@charset "UTF-8";.navbar{position:fixed;top:0;left:0;right:0;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:1000;border-bottom:1px solid #F0F0F0}.navbar__content{display:flex;align-items:center;justify-content:space-between;height:64px}.navbar__brand{display:flex;align-items:center;gap:8px;font-size:20px;font-weight:600;color:#333;text-decoration:none}.navbar__logo-icon{font-size:28px}.navbar__logo-text{background:linear-gradient(135deg,#f5a623,#ff8c00);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.navbar__nav{display:flex;gap:32px}.navbar__nav a{color:#666;font-size:14px;transition:color .15s ease}.navbar__nav a:hover{color:#f5a623}@media(max-width:768px){.navbar__nav{display:none}}.navbar__actions{display:flex;gap:16px}.footer{margin-top:auto;padding:24px 0;background:#f5f5f5;text-align:center}.footer p{font-size:14px;color:#999}.sidebar-search{display:flex;align-items:center;gap:8px;padding:16px;flex-shrink:0;position:relative}.sidebar-search__input-wrapper{flex:1;display:flex;align-items:center;gap:8px;padding:8px 16px;background:#f5f5f5;border-radius:8px;transition:all .15s ease}.sidebar-search__input-wrapper:focus-within{background:#fff;box-shadow:0 0 0 2px #f5a62333}.sidebar-search__icon{font-size:14px;opacity:.6;flex-shrink:0;display:flex;align-items:center;justify-content:center;color:#666}.sidebar-search__spinner{width:14px;height:14px;border:2px solid #E8E8E8;border-top-color:#f5a623;border-radius:50%;animation:spin .6s linear infinite}.sidebar-search__input{flex:1;width:100%;border:none;background:transparent;font-size:14px;outline:none;color:#333}.sidebar-search__input::placeholder{color:#999}.sidebar-search__new-btn{width:32px;height:32px;border:none;background:#f5a623;color:#fff;border-radius:8px;cursor:pointer;font-size:18px;font-weight:500;display:flex;align-items:center;justify-content:center;transition:all .15s ease;flex-shrink:0}.sidebar-search__new-btn:hover{background:#e09000}.sidebar-search__results{position:absolute;top:100%;left:16px;right:16px;background:#fff;border:1px solid #F0F0F0;border-radius:8px;box-shadow:0 8px 24px #0000001f;max-height:320px;overflow-y:auto;z-index:100;animation:slideDown .15s ease}@keyframes slideDown{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.sidebar-search__result-item{padding:8px 16px;cursor:pointer;border-bottom:1px solid #F0F0F0;transition:background .15s ease}.sidebar-search__result-item:last-of-type{border-bottom:none}.sidebar-search__result-item:hover,.sidebar-search__result-item--active{background:#f5f5f5}.sidebar-search__result-title{font-size:14px;font-weight:500;color:#333;margin-bottom:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sidebar-search__result-meta{display:flex;align-items:center;gap:8px;font-size:12px;color:#999}.sidebar-search__result-time:before{content:"·";margin-right:4px}.sidebar-search__results-footer{padding:4px 16px;font-size:12px;color:#999;background:#f5f5f5;text-align:center}.sidebar-search__no-results{padding:24px;text-align:center;font-size:14px;color:#999}.sidebar-menu{padding:8px 0;flex-shrink:0}.sidebar-menu__item{display:flex;align-items:center;gap:8px;padding:8px 16px;margin:0 8px;border-radius:8px;cursor:pointer;transition:background .15s ease;color:#666}.sidebar-menu__item:hover{background:#f5f5f5}.sidebar-menu__item.active{background:#fff3e0;color:#f5a623}.sidebar-menu__item.active .sidebar-menu__icon{opacity:1}.sidebar-menu__icon{width:20px;font-size:16px;text-align:center;opacity:.8;flex-shrink:0}.sidebar-menu__text{flex:1;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#fff3e0,#fafafa);padding:24px}.auth-container{width:100%;max-width:420px}.auth-header{text-align:center;margin-bottom:32px}.auth-logo{display:inline-flex;align-items:center;gap:8px;font-size:24px;font-weight:600;color:#333;text-decoration:none}.auth-logo__icon{font-size:36px}.auth-logo__text{background:linear-gradient(135deg,#f5a623,#ff8c00);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.auth-card{padding:48px}.auth-card__title{text-align:center;font-size:24px;font-weight:600;margin-bottom:4px;color:#333}.auth-card__subtitle{text-align:center;color:#666;margin-bottom:32px}.auth-card__footer{text-align:center;margin-top:24px;padding-top:24px;border-top:1px solid #F0F0F0}.auth-card__footer p{font-size:14px;color:#666}.action-card{display:flex;align-items:center;gap:16px;padding:16px 24px;background:#fff;border:1px solid #F0F0F0;border-radius:12px;cursor:pointer;transition:all .15s ease}.action-card:hover{border-color:#f5a623;box-shadow:0 1px 2px #0000000d}.action-card__icon{font-size:24px;width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:#f5f5f5;border-radius:8px;flex-shrink:0}.action-card__content{flex:1;min-width:0}.action-card__title{font-size:14px;font-weight:500;color:#333;margin-bottom:2px}.action-card__desc{font-size:12px;color:#999;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.document-item{display:flex;align-items:center;gap:16px;padding:8px 16px;border-radius:8px;cursor:pointer;transition:background .15s ease}.document-item:hover{background:#f5f5f5}.document-item__icon{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:#f5f5f5;border-radius:4px;font-size:16px;flex-shrink:0}.document-item__content{flex:1;min-width:0}.document-item__title{font-size:14px;font-weight:500;color:#333;margin-bottom:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.document-item__folder{font-size:12px;color:#999}.document-item__date{font-size:12px;color:#999;white-space:nowrap;flex-shrink:0}.document-item__actions{display:flex;gap:4px;flex-shrink:0;opacity:0;transition:opacity .15s ease}.document-item:hover .document-item__actions{opacity:1}.document-item__action{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border:none;border-radius:4px;background:#f5f5f5;color:#666;font-size:12px;cursor:pointer;transition:all .15s ease}.document-item__action:hover{background:#fff3e0;color:#f5a623}.document-item__action--danger:hover{background:#fff1f0;color:#ff4d4f}.tab-group{display:flex;gap:8px;border-bottom:1px solid #F0F0F0;padding-bottom:8px}.tab-group__item{padding:4px 16px;font-size:14px;color:#666;background:transparent;border:none;border-radius:8px;cursor:pointer;transition:all .15s ease}.tab-group__item:hover{background:#f5f5f5;color:#333}.tab-group__item.active{background:#fff3e0;color:#f5a623;font-weight:500}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.page-header__left{display:flex;align-items:center;gap:8px}.page-header__icon{font-size:24px}.page-header__title{font-size:20px;font-weight:600;color:#333}.page-header__actions{display:flex;gap:8px}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px;text-align:center}.empty-state__icon{font-size:48px;margin-bottom:16px;opacity:.6}.empty-state__title{font-size:18px;font-weight:500;color:#333;margin-bottom:4px}.empty-state__desc{font-size:14px;color:#666;max-width:300px}.empty-state__action{margin-top:24px}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal{background:#fff;border-radius:12px;box-shadow:0 8px 24px #0000001f;max-height:90vh;display:flex;flex-direction:column;animation:slideUp .2s ease}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.modal__header{display:flex;align-items:center;justify-content:space-between;padding:24px;border-bottom:1px solid #F0F0F0;flex-shrink:0}.modal__title{font-size:18px;font-weight:600;color:#333}.modal__close{width:32px;height:32px;border:none;background:transparent;color:#999;font-size:24px;cursor:pointer;border-radius:8px;display:flex;align-items:center;justify-content:center;transition:all .15s ease}.modal__close:hover{background:#f5f5f5;color:#333}.modal__content{padding:24px;overflow-y:auto;flex:1}.create-document-modal__subtitle{font-size:14px;color:#666;margin-bottom:16px}.create-document-modal__loading{text-align:center;padding:24px;color:#999}.create-document-modal__folders{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}.create-document-modal__folder{display:flex;align-items:center;gap:8px;padding:16px;border:1px solid #F0F0F0;border-radius:8px;cursor:pointer;transition:all .15s ease}.create-document-modal__folder:hover,.create-document-modal__folder.selected{border-color:#f5a623;background:#fff3e0}.create-document-modal__folder-icon{font-size:20px;color:#f5a623}.create-document-modal__folder-name{flex:1;font-size:14px;color:#333}.create-document-modal__folder-lock{font-size:14px;opacity:.5}.create-document-modal__add-folder{display:flex;align-items:center;gap:8px;width:100%;padding:16px;background:transparent;border:1px dashed #E8E8E8;border-radius:8px;color:#666;font-size:14px;cursor:pointer;transition:all .15s ease;margin-bottom:24px}.create-document-modal__add-folder:hover{border-color:#f5a623;color:#f5a623}.create-document-modal__add-folder span{font-size:18px}.create-document-modal__actions{margin-top:16px}.create-folder-modal__section{margin-bottom:24px}.create-folder-modal__label{font-size:14px;font-weight:500;color:#333;margin-bottom:16px}.create-folder-modal__input-group{display:flex;align-items:center;gap:8px;padding:8px 16px;border:1px solid #F0F0F0;border-radius:8px;margin-bottom:16px;transition:border-color .15s ease}.create-folder-modal__input-group:focus-within{border-color:#f5a623}.create-folder-modal__icon{font-size:20px;color:#f5a623}.create-folder-modal__input{flex:1;border:none;outline:none;font-size:14px;background:transparent}.create-folder-modal__input::placeholder{color:#999}.create-folder-modal__error{color:#ff4d4f;font-size:12px;margin-bottom:16px}.create-folder-modal__textarea{width:100%;padding:16px;border:1px solid #F0F0F0;border-radius:8px;font-size:14px;resize:vertical;min-height:100px;font-family:inherit;transition:border-color .15s ease}.create-folder-modal__textarea:focus{outline:none;border-color:#f5a623}.create-folder-modal__textarea::placeholder{color:#999}.create-folder-modal__submit{margin-top:16px}.edit-folder-modal__section{margin-bottom:24px}.edit-folder-modal__label{display:block;font-size:14px;font-weight:500;color:#333;margin-bottom:4px}.edit-folder-modal__input-group{display:flex;align-items:center;gap:8px;padding:8px 16px;background:#f5f5f5;border-radius:8px;border:1px solid #F0F0F0;transition:border-color .15s ease}.edit-folder-modal__input-group:focus-within{border-color:#f5a623}.edit-folder-modal__icon{font-size:18px}.edit-folder-modal__input{flex:1;border:none;background:transparent;font-size:16px;color:#333}.edit-folder-modal__input:focus{outline:none}.edit-folder-modal__input::placeholder{color:#999}.edit-folder-modal__textarea{width:100%;padding:8px 16px;background:#f5f5f5;border:1px solid #F0F0F0;border-radius:8px;font-size:16px;font-family:inherit;color:#333;resize:vertical;transition:border-color .15s ease}.edit-folder-modal__textarea:focus{outline:none;border-color:#f5a623}.edit-folder-modal__textarea::placeholder{color:#999}.edit-folder-modal__error{color:#ff4d4f;font-size:14px;margin-top:4px}.edit-folder-modal__actions{display:flex;justify-content:space-between;gap:16px;margin-top:32px;padding-top:24px;border-top:1px solid #F0F0F0}.edit-folder-modal__confirm{text-align:center;padding:24px 0}.edit-folder-modal__confirm-icon{font-size:48px;margin-bottom:16px}.edit-folder-modal__confirm-title{font-size:18px;font-weight:600;color:#333;margin-bottom:8px}.edit-folder-modal__confirm-text{font-size:14px;color:#999;margin-bottom:32px;line-height:1.6}.edit-folder-modal__confirm-actions{display:flex;justify-content:center;gap:16px}.resizable-sidebar{position:relative;height:100%;background:#fff;border-right:1px solid #F0F0F0;display:flex;flex-direction:column;flex-shrink:0}.resizable-sidebar--resizing{-webkit-user-select:none;user-select:none}.resizable-sidebar__content{flex:1;overflow-y:auto;display:flex;flex-direction:column}.resizable-sidebar__resizer{position:absolute;top:0;right:0;width:4px;height:100%;cursor:col-resize;background:transparent;transition:background .15s ease;z-index:10}.resizable-sidebar__resizer:hover,.resizable-sidebar--resizing .resizable-sidebar__resizer{background:#f5a623}.settings-panel__section{margin-bottom:24px}.settings-panel__section:last-child{margin-bottom:0}.settings-panel__section-title{font-size:16px;font-weight:600;color:#333;margin-bottom:16px;padding-bottom:8px;border-bottom:1px solid #F0F0F0}.settings-panel__info-grid{display:flex;flex-direction:column;gap:16px}.settings-panel__info-item{display:flex;align-items:center;justify-content:space-between;padding:8px 0}.settings-panel__info-item--action{padding-right:0}.settings-panel__info-label{font-size:14px;color:#666;flex-shrink:0;min-width:80px}.settings-panel__info-value{font-size:14px;color:#333;text-align:right;display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}.settings-panel__role-badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:9999px;font-size:12px;font-weight:500}.settings-panel__role-badge--admin{background:linear-gradient(135deg,#f5a623,#e09000);color:#fff}.settings-panel__role-badge--user{background:#f5f5f5;color:#666}.settings-panel__role-badge--guest{background:#f0f0f0;color:#999}.settings-panel__version-tag{display:inline-flex;align-items:center;padding:2px 8px;background:#f5f5f5;color:#666;border-radius:4px;font-size:12px;font-family:SF Mono,Monaco,Consolas,monospace}.settings-panel__theme-indicator{display:inline-flex;align-items:center;gap:4px;padding:4px 8px;border-radius:9999px;font-size:14px}.settings-panel__theme-indicator--light{background:linear-gradient(135deg,#fff9e6,#ffe4b5);color:#b8860b}.settings-panel__theme-indicator--dark{background:linear-gradient(135deg,#2d3748,#1a202c);color:#e2e8f0}.settings-panel__theme-dot{width:8px;height:8px;border-radius:50%}.settings-panel__theme-indicator--light .settings-panel__theme-dot{background:#ffd93d;box-shadow:0 0 6px #ffd93d99}.settings-panel__theme-indicator--dark .settings-panel__theme-dot{background:#a0aec0;box-shadow:0 0 6px #a0aec066}.settings-panel__change-password-btn{display:inline-flex;align-items:center;justify-content:center;padding:4px 16px;background:transparent;color:#f5a623;border:1px solid #F5A623;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:all .15s ease}.settings-panel__change-password-btn:hover{background:#f5a623;color:#fff}.settings-panel__change-password-btn:active{transform:scale(.98)}.ai-provider-modal{padding:8px 0}.ai-provider-modal__error{padding:8px 16px;background:#ff4d4f1a;color:#ff4d4f;border-radius:8px;font-size:14px;margin-bottom:16px}.ai-provider-modal__field{margin-bottom:16px}.ai-provider-modal__label{display:flex;align-items:center;gap:4px;font-size:14px;font-weight:500;color:#333;margin-bottom:4px}.ai-provider-modal__label-hint{font-weight:400;color:#999;font-size:12px}.ai-provider-modal__input,.ai-provider-modal__select{width:100%;padding:8px 16px;border:1px solid #E8E8E8;border-radius:8px;font-size:14px;color:#333;background:#fff;transition:all .15s ease}.ai-provider-modal__input:focus,.ai-provider-modal__select:focus{outline:none;border-color:#f5a623;box-shadow:0 0 0 3px #f5a6231a}.ai-provider-modal__input::placeholder,.ai-provider-modal__select::placeholder{color:#999}.ai-provider-modal__select{cursor:pointer}.ai-provider-modal__hint{margin-top:4px;font-size:12px;color:#666}.ai-provider-modal__hint code{padding:2px 4px;background:#f5f5f5;border-radius:4px;font-family:SF Mono,Monaco,Consolas,monospace;word-break:break-all}.ai-provider-modal__models-input{display:flex;gap:4px}.ai-provider-modal__models-input .ai-provider-modal__input{flex:1}.ai-provider-modal__models-list{display:flex;flex-wrap:wrap;gap:4px;margin-top:8px;max-height:120px;overflow-y:auto}.ai-provider-modal__model-tag{display:inline-flex;align-items:center;gap:4px;padding:4px 8px;background:#f5f5f5;border-radius:9999px;font-size:12px;color:#333}.ai-provider-modal__model-remove{display:flex;align-items:center;justify-content:center;width:16px;height:16px;padding:0;background:transparent;border:none;border-radius:50%;color:#999;cursor:pointer;transition:all .15s ease}.ai-provider-modal__model-remove:hover{background:#0000001a;color:#ff4d4f}.ai-provider-modal__btn{padding:4px 16px;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:all .15s ease;border:none}.ai-provider-modal__btn:disabled{opacity:.5;cursor:not-allowed}.ai-provider-modal__btn--add{padding:4px 8px;background:#f5a623;color:#fff;font-size:16px;font-weight:600}.ai-provider-modal__btn--add:hover:not(:disabled){background:#e5930a}.ai-provider-modal__btn--fetch{background:#f5f5f5;color:#333;white-space:nowrap}.ai-provider-modal__btn--fetch:hover:not(:disabled){background:#e8e8e8}.ai-provider-modal__btn--cancel{background:transparent;color:#666;border:1px solid #E8E8E8}.ai-provider-modal__btn--cancel:hover:not(:disabled){background:#f5f5f5}.ai-provider-modal__btn--save{background:#f5a623;color:#fff}.ai-provider-modal__btn--save:hover:not(:disabled){background:#e5930a}.ai-provider-modal__footer{display:flex;justify-content:flex-end;gap:8px;margin-top:24px;padding-top:16px;border-top:1px solid #F0F0F0}pre code.hljs{display:block;overflow-x:auto;padding:1em}code.hljs{padding:3px 5px}.hljs{color:#24292e;background:#fff}.hljs-doctag,.hljs-keyword,.hljs-meta .hljs-keyword,.hljs-template-tag,.hljs-template-variable,.hljs-type,.hljs-variable.language_{color:#d73a49}.hljs-title,.hljs-title.class_,.hljs-title.class_.inherited__,.hljs-title.function_{color:#6f42c1}.hljs-attr,.hljs-attribute,.hljs-literal,.hljs-meta,.hljs-number,.hljs-operator,.hljs-variable,.hljs-selector-attr,.hljs-selector-class,.hljs-selector-id{color:#005cc5}.hljs-regexp,.hljs-string,.hljs-meta .hljs-string{color:#032f62}.hljs-built_in,.hljs-symbol{color:#e36209}.hljs-comment,.hljs-code,.hljs-formula{color:#6a737d}.hljs-name,.hljs-quote,.hljs-selector-tag,.hljs-selector-pseudo{color:#22863a}.hljs-subst{color:#24292e}.hljs-section{color:#005cc5;font-weight:700}.hljs-bullet{color:#735c0f}.hljs-emphasis{color:#24292e;font-style:italic}.hljs-strong{color:#24292e;font-weight:700}.hljs-addition{color:#22863a;background-color:#f0fff4}.hljs-deletion{color:#b31d28;background-color:#ffeef0}@font-face{font-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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:"0.16.27"}.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}.markdown-renderer{line-height:1.8;color:#333;font-size:16px}.markdown-renderer h1{font-size:24px;font-weight:700;margin:24px 0 16px;padding-bottom:8px;border-bottom:1px solid #F0F0F0}.markdown-renderer h2{font-size:20px;font-weight:600;margin:24px 0 8px}.markdown-renderer h3{font-size:18px;font-weight:600;margin:16px 0 8px}.markdown-renderer h4,.markdown-renderer h5,.markdown-renderer h6{font-size:16px;font-weight:600;margin:8px 0}.markdown-renderer p{margin:8px 0}.markdown-renderer strong{font-weight:700}.markdown-renderer em{font-style:italic}.markdown-renderer code:not(pre code){background-color:#0000000d;padding:2px 6px;border-radius:4px;font-family:SF Mono,Monaco,Consolas,monospace;font-size:.9em;color:#d63384}.markdown-renderer pre{background-color:#f6f8fa;border-radius:8px;padding:16px;overflow-x:auto;margin:16px 0}.markdown-renderer pre code{font-family:SF Mono,Monaco,Consolas,monospace;font-size:14px;line-height:1.6;color:#333}.markdown-renderer ul{list-style-type:disc;padding-left:32px;margin:8px 0}.markdown-renderer ul li{margin:4px 0}.markdown-renderer ul ul{list-style-type:circle}.markdown-renderer ol{list-style-type:decimal;padding-left:32px;margin:8px 0}.markdown-renderer ol li{margin:4px 0}.markdown-renderer blockquote{border-left:4px solid #F5A623;margin:16px 0;color:#999;background-color:#00000005;padding:8px 16px;border-radius:0 4px 4px 0}.markdown-renderer hr{border:none;border-top:1px solid #F0F0F0;margin:24px 0}.markdown-renderer a{color:#f5a623;text-decoration:none}.markdown-renderer a:hover{text-decoration:underline}.markdown-renderer table{width:100%;border-collapse:collapse;margin:16px 0}.markdown-renderer table th,.markdown-renderer table td{border:1px solid #F0F0F0;padding:8px 16px;text-align:left}.markdown-renderer table th{background-color:#f6f8fa;font-weight:600}.markdown-renderer table tr:nth-child(2n){background-color:#00000005}.markdown-renderer input[type=checkbox]{margin-right:4px}.markdown-renderer img{max-width:100%;border-radius:8px;margin:16px 0}.markdown-renderer .mermaid-diagram{display:flex;justify-content:center;margin:16px 0;padding:16px;background-color:#fafafa;border-radius:8px;overflow-x:auto}.markdown-renderer .mermaid-diagram svg{max-width:100%;height:auto}.markdown-renderer .mermaid-error{margin:16px 0;padding:16px;background-color:#fff2f0;border:1px solid #ffccc7;border-radius:8px;color:#ff4d4f}.markdown-renderer .mermaid-error span{display:block;margin-bottom:8px;font-weight:600}.markdown-renderer .mermaid-error pre{background-color:#00000005;color:#999;font-size:14px}.table-of-contents{position:sticky;top:24px;max-height:calc(100vh - 120px);overflow-y:auto;padding:16px;background-color:#fafafa;border-radius:8px;border:1px solid #F0F0F0}.table-of-contents__title{font-size:14px;font-weight:600;color:#999;text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px;padding-bottom:4px;border-bottom:1px solid #F0F0F0}.table-of-contents__list{list-style:none;padding:0;margin:0}.table-of-contents__item{margin:2px 0}.table-of-contents__item--level-1{padding-left:0}.table-of-contents__item--level-2{padding-left:16px}.table-of-contents__item--level-3{padding-left:32px}.table-of-contents__link{display:block;width:100%;text-align:left;padding:4px 8px;border:none;background:none;color:#333;font-size:14px;line-height:1.4;border-radius:4px;cursor:pointer;transition:all .2s ease;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.table-of-contents__link:hover{background-color:#0000000d;color:#f5a623}.table-of-contents::-webkit-scrollbar{width:4px}.table-of-contents::-webkit-scrollbar-track{background:transparent}.table-of-contents::-webkit-scrollbar-thumb{background-color:#f0f0f0;border-radius:2px}.sidebar-folders{flex:1;display:flex;flex-direction:column;overflow:hidden;min-height:0}.sidebar-folders__header{display:flex;align-items:center;justify-content:space-between;padding:16px;flex-shrink:0}.sidebar-folders__title{font-size:12px;color:#999;text-transform:uppercase;letter-spacing:.5px}.sidebar-folders__add-btn{width:20px;height:20px;border:none;background:transparent;color:#999;cursor:pointer;border-radius:4px;display:flex;align-items:center;justify-content:center;transition:all .15s ease}.sidebar-folders__add-btn:hover{background:#f5f5f5;color:#f5a623}.sidebar-folders__list{flex:1;overflow-y:auto;padding:0 8px}.sidebar-folders__item{display:flex;align-items:center;gap:8px;padding:8px 16px;border-radius:8px;cursor:pointer;transition:background .15s ease}.sidebar-folders__item:hover{background:#f5f5f5}.sidebar-folders__item:hover .sidebar-folders__more{opacity:1}.sidebar-folders__icon{font-size:16px;opacity:.7;flex-shrink:0}.sidebar-folders__name{flex:1;font-size:14px;color:#333;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sidebar-folders__more{opacity:0;border:none;background:transparent;color:#999;font-size:12px;cursor:pointer;padding:2px 4px;border-radius:4px;transition:all .15s ease;flex-shrink:0}.sidebar-folders__more:hover{background:#f0f0f0;color:#f5a623}.sidebar-footer{flex-shrink:0;padding:8px 0;border-top:1px solid #F0F0F0}.sidebar-footer__item{display:flex;align-items:center;gap:8px;padding:8px 16px;margin:0 8px;border-radius:8px;cursor:pointer;transition:background .15s ease;color:#666}.sidebar-footer__item:hover{background:#f5f5f5}.sidebar-footer__item.active{background:#fff3e0;color:#f5a623}.sidebar-footer__icon{width:20px;font-size:16px;text-align:center;flex-shrink:0}.sidebar-footer__text{flex:1;font-size:14px}.conversation-list{display:flex;flex-direction:column;height:100%;padding:8px}.conversation-list__header{margin-bottom:8px}.conversation-list__new-btn{display:flex;align-items:center;justify-content:center;gap:4px;width:100%;padding:8px 16px;border:1px dashed #E8E8E8;border-radius:8px;background:transparent;color:#333;font-size:14px;cursor:pointer;transition:all .15s ease}.conversation-list__new-btn:hover{border-color:#f5a623;color:#f5a623;background:#f5a6230d}.conversation-list__new-btn svg{flex-shrink:0}.conversation-list__search{margin-bottom:8px}.conversation-list__search-input{width:100%;padding:4px 8px;border:1px solid #E8E8E8;border-radius:8px;font-size:14px;background:#fff;transition:all .15s ease}.conversation-list__search-input:focus{outline:none;border-color:#f5a623;box-shadow:0 0 0 3px #f5a6231a}.conversation-list__search-input::placeholder{color:#999}.conversation-list__content{flex:1;overflow-y:auto}.conversation-list__loading,.conversation-list__empty{display:flex;align-items:center;justify-content:center;height:100px;color:#999;font-size:14px;text-align:center}.conversation-list__items{list-style:none;padding:0;margin:0}.conversation-list__item{display:flex;align-items:center;gap:4px;padding:8px;border-radius:8px;cursor:pointer;transition:all .15s ease}.conversation-list__item:hover{background:#f5f5f5}.conversation-list__item:hover .conversation-list__item-delete{opacity:1}.conversation-list__item--active{background:#f5a6231a}.conversation-list__item--active .conversation-list__item-title{color:#f5a623;font-weight:500}.conversation-list__item-content{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.conversation-list__item-title{font-size:14px;color:#333;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conversation-list__item-date{font-size:12px;color:#999}.conversation-list__item-delete{flex-shrink:0;padding:4px;border:none;background:transparent;color:#999;cursor:pointer;opacity:0;transition:all .15s ease;border-radius:4px}.conversation-list__item-delete:hover{color:#ff4d4f;background:#ff4d4f1a}.sidebar{min-width:180px;max-width:400px;height:100%;background:#fff;border-right:1px solid #F0F0F0;display:flex;flex-direction:column;position:relative;flex-shrink:0;overflow:hidden}.sidebar--resizing{-webkit-user-select:none;user-select:none}.sidebar__top{flex-shrink:0}.sidebar__resizer{position:absolute;top:0;right:0;width:4px;height:100%;cursor:col-resize;background:transparent;transition:background .15s ease}.sidebar__resizer:hover{background:#f5a623}.dashboard-layout{min-height:100vh;background:#fafafa}.dashboard-layout__header{height:56px;background:#fff;border-bottom:1px solid #F0F0F0;position:sticky;top:0;z-index:100}.dashboard-layout__header-content{display:flex;align-items:center;justify-content:space-between;height:100%;max-width:100%;padding:0 24px}.dashboard-layout__brand{display:flex;align-items:center;gap:8px;text-decoration:none}.dashboard-layout__logo-icon{font-size:28px}.dashboard-layout__logo-text{font-size:20px;font-weight:600;background:linear-gradient(135deg,#f5a623,#ff8c00);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.dashboard-layout__header-right{display:flex;align-items:center;gap:16px}.dashboard-layout__user-wrapper{position:relative}.dashboard-layout__user{display:flex;align-items:center;gap:8px;cursor:pointer;padding:4px 8px;border-radius:8px;transition:background .15s ease}.dashboard-layout__user:hover{background:#f5f5f5}.dashboard-layout__user-avatar{width:32px;height:32px;border-radius:50%;background:#fff3e0;color:#f5a623;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:500}.dashboard-layout__user-name{font-size:14px;color:#333}.dashboard-layout__user-arrow{font-size:10px;color:#999;margin-left:4px}.dashboard-layout__dropdown{position:absolute;top:100%;right:0;margin-top:4px;min-width:160px;background:#fff;border:1px solid #F0F0F0;border-radius:8px;box-shadow:0 4px 12px #0000001a;z-index:200;overflow:hidden}.dashboard-layout__dropdown-item{width:100%;padding:8px 16px;font-size:14px;color:#333;background:transparent;border:none;cursor:pointer;text-align:left;transition:background .15s ease}.dashboard-layout__dropdown-item:hover:not(:disabled){background:#f5f5f5}.dashboard-layout__dropdown-item:disabled{opacity:.6;cursor:not-allowed}.dashboard-layout__dropdown-item--danger{color:#ff4d4f}.dashboard-layout__dropdown-item--danger:hover:not(:disabled){background:#ff4d4f1a}.dashboard-layout__body{flex:1;display:flex;overflow:hidden;height:calc(100vh - 56px)}.dashboard-layout__content{flex:1;padding:24px;overflow-y:auto;overflow-x:hidden;background:#fafafa;height:100%}.settings-placeholder{text-align:center;padding:64px;color:#999}.settings-placeholder__icon{font-size:48px;display:block;margin-bottom:16px}.settings-placeholder h3{font-size:18px;font-weight:600;color:#333;margin-bottom:8px}.settings-placeholder p{font-size:16px}.admin-layout{min-height:100vh;background:#fafafa;display:flex;flex-direction:column}.admin-layout__header{height:56px;background:#fff;border-bottom:1px solid #F0F0F0;position:sticky;top:0;z-index:100}.admin-layout__header-content{display:flex;align-items:center;justify-content:space-between;height:100%;max-width:100%;padding:0 24px}.admin-layout__header-left{display:flex;align-items:center;gap:16px}.admin-layout__brand{display:flex;align-items:center;gap:8px;text-decoration:none}.admin-layout__logo-icon{font-size:28px}.admin-layout__logo-text{font-size:20px;font-weight:600;background:linear-gradient(135deg,#f5a623,#ff8c00);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.admin-layout__divider{color:#e8e8e8;font-weight:300}.admin-layout__title{font-size:16px;font-weight:500;color:#333}.admin-layout__header-right{display:flex;align-items:center;gap:16px}.admin-layout__back-btn{padding:4px 16px;font-size:14px;color:#666;background:transparent;border:1px solid #E8E8E8;border-radius:8px;cursor:pointer;transition:all .15s ease}.admin-layout__back-btn:hover{border-color:#f5a623;color:#f5a623}.admin-layout__user{display:flex;align-items:center;gap:8px}.admin-layout__user-avatar{width:32px;height:32px;border-radius:50%;background:#fff3e0;color:#f5a623;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:500}.admin-layout__user-name{font-size:14px;color:#333}.admin-layout__logout-btn{padding:4px 16px;font-size:14px;color:#ff4d4f;background:transparent;border:1px solid #ff4d4f;border-radius:8px;cursor:pointer;transition:all .15s ease}.admin-layout__logout-btn:hover:not(:disabled){background:#ff4d4f;color:#fff}.admin-layout__logout-btn:disabled{opacity:.6;cursor:not-allowed}.admin-layout__content{flex:1;padding:24px;overflow-y:auto}.home-page{min-height:100vh;display:flex;flex-direction:column}.hero{padding-top:120px;padding-bottom:80px;background:linear-gradient(180deg,#fff3e0,#fafafa)}.hero__content{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}@media(max-width:768px){.hero__content{grid-template-columns:1fr;text-align:center}}.hero__title{font-size:56px;font-weight:700;line-height:1.2;color:#333;margin-bottom:24px}@media(max-width:768px){.hero__title{font-size:40px}}.hero__subtitle{font-size:18px;color:#666;margin-bottom:32px;line-height:1.6}.hero__actions{display:flex;gap:16px}@media(max-width:768px){.hero__actions{justify-content:center}}.hero__illustration{position:relative;height:400px;display:flex;align-items:center;justify-content:center}@media(max-width:768px){.hero__illustration{display:none}}.illustration-card{position:absolute;background:#fff;padding:24px;border-radius:12px;box-shadow:0 8px 24px #0000001f;display:flex;flex-direction:column;align-items:center;gap:8px;transition:transform .3s ease}.illustration-card:hover{transform:translateY(-8px)}.illustration-card span{font-size:40px}.illustration-card p{font-weight:500;color:#333}.illustration-card--1{top:20%;left:10%;animation:float 3s ease-in-out infinite}.illustration-card--2{top:40%;right:15%;animation:float 3s ease-in-out infinite .5s}.illustration-card--3{bottom:15%;left:30%;animation:float 3s ease-in-out infinite 1s}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.features{padding:48px 0;background:#fff}.features__title{text-align:center;font-size:32px;font-weight:600;margin-bottom:48px;color:#333}.features__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}@media(max-width:992px){.features__grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:576px){.features__grid{grid-template-columns:1fr}}.feature-card{text-align:center;padding:32px;border-radius:12px;background:#f5f5f5;transition:all .3s ease}.feature-card:hover{background:#fff3e0;transform:translateY(-4px)}.feature-card__icon{font-size:48px;margin-bottom:16px}.feature-card h3{font-size:18px;margin-bottom:8px;color:#333}.feature-card p{font-size:14px;color:#666}.login-form,.register-form{display:flex;flex-direction:column;gap:16px}.register-success{text-align:center;padding:24px 0}.register-success__icon{font-size:64px;margin-bottom:16px}.register-success h2{font-size:24px;color:#52c41a;margin-bottom:8px}.register-success p{color:#666}.admin-page{max-width:1400px;margin:0 auto}.admin-page__header{margin-bottom:32px}.admin-page__title{font-size:28px;font-weight:600;color:#333;margin-bottom:4px}.admin-page__subtitle{font-size:16px;color:#999}.admin-page__toolbar{display:flex;gap:16px;margin-bottom:24px;flex-wrap:wrap}.admin-page__search{display:flex;flex:1;min-width:300px;gap:8px}.admin-page__search-input{flex:1;padding:8px 16px;border:1px solid #E8E8E8;border-radius:8px;font-size:16px}.admin-page__search-input:focus{outline:none;border-color:#f5a623}.admin-page__search-btn{padding:8px 24px;background:#f5a623;color:#fff;border:none;border-radius:8px;font-size:16px;cursor:pointer;transition:background .15s ease;white-space:nowrap}.admin-page__search-btn:hover{background:#db8c0a}.admin-page__filter{padding:8px 16px;border:1px solid #E8E8E8;border-radius:8px;font-size:16px;background:#fff;cursor:pointer;min-width:120px}.admin-page__filter:focus{outline:none;border-color:#f5a623}.admin-page__content{background:#fff;border-radius:12px;border:1px solid #F0F0F0;overflow:hidden}.admin-page__loading,.admin-page__empty{padding:64px;text-align:center;color:#999}.admin-page__loading span,.admin-page__empty span{font-size:48px;display:block;margin-bottom:16px}.admin-page__table{width:100%;border-collapse:collapse}.admin-page__table th,.admin-page__table td{padding:16px;text-align:left;border-bottom:1px solid #F0F0F0}.admin-page__table th{background:#f5f5f5;font-weight:600;font-size:14px;color:#666}.admin-page__table td{font-size:14px;color:#333}.admin-page__table tr:hover td{background:#fafafa}.admin-page__badge{display:inline-block;padding:2px 8px;border-radius:4px;font-size:12px;font-weight:500}.admin-page__badge--admin{background:#f5a62326;color:#f5a623}.admin-page__badge--user{background:#6666661a;color:#666}.admin-page__badge--active{background:#52c41a26;color:#52c41a}.admin-page__badge--inactive{background:#faad1426;color:#faad14}.admin-page__badge--banned{background:#ff4d4f26;color:#ff4d4f}.admin-page__actions{display:flex;gap:4px}.admin-page__action-btn{padding:4px 12px;border-radius:4px;font-size:12px;cursor:pointer;border:none;transition:all .15s ease}.admin-page__action-btn--edit{background:#f5a6231a;color:#f5a623}.admin-page__action-btn--edit:hover{background:#f5a623;color:#fff}.admin-page__action-btn--delete{background:#ff4d4f1a;color:#ff4d4f}.admin-page__action-btn--delete:hover{background:#ff4d4f;color:#fff}.admin-page__pagination{display:flex;justify-content:center;align-items:center;gap:16px;padding:24px;border-top:1px solid #F0F0F0}.admin-page__pagination button{padding:4px 16px;border:1px solid #E8E8E8;border-radius:8px;background:#fff;cursor:pointer;font-size:14px;transition:all .15s ease}.admin-page__pagination button:hover:not(:disabled){border-color:#f5a623;color:#f5a623}.admin-page__pagination button:disabled{opacity:.5;cursor:not-allowed}.admin-page__pagination span{font-size:14px;color:#999}.admin-page__modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.admin-page__modal{background:#fff;border-radius:12px;width:100%;max-width:480px;box-shadow:0 8px 24px #00000026}.admin-page__modal-header{display:flex;justify-content:space-between;align-items:center;padding:24px;border-bottom:1px solid #F0F0F0}.admin-page__modal-header h3{font-size:18px;font-weight:600;color:#333;margin:0}.admin-page__modal-close{width:32px;height:32px;border:none;background:transparent;font-size:24px;color:#999;cursor:pointer;border-radius:4px;transition:all .15s ease}.admin-page__modal-close:hover{background:#f5f5f5;color:#333}.admin-page__modal-body{padding:24px}.admin-page__form-group{margin-bottom:16px}.admin-page__form-group label{display:block;font-size:14px;font-weight:500;color:#333;margin-bottom:4px}.admin-page__form-group input,.admin-page__form-group select{width:100%;padding:8px 16px;border:1px solid #E8E8E8;border-radius:8px;font-size:16px}.admin-page__form-group input:focus,.admin-page__form-group select:focus{outline:none;border-color:#f5a623}.admin-page__modal-footer{display:flex;justify-content:flex-end;gap:8px;padding:24px;border-top:1px solid #F0F0F0}.start-page{max-width:100%}.start-page__actions{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:32px}@media(max-width:900px){.start-page__actions{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.start-page__actions{grid-template-columns:1fr}}.start-page__documents{margin-top:32px}.start-page__section-title{font-size:18px;font-weight:600;color:#333;margin-bottom:16px}.start-page__doc-list{display:flex;flex-direction:column;gap:2px;margin-top:24px}.start-page__loading,.start-page__empty{padding:48px;text-align:center;color:#999;font-size:14px}.favorites-page__content{margin-top:24px}.favorites-page__list{display:flex;flex-direction:column;gap:2px}.favorites-page__loading{padding:48px;text-align:center;color:#999;font-size:14px}.trash-page__content{margin-top:24px}.trash-page__list{display:flex;flex-direction:column;gap:2px}.trash-page__loading{padding:48px;text-align:center;color:#999;font-size:14px}.trash-page__confirm{padding:16px 0}.trash-page__confirm-warning{font-size:14px;color:#333;margin-bottom:8px;line-height:1.6}.trash-page__confirm-warning strong{color:#ff4d4f}.trash-page__confirm-tip{font-size:12px;color:#999;margin-bottom:24px}.trash-page__confirm-actions{display:flex;justify-content:flex-end;gap:8px}.btn-danger{background:#ff4d4f;color:#fff;border:none;padding:8px 16px;border-radius:8px;font-size:14px;cursor:pointer;transition:background .15s ease}.btn-danger:hover{background:#ff1a1d}.template-card{display:flex;align-items:flex-start;gap:16px;padding:24px;background:#fff;border:1px solid #E8E8E8;border-radius:12px;cursor:pointer;transition:all .15s ease;position:relative}.template-card:hover{border-color:#f5a623;box-shadow:0 4px 12px #00000014;transform:translateY(-2px)}.template-card--system{background:linear-gradient(135deg,#fff,#fff3e0)}.template-card--user{background:#fff}.template-card__icon{font-size:32px;flex-shrink:0;width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:#f5f5f5;border-radius:8px}.template-card__info{flex:1;min-width:0}.template-card__name{font-size:16px;font-weight:600;color:#333;margin:0 0 4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.template-card__description{font-size:14px;color:#666;margin:0;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.template-card__badge{position:absolute;top:8px;right:8px;font-size:12px;color:#f5a623;background:#fff3e0;padding:2px 8px;border-radius:9999px}.template-preview-modal{display:flex;flex-direction:column;gap:24px}.template-preview-modal__preview-title{font-size:14px;color:#666;margin:0 0 8px}.template-preview-modal__content{max-height:300px;overflow-y:auto;padding:16px;background:#f5f5f5;border-radius:8px;font-size:14px}.template-preview-modal__content::-webkit-scrollbar{width:6px}.template-preview-modal__content::-webkit-scrollbar-track{background:transparent}.template-preview-modal__content::-webkit-scrollbar-thumb{background:#e8e8e8;border-radius:3px}.template-preview-modal__form{display:flex;flex-direction:column;gap:16px}.template-preview-modal__field{display:flex;flex-direction:column;gap:4px}.template-preview-modal__field label{font-size:14px;color:#666}.template-preview-modal__field input,.template-preview-modal__field select{padding:8px 16px;border:1px solid #E8E8E8;border-radius:8px;font-size:16px;transition:border-color .15s ease}.template-preview-modal__field input:focus,.template-preview-modal__field select:focus{outline:none;border-color:#f5a623}.template-preview-modal__error{font-size:14px;color:#ff4d4f;margin:0}.template-preview-modal__actions{display:flex;justify-content:flex-end;gap:8px;padding-top:8px;border-top:1px solid #F0F0F0}.template-preview-modal__btn{padding:8px 24px;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:all .15s ease}.template-preview-modal__btn--secondary{background:#fff;border:1px solid #E8E8E8;color:#666}.template-preview-modal__btn--secondary:hover{border-color:#666}.template-preview-modal__btn--primary{background:#f5a623;border:none;color:#fff}.template-preview-modal__btn--primary:hover:not(:disabled){background:#e09000}.template-preview-modal__btn--primary:disabled{opacity:.5;cursor:not-allowed}.templates-page__content{margin-top:24px}.templates-page__loading{display:flex;justify-content:center;align-items:center;padding:48px;color:#666}.templates-page__section{margin-bottom:32px}.templates-page__section-title{font-size:18px;font-weight:600;color:#333;margin:0 0 16px}.templates-page__grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.settings-page__content{margin-top:24px;max-width:600px}.settings-page__section{margin-bottom:32px}.settings-page__section-title{font-size:16px;font-weight:600;color:#333;margin-bottom:16px;padding-bottom:8px;border-bottom:1px solid #F0F0F0}.settings-page__item{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid #F0F0F0}.settings-page__label{font-size:14px;color:#666}.settings-page__value{font-size:14px;color:#333}.doc-selector-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.doc-selector{width:700px;max-width:90vw;max-height:80vh;background:#fff;border-radius:12px;box-shadow:0 8px 24px #0000001f;display:flex;flex-direction:column;overflow:hidden}.doc-selector__header{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;border-bottom:1px solid #E8E8E8}.doc-selector__header h3{margin:0;font-size:18px;font-weight:600}.doc-selector__close{padding:4px;border:none;background:transparent;cursor:pointer;color:#999;border-radius:4px;transition:all .2s}.doc-selector__close:hover{background:#f5f5f5;color:#333}.doc-selector__content{display:flex;flex:1;overflow:hidden}.doc-selector__folders{width:200px;border-right:1px solid #E8E8E8;padding:8px;overflow-y:auto}.doc-selector__folders h4{margin:0 0 8px;padding:4px 8px;font-size:14px;color:#999;font-weight:500}.doc-selector__folders ul{list-style:none;padding:0;margin:0}.doc-selector__folders li{padding:8px 16px;cursor:pointer;border-radius:8px;font-size:14px;transition:background .2s;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.doc-selector__folders li:hover{background:#f5f5f5}.doc-selector__folders li.active{background:#fff3e0;color:#f5a623;font-weight:500}.doc-selector__documents{flex:1;padding:8px;overflow-y:auto}.doc-selector__documents h4{margin:0 0 8px;padding:4px 8px;font-size:14px;color:#999;font-weight:500}.doc-selector__documents ul{list-style:none;padding:0;margin:0}.doc-selector__documents li{display:flex;align-items:center;gap:8px;padding:8px 16px;cursor:pointer;border-radius:8px;font-size:14px;transition:background .2s}.doc-selector__documents li:hover{background:#f5f5f5}.doc-selector__documents li.selected{background:#fff3e0}.doc-selector__documents li input[type=checkbox]{width:16px;height:16px;accent-color:#F5A623}.doc-selector__documents li span{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.doc-selector__loading,.doc-selector__empty{padding:32px;text-align:center;color:#999;font-size:14px}.doc-selector__footer{display:flex;justify-content:flex-end;gap:8px;padding:16px 24px;border-top:1px solid #E8E8E8}.doc-selector__btn--cancel,.doc-selector__btn--confirm{padding:8px 24px;border-radius:8px;font-size:14px;cursor:pointer;transition:all .2s}.doc-selector__btn--cancel{border:1px solid #E8E8E8;background:#fff;color:#333}.doc-selector__btn--cancel:hover{background:#f5f5f5}.doc-selector__btn--confirm{border:none;background:#f5a623;color:#fff}.doc-selector__btn--confirm:hover{background:#e09000}.chat-page{display:flex;flex-direction:column;height:100%;background:linear-gradient(180deg,#fafafa,#f5f5f5)}.chat-page__header{display:flex;justify-content:center;padding:16px;background:transparent}.chat-page__title-btn{display:flex;align-items:center;gap:4px;padding:4px 16px;border:none;background:transparent;font-size:16px;font-weight:500;color:#333;cursor:pointer;border-radius:9999px;transition:background .2s}.chat-page__title-btn:hover{background:#0000000d}.chat-page__title-btn svg{opacity:.6}.chat-page__title-input{padding:4px 16px;border:2px solid #F5A623;border-radius:9999px;font-size:16px;font-weight:500;text-align:center;outline:none;min-width:200px}.chat-page__loading{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:16px;color:#999}.chat-page__loading-spinner{width:32px;height:32px;border:3px solid #E8E8E8;border-top-color:#f5a623;border-radius:50%;animation:spin 1s linear infinite}.chat-page__messages{flex:1;overflow-y:auto;padding:24px 32px}.chat-page__welcome{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;text-align:center;padding-bottom:100px}.chat-page__welcome-title{font-size:36px;font-weight:600;margin:0 0 16px}.chat-page__welcome-gradient{background:linear-gradient(135deg,#4285f4,#ea4335,#fbbc04,#34a853);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.chat-page__welcome-subtitle{font-size:16px;color:#999;margin:0}.chat-page__messages-list{max-width:800px;margin:0 auto}.chat-page__footer{padding:16px 32px 24px;display:flex;flex-direction:column;align-items:center}.chat-page__disclaimer{margin:8px 0 0;font-size:12px;color:#999}.chat-input{width:100%;max-width:800px;background:#fff;border:1px solid #E8E8E8;border-radius:28px;box-shadow:0 4px 12px #00000014;overflow:hidden;transition:box-shadow .2s,border-color .2s}.chat-input:focus-within{border-color:#f5a623;box-shadow:0 4px 20px #0000001f}.chat-input__textarea{width:100%;padding:16px 24px;border:none;outline:none;font-size:16px;font-family:inherit;resize:none;min-height:24px;max-height:200px;line-height:1.5;background:transparent}.chat-input__textarea::placeholder{color:#999}.chat-input__docs{display:flex;flex-wrap:wrap;gap:4px;padding:0 16px 8px}.chat-input__doc-tag{display:inline-flex;align-items:center;gap:4px;padding:2px 8px;background:#fff3e0;border-radius:9999px;font-size:12px;color:#f5a623}.chat-input__doc-tag button{display:flex;align-items:center;justify-content:center;width:14px;height:14px;padding:0;border:none;background:transparent;color:inherit;cursor:pointer;border-radius:50%;font-size:12px;line-height:1}.chat-input__doc-tag button:hover{background:#0000001a}.chat-input__toolbar{display:flex;align-items:center;justify-content:space-between;padding:4px 16px 8px}.chat-input__toolbar-left,.chat-input__toolbar-right{display:flex;align-items:center;gap:4px}.chat-input__btn{display:flex;align-items:center;gap:4px;padding:4px 8px;border:none;background:transparent;color:#666;cursor:pointer;border-radius:9999px;font-size:14px;transition:background .2s,color .2s}.chat-input__btn:hover{background:#f5f5f5;color:#333}.chat-input__btn svg{flex-shrink:0}.chat-input__model-select{padding:4px 24px 4px 16px;border:1px solid transparent;border-radius:9999px;background:transparent;font-size:14px;color:#333;cursor:pointer;transition:background .2s;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 8px center}.chat-input__model-select:hover{background-color:#f5f5f5}.chat-input__model-select:focus{outline:none;border-color:#f5a623}.chat-input__send{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border:none;border-radius:50%;background:#f5f5f5;color:#999;cursor:not-allowed;transition:all .2s}.chat-input__send--active{background:#f5a623;color:#fff;cursor:pointer}.chat-input__send--active:hover{background:#e09000}.chat-input__send-loading{width:20px;height:20px;border:2px solid transparent;border-top-color:currentColor;border-radius:50%;animation:spin .8s linear infinite}.chat-message{display:flex;gap:16px;margin-bottom:24px}.chat-message--user{justify-content:flex-end}.chat-message--user .chat-message__content{background:#e8f0fe;border-radius:20px 20px 4px;max-width:70%}.chat-message--assistant .chat-message__content{background:#fff;border-radius:4px 20px 20px;box-shadow:0 1px 2px #0000000d;max-width:85%}.chat-message__avatar{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#4285f4,#34a853);border-radius:50%;color:#fff;flex-shrink:0}.chat-message__content{padding:16px 24px}.chat-message__text{font-size:16px;line-height:1.7;color:#333;white-space:pre-wrap;word-break:break-word}.chat-message__actions{display:flex;gap:4px;margin-top:8px;padding-top:8px;border-top:1px solid #F0F0F0}.chat-message__actions button{padding:4px;border:none;background:transparent;color:#999;cursor:pointer;border-radius:4px;transition:all .2s}.chat-message__actions button:hover{background:#f5f5f5;color:#333}@keyframes spin{to{transform:rotate(360deg)}}.kb-loading,.kb-error{display:flex;align-items:center;justify-content:center;height:100vh;color:#999;font-size:18px}.knowledge-base{display:flex;height:100vh;background:#f5f5f5}.kb-breadcrumb{display:flex;align-items:center;gap:4px;padding:8px 16px;font-size:12px;color:#f5a623;cursor:pointer}.kb-breadcrumb:hover{text-decoration:underline}.kb-breadcrumb__icon{font-size:14px}.kb-breadcrumb__arrow{color:#999}.kb-breadcrumb__text{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.kb-header{display:flex;align-items:center;gap:8px;padding:8px 16px}.kb-header__icon{font-size:20px}.kb-header__title{flex:1;font-size:16px;font-weight:600;color:#333;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.kb-header__more{padding:4px;background:transparent;border:none;color:#999;cursor:pointer;border-radius:4px}.kb-header__more:hover{background:#f5f5f5}.kb-search{display:flex;align-items:center;gap:8px;padding:8px 16px}.kb-search__input-wrapper{flex:1;display:flex;align-items:center;gap:4px;padding:4px 8px;background:#f5f5f5;border-radius:8px}.kb-search__icon{font-size:14px;color:#999}.kb-search__input{flex:1;width:100%;border:none;background:transparent;font-size:14px;outline:none}.kb-search__input::placeholder{color:#999}.kb-search__shortcut{font-size:12px;color:#999;background:#fff;padding:2px 4px;border-radius:4px;border:1px solid #F0F0F0}.kb-search__add{width:28px;height:28px;display:flex;align-items:center;justify-content:center;background:transparent;border:1px solid #E8E8E8;border-radius:8px;font-size:18px;color:#666;cursor:pointer;transition:all .15s ease}.kb-search__add:hover{background:#f5a623;border-color:#f5a623;color:#fff}.kb-nav-item{display:flex;align-items:center;gap:8px;padding:8px 16px;font-size:14px;color:#666;cursor:pointer;transition:all .15s ease}.kb-nav-item:hover{background:#f5f5f5}.kb-nav-item.active{background:#fff3e0;color:#f5a623}.kb-nav-item__icon{font-size:16px}.kb-directory{flex:1;overflow-y:auto}.kb-directory__header{display:flex;align-items:center;gap:8px;padding:8px 16px;font-size:14px;color:#666}.kb-directory__icon{font-size:14px}.kb-directory__title{flex:1}.kb-directory__toggle{padding:4px;background:transparent;border:none;color:#999;cursor:pointer;border-radius:4px}.kb-directory__toggle:hover{background:#f5f5f5}.kb-directory__list{padding-left:16px}.kb-directory__item{padding:4px 16px;font-size:14px;color:#666;cursor:pointer;border-left:2px solid transparent;transition:all .15s ease;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.kb-directory__item:hover{background:#f5f5f5;color:#333}.kb-directory__item.active{border-left-color:#f5a623;background:#fff3e0;color:#f5a623}.kb-content{flex:1;overflow-y:auto;background:#fff}.kb-welcome{max-width:100%;margin:0 auto;padding:32px}.kb-welcome__header{display:flex;align-items:center;justify-content:space-between;padding-bottom:24px;border-bottom:1px solid #F0F0F0}.kb-welcome__title-row{display:flex;align-items:center;gap:16px}.kb-welcome__icon{font-size:32px}.kb-welcome__title{font-size:24px;font-weight:600;color:#333}.kb-welcome__stats{display:flex;gap:24px;margin-top:8px;font-size:14px;color:#999}.kb-welcome__actions{display:flex;gap:8px}.kb-welcome__actions .btn{padding:8px 16px;font-size:14px}.kb-welcome__intro{display:flex;align-items:flex-start;gap:16px;margin:32px 0;padding:24px;background:#fff3e0;border-radius:8px}.kb-welcome__intro-icon{font-size:24px}.kb-welcome__intro-text h3{font-size:16px;font-weight:600;color:#333;margin-bottom:4px}.kb-welcome__intro-text p{font-size:14px;color:#f5a623}.kb-welcome__docs{margin-top:24px}.kb-welcome__doc-item{display:flex;align-items:center;justify-content:space-between;padding:16px 0;border-bottom:1px solid #F0F0F0;cursor:pointer;transition:background .15s ease}.kb-welcome__doc-item:hover{background:#f5f5f5;margin:0 -16px;padding:16px}.kb-welcome__doc-title{font-size:14px;color:#333}.kb-welcome__doc-date{font-size:12px;color:#999}.doc-loading,.doc-error{display:flex;align-items:center;justify-content:center;height:100%;color:#999;font-size:18px}.document-view{height:100%;display:flex;flex-direction:column}.document-view__header{display:flex;align-items:center;justify-content:space-between;padding:24px 32px;border-bottom:1px solid #F0F0F0;flex-shrink:0}.document-view__title{font-size:24px;font-weight:700;color:#333}.document-view__title-input{font-size:24px;font-weight:700;color:#333;border:none;border-bottom:2px solid #F5A623;background:transparent;padding:4px 0;flex:1;min-width:200px}.document-view__title-input:focus{outline:none}.document-view__title-input::placeholder{color:#999}.document-view__actions{display:flex;align-items:center;gap:8px}.document-view__actions .favorite-btn{background:none;border:none;cursor:pointer;font-size:20px;color:#999;padding:4px;border-radius:4px;transition:all .2s ease}.document-view__actions .favorite-btn:hover{color:#faad14;background-color:#faad141a;transform:scale(1.1)}.document-view__actions .favorite-btn--active{color:#faad14}.document-view__actions .save-status{font-size:14px;padding:4px 8px;border-radius:4px}.document-view__actions .save-status--saving{color:#f5a623}.document-view__actions .save-status--saved{color:#52c41a}.document-view__actions .save-status--error{color:#ff4d4f}.document-view__main{flex:1;display:flex;gap:32px;overflow:hidden}.document-view__content{flex:1;overflow-y:auto;padding:32px;min-width:0}.document-view__toc{width:220px;flex-shrink:0;padding:24px 24px 24px 0;overflow-y:auto}@media(max-width:1100px){.document-view__toc{display:none}}.document-view__editor{width:100%;height:100%;min-height:500px;padding:24px;border:1px solid #F0F0F0;border-radius:8px;font-family:SF Mono,Monaco,Consolas,monospace;font-size:14px;line-height:1.8;resize:none}.document-view__editor:focus{outline:none;border-color:#f5a623}.document-view__body{max-width:100%;margin:0 auto;line-height:1.8}.doc-h1{font-size:24px;font-weight:700;color:#333;margin:24px 0 16px;padding-bottom:8px;border-bottom:1px solid #F0F0F0}.doc-h2{font-size:20px;font-weight:600;color:#333;margin:24px 0 8px}.doc-h3{font-size:18px;font-weight:600;color:#333;margin:16px 0 8px}.doc-paragraph{font-size:16px;color:#333;margin:8px 0}.doc-list-item{font-size:16px;color:#333;margin:4px 0;padding-left:16px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:16px;color:#333;background-color:#fafafa;line-height:1.6;min-height:100vh}a{color:#f5a623;text-decoration:none;transition:color .15s ease}a:hover{color:#e09000}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 24px;font-size:16px;font-weight:500;border:none;border-radius:8px;cursor:pointer;transition:all .15s ease;outline:none}.btn:disabled{opacity:.7;cursor:not-allowed}.btn-primary{background:#f5a623;color:#fff}.btn-primary:hover:not(:disabled){background:#e09000;transform:translateY(-1px);box-shadow:0 4px 12px #00000014}.btn-outline{background:transparent;color:#333;border:1px solid #E8E8E8}.btn-outline:hover:not(:disabled){border-color:#f5a623;color:#f5a623}.btn-block{width:100%}.btn-large{padding:14px 32px;font-size:18px}.btn-danger{background:#ff4d4f;color:#fff;border-color:#ff4d4f}.btn-danger:hover:not(:disabled){background:#ff7875;border-color:#ff7875}.input{width:100%;padding:12px 16px;font-size:16px;border:1px solid #E8E8E8;border-radius:8px;background:#fff;transition:all .15s ease;outline:none}.input:focus{border-color:#f5a623;box-shadow:0 0 0 3px #fff3e0}.input::placeholder{color:#999}.card{background:#fff;border-radius:12px;box-shadow:0 4px 12px #00000014;padding:32px}.container{max-width:1200px;margin:0 auto;padding:0 24px}.form-group{display:flex;flex-direction:column;gap:4px}.form-group label{font-size:14px;font-weight:500;color:#333}.error-message{padding:8px 16px;background:#fff2f0;border:1px solid #FFCCC7;border-radius:8px;color:#ff4d4f;font-size:14px}.link{color:#f5a623;font-weight:500;margin-left:4px}.link:hover{text-decoration:underline}