:root{--bg:#161512;--panel:#262421;--panel-2:#302e2c;--border:#3d3a37;--text:#e2e0dd;--muted:#9a9693;--accent:#629924;--accent-hover:#74b42c;--danger:#c33;--gold:#e8c46a;--radius:8px;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;color:var(--text);background:var(--bg);font-family:system-ui,-apple-system,Segoe UI,Noto Sans TC,PingFang TC,sans-serif}*{box-sizing:border-box}body{background:var(--bg);min-height:100vh;margin:0}a{color:inherit;text-decoration:none}button,.btn,input{font:inherit;color:inherit}button,.btn{border:1px solid var(--border);background:var(--panel-2);cursor:pointer;white-space:nowrap;border-radius:6px;justify-content:center;align-items:center;gap:4px;padding:7px 12px;transition:background .15s;display:inline-flex}button:hover:not(:disabled),.btn:hover{background:#3a3734}button:disabled{opacity:.45;cursor:default}button.primary,.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}button.primary:hover:not(:disabled),.btn.primary:hover{background:var(--accent-hover)}button.danger{color:#ff8a80}button.big{width:100%;margin-top:4px;padding:12px;font-size:1.05rem}.small-btn{padding:4px 10px;font-size:.85rem}.link-btn{color:var(--gold);background:0 0;border:none;padding:4px 0}input{border:1px solid var(--border);background:#1d1c1a;border-radius:6px;min-width:0;padding:8px 10px}input:focus{outline:2px solid var(--accent);outline-offset:-1px}.topbar{border-bottom:1px solid var(--border);background:#1e1d1b;justify-content:space-between;align-items:center;padding:10px 16px;display:flex}.brand{align-items:center;gap:8px;font-size:1.15rem;font-weight:700;display:flex}.logo{color:var(--gold);font-size:1.5rem;line-height:1}.lang-btn{background:0 0;font-size:.9rem}main{max-width:1200px;margin:0 auto;padding:16px}.panel{background:var(--panel);border-radius:var(--radius);border:1px solid var(--border);padding:14px 16px}.panel-title{color:var(--gold);margin-bottom:10px;font-weight:600}.panel h2{margin-top:0}.muted{color:var(--muted)}.small{font-size:.85rem}.pad{padding:8px}.row{align-items:center;gap:8px;display:flex}.row input{flex:1}.grow{text-overflow:ellipsis;flex:1;min-width:0;overflow:hidden}.error{color:#ff8a80;margin:8px 0}.center-page{justify-content:center;align-items:center;min-height:60vh;display:flex}.center-page .panel{flex-direction:column;gap:12px;width:min(420px,100%);display:flex}.home{grid-template-columns:1fr 1fr;gap:16px;display:grid}.home>section:first-child{grid-column:1/-1}.field-label{color:var(--muted);margin:12px 0 6px;font-size:.9rem}.chips{flex-wrap:wrap;gap:6px;display:flex}.chip{border-radius:999px;padding:6px 12px}.chip.on{background:var(--accent);border-color:var(--accent);color:#fff}.custom-tc{margin-top:10px}.custom-tc label{color:var(--muted);flex-direction:column;flex:1;gap:4px;font-size:.85rem;display:flex}.check{cursor:pointer;align-items:flex-start;gap:8px;margin:14px 0;display:flex}.check input{margin-top:4px}.list{flex-direction:column;gap:4px;margin:0;padding:0;list-style:none;display:flex}.list li{background:var(--panel-2);border-radius:6px;align-items:center;gap:10px;padding:8px 10px;display:flex}.game-link{align-items:center;gap:10px;width:100%;display:flex}.list li:has(.game-link):hover{background:#3a3734}.result{font-variant-numeric:tabular-nums;font-weight:700}.result.win{color:#8fd14f}.result.loss{color:#ff8a80}.tabs{gap:4px;margin-bottom:10px;display:flex}.tabs button{color:var(--muted);background:0 0;border-color:#0000}.tabs button.on{color:var(--gold);border-color:var(--border);background:var(--panel-2)}.name-form label{margin-bottom:8px;display:block}.piece-dot{vertical-align:-1px;border:1px solid #888;border-radius:50%;flex:none;width:12px;height:12px;display:inline-block}.piece-dot.w{background:#f5f5f5}.piece-dot.b{background:#222}.game-layout{grid-template-columns:minmax(0,1fr) 340px;align-items:start;gap:16px;display:grid}.board-col{flex-direction:column;gap:6px;width:100%;max-width:min(100%,100vh - 190px);margin:0 auto;display:flex}.board-wrap{aspect-ratio:1;border-radius:4px;width:100%;position:relative;overflow:hidden;box-shadow:0 4px 20px #00000080}.side-col{flex-direction:column;gap:12px;display:flex}.player-bar{background:var(--panel);border-radius:6px;align-items:center;gap:8px;min-height:44px;padding:6px 10px;display:flex}.player-bar.active{box-shadow:inset 3px 0 0 var(--accent)}.player-name{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;font-weight:600;overflow:hidden}.you-tag{background:var(--accent);color:#fff;vertical-align:2px;border-radius:4px;margin-left:6px;padding:1px 5px;font-size:.7rem}.offline-tag{color:#ff8a80;font-size:.75rem}.clock{color:var(--muted);font-variant-numeric:tabular-nums;background:#1d1c1a;border-radius:4px;padding:2px 10px;font-family:ui-monospace,SF Mono,Menlo,monospace;font-size:1.35rem}.clock.running{color:#161512;background:#e2e0dd}.clock.running.low{color:#fff;background:#c33}.status-line{flex-direction:column;gap:2px;margin-bottom:10px;display:flex}.invite{background:var(--panel-2);border-radius:6px;flex-direction:column;gap:6px;margin-bottom:10px;padding:10px;display:flex}.offer{background:#3b3520;border:1px solid #6b5a22;border-radius:6px;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:8px;padding:8px 10px;display:flex}.offer span{flex:1}.actions{flex-wrap:wrap;align-items:center;gap:6px;margin-top:10px;display:flex}.movelist{background:#1d1c1a;border-radius:6px;overflow:hidden}.moves-scroll{min-height:80px;max-height:220px;overflow-y:auto}.move-row{grid-template-columns:40px 1fr 1fr;display:grid}.move-row:nth-child(odd){background:#ffffff05}.move-no{color:var(--muted);text-align:right;padding:4px 8px;font-size:.9rem}.move{background:0 0;border:none;border-radius:0;justify-content:flex-start;padding:4px 8px;font-weight:500}.move.active{color:#fff;background:var(--accent)!important}.nav-btns{border-top:1px solid var(--border);grid-template-columns:repeat(4,1fr);display:grid}.nav-btns button{background:0 0;border:none;border-radius:0}.chat{flex-direction:column;display:flex}.chat-list{flex-direction:column;gap:4px;height:200px;margin-bottom:8px;font-size:.92rem;display:flex;overflow-y:auto}.chat-msg{word-break:break-word}.chat-name{margin-right:6px;font-weight:600}.chat-name.role-w{color:#f0f0f0}.chat-name.role-b{color:#c9a26b}.chat-name.role-s{color:var(--muted)}.chat-form{gap:6px;display:flex}.chat-form input{flex:1}.pgn{white-space:pre-wrap;word-break:break-word;max-height:200px;color:var(--muted);background:#1d1c1a;border-radius:6px;padding:10px;font-size:.8rem;overflow:auto}.conn-banner,.toast{z-index:50;border-radius:6px;padding:8px 16px;position:fixed;left:50%;transform:translate(-50%);box-shadow:0 4px 16px #00000080}.conn-banner{background:#6b5a22;top:60px}.toast{border:1px solid var(--border);background:#333;bottom:24px}.promo-overlay{z-index:10;background:#0000008c;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.promo-box{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:12px}.promo-title{text-align:center;color:var(--gold);margin-bottom:8px}.promo-pieces{gap:6px;display:flex}.promo-btn{background:#f0d9b5;width:64px;height:64px;padding:4px}.promo-btn:hover:not(:disabled){background:#fff}.promo-btn svg{width:100%;height:100%}@media (width<=900px){.game-layout{grid-template-columns:1fr}.board-col{max-width:600px}.home{grid-template-columns:1fr}}@media (width<=520px){main{padding:8px}.hide-sm{display:none}.clock{font-size:1.15rem}.promo-btn{width:52px;height:52px}}