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.sqc-ico{width:28px;height:28px;border-radius:8px;background:#fff;border:1px solid var(--hairline);display:grid;place-items:center;color:var(--lilac-deep);margin-bottom:4px}.side-quick-card .sqc-title{font-size:13px;font-weight:800;color:var(--ink)}.side-quick-card .sqc-sub{font-size:11px;color:var(--ink-3);font-weight:600}.side-quick-card .sqc-badge{position:absolute;top:10px;inset-inline-start:10px;background:var(--lilac-soft);color:var(--lilac-deep);font-size:10px;font-weight:800;padding:2px 8px;border-radius:999px;letter-spacing:.04em}.side-quick-card.side-quick-quiz .sqc-ico{color:#C28A1A}.side-quick-card.side-quick-flash .sqc-ico{color:var(--lilac-deep)}.side-chat-scroll{flex:1;overflow-y:auto;padding:6px 18px 14px;min-height:0}.side-chat-empty{display:flex;flex-direction:column;align-items:center;text-align:center;padding:30px 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0}.side-msg{display:flex}.side-msg-user{justify-content:flex-end}.side-msg-assistant{justify-content:flex-start}.side-msg-bubble{max-width:88%;padding:10px 14px;border-radius:14px;font-size:13px;line-height:1.55;white-space:pre-wrap;word-wrap:break-word}.side-msg-user .side-msg-bubble{background:var(--lilac-deep);color:#fff;border-bottom-right-radius:4px}.side-msg-assistant .side-msg-bubble{background:var(--bg-soft);color:var(--ink);border:1px solid var(--hairline);border-bottom-left-radius:4px}.side-chat-error{padding:8px 14px;background:#FCE9DD;color:#a13d3d;font-size:12px;font-weight:600;border-top:1px solid #f4c8b1}.side-chat-form{display:flex;align-items:center;gap:8px;padding:12px 14px;border-top:1px solid var(--hairline);background:var(--card)}.side-chat-input{flex:1;background:var(--bg-soft);border:1px solid var(--hairline);border-radius:11px;padding:10px 12px;font-family:inherit;font-size:13px;color:var(--ink);outline:none;transition:border-color .15s}.side-chat-input:focus{border-color:var(--lilac-deep)}.side-chat-input:disabled{opacity:.6}.side-chat-send{width:36px;height:36px;border-radius:11px;border:none;background:var(--lilac-deep);color:#fff;display:grid;place-items:center;cursor:pointer;transition:transform .15s,box-shadow .15s}.side-chat-send:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 14px rgba(31,92,61,.32)}.side-chat-send:disabled{opacity:.4;cursor:not-allowed}.side-chat-rehide{position:fixed;bottom:28px;inset-inline-start:28px;width:54px;height:54px;border-radius:50%;background:var(--lilac-deep);color:#fff;border:none;display:grid;place-items:center;cursor:pointer;box-shadow:0 12px 30px -8px rgba(31,92,61,.55);z-index:30;transition:transform .15s}.side-chat-rehide:hover{transform:translateY(-2px)}.note-crumbs{display:flex;align-items:center;gap:8px;color:var(--ink-3);font-size:14px;font-weight:600;margin-bottom:20px}.note-crumbs b{color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:360px}.note-head{display:flex;align-items:flex-start;gap:18px;margin-bottom:24px}.note-head-meta{display:flex;align-items:center;gap:10px;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;margin-bottom:4px;color:var(--ink-3)}.note-head-title{font-size:34px;font-weight:900;letter-spacing:-.02em;margin:0;line-height:1.15;color:var(--ink)}.chat-solo .chat-shell{height:calc(100vh - 320px);min-height:480px;max-height:720px}.chat-split{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:16px;height:calc(100vh - 320px);min-height:540px}.chat-pdf-pane{background:var(--card);border:1.5px solid var(--ink);border-radius:18px;overflow:hidden;display:flex}.chat-pdf-frame{flex:1;border:none;width:100%;height:100%;background:var(--bg-soft)}.chat-split 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span{width:6px;height:6px;border-radius:50%;background:var(--ink-3);animation:chatTyping 1.2s ease-in-out infinite}.chat-typing span:nth-child(2){animation-delay:.15s}.chat-typing span:nth-child(3){animation-delay:.3s}@keyframes chatTyping{0%,60%,to{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-3px)}}.chat-error{padding:10px 16px;background:#FCE9DD;color:#a13d3d;font-size:13px;font-weight:600;border-top:1px solid #f4c8b1}.chat-form{display:flex;align-items:center;gap:10px;padding:14px;border-top:1px solid var(--hairline);background:var(--card)}.chat-input{flex:1;background:var(--bg-soft);border:1px solid var(--hairline);border-radius:12px;padding:11px 14px;font-family:inherit;font-size:14px;color:var(--ink);outline:none;transition:border-color .15s}.chat-input:focus{border-color:var(--lilac-deep)}.chat-input:disabled{opacity:.6}.chat-send{width:40px;height:40px;border-radius:12px;border:none;background:var(--lilac-deep);color:#fff;display:grid;place-items:center;cursor:pointer;transition:transform .15s,box-shadow .15s}.chat-send:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 14px rgba(31,92,61,.32)}.chat-send:disabled{opacity:.4;cursor:not-allowed}@media (max-width:1100px){.note-stage{grid-template-columns:64px minmax(0,1fr)}.side-chat{display:none}}@media (max-width:760px){.note-stage{grid-template-columns:1fr}.note-rail{flex-direction:row;overflow-x:auto;border-inline-end:none;border-bottom:1px solid var(--hairline);padding:10px}.note-rail .nr-item[data-label]:before{display:none}.note-content{padding:18px 16px 80px}.note-head-title{font-size:26px!important}.chat-split{grid-template-columns:1fr;grid-template-rows:50vh auto;height:auto;min-height:0}}