@import"https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;600;700&display=swap";:root{--bg: #FAF7F5;--surface: #FFFFFF;--primary: #8B6E6E;--primary-dark: #6B5454;--accent: #D4A5A5;--text: #3D2F2F;--text-muted: #6B5454;--border: #E8DDD8;--success: #5C8A4B;--warning: #A87C2C;--danger: #A03939;--radius: 20px;--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04)}body{margin:0;padding:0;background:radial-gradient(circle at 20% 30%,#8B6E6E1a 0%,transparent 50%),radial-gradient(circle at 80% 70%,#D4A5A515 0%,transparent 50%),var(--bg);color:var(--text);font-family:"Noto Serif SC","Source Han Serif SC",思源宋体,Songti SC,STSong,serif;display:flex;justify-content:center;align-items:center;min-height:100vh;overflow:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app-container{display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;max-width:600px;padding:20px;box-sizing:border-box;position:relative}.start-screen,.game-screen,.game-over-screen{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:30px;text-align:center;width:100%;max-width:500px;display:flex;flex-direction:column;align-items:center;gap:20px}.start-screen{min-height:400px;justify-content:center}.main-title{font-family:"Noto Serif SC",serif;font-size:3.5em;font-weight:700;color:var(--primary-dark);margin-bottom:10px;letter-spacing:2px;text-shadow:1px 1px 2px rgba(0,0,0,.05)}.subtitle{font-size:1.2em;color:var(--text-muted);margin-bottom:30px}.start-button{width:80%;padding:15px 25px;border:none;border-radius:var(--radius);font-size:1.1em;font-weight:600;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:8px}.primary-button{background-color:var(--primary);color:var(--surface)}.primary-button:hover{background-color:var(--primary-dark);box-shadow:0 4px 8px #0000001a}.secondary-button{background-color:var(--border);color:var(--text-muted);margin-top:10px}.secondary-button:hover{background-color:#e0d5ce;box-shadow:0 2px 4px #00000014}.game-screen{padding:20px}.game-title{font-family:"Noto Serif SC",serif;font-size:2em;font-weight:600;color:var(--primary);margin-bottom:20px}.game-info-panel{display:flex;justify-content:space-around;width:100%;margin-bottom:20px;padding:10px 0;border-bottom:1px solid var(--border)}.player-status{display:flex;align-items:center;gap:10px;font-size:1.1em;font-weight:600;color:var(--text-muted)}.player-indicator{padding:5px 10px;border-radius:var(--radius);transition:all .3s ease;display:flex;align-items:center;gap:5px}.player-indicator.active-player{background-color:var(--accent);color:var(--surface);box-shadow:var(--shadow)}.player-dot{width:12px;height:12px;border-radius:50%;display:inline-block;border:1px solid rgba(0,0,0,.1)}.black-dot{background-color:#000}.white-dot{background-color:#fff}.captured-count{font-size:.9em;color:var(--text-muted)}.board-container{width:100%;max-width:360px;aspect-ratio:1 / 1;background-color:tan;border-radius:5px;box-shadow:inset 0 0 10px #0003;position:relative;margin:0 auto 20px;overflow:hidden;background-image:linear-gradient(to bottom,transparent 0%,transparent 99%,rgba(0,0,0,.1) 100%),linear-gradient(to right,transparent 0%,transparent 99%,rgba(0,0,0,.1) 100%);background-size:40px 40px;background-position:-1px -1px}.go-board{width:100%;height:100%;display:block}.intersection-hover-area{cursor:pointer}.intersection-hover-area:hover{fill:rgba(var(--primary),.1)}.black-stone{fill:#000;stroke:#222;stroke-width:.5px;filter:drop-shadow(0 1px 2px rgba(0,0,0,.3));background:radial-gradient(circle at 25% 25%,#333,#000)}.white-stone{fill:#fff;stroke:#ccc;stroke-width:.5px;filter:drop-shadow(0 1px 2px rgba(0,0,0,.3));background:radial-gradient(circle at 25% 25%,#eee,#fff)}.game-controls{display:flex;justify-content:space-around;width:100%;margin-top:20px;gap:10px}.control-button{padding:10px 15px;border:1px solid var(--border);border-radius:var(--radius);background-color:var(--surface);color:var(--text);font-weight:600;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:5px;flex:1;justify-content:center}.control-button:hover:not(:disabled){background-color:var(--border);box-shadow:0 2px 4px #00000014}.control-button:disabled{opacity:.6;cursor:not-allowed}.control-button.primary-button{background-color:var(--primary);color:var(--surface);border-color:var(--primary)}.control-button.primary-button:hover:not(:disabled){background-color:var(--primary-dark);border-color:var(--primary-dark)}.history-panel{width:100%;max-height:150px;overflow-y:auto;margin-top:20px;padding:15px;background-color:var(--bg);border-radius:var(--radius);box-shadow:inset 0 1px 3px #0000000d;text-align:left}.history-panel h3{font-size:1.1em;color:var(--primary-dark);margin-top:0;margin-bottom:10px;font-weight:600}.move-list{list-style:none;padding:0;margin:0;font-size:.9em;color:var(--text-muted)}.move-list li{padding:5px 0;border-bottom:1px dashed var(--border)}.move-list li:last-child{border-bottom:none}.game-over-screen{min-height:400px;justify-content:center}.trophy-icon{color:var(--accent);margin-bottom:20px}.game-over-title{font-family:"Noto Serif SC",serif;font-size:2.5em;font-weight:700;color:var(--primary-dark);margin-bottom:15px}.winner-message,.draw-message{font-size:1.3em;font-weight:600;color:var(--text);display:flex;align-items:center;gap:10px;margin-bottom:20px}.final-scores{background-color:var(--bg);padding:15px 25px;border-radius:var(--radius);box-shadow:inset 0 1px 3px #0000000d;margin-bottom:30px;text-align:left;width:80%;max-width:300px}.final-scores p{margin:8px 0;font-size:1.1em;display:flex;align-items:center;gap:8px;color:var(--text-muted)}.restart-button{width:80%;padding:15px 25px;border:none;border-radius:var(--radius);font-size:1.1em;font-weight:600;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:8px}