:root{--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;--font-mono: "SF Mono", "JetBrains Mono", "Cascadia Code", Consolas, "Courier New", monospace;--font-serif: "Songti SC", "STSong", "SimSun", Georgia, "Times New Roman", serif;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 22px;--ease: cubic-bezier(.22, 1, .36, 1);--speed: .18s;--accent: #6366f1;--accent-strong: #4f46e5;--accent-soft: rgba(99, 102, 241, .12);--selection-bg: rgba(99, 102, 241, .35)}:root[data-theme=light]{--bg: #f7f7f9;--bg-elevated: #ffffff;--bg-hover: #f0f0f4;--bg-active: #e8e8ee;--surface: #ffffff;--surface-2: #fbfbfc;--border: #e6e6ec;--border-strong: #d4d4de;--text: #1a1a1f;--text-2: #5b5b66;--text-3: #92929e;--shadow-sm: 0 1px 2px rgba(20, 20, 40, .05);--shadow-md: 0 4px 16px rgba(20, 20, 40, .08);--shadow-lg: 0 16px 48px rgba(20, 20, 40, .14);--editor-bg: #ffffff;--toolbar-bg: rgba(255, 255, 255, .86);--overlay: rgba(20, 20, 40, .4);--code-bg: #f4f4f8;color-scheme:light}:root[data-theme=dark]{--bg: #101014;--bg-elevated: #17171c;--bg-hover: #1f1f26;--bg-active: #27272f;--surface: #1a1a21;--surface-2: #202027;--border: #2a2a33;--border-strong: #3a3a45;--text: #e8e8ee;--text-2: #a8a8b5;--text-3: #6b6b78;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow-md: 0 4px 16px rgba(0, 0, 0, .45);--shadow-lg: 0 16px 48px rgba(0, 0, 0, .6);--editor-bg: #1a1a21;--toolbar-bg: rgba(24, 24, 30, .86);--overlay: rgba(0, 0, 0, .55);--code-bg: #121218;--selection-bg: rgba(129, 140, 248, .6);color-scheme:dark}:root[data-theme=sepia]{--bg: #ece3d5;--bg-elevated: #f4ecdf;--bg-hover: #e6dccb;--bg-active: #ddd2bf;--surface: #f8f1e6;--surface-2: #f3ecdf;--border: #ddd2c0;--border-strong: #c9bda8;--text: #3f3a30;--text-2: #6f6757;--text-3: #9c9382;--shadow-sm: 0 1px 2px rgba(90, 70, 40, .06);--shadow-md: 0 4px 16px rgba(90, 70, 40, .1);--shadow-lg: 0 16px 48px rgba(90, 70, 40, .18);--editor-bg: #f8f1e6;--toolbar-bg: rgba(244, 236, 223, .9);--overlay: rgba(60, 48, 30, .35);--code-bg: #efe6d6;color-scheme:light}*,*:before,*:after{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:var(--font-sans);font-size:15px;line-height:1.6;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;transition:background var(--speed) var(--ease),color var(--speed) var(--ease)}a{color:var(--accent);text-decoration:none}button{font-family:inherit;cursor:pointer}input,textarea{font-family:inherit}::selection{background:var(--selection-bg)}*:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:8px;border:2px solid transparent;background-clip:content-box}::-webkit-scrollbar-thumb:hover{background:var(--text-3);background-clip:content-box}::-webkit-scrollbar-track{background:transparent}.flex{display:flex}.flex-col{display:flex;flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-1{gap:4px}.gap-2{gap:8px}.gap-3{gap:12px}.flex-1{flex:1}.min-w-0{min-width:0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:9px 16px;border:1px solid transparent;border-radius:var(--radius-md);font-size:14px;font-weight:500;line-height:1;color:var(--text);background:var(--bg-elevated);transition:all var(--speed) var(--ease);white-space:nowrap;-webkit-user-select:none;user-select:none}.btn:hover{background:var(--bg-hover)}.btn:active{transform:scale(.97)}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-strong)}.btn-ghost{background:transparent}.btn-ghost:hover{background:var(--bg-hover)}.btn-outline{border-color:var(--border);background:var(--bg-elevated)}.btn-outline:hover{border-color:var(--border-strong)}.btn-sm{padding:6px 12px;font-size:13px;border-radius:var(--radius-sm)}.btn-icon{padding:8px;border-radius:var(--radius-sm)}.btn:disabled{opacity:.45;cursor:not-allowed}.input{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-elevated);color:var(--text);font-size:14px;transition:border-color var(--speed) var(--ease),box-shadow var(--speed) var(--ease)}.input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.input::placeholder{color:var(--text-3)}.label{display:block;font-size:13px;font-weight:500;color:var(--text-2);margin-bottom:6px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:box-shadow var(--speed) var(--ease),transform var(--speed) var(--ease),border-color var(--speed) var(--ease)}.card-hover:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:var(--border-strong)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--overlay);z-index:100;display:flex;align-items:center;justify-content:center;padding:24px;animation:fadeIn var(--speed) var(--ease)}.modal{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);width:100%;max-width:480px;overflow:hidden;animation:popIn .22s var(--ease)}.menu{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-md);padding:4px;min-width:180px;animation:popIn .14s var(--ease)}.menu-item{display:flex;align-items:center;gap:10px;width:100%;text-align:left;padding:8px 10px;border:none;background:transparent;color:var(--text);font-size:13.5px;border-radius:var(--radius-sm);transition:background .1s}.menu-item:hover{background:var(--bg-hover)}.menu-item.danger{color:#e5484d}.menu-sep{height:1px;background:var(--border);margin:4px 6px}.toast-wrap{position:fixed;bottom:24px;left:50%;transform:translate(-50%);z-index:200;display:flex;flex-direction:column;gap:8px;align-items:center}.toast{background:var(--text);color:var(--bg);padding:10px 18px;border-radius:999px;font-size:13.5px;box-shadow:var(--shadow-lg);animation:toastIn .24s var(--ease)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes popIn{0%{opacity:0;transform:scale(.96) translateY(6px)}to{opacity:1;transform:none}}@keyframes toastIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}.spinner{width:16px;height:16px;border:2px solid var(--border-strong);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:768px){.btn,.tbtn{min-height:40px}.tbtn{min-width:40px}.mobile-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--overlay);z-index:55;animation:fadeIn .15s var(--ease)}.toolbar{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;padding:6px 8px}.toolbar-group,.toolbar-divider{flex-shrink:0}.doc-paper{padding:16px 20px 96px}.ProseMirror{font-size:16px}.toc-sidebar{position:fixed;left:0;top:0;bottom:0;z-index:60;width:85%;max-width:300px;box-shadow:var(--shadow-lg);border-right:1px solid var(--border)}.comments-sidebar{position:fixed;right:0;top:0;bottom:0;z-index:60;width:88%;max-width:340px;box-shadow:var(--shadow-lg);border-left:1px solid var(--border)}.doc-topbar{gap:4px;padding:8px}.title-input{max-width:150px;font-size:14px}.doc-topbar-right{gap:4px}.doc-topbar-right .btn-outline span,.doc-topbar-right .btn-outline svg+span{display:none}.presence-stack{display:none}.docs-sidebar{position:fixed;left:0;top:0;bottom:0;z-index:60;width:78%;max-width:280px;transform:translate(-100%);transition:transform .22s var(--ease);box-shadow:var(--shadow-lg);background:var(--surface)}.docs-sidebar.open{transform:translate(0)}.docs-main{padding:20px 16px 60px}.docs-grid{grid-template-columns:1fr}.docs-topbar{padding:10px 12px;gap:8px}.docs-search{flex:1;max-width:none}.docs-brand-name{display:none}.auth-card{padding:28px 24px 22px}}.splash{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px}.splash-logo{width:64px;height:64px;border-radius:18px;background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;font-size:30px;font-weight:700;display:flex;align-items:center;justify-content:center;box-shadow:0 12px 32px #6366f159}.theme-toggle{display:flex;background:var(--bg-elevated);border:1px solid var(--border);border-radius:999px;padding:3px;gap:2px}.theme-btn{width:30px;height:30px;border-radius:999px;border:none;background:transparent;color:var(--text-2);display:flex;align-items:center;justify-content:center;transition:all var(--speed) var(--ease)}.theme-btn:hover{color:var(--text)}.theme-btn.active{background:var(--accent);color:#fff}.auth-page{height:100%;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;background:var(--bg)}.auth-bg-glow{position:absolute;width:640px;height:640px;border-radius:50%;pointer-events:none;background:radial-gradient(circle,var(--accent-soft) 0%,transparent 65%);top:50%;left:50%;transform:translate(-50%,-50%)}.auth-card{position:relative;width:100%;max-width:400px;padding:36px 34px 28px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);animation:popIn .3s var(--ease)}.auth-brand{display:flex;align-items:center;gap:14px;margin-bottom:28px}.auth-logo{width:48px;height:48px;border-radius:14px;background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;font-size:24px;font-weight:700;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px #6366f159}.auth-title{font-size:22px;font-weight:700;letter-spacing:-.02em}.auth-subtitle{font-size:13px;color:var(--text-3);margin-top:2px}.auth-tabs{display:flex;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);padding:4px;margin-bottom:22px}.auth-tabs button{flex:1;padding:8px;border:none;background:transparent;border-radius:var(--radius-sm);font-size:14px;font-weight:500;color:var(--text-2);transition:all var(--speed) var(--ease)}.auth-tabs button.active{background:var(--accent);color:#fff}.auth-form{display:flex;flex-direction:column;gap:16px}.auth-error{font-size:13px;color:#e5484d;background:#e5484d1a;padding:8px 12px;border-radius:var(--radius-sm)}.auth-submit{width:100%;padding:12px;font-size:15px;margin-top:4px}.auth-footer{margin-top:22px;padding-top:16px;border-top:1px solid var(--border);font-size:12.5px;color:var(--text-3);display:flex;align-items:center;gap:6px;justify-content:center}.auth-corner-theme{position:absolute;top:20px;right:20px}.docs-page{height:100%;display:flex;flex-direction:column}.docs-topbar{display:flex;align-items:center;gap:16px;padding:12px 20px;background:var(--toolbar-bg);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}.docs-brand{display:flex;align-items:center;gap:10px}.docs-logo{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;font-size:17px;font-weight:700;display:flex;align-items:center;justify-content:center}.docs-brand-name{font-size:17px;font-weight:700}.docs-search{position:relative;flex:1;max-width:420px}.docs-search-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text-3)}.docs-search input{width:100%;padding:9px 12px 9px 36px;border:1px solid var(--border);border-radius:999px;background:var(--bg-elevated);color:var(--text);font-size:14px;transition:all var(--speed) var(--ease)}.docs-search input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.docs-actions{display:flex;align-items:center;gap:10px;margin-left:auto}.docs-user{display:flex;align-items:center}.avatar{width:32px;height:32px;border-radius:50%;color:#fff;font-size:14px;font-weight:600;display:flex;align-items:center;justify-content:center;flex-shrink:0;-webkit-user-select:none;user-select:none}.avatar-sm{width:26px;height:26px;font-size:12px}.avatar-xs{width:20px;height:20px;font-size:10px}.docs-layout{flex:1;display:flex;overflow:hidden}.docs-sidebar{width:240px;flex-shrink:0;overflow-y:auto;padding:16px 12px;border-right:1px solid var(--border);background:var(--surface-2)}.sidebar-item{display:flex;align-items:center;gap:9px;padding:7px 10px;margin-bottom:2px;border-radius:var(--radius-sm);cursor:pointer;color:var(--text-2);font-size:13.5px;transition:all .12s;position:relative}.sidebar-item:hover{background:var(--bg-hover);color:var(--text)}.sidebar-item[data-active=true]{background:var(--accent-soft);color:var(--accent);font-weight:600}.sidebar-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sidebar-count{font-size:11.5px;color:var(--text-3)}.sidebar-item[data-active=true] .sidebar-count{color:var(--accent)}.sidebar-divider{height:1px;background:var(--border);margin:12px 4px}.sidebar-section-head{display:flex;align-items:center;justify-content:space-between;padding:0 10px 6px;font-size:12px;font-weight:600;color:var(--text-3);text-transform:uppercase;letter-spacing:.04em}.sidebar-new-folder{display:flex;align-items:center;gap:2px;padding:4px 8px 8px}.sidebar-new-folder .input{font-size:13px;padding:6px 8px}.sidebar-rename-input{font-size:13px;padding:4px 6px;flex:1}.sidebar-item-menu{display:none}.sidebar-item:hover .sidebar-item-menu{display:block}.sidebar-menu{position:absolute;right:8px;top:100%;z-index:40;min-width:120px}.sidebar-item .icon-btn{width:24px;height:24px}.docs-main{flex:1;overflow-y:auto;padding:40px 48px 60px;min-width:0}.docs-heading{margin-bottom:28px}.docs-heading h1{font-size:26px;font-weight:700;margin:0 0 4px;letter-spacing:-.02em}.docs-heading p{font-size:14px;color:var(--text-3);margin:0}.docs-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:80px 20px;color:var(--text-3);gap:8px}.docs-empty-title{font-size:17px;font-weight:600;color:var(--text-2);margin-top:12px}.docs-empty-sub{font-size:13.5px;margin-bottom:16px}.docs-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}.doc-card{padding:20px;cursor:pointer;display:flex;flex-direction:column;gap:10px;position:relative}.doc-card-top{display:flex;align-items:flex-start;justify-content:space-between}.doc-card-actions{position:relative;display:flex;opacity:0;transition:opacity .12s}.doc-card:hover .doc-card-actions{opacity:1}.doc-move-menu{position:absolute;right:0;top:100%;z-index:40;min-width:150px}.menu-label{font-size:11px;color:var(--text-3);padding:6px 10px 2px}.doc-card-folder{display:inline-flex;align-items:center;gap:4px;font-size:12px;color:var(--text-2);background:var(--bg-elevated);border:1px solid var(--border);border-radius:999px;padding:2px 9px;align-self:flex-start}.doc-card-icon{width:44px;height:44px;border-radius:12px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center}.doc-card-title{font-size:15px;font-weight:600;line-height:1.4;word-break:break-word}.doc-card-meta{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:8px}.role-badge{display:inline-flex;align-items:center;gap:4px;font-size:11.5px;font-weight:500;padding:3px 8px;border-radius:999px}.role-owner{background:#f59e0b29;color:#d97706}.role-editor{background:var(--accent-soft);color:var(--accent)}.role-viewer{background:var(--bg-hover);color:var(--text-2)}.doc-card-time{display:inline-flex;align-items:center;gap:4px;font-size:12px;color:var(--text-3)}.trash-actions{display:flex;gap:6px;margin-top:auto;padding-top:8px}.doc-page{height:100%;display:flex;flex-direction:column}.doc-topbar{display:flex;align-items:center;gap:10px;padding:10px 16px;background:var(--toolbar-bg);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);z-index:20}.doc-topbar-title{display:flex;align-items:center;gap:8px;flex:1;min-width:0}.title-input{border:1px solid transparent;background:transparent;color:var(--text);font-size:16px;font-weight:600;padding:6px 10px;border-radius:var(--radius-sm);max-width:380px;width:100%;transition:all var(--speed) var(--ease)}.title-input:hover{background:var(--bg-hover)}.title-input:focus{outline:none;background:var(--bg-elevated);border-color:var(--accent)}.title-input:disabled{opacity:.7}.conn-status{display:inline-flex;align-items:center;color:var(--text-3)}.conn-connected{color:#10b981}.conn-connecting{color:#f59e0b}.conn-disconnected{color:#e5484d}.spin{animation:spin .9s linear infinite}.doc-topbar-right{display:flex;align-items:center;gap:8px}.presence-stack{display:flex;align-items:center;margin-right:4px}.presence-avatar{border:2px solid var(--surface);margin-left:-8px}.presence-avatar:first-child{margin-left:0}.active-ghost{background:var(--accent-soft);color:var(--accent)}.doc-body{flex:1;display:flex;overflow:hidden}.doc-editor-wrap{flex:1;display:flex;flex-direction:column;min-width:0}.doc-canvas{flex:1;overflow-y:auto}.doc-paper{max-width:820px;margin:0 auto;padding:40px 64px 120px}.doc-stats-bar{display:flex;align-items:center;flex-wrap:wrap;gap:4px 10px;padding:6px 14px;flex-shrink:0;border-top:1px solid var(--border);background:var(--surface-2);font-size:12px;color:var(--text-3);-webkit-user-select:none;user-select:none}.doc-stat{display:inline-flex;align-items:baseline;gap:4px;white-space:nowrap}.doc-stat-label{color:var(--text-3)}.doc-stat-value{color:var(--text-2);font-variant-numeric:tabular-nums;font-weight:600}.doc-stat.has-sel .doc-stat-value{color:var(--accent)}.doc-stat-dot{width:3px;height:3px;border-radius:50%;background:var(--border-strong, var(--border))}.doc-stats-spacer{flex:1}.doc-loading{height:100%;display:flex;align-items:center;justify-content:center;gap:12px;color:var(--text-2)}.comments-sidebar{width:320px;flex-shrink:0;border-left:1px solid var(--border);background:var(--surface);display:flex;flex-direction:column;overflow:hidden}.comment-composer{padding:14px;border-bottom:1px solid var(--border);background:var(--surface-2)}.composer-title{font-size:13px;font-weight:600;margin-bottom:8px}.composer-textarea{resize:vertical;min-height:64px}.composer-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:8px}.modal-head{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--border)}.modal-title{display:flex;align-items:center;gap:8px;font-size:16px;font-weight:600}.modal-body{padding:20px 22px;max-height:60vh;overflow-y:auto}.share-create{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.share-role-select{display:flex;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);padding:3px}.share-role-select button{display:flex;align-items:center;gap:6px;padding:6px 12px;border:none;background:transparent;border-radius:var(--radius-sm);font-size:13px;color:var(--text-2);transition:all var(--speed) var(--ease)}.share-role-select button.active{background:var(--accent);color:#fff}.share-empty{text-align:center;color:var(--text-3);font-size:13.5px;padding:24px 0}.share-list{display:flex;flex-direction:column;gap:8px}.share-item{display:flex;align-items:center;gap:10px;padding:10px 12px;background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-md)}.share-item-role{display:inline-flex;align-items:center;gap:4px;font-size:12px;font-weight:500;color:var(--text-2);white-space:nowrap}.share-item-link{flex:1;font-size:12.5px;color:var(--text-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-family:var(--font-mono)}.member-add{display:flex;gap:8px;margin-bottom:16px}.member-list{display:flex;flex-direction:column;gap:6px}.member-item{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:var(--radius-md);transition:background .1s}.member-item:hover{background:var(--bg-hover)}.member-name{font-size:14px;font-weight:500}.member-email{font-size:12px;color:var(--text-3)}.member-role{margin-left:auto}.role-select{padding:5px 8px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-elevated);color:var(--text);font-size:13px}.docs-sidebar-toggle{display:none}@media(max-width:768px){.docs-sidebar-toggle{display:inline-flex}}.toolbar{display:flex;align-items:center;flex-wrap:wrap;gap:2px;padding:8px 12px;background:var(--toolbar-bg);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:15}.toolbar-group{display:flex;align-items:center;gap:1px}.toolbar-divider{width:1px;height:22px;background:var(--border);margin:0 8px;flex-shrink:0}.toolbar-readonly{margin-left:auto;font-size:12px;font-weight:500;color:var(--text-3);padding:4px 10px;background:var(--bg-hover);border-radius:999px}.tbtn{display:inline-flex;align-items:center;justify-content:center;gap:4px;min-width:32px;height:32px;padding:0 6px;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--text-2);font-size:13px;transition:all .12s var(--ease)}.tbtn:hover{background:var(--bg-hover);color:var(--text)}.tbtn.active{background:var(--accent-soft);color:var(--accent)}.tbtn.accent{color:var(--accent)}.tbtn.accent:hover{background:var(--accent-soft)}.tbtn:disabled{opacity:.35;cursor:not-allowed}.tbtn-wide{gap:5px}.dd{position:relative}.dd-trigger{background:transparent;border:none;padding:0}.dd-menu{position:absolute;top:calc(100% + 6px);left:0;z-index:60;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-md);padding:4px;min-width:160px;max-height:340px;overflow-y:auto;animation:popIn .14s var(--ease)}.dd-caret{color:var(--text-3)}.menu-empty{padding:10px 12px;font-size:12.5px;color:var(--text-3)}.color-menu{min-width:auto}.color-grid{display:grid;grid-template-columns:repeat(5,22px);gap:6px;padding:8px}.color-cell{width:22px;height:22px;border-radius:6px;border:1px solid var(--border);cursor:pointer;transition:transform .1s}.color-cell:hover{transform:scale(1.15)}.color-reset{padding:8px;text-align:center;font-size:12.5px;color:var(--text-2);border-top:1px solid var(--border);cursor:pointer}.color-reset:hover{color:var(--text)}.color-custom-row{display:flex;align-items:center;gap:8px;padding:6px 8px;border-top:1px solid var(--border)}.color-custom{width:26px;height:26px;border-radius:6px;overflow:hidden;border:1px solid var(--border);cursor:pointer;position:relative;flex-shrink:0}.color-custom input[type=color]{position:absolute;top:-6px;right:-6px;bottom:-6px;left:-6px;width:calc(100% + 12px);height:calc(100% + 12px);border:none;padding:0;cursor:pointer;background:transparent}.color-custom-label{font-size:12px;color:var(--text-3)}.export-menu{right:0;left:auto;min-width:180px}.folio-editor{min-height:400px;outline:none}.ProseMirror{color:var(--text);font-size:16px;line-height:1.75;word-break:break-word}.ProseMirror:focus{outline:none}.ProseMirror p.is-editor-empty:first-child:before{content:attr(data-placeholder);float:left;color:var(--text-3);pointer-events:none;height:0}.ProseMirror h1{font-size:2em;font-weight:700;line-height:1.3;margin:.6em 0 .4em;letter-spacing:-.01em}.ProseMirror h2{font-size:1.6em;font-weight:700;line-height:1.35;margin:.55em 0 .35em}.ProseMirror h3{font-size:1.3em;font-weight:650;line-height:1.4;margin:.5em 0 .3em}.ProseMirror h4{font-size:1.15em;font-weight:600;line-height:1.45;margin:.45em 0 .25em}.ProseMirror h5,.ProseMirror h6{font-size:1em;font-weight:600;margin:.4em 0 .2em}.ProseMirror p{margin:.35em 0}.ProseMirror a{color:var(--accent);text-decoration:underline;text-underline-offset:2px;cursor:pointer}.ProseMirror blockquote{margin:.6em 0;padding:4px 16px;border-left:3px solid var(--accent);color:var(--text-2);background:var(--bg-elevated);border-radius:0 var(--radius-sm) var(--radius-sm) 0}.ProseMirror code{font-family:var(--font-mono);font-size:.88em;background:var(--code-bg);padding:2px 6px;border-radius:5px}.ProseMirror pre{background:var(--code-bg);border:1px solid var(--border);border-radius:var(--radius-md);padding:14px 16px;overflow-x:auto;margin:.7em 0}.ProseMirror pre code{background:transparent;padding:0;font-size:.86em}.ProseMirror ul,.ProseMirror ol{padding-left:1.6em;margin:.35em 0}.ProseMirror li{margin:.15em 0}.ProseMirror li p{margin:.1em 0}.ProseMirror ul[data-type=taskList]{list-style:none;padding-left:.4em}.ProseMirror ul[data-type=taskList] li{display:flex;gap:8px;align-items:flex-start}.ProseMirror ul[data-type=taskList] li>label{margin-top:5px}.ProseMirror ul[data-type=taskList] li>div{flex:1}.ProseMirror ul[data-type=taskList] input[type=checkbox]{accent-color:var(--accent);width:15px;height:15px;cursor:pointer}.ProseMirror li[data-checked=true]>div{text-decoration:line-through;color:var(--text-3)}.ProseMirror hr{border:none;border-top:2px solid var(--border);margin:1.4em 0}.ProseMirror table{border-collapse:collapse;table-layout:fixed;width:100%;margin:.8em 0;overflow:hidden}.ProseMirror th,.ProseMirror td{border:1px solid var(--border-strong);padding:8px 12px;vertical-align:top;position:relative;min-width:40px}.ProseMirror th{background:var(--bg-elevated);font-weight:600}.ProseMirror .selectedCell:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:var(--accent-soft);pointer-events:none}.ProseMirror img{max-width:100%;height:auto;border-radius:var(--radius-md)}.ProseMirror img.ProseMirror-selectednode{outline:2px solid var(--accent)}.ProseMirror ::selection{background:var(--selection-bg)}.ProseMirror sub,.ProseMirror sup{font-size:.72em;line-height:0}.ProseMirror .cm-hl{background:#f59e0b38;border-bottom:2px solid rgba(245,158,11,.6);border-radius:2px;cursor:pointer;transition:background .12s}.ProseMirror .cm-hl:hover{background:#f59e0b52}.ProseMirror .cm-hl.is-active{background:#f59e0b61;box-shadow:0 0 0 2px #f59e0b66}.collaboration-cursor__caret{border-left:2px solid #888;border-right:2px solid #888;margin-left:-1px;margin-right:-1px;pointer-events:none;position:relative;word-break:normal}.collaboration-cursor__label{position:absolute;top:-1.4em;left:-1px;font-size:11px;font-weight:500;color:#fff;padding:2px 6px;border-radius:6px 6px 6px 0;white-space:nowrap;-webkit-user-select:none;user-select:none;line-height:1.3}.comments-panel{display:flex;flex-direction:column;flex:1;overflow:hidden}.comments-header{display:flex;align-items:center;gap:8px;padding:13px 16px;border-bottom:1px solid var(--border);font-size:14px;font-weight:600}.comments-count{margin-left:auto;font-size:12px;color:var(--text-3);background:var(--bg-hover);padding:1px 8px;border-radius:999px}.comments-list{flex:1;overflow-y:auto;padding:8px}.comments-empty{text-align:center;color:var(--text-3);font-size:13px;padding:32px 16px}.comment-thread{border:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:8px;background:var(--surface-2);transition:border-color .14s,box-shadow .14s;overflow:hidden}.comment-thread.active{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.comment-thread.resolved{opacity:.65}.comment-thread-head{display:flex;align-items:center;gap:10px;padding:10px 12px;cursor:pointer}.comment-meta{flex:1;min-width:0}.comment-author{font-size:13px;font-weight:600;line-height:1.3}.comment-time{font-size:11.5px;color:var(--text-3)}.comment-actions{display:flex;gap:2px;opacity:0;transition:opacity .12s}.comment-thread:hover .comment-actions{opacity:1}.icon-btn{width:26px;height:26px;display:flex;align-items:center;justify-content:center;border:none;background:transparent;color:var(--text-3);border-radius:6px;transition:all .1s}.icon-btn:hover{background:var(--bg-hover);color:var(--text)}.comment-body{padding:0 12px 12px}.comment-quote{font-size:11.5px;color:var(--accent);margin-bottom:6px;cursor:pointer;-webkit-user-select:none;user-select:none}.comment-text{font-size:13.5px;line-height:1.6;white-space:pre-wrap}.comment-reply{display:flex;gap:8px;margin-top:10px}.reply-content{flex:1;min-width:0}.reply-author{font-size:12px;font-weight:600;color:var(--text-2)}.reply-text{font-size:13px;line-height:1.55;white-space:pre-wrap}.reply-composer{margin-top:10px}.reply-composer .input{font-size:13px;padding:7px 10px}.toc-sidebar{width:220px;flex-shrink:0;border-right:1px solid var(--border);background:var(--surface);display:flex;flex-direction:column;overflow:hidden}.toc-panel{display:flex;flex-direction:column;flex:1;overflow:hidden}.toc-header{display:flex;align-items:center;gap:8px;padding:13px 16px;border-bottom:1px solid var(--border);font-size:14px;font-weight:600}.toc-count{margin-left:auto;font-size:12px;color:var(--text-3);background:var(--bg-hover);padding:1px 8px;border-radius:999px}.toc-list{flex:1;overflow-y:auto;padding:8px}.toc-empty{text-align:center;color:var(--text-3);font-size:12.5px;padding:24px 12px;line-height:1.6}.toc-item{padding:5px 10px;border-radius:6px;cursor:pointer;color:var(--text-2);font-size:13.5px;line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:all .1s}.toc-item:hover{background:var(--bg-hover);color:var(--text)}.toc-level-1{font-weight:600;color:var(--text)}.toc-level-2{padding-left:20px}.toc-level-3{padding-left:32px}.toc-level-4{padding-left:44px}.toc-level-5{padding-left:56px}.toc-level-6{padding-left:68px}.sidebar-tabs{display:flex;padding:6px;gap:2px;border-bottom:1px solid var(--border);background:var(--surface-2)}.sidebar-tabs button{flex:1;padding:7px;border:none;background:transparent;border-radius:var(--radius-sm);font-size:13px;font-weight:500;color:var(--text-2);transition:all var(--speed) var(--ease);display:flex;align-items:center;justify-content:center;gap:5px}.sidebar-tabs button.active{background:var(--accent);color:#fff}.tab-count{font-size:11px;background:#00000026;padding:0 6px;border-radius:999px}.sidebar-tabs button.active .tab-count{background:#ffffff40}.ai-panel{display:flex;flex-direction:column;flex:1;overflow:hidden}.ai-header{display:flex;align-items:center;gap:8px;padding:12px 14px;border-bottom:1px solid var(--border);font-size:14px;font-weight:600}.ai-model{margin-left:auto;font-size:11px;color:var(--text-3);background:var(--bg-hover);padding:2px 8px;border-radius:999px}.ai-not-configured{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:24px;color:var(--text-3);text-align:center}.ai-nc-title{font-size:15px;font-weight:600;color:var(--text-2)}.ai-nc-sub{font-size:12.5px;line-height:1.6}.ai-nc-sub code{background:var(--code-bg);padding:1px 5px;border-radius:4px;font-size:11.5px}.ai-messages{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:10px}.ai-welcome{display:flex;flex-direction:column;gap:10px}.ai-welcome-title{font-size:13px;color:var(--text-2)}.ai-quick-actions{display:flex;flex-wrap:wrap;gap:6px}.ai-quick-btn{display:inline-flex;align-items:center;gap:5px;padding:6px 10px;border:1px solid var(--border);border-radius:999px;background:var(--bg-elevated);color:var(--text-2);font-size:12px;transition:all .12s}.ai-quick-btn:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}.ai-msg{display:flex}.ai-msg-user{justify-content:flex-end}.ai-msg-assistant{justify-content:flex-start}.ai-msg-content{max-width:92%;padding:9px 12px;border-radius:12px;font-size:13px;line-height:1.6;white-space:pre-wrap;word-break:break-word}.ai-msg-user .ai-msg-content{background:var(--accent);color:#fff;border-bottom-right-radius:4px}.ai-msg-assistant .ai-msg-content{background:var(--bg-elevated);border:1px solid var(--border);border-bottom-left-radius:4px;color:var(--text)}.ai-input-row{padding:10px 12px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:8px}.ai-input{resize:vertical;min-height:48px;font-size:13px}.ai-input-actions{display:flex;gap:6px;justify-content:flex-end}.ai-scope{display:flex;padding:6px;gap:2px;border-bottom:1px solid var(--border);background:var(--surface-2)}.ai-scope button{flex:1;display:flex;align-items:center;justify-content:center;gap:4px;padding:5px;border:none;background:transparent;border-radius:6px;font-size:12px;color:var(--text-2);transition:all var(--speed) var(--ease)}.ai-scope button.active{background:var(--accent);color:#fff}.ai-selection-hint{padding:6px 12px;font-size:12px;color:var(--text-2);line-height:1.5;border-bottom:1px solid var(--border);background:var(--accent-soft);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ai-selection-hint b{color:var(--accent);font-weight:600}.ai-memory{border-bottom:1px solid var(--border)}.ai-memory-head{display:flex;align-items:center;gap:6px;padding:8px 12px;font-size:12.5px;font-weight:600;color:var(--text-2);cursor:pointer;-webkit-user-select:none;user-select:none}.ai-memory-head svg:last-child{margin-left:auto;color:var(--text-3)}.ai-memory-count{font-size:11px;color:var(--text-3);background:var(--bg-hover);padding:0 7px;border-radius:999px}.ai-memory-list{padding:4px 12px 10px;max-height:160px;overflow-y:auto;display:flex;flex-direction:column;gap:4px}.ai-memory-empty{font-size:12px;color:var(--text-3);padding:4px 0}.ai-memory-item{font-size:12.5px;line-height:1.5;color:var(--text-2);padding:5px 9px;background:var(--bg-elevated);border-radius:6px;word-break:break-word}.correct-modal{max-width:640px}.correct-diff{font-size:14px;line-height:1.8;white-space:pre-wrap;word-break:break-word}.correct-diff del.diff-del{background:#ef444429;color:#ef4444;text-decoration:line-through;border-radius:2px}.correct-diff ins.diff-ins{background:#10b98129;color:#10b981;text-decoration:none;border-radius:2px}.modal-foot{display:flex;justify-content:flex-end;gap:8px;padding:14px 22px;border-top:1px solid var(--border)}