:root{--color-primary: #8B4513;--color-primary-light: #A0522D;--color-primary-dark: #6B3410;--color-bg: #FFF8F0;--color-surface: #FFFFFF;--color-text: #333333;--color-text-secondary: #666666;--color-text-muted: #999999;--color-border: #E0D5C7;--color-user-bubble: #E8F0FE;--color-system-bubble: #FFFFFF;--color-error: #D32F2F;--color-error-bg: #FFEBEE;--color-changing: #E53935;--color-success: #4CAF50;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--shadow-sm: 0 1px 3px rgba(0,0,0,.08);--shadow-md: 0 4px 12px rgba(0,0,0,.1);--font-mono: "Courier New", monospace;--max-width: 800px;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-text-size-adjust:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Helvetica,Arial,sans-serif;background:#f9f7f7;color:var(--color-text);line-height:1.6;min-height:100vh}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;border:none;font-family:inherit;font-size:inherit}textarea{font-family:inherit;font-size:inherit}#app-root{display:flex;flex-direction:column;min-height:100vh}.app-main{flex:1;display:flex;flex-direction:column}.app-header{background:var(--color-primary);color:#fff;padding:var(--spacing-sm) var(--spacing-md);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm);position:sticky;top:0;z-index:100}.header-logo{display:flex;align-items:center;gap:var(--spacing-sm);color:#fff;text-decoration:none;font-size:1.25rem;font-weight:600}.header-logo:hover{text-decoration:none;opacity:.9}.logo-icon{font-size:1.5rem}.home-page{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-xl) var(--spacing-md);gap:var(--spacing-xl)}.hero{text-align:center}.hero-title{font-size:2.5rem;color:var(--color-primary);margin-bottom:var(--spacing-xs)}.hero-subtitle{font-size:1.1rem;color:var(--color-text-secondary)}.hero-disclaimer{font-size:.92rem;color:#999;margin-top:8px}.input-card{width:100%;max-width:520px;background:var(--color-surface);border-radius:var(--radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-md);display:flex;flex-direction:column;gap:var(--spacing-md)}.question-input{width:100%;padding:var(--spacing-md);border:2px solid var(--color-border);border-radius:var(--radius-md);font-size:1rem;line-height:1.6;resize:vertical;min-height:100px;outline:none;transition:border-color .2s}.question-input:focus{border-color:var(--color-primary)}.question-input:disabled{background:#f5f0eb;cursor:not-allowed}.submit-btn{padding:var(--spacing-md) var(--spacing-xl);background:var(--color-primary);color:#fff;border-radius:var(--radius-md);font-size:1.05rem;font-weight:600;display:flex;align-items:center;justify-content:center;gap:var(--spacing-sm);transition:background .2s,opacity .2s}.submit-btn:hover:not(:disabled){background:var(--color-primary-dark)}.submit-btn:disabled{opacity:.5;cursor:not-allowed}.example-list{border-top:1px solid var(--color-border);padding-top:var(--spacing-md)}.example-title{font-size:.92rem;color:#999;margin:0 0 var(--spacing-sm) 0}.example-items{display:flex;flex-wrap:wrap;gap:var(--spacing-sm)}.example-item{display:inline-block;padding:4px 12px;font-size:.85rem;color:var(--color-primary);background:#fdf5ed;border:1px solid #e8d5c0;border-radius:14px;cursor:pointer;transition:background .15s}.example-item:hover{background:#f5e4d0}.icp-footer{margin-top:auto;padding:var(--spacing-md)}.icp-footer a{font-size:.75rem;color:#bbb;text-decoration:none}.icp-footer a:hover{color:#999}.chat-page{flex:1;display:flex;flex-direction:column;max-width:var(--max-width);width:100%;margin:0 auto;padding:var(--spacing-md);gap:var(--spacing-md);height:calc(100vh - 52px)}.toggle-bar{display:flex;gap:var(--spacing-lg);padding:8px 0;border-top:1px solid var(--color-border)}.toggle-item{display:flex;align-items:center;gap:6px;font-size:.88rem;color:var(--color-text-secondary);cursor:pointer;-webkit-user-select:none;user-select:none}.toggle-item input[type=checkbox]{width:16px;height:16px;accent-color:var(--color-primary);cursor:pointer}.error-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-md);text-align:center;color:var(--color-text-secondary)}.error-icon{width:48px;height:48px;border-radius:50%;background:var(--color-error-bg);color:var(--color-error);display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700}.back-link{color:var(--color-primary);font-weight:600}.message-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:var(--spacing-md);padding-bottom:var(--spacing-sm)}.message-wrapper{max-width:90%}.message--user{align-self:flex-end}.message--system{align-self:flex-start}.message-label{font-size:.8rem;color:var(--color-text-muted);margin-bottom:var(--spacing-xs);padding:0 var(--spacing-sm)}.message-round{margin-left:var(--spacing-sm);opacity:.7}.message-empty{text-align:center;color:var(--color-text-muted);padding:var(--spacing-xl)}.scroll-anchor{height:1px;flex-shrink:0}.message-bubble{padding:var(--spacing-md);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);line-height:1.7;word-break:break-word}.bubble--user{background:var(--color-user-bubble);border-bottom-right-radius:var(--spacing-xs)}.bubble--system{background:var(--color-system-bubble);border-bottom-left-radius:var(--spacing-xs);border:1px solid var(--color-border)}.bubble-content h3,.bubble-content h4{margin:var(--spacing-md) 0 var(--spacing-sm);color:var(--color-primary)}.bubble-content h3{font-size:1.15rem}.bubble-content h4{font-size:1.05rem}.bubble-content hr{border:none;border-top:1px solid var(--color-border);margin:var(--spacing-md) 0}.bubble-content br+br{display:none}.table-wrapper{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 0 var(--spacing-lg) 0;max-width:100%}.table-wrapper table{margin:0}.bubble-content table{border-collapse:collapse;font-size:.82rem;white-space:nowrap}.bubble-content thead{background:#f5ede0}.bubble-content th{padding:2px 4px;border:1px solid var(--color-border);text-align:center;font-weight:600;color:var(--color-primary);white-space:nowrap}.bubble-content td{padding:1px 4px;border:1px solid var(--color-border);text-align:center;vertical-align:middle;white-space:nowrap}.bubble-content tr:nth-child(n+7) td:nth-child(4),.bubble-content tr:nth-child(n+7) td:nth-child(7){width:2em;font-family:Courier New,monospace}.bubble-content .shensha-row td{white-space:normal;font-size:.78rem}.bubble-content td:nth-child(7),.bubble-content th:nth-child(7){display:none}.bubble-content tr:nth-child(-n+6) td,.bubble-content tr:nth-child(-n+6) th{background:#fdfaf5;font-size:.82rem;font-weight:400;color:inherit}.hd-card{background:#fff;border:1px solid #ccc;border-radius:5px;margin:0 0 var(--spacing-md) 0;overflow:hidden}.hd-header{background:#4aca6d;display:flex;justify-content:space-between;align-items:center;padding:10px 15px;color:#fff;font-size:1rem}.hd-header-left{display:flex;align-items:center;gap:6px;font-weight:600}.hd-icon{font-size:1.2rem}.hd-title{letter-spacing:3px}.hd-header-right{font-weight:700;font-size:.95rem}.hd-body{padding:5px 15px}.hd-row{display:flex;align-items:center;padding:8px 0;border-bottom:1px solid #eae2e2;font-size:.9rem}.hd-row:last-child{border-bottom:none}.hd-row--changing{background:#fff5f5;border-radius:3px;margin-top:2px;padding:8px 15px}.hd-label{color:#888;min-width:48px;flex-shrink:0;font-size:.92rem}.hd-value{color:#333;flex:1}.hd-value--strong{font-weight:700;color:var(--color-primary);font-size:1rem}.hd-value--changed{font-weight:700;color:#e53935;font-size:1rem}.hd-value--red{color:#e53935;font-weight:600}.hd-yao-section{border-top:1px solid #eae2e2;margin-top:2px}.hd-yao-header{display:flex;background:#f5f0eb;padding:8px 15px;font-size:.8rem;font-weight:600;color:#888}.hd-yao-row{display:flex;align-items:center;padding:6px 15px;border-bottom:1px solid #f0ece6;font-size:.95rem}.hd-yao-row:last-child{border-bottom:none}.hd-yao-row--changing{background:#fff0f0}.hd-yao-col--pos{width:55px;flex-shrink:0;color:#666;font-weight:600;font-size:.92rem}.hd-yao-col--yao{flex:1;text-align:center;font-size:1.15rem;letter-spacing:3px;font-family:monospace}.yao-line--solid{color:#333}.yao-line--broken{color:#999}.yao-line--red{color:#e53935;font-weight:700}.chat-input-area{background:var(--color-surface);border-top:1px solid var(--color-border);padding:var(--spacing-md);display:flex;flex-direction:column;gap:var(--spacing-sm);position:sticky;bottom:0}.chat-textarea{width:100%;padding:var(--spacing-sm) var(--spacing-md);border:2px solid var(--color-border);border-radius:var(--radius-md);font-size:.95rem;line-height:1.5;resize:none;outline:none;transition:border-color .2s}.chat-textarea:focus{border-color:var(--color-primary)}.chat-textarea:disabled{background:#f5f0eb;cursor:not-allowed}.chat-input-row{display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-md)}.chat-submit-btn{padding:var(--spacing-sm) var(--spacing-lg);background:var(--color-primary);color:#fff;border-radius:var(--radius-sm);font-weight:600;transition:background .2s,opacity .2s}.chat-submit-btn:hover:not(:disabled){background:var(--color-primary-dark)}.chat-submit-btn:disabled{opacity:.5;cursor:not-allowed}.chat-limit-hint{text-align:center;font-size:.92rem;color:var(--color-text-muted)}.loading-container{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-md)}.spinner{border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .8s linear infinite}.spinner--small{width:18px;height:18px;border-width:2px}.spinner--medium{width:32px;height:32px}.spinner--large{width:48px;height:48px}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{color:var(--color-text-muted);font-size:.9rem}.error-banner{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);background:var(--color-error-bg);border:1px solid var(--color-error);border-radius:var(--radius-sm);font-size:.9rem;color:var(--color-error)}.error-message{flex:1}.error-retry-btn{padding:var(--spacing-xs) var(--spacing-md);background:var(--color-error);color:#fff;border-radius:var(--spacing-xs);font-size:.92rem}.error-retry-btn:hover{opacity:.9}.error-dismiss-btn{background:none;color:var(--color-error);font-size:1.2rem;line-height:1;padding:0 var(--spacing-xs)}.error-dismiss-btn:hover{opacity:.7}@media (max-width: 640px){.hero-title{font-size:2rem}.message-wrapper{max-width:95%}.chat-page{padding:var(--spacing-sm)}.hd-yao-col--yao{font-size:1rem;letter-spacing:1px}}@media (min-width: 768px){.chat-page{padding:var(--spacing-lg)}.message-wrapper{max-width:75%}}