body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}#root{min-height:100vh}.detail-overlay{display:none}.detail-panel{width:100%;height:100%;background:transparent;display:flex;flex-direction:column;overflow:hidden}.detail-header{background:#fff;color:#1a1a1a;padding:1.5rem;display:flex;justify-content:space-between;align-items:flex-start;position:sticky;top:0;z-index:10;border-bottom:.5px solid #e8e8e8;flex-shrink:0}.node-type-badge{display:inline-block;background:#f5f5f5;color:#666;padding:.35rem .85rem;border-radius:6px;font-size:.75rem;font-weight:400;margin-bottom:.65rem;letter-spacing:.3px;border:.5px solid #e8e8e8}.node-title{font-size:1.35rem;font-weight:400;margin:0;line-height:1.3;display:flex;align-items:center;gap:.5rem;color:#1a1a1a}.completed-check{color:#1a1a1a;font-size:1.35rem;font-weight:400}.close-button{background:#f5f5f5;border:.5px solid #e8e8e8;color:#666;width:36px;height:36px;border-radius:50%;font-size:1.25rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease;flex-shrink:0}.close-button:hover{background:#e0e0e0;border-color:#1a1a1a;color:#1a1a1a;transform:scale(1.05)}.detail-content{flex:1;padding:1.5rem;overflow-y:auto;background:transparent}.detail-content::-webkit-scrollbar{width:4px}.detail-content::-webkit-scrollbar-track{background:transparent;border-radius:2px}.detail-content::-webkit-scrollbar-thumb{background:#d0d0d0;border-radius:2px}.detail-content::-webkit-scrollbar-thumb:hover{background:#999}.detail-section{margin-bottom:0;padding:1.5rem 0;border-bottom:.5px solid #f0f0f0}.detail-section:last-child{border-bottom:none;padding-bottom:0}.detail-section:first-child{padding-top:0}.detail-section h3{font-size:1rem;font-weight:400;color:#1a1a1a;margin:0 0 1rem;display:flex;align-items:center;gap:.5rem}.description{color:#666;line-height:1.65;font-size:.95rem;font-weight:300}.time-estimate{font-size:.95rem;font-weight:300;color:#666}.goals-list{list-style:none;padding:0;margin:0}.goals-list li{margin-bottom:.5rem;color:#666;font-size:.95rem;font-weight:300;line-height:1.6;padding:.65rem 0 .65rem 1.25rem;position:relative}.goals-list li:before{content:"•";position:absolute;left:0;color:#1a1a1a;font-weight:400;font-size:1.2rem}.goals-list li:last-child{margin-bottom:0}.resources-list{display:flex;flex-direction:column;gap:0}.resource-card{background:transparent;padding:.875rem 0;border-radius:0;text-decoration:none;color:inherit;transition:all .2s ease;border-bottom:.5px solid #f0f0f0;cursor:pointer;display:block}.resource-card:last-child{border-bottom:none}.resource-card:hover{background:#f5f5f5;padding-left:.5rem}.resource-header{display:flex;align-items:center;gap:.75rem;margin-bottom:.75rem}.resource-icon{font-size:1.5rem}.resource-type{font-size:.95rem;color:#999;font-weight:300;text-transform:capitalize;flex:1}.difficulty-badge{font-size:.75rem;padding:.25rem .75rem;border-radius:6px;font-weight:400;background:#f5f5f5;color:#666;border:.5px solid #e8e8e8}.difficulty-badge.beginner,.difficulty-badge.intermediate,.difficulty-badge.advanced{background:#f5f5f5;color:#666}.resource-title{font-size:.95rem;font-weight:400;color:#1a1a1a;margin:0 0 .5rem}.resource-url{font-size:.85rem;color:#666;font-weight:300;margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.prerequisites-hint{color:#999;margin-bottom:1rem;font-size:.95rem;font-weight:300}.prerequisites-list{display:flex;flex-wrap:wrap;gap:.5rem}.prerequisite-badge{background:#f5f5f5;color:#666;padding:.5rem 1rem;border-radius:6px;font-size:.85rem;font-weight:400;border:.5px solid #e8e8e8}.detail-panel::-webkit-scrollbar{width:8px}.detail-panel::-webkit-scrollbar-track{background:transparent}.detail-panel::-webkit-scrollbar-thumb{background:#58c9b9;border-radius:4px}.detail-panel::-webkit-scrollbar-thumb:hover{background:#519d9e}.ai-explain-button{width:100%;padding:1.25rem 2rem;background:linear-gradient(135deg,#4299e1,#3182ce);color:#fff;border:none;border-radius:12px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:.5rem;box-shadow:0 4px 12px #4299e14d}.ai-explain-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 16px #4299e166;background:linear-gradient(135deg,#4299e1,#2b6cb0)}.ai-explain-button:disabled{opacity:.6;cursor:not-allowed}.spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}.error-message{color:#fc8181;margin-top:.75rem;font-size:.9rem;text-align:center}.ai-explanation{background:linear-gradient(135deg,#f5f7fa,#c3cfe2);padding:1.5rem;border-radius:12px;margin-top:1rem}.ai-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:2px solid rgba(88,201,185,.2)}.ai-header h3{margin:0;color:#58c9b9;font-size:1.3rem}.refresh-button{background:#fff;border:2px solid #58C9B9;color:#58c9b9;padding:.5rem 1rem;border-radius:8px;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .3s ease}.refresh-button:hover{background:#58c9b9;color:#fff}.explanation-section{background:#fff;padding:1.25rem;border-radius:10px;margin-bottom:1rem;box-shadow:0 2px 8px #0000000d}.explanation-section h4{font-size:1.1rem;font-weight:700;color:#fffffff2;margin-bottom:.75rem;display:flex;align-items:center;gap:.5rem}.explanation-text{color:#ffffffbf;line-height:1.7;font-size:1rem}.example-list,.key-points-list,.mistakes-list,.tips-list{list-style:none;padding:0;margin:0}.example-list li,.key-points-list li,.mistakes-list li,.tips-list li{padding:.75rem 1rem;margin-bottom:.5rem;border-radius:8px;line-height:1.6;font-size:.95rem}.example-list li,.key-points-list li,.mistakes-list li,.tips-list li{background:transparent;border-left:none;color:#ffffffd9;padding-left:0}@media (max-width: 768px){.detail-panel{left:20px!important;top:80px!important;right:20px;bottom:auto;width:auto!important;max-width:calc(100vw - 40px)!important;max-height:calc(100vh - 100px)}.detail-header{padding:1.5rem}.node-title{font-size:1.5rem}.detail-content{padding:1.5rem}.ai-header{flex-direction:column;align-items:flex-start;gap:1rem}.ai-explanation{padding:1rem}}.node-actions{margin-top:0;padding:1.5rem;background:#fafafa;border:.5px solid #e8e8e8;border-radius:8px;margin-bottom:1.5rem}.action-buttons{display:flex;gap:1rem;flex-wrap:wrap}.action-button{flex:1;min-width:200px;padding:1rem 1.5rem;border:.5px solid #e8e8e8;border-radius:8px;font-size:1rem;font-weight:400;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:.5rem;background:#fff;color:#666;box-shadow:0 1px 3px #0000000d}.action-button:hover{transform:translateY(-1px);box-shadow:0 2px 6px #0000001a;background:#f5f5f5;border-color:#1a1a1a;color:#1a1a1a}.action-button.completed{background:#1a1a1a;color:#fff;border-color:#1a1a1a}.action-button.completed:hover{background:#000}.regenerate-button{background:#1a1a1a;color:#fff;border-color:#1a1a1a}.regenerate-button:hover{background:#000}.button-icon{font-size:1.1rem}.regenerate-section{background:#fafafa;border-radius:8px;padding:1.25rem;border:.5px solid #e8e8e8}.regenerate-section h3{color:#1a1a1a;margin-bottom:.75rem;font-size:.9rem;font-weight:400}.regenerate-hint{color:#666;font-size:.875rem;font-weight:300;margin-bottom:.85rem;line-height:1.6}.regenerate-textarea{width:100%;padding:.75rem;border:.5px solid #d0d0d0;border-radius:8px;font-size:.875rem;font-family:inherit;font-weight:300;resize:vertical;background:#fff;color:#1a1a1a;transition:all .2s ease;min-height:100px}.regenerate-textarea:focus{outline:none;border-color:#1a1a1a;box-shadow:0 0 0 .5px #1a1a1a}.regenerate-textarea::placeholder{color:#999;font-weight:300}.regenerate-buttons{display:flex;gap:1rem;margin-top:1rem}.regenerate-submit-button,.regenerate-cancel-button{flex:1;padding:.7rem 1.25rem;border-radius:8px;font-size:.9rem;font-weight:400;cursor:pointer;transition:all .2s ease}.regenerate-submit-button{background:#1a1a1a;color:#fff;border:none}.regenerate-submit-button:hover{background:#000;transform:translateY(-1px)}.regenerate-cancel-button{background:#fff;color:#666;border:.5px solid #e8e8e8}.regenerate-cancel-button:hover{background:#f5f5f5;border-color:#1a1a1a;color:#1a1a1a}.auth-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#12241e2e;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.auth-modal{position:relative;background:linear-gradient(160deg,#fffffff5,#f2faf6f5);border:1px solid rgba(102,185,156,.18);border-radius:24px;padding:40px;max-width:400px;width:100%;box-shadow:0 28px 60px #122a212e}.auth-close{position:absolute;top:20px;right:20px;background:transparent;border:none;width:28px;height:28px;color:#1b362d66;font-size:18px;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center}.auth-close:hover{color:#1b362dcc}.auth-header{text-align:center;margin-bottom:28px}.auth-header h2{font-size:1.8rem;font-weight:700;letter-spacing:-.02em;color:#0f2a22;margin-bottom:6px}.auth-header p{color:#1f483b99;font-size:.95rem;font-weight:400}.auth-form{display:flex;flex-direction:column;gap:16px}.form-group{display:flex;flex-direction:column;gap:6px}.form-group label{color:#1c3f34b3;font-size:.8rem;font-weight:500;letter-spacing:.06em;text-transform:uppercase}.form-group input{padding:12px 14px;background:#e4f4ec99;border:1px solid rgba(102,185,156,.28);border-radius:14px;color:#15362d;font-size:.95rem;font-weight:400;outline:none;transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;box-shadow:inset 0 0 #66b99c2e}.form-group input::placeholder{color:#1b362d61;font-weight:400}.form-group input:focus{border-color:#63ba9a;background:#eef9f4f2;box-shadow:0 0 0 4px #63ba9a33,inset 0 1px #fff6}.auth-error{background:#e056481a;border:1px solid rgba(224,86,72,.3);border-radius:12px;padding:10px 16px;color:#9b3f34;font-size:.86rem;font-weight:400;text-align:center}.auth-submit{padding:14px 0;background:linear-gradient(135deg,#60b494,#4aa381);border:none;border-radius:999px;color:#fff;font-size:1rem;font-weight:600;letter-spacing:.04em;text-transform:none;cursor:pointer;transition:background .2s ease,transform .2s ease,box-shadow .2s ease;margin-top:8px;box-shadow:0 20px 38px #43a38347}.auth-submit:hover:not(:disabled){background:linear-gradient(135deg,#69c09f,#55b08c);transform:translateY(-1px);box-shadow:0 22px 44px #4faa8a52}.auth-submit:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}.auth-switch{text-align:center;margin-top:24px;color:#1f483b99;font-size:.9rem;font-weight:400}.switch-button{background:none;border:none;color:#2f8e6f;font-weight:600;cursor:pointer;margin-left:4px;transition:color .2s ease}.switch-button:hover{color:#206854}@media (max-width: 768px){.auth-modal{padding:42px 28px;max-width:100%}.auth-header h2{font-size:2rem}.form-group input{padding:12px 14px}}.verification-code-group{display:flex;gap:12px}.verification-code-group input{flex:1}.send-code-btn{padding:0 20px;background:#e4f4ec99;border:1px solid rgba(102,185,156,.28);border-radius:16px;color:#2f8e6f;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .2s ease;white-space:nowrap;min-width:120px}.send-code-btn:hover:not(:disabled){background:#eef9f4f2;border-color:#63ba9a;color:#206854}.send-code-btn:disabled{opacity:.6;cursor:not-allowed;background:#0000000d;color:#0000004d;border-color:transparent}.expand-overlay{display:none}.expand-dialog{width:100%;height:100%;background:transparent;overflow:hidden;display:flex;flex-direction:column}.expand-header{background:#fff;color:#1a1a1a;padding:1.5rem;display:flex;justify-content:space-between;align-items:flex-start;border-bottom:.5px solid #e8e8e8;flex-shrink:0}.expand-title{font-size:1.3rem;font-weight:400;margin:0 0 .35rem;line-height:1.3;color:#1a1a1a}.expand-subtitle{font-size:.875rem;opacity:.8;margin:0;font-weight:300;color:#666}.expand-close-button{background:#f5f5f5;border:.5px solid #e8e8e8;color:#666;width:40px;height:40px;border-radius:50%;font-size:1.5rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s cubic-bezier(.4,0,.2,1);flex-shrink:0}.expand-close-button:hover{background:#e0e0e0;border-color:#1a1a1a;color:#1a1a1a;transform:rotate(90deg) scale(1.1)}.expand-content{padding:1.5rem;background:transparent;flex:1;overflow-y:auto}.expand-hint{margin:0 0 1rem;color:#666;font-size:.875rem;font-weight:300;line-height:1.6}.expand-textarea{width:100%;padding:.875rem;border:.5px solid #d0d0d0;border-radius:8px;font-size:.875rem;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-weight:300;resize:vertical;min-height:120px;height:120px;background:#fff;color:#1a1a1a;transition:all .2s ease;box-sizing:border-box}.expand-textarea::placeholder{color:#999;font-weight:300}.expand-textarea:focus{outline:none;border-color:#1a1a1a;box-shadow:0 0 0 .5px #1a1a1a}.expand-buttons{display:flex;gap:.75rem;margin-top:1.25rem}.expand-submit-button,.expand-cancel-button{flex:1;padding:.875rem 1.25rem;border-radius:8px;font-size:.9rem;font-weight:400;cursor:pointer;transition:all .2s ease}.expand-submit-button{background:#1a1a1a;color:#fff;border:none}.expand-submit-button:hover{background:#000;transform:translateY(-1px)}.expand-cancel-button{background:#fff;color:#666;border:.5px solid #e8e8e8}.expand-cancel-button:hover{background:#f5f5f5;border-color:#1a1a1a;color:#1a1a1a;transform:translateY(-1px)}.expand-content::-webkit-scrollbar{width:4px}.expand-content::-webkit-scrollbar-track{background:transparent}.expand-content::-webkit-scrollbar-thumb{background:#d0d0d0;border-radius:2px}.expand-content::-webkit-scrollbar-thumb:hover{background:#999}.ai-overlay{display:none}.ai-dialog{width:100%;height:100%;max-height:100%;background:transparent;display:flex;flex-direction:column;overflow:hidden}.ai-dialog-header{background:#fff;color:#1a1a1a;padding:1.5rem;display:flex;justify-content:space-between;align-items:flex-start;border-bottom:.5px solid #e8e8e8;flex-shrink:0}.ai-dialog-title{font-size:1.3rem;font-weight:400;margin:0 0 .35rem;line-height:1.3;color:#1a1a1a}.ai-dialog-subtitle{font-size:.875rem;opacity:.8;margin:0;font-weight:300;color:#666}.ai-dialog-close-button{background:#f5f5f5;border:.5px solid #e8e8e8;color:#666;width:40px;height:40px;border-radius:50%;font-size:1.5rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s cubic-bezier(.4,0,.2,1);flex-shrink:0}.ai-dialog-close-button:hover{background:#e0e0e0;border-color:#1a1a1a;color:#1a1a1a;transform:rotate(90deg) scale(1.1)}.ai-dialog-content{flex:1 1 auto;overflow-y:auto;overflow-x:hidden;padding:0;background:transparent;min-height:0}.ai-input-section{padding:1.5rem;display:flex;flex-direction:column;gap:1rem;flex-shrink:0}.ai-input-hint{color:#ffffffb3;font-size:.875rem;line-height:1.6;margin:0;text-align:center}.ai-question-input{width:100%;padding:.875rem;border:1px solid rgba(255,255,255,.2);border-radius:10px;font-size:.875rem;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;resize:vertical;min-height:120px;height:120px;background:#0003;color:#ffffffe6;transition:all .2s ease;box-sizing:border-box}.ai-question-input::placeholder{color:#fff6}.ai-question-input:focus{outline:none;border-color:#ffffff80;box-shadow:0 0 0 3px #ffffff14;background:#0000004d}.ai-input-buttons{display:flex;gap:.75rem}.ai-direct-button,.ai-submit-button{flex:1;padding:.875rem 1.25rem;border:none;border-radius:10px;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .2s ease}.ai-direct-button{background:#ffffff14;color:#fffc;border:1px solid rgba(255,255,255,.2)}.ai-direct-button:hover{background:#ffffff26;color:#fff;border-color:#ffffff4d;transform:translateY(-1px)}.ai-submit-button{background:#fffffff2;color:#1a1a2e;box-shadow:0 2px 8px #0003}.ai-submit-button:hover{background:#fff;transform:translateY(-1px);box-shadow:0 4px 12px #00000040}.ai-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem 1.5rem;text-align:center;gap:1rem;flex-shrink:0}.spinner{width:40px;height:40px;border:4px solid rgba(255,255,255,.2);border-top-color:#ffffffe6;border-radius:50%;animation:spin 1s linear infinite}.ai-loading p{color:#ffffffb3;font-size:.9rem;margin:0}.cancel-loading-button{padding:.625rem 1.5rem;background:#ffffff14;color:#fffc;border:1px solid rgba(255,255,255,.2);border-radius:10px;font-size:.875rem;font-weight:600;cursor:pointer;transition:all .2s ease}.cancel-loading-button:hover{background:#ffffff26;color:#fff;border-color:#ffffff4d;transform:translateY(-1px)}.ai-error{display:flex;flex-direction:column;align-items:center;padding:1.5rem;text-align:center;flex-shrink:0}.error-message{color:#e74c3c;font-size:.9rem;margin-bottom:1rem}.retry-button{padding:.7rem 1.5rem;background:#fffffff2;color:#1a1a2e;border:none;border-radius:10px;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .2s ease;box-shadow:0 2px 8px #0003}.retry-button:hover{background:#fff;transform:translateY(-1px);box-shadow:0 4px 12px #00000040}.ai-explanation-content{display:flex;flex-direction:column;gap:0;padding:1.5rem;flex-shrink:0}.ai-section{padding:1.25rem 0;border-bottom:.5px solid #f0f0f0}.ai-section:last-child{border-bottom:none;padding-bottom:.5rem}.ai-section:first-child{padding-top:0}.ai-section h3{font-size:1rem;font-weight:400;color:#1a1a1a;margin:0 0 1rem;display:flex;align-items:center;gap:.5rem}.ai-section p{color:#666;line-height:1.75;font-size:.9rem;font-weight:300;margin:0;white-space:pre-wrap}.math-text{color:#ffffffd9}.math-text .math-inline{display:inline;color:#fffffff2}.math-text .math-block{margin:1rem 0;padding:1rem;background:#4299e114;border-radius:8px;border-left:3px solid #4299e1;overflow-x:auto}.math-text .katex{color:#fffffff2!important;font-size:1.05em}.math-text .katex-display{margin:0}.math-text .katex .mord,.math-text .katex .mbin,.math-text .katex .mrel,.math-text .katex .mop,.math-text .katex .mpunct,.math-text .katex .minner,.math-text .katex .mopen,.math-text .katex .mclose{color:#fffffff2!important}.math-text .katex .frac-line{border-bottom-color:#fffc!important}.math-text .katex .sqrt>.root{color:#ffffffd9!important}.ai-section .example-list{list-style:none;padding:0;margin:0}.ai-section .example-list li{padding:.75rem 0;margin-bottom:0;color:#ffffffd9;font-size:.875rem;line-height:1.6;border-bottom:1px solid rgba(255,255,255,.08)}.ai-section .example-list li:last-child{border-bottom:none}.ai-bottom-buttons{display:flex;gap:.75rem;margin-top:.75rem;margin-bottom:0;padding:0}.back-button,.refresh-button{flex:1;padding:.625rem 1rem;border:none;border-radius:10px;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center;gap:.5rem;background:transparent;color:#ffffffd9}.back-button:hover,.refresh-button:hover{color:#fff;transform:translateY(-1px)}.ai-dialog-content::-webkit-scrollbar{width:4px}.ai-dialog-content::-webkit-scrollbar-track{background:transparent;border-radius:2px}.ai-dialog-content::-webkit-scrollbar-thumb{background:#d0d0d0;border-radius:2px}.ai-dialog-content::-webkit-scrollbar-thumb:hover{background:#999}@media (max-width: 768px){.ai-dialog{left:16px!important;top:60px!important;right:16px;width:auto!important;max-width:calc(100vw - 32px)!important}.ai-dialog-header{padding:1.25rem}.ai-dialog-title{font-size:1.25rem}.ai-dialog-content{padding:1.25rem}.ai-section{padding:1rem}.ai-input-section{padding:1.25rem}.ai-input-buttons,.ai-bottom-buttons{flex-direction:column}}@font-face{font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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) format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.23"}.katex .katex-mathml{clip:rect(1px,1px,1px,1px);border:0;height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}.document-chat-container{display:flex;flex-direction:column;width:100%;height:100%;background:#fff;box-sizing:border-box;position:relative;overflow:hidden}.chat-view-tabs{display:flex;gap:0;border-bottom:1px solid #e0e0e0;background:#fafafa;flex-shrink:0}.chat-tab{flex:1;padding:12px 16px;background:transparent;border:none;border-bottom:2px solid transparent;font-size:14px;color:#666;cursor:pointer;transition:all .2s}.chat-tab:hover{background:#f5f5f5;color:#1a1a1a}.chat-tab.active{background:#fff;border-bottom-color:#1a1a1a;color:#1a1a1a;font-weight:500}.paragraphs-view{flex:1;overflow:hidden}.paragraphs-loading,.paragraphs-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:#999;font-size:14px}.loading-spinner-small{width:32px;height:32px;border:3px solid #f0f0f0;border-top-color:#1a1a1a;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:16px}.document-summary-inline{background:linear-gradient(135deg,#f5f5f5,#fafafa);border:1px solid #e0e0e0;border-radius:12px;padding:18px 20px 16px;box-shadow:0 2px 8px #0000000a;margin-bottom:24px}.summary-content{width:100%}.summary-title{font-size:14px;font-weight:600;color:#1a1a1a;margin:0 0 12px;letter-spacing:.5px}.summary-text{font-size:14px;line-height:1.7;color:#444;margin:0}.summary-text p{margin:.5em 0}.summary-text p:first-child{margin-top:0}.summary-text p:last-child{margin-bottom:0}.summary-text strong{font-weight:600;color:#222}.summary-text em{font-style:italic;color:#555}.summary-text code{background:#f5f5f5;padding:2px 6px;border-radius:3px;font-family:Monaco,Consolas,monospace;font-size:.9em;color:#d63384}.summary-text ul,.summary-text ol{margin:.5em 0;padding-left:1.5em}.summary-text li{margin:.25em 0}.summary-text h1,.summary-text h2,.summary-text h3,.summary-text h4{margin:.8em 0 .4em;font-weight:600;color:#333}.summary-text h1{font-size:1.3em}.summary-text h2{font-size:1.2em}.summary-text h3{font-size:1.1em}.summary-text h4{font-size:1em}.summary-text a{color:#1976d2;text-decoration:none}.summary-text a:hover{text-decoration:underline}.summary-text blockquote{border-left:3px solid #ddd;padding-left:1em;margin:.5em 0;color:#666;font-style:italic}.summary-text pre{background:#f5f5f5;padding:12px;border-radius:6px;overflow-x:auto;margin:.5em 0}.summary-text pre code{background:none;padding:0;color:inherit}.summary-keywords-editor{margin-top:16px;padding-top:12px;border-top:1px dashed #e5e7eb}.summary-keywords-header{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px}.summary-keywords-title{display:flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:#111827}.summary-keywords-icon{font-size:14px}.summary-keywords-save-btn{border:none;border-radius:999px;padding:4px 10px;font-size:12px;cursor:pointer;background:#111827;color:#fff;transition:background .2s ease,transform .1s ease}.summary-keywords-save-btn:disabled{background:#e5e7eb;color:#9ca3af;cursor:default}.summary-keywords-save-btn:not(:disabled):hover{background:#020617;transform:translateY(-.5px)}.summary-keywords-loading{font-size:12px;color:#6b7280}.summary-keywords-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}.summary-keywords-empty{font-size:12px;color:#9ca3af}.summary-keyword-chip{display:inline-flex;align-items:center;gap:4px;padding:4px 8px;border-radius:999px;background:#f3f4f6;border:1px solid #e5e7eb}.summary-keyword-input{border:none;background:transparent;font-size:12px;color:#111827;outline:none;width:auto;min-width:0}.summary-keyword-input::placeholder{color:#9ca3af}.summary-keyword-delete{border:none;background:transparent;color:#9ca3af;cursor:pointer;padding:0 2px;font-size:14px;line-height:1}.summary-keyword-delete:hover{color:#ef4444}.summary-keywords-add-row{display:flex;align-items:center;gap:8px;margin-top:4px}.summary-keywords-add-input{flex:1;border-radius:999px;border:1px solid #e5e7eb;padding:6px 10px;font-size:12px;outline:none;background:#fff}.summary-keywords-add-input:focus{border-color:#111827}.summary-keywords-add-btn{border-radius:999px;border:1px solid #e5e7eb;padding:4px 10px;font-size:12px;background:#f9fafb;cursor:pointer;color:#111827}.summary-keywords-add-btn:disabled{opacity:.5;cursor:default}.summary-keywords-add-btn:not(:disabled):hover{background:#e5e7eb}.flowchart-display{background:#fff;border:1px solid #e0e0e0;border-radius:12px;padding:24px;margin-bottom:24px;box-shadow:0 2px 8px #0000000a}.flowchart-header{margin-bottom:16px;padding-bottom:16px;border-bottom:2px solid #e0e0e0}.flowchart-icon{display:none}.flowchart-title{font-size:18px;font-weight:600;color:#1a1a1a;margin:0}.flowchart-overview{margin-bottom:20px}.flowchart-overview p{font-size:14px;line-height:1.7;color:#555;margin:0}.flowchart-nodes h4{font-size:14px;font-weight:600;color:#1a1a1a;margin:0 0 16px;letter-spacing:.5px}.nodes-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px}.node-card{background:#fafafa;border:1px solid #e0e0e0;border-radius:8px;padding:14px;display:flex;gap:12px;align-items:flex-start;transition:all .2s ease;cursor:default}.node-card:hover{background:#f5f5f5;box-shadow:0 2px 6px #0000000f}.node-number{flex-shrink:0;width:28px;height:28px;background:#1a1a1a;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600}.node-content{flex:1;max-width:760px}.node-content h5{font-size:13px;font-weight:600;color:#1a1a1a;margin:0 0 6px;line-height:1.4}.node-content p{font-size:12px;line-height:1.5;color:#666;margin:0}.chat-messages{flex:1;overflow-y:auto;padding:60px 24px 24px;display:flex;flex-direction:column;gap:20px;min-height:0}.chat-empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;opacity:.6}.chat-empty-icon{font-size:48px;margin-bottom:16px}.chat-empty-text{font-size:14px;font-weight:300;color:#999;line-height:1.6;margin:0}.chat-message{display:flex;align-items:flex-start;animation:fadeIn .3s ease-in-out}.chat-message.user{flex-direction:row-reverse}.chat-message.annotation-message.user .message-text{background:#cfe5fc;color:#1a1a1a}.chat-message.annotation-message.ai .message-text{background:#e8f4fd;border-color:#b8d8f0}.message-content{flex:1;min-width:0}.message-stats{display:inline-flex;align-items:center;gap:6px;font-size:11px;color:#999;font-weight:300;margin-left:auto}.message-stats .stat-item{white-space:nowrap}.message-stats .stat-separator{color:#ddd;font-weight:300}.annotation-group-tag{margin-left:auto;font-size:12px;color:#4a90e2;font-weight:600;padding-left:12px}.message-text{padding:12px 16px;border-radius:12px;font-size:14px;font-weight:300;line-height:1.6;word-wrap:break-word;overflow-wrap:break-word}.chat-message.user .message-text{background:#1a1a1a;color:#fff;margin-left:auto;max-width:80%;width:fit-content;min-width:60px}.chat-message.ai .message-text{background:#f5f5f5;color:#333;border:1px solid #e0e0e0}.chat-message.error .message-text{background:#fff5f5;color:#d32f2f;border:1px solid #ffe0e0}.sources-title{font-size:12px;font-weight:500;color:#666;margin-bottom:8px}.source-item{font-size:12px;font-weight:300;color:#999;line-height:1.5;padding:6px 0;border-top:1px solid #f0f0f0}.source-item:first-child{border-top:none;padding-top:0}.thinking-message{display:flex;align-items:center;gap:8px;padding:12px 0}.thinking-text{font-size:14px;color:#999;font-weight:300}.typing-indicator{display:flex;gap:4px;padding:0}.typing-indicator span{width:8px;height:8px;background:#999;border-radius:50%;animation:typing 1.4s infinite}.typing-indicator span:nth-child(2){animation-delay:.2s}.typing-indicator span:nth-child(3){animation-delay:.4s}@keyframes typing{0%,60%,to{transform:translateY(0);opacity:.5}30%{transform:translateY(-8px);opacity:1}}.iteration-status{display:flex;flex-direction:column;gap:12px}.iteration-progress{display:flex;flex-direction:column;gap:8px}.iteration-text{font-size:13px;color:#666;font-weight:500;animation:pulse 2s ease-in-out infinite}.iteration-reasoning{font-size:12px;color:#999;font-style:italic;padding:6px 10px;background:#f5f5f5;border-radius:4px;border-left:2px solid #ddd}.iteration-queries{display:flex;flex-direction:column;gap:4px;margin-top:4px}.query-item{font-size:11px;color:#888;padding:4px 8px;background:#fafafa;border-radius:3px;border-left:2px solid #e0e0e0}.chat-settings{padding:12px 24px;background:#fafafa;border-top:1px solid #e0e0e0}.setting-item{display:flex;flex-direction:column;gap:8px}.setting-label{display:flex;align-items:center;gap:8px;cursor:pointer;-webkit-user-select:none;user-select:none}.setting-checkbox{width:16px;height:16px;cursor:pointer;accent-color:#1a1a1a}.setting-text{font-size:13px;color:#333;font-weight:400}.setting-hint{font-size:11px;color:#999;font-weight:300;margin-left:4px}.iteration-config{margin-left:24px;padding:8px 12px;background:#fff;border-radius:6px;border:1px solid #e0e0e0}.iteration-label{display:flex;align-items:center;gap:8px;font-size:12px;color:#666}.iteration-select{padding:4px 8px;border:1px solid #e0e0e0;border-radius:4px;font-size:12px;background:#fff;color:#333;cursor:pointer;transition:border-color .2s}.iteration-select:hover{border-color:#999}.iteration-select:focus{outline:none;border-color:#1a1a1a}.chat-input-form{padding:16px 24px;background:transparent;display:flex;flex-direction:column;gap:16px;flex-shrink:0;align-items:stretch;margin:0 auto;width:100%;box-sizing:border-box}.chat-input-box{width:100%;margin:0 auto;background:#f6f7f9;border:1px solid #e1e4e8;border-radius:14px;padding:10px 16px 8px;display:flex;flex-direction:column;gap:8px;box-shadow:0 10px 24px #0f172a0a}.chat-input-wrapper{flex:1;display:flex;flex-direction:column;gap:8px}.annotation-text-readonly{padding:4px 0;background:transparent;border:none;border-radius:0;box-shadow:none;max-height:140px;overflow-y:auto;margin-bottom:4px}.readonly-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}.readonly-label{font-size:12px;color:#888;font-weight:500}.readonly-close-btn{background:none;border:none;font-size:24px;line-height:1;color:#999;cursor:pointer;padding:0;width:20px;height:20px;display:flex;align-items:center;justify-content:center;border-radius:4px;transition:all .2s}.readonly-close-btn:hover{background:#f0f0f0;color:#666}.readonly-close-btn:active{background:#e0e0e0}.readonly-content{font-size:13px;color:#3f3f46;line-height:1.5;white-space:pre-wrap;word-break:break-word;padding:0;background:transparent;border-radius:0;border:none}.chat-additional-input{padding:4px 2px;border:none;border-radius:0;font-size:14px;color:#1f2937;background:transparent;resize:none;outline:none;font-family:inherit;min-height:32px;line-height:1.4}.chat-additional-input:focus{border:none}.chat-additional-input::placeholder{color:#bbb}.annotation-actions-panel{margin-top:16px;padding:12px 16px;background:#f8faff;border:1px solid #d0e8ff;border-radius:8px;display:flex;flex-direction:column;gap:12px}.annotation-badge{font-size:12px;font-weight:600;color:#4a90e2;letter-spacing:.5px}.annotation-buttons{display:flex;gap:8px}.annotation-action-btn{flex:none;padding:6px 12px;border:1px dashed #4a90e2;border-radius:10px;font-size:12px;font-weight:500;cursor:pointer;transition:all .2s ease;display:inline-flex;align-items:center;justify-content:center;height:32px;white-space:nowrap}.annotation-action-btn.save{background:transparent;color:#1d4ed8}.annotation-action-btn.save:hover:not(:disabled){color:#1e3a8a;border-color:#1e3a8a}.annotation-action-btn.save:disabled{color:#93c5fd;border-color:#93c5fd;cursor:not-allowed;background:transparent}.annotation-action-btn.close{background:transparent;color:#4b5563;border-color:#9ca3af}.annotation-action-btn.close:hover{color:#1f2937;border-color:#6b7280}.chat-input-textarea{padding:4px 2px;border:none;border-radius:0;font-size:14px;color:#1f2937;background:transparent;resize:none;outline:none;font-family:inherit;min-height:28px;max-height:120px;line-height:1.4}.chat-input-textarea:focus{border:none}.chat-input-textarea::placeholder{color:#999}.chat-input-textarea:disabled{background:#f5f5f5;color:#999;cursor:not-allowed}.chat-input{flex:1;padding:12px 16px;border:1px solid #e0e0e0;border-radius:8px;font-size:14px;font-weight:300;color:#333;background:#fff;transition:border-color .2s;font-family:inherit}.chat-input:focus{outline:none;border-color:#000}.chat-input:disabled{background:#f5f5f5;color:#999;cursor:not-allowed}.chat-input-textarea::placeholder{color:#9aa0a6}.chat-send-button{width:36px;height:36px;border-radius:999px;border:none;background:#0f172a;color:#fff;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:transform .2s ease,background .2s ease,box-shadow .2s ease;padding:0}.chat-send-button:hover:not(:disabled){background:#15213a;transform:translateY(-1px);box-shadow:0 10px 20px #0f172a3d}.chat-send-button:disabled{background:#e0e0e0;color:#999;cursor:not-allowed;box-shadow:none;transform:none}.chat-send-icon{display:block;width:20px;height:20px;pointer-events:none}.chat-input-textarea.annotation-mode-input{color:#0f172a}.chat-input-textarea.annotation-mode-input::placeholder{color:#4a6fb0}.chat-actions-row{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:0;width:100%;padding-top:6px;border-top:1px solid transparent}.chat-actions-left{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.chat-actions-right{display:flex;align-items:center;gap:12px}.chat-dropdown{position:relative}.chat-dropdown-trigger{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:20px;border:1px solid transparent;background:transparent;font-size:12px;font-weight:500;color:#94a3b8;cursor:pointer;font-family:inherit;transition:all .2s ease}.chat-dropdown-trigger:hover:not(.disabled){color:#475569;background-color:#f1f5f9;border-color:#e2e8f0}.chat-dropdown-trigger.disabled{opacity:.6;cursor:not-allowed}.chat-dropdown-label{color:#9ca3af}.chat-dropdown-value{color:#6b7280}.chat-dropdown-icon{font-size:10px;color:#9ca3af}.chat-dropdown-menu{position:absolute;right:0;bottom:calc(100% + 4px);min-width:140px;background:#fff;border-radius:10px;border:1px solid #e5e7eb;box-shadow:0 8px 20px #0f172a1f;padding:4px;z-index:20}.chat-dropdown-option{display:flex;width:100%;padding:6px 10px;border:none;border-radius:6px;background:transparent;font-size:12px;text-align:left;color:#4b5563;cursor:pointer;font-family:inherit;transition:all .15s ease}.chat-dropdown-option:hover{background:#f3f4f6}.chat-dropdown-option.active{background:#0f172a;color:#fff}.message-actions{display:flex;gap:3px;margin-top:4px;justify-content:flex-end;height:22px}.message-action-btn{padding:2px 6px;background:transparent;border:1px solid #e0e0e0;border-radius:3px;font-size:11px;color:#666;cursor:pointer;transition:all .2s ease}.message-action-btn:hover{background:#f5f5f5;border-color:#999}.message-action-btn.edit:hover,.message-action-btn.copy:hover,.message-action-btn.save-to-notes:hover{background:#f0f0f0;border-color:#999}.message-action-btn.save-to-notes:disabled{opacity:.5;cursor:not-allowed}.message-action-btn.save-to-notes:disabled:hover{background:transparent;border-color:#e0e0e0}.message-edit{width:100%}.edit-textarea{width:100%;padding:12px;border:1px solid #1a1a1a;border-radius:8px;font-size:14px;font-family:inherit;line-height:1.5;resize:vertical;min-height:80px}.edit-textarea:focus{outline:none;border-color:#000}.edit-actions{margin-top:8px;display:flex;gap:8px;justify-content:flex-end}.edit-actions button{padding:6px 12px;border-radius:6px;font-size:13px;font-weight:500;cursor:pointer;transition:all .2s ease;border:none}.btn-save{background:#1a1a1a;color:#fff}.btn-save:hover{background:#2a2a2a}.btn-cancel{background:#f5f5f5;color:#666;border:1px solid #e0e0e0}.btn-cancel:hover{background:#e5e5e5}.message-text *{box-sizing:border-box}.message-text h1,.message-text h2,.message-text h3,.message-text h4,.message-text h5,.message-text h6{margin:8px 0 4px!important;padding:0!important;font-weight:600;line-height:1.3!important}.message-text h1{font-size:1.3em!important}.message-text h2{font-size:1.15em!important}.message-text h3{font-size:1.05em!important}.message-text p{margin:0 0 4px!important;padding:0!important;line-height:1.5!important}.message-text p:last-child{margin-bottom:0!important}.message-text ul,.message-text ol{margin:4px 0 6px 28px!important;padding:0!important;line-height:1.6!important;list-style-position:outside!important}.message-text li{margin:0!important;padding:0 0 0 8px!important;line-height:1.6!important;display:list-item!important}.message-text li>*{display:inline!important;margin:0!important}.message-text li>*:first-child{display:inline!important}.message-text ul>li{list-style-type:disc!important;list-style-position:outside!important}.message-text ol>li{list-style-type:decimal!important;list-style-position:outside!important}.message-text ul ul,.message-text ol ul,.message-text ul ol,.message-text ol ol{margin:2px 0 2px 20px!important}.message-text code{background:#f5f5f5;padding:2px 6px;border-radius:4px;font-family:Consolas,Monaco,Courier New,monospace;font-size:.9em;color:#d73a49}.message-text pre{background:#f6f8fa;padding:10px;border-radius:6px;overflow-x:auto;margin:8px 0;border:1px solid #e1e4e8}.message-text pre code{background:transparent;padding:0;color:inherit;font-size:.9em;line-height:1.5}.message-text blockquote{border-left:3px solid #ddd;padding-left:12px;margin:8px 0;color:#666;font-style:italic}.message-text a{color:#0366d6;text-decoration:none}.message-text a:hover{text-decoration:underline}.message-text table{border-collapse:collapse;width:100%;margin:8px 0;font-size:.95em}.message-text th,.message-text td{border:1px solid #ddd;padding:6px 10px;text-align:left}.message-text th{background:#f6f8fa;font-weight:600}.message-text hr{border:none;border-top:1px solid #e1e4e8;margin:12px 0}.message-text strong{font-weight:600}.message-text em{font-style:italic}.chat-messages::-webkit-scrollbar{width:6px}.chat-messages::-webkit-scrollbar-track{background:transparent}.chat-messages::-webkit-scrollbar-thumb{background:#d0d0d0;border-radius:3px}.chat-messages::-webkit-scrollbar-thumb:hover{background:#b0b0b0}.message-sources{margin-top:12px;padding:0;background:transparent;border:none}.sources-header{font-size:12px;color:#999;margin-bottom:0;font-weight:400;-webkit-user-select:none;user-select:none}.sources-header.clickable{transition:color .2s ease}.sources-header.clickable:hover{color:#666}.sources-list{display:flex;flex-direction:column;gap:12px;margin-top:12px}.source-item{background:transparent;border:none;border-radius:0;padding:0;transition:all .2s ease;display:flex;align-items:baseline;gap:8px;line-height:1.7}.source-item:hover{opacity:.8}.source-label{font-size:11px;color:#999;font-weight:400;flex-shrink:0}.source-text{font-size:13px;line-height:1.7;color:#333;white-space:pre-wrap;word-break:break-word;flex:1}.source-toggle-btn{background:transparent;border:none;color:#999;font-size:12px;cursor:pointer;padding:0;text-decoration:underline;transition:opacity .2s ease;flex-shrink:0;margin-left:4px}.source-toggle-btn:hover{opacity:.7}.document-info-panel{width:100%;height:100%;background:#fff;padding:48px 24px 32px;overflow-y:scroll;display:flex;flex-direction:column;gap:0;box-sizing:border-box;position:relative}.info-header{position:absolute;top:8px;left:24px;right:50px;margin-bottom:0;background:transparent;z-index:10;display:flex;align-items:center}.info-icon{display:none}.info-title{font-size:18px;font-weight:600;color:#1a1a1a;margin:0;letter-spacing:-.5px;background:transparent}.info-section{display:flex;flex-direction:row;align-items:baseline;gap:8px;padding:12px 0}.info-section:last-of-type{border-bottom:none}.info-label{font-size:14px;font-weight:400;color:#666;white-space:nowrap;min-width:80px}.info-label:after{content:"："}.info-value{font-size:14px;color:#1a1a1a;word-break:break-word;line-height:1.5;flex:1}.info-value.time{font-size:13px;color:#666}.new-chat-btn{margin-top:20px;width:100%;padding:12px;background:#1a1a1a;color:#fff;border:none;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease}.new-chat-btn:hover{background:#2a2a2a}.document-name-section{display:block!important;padding:0!important;margin:0 -24px 16px!important}.document-name-container{position:relative;display:flex;align-items:center;padding:8px 24px;min-height:44px}.document-name-clickable{display:flex;align-items:center;gap:8px;padding:0;cursor:pointer;transition:all .2s ease;width:100%;min-width:0}.document-name-clickable.hidden{opacity:0;pointer-events:none}.document-icon{font-size:20px;line-height:1;flex-shrink:0}.document-icon-badge{display:flex;align-items:center;justify-content:center;width:32px;height:20px;background:linear-gradient(135deg,#ff6b6b,#ee5a6f);color:#fff;font-size:9px;font-weight:600;border-radius:4px;flex-shrink:0;letter-spacing:.3px}.document-name-text{flex:1;font-size:15px;font-weight:500;color:#1a1a1a;line-height:1.4;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.document-content-viewer{margin:0 0 24px}.content-header,.content-label,.close-content-btn{display:none}.content-text{padding:0;font-size:13px;line-height:1.8;color:#444;max-height:400px;overflow-y:auto;white-space:pre-wrap;word-break:break-word}.content-text::-webkit-scrollbar{width:4px}.content-text::-webkit-scrollbar-track{background:transparent}.content-text::-webkit-scrollbar-thumb{background:#e0e0e0;border-radius:2px}.content-text::-webkit-scrollbar-thumb:hover{background:#ccc}.sessions-container{margin-top:24px;padding-top:0}.sessions-title{font-size:18px;font-weight:600;color:#1a1a1a;margin-bottom:20px;padding:0;letter-spacing:-.5px}.sessions-loading,.sessions-empty{padding:20px 12px;text-align:center;font-size:13px;color:#999;line-height:1.6}.sessions-empty-hint{font-size:12px;color:#bbb}.session-item{padding:10px 12px;margin-bottom:8px;cursor:pointer;transition:all .2s ease}.session-item:hover{background:#f5f5f5}.session-item.active{background:#1a1a1a;color:#fff;font-weight:600}.session-question{font-size:13px;line-height:1.4;margin-bottom:6px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.session-meta{display:flex;justify-content:space-between;align-items:center;font-size:11px;opacity:.7}.session-item.active .session-meta{opacity:1}.document-info-panel::-webkit-scrollbar{width:6px}.document-info-panel::-webkit-scrollbar-track{background:transparent}.document-info-panel::-webkit-scrollbar-thumb{background:#e0e0e0;border-radius:3px}.document-info-panel::-webkit-scrollbar-thumb:hover{background:silver}.document-menu-container{position:relative;flex-shrink:0}.document-menu-btn{background:transparent;border:none;color:#999;font-size:18px;cursor:pointer;padding:0 4px;transition:all .2s ease;border-radius:4px;line-height:1;display:flex;align-items:center;justify-content:center;width:20px;height:20px}.document-menu-btn:hover{color:#333;background:#f5f5f5}.menu-overlay{position:fixed;top:0;left:0;right:0;bottom:0;z-index:100}.document-menu-dropdown{position:absolute;top:100%;left:0;background:#fff;border:1px solid #e0e0e0;border-radius:6px;box-shadow:0 4px 12px #0000001a;z-index:101;min-width:140px;margin-top:4px;overflow:hidden}.menu-item{display:flex;align-items:center;gap:8px;width:100%;padding:10px 16px;background:#fff;border:none;color:#1a1a1a;font-size:14px;text-align:left;cursor:pointer;transition:all .2s ease}.document-rename-input{width:100%;height:100%;padding:6px 10px;border:1px solid #ddd;border-radius:4px;font-size:14px;color:#1a1a1a;outline:none;transition:border-color .2s ease;box-sizing:border-box;min-width:0;background:#fff}.document-rename-overlay{position:absolute;left:24px;right:24px;top:8px;bottom:8px;z-index:3;display:flex;align-items:center}.document-rename-input:focus{border-color:#999}.annotation-section{margin-top:24px;padding-top:0}.annotation-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;gap:8px}.annotation-title-wrapper{display:flex;align-items:center;gap:6px}.annotation-title{font-size:18px;font-weight:600;color:#1a1a1a;margin:0;padding:0;letter-spacing:-.5px;white-space:nowrap}.annotation-hint{font-size:12px;color:#999;white-space:nowrap;overflow:hidden;text-overflow:clip;flex-shrink:1}.annotation-search-container{margin-bottom:12px;position:relative}.annotation-search-input{width:100%;padding:4px 32px 4px 12px;border:1px solid #e0e0e0;border-radius:16px;font-size:13px;color:#333;background:#f9f9f9;outline:none;transition:all .2s ease;box-sizing:border-box}.annotation-search-input:focus{background:#fff;border-color:#999;box-shadow:0 2px 6px #0000000d}.annotation-search-icon{position:absolute;right:10px;top:50%;transform:translateY(-50%);color:#999;font-size:14px;pointer-events:none}.search-highlight{background-color:#fff59d;color:#1a1a1a;border-radius:2px;padding:0 2px;box-shadow:0 0 0 1px #ffeb3b80}.search-highlight.active{background-color:#ff9800;color:#fff;box-shadow:0 0 0 2px #ff980080}.annotation-actions{position:absolute;display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding:8px 14px;border-radius:10px;background:#fffffffa;box-shadow:0 12px 28px #1f232924;transform:translate(-50%,calc(-100% - 18px));z-index:10;white-space:normal;max-width:min(90vw,420px)}.annotation-loading{padding:30px 12px;text-align:center;font-size:13px;color:#666;display:flex;flex-direction:column;align-items:center;gap:12px}.annotation-loading:before{content:"";width:32px;height:32px;border:3px solid #f0f0f0;border-top-color:#1a1a1a;border-radius:50%;animation:spin 1s linear infinite}.annotation-empty{padding:20px 12px;text-align:center;font-size:13px;color:#999}.annotation-content{position:relative}.fulltext-preview{padding:0;background:transparent;border:none;font-size:13px;line-height:1.8;color:#333;white-space:pre-wrap;word-break:break-word;-webkit-user-select:text;user-select:text;cursor:text;overflow:hidden;position:relative}.fulltext-preview.collapsed{max-height:52px;overflow:hidden}.fulltext-preview.collapsed:after{content:"";position:absolute;bottom:0;left:0;right:0;height:24px;background:linear-gradient(180deg,transparent 0%,#ffffff 100%);pointer-events:none}.fulltext-preview.expanded{max-height:600px;overflow-y:scroll}.fulltext-preview.expanded::-webkit-scrollbar{width:6px}.fulltext-preview.expanded::-webkit-scrollbar-track{background:transparent}.fulltext-preview.expanded::-webkit-scrollbar-thumb{background:#00000026;border-radius:3px;transition:background .2s ease}.fulltext-preview.expanded::-webkit-scrollbar-thumb:hover{background:#0000004d}.fulltext-preview::selection{background:#ffe58f;color:#1a1a1a}.fulltext-toggle{border:none;background:transparent;cursor:pointer;font-size:12px;color:#4a90e2;transition:transform .2s ease,color .2s ease}.fulltext-toggle.expanded{transform:rotate(180deg)}.fulltext-toggle:hover{color:#1a6ad7}.send-to-chat-btn-compact{padding:4px 10px;font-size:12px;font-weight:500;color:#c62828;background:#ffebee;border:1px solid #ffcdd2;border-radius:12px;cursor:pointer;transition:all .2s ease;white-space:nowrap;flex-shrink:0}.send-to-chat-btn-compact:hover{background:#ffcdd2;border-color:#ef9a9a;color:#b71c1c}.send-to-chat-btn-compact:active{transform:scale(.98)}.custom-annotation-btn{padding:4px 10px;font-size:12px;font-weight:500;color:#c62828;background:#ffebee;border:1px solid #ffcdd2;border-radius:12px;cursor:pointer;transition:all .2s ease;white-space:nowrap;flex-shrink:0}.custom-annotation-btn:hover{background:#ffcdd2;border-color:#ef9a9a;color:#b71c1c}.custom-annotation-btn:active{transform:scale(.98)}.custom-annotation-input-box{margin-bottom:12px;padding:12px;background:#f8f8f8;border-radius:6px}.annotation-question-input{width:100%;padding:10px 12px;border:1px solid #e0e0e0;border-radius:4px;font-size:13px;line-height:1.5;color:#333;resize:none;font-family:inherit;margin-bottom:10px;outline:none;transition:border-color .2s ease;background:#fff}.annotation-question-input:focus{border-color:#999}.annotation-question-input::placeholder{color:#bbb}.input-box-buttons{display:flex;gap:6px;justify-content:flex-end}.cancel-btn-small,.send-btn-small{padding:5px 14px;font-size:12px;border-radius:4px;cursor:pointer;transition:all .2s ease;font-weight:400}.cancel-btn-small{background:#fff;color:#666;border:1px solid #ddd}.cancel-btn-small:hover{background:#f5f5f5;border-color:#ccc}.send-btn-small{background:#1a1a1a;color:#fff;border:none}.send-btn-small:hover{background:#000}.landing-page{display:flex;flex-direction:column;gap:80px;padding:140px 48px 120px;background:linear-gradient(180deg,#fff,#f6f7fb);min-height:100vh;position:relative;overflow:hidden;isolation:isolate}.landing-page:before{content:"";position:absolute;top:120px;right:-280px;width:840px;height:360px;background:linear-gradient(115deg,#98dfc88c,#c2eede59 40%,#86d2bb73 65%,#def7ef33);border-radius:240px;transform:rotate(-8deg);filter:blur(.6px);opacity:.9;z-index:0;pointer-events:none;background-size:200% 100%;animation:heroRibbonFlow 18s ease-in-out infinite alternate;-webkit-mask-image:radial-gradient(65% 120% at 50% 50%,#000 45%,#0000);mask-image:radial-gradient(65% 120% at 50% 50%,#000 45%,#0000)}.landing-page:after{content:"";position:absolute;top:40px;right:-120px;width:420px;height:420px;background:radial-gradient(circle at 30% 40%,rgba(148,223,200,.24),transparent 70%);z-index:0;pointer-events:none}.knowledge-landing:before,.knowledge-landing:after{display:none}.landing-page>*{position:relative;z-index:1}.landing-hero{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:center;gap:48px;justify-items:center;position:relative;z-index:1}.landing-hero:before{content:"";position:absolute;left:-280px;bottom:-120px;width:620px;height:320px;background:linear-gradient(135deg,#7bcdb266,#a4e1cb47,#66baa173 64%,#5caa9485);border-radius:220px;transform:rotate(12deg);opacity:.75;pointer-events:none;filter:blur(.4px);background-size:210% 100%;animation:heroRibbonFlow 22s ease-in-out infinite alternate;z-index:0;-webkit-mask-image:radial-gradient(70% 120% at 42% 52%,#000 48%,#0000);mask-image:radial-gradient(70% 120% at 42% 52%,#000 48%,#0000)}.landing-ticker{width:100%;background:transparent;border-radius:20px;border:1px solid rgba(17,17,17,.06);height:52px;display:flex;align-items:center;overflow:hidden;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}.landing-ticker-track{display:inline-flex;gap:48px;padding:0 32px;animation:landingTicker 80s linear infinite;white-space:nowrap}.landing-ticker-item{font-size:14px;color:#4a4c50}@keyframes landingTicker{0%{transform:translate(0)}to{transform:translate(-50%)}}.hero-copy{display:flex;flex-direction:column;gap:24px;justify-self:center}.hero-badge{align-self:flex-start;padding:8px 16px;border-radius:999px;background:#1a1a1a14;color:#1a1a1a;font-size:13px;font-weight:500;letter-spacing:.6px}.landing-hero h1{font-size:54px;font-weight:800;line-height:1.08;letter-spacing:-1.6px;color:#0f1115}.landing-hero p{font-size:18px;line-height:1.7;color:#3b3d41;max-width:640px}.hero-actions{display:flex;gap:16px;align-items:center}.hero-btn{padding:12px 24px;border-radius:14px;font-size:15px;font-weight:500;border:none;cursor:pointer;transition:all .25s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px}.hero-btn.primary{background:#111;color:#fff;box-shadow:0 18px 40px #11111129}.hero-btn.primary:hover{transform:translateY(-1px);box-shadow:0 24px 48px #1113}.hero-btn.subtle{background:#1111110f;color:#111}.hero-btn.subtle:hover{background:#1111111a}.hero-metrics{display:flex;gap:32px;list-style:none;margin:12px 0 0;padding:0}.hero-metrics li{display:flex;flex-direction:column;gap:4px}.metric-value{font-size:28px;font-weight:700;color:#111}.metric-label{font-size:14px;color:#6b6d72;letter-spacing:.3px}.hero-visual{display:flex;align-items:center;justify-content:center;width:100%}.hero-carousel{position:relative;width:100%;max-width:520px;border-radius:36px;overflow:visible;background:linear-gradient(135deg,#ecf7f3,#d9efe7);isolation:isolate;aspect-ratio:4 / 3}.hero-carousel:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(160deg,#152d2614,#2f584a05 55%,#fff0);pointer-events:none;z-index:1;border-radius:inherit}.hero-card-stack{position:relative;width:100%;height:100%}.hero-image{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover;display:block;border-radius:36px}.hero-card{box-shadow:0 40px 80px #10182738;will-change:transform;transition:transform .6s cubic-bezier(.26,.8,.35,1),filter .6s ease,opacity .4s ease;pointer-events:none}.hero-card-active{pointer-events:auto}.landing-demo-list{display:flex;flex-direction:column;gap:72px;margin-top:72px}.landing-demo{display:flex;align-items:center;justify-content:center;gap:52px;max-width:1280px;margin:0 auto}.landing-demo.reverse{flex-direction:row-reverse}.demo-text{display:flex;flex-direction:column;gap:16px}.demo-text h2{font-size:34px;font-weight:700;line-height:1.2;color:#111;margin:0}.demo-text p{font-size:16px;line-height:1.7;color:#4a4c50;margin:0}.demo-video-wrapper{position:relative;border-radius:28px;overflow:hidden;background:#05060a;box-shadow:0 24px 60px #05060a57;max-width:660px}.demo-video{width:100%;height:100%;display:block;object-fit:cover}.demo-video-placeholder{height:100%;min-height:320px;display:flex;align-items:center;justify-content:center;text-align:center;color:#ffffffb3;font-size:14px;padding:36px}.demo-video-placeholder code{background:#ffffff1f;padding:2px 8px;border-radius:4px}.demo-badge{position:absolute;left:24px;bottom:24px;padding:10px 18px;border-radius:999px;background:#ffffffe0;color:#0f1115;font-size:13px;font-weight:600;letter-spacing:.4px}@media (max-width: 1024px){.landing-demo{flex-direction:column;text-align:center}.landing-hero:before{left:-200px;bottom:-160px;width:520px;height:300px;opacity:.58}.landing-demo.reverse{flex-direction:column}.demo-text{align-items:center}}.landing-bottom-cta{position:relative;width:100vw;margin-top:96px;margin-left:50%;transform:translate(-50%);padding:110px 0;display:flex;justify-content:center;overflow:hidden;background:#f3f4f6;isolation:isolate}.landing-bottom-cta:before,.landing-bottom-cta:after{display:none}.cta-card{width:min(1100px,calc(100% - 96px));display:flex;align-items:center;justify-content:space-between;gap:48px;color:#0f1115}.cta-text{display:flex;flex-direction:column;gap:16px;max-width:620px}.cta-text h2{font-size:38px;font-weight:700;margin:0;letter-spacing:-.5px;background:linear-gradient(120deg,#8cb8ff,#63ba9a 45%,#8cb8ff);background-size:220% 220%;color:transparent;-webkit-background-clip:text;background-clip:text;animation:ctaGradientFlow 8s ease-in-out infinite}.cta-text p{margin:0;font-size:18px;line-height:1.7;color:#121826b3}.cta-subtext{color:#121826b3}.landing-bottom-cta .hero-btn{min-width:240px;padding:18px 34px;border-radius:999px;background:linear-gradient(135deg,#63ba9a,#5aa6c6);color:#fff;font-weight:600;font-size:16px;box-shadow:none;border:none;transition:transform .3s ease,background .3s ease}.landing-bottom-cta .hero-btn:hover{transform:translateY(-2px);background:linear-gradient(135deg,#6fceb0,#67b4d4)}@media (max-width: 1200px){.landing-page{padding:120px 32px 100px}.landing-hero,.landing-demo{grid-template-columns:1fr;gap:32px}.landing-ticker-track{animation-duration:28s}.hero-visual{order:-1;justify-content:flex-start}.hero-carousel{max-width:480px;aspect-ratio:3 / 2}.landing-bottom-cta{margin-top:84px;padding:90px 0}.cta-card{width:min(960px,calc(100% - 64px));gap:40px}.cta-text h2{font-size:34px}}@media (max-width: 768px){.landing-page{padding:96px 20px 80px;gap:56px}.landing-hero:before{left:-340px;bottom:-140px;width:560px;height:260px;transform:rotate(6deg);opacity:.5}.landing-page:before{top:200px;right:-360px;width:680px;height:320px;transform:rotate(-4deg);opacity:.7}.landing-page:after{top:160px;right:-240px;width:320px;height:320px}.landing-hero h1{font-size:36px}.hero-carousel{max-width:100%;aspect-ratio:16 / 11}.hero-actions{flex-direction:column;align-items:stretch}.hero-metrics{flex-direction:column;gap:18px}.landing-demo{gap:24px}.landing-ticker{height:46px}.landing-bottom-cta{margin-top:72px;padding:72px 0 64px}.cta-card{flex-direction:column;align-items:flex-start;gap:32px;width:calc(100% - 40px)}.cta-text{align-items:flex-start;text-align:left;gap:12px}.cta-text h2{font-size:30px}.cta-text p{font-size:16px}.landing-bottom-cta .hero-btn{align-self:flex-start;width:100%;justify-content:center}}@media (max-width: 520px){.cta-text h2{font-size:26px}.cta-text p{font-size:15px}}@keyframes ctaGradientFlow{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}@keyframes ctaRibbonWave{0%{transform:translate(-20%) rotate(2deg) scale(.95)}50%{transform:translate(20%) rotate(-2deg) scale(1.05)}to{transform:translate(-20%) rotate(2deg) scale(.95)}}.knowledge-landing{position:relative;min-height:100vh;padding:96px 24px;display:flex;align-items:stretch;justify-content:flex-start;overflow:visible;background:transparent;color:#0f1115}.knowledge-landing .landing-content{position:absolute;left:64px;bottom:72px;z-index:2;max-width:520px;text-align:left;display:flex;flex-direction:column;gap:18px}.landing-corner{position:absolute;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-size:12px;color:#065f4666;letter-spacing:.1em;z-index:1;pointer-events:none;-webkit-user-select:none;user-select:none}.landing-corner.top-left{top:32px;left:32px}.landing-corner.top-right{top:32px;right:32px}.landing-corner.bottom-left{bottom:32px;left:32px}.landing-corner.bottom-right{bottom:32px;right:32px}@media (max-width: 768px){.landing-corner{display:none}}.knowledge-landing .landing-badge{align-self:flex-start;padding:8px 16px;border-radius:999px;background:#0f766e2e;border:1px solid rgba(45,212,191,.5);font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:#a5f3fc}.knowledge-landing h1{font-size:clamp(32px,4vw,44px);line-height:1.15;margin:0;font-weight:800;color:#020617}@media (min-width: 900px){.knowledge-landing .landing-content{max-width:760px}.knowledge-landing h1{white-space:nowrap}}.knowledge-landing p{margin:0;max-width:540px;font-size:16px;line-height:1.8;color:#065f46}.knowledge-landing .landing-actions{margin-top:8px}.knowledge-landing .hero-btn.primary{background:#111;color:#fff;box-shadow:0 14px 30px #0000002e;padding:10px 22px;border-radius:999px;font-size:14px}.knowledge-landing .hero-btn.primary:hover{transform:none;box-shadow:0 14px 30px #0000002e}.knowledge-landing .landing-footnote{font-size:13px;color:#94a3b8e6;display:flex;gap:16px;flex-wrap:wrap}.knowledge-landing-scroll-hint{margin-top:10px;margin-left:0;display:inline-block;padding:0 0 2px;border-radius:0;font-size:15px;font-weight:500;letter-spacing:.02em;text-transform:none;color:#065f46;background:transparent;border:none;cursor:pointer;align-self:flex-start;width:auto;white-space:nowrap;text-decoration:underline;text-underline-offset:3px}.knowledge-landing-scroll-hint:hover{color:#0f172a}.knowledge-landing-scroll-label{line-height:1}.knowledge-landing-scroll-icon{font-size:14px;line-height:1}@keyframes knowledgeScrollHintBounce{0%,to{transform:translateY(0);opacity:.65}50%{transform:translateY(4px);opacity:1}}.landing-about-section{position:relative;padding:72px 24px 96px;display:flex;justify-content:center;background:transparent;backdrop-filter:none;-webkit-backdrop-filter:none}.landing-about-card{width:min(920px,calc(100% - 48px));border-radius:24px;padding:26px 26px 24px;background:#ffffffe0;box-shadow:0 20px 60px #0f172a24;border:none;color:#111827}.landing-about-card h2{margin:0 0 12px;font-size:20px;font-weight:700;letter-spacing:.03em;position:relative;padding-left:16px}.landing-about-card p{margin:6px 0;font-size:15px;line-height:1.8;color:#374151}.landing-about-card h2:first-of-type{margin-top:0}.landing-about-card h2:not(:first-of-type){margin-top:20px;margin-bottom:12px}.landing-about-card h2:before{content:"";position:absolute;left:0;top:50%;width:8px;height:8px;border-radius:999px;background:linear-gradient(135deg,#63ba9a,#5aa6c6);transform:translateY(-50%)}.knowledge-background{position:fixed;top:0;right:0;bottom:0;left:0;overflow:hidden;pointer-events:none;z-index:0;perspective:1400px}.knowledge-canvas{width:100%;height:100%;display:block;filter:blur(.2px);opacity:.96}.knowledge-background:before,.knowledge-background:after{content:"";position:absolute;border-radius:999px;filter:blur(48px);opacity:.7}.knowledge-background:before{width:520px;height:520px;left:-120px;bottom:-120px;background:radial-gradient(circle at 30% 30%,rgba(45,212,191,.4),transparent 70%)}.knowledge-background:after{display:none}.knowledge-orbit{position:absolute;left:64%;top:52%;border-radius:50%;border:1px solid rgba(99,186,154,.3);transform-origin:center;transform-style:preserve-3d}.orbit-outer{width:620px;height:420px;margin-left:-310px;margin-top:-210px;opacity:.85;animation:knowledgeOrbitSpin 40s linear infinite}.orbit-middle{width:460px;height:320px;margin-left:-230px;margin-top:-160px;opacity:.9;animation:knowledgeOrbitSpinReverse 30s linear infinite}.orbit-inner{width:260px;height:200px;margin-left:-130px;margin-top:-100px;opacity:1;animation:knowledgeOrbitSpin 22s linear infinite;border-style:dashed;border-color:#94a3b88c}.orbit-node{position:absolute;width:9px;height:9px;border-radius:999px;background:radial-gradient(circle at 30% 30%,#63ba9a,#5aa6c6 50%,#8cb8ff 90%);box-shadow:0 0 16px #63ba9ae6}.orbit-outer .orbit-node:nth-child(1){top:0%;left:50%;transform:translate(-50%,-50%)}.orbit-outer .orbit-node:nth-child(2){top:18%;left:86%;transform:translate(-50%,-50%)}.orbit-outer .orbit-node:nth-child(3){top:50%;left:100%;transform:translate(-50%,-50%)}.orbit-outer .orbit-node:nth-child(4){top:82%;left:82%;transform:translate(-50%,-50%)}.orbit-outer .orbit-node:nth-child(5){top:100%;left:50%;transform:translate(-50%,-50%)}.orbit-outer .orbit-node:nth-child(6){top:82%;left:18%;transform:translate(-50%,-50%)}.orbit-outer .orbit-node:nth-child(7){top:50%;left:0%;transform:translate(-50%,-50%)}.orbit-outer .orbit-node:nth-child(8){top:18%;left:14%;transform:translate(-50%,-50%)}.orbit-outer .orbit-node:nth-child(9){top:36%;left:65%;transform:translate(-50%,-50%)}.orbit-outer .orbit-node:nth-child(10){top:64%;left:32%;transform:translate(-50%,-50%)}.orbit-middle .orbit-node:nth-child(1){top:0%;left:50%;transform:translate(-50%,-50%)}.orbit-middle .orbit-node:nth-child(2){top:30%;left:100%;transform:translate(-50%,-50%)}.orbit-middle .orbit-node:nth-child(3){top:100%;left:70%;transform:translate(-50%,-50%)}.orbit-middle .orbit-node:nth-child(4){top:100%;left:30%;transform:translate(-50%,-50%)}.orbit-middle .orbit-node:nth-child(5){top:30%;left:0%;transform:translate(-50%,-50%)}.orbit-middle .orbit-node:nth-child(6){top:50%;left:50%;transform:translate(-50%,-50%)}.orbit-inner .orbit-node:nth-child(1){top:0%;left:50%;transform:translate(-50%,-50%)}.orbit-inner .orbit-node:nth-child(2){top:50%;left:100%;transform:translate(-50%,-50%)}.orbit-inner .orbit-node:nth-child(3){top:100%;left:50%;transform:translate(-50%,-50%)}.orbit-inner .orbit-node:nth-child(4){top:50%;left:0%;transform:translate(-50%,-50%)}.orbit-core{position:absolute;left:64%;top:52%;width:132px;height:132px;margin-left:-66px;margin-top:-66px;border-radius:999px;background:radial-gradient(circle at 30% 20%,#e0f2fe 0%,#63ba9a 35%,#5aa6c6 75%,transparent 100%);box-shadow:0 0 26px #a3e6d5e6,0 0 80px #63ba9ab3,0 0 130px #8cb8ffa6;opacity:.95;animation:knowledgePulse 4.5s ease-in-out infinite}@keyframes knowledgeOrbitSpin{0%{transform:rotateX(64deg) rotate(-26deg) rotateY(0)}to{transform:rotateX(64deg) rotate(-26deg) rotateY(360deg)}}@keyframes knowledgeOrbitSpinReverse{0%{transform:rotateX(64deg) rotate(-26deg) rotateY(360deg)}to{transform:rotateX(64deg) rotate(-26deg) rotateY(0)}}@keyframes knowledgePulse{0%,to{transform:scale(.96);opacity:.9}50%{transform:scale(1.05);opacity:1}}@keyframes knowledgeTitleFlow{0%{background-position:center,-30% 50%}to{background-position:center,130% 50%}}@media (max-width: 768px){.knowledge-landing{padding:88px 18px}.knowledge-landing .landing-content{left:20px;right:20px;bottom:40px;max-width:none;text-align:left;align-items:flex-start}.knowledge-background{opacity:.9}.orbit-outer{width:520px;height:520px;margin-left:-260px;margin-top:-260px}.orbit-middle{width:360px;height:360px;margin-left:-180px;margin-top:-180px}.orbit-inner{width:220px;height:220px;margin-left:-110px;margin-top:-110px}}.confirm-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#fff9;display:flex;align-items:center;justify-content:center;z-index:1000000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);animation:fadeIn .3s ease-out}.confirm-modal{background:#fff;border-radius:24px;width:320px;box-shadow:0 20px 40px -10px #60b49433,0 0 0 1px #00000008;overflow:hidden;display:flex;flex-direction:column;align-items:center;padding:32px 24px 24px;position:relative}.confirm-content{text-align:center;margin-bottom:24px}.confirm-title{margin:0 0 8px;font-size:18px;font-weight:600;color:#134134;letter-spacing:-.3px}.confirm-message{margin:0;color:#666;font-size:14px;line-height:1.6}.confirm-checkbox-wrapper{margin-bottom:24px;width:100%;display:flex;justify-content:center}.confirm-checkbox-label{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:13px;color:#888;-webkit-user-select:none;user-select:none;transition:color .2s}.confirm-checkbox-label:hover{color:#60b494}.confirm-checkbox-label input[type=checkbox]{-moz-appearance:none;appearance:none;-webkit-appearance:none;width:16px;height:16px;border-radius:4px;border:1.5px solid #d1d5db;cursor:pointer;position:relative;transition:all .2s;margin:0}.confirm-checkbox-label input[type=checkbox]:checked{background-color:#60b494;border-color:#60b494}.confirm-checkbox-label input[type=checkbox]:checked:after{content:"";position:absolute;left:4px;top:1px;width:4px;height:8px;border:solid white;border-width:0 2px 2px 0;transform:rotate(45deg)}.confirm-actions{display:flex;gap:12px;width:100%}.confirm-btn-cancel{flex:1;padding:10px;border-radius:12px;border:1px solid #e5e7eb;background:#fff;color:#666;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s}.confirm-btn-cancel:hover{background:#f9fafb;color:#333;border-color:#d1d5db}.confirm-btn-submit{flex:1;padding:10px;border-radius:12px;border:none;background:linear-gradient(135deg,#8bd1b7,#72c3a5 48%,#60b494);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s;box-shadow:0 4px 12px #60b4944d}.confirm-btn-submit:hover{transform:translateY(-1px);box-shadow:0 6px 16px #60b49466}.confirm-btn-submit:active{transform:translateY(0)}.history-section{width:100%;margin:0;padding:0}.history-title{font-size:18px;font-weight:600;color:#1a1a1a;margin:0 0 20px;text-align:left}.history-group{margin-bottom:32px}.history-group-title{font-size:14px;font-weight:600;color:#888;margin:0 0 12px;text-align:left;text-transform:uppercase;letter-spacing:.5px}.history-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;width:100%}.history-card{background:#fafafa;border:1px solid #e5e5e5;border-radius:10px;overflow:hidden;display:flex;flex-direction:column;cursor:pointer;transition:border-color .2s ease;height:100%;min-width:0}.history-card:hover{border-color:#63ba9a;box-shadow:0 12px 26px #63ba9a29}.card-header{display:flex;justify-content:space-between;align-items:flex-start;padding:16px 16px 0;margin-bottom:12px;position:relative}.card-date{font-size:11px;font-weight:500;text-transform:uppercase;letter-spacing:.5px;color:#888}.card-size{font-size:11px;font-weight:400;color:#aaa}.card-title-row{display:flex;align-items:center;gap:10px;padding:0 16px;margin-bottom:8px;min-width:0;width:100%}.card-icon{font-size:1.5rem;flex-shrink:0;line-height:1;filter:grayscale(30%)}.card-content{flex:1;min-width:0;display:flex;flex-direction:column;padding:8px 16px 16px}.card-title{font-size:16px;font-weight:600;color:#1a1a1a;margin:0;line-height:1.4;letter-spacing:-.3px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0}.card-summary{font-size:13px;color:#666;font-weight:400;line-height:1.5;margin:0 0 16px;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;flex-grow:1}.card-button{width:100%;padding:8px 16px;background:#fff;border:1px solid #e0e0e0;border-radius:8px;color:#1a1a1a;font-size:13px;font-weight:500;cursor:pointer;transition:all .2s ease;margin-top:auto}.card-button:hover{background:#1a1a1a;color:#fff;border-color:#1a1a1a}.no-history{text-align:center;padding:24px 0}.no-history-text{display:inline-block;font-size:14px;color:#999;margin:0;padding:8px 16px;background:transparent;border:none}.history-empty-state{text-align:center;padding:48px 24px 64px;max-width:520px;margin:0 auto;display:flex;flex-direction:column;align-items:center;gap:12px}.history-empty-icon{font-size:48px;opacity:.75}.history-empty-state h4{margin:8px 0 0;font-size:20px;color:#1a1a1a;font-weight:600}.history-empty-state p{margin:0;color:#707070;font-size:15px;line-height:1.6}.history-empty-actions{margin:16px 0 0;padding:0;list-style:none;color:#8a8a8a;font-size:14px;line-height:1.8}.history-empty-actions li+li{margin-top:4px}@media (max-width: 1024px){.history-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 768px){.history-title{font-size:18px}.history-grid{grid-template-columns:1fr;gap:12px}.no-history{padding:24px 20px}}.card-menu-btn{background:none;border:none;padding:0 4px;font-size:18px;color:#666;cursor:pointer;transition:color .2s ease;line-height:1}.card-menu-btn:hover{color:#1a1a1a}.card-menu-dropdown{position:fixed;background:#fff;border:1px solid #ddd;border-radius:8px;box-shadow:0 2px 8px #00000026;z-index:9999;min-width:100px}.card-menu-item{display:block;width:100%;padding:10px 14px;background:#fff;border:none;text-align:left;font-size:13px;color:#333;cursor:pointer;border-radius:8px}.card-menu-item:hover{background:#f0f0f0}.card-menu-item.delete{color:#d32f2f}.card-menu-item.delete:hover{background:#ffebee}.workspace-dashboard{min-height:100vh;padding:80px 56px 120px;background:linear-gradient(180deg,#fff,#f6f7fb);display:flex;flex-direction:column;gap:48px;position:relative;overflow:hidden;isolation:isolate}.workspace-dashboard:before{content:"";position:absolute;top:120px;right:-280px;width:840px;height:360px;background:linear-gradient(115deg,#98dfc88c,#c2eede59 40%,#86d2bb73 65%,#def7ef33);border-radius:240px;transform:rotate(-8deg);filter:blur(.6px);opacity:.9;pointer-events:none;background-size:200% 100%;animation:heroRibbonFlow 18s ease-in-out infinite alternate;-webkit-mask-image:radial-gradient(65% 120% at 50% 50%,#000 45%,#0000);mask-image:radial-gradient(65% 120% at 50% 50%,#000 45%,#0000);z-index:0}.workspace-dashboard:after{content:"";position:absolute;top:40px;right:-120px;width:420px;height:420px;background:radial-gradient(circle at 30% 40%,rgba(148,223,200,.24),transparent 70%);z-index:0;pointer-events:none}.workspace-dashboard>*{position:relative;z-index:1}.workspace-header{display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center}.header-texts{display:flex;flex-direction:column;gap:12px;max-width:560px}.workspace-header h1{margin:0;font-size:34px;font-weight:700;letter-spacing:-.2px;color:#111}.workspace-header p{margin:0;font-size:15px;line-height:1.6;color:#4b4d52}.workspace-main{display:flex;flex-direction:column;align-items:center;gap:20px;position:relative;z-index:1}.workspace-main:before{content:"";position:absolute;left:-280px;bottom:-120px;width:620px;height:320px;background:linear-gradient(135deg,#7bcdb266,#a4e1cb47,#66baa173 64%,#5caa9485);border-radius:220px;transform:rotate(12deg);opacity:.75;pointer-events:none;filter:blur(.4px);background-size:210% 100%;animation:heroRibbonFlow 22s ease-in-out infinite alternate;z-index:0;-webkit-mask-image:radial-gradient(70% 120% at 42% 52%,#000 48%,#0000);mask-image:radial-gradient(70% 120% at 42% 52%,#000 48%,#0000)}.upload-card{width:100%;max-width:840px;padding:0;display:flex;align-items:center;justify-content:center;position:relative;cursor:pointer;transition:none;border:none;box-shadow:none;background:transparent}.upload-card:hover{transform:none}.upload-card.dragging{background:transparent}.upload-textarea{width:100%;max-width:720px;padding:20px 24px;border:none;border-radius:18px;resize:none;font-size:16px;line-height:1.7;color:#1a1a1a;background:#f5f6fa;border:1px solid transparent;transition:border-color .2s ease,background .2s ease;min-height:160px;box-shadow:none}.upload-textarea.file-selected{cursor:default;border-color:#111111e6;background:#fff}.upload-textarea:hover{border-color:#63ba9a;box-shadow:none}.upload-textarea:focus{outline:none;background:#fff;border-color:#63ba9a;box-shadow:0 0 0 4px #63ba9a2e}.clear-upload-icon{position:absolute;top:18px;right:18px;width:28px;height:28px;border:none;background:none;color:#11111173;font-size:20px;line-height:1;cursor:pointer;transition:color .2s ease;display:flex;align-items:center;justify-content:center}.clear-upload-icon:hover{color:#111111d9}.file-display{width:100%;padding:20px;border-radius:18px;background:#f6f7fa;display:flex;align-items:center;gap:16px;position:relative}.file-icon{font-size:32px;flex-shrink:0}.file-info{flex:1;display:flex;flex-direction:column;gap:4px}.file-name{margin:0;font-size:15px;font-weight:600;color:#111}.file-size{margin:0;font-size:12px;color:#6a6d72}.clear-btn{position:absolute;top:14px;right:14px;width:28px;height:28px;border-radius:50%;border:none;background:#11111114;color:#333;cursor:pointer;transition:background .2s ease,color .2s ease}.clear-btn:hover{background:#1a1a1a;color:#fff}.workspace-actions{display:flex;justify-content:center;width:100%;gap:16px}.action-secondary,.action-primary{min-width:140px;height:46px;padding:0 24px;border-radius:999px;font-size:15px;font-weight:600;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center}.action-secondary{border:1px solid #e0e0e0;background:#fff;color:#333}.action-secondary:hover{border-color:#60b494;color:#60b494;background:#f0f9f6}.action-primary{border:none;background:linear-gradient(135deg,#60b494,#4aa381);color:#fff}.action-primary:hover:not(:disabled){transform:translateY(-1px);background:linear-gradient(135deg,#69c09f,#55b08c);box-shadow:0 8px 20px #50a88633}.action-primary.inactive{background:linear-gradient(135deg,#7fc7a9,#6abf9d);color:#ffffffb3;cursor:not-allowed;box-shadow:none;transform:none;pointer-events:none;opacity:1}.history-wrapper{display:flex;justify-content:center}.history-wrapper .history-section{width:100%;max-width:1280px}.history-wrapper .history-title{text-align:center;font-size:20px}.history-wrapper .history-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}.history-wrapper .history-card{background:#fff}@media (max-width: 1200px){.workspace-dashboard{padding:72px 32px 100px}.workspace-dashboard:before{top:160px;right:-320px;width:720px;height:300px;opacity:.7}.workspace-dashboard:after{right:-200px;top:120px;width:320px;height:320px}.workspace-main:before{left:-220px;bottom:-160px;width:520px;height:300px;opacity:.6}.history-wrapper .history-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width: 768px){.workspace-dashboard{padding:64px 20px 80px;gap:32px}.workspace-dashboard:before{top:200px;right:-360px;width:680px;height:320px;opacity:.7;transform:rotate(-6deg)}.workspace-dashboard:after{right:-240px;top:200px;width:320px;height:320px}.workspace-main:before{left:-340px;bottom:-140px;width:560px;height:260px;transform:rotate(6deg);opacity:.5}.workspace-header h1{font-size:26px}.upload-card{padding:24px}.history-wrapper .history-grid{grid-template-columns:1fr}}@keyframes heroRibbonFlow{0%{background-position:0% 50%}to{background-position:100% 50%}}.kg-page{display:flex;gap:20px;padding:80px 40px 32px;max-width:1600px;margin:0 auto;min-height:calc(100vh - 80px);box-sizing:border-box}.kg-left{flex:2.2;display:flex;flex-direction:column}.kg-right{flex:.6;background:transparent;border-radius:0;box-shadow:none;padding:8px;overflow:auto;max-height:calc(100vh - 96px)}.kg-section-title{font-size:20px;font-weight:600;margin-bottom:4px}.kg-section-title-main{display:block}.kg-section-title-sub{display:block;margin-top:2px}.kg-section-subtitle{font-size:13px;color:#64748b;margin-bottom:16px}.kg-graph-container{width:100%;height:70vh;min-height:420px;border-radius:16px;background:#f8fafc;border:1px solid #e2e8f0;margin-bottom:16px;overflow:hidden;position:relative}.kg-graph-container-fullscreen{position:fixed;top:72px;left:24px;right:24px;bottom:24px;z-index:40;border-radius:16px;background:#f8fafc;border:1px solid #e2e8f0}.kg-page-graph-fullscreen{max-width:none}.kg-graph-actions-bottom-right{position:absolute;right:12px;bottom:12px;display:flex;flex-direction:column;align-items:flex-end;gap:4px;z-index:5}.kg-graph-actions-row{display:flex;align-items:center;gap:8px}.kg-graph-toggle{padding:4px 10px;border-radius:999px;border:1px solid #cbd5e1;background:#fffffff5;font-size:12px;color:#0f172a;cursor:pointer;box-shadow:0 6px 16px #0f172a1f;display:inline-flex;align-items:center;gap:4px}.kg-graph-toggle:hover{background:#e2e8f0}.kg-graph-svg{width:100%;height:100%}.kg-graph-node{fill:#0f766e;stroke:#ecfeff;stroke-width:1.2px;cursor:pointer}.kg-graph-node.active{fill:#b45309;stroke:#fffbeb}.kg-graph-link{stroke-linecap:round}.kg-graph-label{pointer-events:none}.kg-graph-label.active{font-weight:600;fill:#b45309}.kg-filter-bar{margin-bottom:12px;display:flex;flex-direction:column;gap:8px}.kg-filter-selected{display:flex;flex-wrap:wrap;gap:6px}.kg-filter-chip{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:999px;border:1px solid #0f172a;background:#0f172a;font-size:12px;color:#f9fafb;cursor:pointer}.kg-filter-chip-label{white-space:normal}.kg-filter-chip-remove{font-size:12px;line-height:1;cursor:pointer;color:#e5e7eb}.kg-filter-input-wrapper{position:relative}.kg-filter-input{width:100%;padding:6px 10px;border-radius:999px;border:1px solid #cbd5e1;font-size:13px;outline:none}.kg-filter-input:focus{border-color:#0f766e;box-shadow:0 0 0 1px #0f766e1f}.kg-filter-suggestions{position:absolute;bottom:100%;left:0;right:0;margin-bottom:4px;padding:6px 0;border-radius:12px;background:#fff;border:1px solid #e2e8f0;box-shadow:0 10px 30px #0f172a1f;max-height:220px;overflow:auto;z-index:10}.kg-filter-suggestion-item{width:100%;text-align:left;padding:6px 12px;border:none;background:transparent;font-size:13px;color:#0f172a;cursor:pointer}.kg-filter-suggestion-item:hover{background:#f1f5f9}.kg-node-cloud{display:flex;flex-wrap:wrap;gap:10px}.kg-node-chip{border:none;border-radius:999px;padding:6px 12px;background:#f1f5f9;color:#0f172a;font-size:13px;display:inline-flex;align-items:center;gap:8px;cursor:pointer;transition:background .15s ease,transform .1s ease}.kg-node-chip:hover{background:#e2e8f0;transform:translateY(-1px)}.kg-node-chip.active{background:#0f766e;color:#ecfeff}.kg-node-count{padding:0 8px;border-radius:999px;background:#0f172a14;font-size:11px}.kg-node-label{white-space:nowrap}.kg-meta{position:absolute;top:12px;right:12px;display:flex;align-items:center;gap:10px;padding:4px 10px;border-radius:999px;background:#fffffff5;border:1px solid #e2e8f0;font-size:12px;color:#64748b;box-shadow:0 6px 16px #0f172a1f;z-index:6}.kg-meta-actions{margin-left:auto;display:flex;align-items:center;gap:8px}.kg-manage-info{font-size:12px;color:#0f766e}.kg-manage-button{padding:4px 12px;border-radius:999px;border:1px solid #0f766e;background:#0f766e;font-size:12px;color:#ecfeff;cursor:pointer;display:inline-flex;align-items:center;gap:4px;transition:background .15s ease,transform .1s ease,box-shadow .15s ease}.kg-manage-button:hover:not(:disabled){background:#115e59;box-shadow:0 6px 16px #0f172a29;transform:translateY(-1px)}.kg-manage-button:disabled,.kg-manage-button-loading{opacity:.7;cursor:default;box-shadow:none;transform:none}.kg-manage-panel{position:absolute;top:16px;right:16px;width:320px;max-width:90%;background:#fff;border-radius:12px;border:1px solid #e2e8f0;box-shadow:0 18px 45px #0f172a38;padding:10px 12px 12px;z-index:10}.kg-manage-panel-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}.kg-manage-panel-title{font-size:13px;font-weight:600;color:#0f172a}.kg-manage-panel-close{border:none;background:transparent;font-size:16px;line-height:1;padding:0 4px;cursor:pointer;color:#64748b}.kg-manage-panel-close:hover{color:#0f172a}.kg-manage-panel-body{display:flex;flex-direction:column;gap:8px}.kg-manage-field{display:flex;flex-direction:column;gap:4px}.kg-manage-label{font-size:12px;color:#64748b}.kg-manage-input,.kg-manage-textarea,.kg-manage-select{width:100%;border-radius:8px;border:1px solid #cbd5e1;font-size:12px;padding:6px 8px;outline:none}.kg-manage-input:focus,.kg-manage-textarea:focus,.kg-manage-select:focus{border-color:#0f766e;box-shadow:0 0 0 1px #0f766e1f}.kg-manage-textarea{min-height:60px;resize:vertical}.kg-manage-panel-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:4px}.kg-manage-primary,.kg-manage-secondary,.kg-manage-danger{padding:4px 10px;border-radius:999px;font-size:12px;cursor:pointer;border:1px solid transparent;background:#e2e8f0;color:#0f172a}.kg-manage-primary{background:#0f766e;border-color:#0f766e;color:#ecfeff}.kg-manage-primary:hover:not(:disabled){background:#115e59}.kg-manage-secondary{background:#f8fafc;border-color:#cbd5e1}.kg-manage-secondary:hover:not(:disabled){background:#e2e8f0}.kg-manage-danger{background:#fef2f2;border-color:#fecaca;color:#b91c1c}.kg-manage-danger:hover:not(:disabled){background:#fee2e2}.kg-manage-primary:disabled,.kg-manage-secondary:disabled,.kg-manage-danger:disabled{opacity:.6;cursor:default}.kg-loading,.kg-error,.kg-empty{margin:40px auto;max-width:520px;text-align:center;color:#0f172a}.kg-error{color:#b91c1c}.kg-node-description{margin-bottom:12px;font-size:14px;color:#334155}.kg-doc-list{display:flex;flex-direction:column;gap:12px}.kg-doc-card{padding:12px 14px;border-radius:12px;background:#f8fafc;border:1px solid #e2e8f0}.kg-doc-title{font-size:15px;font-weight:600;margin-bottom:4px}.kg-doc-summary{font-size:13px;color:#475569;margin-bottom:6px}.kg-doc-meta{font-size:11px;color:#94a3b8}.kg-neighbor-card{position:absolute;top:16px;left:16px;width:320px;max-width:90%;max-height:60%;background:#fff;border-radius:12px;border:1px solid #e2e8f0;box-shadow:0 18px 45px #0f172a2e;padding:8px 10px 10px;z-index:8;display:flex;flex-direction:column}.kg-neighbor-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}.kg-neighbor-title{font-size:13px;font-weight:600;color:#0f172a}.kg-neighbor-close{border:none;background:transparent;font-size:16px;line-height:1;padding:0 4px;cursor:pointer;color:#64748b}.kg-neighbor-close:hover{color:#0f172a}.kg-neighbor-body{margin-top:2px;overflow:auto}.kg-neighbor-empty{font-size:12px;color:#64748b;margin:4px 0}.kg-neighbor-list{list-style:none;margin:0;padding:0}.kg-neighbor-list-item+.kg-neighbor-list-item{margin-top:4px}.kg-neighbor-item{width:100%;border:none;background:#f8fafc;border-radius:8px;padding:6px 8px;display:flex;align-items:center;justify-content:space-between;font-size:12px;cursor:pointer;color:#0f172a;text-align:left}.kg-neighbor-item:hover{background:#e2e8f0}.kg-neighbor-item-name{flex:1;margin-right:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.kg-neighbor-item-meta{flex-shrink:0;font-size:11px;color:#64748b}.kg-neighbor-more{margin-top:6px;align-self:flex-start;border:none;background:transparent;color:#0f766e;font-size:12px;cursor:pointer;padding:0}.kg-neighbor-more:hover{text-decoration:underline}.mindmap-wrapper{width:100%;height:100%;position:relative;background:linear-gradient(135deg,#fafafa,#f5f5f5);border-radius:12px;overflow:hidden;box-shadow:inset 0 0 20px #00000005}.mindmap-wrapper svg{display:block;cursor:grab;width:100%;height:100%}.mindmap-wrapper svg:active{cursor:grabbing}.link{fill:none;stroke:#bbb;stroke-width:1.5px;stroke-opacity:.5}.expand-button-group{transition:opacity .3s ease}.expand-button-group:hover .expand-button{filter:drop-shadow(0 3px 10px rgba(74,144,226,.6))}.expand-button-group:active .expand-button{filter:drop-shadow(0 2px 6px rgba(74,144,226,.4))}.expand-button{transition:filter .3s ease;filter:drop-shadow(0 2px 4px rgba(0,0,0,.2))}.expand-button.expanding{animation:pulse 1.5s ease-in-out infinite}.expand-icon{pointer-events:none;-webkit-user-select:none;user-select:none}.expand-icon.spinning{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.6}}.node-circle{stroke:#fff;stroke-width:2px;transition:all .3s ease}.node-circle.root{fill:#4a90e2;stroke:#fff;stroke-width:3px}.node-circle.level-1{fill:#66bb6a}.node-circle.level-2{fill:#ffa726}.node-circle.level-3{fill:#ab47bc}.node-text-bg{fill:#fff;opacity:.9;rx:4;ry:4;filter:drop-shadow(0 1px 2px rgba(0,0,0,.1))}.node-text{font-size:14px;font-weight:600;fill:#1a1a1a;pointer-events:none;-webkit-user-select:none;user-select:none}.node-description{font-size:11px;font-weight:400;fill:#666;pointer-events:none;-webkit-user-select:none;user-select:none;opacity:.8}.mindmap-controls{position:absolute;bottom:20px;left:50%;transform:translate(-50%);background:#4a90e2f2;padding:10px 20px;border-radius:24px;box-shadow:0 4px 12px #4a90e24d;pointer-events:none;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.mindmap-hint{margin:0;font-size:13px;color:#fff;font-weight:600;letter-spacing:.3px}@media (max-width: 768px){.node-text{font-size:12px}.node-description{font-size:10px}.mindmap-hint{font-size:11px}}.interview-dialog-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0006;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:9999999!important;padding:20px;animation:fadeIn .2s ease}.interview-dialog{background:#fff;border-radius:8px;box-shadow:0 2px 16px #00000026;border:1px solid #ddd;max-width:700px;width:100%;max-height:90vh;display:flex;flex-direction:column;overflow:hidden;animation:slideUp .3s ease}.interview-header{padding:16px 20px;border-bottom:1px solid #e0e0e0;display:flex;align-items:center;justify-content:space-between;background:#fafafa}.interview-header h2{margin:0;font-size:16px;font-weight:600;color:#333}.interview-close-btn{background:transparent;border:none;color:#666;width:28px;height:28px;border-radius:4px;cursor:pointer;font-size:18px;display:flex;align-items:center;justify-content:center;transition:all .15s}.interview-close-btn:hover{background:#e0e0e0;color:#333}.interview-progress-section{padding:12px 20px;background:#fff;border-bottom:1px solid #e0e0e0}.interview-progress-bar{width:100%;height:4px;background:#e0e0e0;border-radius:2px;overflow:hidden;margin-bottom:8px}.interview-progress-fill{height:100%;background:#333;transition:width .5s ease;border-radius:2px}.interview-progress-text{display:flex;justify-content:space-between;font-size:12px;color:#666;font-weight:400}.interview-content{flex:1;overflow-y:auto;padding:24px}.interview-state{min-height:400px;display:flex;flex-direction:column}.interview-initializing{align-items:center;justify-content:center;text-align:center}.interview-loading-spinner{width:48px;height:48px;border:4px solid #e5e7eb;border-top-color:#667eea;border-radius:50%;animation:interview-spin 1s linear infinite;margin-bottom:16px}@keyframes interview-spin{to{transform:rotate(360deg)}}.interview-loading-hint{color:#9ca3af;font-size:14px;margin-top:8px}.interview-questioning{gap:16px}.interview-question-section{background:#fafafa;border:1px solid #e0e0e0;padding:16px;border-radius:6px}.interview-question-title{margin:0 0 10px;font-size:13px;font-weight:600;color:#333}.interview-question-text{margin:0;font-size:14px;line-height:1.6;color:#333}.interview-hints{margin-top:10px;padding:10px;background:#f5f5f5;border-radius:4px;font-size:12px;display:flex;align-items:start;gap:6px;color:#666;border:1px solid #e8e8e8}.interview-hints-icon{flex-shrink:0;font-size:12px}.interview-answer-section{flex:1;display:flex;flex-direction:column}.interview-answer-label{font-size:13px;font-weight:600;color:#333;margin-bottom:8px;display:block}.interview-answer-textarea{flex:1;width:100%;padding:10px 12px;border:1px solid #d0d0d0;border-radius:4px;font-size:14px;line-height:1.5;resize:vertical;font-family:inherit;transition:border-color .2s;background:#fff}.interview-answer-textarea:focus{outline:none;border-color:#333}.interview-answer-textarea:disabled{background:#f5f5f5;cursor:not-allowed;color:#999;border-color:#e0e0e0}.interview-answer-footer{display:flex;justify-content:space-between;align-items:center;margin-top:10px}.interview-answer-count{font-size:12px;color:#999}.interview-submit-btn{padding:8px 20px;background:#333;color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:500;cursor:pointer;transition:background .2s}.interview-submit-btn:hover:not(:disabled){background:#000}.interview-submit-btn:disabled{opacity:.4;cursor:not-allowed}.interview-evaluating{align-items:center;gap:20px}.interview-evaluation-section{width:100%}.interview-score-circle{width:120px;height:120px;border-radius:50%;border:8px solid;display:flex;flex-direction:column;align-items:center;justify-content:center;margin:0 auto 24px;animation:interview-scale-in .5s ease}@keyframes interview-scale-in{0%{transform:scale(0)}to{transform:scale(1)}}.interview-score-number{font-size:36px;font-weight:700;line-height:1}.interview-score-label{font-size:14px;color:#6b7280;margin-top:4px}.interview-feedback,.interview-suggestions{background:#fafafa;border:1px solid #e0e0e0;padding:14px;border-radius:4px;margin-bottom:12px}.interview-feedback h4,.interview-suggestions h4{margin:0 0 8px;font-size:13px;font-weight:600;color:#333}.interview-feedback p,.interview-suggestions p{margin:0;font-size:13px;line-height:1.6;color:#666}.interview-keyword-coverage{display:flex;align-items:center;gap:12px;font-size:14px;color:#374151}.interview-coverage-bar{flex:1;height:8px;background:#e5e7eb;border-radius:4px;overflow:hidden}.interview-coverage-fill{height:100%;transition:width .5s ease;border-radius:4px}.interview-next-hint{text-align:center;color:#9ca3af;font-size:14px;margin-top:16px;animation:interview-pulse 2s infinite}@keyframes interview-pulse{0%,to{opacity:.6}50%{opacity:1}}.interview-completed{gap:16px}.interview-summary-section{width:100%}.interview-summary-title{text-align:center;margin:0 0 16px;font-size:18px;font-weight:600;color:#333}.interview-summary-stats{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px}.interview-stat-item{background:#fafafa;border:1px solid #e0e0e0;padding:16px;border-radius:6px;text-align:center}.interview-stat-number{font-size:24px;font-weight:600;color:#333;margin-bottom:4px}.interview-stat-label{font-size:12px;color:#999;font-weight:400}.interview-summary-content{display:flex;flex-direction:column;gap:12px}.interview-summary-block{background:#fafafa;border:1px solid #e0e0e0;padding:14px;border-radius:6px}.interview-summary-block h4{margin:0 0 8px;font-size:13px;font-weight:600;color:#333}.interview-summary-block p{margin:0;font-size:13px;line-height:1.6;color:#666}.interview-summary-block ul{margin:0;padding-left:18px;list-style:none}.interview-summary-block li{font-size:13px;line-height:1.7;color:#666;position:relative;padding-left:8px}.interview-summary-block li:before{content:"•";position:absolute;left:-12px;color:#333;font-weight:400}.interview-done-btn{width:100%;padding:10px;margin-top:16px;background:#333;color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:500;cursor:pointer;transition:background .2s}.interview-done-btn:hover{background:#000}.interview-error{align-items:center;justify-content:center;text-align:center;gap:16px}.interview-error-icon{font-size:48px}.interview-error-message{color:#ef4444;font-size:16px;margin:0}.interview-retry-btn{padding:10px 24px;background:#ef4444;color:#fff;border:none;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s}.interview-retry-btn:hover{background:#dc2626;transform:translateY(-2px)}.interview-evaluating-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:300px;text-align:center}.interview-evaluating-text{font-size:18px;font-weight:600;color:#374151;margin:16px 0 8px}.interview-resume-notice{background:#f5f5f5;border:1px solid #d0d0d0;border-radius:4px;padding:10px 14px;margin-bottom:16px;display:flex;align-items:center;gap:8px;animation:interview-fade-in .5s ease}.resume-icon{font-size:16px}.resume-text{font-size:13px;color:#666;font-weight:500}@keyframes interview-fade-in{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.interview-previous-qa-toggle{margin-bottom:16px}.interview-previous-qa-btn{padding:8px 14px;background:#fafafa;border:1px solid #d0d0d0;border-radius:4px;color:#666;font-size:12px;font-weight:500;cursor:pointer;transition:all .15s;display:inline-flex;align-items:center;gap:6px}.interview-previous-qa-btn:hover{background:#f0f0f0;color:#333;border-color:#999}.interview-previous-qa-content{overflow:hidden;margin-bottom:20px}.interview-previous-qa-card{background:#fafafa;border:1px solid #e0e0e0;border-radius:6px;padding:14px;margin-bottom:10px}.interview-previous-qa-card:last-child{margin-bottom:0}.interview-previous-qa-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;padding-bottom:8px;border-bottom:1px solid #e0e0e0}.interview-previous-qa-header h4{margin:0;font-size:13px;font-weight:600;color:#333}.interview-previous-qa-score{font-size:14px;font-weight:600;color:#333}.interview-previous-qa-question,.interview-previous-qa-answer,.interview-previous-qa-evaluation{margin-bottom:10px}.interview-previous-qa-question:last-child,.interview-previous-qa-answer:last-child,.interview-previous-qa-evaluation:last-child{margin-bottom:0}.interview-previous-qa-question strong,.interview-previous-qa-answer strong{display:block;font-size:11px;font-weight:600;color:#999;margin-bottom:4px}.interview-previous-qa-question p,.interview-previous-qa-answer p{margin:0;font-size:13px;line-height:1.6;color:#333}.interview-previous-qa-feedback,.interview-previous-qa-suggestions{margin-bottom:8px}.interview-previous-qa-feedback:last-child,.interview-previous-qa-suggestions:last-child{margin-bottom:0}.interview-previous-qa-feedback strong,.interview-previous-qa-suggestions strong{display:block;font-size:11px;font-weight:600;color:#999;margin-bottom:4px}.interview-previous-qa-feedback p,.interview-previous-qa-suggestions p{margin:0;font-size:12px;line-height:1.6;color:#666}@media (max-width: 768px){.interview-dialog{max-width:100%;max-height:100vh;border-radius:0}.interview-dialog-overlay{padding:0}.interview-summary-stats{grid-template-columns:1fr}}.right-panel-container{width:100%;height:100%;background:#fff;display:flex;flex-direction:column;overflow:hidden;box-sizing:border-box}.studio-view{width:100%;height:100%;display:flex;flex-direction:column;overflow-y:auto;overflow-x:hidden;padding-top:48px;box-sizing:border-box;position:relative}.shared-notes-section{padding:12px 0 16px;margin-bottom:16px;border-top:1px solid #f0f0f0;flex-shrink:0;background:transparent}.shared-notes-header{display:flex;align-items:center;justify-content:space-between;margin:0 0 12px;padding:0}.shared-notes-title-row{display:flex;align-items:center;gap:8px}.shared-notes-header h4{font-size:12px;font-weight:500;color:#666;margin:0}.shared-notes-title-text{font-size:12px;font-weight:500;color:#666!important;margin:0}.shared-notes-count{font-size:11px;color:#999;background:transparent;padding:0;border-radius:0;font-weight:400}.shared-note-card{padding:6px 8px;background:transparent;border:none;border-bottom:1px solid #f5f5f5;border-radius:0;transition:all .15s ease;cursor:pointer}.shared-note-card:last-child{border-bottom:none}.shared-note-card:hover{background:#fafafa;transform:translate(2px)}.shared-note-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:3px;gap:4px}.shared-note-info{display:flex;align-items:center;gap:6px;flex:1;min-width:0}.shared-note-author{font-size:10px;color:#999;font-weight:400}.own-doc-badge{font-size:9px;color:#2196f3;background:transparent;padding:0;border-radius:0;border:none;font-weight:500}.copy-note-btn{font-size:13px;background:none;border:none;cursor:pointer;padding:2px;border-radius:3px;transition:all .15s ease;flex-shrink:0;opacity:.5}.copy-note-btn:hover:not(:disabled){background:#f0f0f0;opacity:1}.copy-note-btn:disabled{opacity:.5;cursor:not-allowed}.copy-note-btn.copied{color:#4caf50;font-size:13px;opacity:1}.shared-note-title-row{display:flex;justify-content:space-between;align-items:baseline;gap:6px;margin-bottom:2px}.shared-note-title{font-size:12px;font-weight:500;color:#1a1a1a;margin:0;flex:1;line-height:1.3;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.shared-note-date{font-size:9px;color:#ccc;flex-shrink:0}.shared-note-content{font-size:11px;line-height:1.4;color:#888;margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.shared-notes-load-more{padding:12px 0 8px;display:flex;justify-content:center}.load-more-btn{padding:6px 16px;font-size:12px;font-weight:500;color:#2196f3;background:transparent;border:1px solid #e0e0e0;border-radius:16px;cursor:pointer;transition:all .2s ease}.load-more-btn:hover{background:#f5f5f5;border-color:#2196f3}.note-preview-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#12241e2e;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;z-index:9999999!important;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.note-preview-modal{width:92%;max-width:760px;max-height:82vh;background:linear-gradient(160deg,#fffffff5,#f2faf6f5);border:1px solid rgba(102,185,156,.18);border-radius:26px;box-shadow:0 28px 60px #122a212e;display:flex;flex-direction:column;overflow:hidden;animation:slideUp .3s ease}@keyframes slideUp{0%{transform:translateY(30px);opacity:0}to{transform:translateY(0);opacity:1}}.note-preview-header{padding:26px 32px 20px;border-bottom:1px solid rgba(102,185,156,.15);display:flex;justify-content:space-between;align-items:flex-start;gap:16px;background:transparent}.note-preview-title-section{flex:1;min-width:0}.note-preview-header h3{font-size:24px;font-weight:700;color:#0f2a22;margin:0 0 12px;line-height:1.4}.note-preview-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.preview-author{font-size:13px;color:#666;font-weight:500}.preview-date{font-size:12px;color:#999}.preview-own-badge{font-size:11px;color:#2196f3;background:#e3f2fd;padding:2px 8px;border-radius:10px;border:1px solid #90caf9}.note-preview-close{width:36px;height:36px;border-radius:12px;border:none;background:#63ba9a1f;color:#1b362d99;font-size:18px;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center;flex-shrink:0}.note-preview-close:hover{background:#63ba9a33;color:#1b362dd9}.note-preview-content{flex:1;overflow-y:auto;padding:26px 32px}.note-dialog-title{font-size:18px;font-weight:700;color:#0f2a22;margin:0}.note-preview-text{font-size:14px;line-height:1.8;color:#333;white-space:pre-wrap;word-wrap:break-word}.note-preview-footer{padding:16px 24px;display:flex;justify-content:flex-end;gap:12px}.note-dialog-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid rgba(102,185,156,.15)}.note-dialog-actions{display:inline-flex;align-items:center;gap:10px}.preview-save-btn.slim{padding:8px 22px;font-size:14px;font-weight:600;box-shadow:0 10px 22px #50a88638}.preview-cancel-btn.slim{padding:8px 20px;font-size:14px;font-weight:600}.preview-save-btn{padding:12px 32px;font-size:15px;font-weight:600;color:#fff;background:linear-gradient(135deg,#60b494,#4aa381);border:none;border-radius:999px;cursor:pointer;transition:background .2s ease,box-shadow .2s ease,transform .2s ease;box-shadow:0 16px 30px #50a88642}.preview-save-btn:hover:not(:disabled){background:linear-gradient(135deg,#69c09f,#55b08c);box-shadow:0 16px 30px #50a88642}.preview-save-btn:disabled{background:linear-gradient(135deg,#7fc7a9,#6abf9d);color:#ffffffb3;cursor:not-allowed;box-shadow:none}.preview-copy-btn{padding:10px 28px;font-size:14px;font-weight:600;color:#fff;background:#111;border:none;border-radius:999px;cursor:pointer;transition:background .2s ease,box-shadow .2s ease;display:flex;align-items:center;gap:6px;box-shadow:0 10px 20px #11111129}.preview-copy-btn:hover:not(:disabled){background:#050505;box-shadow:0 12px 24px #11111138}.preview-copy-btn:disabled{background:#d7d8dc;color:#888a90;cursor:not-allowed;box-shadow:none}.preview-copy-btn.copied{background:#111}.preview-copy-btn.copied:hover{background:#050505}.preview-cancel-btn{padding:11px 26px;font-size:14px;font-weight:600;color:#2a5f4b;background:#eef9f4cc;border:1px solid rgba(99,186,154,.24);border-radius:999px;cursor:pointer;transition:background .2s ease,border-color .2s ease,color .2s ease}.preview-cancel-btn:hover:not(:disabled){background:#e0f5ecf2;border-color:#63ba9a52;color:#1f4d3d}.preview-cancel-btn:disabled{opacity:.5;cursor:not-allowed}.note-form-group{margin-bottom:20px}.note-form-label{display:block;font-size:13px;font-weight:600;color:#1c3f34b3;margin-bottom:10px;letter-spacing:.06em;text-transform:uppercase}.note-form-input{width:100%;padding:14px 16px;font-size:14px;color:#15362d;background:#e4f4ec99;border:1px solid rgba(102,185,156,.28);border-radius:16px;outline:none;transition:all .25s ease;box-sizing:border-box;box-shadow:inset 0 0 #66b99c2e}.note-form-input:focus{border-color:#63ba9a;background:#eef9f4f2;box-shadow:0 0 0 4px #63ba9a33,inset 0 1px #fff6}.note-form-input::placeholder{color:#1b362d5c}.note-form-textarea{width:100%;padding:14px 16px;font-size:14px;line-height:1.6;color:#15362d;background:#e4f4ec99;border:1px solid rgba(102,185,156,.28);border-radius:16px;outline:none;resize:vertical;min-height:200px;font-family:inherit;transition:all .25s ease;box-sizing:border-box;box-shadow:inset 0 0 #66b99c2e}.note-form-textarea:focus{border-color:#63ba9a;background:#eef9f4f2;box-shadow:0 0 0 4px #63ba9a33,inset 0 1px #fff6}.note-form-textarea::placeholder{color:#1b362d5c}.studio-history{padding:0 16px 16px;flex-shrink:0;overflow-y:visible;overflow-x:hidden;box-sizing:border-box;max-width:100%}.studio-history-header{margin:24px 0 16px;padding:0;display:flex;align-items:center;justify-content:space-between;gap:12px}.studio-history-header h4{font-size:18px;font-weight:600;color:#1a1a1a;margin:0;letter-spacing:-.5px;flex:1}.create-note-btn{padding:4px 10px;font-size:12px;font-weight:500;color:#2e7d32;background:#e8f5e9;border:1px solid #c8e6c9;border-radius:12px;cursor:pointer;transition:all .2s ease;white-space:nowrap;flex-shrink:0}.create-note-btn:hover{background:#c8e6c9;border-color:#81c784;color:#1b5e20}.shared-notes-toggle-btn{padding:4px 12px;font-size:12px;font-weight:600;color:#2f8e6f;background:#e0f5ecd1;border:1px solid rgba(99,186,154,.28);border-radius:14px;cursor:pointer;transition:all .2s ease;white-space:nowrap;flex-shrink:0}.shared-notes-toggle-btn:hover:not(:disabled){background:#d2f0e4f2;border-color:#63ba9a6b;color:#1f4d3d}.shared-notes-toggle-btn:disabled{opacity:.5;cursor:not-allowed}.shared-notes-toggle-btn.active{background:linear-gradient(135deg,#60b494,#4aa381);color:#fff;border-color:#4c9a81e6;box-shadow:0 12px 24px #50a88638}.studio-empty-state{padding:40px 20px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:16px}.studio-empty-state p{font-size:13px;color:#999;margin:0;line-height:1.5}.studio-loading-spinner{width:36px;height:36px;border:3px solid #f0f0f0;border-top-color:#1a1a1a;border-radius:50%;animation:spin 1s linear infinite}.studio-loading-text{color:#666;font-size:13px;font-weight:400}.studio-history-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;width:100%;max-width:100%;overflow:hidden;box-sizing:border-box;min-width:0}.studio-history-item{display:flex;flex-direction:row;align-items:center;justify-content:flex-start;gap:8px;padding:6px 12px;background:#fff;border:1px solid #f0f0f0;border-radius:4px;cursor:pointer;transition:all .2s ease-out;min-height:auto;text-align:left;position:relative;width:100%;max-width:100%;min-width:0;overflow:hidden;box-sizing:border-box;max-height:120px;opacity:1;transform:translateY(0) scale(1);margin-bottom:2px;box-shadow:0 1px 2px #00000008}.studio-history-item.deleting{opacity:0;transform:translateY(-2px) scale(.99);max-height:0;margin-bottom:0;padding:0 12px;border:none;box-shadow:none;overflow:hidden}.studio-history-item:hover{background:#f0faf6;border-color:#63ba9a;box-shadow:0 6px 18px #63ba9a2e}.studio-history-item:active{transform:scale(.98)}.studio-history-item.shared-note{background:#e8f5e9!important;border-color:#81c784!important}.studio-history-item.shared-note:hover{background:#c8e6c9!important;border-color:#66bb6a!important}.history-item-icon{font-size:22px;flex-shrink:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:#f5f5f5;border-radius:6px}.history-item-content{flex:1;display:flex;flex-direction:column;align-items:flex-start;gap:4px;min-width:0;cursor:pointer}.history-item-title-row{display:flex;flex-direction:row;align-items:center;gap:4px;width:100%;min-width:0;overflow:hidden}.history-item-title{font-size:13px;font-weight:600;color:#1a1a1a;line-height:1.3;word-break:break-word;flex:1;min-width:0}.current-badge-small{display:inline-block;padding:2px 8px;font-size:11px;font-weight:500;border-radius:4px;background:#e3f2fd;color:#1976d2;margin-left:6px;flex-shrink:0}.current-badge-small.completed{background:#e8f5e9;color:#2e7d32}.history-item-meta-row{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:11px;color:#999;width:100%;min-width:0;overflow:hidden}.history-item-meta-row.single-meta{justify-content:flex-end}.history-item-subtitle{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;font-size:10px}.history-item-time{flex-shrink:0;color:#6b8580}.history-item-menu-container{position:relative;flex-shrink:0;margin-left:4px;margin-right:0;z-index:100}.history-item-menu-btn{width:24px;height:24px;border:none;background:transparent;color:#666;font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;border-radius:4px;transition:all .2s ease}.history-item-menu-btn:hover{background:#f0f0f0;color:#1a1a1a}.history-menu-dropdown{position:fixed;background:#fff;border:1px solid #e0e0e0;border-radius:8px;box-shadow:0 8px 24px #0003;min-width:120px;z-index:99999;overflow:hidden;pointer-events:auto}.menu-item{width:100%;padding:10px 16px;border:none;background:#fff;text-align:left;cursor:pointer;display:flex;align-items:center;gap:8px;font-size:13px;color:#333;transition:background .2s ease}.menu-item:hover{background:#f5f5f5}.menu-item.delete{color:#f44336}.menu-item.delete:hover{background:#ffebee}.rename-input{width:100%;padding:0;border:none;border-radius:0;font-size:13px;font-weight:600;line-height:1.3;color:#1a1a1a;outline:none;background:transparent;box-sizing:border-box;flex:1;min-width:0}.rename-input:focus{border:none}.view-header{position:absolute;top:8px;left:20px;right:50px;display:flex;align-items:center;justify-content:flex-start;gap:12px;padding:0;border-bottom:none;flex-shrink:0;z-index:10}.view-header h3{font-size:18px;font-weight:600;color:#1a1a1a;margin:0;letter-spacing:-.5px}.back-btn{padding:4px;background:transparent;border:none;color:#666;font-size:20px;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center;flex-shrink:0}.back-btn:hover{color:#1a1a1a;background:#f5f5f5;border-radius:6px}.history-toggle-btn,.history-panel{display:none!important}.view-content{flex:1;overflow-y:auto;padding:20px}.flowchart-view{width:100%;height:100%;display:flex;flex-direction:column;overflow:hidden;box-sizing:border-box;position:relative}.flowchart-view .view-header{flex-shrink:0}.flowchart-view .view-content{flex:1;padding:48px 20px 20px;overflow-y:auto;overflow-x:hidden}.text-flowchart{width:100%}.flowchart-header{margin-bottom:20px;padding-bottom:16px;border-bottom:2px solid #e0e0e0}.flowchart-header h2{font-size:18px;font-weight:700;color:#1a1a1a;margin:0 0 12px;line-height:1.4}.flowchart-overview{font-size:13px;line-height:1.6;color:#666;margin:0}.flowchart-nodes{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.text-node{background:#fff;border:1px solid #e0e0e0;border-radius:10px;padding:12px;transition:all .2s ease;display:flex;flex-direction:column;min-height:140px;cursor:pointer}.text-node:hover{border-color:#1a1a1a;box-shadow:0 2px 8px #00000014}.text-node:active{transform:scale(.98)}.text-node-header{display:flex;align-items:center;gap:8px;margin-bottom:6px}.text-node-number{width:24px;height:24px;background:#1a1a1a;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;flex-shrink:0}.text-node-title{font-size:14px;font-weight:600;color:#1a1a1a;margin:0;line-height:1.3;flex:1}.text-node-title:after{content:"▼";font-size:10px;color:#999;margin-left:6px;transition:transform .2s ease;display:inline-block}.text-node.expanded .text-node-title:after{transform:rotate(180deg)}.path-node-explain-btn{font-size:11px;font-weight:600;flex-shrink:0;white-space:nowrap;color:#4a4a4a;background:#e8e8e8;padding:3px 10px;border-radius:10px;border:1px solid #d0d0d0;cursor:pointer;transition:all .2s;margin-left:auto}.path-node-explain-btn:hover{background:#d8d8d8;border-color:silver}.path-node-explain-btn:active{background:#d0d0d0}.text-node-description{font-size:12px;line-height:1.5;color:#555;margin:0;flex:1;display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden;text-overflow:ellipsis}.text-node.expanded .text-node-description{display:block;-webkit-line-clamp:unset;overflow:visible}.text-node-header-content{flex:1;display:flex;flex-direction:column;gap:6px;align-items:flex-start}.text-node-header-content .path-node-explain-btn{margin-left:0}.text-node.expanded{min-height:auto}.text-node-prerequisites{margin-top:8px;display:flex;flex-wrap:wrap;align-items:center;gap:4px}.prerequisites-label{font-size:10px;color:#999;font-weight:500}.prerequisite-tag{font-size:10px;padding:2px 6px;background:#e3f2fd;color:#1976d2;border-radius:10px;font-weight:500}.flashcards-view{width:100%;height:100%;display:flex;flex-direction:column;overflow:hidden;box-sizing:border-box;position:relative}.flashcards-view .view-header{flex-shrink:0}.flashcards-view .view-content{flex:1;padding-top:0;overflow-y:auto;overflow-x:hidden;display:flex;flex-direction:column}.flashcards-content-panel{flex:1;display:flex;flex-direction:column;padding:60px 24px 32px;gap:24px;overflow-y:auto;justify-content:center}.card-navigation{display:flex;align-items:center;justify-content:center;gap:20px}.nav-btn-small{width:40px;height:40px;border:2px solid #1a1a1a;background:#fff;color:#1a1a1a;font-size:18px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease}.nav-btn-small:hover:not(:disabled){background:#1a1a1a;color:#fff}.nav-btn-small:disabled{opacity:.2;cursor:not-allowed}.card-counter{font-size:14px;color:#666;font-weight:500;min-width:80px;text-align:center}.flashcard-small{width:100%;height:400px;perspective:1000px;cursor:pointer;margin:0}.card-inner-small{position:relative;width:100%;height:100%;transition:transform .6s;transform-style:preserve-3d}.flashcard-small.flipped .card-inner-small{transform:rotateY(180deg)}.card-face-small{position:absolute;width:100%;height:100%;backface-visibility:hidden;border-radius:16px;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px;box-shadow:0 4px 12px #0000001a}.card-front-small{background:linear-gradient(135deg,#2c2c2c,#1a1a1a);color:#fff}.card-back-small{background:linear-gradient(135deg,#f5f5f5,#e8e8e8);color:#1a1a1a;transform:rotateY(180deg)}.card-text-small{font-size:20px;font-weight:600;line-height:1.5;text-align:center;word-wrap:break-word;max-width:100%}.card-front-small .card-text-small{margin-bottom:24px}.card-hint-small{position:absolute;bottom:24px;font-size:12px;color:#fff9;padding:6px 12px;background:#ffffff1a;border-radius:16px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.flashcards-controls{display:flex;align-items:center;gap:12px}.control-btn-small{width:36px;height:36px;border:1px solid #e0e0e0;background:#fff;color:#1a1a1a;font-size:18px;border-radius:6px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease;flex-shrink:0}.control-btn-small:hover{background:#f0f0f0;border-color:#ccc}.progress-bar-small{flex:1;height:6px;background:#e0e0e0;border-radius:3px;overflow:hidden}.progress-fill-small{height:100%;background:#1a1a1a;border-radius:3px;transition:width .3s ease}.history-panel{background:#f9f9f9;border-bottom:1px solid #e0e0e0;padding:16px;max-height:300px;overflow-y:auto}.history-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.history-header h4{font-size:14px;font-weight:600;color:#1a1a1a;margin:0}.history-close-btn{width:24px;height:24px;padding:0;background:transparent;border:none;color:#666;font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;border-radius:4px;transition:all .2s ease}.history-close-btn:hover{background:#e0e0e0;color:#1a1a1a}.history-list{display:flex;flex-direction:column;gap:8px}.history-item{padding:12px;background:#fff;border:1px solid #e0e0e0;border-radius:8px;cursor:pointer;transition:all .2s ease}.history-item:hover{border-color:#1a1a1a;box-shadow:0 2px 4px #0000001a}.history-item.active{background:#1a1a1a;border-color:#1a1a1a;color:#fff}.history-item.current:not(.active){border-color:#4caf50;background:#f0f9f0}.current-badge{display:none}.history-item-meta{display:flex;justify-content:space-between;font-size:12px;color:#666}.history-item.active .history-item-meta{color:#fffc}.history-loading{text-align:center;padding:30px 20px;display:flex;flex-direction:column;align-items:center;gap:12px}.history-loading:before{content:"";width:32px;height:32px;border:3px solid #f0f0f0;border-top-color:#1a1a1a;border-radius:50%;animation:spin 1s linear infinite}.history-empty{text-align:center;padding:20px;color:#999;font-size:13px}.view-empty{display:flex;align-items:center;justify-content:center;height:100%;color:#999;font-size:14px}@media (max-width: 768px){.flashcard-small{height:300px}.card-text-small{font-size:18px}.card-face-small{padding:24px}.history-panel{max-height:200px}}.quiz-view{width:100%;height:100%;display:flex;flex-direction:column;overflow:hidden;box-sizing:border-box;position:relative}.quiz-view .view-header{flex-shrink:0}.quiz-view .view-content{flex:1;padding-top:0;overflow-y:auto;overflow-x:hidden}.quiz-container{padding:0 20px 20px;display:flex;flex-direction:column;gap:0}.quiz-question-card{background:transparent;border:none;border-radius:0;padding:24px 0;transition:all .2s ease;border-bottom:1px solid #e8e8e8}.quiz-question-card:hover{box-shadow:none}.quiz-question-card:last-child{border-bottom:none}.quiz-question-card:first-child{padding-top:12px}.quiz-question-header{display:flex;align-items:flex-start;gap:12px;margin-bottom:16px;padding-bottom:12px}.quiz-question-number{min-width:24px;background:transparent;color:#999;border-radius:0;display:flex;align-items:center;justify-content:flex-start;font-size:14px;font-weight:400;flex-shrink:0}.quiz-question-text{flex:1;font-size:15px;font-weight:600;color:#1a1a1a;margin:0;line-height:1.5}.quiz-options{display:flex;flex-direction:column;gap:12px;margin-bottom:16px}.quiz-option{display:flex;align-items:center;gap:12px;padding:12px 16px;background:#fafafa;border:1px solid #e0e0e0;border-radius:8px;transition:background-color .15s ease,border-color .15s ease,box-shadow .15s ease,transform .15s ease;box-shadow:0 1px 2px #0000000a;transform:translateZ(0);will-change:background-color,border-color,box-shadow}.quiz-option.correct{background:#f1f8f4;border:2px solid #4caf50;box-shadow:0 2px 6px #4caf5026}.option-label{font-size:14px;font-weight:600;color:#666;min-width:24px;transition:color .15s ease}.quiz-option.correct .option-label{color:#4caf50;font-weight:600}.option-text{flex:1;font-size:14px;color:#333;line-height:1.5;transition:color .15s ease}.correct-indicator{color:#4caf50;font-size:16px;font-weight:600}.quiz-explanation{padding:12px 0;background:transparent;border-left:none;border-radius:0;font-size:13px;line-height:1.6;color:#1a1a1a;margin-top:8px}.quiz-explanation strong{color:#1a1a1a;font-weight:500}.quiz-controls{display:flex;align-items:center;justify-content:center;padding:16px 20px;background:#f9f9f9;border-bottom:1px solid #e0e0e0;flex-shrink:0}.quiz-answer-controls{display:flex;align-items:center;justify-content:center;padding:64px 20px 20px;background:transparent;border-bottom:none;flex-shrink:0;gap:16px;margin-bottom:0;min-height:120px}.quiz-control-btn{padding:0;border:none;border-radius:0;font-size:15px;font-weight:400;cursor:pointer;transition:opacity .2s ease;background:transparent;color:#666;text-decoration:none;position:relative}.quiz-control-btn:hover{color:#1a1a1a;opacity:.7}.quiz-control-btn.primary,.quiz-control-btn.secondary{background:transparent;color:#666}.quiz-control-btn.primary:hover,.quiz-control-btn.secondary:hover{background:transparent;color:#1a1a1a;opacity:.7}.quiz-score{display:flex;align-items:center;gap:8px;padding:0;background:transparent;border:none;border-radius:0;font-size:13px;font-weight:400;color:#999}.quiz-option:not(.correct):not(.incorrect):hover{background-color:#f0f0f0;border-color:silver;cursor:pointer;box-shadow:0 2px 4px #00000014}.quiz-option.selected:not(.correct):not(.incorrect){background-color:#fff;border:2px solid #1a1a1a;box-shadow:0 2px 6px #0000001a}.quiz-option.selected:not(.correct):not(.incorrect) .option-label{color:#1a1a1a;font-weight:700}.quiz-option.selected:not(.correct):not(.incorrect) .option-text{color:#1a1a1a;font-weight:500}.quiz-option.incorrect{background:#fef5f5;border:2px solid #f44336;box-shadow:0 2px 6px #f4433626}.quiz-option.incorrect .option-label{color:#f44336;font-weight:700}.answer-badge{padding:0;border-radius:0;font-size:12px;font-weight:400;white-space:nowrap;background:transparent}.answer-badge.correct-badge{background:transparent;color:#4caf50}.answer-badge.incorrect-badge{background:transparent;color:#f44336}.note-expanded-content{margin-top:12px;padding:12px;background:#f8f9fa;border-radius:8px;border:1px solid #e9ecef}.note-content-text{font-size:14px;line-height:1.6;color:#495057;white-space:pre-wrap;word-break:break-word}.expand-icon{font-size:12px;color:#6c757d;margin-left:8px;transition:transform .2s ease}.history-item-title-row{display:flex;align-items:center;justify-content:space-between;width:100%}.menu-backdrop{position:fixed;top:0;left:0;right:0;bottom:0;z-index:99998;background:#0000;cursor:default;pointer-events:auto}.note-dialog-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#12241e2e;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;z-index:999999}.note-dialog{background:linear-gradient(160deg,#fffffff5,#f2faf6f5);border:1px solid rgba(102,185,156,.18);border-radius:26px;box-shadow:0 28px 60px #122a212e;width:90%;max-width:600px;max-height:80vh;display:flex;flex-direction:column}.note-dialog-header{display:flex;align-items:center;justify-content:space-between;padding:24px 32px 20px;border-bottom:1px solid rgba(102,185,156,.15)}.note-dialog-header h3{font-size:24px;font-weight:700;letter-spacing:-.02em;color:#0f2a22;margin:0}.note-dialog-close{background:none;border:none;font-size:20px;color:#1b362d66;cursor:pointer;padding:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:6px;transition:all .2s}.note-dialog-close:hover{background:#63ba9a1f;color:#1b362dcc}.note-dialog-body{flex:1;overflow-y:auto;padding:24px 32px 28px}.note-form-group{margin-bottom:22px}.note-form-group label{display:block;font-size:13px;font-weight:600;color:#1c3f34b3;margin-bottom:10px;letter-spacing:.06em;text-transform:uppercase}.note-input{width:100%;padding:14px 16px;border:1px solid rgba(102,185,156,.28);border-radius:16px;font-size:16px;transition:all .25s ease;box-sizing:border-box;background:#e4f4ec99;color:#15362d;box-shadow:inset 0 0 #66b99c2e}.note-input::placeholder{color:#1b362d5c;font-weight:400}.note-input:focus{outline:none;border-color:#63ba9a;background:#eef9f4f2;box-shadow:0 0 0 4px #63ba9a33,inset 0 1px #fff6}.note-textarea{width:100%;padding:14px 16px;border:1px solid rgba(102,185,156,.28);border-radius:16px;font-size:16px;font-family:inherit;resize:vertical;transition:all .25s ease;box-sizing:border-box;min-height:220px;background:#e4f4ec99;color:#15362d;box-shadow:inset 0 0 #66b99c2e}.note-textarea::placeholder{color:#1b362d5c}.note-textarea:focus{outline:none;border-color:#63ba9a;background:#eef9f4f2;box-shadow:0 0 0 4px #63ba9a33,inset 0 1px #fff6}.note-dialog-footer{display:flex;align-items:center;justify-content:flex-end;gap:12px;padding:22px 32px;border-top:1px solid rgba(102,185,156,.15)}.note-btn{padding:12px 28px;border-radius:999px;font-size:15px;font-weight:600;cursor:pointer;transition:all .2s;border:none}.note-btn:disabled{opacity:.6;cursor:not-allowed}.note-btn-cancel{background:#eef9f4cc;color:#2a5f4b}.note-btn-cancel:hover:not(:disabled){background:#e0f5ecf2}.note-btn-save{background:linear-gradient(135deg,#60b494,#4aa381);color:#fff;box-shadow:0 16px 30px #50a88642}.note-btn-save:hover:not(:disabled){background:linear-gradient(135deg,#69c09f,#55b08c);transform:translateY(-1px);box-shadow:0 20px 34px #4faa8a4d}.note-btn-save:disabled{background:linear-gradient(135deg,#7fc7a9,#6abf9d);color:#ffffffb3;cursor:not-allowed;box-shadow:none}.note-view{width:100%;height:100%;display:flex;flex-direction:column;overflow:hidden}.note-view .view-header{flex-shrink:0}.edit-note-btn{padding:4px 10px;font-size:12px;font-weight:500;color:#fff;background:#2c2c2c;border:1px solid #2c2c2c;border-radius:12px;cursor:pointer;transition:all .2s ease;margin-left:auto;white-space:nowrap;flex-shrink:0}.edit-note-btn:hover{background:#1a1a1a;border-color:#1a1a1a;color:#fff}.note-content{flex:1;overflow-y:auto;padding:48px 20px 20px}.note-text{font-size:14px;line-height:1.6;color:#333;font-weight:300;font-family:inherit;word-break:break-word}.note-text.markdown-content h1,.note-text.markdown-content h2,.note-text.markdown-content h3,.note-text.markdown-content p,.note-text.markdown-content ul,.note-text.markdown-content ol,.note-text.markdown-content li,.note-text.markdown-content code,.note-text.markdown-content pre,.note-text.markdown-content blockquote,.note-text.markdown-content table,.note-text.markdown-content th,.note-text.markdown-content td{font-family:inherit;font-weight:inherit}.note-text.markdown-content h1,.note-text.markdown-content h2,.note-text.markdown-content h3{margin-top:24px;margin-bottom:16px;font-weight:600;line-height:1.3}.note-text.markdown-content h1{font-size:28px;border-bottom:2px solid #e9ecef;padding-bottom:8px}.note-text.markdown-content h2{font-size:24px}.note-text.markdown-content h3{font-size:20px}.note-text.markdown-content p{margin-bottom:16px;font-size:14px}.note-text.markdown-content ul,.note-text.markdown-content ol{margin:4px 0 6px 28px!important;padding:0!important;line-height:1.6!important}.note-text.markdown-content li{margin:0!important;padding:0 0 0 8px!important;line-height:1.6!important;display:list-item!important}.note-text.markdown-content li>*{display:inline!important;margin:0!important}.note-text.markdown-content li>*:first-child{display:inline!important}.note-text.markdown-content ul>li{list-style-type:disc!important;list-style-position:outside!important}.note-text.markdown-content ol>li{list-style-type:decimal!important;list-style-position:outside!important}.note-text.markdown-content ul ul,.note-text.markdown-content ol ul,.note-text.markdown-content ul ol,.note-text.markdown-content ol ol{margin:2px 0 2px 20px!important}.note-text.markdown-content code{background:#f6f8fa;padding:2px 6px;border-radius:3px;font-family:Courier New,Courier,monospace;font-size:14px}.note-text.markdown-content pre{background:#f6f8fa;padding:16px;border-radius:6px;overflow-x:auto;margin-bottom:16px}.note-text.markdown-content pre code{background:none;padding:0}.note-text.markdown-content blockquote{border-left:4px solid #dfe2e5;padding-left:16px;margin:16px 0;color:#6a737d}.note-text.markdown-content a{color:#0366d6;text-decoration:none}.note-text.markdown-content a:hover{text-decoration:underline}.note-text.markdown-content table{border-collapse:collapse;width:100%;margin-bottom:16px}.note-text.markdown-content th,.note-text.markdown-content td{border:1px solid #dfe2e5;padding:8px 12px}.note-text.markdown-content th{background:#f6f8fa;font-weight:600}.note-text.markdown-content img{max-width:100%;height:auto}.mindmap-view{width:100%;height:100%;display:flex;flex-direction:column;overflow:hidden;box-sizing:border-box;position:relative}.mindmap-view .view-header{flex-shrink:0}.mindmap-view .view-content{flex:1;padding:56px 16px 16px;overflow:hidden;display:flex;flex-direction:column}.mindmap-view .view-content>*{flex:1;min-height:0}.mindmap-action{position:relative;overflow:hidden}.mindmap-action:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,#667eea,#764ba2);opacity:0;transition:opacity .3s ease;z-index:1}.mindmap-action:hover:before{opacity:.08}.mindmap-action.generated:before{opacity:.12}.highlights-view{width:100%;height:100%;display:flex;flex-direction:column;overflow:hidden;box-sizing:border-box;position:relative}.highlights-view .view-header{flex-shrink:0}.highlights-view .view-content{flex:1;padding:56px 24px 24px;overflow-y:auto;overflow-x:hidden}.highlights-summary{padding:16px 20px;margin-bottom:28px;background:#fafafa;border:1px solid #e0e0e0;border-radius:8px;box-shadow:0 1px 3px #0000000d}.highlights-summary h4{font-size:13px;font-weight:700;color:#1a1a1a;margin:0 0 12px;letter-spacing:.3px}.highlights-summary p{font-size:14px;line-height:1.8;color:#4a4a4a;margin:0}.highlights-points{display:flex;flex-direction:column;gap:0}.points-category{padding:0;margin-bottom:36px}.category-title{font-size:14px;font-weight:700;color:#1a1a1a;margin:0 0 20px;display:flex;align-items:center;gap:8px;padding-bottom:10px;border-bottom:2px solid #e0e0e0;letter-spacing:.3px}.category-icon{font-size:14px;color:#333;font-weight:700}.category-count{font-size:12px;font-weight:500;color:#666;margin-left:4px;background:#f0f0f0;padding:2px 8px;border-radius:10px}.points-list{display:flex;flex-direction:column;gap:12px}.highlight-point{padding:16px 18px;margin-bottom:0;background:#fafafa;border:1px solid #e0e0e0;border-radius:8px;box-shadow:0 1px 2px #0000000a;transition:all .2s ease}.highlight-point:hover{border-color:silver;box-shadow:0 2px 4px #00000014}.point-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:10px;gap:12px}.point-header-right{display:flex;align-items:center;gap:12px;flex-shrink:0}.point-title{font-size:14px;font-weight:600;color:#1a1a1a;margin:0;line-height:1.5;flex:1}.point-importance{font-size:11px;font-weight:600;flex-shrink:0;white-space:nowrap;color:#666}.point-content{font-size:13px;line-height:1.7;color:#4a4a4a;margin:0 0 8px}.point-explain-btn{font-size:11px;font-weight:600;flex-shrink:0;white-space:nowrap;color:#4a4a4a;background:#e8e8e8;padding:3px 10px;border-radius:10px;border:1px solid #d0d0d0;cursor:pointer;transition:all .2s}.point-explain-btn:hover{background:#d8d8d8;border-color:silver}.point-explain-btn:active{background:#d0d0d0}.highlights-action{position:relative;overflow:hidden}.highlights-action:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:#333;opacity:0;transition:opacity .3s ease}.highlights-action:hover:before{opacity:.05}.highlights-action.generated:before{opacity:.08}.interview-action{position:relative;overflow:hidden}.interview-action .action-icon{font-size:32px}.interview-action .action-text h4{color:#333!important;font-weight:700!important}.interview-action .action-text p{color:#666!important;font-weight:400!important}.shared-notes-toggle-action{position:relative;overflow:hidden;border:2px solid transparent}.shared-notes-toggle-action:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:#2196f3;opacity:0;transition:opacity .3s ease}.shared-notes-toggle-action:hover:not(.disabled):before{opacity:.05}.shared-notes-toggle-action.active{border-color:#2196f3;background:#2196f30d}.shared-notes-toggle-action.active:before{opacity:.08}.shared-notes-toggle-action.disabled{opacity:.5;cursor:not-allowed}.shared-notes-toggle-action.disabled:hover{transform:none}.note-actions{padding:16px 0;border-bottom:1px solid #e0e0e0;margin-bottom:20px}.share-button{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;font-size:14px;font-weight:500;border:1px solid #e0e0e0;border-radius:6px;background:#fff;color:#333;cursor:pointer;transition:all .2s ease;position:relative}.share-button:hover:not(:disabled){border-color:#1a1a1a;background:#fafafa}.share-button:disabled{opacity:.5;cursor:not-allowed}.share-button.shared{border-color:#4a90e2;color:#4a90e2}.share-button.shared:hover:not(:disabled){background:#f0f7ff}.share-hint{font-size:12px;color:#999;font-weight:400;margin-left:4px}.share-button.shared .share-hint{color:#4a90e2}.interview-detail-view{width:100%;height:100%;display:flex;flex-direction:column;overflow:hidden;box-sizing:border-box;position:relative}.interview-detail-header{position:absolute;top:8px;left:20px;right:50px;display:flex;align-items:center;justify-content:flex-start;gap:8px;padding:0;border-bottom:none;flex-shrink:0;z-index:10}.interview-detail-header h3{margin:0;font-size:18px;font-weight:600;color:#1a1a1a;letter-spacing:-.5px}.resume-interview-btn{padding:4px 14px;background:#f0f0f0;color:#666;border:none;border-radius:20px;font-size:12px;font-weight:400;cursor:pointer;transition:all .15s;white-space:nowrap;margin-left:4px}.resume-interview-btn:hover:not(:disabled){background:#e0e0e0;color:#333}.resume-interview-btn:disabled{opacity:.5;cursor:not-allowed}.interview-detail-content{flex:1;overflow-y:auto;padding:56px 24px 24px}.interview-section{margin-bottom:32px;padding-bottom:8px;border-bottom:1px solid #e0e0e0}.interview-section:last-child{border-bottom:none;padding-bottom:0;margin-bottom:0}.section-title{margin:0 0 20px;font-size:15px;font-weight:600;color:#333}.info-row{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid #f0f0f0}.info-row:last-child{border-bottom:none;padding-bottom:4px}.info-label{font-size:14px;color:#666}.info-value{font-size:14px;color:#333;font-weight:500}.subsection{margin-bottom:24px}.subsection:last-child{margin-bottom:0}.subsection-title{margin:0 0 10px;font-size:13px;font-weight:600;color:#333}.simple-list{margin:0;padding-left:18px;list-style:disc}.simple-list li{margin-bottom:6px;color:#666;font-size:14px;line-height:1.6}.simple-list li:last-child{margin-bottom:0}.subsection-text{margin:0;color:#666;font-size:14px;line-height:1.7}.qa-item{margin-bottom:32px;padding-bottom:24px;border-bottom:1px solid #e8e8e8}.qa-item:last-child{margin-bottom:0;border-bottom:none;padding-bottom:0}.qa-meta{display:flex;justify-content:space-between;margin-bottom:16px;padding-bottom:8px;border-bottom:1px solid #f0f0f0}.qa-meta span{font-size:13px;color:#666}.qa-score-text{font-weight:600;color:#333}.qa-block{margin-bottom:14px}.qa-block:last-child{margin-bottom:0}.qa-label{font-size:12px;color:#999;margin-bottom:6px;text-transform:uppercase;letter-spacing:.3px}.qa-content{font-size:14px;color:#333;line-height:1.7}.shared-notes-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#12241e2e;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);display:flex;align-items:center;justify-content:center;z-index:9999999;padding:24px;animation:fadeIn .2s ease}.shared-notes-modal{width:clamp(880px,80vw,1080px);max-height:78vh;background:linear-gradient(160deg,#fffffff7,#f2faf6f7);border:1px solid rgba(102,185,156,.2);border-radius:28px;box-shadow:0 32px 68px #122a2133;display:flex;flex-direction:column;overflow:hidden}.shared-notes-header{display:flex;align-items:flex-start;justify-content:space-between;padding:24px 32px;border-bottom:1px solid rgba(102,185,156,.18)}.shared-notes-header-text{display:flex;flex-direction:column;gap:4px}.shared-note-list-author,.shared-note-list-doc,.shared-note-list-date{display:inline-flex;align-items:center;gap:4px}.shared-notes-header-text h3{margin:0;font-size:22px;font-weight:700;color:#0f2a22}.shared-notes-counter{display:block;margin-top:6px;font-size:13px;color:#1b3f3499}.shared-notes-close{width:36px;height:36px;border-radius:12px;border:none;background:#63ba9a24;color:#1b362db3;font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease}.shared-notes-close:hover{background:#63ba9a42;color:#1b362df2}.shared-notes-body{flex:1;display:flex;gap:24px;padding:24px 32px 28px;min-height:0}.shared-notes-list-panel{width:320px;display:flex;flex-direction:column;gap:16px;border-right:1px solid rgba(102,185,156,.12);padding-right:24px;min-height:0}.shared-notes-list{flex:1;display:flex;flex-direction:column;overflow-y:auto;padding-right:6px}.shared-note-list-item{display:flex;flex-direction:column;gap:6px;width:100%;padding:10px 0;border:none;border-bottom:1px solid rgba(102,185,156,.22);background:transparent;color:#1f4537;text-align:left;cursor:pointer;transition:color .2s ease,background .2s ease}.shared-note-list-item:last-child{border-bottom:none}.shared-note-list-item:hover{background:#e4f4ec73}.shared-note-list-item.active{background:#e0f5ecbf;color:#1f4d3d}.shared-note-list-title{font-size:13px;font-weight:600;margin:0;width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.shared-note-list-meta{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:11px;color:#1b3f348c}.shared-note-list-status{margin-top:2px;padding:2px 8px;font-size:11px;font-weight:600;border-radius:999px;background:#63ba9a38;color:#2f7b62}.shared-notes-empty{padding:40px 12px;text-align:center;font-size:13px;color:#1b3f348c}.shared-notes-load-more-btn{padding:9px 16px;border-radius:999px;border:none;background:#e0f5ece6;color:#2f8e6f;font-size:12px;font-weight:600;cursor:pointer;transition:all .2s ease}.shared-notes-load-more-btn:hover{background:#d2f0e4fa;color:#1f4d3d}.shared-notes-detail-panel{flex:1;display:flex;flex-direction:column;gap:16px;min-width:0;min-height:0}.shared-note-detail-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;min-height:8px}.shared-note-detail-info{display:none}.shared-note-detail-title{font-size:18px;font-weight:700;margin:0;color:#0f2a22;word-break:break-word}.shared-note-detail-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:#1b3f3499}.shared-note-detail-badge{padding:2px 8px;border-radius:999px;background:#63ba9a2e;color:#2f7b62;font-size:11px;font-weight:600}.shared-note-detail-copy{padding:10px 22px;border-radius:999px;border:none;background:linear-gradient(135deg,#60b494,#4aa381);color:#fff;font-size:13px;font-weight:600;cursor:pointer;transition:background .2s ease,box-shadow .2s ease;box-shadow:0 18px 32px #50a88642}.shared-note-detail-copy:hover:not(:disabled){background:linear-gradient(135deg,#69c09f,#55b08c)}.shared-note-detail-copy:disabled{opacity:.6;cursor:not-allowed;box-shadow:none}.shared-note-detail-copy.copied{background:#63ba9a66;color:#1f4d3d;box-shadow:none}.shared-note-detail-content{flex:1;overflow-y:auto;padding:0 4px;color:#1f4537;line-height:1.7;white-space:pre-wrap;word-break:break-word}.shared-notes-placeholder{flex:1;display:flex;align-items:center;justify-content:center;background:#e4f4ec99;border:1px dashed rgba(102,185,156,.35);border-radius:20px;color:#1b3f348c;font-size:14px}.shared-note-inline-copy{padding:2px 10px;border-radius:999px;border:none;background:#e0f5ecd9;color:#2f8e6f;font-size:11px;font-weight:600;cursor:pointer;transition:background .2s ease}.shared-note-inline-copy:hover:not(:disabled){background:#d2f0e4f2}.shared-note-inline-copy:disabled{opacity:.6;cursor:not-allowed}.shared-note-inline-copy.copied{background:#63ba9a38;color:#1f4d3d}.shared-note-detail-meta span{display:inline-flex;align-items:center;gap:4px}.rename-input:focus{border-color:#999}.history-rename-row{display:flex;align-items:center;gap:8px;width:100%}.history-rename-actions{display:inline-flex;align-items:center;gap:6px}.rename-confirm-btn,.rename-cancel-btn{padding:4px 10px;border-radius:999px;border:1px solid rgba(99,186,154,.3);background:#eef9f4e6;font-size:12px;font-weight:500;color:#2a5f4b;cursor:pointer;transition:background .2s ease,border-color .2s ease,color .2s ease}.rename-confirm-btn:hover,.rename-cancel-btn:hover{background:#d2f0e4f2;border-color:#63ba9a80;color:#1f4537}.rename-confirm-btn:disabled{opacity:.5;cursor:not-allowed}.history-item-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#fff9;display:flex;align-items:center;justify-content:center;font-size:12px;color:#2f8e6f;pointer-events:none}.resizable-layout{display:flex;height:100%;width:100%;position:relative;overflow:hidden}.resizable-layout.has-maximized{overflow:hidden}.resizable-layout.dragging{cursor:col-resize;-webkit-user-select:none;user-select:none}.resizable-panel{height:100%;overflow:hidden;flex-shrink:0;position:relative;transition:all .3s ease;box-sizing:border-box}.resizable-panel.left-panel{border-right:1px solid #e0e0e0}.resizable-panel.center-panel{flex:1;min-width:0}.resizable-panel.right-panel{border-left:1px solid #e0e0e0}.panel-maximize-btn{position:absolute;top:8px;right:8px;width:28px;height:28px;border:none;background:#fffffff2;color:#666;font-size:16px;cursor:pointer;z-index:999999!important;border-radius:6px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px #00000026;transition:all .2s ease;padding:0;line-height:1;pointer-events:auto!important;border:1px solid #e0e0e0}.panel-maximize-btn:hover{background:#f5f5f5;color:#1a1a1a;transform:scale(1.1);box-shadow:0 4px 16px #0003;border-color:#1a1a1a}.panel-maximize-btn:active{transform:scale(.95)}.resizable-panel.minimized{display:none!important}.resizable-panel.maximized{width:100%!important;overflow:hidden!important}.resizable-panel.maximized .panel-maximize-btn{position:absolute!important;top:12px!important;right:12px!important;z-index:99999!important}.resizable-panel.maximized .panel-maximize-btn:hover{transform:scale(1.1)!important}.resize-handle{width:5px;height:100%;cursor:col-resize;position:relative;flex-shrink:0;z-index:10;transition:background-color .2s ease}.resize-handle:hover{background-color:#1a1a1a14}.resize-handle.left-handle{margin-left:-1px}.resize-handle.right-handle{margin-right:-1px}.resize-handle-bar{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:2px;height:60px;background-color:transparent;border-radius:2px;transition:all .2s ease;pointer-events:none}.resize-handle:hover .resize-handle-bar{background-color:#1a1a1a4d;height:80px}.resize-handle:active .resize-handle-bar{background-color:#1a1a1a;height:100px}.resizable-layout.dragging .resize-handle-bar{background-color:#1a1a1a;height:100%}.resizable-layout.dragging *{-webkit-user-select:none!important;user-select:none!important;pointer-events:none}.resizable-layout.dragging .resize-handle{pointer-events:auto}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden;background:#fff}.app{min-height:100vh;background:#fff;position:relative;overflow-x:hidden}.home-page{position:relative;z-index:1;min-height:100vh}.hero-section{min-height:60vh;display:flex;align-items:center;justify-content:center;padding:120px 20px 30px;position:relative}.hero-content{text-align:center;max-width:900px;width:100%}.hero-subtitle{font-size:1.35rem;color:#1a1a1a;margin-bottom:50px;line-height:1.8;font-weight:300}.home-navbar{position:fixed;top:0;left:0;right:0;height:64px;background:transparent;backdrop-filter:none;-webkit-backdrop-filter:none;border-bottom:none;z-index:100}.home-nav-content{max-width:100%;height:100%;margin:0 auto;padding:0 2rem;display:flex;align-items:center;justify-content:flex-start;gap:1.5rem;position:relative}.home-logo{display:flex;align-items:center;gap:.75rem;cursor:pointer;-webkit-user-select:none;user-select:none;flex-shrink:0}.home-logo-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#8bd1b7,#72c3a5 48%,#60b494);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.82rem;font-weight:600;letter-spacing:.04em;text-transform:none;box-shadow:0 10px 24px #66b99c47}.home-logo-text-container{display:flex;flex-direction:column;gap:0}.home-nav-links{display:flex;align-items:center;gap:.75rem;margin-left:1.5rem}.home-nav-link{border:none;background:transparent;font-size:.9rem;color:#64748b;padding:.35rem .9rem;border-radius:999px;cursor:pointer;transition:background .15s ease,color .15s ease}.home-nav-link:hover{background:#e2e8f0;color:#0f172a}.home-nav-link.active{background:#0f766e;color:#ecfeff}.home-logo-subtitle{font-size:.65rem;color:#888;font-weight:300;margin:2px 0 0;line-height:1;letter-spacing:.3px}.logo-tree{font-size:1.8rem}.logo-text{font-size:1.2rem;font-weight:600;color:#134134;white-space:nowrap;letter-spacing:-.3px}.home-auth-buttons{display:flex;gap:.5rem;align-items:center}.home-login-button,.home-register-button{background:none;border:none;color:#1a1a1a;font-size:.95rem;font-weight:400;cursor:pointer;transition:all .2s ease;padding:.5rem 1.5rem;border-radius:6px}.home-login-button:hover,.home-register-button:hover{background:#1a1a1a;color:#fff}.home-login-button-small{background:none;border:none;color:#1a1a1a;font-size:.8rem;font-weight:400;cursor:pointer;transition:all .2s ease;padding:.4rem 1rem;border-radius:4px}.home-login-button-small:hover{background:#1a1a1a;color:#fff}.home-user-menu{position:relative;flex-shrink:0;margin-left:auto;padding-left:1.5rem}.home-login-container{margin-left:auto;display:flex;align-items:center}.home-user-button{display:flex;align-items:center;gap:.625rem;background:transparent;border:none;padding:.5rem 1rem;border-radius:8px;cursor:pointer;transition:all .2s ease;color:#1a1a1a;font-size:.9rem;max-width:240px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.home-user-button:hover{background:#0000000d}.home-user-avatar{width:28px;height:28px;border-radius:50%;background:#1a1a1a;display:flex;align-items:center;justify-content:center;font-weight:500;font-size:.9rem;color:#fff}.home-user-name{font-weight:400;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.home-user-dropdown{position:absolute;top:calc(100% + .5rem);right:0;background:#fff;border:.5px solid #d0d0d0;border-radius:8px;min-width:200px;box-shadow:0 2px 8px #00000014;overflow:hidden;z-index:1000}.home-dropdown-item{width:100%;padding:.875rem 1.25rem;text-align:left;background:none;border:none;color:#1a1a1a;cursor:pointer;transition:all .15s ease;font-size:.9rem;font-weight:400;border-bottom:.5px solid #e8e8e8}.home-dropdown-item:last-child{border-bottom:none}.home-dropdown-item:hover{background:#f5f5f5}.home-user-info-dropdown{cursor:default}.home-user-info-dropdown:hover{background:none}.home-user-email{color:#666;font-size:.85rem;font-weight:300;margin-bottom:.25rem}.home-user-full-name{color:#1a1a1a;font-weight:400;font-size:.9rem}.navbar{position:fixed;top:0;left:0;right:0;height:64px;background:#fff;border-bottom:none;z-index:100}.nav-content{max-width:100%;height:100%;margin:0 auto;padding:0 2rem;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:2rem}.logo{display:flex;align-items:center;gap:.5rem;cursor:pointer;transition:all .2s ease;-webkit-user-select:none;user-select:none;justify-self:start}.logo:hover .logo-text{color:#666}.nav-title-container{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);pointer-events:none;max-width:60%}.nav-title{font-size:1.1rem;color:#1a1a1a;font-weight:400;margin:0;text-align:center;white-space:nowrap;display:flex;justify-content:center;align-items:center;pointer-events:auto;overflow:hidden;text-overflow:ellipsis;max-width:100%}.nav-subtitle{font-size:.7rem;color:#666;font-weight:300;margin:0;text-align:center;white-space:nowrap;letter-spacing:.5px}.nav-title.editable{cursor:pointer;display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:6px;transition:all .2s ease;justify-content:center;pointer-events:auto}.nav-title.editable:hover{background:#f5f5f5}.nav-title .edit-icon{font-size:.9rem;opacity:0;transition:opacity .2s ease}.nav-title.editable:hover .edit-icon{opacity:1}.nav-title-edit{display:flex;align-items:center;gap:8px;justify-content:center;pointer-events:auto;max-width:60vw}.doc-name-input{font-size:1.1rem;font-weight:400;color:#1a1a1a;padding:8px 12px;border:1px solid #000;border-radius:4px;background:#fff;outline:none;width:clamp(200px,32vw,440px);text-align:center;animation:borderFadeIn .3s ease-out}@keyframes borderFadeIn{0%{border-color:transparent}to{border-color:#000}}.nav-login-button{background:none;border:none;color:#1a1a1a;font-size:.95rem;font-weight:400;cursor:pointer;transition:all .2s ease;padding:.5rem 1.5rem;border-radius:6px;white-space:nowrap;justify-self:end}.nav-login-button:hover{background:#1a1a1a;color:#fff}.main-layout{display:flex;height:calc(100vh - 64px);margin-top:64px;overflow:hidden;background:#fafafa;gap:0px}.left-sidebar{min-width:250px;max-width:500px;background:#fff;border-right:.5px solid #e8e8e8;overflow-y:auto;flex-shrink:0}.sidebar-content{padding:1.5rem}.sidebar-section{margin-bottom:2rem}.sidebar-section:last-child{margin-bottom:0}.sidebar-title{font-size:1rem;font-weight:400;color:#1a1a1a;margin:0 0 1rem;padding-bottom:.5rem;border-bottom:.5px solid #e8e8e8}.sidebar-text{color:#666;line-height:1.7;font-size:.9rem;font-weight:300;margin:0}.meta-list{display:flex;flex-direction:column;gap:.75rem}.meta-row{display:flex;justify-content:space-between;align-items:center;padding:.5rem .75rem;background:#fafafa;border:.5px solid #e8e8e8;border-radius:6px}.meta-row.cache-hit-row{background:#f5f5f5;border-color:#d0d0d0}.meta-list-plain{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.5rem}.meta-item-plain{padding:.25rem 0;display:flex;align-items:baseline;gap:.25rem}.meta-label{font-size:.85rem;color:#666;font-weight:300}.meta-value{font-size:.9rem;font-weight:400;color:#1a1a1a}.legend-list{display:flex;flex-direction:column;gap:.65rem}.legend-row{display:flex;align-items:center;gap:.75rem;padding:.4rem 0}.legend-icon{width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:1rem;flex-shrink:0}.legend-text{font-size:.875rem;color:#555}.guide-list{display:flex;flex-direction:column;gap:.5rem}.guide-text{color:#666;font-size:.875rem;line-height:1.6;margin:0;padding-left:.25rem}.center-content{flex:1;overflow:hidden;position:relative;background:#fafafa;display:flex;flex-direction:column;border-left:.5px solid #e8e8e8;border-right:.5px solid #e8e8e8}.expanding-task-banner{background:#fafafa;border:.5px solid #e8e8e8;border-radius:8px;padding:.75rem 1rem;margin-bottom:.75rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-shrink:0}.task-info{display:flex;align-items:center;gap:.5rem}.task-icon{font-size:1.1rem;animation:rotate 2s linear infinite}@keyframes rotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.task-text{color:#666;font-size:.875rem;font-weight:300}.task-text strong{color:#1a1a1a;font-weight:400}.task-warning{color:#999;font-size:.75rem;font-weight:300;white-space:nowrap}.flowchart-top-info{background:#fff;padding:.65rem 1.25rem;margin-bottom:0;flex-shrink:0;border-bottom:.5px solid #e8e8e8}.info-row{display:flex;align-items:center;justify-content:center;gap:1rem;padding:.25rem 0}.info-row:first-child{padding-top:0;border-bottom:none;padding-bottom:.35rem}.info-row:last-child{padding-bottom:0;padding-top:.35rem;border-top:.5px solid #e8e8e8}.legend-items-horizontal{display:flex;gap:1rem;flex-wrap:nowrap;align-items:center}.legend-item-compact{display:flex;align-items:center;gap:.35rem}.legend-icon-small{display:inline-flex;align-items:center;justify-content:center;font-size:1rem}.legend-label{font-size:.75rem;color:#666;font-weight:300;white-space:nowrap}.tips-items-horizontal{display:flex;gap:1.25rem;flex-wrap:nowrap;align-items:center}.tip-item{font-size:.75rem;color:#666;font-weight:300;white-space:nowrap}.right-sidebar{min-width:300px;max-width:600px;background:#fff;border-left:.5px solid #e8e8e8;overflow-y:auto;flex-shrink:0;position:relative}.sidebar-placeholder{height:100%;display:flex;align-items:center;justify-content:center;padding:2rem}.placeholder-content{text-align:center}.placeholder-icon{font-size:4rem;margin-bottom:1rem;opacity:.2}.placeholder-content h3{font-size:1.25rem;color:#1a1a1a;font-weight:400;margin:0 0 .5rem}.placeholder-content p{color:#999;font-size:.9rem;font-weight:300;margin:.25rem 0}.resize-handle{width:4px;cursor:col-resize;background:transparent;position:relative;flex-shrink:0;z-index:10;transition:background .2s ease;display:flex;align-items:center;justify-content:center}.resize-handle:hover{background:#f5f5f5}.resize-handle-bar{width:.5px;height:40px;background:#d0d0d0;border-radius:1px;transition:all .2s ease}.resize-handle:hover .resize-handle-bar{height:60px;width:1px;background:#1a1a1a}.resize-handle:active .resize-handle-bar{background:#000}.left-sidebar::-webkit-scrollbar,.right-sidebar::-webkit-scrollbar{width:4px}.left-sidebar::-webkit-scrollbar-track,.right-sidebar::-webkit-scrollbar-track{background:transparent}.left-sidebar::-webkit-scrollbar-thumb,.right-sidebar::-webkit-scrollbar-thumb{background:#d0d0d0;border-radius:2px}.left-sidebar::-webkit-scrollbar-thumb:hover,.right-sidebar::-webkit-scrollbar-thumb:hover{background:#999}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;background:#fff;position:relative;overflow:hidden}.loading-content{display:flex;flex-direction:column;align-items:center;max-width:500px;width:90%;position:relative;z-index:1;padding:40px}.loading-spinner{width:80px;height:80px;position:relative;margin-bottom:32px}.loading-spinner:before,.loading-spinner:after{content:"";position:absolute;border-radius:50%;animation:spin 1.5s linear infinite}.loading-spinner:before{width:100%;height:100%;border:4px solid transparent;border-top-color:#4dd0e1;border-right-color:#4dd0e1}.loading-spinner:after{width:60px;height:60px;top:10px;left:10px;border:4px solid transparent;border-bottom-color:#80deea;border-left-color:#80deea;animation:spin 2s linear infinite reverse}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.8;transform:scale(1.05)}}.loading-text{font-size:16px;color:#666;margin-bottom:32px;text-align:center;font-weight:500}.progress-bar-wrapper{width:100%;height:8px;background:linear-gradient(90deg,#e0f7fa,#b2ebf2);border-radius:20px;overflow:hidden;margin-bottom:16px;box-shadow:inset 0 2px 4px #00838f1a;position:relative}.progress-bar-wrapper:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.4),transparent);animation:shimmer 2s infinite}@keyframes shimmer{to{left:100%}}.progress-bar{height:100%;background:linear-gradient(90deg,#26c6da,#00acc1,#0097a7);border-radius:20px;position:relative;transition:width .4s cubic-bezier(.4,0,.2,1);box-shadow:0 0 20px #26c6da66}.progress-bar:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(90deg,transparent 0%,rgba(255,255,255,.3) 50%,transparent 100%);animation:progressFlow 2s linear infinite}@keyframes progressFlow{0%{transform:translate(-100%)}to{transform:translate(100%)}}.progress-text{font-size:28px;font-weight:700;color:#1a1a1a;text-align:center;font-variant-numeric:tabular-nums;letter-spacing:2px}.error-container{display:flex;align-items:center;justify-content:center;min-height:60vh;padding:2rem}.error-box{background:#fff;padding:2.5rem 3rem;border-radius:12px;text-align:center;max-width:500px;box-shadow:0 2px 8px #00000014;border:.5px solid #d0d0d0}.error-icon{font-size:40px;margin-bottom:.75rem}.error-title{font-size:20px;color:#1a1a1a;font-weight:600;margin-bottom:.5rem}.error-subtitle{font-size:14px;color:#444;margin:0 0 .75rem}.error-text{color:#666;font-size:13px;margin-bottom:.75rem;line-height:1.6}.error-feedback{font-size:12px;color:#888;line-height:1.6;margin-bottom:1.75rem}.error-feedback a{color:#2f7e79;text-decoration:underline}.retry-button{background:#1a1a1a;color:#fff;border:none;padding:.875rem 2rem;border-radius:8px;font-size:1rem;font-weight:400;cursor:pointer;transition:all .2s ease}.retry-button:hover{background:#000}.user-menu{position:relative;justify-self:end}.user-button{display:flex;align-items:center;gap:.625rem;background:#fff;border:none;padding:.5rem 1rem;border-radius:8px;cursor:pointer;transition:all .2s ease;color:#1a1a1a;font-size:.9rem}.user-button:hover{background:#f5f5f5}.user-avatar{width:28px;height:28px;border-radius:50%;background:#1a1a1a;display:flex;align-items:center;justify-content:center;font-weight:500;font-size:.9rem;color:#fff}.user-name{font-weight:400}.user-dropdown{position:absolute;top:calc(100% + .5rem);right:0;background:#fff;border:.5px solid #d0d0d0;border-radius:8px;min-width:200px;box-shadow:0 2px 8px #00000014;overflow:hidden;z-index:1000}.dropdown-item{width:100%;padding:.875rem 1.25rem;text-align:left;background:none;border:none;color:#1a1a1a;cursor:pointer;transition:all .15s ease;font-size:.9rem;font-weight:400;border-bottom:.5px solid #e8e8e8}.dropdown-item:last-child{border-bottom:none}.dropdown-item:hover{background:#f5f5f5}.dropdown-item.user-info{cursor:default}.dropdown-item.user-info:hover{background:none}.user-email{color:#666;font-size:.85rem;font-weight:300;margin-bottom:.25rem}.user-full-name{color:#1a1a1a;font-weight:400;font-size:.9rem}@media (max-width: 1400px){.left-sidebar{width:280px}.right-sidebar{width:380px}}@media (max-width: 1024px){.left-sidebar{width:260px}.right-sidebar{width:340px}}@media (max-width: 768px){.main-layout{flex-direction:column}.left-sidebar{width:100%;height:auto;border-right:none;border-bottom:1px solid rgba(0,0,0,.1)}.center-content{height:60vh}.right-sidebar{width:100%;border-left:none;border-top:1px solid rgba(0,0,0,.1)}}.document-layout{height:100vh;padding-top:80px;overflow:hidden}.document-chat-container{width:100%;height:100%;background:#fff;display:flex;flex-direction:column;position:relative}.chat-header{position:absolute;top:8px;left:24px;right:50px;z-index:10;background:transparent;display:flex;align-items:center;gap:16px}.chat-title{font-size:18px;font-weight:600;color:#1a1a1a;margin:0;letter-spacing:-.5px}.chat-control-buttons{display:flex;gap:6px;align-items:center}.chat-control-btn{padding:3px 10px;font-size:12px;font-weight:500;color:#fff;background:#1a1a1a;border:none;border-radius:5px;cursor:pointer;transition:all .2s ease;white-space:nowrap;display:flex;align-items:center;gap:4px;height:24px}.chat-control-btn:hover{background:#333}.chat-control-btn:active{transform:scale(.98)}.chat-control-btn.delete:hover{background:#d32f2f}.quick-action-buttons{display:flex;gap:8px;align-items:center}.quick-action-btn{padding:4px 12px;font-size:13px;font-weight:400;color:#666;background:#f5f5f5;border:1px solid #e0e0e0;border-radius:6px;cursor:pointer;transition:all .2s ease;white-space:nowrap;display:flex;align-items:center;gap:4px;height:28px}.quick-action-btn:hover{background:#ebebeb;border-color:#ccc;color:#1a1a1a}.quick-action-btn:active{transform:scale(.98)}.document-chat-main{flex:1;width:100%;height:100%;background:#fff;display:flex;flex-direction:column;overflow:hidden}.document-actions-sidebar{width:100%;height:100%;background:#fff;display:flex;flex-direction:column;overflow-y:auto}.actions-header{position:absolute;top:8px;left:24px;right:50px;padding:0;border-bottom:none;z-index:10;display:flex;align-items:center;flex-shrink:0}.actions-header h3{font-size:18px;font-weight:600;color:#1a1a1a;margin:0;letter-spacing:-.5px}.actions-content{padding:12px 16px 16px;display:grid;grid-template-columns:repeat(2,1fr);gap:10px;box-sizing:border-box;width:100%;max-width:100%;min-width:0;overflow:hidden;flex-shrink:0}.action-card{width:100%;max-width:100%;min-width:0;padding:10px 12px;background:#f5f5f5;border:1px solid #e0e0e0;border-radius:10px;cursor:pointer;display:flex;flex-direction:row;align-items:center;justify-content:flex-start;gap:10px;transition:all .3s ease;min-height:auto;text-align:left;box-sizing:border-box;overflow:hidden}.action-card-wrapper{width:100%}.action-card.blocked,.action-card-wrapper.blocked .action-card{opacity:.45;cursor:not-allowed;border-style:dashed;box-shadow:none}.action-card.blocked .action-icon{filter:grayscale(1)}.action-card:hover:not(:disabled){background:#ebebeb;border-color:#ccc;box-shadow:0 2px 8px #00000014}.action-card:disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.action-card.generating{cursor:wait;pointer-events:none;position:relative;overflow:hidden}.action-card.generating:before{content:"";position:absolute;top:0;left:-150%;width:150%;height:100%;background:linear-gradient(90deg,#fff0,#ffffff26 30%,#fffc,#ffffff26 70%,#fff0);animation:shimmer 1.8s infinite;pointer-events:none;z-index:1}.action-card.generating{background:linear-gradient(135deg,#f5f5f5,#fafafa);animation:pulse-bg 2s ease-in-out infinite}@keyframes pulse-bg{0%,to{opacity:1}50%{opacity:.95}}@keyframes shimmer{0%{left:-150%}to{left:100%}}.action-icon{font-size:22px;flex-shrink:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;position:relative;z-index:2}.action-card.interview-action .action-icon{font-size:20px}.action-text{display:flex;flex-direction:column;align-items:flex-start;gap:1px;flex:1;min-width:0;position:relative;z-index:2}.action-text h4{font-size:14px;font-weight:600;margin:0;line-height:1.3;word-break:break-word;width:100%}.action-text p{font-size:11px;color:#666;margin:0;line-height:1.3;word-break:break-word;width:100%}.document-info-card{background:#fff;border:1px solid #e0e0e0;border-radius:12px;overflow:hidden}.info-content{padding:16px;display:flex;flex-direction:column;gap:12px}.info-row{display:flex;justify-content:space-between;align-items:center}.info-label{font-size:13px;color:#666}.info-value{font-size:13px;color:#1a1a1a;font-weight:500;text-align:right;max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}@media (max-width: 1024px){.document-layout{flex-direction:column}.document-chat-main{height:60vh}.document-actions-sidebar{width:100%;height:40vh;border-left:none;border-top:1px solid #e0e0e0}}@media (max-width: 768px){.document-actions-sidebar{width:100%;height:40vh}.actions-content{padding:16px}}
