._layout_1pqmn_2{min-height:100vh;background:#f6f7f9;display:flex;flex-direction:column}._topbar_1pqmn_10{position:sticky;top:0;z-index:100;background:#ffffffeb;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid #e5e7eb}._topbarInner_1pqmn_19{max-width:1240px;margin:0 auto;padding:0 24px;height:56px;display:flex;align-items:center;gap:32px}._brand_1pqmn_29{display:flex;align-items:center;gap:8px;cursor:pointer;-webkit-user-select:none;user-select:none}._brandIcon_1pqmn_37{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,#2563eb,#7c3aed);color:#fff;font-size:15px;display:inline-flex;align-items:center;justify-content:center}._brandName_1pqmn_49{font-size:16px;font-weight:700;color:#1f2937;letter-spacing:.5px}._nav_1pqmn_56{display:flex;align-items:center;gap:4px;flex:1}._navItem_1pqmn_63{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:8px;font-size:13px;color:#6b7280;cursor:pointer;transition:all .15s}._navItem_1pqmn_63:hover{color:#2563eb;background:#eff6ff}._navItemActive_1pqmn_80{color:#2563eb;font-weight:600;background:#eff6ff}._topbarRight_1pqmn_86{display:flex;align-items:center;gap:12px}._progressTag_1pqmn_92{font-size:12px;color:#4b5563;border-radius:20px;background:#f3f4f6;border:1px solid #e5e7eb}._progressBar_1pqmn_100{width:120px;margin-inline-end:0}._content_1pqmn_106{flex:1;width:100%;max-width:1240px;margin:0 auto;padding:24px;box-sizing:border-box}@media(max-width:767px){._topbarInner_1pqmn_19{padding:0 16px;gap:12px}._nav_1pqmn_56{display:none}._progressBar_1pqmn_100{width:72px}._content_1pqmn_106{padding:16px}}._hero_mir4c_4{text-align:center;padding:64px 24px 48px;background:radial-gradient(ellipse 60% 50% at 50% -10%,rgba(37,99,235,.12),transparent),radial-gradient(ellipse 40% 40% at 85% 20%,rgba(124,58,237,.08),transparent);border:1px solid #e5e7eb;border-radius:16px;background-color:#fff;margin-bottom:32px}._heroBadge_mir4c_16{display:inline-flex;align-items:center;gap:8px;padding:4px 14px;border-radius:20px;background:#eff6ff;color:#2563eb;font-size:13px;font-weight:500;margin-bottom:20px}._heroBadgeDot_mir4c_29{width:6px;height:6px;border-radius:50%;background:#2563eb}._heroTitle_mir4c_36{margin:0 0 16px;font-size:40px;line-height:1.2;font-weight:800;color:#111827;letter-spacing:-.5px}._heroAccent_mir4c_45{background:linear-gradient(135deg,#2563eb,#7c3aed);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}._heroSubtitle_mir4c_52{margin:0 auto 28px;max-width:560px;font-size:16px;line-height:1.7;color:#6b7280}._heroActions_mir4c_60{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}._heroCta_mir4c_67,._heroSecondary_mir4c_71{min-width:140px}._heroStats_mir4c_76{display:flex;justify-content:center;align-items:center;gap:36px;margin-top:40px;padding-top:32px;border-top:1px solid #eef0f3}._heroStat_mir4c_76{display:flex;flex-direction:column;gap:2px;min-width:72px}._heroStatValue_mir4c_93{font-size:26px;font-weight:800;color:#1f2937;line-height:1.1}._heroStatLabel_mir4c_100{font-size:13px;color:#9ca3af}._heroStatDivider_mir4c_105{width:1px;height:36px;background:#e5e7eb}._filterBar_mir4c_112{display:flex;flex-direction:column;gap:14px;background:#fff;border:1px solid #e5e7eb;border-radius:14px;padding:16px 20px;margin-bottom:20px}._searchInput_mir4c_123{max-width:420px}._tagRow_mir4c_127{display:flex;flex-wrap:wrap;gap:8px;align-items:center}._filterTag_mir4c_134{cursor:pointer;-webkit-user-select:none;user-select:none;font-size:13px}._emptyHint_mir4c_140{text-align:center;color:#9ca3af;font-size:14px;padding:40px 0}._section_mir4c_148{margin-bottom:32px}._sectionHeader_mir4c_152{display:flex;align-items:baseline;gap:12px;margin-bottom:16px}._sectionTitle_mir4c_159{margin:0;font-size:20px;font-weight:700;color:#1f2937}._sectionHint_mir4c_166{font-size:13px;color:#9ca3af}._chapterGrid_mir4c_172{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}._chapterCard_mir4c_178{background:#fff;border:1px solid #e5e7eb;border-radius:14px;padding:20px;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}._chapterCard_mir4c_178:hover{transform:translateY(-3px);border-color:#bfdbfe;box-shadow:0 8px 24px #2563eb1a}._chapterCardTop_mir4c_196{display:flex;align-items:flex-start;gap:14px;margin-bottom:16px}._chapterIcon_mir4c_203{width:46px;height:46px;border-radius:12px;color:#fff;font-size:20px;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 4px 12px #2563eb40}._chapterCardInfo_mir4c_216{flex:1;min-width:0}._chapterTitle_mir4c_221{margin:0 0 6px;font-size:16px;font-weight:600;color:#1f2937}._chapterDesc_mir4c_228{margin:0;font-size:13px;line-height:1.5;color:#6b7280;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}._chapterCardMeta_mir4c_239{display:flex;gap:8px;margin-bottom:14px}._chapterLessonsTag_mir4c_245{border-radius:20px;background:#f3f4f6;border-color:#e5e7eb;color:#4b5563;font-size:12px;padding-inline:10px}._chapterPassedTag_mir4c_254{border-radius:20px;font-size:12px;padding-inline:10px}._chapterProgressRow_mir4c_260{display:flex;align-items:center;gap:10px}._chapterProgress_mir4c_260{flex:1;margin-inline-end:0}._chapterProgressText_mir4c_271{font-size:12px;font-weight:600;color:#4b5563;min-width:36px;text-align:right}._totalProgress_mir4c_280{margin-top:20px;background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:16px 20px}._totalProgressText_mir4c_288{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:#6b7280;margin-bottom:8px}._featureGrid_mir4c_298{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}._featureCard_mir4c_304{background:#fff;border:1px solid #e5e7eb;border-radius:14px;padding:24px 20px;text-align:center;transition:transform .18s ease,box-shadow .18s ease}._featureCard_mir4c_304:hover{transform:translateY(-3px);box-shadow:0 8px 24px #0000000f}._featureIcon_mir4c_320{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;background:#eff6ff;color:#2563eb;font-size:20px;margin-bottom:14px}._featureTitle_mir4c_333{margin:0 0 8px;font-size:15px;font-weight:600;color:#1f2937}._featureDesc_mir4c_340{margin:0;font-size:13px;line-height:1.6;color:#6b7280}@media(max-width:991px){._chapterGrid_mir4c_172,._featureGrid_mir4c_298{grid-template-columns:1fr}._heroTitle_mir4c_36{font-size:30px}}@media(max-width:767px){._hero_mir4c_4{padding:40px 16px 32px}._heroStats_mir4c_76{gap:20px}}._breadcrumb_1ckir_4{margin-bottom:16px}._chapterOverview_1ckir_9{display:flex;justify-content:space-between;align-items:center;gap:24px;background:#fff;border:1px solid #e5e7eb;border-radius:14px;padding:20px 24px;margin-bottom:16px}._chapterOverviewLeft_1ckir_21{flex:1;min-width:0}._chapterTitle_1ckir_26{margin:0 0 6px;font-size:22px;font-weight:700;color:#1f2937}._chapterDesc_1ckir_33{margin:0 0 10px;font-size:13px;line-height:1.5;color:#6b7280}._chapterTags_1ckir_40{display:flex;gap:8px;flex-wrap:wrap}._chapterTag_1ckir_40{border-radius:20px;background:#f3f4f6;border-color:#e5e7eb;color:#4b5563;font-size:12px;padding-inline:10px}._chapterOverviewRight_1ckir_55{flex-shrink:0;display:flex;flex-direction:column;align-items:center;gap:6px}._workbench_1ckir_64{display:flex;align-items:flex-start;gap:16px}._sidebar_1ckir_71{width:250px;flex-shrink:0;position:sticky;top:72px;background:#fff;border:1px solid #e5e7eb;border-radius:14px;padding:16px 14px;max-height:calc(100vh - 96px);display:flex;flex-direction:column}._sidebarHeader_1ckir_85{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}._sidebarTitle_1ckir_92{font-size:13px;font-weight:600;color:#1f2937}._sidebarCount_1ckir_98{font-size:12px;color:#2563eb;font-weight:600;background:#eff6ff;border-radius:20px;padding:2px 10px}._sidebarProgress_1ckir_107{margin-inline-end:0;margin-bottom:12px}._lessonList_1ckir_112{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:4px;padding-right:2px}._lessonList_1ckir_112::-webkit-scrollbar{width:5px}._lessonList_1ckir_112::-webkit-scrollbar-track{background:#f3f4f6;border-radius:3px}._lessonList_1ckir_112::-webkit-scrollbar-thumb{background:#d1d5db;border-radius:3px}._lessonItem_1ckir_139{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:10px;cursor:pointer;transition:all .15s;border:1px solid transparent;-webkit-user-select:none;user-select:none}._lessonItem_1ckir_139:hover{background:#f8fafc}._lessonItemActive_1ckir_155{background:#eff6ff;border-color:#bfdbfe}._lessonItemActive_1ckir_155:hover{background:#eff6ff}._lessonItemActive_1ckir_155 ._lessonItemTitle_1ckir_163{color:#1d4ed8;font-weight:600}._lessonIndex_1ckir_169{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;background:#f3f4f6;color:#6b7280;font-size:11px;font-weight:600;flex-shrink:0}._lessonIndexActive_1ckir_183{background:#2563eb;color:#fff}._lessonIndexPassed_1ckir_188{background:#ecfdf5;color:#059669}._lessonItemTitle_1ckir_163{flex:1;min-width:0;font-size:13px;color:#374151;line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}._lessonItemArrow_1ckir_204{font-size:10px;color:#2563eb;flex-shrink:0}._content_1ckir_211{flex:1;min-width:0;display:flex;flex-direction:column;gap:16px}._lessonInfo_1ckir_220{background:#fff;border:1px solid #e5e7eb;border-radius:14px;padding:18px 20px}._lessonInfoHead_1ckir_227{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:6px}._lessonTitle_1ckir_236{margin:0;font-size:18px;font-weight:700;color:#1f2937}._lessonBadges_1ckir_243{display:flex;gap:6px;flex-wrap:wrap}._lessonBadge_1ckir_243{border-radius:20px;font-size:12px;margin-inline-end:0}._lessonDesc_1ckir_255{margin:0;font-size:13px;line-height:1.6;color:#6b7280}._tips_1ckir_263{border-radius:12px;border:1px solid #dbeafe;background:#f0f6ff}._tips_1ckir_263 .ant-alert-icon{color:#2563eb}._tipsList_1ckir_273{margin:8px 0 0;padding-left:20px}._tipsList_1ckir_273 li{margin-bottom:4px;color:#475569;font-size:13px;line-height:1.5}._tipsList_1ckir_273 li:last-child{margin-bottom:0}._practiceCard_1ckir_290{background:#fff;border:1px solid #e5e7eb;border-radius:14px;padding:20px;display:flex;flex-direction:column;gap:14px}._practiceHeader_1ckir_300{display:flex;align-items:flex-start;gap:12px}._practiceIcon_1ckir_306{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#2563eb,#7c3aed);color:#fff;font-size:15px;flex-shrink:0}._practiceTitle_1ckir_319{margin:0 0 4px;font-size:15px;font-weight:600;color:#1f2937}._practiceDesc_1ckir_326{margin:0;font-size:12px;line-height:1.5;color:#6b7280}._solutionToggle_1ckir_334{padding:12px 16px;background:#f8fafc;border:1px solid #e5e7eb;border-radius:10px;text-align:center}._solutionHint_1ckir_342{display:block;margin-top:6px;font-size:12px}._navigation_1ckir_349{display:flex;justify-content:space-between;align-items:center;gap:12px}._navigationCenter_1ckir_356{font-size:13px;color:#6b7280;background:#fff;border:1px solid #e5e7eb;border-radius:20px;padding:4px 16px}._editorContainer_1ckir_366{border-radius:12px;overflow:hidden;background:#1e1e1e;border:1px solid #374151;box-shadow:0 2px 12px #0000001f}._toolbar_1ckir_374{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;background:#252526;border-bottom:1px solid #3c3c3c}._toolbarLeft_1ckir_383{display:flex;align-items:center;gap:6px}._fileIcon_1ckir_389{font-size:14px}._toolbarTitle_1ckir_393{color:#ccc;font-size:13px;font-weight:500}._langTag_1ckir_399{background:#3c3c3c;color:#8b8b8b;padding:2px 6px;border-radius:4px;font-size:10px;text-transform:uppercase}._readonlyTag_1ckir_408{background:#5a4a1f;color:#ffd666;padding:1px 6px;border-radius:4px;font-size:10px;margin-left:4px}._monacoWrap_1ckir_417{background:#1e1e1e}._resultPanel_1ckir_422{border-top:1px solid #3c3c3c;background:#1e1e1e}._resultHeader_1ckir_427{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;background:#252526;border-bottom:1px solid #3c3c3c;flex-wrap:wrap;gap:8px}._resultTitle_1ckir_438{color:#ccc;font-size:13px}._resultTitle_1ckir_438 .anticon{margin-right:4px}._resultSuccess_1ckir_447 ._resultTitle_1ckir_438{color:#4caf50}._resultError_1ckir_451 ._resultTitle_1ckir_438{color:#f87171}._resultDuration_1ckir_455{color:gray;font-size:11px}._resultStats_1ckir_460{display:flex;gap:4px}._statPassed_1ckir_465{color:#4caf50;font-size:12px;margin-right:6px}._statFailed_1ckir_471{color:#f87171;font-size:12px}._resultOutput_1ckir_476{margin:0;padding:12px 14px;color:#d4d4d4;font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:12px;line-height:1.4;white-space:pre-wrap;word-break:break-all;max-height:200px;overflow:auto}._resultSuccess_1ckir_447 ._resultOutput_1ckir_476{color:#4caf50}._resultError_1ckir_451 ._resultOutput_1ckir_476{color:#f87171}._quizCard_1ckir_498{border-radius:14px;border:1px solid #e5e7eb}._quizItem_1ckir_503{padding:12px 0;border-bottom:1px dashed #e5e7eb}._quizItem_1ckir_503:last-child{border-bottom:none;padding-bottom:0}._quizQuestion_1ckir_513{margin:0 0 10px;font-size:13px;font-weight:500;color:#1f2937;line-height:1.6}._quizIndex_1ckir_521{display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;margin-right:6px;background:#2563eb;color:#fff;border-radius:50%;font-size:11px;font-weight:600}._quizFeedback_1ckir_535{margin-top:8px;font-size:12px}._quizCorrect_1ckir_540{color:#059669}._quizWrong_1ckir_544{color:#dc2626}._quizSubmit_1ckir_548{margin-top:8px}._notFound_1ckir_553{text-align:center;padding:80px 24px;background:#fff;border:1px solid #e5e7eb;border-radius:14px}._notFound_1ckir_553 h2{margin-bottom:24px;color:#6b7280}@media(max-width:991px){._workbench_1ckir_64{flex-direction:column}._sidebar_1ckir_71{position:static;width:100%;max-height:none}._lessonList_1ckir_112{flex-direction:row;flex-wrap:wrap;overflow-x:auto}._lessonItem_1ckir_139{flex-shrink:0}._chapterOverview_1ckir_9{flex-direction:column;align-items:flex-start;text-align:left}._chapterOverviewRight_1ckir_55{flex-direction:row;align-items:center;gap:16px}}@media(max-width:767px){._chapterTitle_1ckir_26{font-size:18px}._navigation_1ckir_349{flex-wrap:wrap;justify-content:center}}:root,body,#root{height:100%}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,PingFang SC,Microsoft YaHei,sans-serif}