.qna_container__47lDb{padding:var(--section-padding-y) var(--section-padding-x);max-width:var(--container-max);margin:0 auto;min-height:calc(100vh - var(--nav-height));display:flex;flex-direction:column;gap:2rem}.qna_topNav__bAJi2{display:flex;justify-content:flex-start;margin-bottom:1rem}.qna_backButton__NTT6m{display:inline-flex;align-items:center;gap:.5rem;color:var(--color-primary);font-weight:600;text-decoration:none;transition:opacity .2s}.qna_backButton__NTT6m:hover{opacity:.8}.qna_header__TUAiO{text-align:center;margin-bottom:2rem}.qna_title__SXA94{color:var(--color-primary);font-size:2.5rem;margin-bottom:1rem}.qna_subtitle__TgR4i{color:var(--text-muted);font-size:1.1rem}.qna_askSection__6vDSo{background:var(--bg-light);padding:2rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-card);display:flex;flex-direction:column;gap:1rem}.qna_inputGroup__9DzFT{display:flex;flex-direction:column;gap:.5rem}.qna_label__J1_zO{font-weight:600;color:var(--text-dark)}.qna_input__lIyAn{padding:1rem;border:1px solid #e5e7eb;border-radius:var(--radius-md);font-size:1rem;font-family:inherit;transition:border-color .2s}.qna_input__lIyAn:focus{outline:none;border-color:var(--color-primary)}.qna_button__KT9ld{background:var(--color-primary);color:var(--text-white);padding:1rem 2rem;border-radius:var(--radius-full);font-weight:600;font-size:1.1rem;border:none;cursor:pointer;transition:transform .2s,box-shadow .2s;align-self:flex-end}.qna_button__KT9ld:hover{transform:translateY(-2px);box-shadow:var(--shadow-btn)}.qna_button__KT9ld:disabled{opacity:.7;cursor:not-allowed;transform:none}.qna_mainContent__AYex7{display:grid;grid-template-columns:300px 1fr;grid-gap:2rem;gap:2rem;align-items:start}.qna_topicsSidebar__RAVJ0{background:var(--bg-white);border-radius:var(--radius-lg);padding:1.5rem;box-shadow:var(--shadow-card);display:flex;flex-direction:column;gap:1rem;max-height:600px;overflow-y:auto}.qna_topicsSidebar__RAVJ0 h2{color:var(--text-dark);font-size:1.5rem;border-bottom:2px solid var(--bg-light);padding-bottom:.5rem;margin-bottom:1rem}.qna_topicCard__MMyN4{padding:1rem;background:var(--bg-light);border-radius:var(--radius-md);cursor:pointer;transition:all .2s;border:2px solid transparent}.qna_topicCard__MMyN4:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,.05)}.qna_topicCardActive__l0rzL{border-color:var(--color-primary);background:var(--color-primary-light)}.qna_topicTitle__pvH5u{font-weight:600;color:var(--text-dark);margin-bottom:.5rem}.qna_topicDate__tQm0k{font-size:.85rem;color:var(--text-muted)}.qna_timelineContainer__X6EKR{background:var(--bg-white);border-radius:var(--radius-lg);padding:2rem;box-shadow:var(--shadow-card);display:flex;flex-direction:column;gap:2rem;min-height:500px}.qna_timelineHeader__PbUeh{border-bottom:2px solid var(--bg-light);padding-bottom:1rem}.qna_timelineHeader__PbUeh h2{color:var(--color-primary);font-size:1.8rem;margin-bottom:.5rem}.qna_messagesList__yV24T{display:flex;flex-direction:column;gap:1.5rem;position:relative}.qna_messagesList__yV24T:before{content:"";position:absolute;top:0;bottom:0;right:15px;width:2px;background:var(--color-primary-light)}.qna_messageCard__KE5qk{position:relative;padding-right:3rem}.qna_messageDot__F7j1i{position:absolute;right:9px;top:5px;width:14px;height:14px;background:var(--color-primary);border-radius:50%;border:3px solid var(--bg-white)}.qna_messageContent__Xx8kK{background:var(--bg-light);padding:1.5rem;border-radius:var(--radius-md);box-shadow:0 2px 8px rgba(0,0,0,.05)}.qna_messageHeader__kYbCa{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}.qna_messageAuthor__NGdxb{font-weight:700;color:var(--color-primary-dark)}.qna_messageDate__jDiP9{font-size:.85rem;color:var(--text-muted)}.qna_messageText__6XyxS{color:var(--text-dark);line-height:1.6;white-space:pre-wrap}.qna_messageActions__38huQ{margin-top:1rem;display:flex;gap:1rem}.qna_cancelButton__3_UWa,.qna_editButton__RreV8,.qna_saveButton__u4pXE{padding:.5rem 1rem;border-radius:var(--radius-sm);font-size:.9rem;cursor:pointer;border:none;font-weight:600}.qna_editButton__RreV8{background:transparent;color:var(--color-primary);border:1px solid var(--color-primary)}.qna_saveButton__u4pXE{background:var(--color-primary);color:var(--text-white)}.qna_cancelButton__3_UWa{background:#f3f4f6;color:var(--text-dark)}.qna_textarea__Vi2_J{width:100%;padding:1rem;border:1px solid #e5e7eb;border-radius:var(--radius-md);font-size:1rem;font-family:inherit;resize:vertical;min-height:100px}.qna_textarea__Vi2_J:focus{outline:none;border-color:var(--color-primary)}.qna_addMessageSection__WT7Nn{margin-top:2rem;background:var(--bg-reading);padding:1.5rem;border-radius:var(--radius-lg);display:flex;flex-direction:column;gap:1rem}@media (max-width:768px){.qna_mainContent__AYex7{grid-template-columns:1fr}.qna_container__47lDb{padding:2rem 1rem}}