[v-cloak]{display:none}body{background-color:#2c3e50;color:#ecf0f1;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;text-align:center;padding-top:16px;overflow-x:hidden}.menu-container{background:#34495e;width:min(100% - 32px,460px);margin:26px auto;padding:30px;border-radius:10px;box-shadow:0 4px 15px #0000004d;box-sizing:border-box}.menu-btn{display:block;width:250px;padding:15px;margin:20px auto;font-size:1.2rem;font-weight:700;border:none;border-radius:5px;cursor:pointer;transition:all .2s}.btn-computer{background-color:#27ae60;color:#fff}.btn-computer:hover{background-color:#2ecc71}.btn-online{background-color:#3498db;color:#fff}.btn-online:hover{background-color:#2980b9}.btn-online.connected{background-color:#3498db;color:#fff;cursor:pointer}.btn-online.connected:hover{background-color:#2980b9}.game-container{width:min(100% - 32px,880px);max-width:880px;margin:0 auto}.status-panel{background-color:#34495e;padding:12px 20px;border-radius:8px;margin-bottom:14px;box-sizing:border-box}.highlight{color:#f1c40f;font-weight:700}.thinking-text{color:#e67e22;font-weight:700;height:24px;line-height:24px;margin:5px 0!important;animation:blink 1s infinite}.btn-restart{background-color:#e74c3c;color:#fff;border:none;padding:8px 15px;border-radius:4px;cursor:pointer}.chessboard{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));grid-template-rows:repeat(4,auto);gap:0;background:linear-gradient(90deg,rgba(83,44,16,.18) 1px,transparent 1px),linear-gradient(0deg,rgba(83,44,16,.18) 1px,transparent 1px),radial-gradient(circle at 20% 15%,rgba(255,235,184,.26),transparent 28%),linear-gradient(135deg,#c5904d,#a96f31 46%,#8f5528);background-size:12.5% 25%,12.5% 25%,auto,auto;background-origin:content-box;padding:clamp(16px,2.4vw,28px);border-radius:12px;border:clamp(3px,.7vw,6px) solid #5a3418;box-shadow:0 12px 26px #0000006b,inset 0 0 0 2px #ffe5ad40,inset 0 0 28px #44230c47;margin:0 auto;width:100%;max-width:min(100%,900px);box-sizing:border-box;place-items:center;--piece-size: 80%}.chess-cell{aspect-ratio:1;display:flex;align-items:center;justify-content:center;justify-self:center;align-self:center;width:100%;max-width:100%;min-width:0;min-height:0;position:relative;box-sizing:border-box;cursor:pointer}.chess-piece{width:var(--piece-size);aspect-ratio:1;border-radius:50%;display:flex;align-items:center;justify-content:center;box-sizing:border-box;background:radial-gradient(circle at 34% 26%,rgba(255,250,223,.82),transparent 30%),linear-gradient(145deg,#efd59c,#d1a160);font-size:clamp(1.15rem,3.9vw,2.45rem);font-weight:900;color:#2d1608;box-shadow:inset 0 -5px #6738133d,inset 0 2px #ffffff6b,0 4px 7px #00000047;-webkit-user-select:none;user-select:none;transition:transform .1s}.chess-piece span{display:inline-flex;align-items:center;justify-content:center;width:100%;height:100%;line-height:1;max-width:100%;overflow-wrap:anywhere}.chess-cell:active .chess-piece{transform:scale(.95)}.chessboard.is-drag-mode .chess-cell.is-draggable-piece{cursor:grab;touch-action:none}.chessboard.is-drag-mode .chess-cell.is-draggable-piece:active{cursor:grabbing}.chess-cell.is-drag-source .chess-piece{opacity:.58;transform:scale(.96)}.chess-cell.is-drag-target{outline:3px solid rgba(52,152,219,.9);outline-offset:2px}.chess-cell.is-drag-capture-target{position:relative;outline-color:#e74c3cf2}.chess-cell.is-drag-capture-target:after{content:"吃";position:absolute;right:-5px;top:-8px;display:inline-flex;align-items:center;justify-content:center;min-width:22px;min-height:22px;border-radius:999px;background:#e74c3c;color:#fff;font-size:.72rem;font-weight:900;box-shadow:0 3px 8px #00000047;pointer-events:none}.drag-piece-preview{position:fixed;left:0;top:0;z-index:99998;display:inline-flex;align-items:center;justify-content:center;width:clamp(42px,8vw,68px);height:clamp(42px,8vw,68px);border-radius:999px;background:radial-gradient(circle at 34% 26%,rgba(255,252,232,.9),transparent 30%),linear-gradient(145deg,#f8e6bd,#d9b678);border:2px solid rgba(36,23,13,.85);color:#24170d;font-weight:900;pointer-events:none;box-shadow:0 12px 22px #00000057}.chess-cell.is-empty{cursor:default}.chess-piece.closed-piece{background:radial-gradient(circle at 34% 26%,rgba(217,171,104,.26),transparent 28%),linear-gradient(145deg,#7b4a24,#4f2d15);color:#f8e0aa}.chess-piece.red-piece{color:#8f1f19;background:radial-gradient(circle at 34% 26%,rgba(255,252,229,.9),transparent 30%),linear-gradient(145deg,#f6dfad,#d8aa6a);border:2px solid #8f1f19}.chess-piece.black-piece{color:#24170d;background:radial-gradient(circle at 34% 26%,rgba(255,252,232,.9),transparent 30%),linear-gradient(145deg,#f8e6bd,#d9b678);border:2px solid #24170d}.chess-cell.selected .chess-piece{outline:4px solid #f1c40f;outline-offset:2px;animation:pulse 1s infinite}@keyframes blink{50%{opacity:.5}}@keyframes pulse{50%{transform:scale(1.05)}}.graveyard-container{margin:20px 0;text-align:center;background-color:#34495e;padding:15px;border-radius:8px}.graveyard.player-graveyard{margin-bottom:12px;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:12px}.graveyard .g-title{font-weight:700;color:#ecf0f1;font-size:1.1rem;display:block;margin-bottom:8px}.graveyard .captured-list{min-height:30px;display:flex;justify-content:center;flex-wrap:wrap;gap:10px}.graveyard .no-captured{color:#bdc3c7;font-size:.95rem}.graveyard .mini-piece{font-weight:800;font-size:1.2rem;background:#0003;padding:2px 10px;border-radius:20px;display:inline-block}.game-over-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#000000bf;display:flex;justify-content:center;align-items:center;z-index:999;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);animation:fadeIn .3s ease forwards}.game-over-card{position:relative;background:#34495e;padding:35px;border-radius:12px;text-align:center;box-shadow:0 10px 25px #00000080;border:2px solid #2c3e50;max-width:400px;width:85%;transform:scale(.9);animation:popUp .3s cubic-bezier(.175,.885,.32,1.275) forwards}.btn-collapse-result{position:absolute;top:12px;right:12px;border:1px solid rgba(236,240,241,.2);border-radius:5px;min-height:34px;padding:0 12px;background:#0f172a73;color:#ecf0f1;font-weight:800;cursor:pointer;transition:background-color .2s,transform .1s}.btn-collapse-result:hover{background:#0f172aad}.btn-collapse-result:active{transform:scale(.96)}.game-over-compact{width:min(calc(100% - 32px),620px);margin:0 auto 12px;padding:9px 12px;display:flex;align-items:center;justify-content:center;gap:12px;box-sizing:border-box;border:1px solid rgba(236,240,241,.18);border-radius:8px;background:#0f172adb;box-shadow:0 8px 18px #00000047}.game-over-compact__text{font-weight:900;line-height:1.25}.game-over-compact__text.win-text{color:#2ecc71}.game-over-compact__text.lose-text{color:#e74c3c}.game-over-compact__text.draw-text{color:#f1c40f}.game-over-compact__button{flex:0 0 auto;min-height:34px;padding:0 12px;border:none;border-radius:5px;background:#3498db;color:#fff;font-weight:800;cursor:pointer;transition:background-color .2s,transform .1s}.game-over-compact__button:hover{background:#2980b9}.game-over-compact__button:active{transform:scale(.96)}.game-over-title{font-size:2.3rem;font-weight:900;margin-bottom:15px}.game-over-title.win-text{color:#2ecc71;text-shadow:0 0 10px rgba(46,204,113,.3)}.game-over-title.lose-text{color:#e74c3c;text-shadow:0 0 10px rgba(231,76,60,.3)}.game-over-msg{color:#ecf0f1;font-size:1.1rem;margin-bottom:25px}.game-over-actions{display:flex;justify-content:center;gap:15px;margin-top:10px}.btn-play-again,.btn-back-menu{border:none;padding:10px 20px;font-size:1.1rem;font-weight:700;border-radius:4px;cursor:pointer;transition:transform .1s,background-color .2s}.btn-play-again{background-color:#27ae60;color:#fff}.btn-play-again:hover{background-color:#2ecc71}.btn-back-menu{background-color:#7f8c8d;color:#fff}.btn-back-menu:hover{background-color:#95a5a6}.btn-play-again:active,.btn-back-menu:active{transform:scale(.95)}.matching-container{max-width:400px;margin:50px auto;padding:20px}.matching-card{background:#34495e;padding:40px 30px;border-radius:12px;box-shadow:0 8px 25px #0006;border:1px solid rgba(255,255,255,.05);display:flex;flex-direction:column;align-items:center}.matching-card h3{color:#f1c40f;font-size:1.3rem;margin:20px 0 10px}.matching-card p{color:#bdc3c7;font-size:.95rem;margin-bottom:25px;line-height:1.5}.btn-cancel-match{background-color:#e74c3c;color:#fff;border:none;padding:12px 35px;font-size:1.05rem;font-weight:700;border-radius:5px;cursor:pointer;box-shadow:0 4px 6px #0003;transition:transform .1s,background-color .2s}.btn-cancel-match:hover{background-color:#c0392b}.btn-cancel-match:active{transform:scale(.96)}.radar-scan{width:80px;height:80px;background:#3498db26;border:3px solid #3498db;border-radius:50%;position:relative;box-shadow:0 0 20px #3498db66}.radar-scan:before{content:"";position:absolute;top:50%;left:50%;width:8px;height:8px;background-color:#3498db;border-radius:50%;transform:translate(-50%,-50%)}.radar-scan:after{content:"";position:absolute;top:-3px;left:-3px;right:-3px;bottom:-3px;border:3px solid #3498db;border-radius:50%;animation:radarRipple 1.6s cubic-bezier(.215,.61,.355,1) infinite}.pure-click-blocker{position:fixed;top:0;left:0;width:100vw;height:100vh;background:transparent;z-index:9999;cursor:wait}.game-status-bar{text-align:center;margin:10px auto 14px;height:35px;line-height:35px;font-size:1.15rem;background:#1a202c;border-radius:6px;width:fit-content;padding:0 20px}.status-turn-text{color:#fff}.consent-banner{position:fixed;left:50%;bottom:18px;z-index:100000;width:min(920px,calc(100vw - 28px));transform:translate(-50%);display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 18px;background:#0f172af0;border:1px solid rgba(236,240,241,.16);border-radius:8px;box-shadow:0 14px 32px #0000005c;text-align:left}.consent-banner__content{display:grid;gap:8px}.consent-banner__content p{margin:0;color:#ecf0f1;line-height:1.55;font-size:.95rem}.consent-banner__content a{color:#f1c40f;font-weight:700;width:fit-content}.consent-preferences{display:grid;gap:10px;margin-top:8px}.consent-preference-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:10px 12px;border:1px solid rgba(236,240,241,.14);border-radius:6px;background:#ffffff0f;color:#ecf0f1}.consent-preference-row p,.consent-preference-row small{display:block;margin:4px 0 0;color:#cbd5e1;font-size:.86rem;line-height:1.4}.consent-preference-row input{width:20px;height:20px;flex:0 0 auto}.consent-required-badge{flex:0 0 auto;color:#f1c40f;font-weight:700;white-space:nowrap}.consent-banner__actions{display:flex;gap:10px;flex-shrink:0;flex-wrap:wrap;justify-content:flex-end}.consent-button,.consent-settings-button{border:1px solid rgba(236,240,241,.22);border-radius:5px;cursor:pointer;font-weight:700;transition:background-color .2s,border-color .2s,transform .1s}.consent-button{min-height:38px;padding:0 14px}.consent-button--primary{background:#27ae60;color:#fff;border-color:#2ecc718c}.consent-button--primary:hover{background:#2ecc71}.consent-button--secondary{background:#ffffff14;color:#ecf0f1}.consent-button--secondary:hover,.consent-settings-button:hover{background:#ffffff24;border-color:#ecf0f157}.consent-button:active,.consent-settings-button:active{transform:translateY(1px)}.consent-settings-button{position:fixed;right:16px;bottom:16px;z-index:99990;min-height:40px;padding:0 14px;background:#0f172ac7;color:#ecf0f1;font-size:.85rem}@media(max-width:720px){body{padding-top:10px}.menu-container,.matching-container,.game-container{width:min(100% - 24px,600px);margin-left:auto;margin-right:auto}.menu-container{margin-top:18px;margin-bottom:18px;padding:18px 14px}.menu-btn{width:100%;max-width:280px;min-height:44px;margin:12px auto;box-sizing:border-box}.status-panel{padding:10px 12px;margin-bottom:10px}.status-panel p{margin:8px 0;line-height:1.45}.game-status-bar{width:min(100% - 24px,max-content);height:auto;min-height:35px;line-height:1.4;padding:7px 12px;margin-bottom:10px}.chessboard{gap:0;max-width:calc(100vw - 24px);padding:clamp(14px,4vw,20px);border-width:3px}.chess-piece{font-size:clamp(.78rem,4vw,1.22rem);border-width:1px}.graveyard-container{margin:12px 0;padding:10px}.graveyard .g-title{font-size:.98rem}.graveyard .captured-list{gap:6px}.graveyard .mini-piece{font-size:1rem;padding:2px 8px}.game-over-actions{flex-direction:column}.btn-play-again,.btn-back-menu{width:100%}.btn-collapse-result{top:10px;right:10px;min-height:32px;padding:0 10px;font-size:.86rem}.game-over-compact{width:min(calc(100% - 24px),600px);gap:8px;margin-bottom:8px;padding:8px 10px;font-size:.9rem}.game-over-compact__button{min-height:32px;padding:0 10px;font-size:.86rem}.consent-banner{align-items:stretch;flex-direction:column;bottom:12px;width:calc(100vw - 24px);max-height:min(62vh,calc(100vh - 24px));overflow-y:auto;padding:12px;gap:12px}.consent-banner__actions{justify-content:stretch}.consent-button{flex:1 1 100%;min-height:42px}.consent-preference-row{align-items:flex-start}.consent-settings-button{right:12px;bottom:12px;min-height:44px;max-width:calc(100vw - 24px);padding:0 16px;font-size:.92rem}}@media(min-width:721px)and (max-width:900px){.menu-container,.matching-container,.game-container{width:min(100% - 40px,760px)}.chessboard{max-width:min(760px,calc(100vw - 48px))}.chess-piece{font-size:clamp(1.3rem,2.8vw,1.75rem)}}@media(max-width:768px){.consent-settings-button{left:50%;right:auto;bottom:14px;width:min(100% - 24px,360px);min-height:44px;transform:translate(-50%)}.consent-settings-button:active{transform:translate(-50%) translateY(1px)}}@media(min-width:1280px){.game-container{max-width:940px}.chessboard{max-width:860px}.chess-piece{font-size:2.05rem}}@media(min-width:1440px){.game-container{max-width:960px}.chessboard{max-width:980px}}.game-play-shell{width:min(calc(100% - 32px),1480px);max-width:1480px;--game-board-max-width: min(100%, calc((100svh - 178px)*2) , 1240px);--game-board-cell-font-size: clamp(1.28rem, 2.85vw, 2.75rem);display:grid;grid-template-columns:1fr;gap:clamp(14px,2vw,28px);align-items:start}.game-control-row{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;width:100%}.game-info-sidebar{display:none;gap:12px;min-width:0;width:min(100%,520px);margin:0 auto}.game-info-sidebar.is-expanded{display:grid}.game-focus-toggle,.game-info-toggle{display:inline-flex;align-items:center;justify-content:center;width:min(100%,320px);min-height:42px;margin:0 auto;padding:0 16px;border:1px solid rgba(236,240,241,.22);border-radius:6px;background:#0f172ac7;color:#ecf0f1;cursor:pointer;font-weight:700;box-sizing:border-box}.game-focus-toggle{width:min(100%,180px);border-color:#2ecc7157;background:#27ae60d1}.game-focus-toggle[aria-pressed=true]{border-color:#f1c40fc2;background:#0f172aeb;box-shadow:0 0 0 2px #f1c40f38}.game-focus-toggle:hover,.game-info-toggle:hover{background:#ffffff1f}.game-board-area{display:grid;justify-items:center;min-width:0;width:100%;max-width:100%}@media(min-width:1280px){.darkchess-page.is-game-focus-mode .game-play-shell{--game-board-cell-font-size: clamp(3rem, 3.2vw, 4.5rem)}.game-play-shell:has(.game-info-sidebar.is-expanded){grid-template-columns:minmax(220px,300px) minmax(0,1fr)}.game-play-shell:has(.game-info-sidebar.is-expanded) .game-control-row{grid-column:1;grid-row:1}.game-play-shell:has(.game-info-sidebar.is-expanded) .game-info-sidebar{grid-column:1;grid-row:2;width:100%}.game-play-shell:has(.game-info-sidebar.is-expanded) .game-board-area{grid-column:2;grid-row:1 / span 2}}.orientation-hint{display:none;width:100%;margin:0 0 10px;padding:10px 12px;border:1px solid rgba(241,196,15,.3);border-radius:8px;background:#f1c40f1a;color:#f8d757;font-weight:700;line-height:1.45;box-sizing:border-box}.game-play-shell .game-status-bar{width:100%;height:auto;min-height:38px;margin:0;padding:8px 12px;line-height:1.4;box-sizing:border-box}.game-play-shell .status-panel,.game-play-shell .graveyard-container{margin:0;text-align:left}.game-play-shell .status-panel p{margin:8px 0;line-height:1.45}.game-play-shell .btn-restart{width:100%;min-height:42px;margin-top:6px;font-weight:700}.game-play-shell .graveyard .captured-list{justify-content:flex-start}.game-play-shell .chessboard{width:min(100%,var(--game-board-max-width));max-width:var(--game-board-max-width)}.game-play-shell .chess-piece{font-size:var(--game-board-cell-font-size)}.darkchess-page.is-game-focus-mode{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;width:100vw;height:100svh;min-height:100svh;overflow:hidden;padding:8px;background:#2c3e50;box-sizing:border-box}.darkchess-page.is-game-focus-mode .darkchess-page-top,.darkchess-page.is-game-focus-mode>h2{display:none}.darkchess-page.is-game-focus-mode .game-play-shell{width:100%;max-width:none;--game-board-max-width: min(100%, calc((100svh - 76px)*2) , calc(100vw - 16px) );gap:6px}.darkchess-page.is-game-focus-mode .game-control-row{gap:8px}.darkchess-page.is-game-focus-mode .game-focus-toggle,.darkchess-page.is-game-focus-mode .game-info-toggle{width:auto;min-height:34px;padding:0 12px;font-size:.82rem}.darkchess-page.is-game-focus-mode .game-info-sidebar{max-height:calc(100svh - 56px);overflow-y:auto}.darkchess-page.is-game-focus-mode .chessboard{width:min(100%,var(--game-board-max-width));max-width:var(--game-board-max-width)}@media(min-width:1920px){.game-play-shell{max-width:1540px;--game-board-max-width: min(100%, calc((100svh - 184px)*2) , 1320px)}}@media(min-width:721px)and (max-width:1180px){.game-play-shell{width:min(calc(100% - 28px),980px);--game-board-max-width: min(100%, calc((100svh - 166px)*2) , 920px);--game-board-cell-font-size: clamp(1.05rem, 2.8vw, 1.95rem);grid-template-columns:minmax(170px,200px) minmax(0,1fr);gap:10px}.game-play-shell .status-panel,.game-play-shell .graveyard-container{padding:10px}.game-play-shell .game-status-bar{font-size:1rem}.game-play-shell .graveyard .g-title{font-size:.96rem}.game-play-shell .graveyard .captured-list{gap:6px}.game-play-shell .graveyard .mini-piece{font-size:1rem;padding:2px 8px}.game-play-shell .chessboard{width:min(100%,var(--game-board-max-width));max-width:var(--game-board-max-width)}}@media(max-width:1279px){.game-play-shell{--game-board-max-width: min(100%, calc((100svh - 154px)*2) , 1040px);grid-template-columns:1fr}.game-control-row{grid-column:1}.game-info-sidebar{grid-column:1;width:min(100%,520px);margin:0 auto}.game-board-area{grid-column:1;width:100%}}@media(max-width:900px)and (orientation:landscape){body{padding-top:6px}.darkchess-page h2{display:none}.darkchess-page-top{width:calc(100% - 16px);margin-bottom:4px}.back-home-link{min-height:28px;padding:0 9px;font-size:.76rem}.game-play-shell{width:calc(100vw - 16px);--game-board-max-width: min(100%, calc((100svh - 160px)*2) , 920px);--game-board-cell-font-size: clamp(.86rem, 3vw, 1.36rem);gap:6px}.game-focus-toggle,.game-info-toggle{width:auto;min-height:30px;margin:0 auto;padding:0 10px;font-size:.78rem}.darkchess-page.is-game-focus-mode{padding:4px}.darkchess-page.is-game-focus-mode .game-play-shell{width:100%;--game-board-max-width: min(100%, calc((100svh - 44px)*2) , calc(100vw - 8px) );gap:4px}.darkchess-page.is-game-focus-mode 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