controls{display:none}button,input,select{touch-action:manipulation}.primary,.secondary,input:not([type=checkbox]){min-height:44px}@media(max-width:700px){body{padding-bottom:calc(78px + env(safe-area-inset-bottom))}main{padding-left:max(12px,env(safe-area-inset-left));padding-right:max(12px,env(safe-area-inset-right))}#mobile-controls{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:10;align-items:center;justify-content:space-between;gap:12px;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:#1b272ff5;border-top:1px solid #43525b;backdrop-filter:blur(12px)}#mobile-hint{width:auto;min-width:110px;margin:0}#mobile-status{font-size:14px}.board{touch-action:manipulation}.cell{touch-action:manipulation}input:not([type=checkbox]){font-size:16px}#invite{font-size:16px}.board-heading{gap:8px}.rule-tag{white-space:nowrap}}