:root{color-scheme:dark;--bg:#152b26;--panel:#1d352e;--ink:#efe9dc;--muted:#a6b6a8;--gold:#d9bd80;--line:#ffffff1f;font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 0 0,#28453a,transparent 65%),var(--bg);color:var(--ink);min-height:100dvh}button{font:inherit;color:inherit;background:transparent;border:1px solid var(--line);border-radius:7px;padding:11px 15px;cursor:pointer;transition:background .15s}button:not(.point):hover:not(:disabled){background:#ffffff0d;border-color:var(--gold)}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--gold);outline-offset:3px}button:disabled{opacity:.4;cursor:not-allowed}button.primary{background:var(--gold);color:#20352b;border-color:var(--gold);font-weight:650}header{max-width:1320px;margin:auto;padding:25px 36px;display:flex;align-items:center;gap:22px;border-bottom:1px solid var(--line)}header>button{margin-left:auto}.logo{font-size:30px;font-weight:800;letter-spacing:-3px;color:var(--ink);text-decoration:none}.logo span{color:#d57256;font-size:10px;letter-spacing:0;margin-left:5px}.brand{font-family:serif;font-size:23px}.brand small{font:12px system-ui;color:var(--muted);margin-left:14px}main{max-width:1220px;margin:32px auto;padding:0 30px;display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:34px}.board-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.eyebrow{font-size:10px;letter-spacing:2.5px;color:var(--gold)}h1{font-family:serif;font-weight:500;letter-spacing:5px;font-size:30px;margin:6px 0 0}.board-wrap{padding:19px;background:#c49a61;border-radius:5px;box-shadow:0 15px 40px #0004,inset 0 0 0 1px #efd5a0;aspect-ratio:1}#board{position:relative;aspect-ratio:1;background:#d9b67c;background-image:repeating-linear-gradient(4deg,transparent 0 9px,#93673708 10px 11px)}#board svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.point{position:absolute;width:5.26%;height:5.26%;padding:0;border:0;border-radius:50%;transform:translate(-50%,-50%);display:grid;place-items:center;z-index:1;color:#322615}.point.black{background:radial-gradient(circle at 32% 25%,#555,#171918 60%,#080a09);box-shadow:1px 2px 3px #0006}.point.white{background:radial-gradient(circle at 30% 25%,#fff,#efede6 65%,#b3b1a8);box-shadow:1px 2px 3px #0005}.point.dead{opacity:.4}.point.last:after{content:"";width:24%;height:24%;border:2px solid #d8774b;border-radius:50%}.point.territory-B:before,.point.territory-W:before{content:"";width:20%;height:20%;background:#242824}.point.territory-W:before{background:#fff}.point:focus-visible{outline:2px solid #9c3e22;outline-offset:-2px}.seat{display:flex;gap:10px;margin-top:18px}.seat button{flex:1;font-size:13px}.seat button[aria-pressed=true]{border-color:var(--gold);background:#d9bd8012;color:var(--gold)}aside{padding-top:6px}.status-card,.card{padding:23px;border:1px solid var(--line);border-radius:10px;background:#1d352e88;margin-bottom:16px}h2{font-family:serif;font-size:30px;font-weight:500;margin:12px 0}h3{font-size:14px;font-weight:600;margin:0 0 12px}p{line-height:1.7;font-size:13px;color:var(--muted)}.stats{display:flex;gap:30px;border-top:1px solid var(--line);padding:19px 0;color:var(--muted);font-size:12px}.stats strong{display:block;font-size:25px;color:var(--ink);font-weight:400;margin-top:5px}.actions{display:grid;grid-template-columns:1fr 1fr;gap:9px}.actions button{font-size:13px}.sync-card label{font-size:13px;display:flex;gap:7px;align-items:center}.sync-card span{margin-left:auto;font-size:11px;color:var(--muted)}input{accent-color:var(--gold)}small{color:var(--muted);font-size:11px;display:inline-block}.sync-card small{margin-top:13px;line-height:1.6}.sync-card button{padding:6px 10px;font-size:12px}h3 span{float:right;font-weight:400;color:var(--muted)}#history{max-height:180px;overflow:auto;padding-left:26px;font-size:12px;color:var(--muted);line-height:2}#notice{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:#f1dec0;color:#302517;padding:14px 24px;border-radius:8px;z-index:10;box-shadow:0 5px 25px #0005;max-width:90vw}dialog{background:var(--panel);color:var(--ink);border:1px solid var(--gold);border-radius:12px;max-width:490px;width:90%;padding:28px}dialog::backdrop{background:#071a16b8}dialog p{font-size:14px}body.focus header,body.focus .board-heading h1,body.focus .board-heading .eyebrow,body.focus .history-card,body.focus .sync-card{display:none}body.focus main{margin:0 auto;height:100dvh;align-items:center;grid-template-columns:minmax(0,calc(100dvh - 140px)) 250px;justify-content:center;padding:12px;gap:18px}body.focus .board-heading{margin-bottom:10px;justify-content:flex-end}body.focus .board-wrap{max-height:calc(100dvh - 140px)}body.focus aside{max-height:calc(100dvh - 24px);overflow:auto}body.focus .seat{margin-top:10px}@media(max-width:850px){header{padding:18px 20px}.brand small{display:none}main{padding:0 16px;grid-template-columns:1fr;gap:24px;margin-top:22px}.board-wrap{padding:12px}aside{display:grid;grid-template-columns:1fr 1fr;gap:14px}.card,.status-card{margin:0;padding:18px}.history-card{grid-column:1/-1}body.focus main{grid-template-columns:1fr;height:100dvh;display:flex;flex-direction:column;gap:8px;justify-content:center}body.focus .play-area{width:min(100%,calc(100dvh - 215px))}body.focus .board-wrap{padding:8px}body.focus aside{display:block;width:100%;max-height:150px;overflow:auto}body.focus .status-card{padding:9px;display:flex;gap:12px;align-items:center;flex-wrap:wrap}body.focus .status-card .eyebrow,body.focus .stats,body.focus #detail{display:none}body.focus h2{font:19px system-ui;margin:0}body.focus .actions{display:flex;gap:5px}body.focus .actions button{padding:7px}body.focus .seat button{padding:7px}body.focus .board-heading button{padding:6px 10px}body.focus #scoring{padding:8px}body.focus #scoring p{margin:4px}}@media(max-width:480px){aside{grid-template-columns:1fr}.history-card{grid-column:auto}.seat{gap:6px}.seat button{padding:10px 5px}h1{font-size:26px}header .brand{font-size:20px}}
[hidden]{display:none!important}


.logo{display:flex;align-items:center}.logo img{display:block;width:42px;height:42px;object-fit:contain}

.languages{display:flex;gap:5px;margin-left:auto}.languages button{display:flex;align-items:center;gap:6px;padding:9px 11px;font-size:13px}.language-icon{display:grid;place-items:center;width:19px;height:19px;border:1px solid currentColor;border-radius:3px;font-size:12px;font-weight:600}.languages button[aria-pressed=true]{color:var(--gold);border-color:var(--gold);background:#d9bd8012}header>button{margin-left:0}@media(max-width:480px){header{gap:8px;padding:14px 12px}.languages button{padding:8px 6px;font-size:12px;gap:4px}header>button{padding:8px 6px;font-size:12px}.language-icon{width:16px;height:16px;font-size:10px}}

.board-wrap,body.focus .board-wrap{--board-padding:24px;position:relative;padding:var(--board-padding)}
.coordinates{position:absolute;display:grid;color:#49361f;font:10px/1 system-ui;pointer-events:none;text-align:center}
.coordinates-top,.coordinates-bottom{left:var(--board-padding);right:var(--board-padding);height:var(--board-padding);grid-template-columns:repeat(19,minmax(0,1fr));align-items:center}
.coordinates-top{top:0}.coordinates-bottom{bottom:0}
.coordinates-left,.coordinates-right{top:var(--board-padding);bottom:var(--board-padding);width:var(--board-padding);grid-template-rows:repeat(19,minmax(0,1fr));align-items:center}
.coordinates-left{left:0}.coordinates-right{right:0}
@media(max-width:480px){.board-wrap,body.focus .board-wrap{--board-padding:20px}.coordinates{font-size:9px}}

#history{max-height:320px;padding:4px 0;display:flex;flex-direction:column;gap:5px}
.tree-node{text-align:left;flex-shrink:0;font-size:12px;padding:8px;border-left:2px solid var(--line)}
.tree-node.active-path{border-left-color:var(--gold)}
.tree-node[aria-pressed=true]{background:#d9bd8022;color:var(--gold);border-color:var(--gold)}
.review-controls{display:flex;gap:4px;flex-wrap:wrap;margin-bottom:10px}.review-controls button{padding:6px 9px;font-size:12px}
body.focus .history-card{display:block;margin-top:12px}body.focus #history{max-height:160px}

.game-meta{max-width:1220px;margin:20px auto 0;padding:0 30px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}.game-meta>div{flex:1;min-width:140px}.game-meta p{margin:6px 0}.game-meta a{color:var(--gold)}body.focus .game-meta{display:none}
#edit-form label{display:block;margin:16px 0;font-size:14px}#edit-form input{display:block;width:100%;margin-top:6px;padding:10px;border:1px solid var(--line);border-radius:5px;background:var(--bg);color:var(--ink);font:inherit}
#game-name,#player-names,.tree-node{overflow-wrap:anywhere}

.history-page{display:block;max-width:900px}.history-page h1{margin-bottom:24px}.game-entry{display:block;color:var(--ink);text-decoration:none;border:1px solid var(--line);border-radius:8px;padding:18px;margin:12px 0}.game-entry:hover{border-color:var(--gold)}.game-entry strong{overflow-wrap:anywhere}.game-entry small{display:block;margin-top:8px}.back-game{color:var(--gold);font-size:13px}header:has(.back-game){flex-wrap:wrap}

.game-clock{display:flex;flex-wrap:wrap;gap:10px;font-variant-numeric:tabular-nums;font-size:13px;margin:12px 0}.game-clock small{width:100%}.game-clock button{padding:5px 8px;font-size:12px}.tree-node small{display:block;font-size:10px;margin-top:4px}body.focus .game-clock small{display:none}

#history{gap:3px}.tree-node{display:flex;align-items:center;gap:6px;padding:5px 7px;min-height:29px;min-width:0;white-space:nowrap;line-height:1.25}
.tree-label{min-width:0;flex:1;overflow:hidden;text-overflow:ellipsis}.tree-node small{display:inline;margin:0 0 0 auto;font-size:10px;flex-shrink:0;font-variant-numeric:tabular-nums}
.tree-stone{width:13px;height:13px;flex-shrink:0;border-radius:50%;border:1px solid #adb5ab}
.tree-black{background:#0b1a1666}.tree-black .tree-stone{background:radial-gradient(circle at 30% 25%,#555,#080a09)}
.tree-white{background:#ffffff09}.tree-white .tree-stone{background:radial-gradient(circle at 30% 25%,#fff,#d8d8d0);border-color:#eee}

.turn-black,.turn-white{display:flex;align-items:center;gap:10px}
.turn-black::before,.turn-white::before{content:"";display:inline-block;flex-shrink:0;width:25px;height:25px;border-radius:50%;box-shadow:0 2px 4px #0005}
.turn-black::before{background:radial-gradient(circle at 30% 25%,#505452,#080a09);border:1px solid #89958d}
.turn-white::before{background:radial-gradient(circle at 30% 25%,#fff,#dfdfd6);border:1px solid #fff}
#black-time,#white-time{display:inline-flex;align-items:center;gap:5px;padding:6px 8px;border-radius:5px;font-size:12px;font-weight:600}
#black-time{background:#0c100e;color:#f4f1e9;border:1px solid #65756c}#white-time{background:#f3f1e8;color:#19271f;border:1px solid #fff}

.actions button[data-side]{display:flex;align-items:center;justify-content:center;gap:5px}.actions button[data-side=black]::before,.actions button[data-side=white]::before{content:"";width:10px;height:10px;flex-shrink:0;border-radius:50%}.actions button[data-side=black]::before{background:#101411;border:1px solid #89958d}.actions button[data-side=white]::before{background:#f3f1e8;border:1px solid #fff}

header a.brand{color:var(--ink);text-decoration:none}header a.brand:hover{color:var(--gold)}

#sync-warning{padding:10px 12px;margin:0 0 14px;border:1px solid #e6b36c;border-radius:6px;background:#70411655;color:#ffe2b4;font-size:13px;line-height:1.5}body.focus #sync-warning{display:block;flex-basis:100%}

#board:is([data-preview=black],[data-preview=white]) .point:not(.black):not(.white):hover:not(:disabled)::before{content:"";position:absolute;inset:0;border-radius:50%;opacity:.65;pointer-events:none}
#board[data-preview=black] .point:not(.black):not(.white):hover:not(:disabled)::before{background:radial-gradient(circle at 32% 25%,#555,#171918 60%,#080a09);box-shadow:1px 2px 3px #0006}
#board[data-preview=white] .point:not(.black):not(.white):hover:not(:disabled)::before{background:radial-gradient(circle at 30% 25%,#fff,#efede6 65%,#b3b1a8);box-shadow:1px 2px 3px #0005}

header #rules{margin-left:auto}.rules-page{display:block;max-width:900px}.rules-page h1{letter-spacing:0}.rules-page nav{display:flex;flex-wrap:wrap;gap:18px;margin:24px 0}.rules-page a{color:var(--gold)}.rules-page section{scroll-margin-top:24px;margin:36px 0}.rules-page article{padding:20px 24px;margin:12px 0;border:1px solid var(--line);border-radius:10px;background:var(--panel)}.rules-page h3{font-size:17px}.rules-page p{font-size:15px;line-height:1.8;margin-bottom:0}