.home-page.landscape{width:100vw;height:100vh;height:100dvh;display:flex;flex-direction:row;background:linear-gradient(135deg,#1a1c2e,#2d3047);overflow:hidden;position:fixed;top:0;left:0;color:#fff}.left-panel{width:35%;min-width:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;position:relative;background:#0003}.logo-area{text-align:center;z-index:1}.logo-area .logo-icon{font-size:48px;margin-bottom:8px}.logo-area h1{font-size:28px;font-weight:700;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin:0}.logo-area .subtitle{font-size:13px;color:#ffffff80;margin-top:8px}.deco-board{position:absolute;bottom:20px;left:50%;transform:translate(-50%);display:grid;grid-template-columns:repeat(5,1fr);gap:12px;opacity:.15}.deco-point{width:8px;height:8px;background:#fff;border-radius:50%}.center-panel{flex:1;display:flex;flex-direction:column;justify-content:center;gap:24px;padding:24px;max-width:300px}.option-group{display:flex;flex-direction:column;gap:10px}.option-group label{font-size:12px;color:#ffffff80;text-transform:uppercase;letter-spacing:1px}.size-buttons{display:flex;gap:8px}.size-btn{flex:1;padding:12px 8px;background:#ffffff14;border:2px solid transparent;border-radius:10px;color:#fff;font-size:13px;font-weight:500;cursor:pointer;transition:all .2s ease}.size-btn:hover{background:#ffffff1f}.size-btn.active{border-color:#667eea;background:#667eea33}.color-buttons{display:flex;gap:8px}.color-btn{flex:1;display:flex;align-items:center;justify-content:center;gap:8px;padding:12px;background:#ffffff14;border:2px solid transparent;border-radius:10px;color:#ccc;font-size:13px;cursor:pointer;transition:all .2s ease}.color-btn:hover{background:#ffffff1f}.color-btn.active{border-color:#667eea;background:#667eea33;color:#fff}.color-btn .stone{font-size:18px}.color-btn .stone.black{color:#333;text-shadow:0 0 3px rgba(255,255,255,.5)}.color-btn .stone.white{color:#f5f5f5;text-shadow:0 0 3px rgba(0,0,0,.5)}.right-panel{width:35%;min-width:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:24px}.start-btn{width:100%;max-width:240px;display:flex;align-items:center;gap:14px;padding:18px 20px;border:none;border-radius:16px;cursor:pointer;transition:all .2s ease;text-align:left}.start-btn.primary{background:linear-gradient(135deg,#667eea,#764ba2);box-shadow:0 4px 20px #667eea66}.start-btn.primary:hover{box-shadow:0 6px 24px #667eea80}.start-btn.featured{background:linear-gradient(135deg,#f093fb,#f5576c);box-shadow:0 4px 20px #f5576c66;position:relative;border:2px solid rgba(255,255,255,.3)}.start-btn.featured:hover{box-shadow:0 6px 24px #f5576c80}.recommend-badge{position:absolute;top:-8px;right:-8px;background:linear-gradient(135deg,gold,#ffab00);color:#333;font-size:10px;font-weight:700;padding:3px 8px;border-radius:10px;box-shadow:0 2px 8px #ffab0066}.start-btn.secondary{background:#ffffff1a;border:1px solid rgba(255,255,255,.2)}.start-btn.secondary:hover{background:#ffffff26}.start-btn .btn-icon{font-size:28px}.start-btn .btn-text{display:flex;flex-direction:column;gap:2px}.start-btn .btn-text strong{font-size:15px;font-weight:600;color:#fff}.start-btn .btn-text small{font-size:11px;color:#ffffffb3}.icon-link{background:none;border:none;color:#ffffff80;font-size:13px;cursor:pointer;padding:8px 16px;margin-top:16px;transition:color .2s}.icon-link:hover{color:#fffc}.settings-overlay-content{display:flex;flex-direction:column;gap:20px;color:#fff}.setting-item{display:flex;align-items:center;justify-content:space-between;gap:16px}.setting-item label{font-size:14px;color:#fffc;min-width:80px}.setting-item input{flex:1;padding:10px 14px;background:#ffffff1a;border:1px solid rgba(255,255,255,.2);border-radius:8px;color:#fff;font-size:14px}.setting-item input::placeholder{color:#fff6}.setting-item input:focus{outline:none;border-color:#667eea}.setting-item .toggle{padding:8px 20px;background:#ffffff1a;border:1px solid rgba(255,255,255,.2);border-radius:8px;color:#fff9;font-size:13px;cursor:pointer;transition:all .2s;min-width:60px}.setting-item .toggle.on{background:#667eea4d;border-color:#667eea;color:#fff}.setting-hint{font-size:12px;color:#fff6;text-align:center;margin-top:8px}@media (orientation: portrait){.home-page.landscape{flex-direction:column}.left-panel{width:100%;min-width:unset;padding:20px;flex:0 0 auto}.logo-area .logo-icon{font-size:36px}.logo-area h1{font-size:24px}.deco-board{display:none}.center-panel{max-width:unset;padding:16px 24px}.right-panel{width:100%;min-width:unset;padding:16px 24px 32px}.start-btn{max-width:100%}}.go-board-container{width:100%;height:100%;max-width:min(85vw,calc(100vh - 48px));max-height:calc(100vh - 48px);margin:0 auto;aspect-ratio:1;touch-action:manipulation;display:flex;align-items:center;justify-content:center}.go-board{width:100%;height:100%;max-width:100%;max-height:100%;border-radius:8px;box-shadow:0 4px 20px #0000004d}.clickable-intersection{cursor:pointer;transition:fill .15s ease}.clickable-intersection:hover{fill:#0000001a}.clickable-intersection:active{fill:#0003}.ai-suggestion-ring{animation:pulse 2s infinite}@keyframes pulse{0%{opacity:1;stroke-width:.3}50%{opacity:.5;stroke-width:.5}to{opacity:1;stroke-width:.3}}.demo-highlight-pulse{animation:demo-pulse 1.5s ease-in-out infinite}@keyframes demo-pulse{0%{opacity:.6;transform-origin:center}50%{opacity:1}to{opacity:.6}}.selected-ring{animation:selected-pulse 1s ease-in-out infinite}@keyframes selected-pulse{0%{opacity:1;stroke-width:.4}50%{opacity:.6;stroke-width:.6}to{opacity:1;stroke-width:.4}}.liberty-pulse{animation:liberty-pulse 1.2s ease-in-out infinite}@keyframes liberty-pulse{0%{opacity:.5;r:attr(r)}50%{opacity:.9}to{opacity:.5}}.selected-stone{filter:drop-shadow(0 0 3px #FF9800)}@media (orientation: landscape){.go-board-container{max-width:calc(100vh - 48px);max-height:calc(100vh - 48px)}}@media (orientation: portrait){.go-board-container{max-width:min(90vw,70vh);max-height:70vh}}.ai-panel{background:#1a1a2e;border-radius:16px;overflow:hidden;box-shadow:0 4px 20px #0000004d;color:#fff;max-height:50vh;display:flex;flex-direction:column}.ai-panel-header{display:flex;align-items:center;padding:12px 16px;background:#16213e;cursor:pointer;-webkit-user-select:none;user-select:none}.ai-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center;font-size:20px;margin-right:12px}.ai-title{flex:1;display:flex;flex-direction:column}.ai-name{font-weight:600;font-size:16px}.ai-status{font-size:12px;color:#4ade80}.toggle-btn{background:none;border:none;color:#888;font-size:12px;cursor:pointer}.ai-panel-content{overflow:hidden}.current-player-hint{padding:8px 16px;background:#ffffff0d;display:flex;align-items:center;gap:8px;font-size:14px}.player-dot{width:12px;height:12px;border-radius:50%}.player-dot.black{background:#1a1a1a;border:1px solid #fff}.player-dot.white{background:#f5f5f5;border:1px solid #ccc}.ai-chat-area{padding:16px;max-height:200px;overflow-y:auto}.ai-thinking{text-align:center;padding:20px}.thinking-dots{display:flex;justify-content:center;gap:4px;margin-bottom:8px}.thinking-dots span{width:8px;height:8px;background:#667eea;border-radius:50%;animation:bounce 1.4s infinite both}.thinking-dots span:nth-child(1){animation-delay:-.32s}.thinking-dots span:nth-child(2){animation-delay:-.16s}.thinking-dots span:nth-child(3){animation-delay:0s}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}.ai-welcome{text-align:center;color:#888;font-size:14px;line-height:1.8}.ai-message{font-size:14px;line-height:1.6}.suggested-move{background:#4ade801a;padding:8px 12px;border-radius:8px;margin-bottom:12px;display:flex;align-items:center;flex-wrap:wrap;gap:8px}.suggested-move .label{color:#888}.suggested-move .coord{font-weight:700;color:#4ade80;font-size:18px}.suggested-move .confidence{font-size:12px;color:#888;margin-left:auto}.explanation{color:#ddd;white-space:pre-wrap}.concepts{margin-top:12px}.concepts .label{color:#888;font-size:12px}.concept-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}.concept-tag{background:#667eea33;color:#667eea;padding:4px 10px;border-radius:12px;font-size:12px}.alternatives{margin-top:12px}.alternatives .label{color:#888;font-size:12px}.alt-moves{display:flex;gap:8px;margin-top:6px}.alt-move{background:#ffffff1a;padding:4px 10px;border-radius:8px;font-size:13px}.quick-questions{display:flex;flex-wrap:wrap;gap:8px;padding:0 16px}.quick-btn{background:#ffffff1a;border:none;color:#ccc;padding:6px 12px;border-radius:16px;font-size:12px;cursor:pointer;transition:all .2s}.quick-btn:hover{background:#fff3}.quick-btn:disabled{opacity:.5;cursor:not-allowed}.ai-input-form{display:flex;gap:8px;padding:12px 16px;border-top:1px solid rgba(255,255,255,.1)}.ai-input-form input{flex:1;background:#ffffff1a;border:none;padding:10px 14px;border-radius:20px;color:#fff;font-size:14px}.ai-input-form input::placeholder{color:#666}.ai-input-form input:focus{outline:none;background:#ffffff26}.ai-input-form button{background:linear-gradient(135deg,#667eea,#764ba2);border:none;color:#fff;padding:10px 20px;border-radius:20px;font-weight:600;cursor:pointer;transition:opacity .2s}.ai-input-form button:disabled{opacity:.5;cursor:not-allowed}.game-controls{padding:16px;background:#f8f9fa;border-radius:16px}.game-info{margin-bottom:16px}.captures{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background:#fff;border-radius:12px;box-shadow:0 2px 8px #0000000d}.capture-item{display:flex;align-items:center;gap:8px}.stone{font-size:24px}.black-stone{color:#1a1a1a}.white-stone{color:#ccc;text-shadow:0 0 2px #888}.capture-count{font-size:20px;font-weight:700;color:#333}.move-count{font-size:14px;color:#666;padding:6px 16px;background:#f0f0f0;border-radius:20px}.control-buttons{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:12px}.control-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:12px 8px;border:none;border-radius:12px;background:#fff;cursor:pointer;transition:all .2s;box-shadow:0 2px 8px #0000000d}.control-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.control-btn:active:not(:disabled){transform:translateY(0)}.control-btn:disabled{opacity:.5;cursor:not-allowed}.btn-icon{font-size:24px}.btn-text{font-size:12px;color:#666;font-weight:500}.undo-btn:hover:not(:disabled){background:#fff3e0}.pass-btn:hover:not(:disabled){background:#e3f2fd}.analyze-btn{background:linear-gradient(135deg,#667eea,#764ba2)}.analyze-btn .btn-text{color:#fff}.analyze-btn:hover:not(:disabled){opacity:.9}.reset-btn:hover:not(:disabled){background:#ffebee}.mode-indicator{display:flex;justify-content:center}.mode-badge{padding:6px 16px;border-radius:20px;font-size:13px;font-weight:500}.mode-badge.ai-guide{background:linear-gradient(135deg,#667eea22,#764ba222);color:#667eea}.mode-badge.free-play{background:#e8f5e9;color:#4caf50}.mode-badge.lesson{background:#fff3e0;color:#ff9800}.mode-badge.puzzle{background:#fce4ec;color:#e91e63}@media (max-width: 360px){.control-buttons{grid-template-columns:repeat(2,1fr)}}.game-overlay-container{position:fixed;top:0;left:0;right:0;bottom:0;z-index:1000;pointer-events:auto}.overlay-backdrop{position:absolute;top:0;left:0;right:0;bottom:0;background:#0000004d;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.overlay-panel{position:absolute;background:linear-gradient(135deg,#23244a,#1a1a2e);color:#fff;display:flex;flex-direction:column;box-shadow:0 8px 32px #667eea2e,0 2px 8px #0000002e;border-radius:20px;font-family:inherit;font-size:15px;overflow:hidden;transition:box-shadow .2s}.overlay-panel.center{top:50%;left:50%;width:92vw;max-width:420px;max-height:80vh;border-radius:20px}.overlay-panel.right{top:0;right:0;bottom:0;width:380px;max-width:92vw;border-radius:20px 0 0 20px;box-shadow:-4px 0 32px #667eea1f,0 2px 8px #0000002e}.overlay-panel.bottom{left:0;right:0;bottom:0;max-height:70vh;border-radius:20px 20px 0 0}.overlay-header{display:flex;align-items:center;justify-content:space-between;padding:18px 28px 14px 24px;border-bottom:1px solid rgba(255,255,255,.08);flex-shrink:0;font-size:17px;font-weight:600;letter-spacing:.5px}.overlay-header h3{font-size:18px;font-weight:600;margin:0;color:#fff}.close-btn{background:#ffffff14;border:none;width:36px;height:36px;border-radius:50%;color:#a5b4fc;font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}.close-btn:hover{background:#667eea2e;color:#fff}.overlay-content{flex:1;overflow-y:auto;padding:22px 28px 22px 24px;font-size:15px;color:#e5e7fa}.overlay-content::-webkit-scrollbar{width:4px}.overlay-content::-webkit-scrollbar-thumb{background:#667eea2e;border-radius:4px}@media (max-width: 600px),(orientation: portrait){.overlay-panel.right,.overlay-panel.center{width:98vw;max-width:98vw;border-radius:0}}.game-page.landscape{width:100vw;height:100vh;height:100dvh;display:flex;flex-direction:row;background:linear-gradient(135deg,#1a1c2e,#2d3047);overflow:hidden;position:fixed;top:0;left:0}.game-page.loading{justify-content:center;align-items:center}.game-page .spinner{color:#fff;font-size:16px}.left-bar{width:60px;height:100%;display:flex;flex-direction:column;align-items:center;padding:12px 8px;gap:16px;background:#0003;border-right:1px solid rgba(255,255,255,.1)}.icon-btn{width:44px;height:44px;border-radius:12px;border:none;background:#ffffff1a;color:#fff;font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease}.icon-btn:hover{background:#fff3;transform:scale(1.05)}.icon-btn:disabled{opacity:.4;cursor:not-allowed;transform:none}.icon-btn.back{background:#667eea4d}.icon-btn.ai.thinking{animation:pulse 1.5s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.game-info{display:flex;flex-direction:column;gap:12px;margin-top:auto}.player-info{display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 4px;background:#ffffff14;border-radius:10px}.player-info .stone{font-size:20px}.player-info.black .stone{color:#333;text-shadow:0 0 2px rgba(255,255,255,.5)}.player-info.white .stone{color:#f5f5f5;text-shadow:0 0 2px rgba(0,0,0,.5)}.player-info .label{font-size:10px;color:#fff9}.player-info .captured{font-size:14px;font-weight:600;color:gold}.move-info{font-size:11px;color:#ffffff80;text-align:center;margin-bottom:12px}.board-area{display:flex;align-items:center;justify-content:center;position:relative;padding:8px;min-width:0;width:auto;height:100%;aspect-ratio:1;flex-shrink:0}.toast{position:absolute;top:20px;left:50%;transform:translate(-50%);background:#667eeae6;color:#fff;padding:8px 20px;border-radius:20px;font-size:13px;z-index:100;animation:fadeIn .3s ease;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.toast.error{background:#f44336e6}@keyframes fadeIn{0%{opacity:0;transform:translate(-50%) translateY(-10px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.demo-toast{position:absolute;bottom:20px;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:10px;background:linear-gradient(135deg,#2196f3f2,#03a9f4f2);color:#fff;padding:10px 16px;border-radius:24px;font-size:13px;z-index:100;animation:slideUp .3s ease;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);box-shadow:0 4px 20px #2196f366}.demo-toast-icon{font-size:16px}.demo-toast-text{flex:1;max-width:300px;line-height:1.4}.demo-toast-close{background:#fff3;border:none;color:#fff;padding:4px 10px;border-radius:12px;font-size:11px;cursor:pointer;transition:background .2s}.demo-toast-close:hover{background:#ffffff4d}@keyframes slideUp{0%{opacity:0;transform:translate(-50%) translateY(20px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.liberty-toast{position:absolute;top:20px;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:10px;background:linear-gradient(135deg,#4caf50f2,#43a047f2);color:#fff;padding:10px 16px;border-radius:24px;font-size:14px;z-index:100;animation:slideDown .3s ease;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);box-shadow:0 4px 20px #4caf5066}.liberty-toast-icon{font-size:18px}.liberty-toast-text{line-height:1.4}.liberty-toast-text strong{font-size:16px;margin:0 2px}.liberty-toast-close{background:#fff3;border:none;color:#fff;width:24px;height:24px;border-radius:50%;font-size:12px;cursor:pointer;transition:background .2s;display:flex;align-items:center;justify-content:center}.liberty-toast-close:hover{background:#ffffff4d}@keyframes slideDown{0%{opacity:0;transform:translate(-50%) translateY(-20px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.right-panel{flex:1;min-width:200px;height:100%;display:flex;flex-direction:column;background:#00000040;border-left:1px solid rgba(255,255,255,.1);padding:8px;box-sizing:border-box}.right-panel>*{width:100%;box-sizing:border-box}.status-section{display:flex;align-items:center;justify-content:center;gap:12px;padding:8px 12px;flex-shrink:0;width:100%}.status-tag{display:flex;align-items:center;gap:6px;padding:6px 12px;background:#667eea26;border-radius:6px;font-size:12px;color:#e5e7fa}.status-tag .dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}.status-tag .dot.black{background:#333;box-shadow:0 0 0 1.5px #ffffff4d}.status-tag .dot.white{background:#f5f5f5;box-shadow:0 0 0 1.5px #0003}.chat-history{flex:1;display:flex;flex-direction:column;min-height:0;overflow:hidden;margin:8px 0;background:#00000026;border-radius:8px}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;flex-shrink:0}.chat-title{font-size:12px;font-weight:600;color:#ffffffb3}.clear-chat-btn{background:none;border:none;cursor:pointer;font-size:12px;opacity:.5;transition:opacity .2s}.clear-chat-btn:hover{opacity:1}.chat-messages{flex:1;overflow-y:auto;padding:8px}.chat-empty{display:flex;align-items:center;justify-content:center;height:100%;color:#ffffff59;font-size:12px;text-align:center;padding:20px}.chat-msg{margin-bottom:12px;animation:slideIn .3s ease}@keyframes slideIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.chat-msg.ai .msg-content{background:#667eea26;border-radius:12px 12px 12px 4px;padding:10px 12px;font-size:12px;line-height:1.6;color:#e5e7fa}.chat-msg.system .msg-content{background:#ffffff14;border-radius:8px;padding:8px 12px;font-size:11px;color:#fff9;text-align:center}.chat-msg .msg-time{font-size:10px;color:#ffffff4d;margin-top:4px;margin-left:4px}.chat-msg.typing .ai-thinking{padding:8px 0}.ai-thinking{display:flex;align-items:center;justify-content:center;gap:10px;color:#9ca3c7;font-size:12px}.ai-thinking .dots{display:flex;gap:4px}.ai-thinking .dots span{width:5px;height:5px;background:#667eea;border-radius:50%;animation:bounce 1.4s infinite}.ai-thinking .dots span:nth-child(2){animation-delay:.2s}.ai-thinking .dots span:nth-child(3){animation-delay:.4s}@keyframes bounce{0%,80%,to{transform:scale(.8);opacity:.5}40%{transform:scale(1.2);opacity:1}}.chat-messages::-webkit-scrollbar{width:3px}.chat-messages::-webkit-scrollbar-track{background:transparent}.chat-messages::-webkit-scrollbar-thumb{background:#667eea33;border-radius:2px}.guided-action-hint{display:flex;align-items:center;justify-content:center;gap:8px;padding:8px 12px;margin:0 4px 8px;background:linear-gradient(135deg,#2196f326,#03a9f426);border:1px solid rgba(33,150,243,.3);border-radius:8px;animation:hintPulse 2s ease-in-out infinite}.guided-action-hint .hint-icon{font-size:14px}.guided-action-hint .hint-text{font-size:11px;color:#ffffffd9;line-height:1.4}@keyframes hintPulse{0%,to{opacity:1}50%{opacity:.7}}.toolbar{display:flex;justify-content:space-around;padding:8px 4px;background:#0003;border-radius:8px;flex-shrink:0}.tool-btn{display:flex;flex-direction:column;align-items:center;gap:2px;background:none;border:none;cursor:pointer;padding:6px 10px;border-radius:8px;transition:all .2s}.tool-btn:hover:not(:disabled){background:#667eea26}.tool-btn:disabled{opacity:.35;cursor:not-allowed}.tool-icon{font-size:18px}.tool-label{font-size:10px;color:#fff9}.tool-btn:hover:not(:disabled) .tool-label{color:#ffffffe6}.tool-btn.featured{background:linear-gradient(135deg,#f093fb4d,#f5576c4d);border:1px solid rgba(245,87,108,.5)}.tool-btn.featured:hover:not(:disabled){background:linear-gradient(135deg,#f093fb66,#f5576c66)}.tool-btn.featured .tool-label{color:#ffffffe6}.tool-btn.concept{background:linear-gradient(135deg,#4caf504d,#388e3c4d);border:1px solid rgba(76,175,80,.5)}.tool-btn.concept:hover:not(:disabled){background:linear-gradient(135deg,#4caf5066,#388e3c66)}.tool-btn.concept .tool-label{color:#ffffffe6}.tool-btn.ai-play{background:linear-gradient(135deg,#2196f34d,#03a9f44d);border:1px solid rgba(33,150,243,.5)}.tool-btn.ai-play:hover:not(:disabled){background:linear-gradient(135deg,#2196f366,#03a9f466)}.tool-btn.ai-play .tool-label{color:#ffffffe6}.tool-btn.ai-play.thinking{animation:aiPulse 1.5s infinite}.tool-btn.ai-play.thinking .tool-icon{animation:spin 1s linear infinite}@keyframes aiPulse{0%,to{box-shadow:0 0 5px #2196f34d}50%{box-shadow:0 0 15px #2196f399}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.analysis-panel{display:flex;flex-direction:column;height:100%;max-height:70vh}.analysis-list{flex:1;overflow-y:auto;padding:8px 0}.analysis-empty{display:flex;align-items:center;justify-content:center;height:120px;color:#fff6;font-size:13px}.analysis-item{padding:14px 16px;border-bottom:1px solid rgba(255,255,255,.06);animation:slideIn .3s ease}.analysis-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.move-badge{background:#667eea33;color:#a5b4fc;padding:3px 10px;border-radius:12px;font-size:11px;font-weight:600}.analysis-time{font-size:10px;color:#ffffff59}.analysis-content{font-size:13px;line-height:1.7;color:#e5e7fa}.clear-analysis-btn{display:flex;align-items:center;justify-content:center;gap:6px;width:100%;padding:12px;background:#f443361a;border:none;color:#f87171;font-size:12px;cursor:pointer;transition:background .2s}.clear-analysis-btn:hover{background:#f4433633}.analysis-list::-webkit-scrollbar{width:3px}.analysis-list::-webkit-scrollbar-track{background:transparent}.analysis-list::-webkit-scrollbar-thumb{background:#667eea33;border-radius:2px}.menu-content{display:flex;flex-direction:column;gap:8px}.menu-item{display:flex;align-items:center;gap:12px;padding:14px 20px;background:#ffffff1a;border:none;border-radius:12px;color:#fff;font-size:15px;cursor:pointer;transition:all .2s ease}.menu-item:hover{background:#fff3;transform:translate(4px)}.menu-item .icon{font-size:20px}@media (orientation: portrait){.game-page.landscape{flex-direction:column}.left-bar{flex-direction:row;width:100%;height:auto;padding:8px 16px;border-right:none;border-bottom:1px solid rgba(255,255,255,.1)}.game-info{flex-direction:row;margin:0 auto;gap:16px}.player-info{flex-direction:row;gap:8px}.move-info{display:none}.right-panel{width:100%;height:auto;flex-direction:column;border-left:none;border-top:1px solid rgba(255,255,255,.1)}.status-section{display:flex;flex-direction:row;align-items:center;gap:16px;padding:10px 16px}.turn-indicator{margin-bottom:0}.last-move-info{margin-left:0}.ai-feedback{max-height:100px;padding:10px 14px}.control-buttons{padding:10px}.ctrl-btn{width:36px;height:36px;font-size:16px}}.guided-panel{display:flex;flex-direction:column;gap:16px;padding:8px 0}.guided-content{padding:16px;border-radius:12px;background:#ffffff14}.guided-content.rule{background:linear-gradient(135deg,#667eea33,#764ba233);border-left:4px solid #667eea}.guided-content.concept{background:linear-gradient(135deg,#4caf5033,#388e3c33);border-left:4px solid #4caf50}.guided-content.suggestion{background:linear-gradient(135deg,#ffc10733,#ff980033);border-left:4px solid #ffc107}.guided-content.warning{background:linear-gradient(135deg,#f4433633,#d32f2f33);border-left:4px solid #f44336}.guided-content.encouragement{background:linear-gradient(135deg,#f093fb33,#f5576c33);border-left:4px solid #f093fb}.guided-text{font-family:inherit;font-size:14px;line-height:1.8;color:#ffffffe6;white-space:pre-wrap;margin:0}.guided-suggestion{display:flex;align-items:center;gap:10px;padding:12px 16px;background:#ffc10726;border-radius:10px}.suggestion-label{font-size:13px;color:#ffffffb3}.suggestion-points{display:flex;gap:8px;flex-wrap:wrap}.point-badge{display:inline-block;padding:4px 10px;background:linear-gradient(135deg,#ffc107,#ff9800);color:#333;font-size:12px;font-weight:600;border-radius:12px}.guided-close-btn{width:100%;padding:14px;background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:12px;color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:all .2s ease}.guided-close-btn:hover{transform:translateY(-1px);box-shadow:0 4px 15px #667eea66}.guided-close-btn:active{transform:translateY(0)}.guided-drawer{display:flex;flex-direction:column;height:100%;max-height:70vh}.tip-history-list{flex:1;overflow-y:auto;padding:8px 0}.tip-empty{display:flex;align-items:center;justify-content:center;height:120px;color:#fff6;font-size:13px;text-align:center;padding:20px}.tip-history-item{padding:14px 16px;border-bottom:1px solid rgba(255,255,255,.06);animation:slideIn .3s ease}.tip-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:10px;gap:8px}.tip-type-badge{font-size:12px;font-weight:600;color:#e5e7fa;line-height:1.4}.tip-type-badge.suggestion{color:#ffd54f}.tip-type-badge.warning{color:#ff8a65}.tip-type-badge.rule{color:#a5b4fc}.tip-type-badge.concept{color:#81c784}.tip-type-badge.encouragement{color:#f48fb1}.tip-time{font-size:10px;color:#ffffff59;flex-shrink:0}.tip-content{background:#ffffff0d;border-radius:8px;padding:12px;margin-bottom:10px}.tip-text{font-family:inherit;font-size:12px;line-height:1.7;color:#ffffffd9;white-space:pre-wrap;margin:0}.tip-suggestion-section{display:flex;flex-direction:column;gap:10px;padding:10px;background:#ffc1071a;border-radius:8px;border:1px solid rgba(255,193,7,.3)}.tip-suggestion-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.tip-suggestion-row .suggestion-label{font-size:12px;color:#ffffffb3}.tip-suggestion-row .suggestion-points{display:flex;gap:6px;flex-wrap:wrap}.tip-suggestion-row .point-badge{padding:3px 8px;font-size:11px}.mark-on-board-btn{display:flex;align-items:center;justify-content:center;gap:6px;width:100%;padding:10px 14px;background:linear-gradient(135deg,#ffc1074d,#ff98004d);border:1px solid rgba(255,193,7,.5);border-radius:8px;color:#fff;font-size:12px;font-weight:600;cursor:pointer;transition:all .2s ease}.mark-on-board-btn:hover{background:linear-gradient(135deg,#ffc10766,#ff980066);transform:translateY(-1px)}.mark-on-board-btn.active{background:linear-gradient(135deg,#ffc107,#ff9800);color:#333}.mark-on-board-btn .mark-icon{font-size:14px}.tip-drawer-footer{padding:12px 0 0;border-top:1px solid rgba(255,255,255,.1);margin-top:8px}.clear-tip-btn{display:flex;align-items:center;justify-content:center;gap:6px;width:100%;padding:12px;background:#f443361a;border:none;border-radius:8px;color:#f87171;font-size:12px;cursor:pointer;transition:background .2s}.clear-tip-btn:hover{background:#f4433633}.tip-history-list::-webkit-scrollbar{width:3px}.tip-history-list::-webkit-scrollbar-track{background:transparent}.tip-history-list::-webkit-scrollbar-thumb{background:#ffc1074d;border-radius:2px}.suggestion-toast{position:absolute;bottom:20px;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:10px;background:linear-gradient(135deg,#ffc107f2,#ff9800f2);color:#333;padding:10px 16px;border-radius:24px;font-size:13px;z-index:100;animation:slideUp .3s ease;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);box-shadow:0 4px 20px #ffc10766}.suggestion-toast-icon{font-size:16px}.suggestion-toast-text{flex:1;max-width:300px;line-height:1.4;font-weight:500}.suggestion-toast-close{background:#0003;border:none;color:#333;padding:4px 10px;border-radius:12px;font-size:11px;cursor:pointer;transition:background .2s}.suggestion-toast-close:hover{background:#0000004d}.concept-panel{display:flex;flex-direction:column;height:100%;max-height:70vh}.concept-categories{display:flex;flex-wrap:wrap;gap:8px;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:16px}.category-tab{display:flex;align-items:center;gap:6px;padding:8px 14px;background:#ffffff14;border:1px solid transparent;border-radius:20px;color:#ffffffb3;font-size:13px;cursor:pointer;transition:all .2s ease}.category-tab:hover{background:#ffffff1f;color:#ffffffe6}.category-tab.active{background:linear-gradient(135deg,#4caf504d,#388e3c4d);border-color:#4caf5080;color:#fff}.concept-content{flex:1;overflow-y:auto}.concept-list{display:flex;flex-direction:column;gap:8px}.concept-item{display:flex;align-items:center;gap:12px;padding:14px 16px;background:#ffffff0f;border:1px solid rgba(255,255,255,.1);border-radius:12px;color:#fff;font-size:14px;cursor:pointer;transition:all .2s ease;text-align:left}.concept-item:hover{background:#ffffff1a;border-color:#4caf5066;transform:translate(4px)}.concept-item .item-icon{font-size:20px}.concept-item .item-title{flex:1}.concept-item .item-arrow{color:#fff6;font-size:16px}.concept-detail{display:flex;flex-direction:column;gap:16px}.back-to-list{align-self:flex-start;padding:8px 14px;background:#ffffff14;border:none;border-radius:8px;color:#ffffffb3;font-size:13px;cursor:pointer;transition:all .2s ease}.back-to-list:hover{background:#ffffff1f;color:#fff}.concept-header{display:flex;align-items:center;gap:12px;padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.1)}.concept-header .concept-icon{font-size:32px}.concept-header h3{margin:0;font-size:18px;font-weight:600;color:#fff}.concept-text{font-family:inherit;font-size:14px;line-height:1.8;color:#ffffffe6;white-space:pre-wrap;margin:0;padding:16px;background:#ffffff0f;border-radius:12px}.demo-actions{display:flex;flex-direction:column;gap:10px;margin-top:16px;padding-top:16px;border-top:1px solid rgba(255,255,255,.1)}.demo-btn{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:14px 20px;background:linear-gradient(135deg,#2196f34d,#03a9f44d);border:1px solid rgba(33,150,243,.5);border-radius:12px;color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:all .2s ease}.demo-btn:hover{background:linear-gradient(135deg,#2196f366,#03a9f466);transform:translateY(-1px);box-shadow:0 4px 15px #2196f34d}.demo-btn.active{background:linear-gradient(135deg,#4caf5066,#388e3c66);border-color:#4caf5099}.demo-btn .demo-icon{font-size:18px}.demo-hint{margin:0;padding:10px 14px;background:#ffffff0f;border-radius:8px;font-size:13px;color:#ffffffb3;line-height:1.5}.settings-page{width:100vw;height:100vh;height:100dvh;background:linear-gradient(135deg,#1a1c2e,#2d3047);color:#fff;display:flex;flex-direction:column;overflow:hidden;position:fixed;top:0;left:0}.settings-header{display:flex;align-items:center;justify-content:space-between;padding:10px 28px;background:#0000002e;border-bottom:1px solid rgba(255,255,255,.08);flex-shrink:0}.back-btn{background:#667eea2e;border:none;font-size:15px;color:#a5b4fc;cursor:pointer;padding:8px 18px;border-radius:10px;transition:background .2s,color .2s}.back-btn:hover{background:#667eea52;color:#fff}.settings-header h1{font-size:18px;font-weight:600;color:#fff;letter-spacing:1px}.header-spacer{width:80px}.settings-body{flex:1;display:flex;flex-direction:row;overflow:hidden}.settings-tabs{width:140px;min-width:120px;background:#00000026;border-right:1px solid rgba(255,255,255,.08);display:flex;flex-direction:column;padding:16px 0;gap:4px;overflow-y:auto;overflow-x:hidden}.settings-tabs::-webkit-scrollbar{width:4px}.settings-tabs::-webkit-scrollbar-track{background:transparent}.settings-tabs::-webkit-scrollbar-thumb{background:#667eea33;border-radius:2px}.settings-tabs::-webkit-scrollbar-thumb:hover{background:#667eea59}.tab-btn{display:flex;align-items:center;gap:10px;padding:14px 20px;background:transparent;border:none;color:#9ca3c7;font-size:14px;cursor:pointer;transition:all .2s;text-align:left;border-left:3px solid transparent}.tab-btn:hover{background:#667eea14;color:#e5e7fa}.tab-btn.active{background:#667eea26;color:#fff;border-left-color:#667eea}.tab-icon{font-size:18px}.tab-label{font-weight:500}.settings-content{flex:1;overflow-y:auto;padding:20px 28px}.tab-panel{max-width:520px}.tab-panel h2{font-size:18px;font-weight:600;color:#a5b4fc;margin:0 0 8px;display:flex;align-items:center;gap:10px}.tab-desc{font-size:13px;color:#9ca3c7;margin:0 0 24px}.setting-item label{display:block;font-size:14px;font-weight:500;color:#e5e7fa;margin-bottom:12px}.api-key-row{display:flex;gap:10px;align-items:stretch;min-height:44px}.api-key-input{flex:1;display:flex;gap:0;background:#14162dcc;border:1px solid rgba(102,126,234,.3);border-radius:10px;overflow:hidden;min-height:44px}.api-key-input input{flex:1;padding:12px 14px;border:none;font-size:13px;font-family:SF Mono,Monaco,monospace;background:transparent;color:#fff;min-width:0}.api-key-input input::placeholder{color:#6b7094}.api-key-input input:focus{outline:none}.toggle-visibility{background:transparent;border:none;border-left:1px solid rgba(102,126,234,.15);padding:0 14px;cursor:pointer;font-size:16px;color:#9ca3c7;transition:all .2s}.toggle-visibility:hover{background:#667eea1a;color:#a5b4fc}.save-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:0 24px;border-radius:10px;font-size:13px;font-weight:600;cursor:pointer;white-space:nowrap;transition:all .2s}.save-btn:hover{transform:translateY(-1px);box-shadow:0 4px 15px #667eea59}.api-link{display:inline-block;margin-top:12px;font-size:12px;color:#9ca3c7;text-decoration:none;transition:color .2s}.api-link:hover{color:#a5b4fc}.model-options{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.model-option{display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px;padding:20px 16px;background:#1e234699;border:2px solid rgba(102,126,234,.15);border-radius:12px;cursor:pointer;transition:all .2s}.model-option:hover{border-color:#667eea59;background:#282d55b3}.model-option.active{border-color:#667eea;background:#667eea1f}.model-option .model-icon{font-size:32px}.model-option .model-info{display:flex;flex-direction:column;align-items:center;gap:4px}.model-option .model-name{font-size:14px;font-weight:600;color:#e5e7fa}.model-option .model-desc{font-size:11px;color:#9ca3c7;line-height:1.4}.model-option.active .model-name{color:#a5b4fc}.model-option .check-mark{position:absolute;top:8px;right:10px;font-size:14px;color:#667eea}.model-option{position:relative}.difficulty-options{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.difficulty-option{display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;padding:16px 12px;background:#1e234699;border:2px solid rgba(102,126,234,.15);border-radius:12px;cursor:pointer;transition:all .2s;position:relative}.difficulty-option:hover{border-color:#667eea59;background:#282d55b3}.difficulty-option.active{border-color:#667eea;background:#667eea1f}.difficulty-option .diff-info{display:flex;flex-direction:column;align-items:center;gap:4px}.difficulty-option .diff-label{font-size:14px;font-weight:600;color:#e5e7fa}.difficulty-option .diff-desc{font-size:11px;color:#9ca3c7;line-height:1.3}.difficulty-option.active .diff-label{color:#a5b4fc}.difficulty-option .check-mark{position:absolute;top:6px;right:8px;font-size:12px;color:#667eea}.setting-item{margin-bottom:24px}.setting-item:last-child{margin-bottom:0}.setting-desc{font-size:13px;color:#9ca3c7;margin-bottom:12px}.setting-desc a{color:#a5b4fc;text-decoration:underline;margin-left:8px}.toggle-item{display:flex;align-items:center;justify-content:space-between}.toggle-info{flex:1}.toggle-info .setting-desc{margin-bottom:0}.toggle-switch{width:52px;height:32px;border-radius:16px;background:#505278b3;border:none;padding:2px;cursor:pointer;transition:background .2s;position:relative}.toggle-switch.on{background:linear-gradient(135deg,#667eea,#764ba2)}.toggle-thumb{display:block;width:28px;height:28px;border-radius:50%;background:#fff;box-shadow:0 2px 8px #667eea2e;transition:transform .2s}.toggle-switch.on .toggle-thumb{transform:translate(20px)}.model-options{display:flex;gap:12px;margin-top:8px}.model-btn{flex:1;padding:10px 8px;border:2px solid rgba(102,126,234,.12);border-radius:10px;background:#1e203cb3;color:#bfc5e3;font-size:13px;cursor:pointer;transition:all .2s}.model-btn:hover{border-color:#667eea47;background:#282a50e6}.model-btn.active{border-color:#667eea;background:#667eea21;color:#a5b4fc;font-weight:600}.theme-options{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.theme-btn{display:flex;flex-direction:column;align-items:center;gap:8px;padding:12px 8px;border:2px solid rgba(102,126,234,.12);border-radius:12px;background:#1e203cb3;cursor:pointer;transition:all .2s}.theme-btn:hover{border-color:#667eea47;background:#282a50e6}.theme-btn.active{border-color:#667eea;background:#667eea21}.theme-preview{width:40px;height:40px;border-radius:50%;box-shadow:0 2px 8px #667eea21}.theme-preview.wood{background:#dcb35c;border:2px solid #8B4513}.theme-preview.minimal{background:#f0f0f0;border:2px solid #ccc}.theme-preview.dark{background:#232342;border:2px solid #667eea}.theme-name{font-size:13px;color:#bfc5e3}.theme-btn.active .theme-name{color:#a5b4fc;font-weight:600}.about-content{text-align:center;padding:20px 0}.about-content .app-logo{font-size:48px;margin-bottom:12px}.about-content h3{font-size:20px;font-weight:600;color:#fff;margin-bottom:6px}.about-content .app-version{font-size:13px;color:#9ca3c7;margin-bottom:16px}.about-content .app-desc{font-size:14px;color:#bfc5e3;line-height:1.6;margin-bottom:24px}.about-actions{margin-bottom:24px}.reset-data-btn{width:100%;max-width:280px;padding:12px 24px;background:#e53e3e1a;color:#fc8181;border:1px solid rgba(229,62,62,.22);border-radius:10px;font-size:14px;cursor:pointer;transition:all .2s}.reset-data-btn:hover{background:#e53e3e38;color:#fff}.about-content .copyright{font-size:12px;color:#7a7fa8;line-height:1.6}.settings-content::-webkit-scrollbar{width:5px}.settings-content::-webkit-scrollbar-track{background:transparent}.settings-content::-webkit-scrollbar-thumb{background:#667eea2e;border-radius:4px}@media (orientation: portrait){.settings-body{flex-direction:column}.settings-tabs{width:100%;min-width:unset;flex-direction:row;padding:8px 12px;gap:4px;overflow-x:auto;border-right:none;border-bottom:1px solid rgba(255,255,255,.08)}.tab-btn{flex-direction:column;padding:10px 16px;gap:4px;border-left:none;border-bottom:2px solid transparent;white-space:nowrap}.tab-btn.active{border-left-color:transparent;border-bottom-color:#667eea}.tab-icon{font-size:20px}.tab-label{font-size:12px}.settings-content{padding:16px}.tab-panel{max-width:100%}.model-options{grid-template-columns:1fr}.difficulty-options{grid-template-columns:repeat(2,1fr)}.api-key-row{flex-direction:column}.save-btn{padding:12px 24px}}*{margin:0;padding:0;box-sizing:border-box}html,body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#f5f7fa;color:#333}html{touch-action:manipulation;-webkit-tap-highlight-color:transparent}body{user-select:none;-webkit-user-select:none;overflow-x:hidden}input,textarea{user-select:text;-webkit-user-select:text}.app{min-height:100vh;min-height:100dvh}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ccc;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#aaa}button{font-family:inherit;cursor:pointer}button:focus{outline:none}input,textarea{font-family:inherit;font-size:inherit}a{color:#667eea;text-decoration:none}a:hover{text-decoration:underline}@supports (padding: env(safe-area-inset-bottom)){body{padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right);padding-bottom:env(safe-area-inset-bottom)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn .3s ease}.slide-up{animation:slideUp .3s ease}.rotate-notice{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#1a1c2e;color:#fff;z-index:9999;flex-direction:column;align-items:center;justify-content:center;gap:16px;text-align:center;padding:24px}.rotate-notice .icon{font-size:48px;animation:rotateHint 2s ease-in-out infinite}@keyframes rotateHint{0%,to{transform:rotate(0)}50%{transform:rotate(90deg)}}.rotate-notice p{font-size:16px;color:#fffc}@media (orientation: portrait) and (max-width: 600px){.rotate-notice{display:flex}.app>*:not(.rotate-notice){display:none}}
