:root{--sp-1: 4px;--sp-2: 8px;--sp-3: 12px;--sp-4: 16px;--sp-6: 24px;--sp-8: 32px;--sp-12: 48px;--sp-16: 64px;--r-sm: 6px;--r-md: 12px;--r-lg: 14px;--r-full: 9999px;--font-base: "Inter", system-ui, -apple-system, sans-serif;--font-display: "Inter", system-ui, -apple-system, sans-serif;--text-display: 2.2rem;--text-h1: 1.7rem;--text-h2: 1.35rem;--text-body: 1.05rem;--text-sm: .95rem;--text-label: .75rem;--max-col: 480px}:root[data-theme=style-1]{--color-primary: #6f8a6d;--color-primary-dk: #516650;--color-accent-pink: #b5848a;--color-accent-olive: #7f8d72;--color-accent-blue: #9da9c3;--color-success: #4c8b6b;--color-error: #a55b56;--color-warning: #c9932b;--color-bg: #f5efe2;--color-surface: #fffaf0;--color-surface-soft: #efe7d7;--color-text: #2d2a25;--color-text-muted: #6f675d;--color-border: #d8cfbf;--shadow-sm: 0 1px 2px rgba(25, 25, 22, .08);--shadow-md: 0 10px 24px rgba(25, 25, 22, .14);--shadow-glow: 0 0 0 3px rgba(111, 138, 109, .2);--page-bg-image: radial-gradient(circle at 8% -8%, rgba(181, 132, 138, .15), transparent 32%), radial-gradient(circle at 88% -2%, rgba(111, 138, 109, .14), transparent 30%)}:root[data-theme=style-2]{--color-primary: #62d2ff;--color-primary-dk: #33b5e9;--color-accent-pink: #bf5fff;--color-accent-olive: #4aa58d;--color-accent-blue: #75e6ff;--color-success: #3ddc97;--color-error: #ff7a90;--color-warning: #f4c957;--color-bg: #0f1322;--color-surface: #161d32;--color-surface-soft: #1d2640;--color-text: #e8f3ff;--color-text-muted: #9fb4d1;--color-border: #2c3b5d;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .35);--shadow-md: 0 14px 28px rgba(0, 0, 0, .36);--shadow-glow: 0 0 0 3px rgba(98, 210, 255, .2);--page-bg-image: radial-gradient(circle at 10% -12%, rgba(191, 95, 255, .18), transparent 38%), radial-gradient(circle at 90% 0%, rgba(98, 210, 255, .14), transparent 34%)}:root[data-theme=style-3]{--color-primary: #1f4b99;--color-primary-dk: #173976;--color-accent-pink: #a43d6d;--color-accent-olive: #657b6b;--color-accent-blue: #4e78b9;--color-success: #2d7a5f;--color-error: #9b3a3a;--color-warning: #b7822f;--color-bg: #f4f2ee;--color-surface: #ffffff;--color-surface-soft: #ece8e1;--color-text: #1d2430;--color-text-muted: #616c7d;--color-border: #d2d9e1;--shadow-sm: 0 1px 2px rgba(13, 23, 40, .08);--shadow-md: 0 12px 24px rgba(13, 23, 40, .11);--shadow-glow: 0 0 0 3px rgba(31, 75, 153, .17);--page-bg-image: radial-gradient(circle at 12% -10%, rgba(164, 61, 109, .1), transparent 34%), radial-gradient(circle at 88% -4%, rgba(31, 75, 153, .1), transparent 32%)}:root[data-theme=style-4],:root:not([data-theme]){--color-primary: #7da6d9;--color-primary-dk: #5f86bf;--color-accent-pink: #8c7bd9;--color-accent-olive: #7a9bbd;--color-accent-blue: #9fc2ea;--color-success: #5f8cae;--color-error: #b8746e;--color-warning: #fbbf24;--color-bg: #f8f4ec;--color-surface: #fffdf8;--color-surface-soft: #f4efe6;--color-text: #2d3748;--color-text-muted: #6e7a8b;--color-border: #d8dce4;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .08);--shadow-md: 0 10px 24px rgba(15, 23, 42, .12);--shadow-glow: 0 0 0 3px rgba(125, 166, 217, .2);--page-bg-image: radial-gradient(circle at 15% -10%, rgba(159, 194, 234, .28), transparent 36%), radial-gradient(circle at 85% -5%, rgba(125, 166, 217, .2), transparent 34%)}:root[data-theme=style-5]{--color-primary: #8f5ce6;--color-primary-dk: #7446c5;--color-accent-pink: #d06ccf;--color-accent-olive: #7d8fc8;--color-accent-blue: #a7b7ff;--color-success: #4fa486;--color-error: #b95d73;--color-warning: #f0ba45;--color-bg: #f8f6ff;--color-surface: #ffffff;--color-surface-soft: #f2ecff;--color-text: #2f2545;--color-text-muted: #746b8d;--color-border: #ded3ff;--shadow-sm: 0 1px 2px rgba(37, 25, 61, .08);--shadow-md: 0 12px 24px rgba(37, 25, 61, .13);--shadow-glow: 0 0 0 3px rgba(143, 92, 230, .2);--page-bg-image: radial-gradient(circle at 12% -12%, rgba(208, 108, 207, .14), transparent 36%), radial-gradient(circle at 88% -4%, rgba(143, 92, 230, .16), transparent 34%)}@media(prefers-color-scheme:dark){:root:not([data-theme]){--color-bg: #151a22;--color-surface: #1c2531;--color-surface-soft: #232e3d;--color-border: #334053;--color-text: #ebf1f9;--color-text-muted: #a8b7ca;--page-bg-image: radial-gradient(circle at 12% -10%, rgba(129, 102, 234, .2), transparent 36%), radial-gradient(circle at 88% -4%, rgba(106, 178, 255, .16), transparent 34%)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}*,*: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:var(--font-base);background:var(--color-bg);color:var(--color-text);line-height:1.5;background-image:var(--page-bg-image, none)}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}button,input,select,textarea{font-family:inherit}._base_1wj3s_1{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:var(--sp-3) var(--sp-6);border-radius:var(--r-md);font-family:var(--font-base);font-size:var(--text-body);font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .12s ease,box-shadow .15s ease,opacity .12s ease;-webkit-user-select:none;user-select:none}._base_1wj3s_1:disabled{opacity:.45;cursor:not-allowed;transform:none!important;box-shadow:none!important}._base_1wj3s_1:focus-visible{outline:2px solid var(--color-primary);outline-offset:3px}._primary_1wj3s_29{background:linear-gradient(160deg,var(--color-primary),var(--color-primary-dk));color:#fffdf9;box-shadow:0 8px 18px #7da6d94d}._primary_1wj3s_29:not(:disabled):hover{transform:translateY(-1px);box-shadow:0 10px 24px #7da6d95c}._secondary_1wj3s_40{background:var(--color-surface);color:var(--color-text);border-color:var(--color-border);box-shadow:var(--shadow-sm)}._secondary_1wj3s_40:not(:disabled):hover{border-color:var(--color-primary);background:#7da6d914}._ghost_1wj3s_52{background:transparent;color:var(--color-text-muted);border-color:var(--color-border)}._ghost_1wj3s_52:not(:disabled):hover{color:var(--color-text);border-color:var(--color-accent-blue);background:#38bdf812}._page_dsew5_1{min-height:100vh;background:var(--color-bg)}._main_dsew5_6{max-width:860px;margin:0 auto;padding:var(--sp-8) var(--sp-4) var(--sp-12)}._hero_dsew5_12{margin-bottom:var(--sp-6)}._heroTopRow_dsew5_16{display:flex;justify-content:space-between;align-items:center;gap:var(--sp-3);margin-bottom:var(--sp-2)}._kicker_dsew5_24{margin:0;font-size:var(--text-label);text-transform:uppercase;letter-spacing:.08em;color:var(--color-text-muted);font-weight:700}._themePicker_dsew5_33{display:inline-flex;align-items:center;gap:var(--sp-2);border:1px solid var(--color-border);background:var(--color-surface-soft);border-radius:var(--r-full);padding:6px 10px}._themeLabel_dsew5_43{font-size:var(--text-label);text-transform:uppercase;letter-spacing:.08em;color:var(--color-text-muted);font-weight:700}._themeSelect_dsew5_51{border:0;background:transparent;color:var(--color-text);font-size:var(--text-sm);outline:none;max-width:210px}._title_dsew5_60{margin:0;font-family:var(--font-display);font-size:2.4rem;font-weight:650;color:var(--color-text)}._subtitle_dsew5_68{margin:var(--sp-2) 0 0;color:var(--color-text-muted)}._loading_dsew5_73{color:var(--color-text-muted)}._grid_dsew5_77{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:var(--sp-4)}._card_dsew5_83{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--r-md);padding:var(--sp-4);box-shadow:var(--shadow-sm)}._cardLocked_dsew5_91{opacity:.75}._cardTitle_dsew5_95{margin:0 0 var(--sp-1);font-size:1.1rem;color:var(--color-text)}._cardMeta_dsew5_101{margin:0 0 var(--sp-3);font-size:var(--text-label);color:var(--color-text-muted);letter-spacing:.08em}._cardFooter_dsew5_108 button{width:100%}._wrap_kfu2d_1{display:inline-flex;align-items:center;gap:var(--sp-1);padding:var(--sp-1) var(--sp-3);border-radius:var(--r-full);font-weight:700;font-size:var(--text-sm)}._active_kfu2d_11{background:#f973161f;color:var(--color-accent-olive)}._cold_kfu2d_16{background:var(--color-border);color:var(--color-text-muted)}._icon_kfu2d_21{width:10px;height:10px;border-radius:9999px;background:currentColor;box-shadow:0 0 0 5px #f973161f}._count_kfu2d_29{font-size:var(--text-sm)}._track_u4nb5_1{width:100%;background:var(--color-border);border-radius:var(--r-full);overflow:hidden}._lesson_u4nb5_8{height:8px}._xp_u4nb5_12{height:12px}._fill_u4nb5_16{height:100%;border-radius:var(--r-full);background:linear-gradient(90deg,var(--color-primary),var(--color-accent-pink));transition:width .4s ease}._page_qd32j_1{min-height:100vh;background:var(--color-bg)}._center_qd32j_6{display:flex;justify-content:center;align-items:center;min-height:60vh;padding:var(--sp-4)}._error_qd32j_14{color:var(--color-error)}._header_qd32j_18{background:color-mix(in srgb,var(--color-surface) 82%,transparent);border-bottom:1px solid var(--color-border);padding:var(--sp-4) var(--sp-4) var(--sp-3);position:sticky;top:0;z-index:10;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}._headerInner_qd32j_28{max-width:var(--max-col);margin:0 auto;display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--sp-3)}._courseTitleWrap_qd32j_37{display:flex;flex-direction:column;gap:2px}._courseTitle_qd32j_37{font-family:var(--font-display);font-size:1.95rem;font-weight:650;margin:0;color:var(--color-text);letter-spacing:-.015em}._headerStats_qd32j_52{display:flex;align-items:center;gap:var(--sp-2)}._changeCourseBtn_qd32j_58{border:1px solid var(--color-border);background:var(--color-surface-soft);color:var(--color-text);border-radius:var(--r-full);font-size:var(--text-label);font-weight:700;text-transform:uppercase;letter-spacing:.06em;padding:6px 10px;cursor:pointer}._xpChip_qd32j_71{display:inline-flex;align-items:center;gap:var(--sp-1);padding:var(--sp-1) var(--sp-3);border-radius:var(--r-full);background:#7c3aed1f;color:var(--color-primary);font-weight:700;font-size:var(--text-sm);border:1px solid rgba(124,58,237,.24)}._overallProgress_qd32j_84{max-width:var(--max-col);margin:0 auto}._prefRow_qd32j_89{max-width:var(--max-col);margin:var(--sp-2) auto 0;display:flex;gap:var(--sp-2);align-items:center;flex-wrap:wrap}._themePicker_qd32j_98{display:inline-flex;align-items:center;gap:var(--sp-2);border:1px solid var(--color-border);background:var(--color-surface-soft);border-radius:var(--r-full);padding:5px 10px}._themePickerLabel_qd32j_108{font-size:var(--text-label);font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--color-text-muted)}._themeSelect_qd32j_116{border:0;background:transparent;color:var(--color-text);font-size:var(--text-sm);outline:none;max-width:190px}._prefToggle_qd32j_125{border:1px solid var(--color-border);background:var(--color-surface-soft);color:var(--color-text-muted);border-radius:var(--r-full);padding:5px 10px;font-size:var(--text-label);font-weight:700;letter-spacing:.05em;text-transform:uppercase;cursor:pointer}._progressLabel_qd32j_138{font-size:var(--text-label);color:var(--color-text-muted);margin:var(--sp-1) 0 0}._continueWrap_qd32j_144{max-width:var(--max-col);margin:var(--sp-6) auto var(--sp-3);padding:0 var(--sp-4)}._continueWrap_qd32j_144 button{width:100%}._labWrap_qd32j_154{max-width:var(--max-col);margin:0 auto var(--sp-2);padding:0 var(--sp-4)}._labDetails_qd32j_160{border:1px dashed var(--color-border);border-radius:var(--r-md);background:color-mix(in srgb,var(--color-surface) 70%,transparent);padding:var(--sp-2)}._labSummary_qd32j_167{cursor:pointer;color:var(--color-text-muted);font-size:var(--text-sm);font-weight:600;padding:var(--sp-2)}._mapWrap_qd32j_175{max-width:var(--max-col);margin:0 auto;padding:var(--sp-4) var(--sp-4) var(--sp-8);display:flex;flex-direction:column;gap:var(--sp-6)}._unit_qd32j_184{display:flex;flex-direction:column;gap:var(--sp-3);background:color-mix(in srgb,var(--color-surface) 80%,transparent);border:1px solid var(--color-border);border-left:4px solid color-mix(in srgb,var(--color-primary) 55%,var(--color-border));border-radius:var(--r-md);padding:var(--sp-3) var(--sp-3) var(--sp-2)}._unitTitle_qd32j_195{font-size:var(--text-sm);font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--color-text-muted);margin:0;border-bottom:1px solid color-mix(in srgb,var(--color-border) 75%,transparent);padding-bottom:var(--sp-2)}._lessonList_qd32j_206{display:flex;flex-direction:column;gap:var(--sp-2);padding-left:var(--sp-1)}._lessonNode_qd32j_213{display:flex;align-items:center;gap:var(--sp-3);padding:var(--sp-3) var(--sp-4);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--r-md);cursor:pointer;text-align:left;font-family:var(--font-base);width:100%;transition:border-color .16s ease,box-shadow .16s ease,transform .1s;box-shadow:var(--shadow-sm)}._lessonNode_qd32j_213:not(:disabled):hover{border-color:var(--color-primary);box-shadow:0 14px 30px #0208146b;transform:translateY(-1px)}._lessonNode_qd32j_213:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}._done_qd32j_240{border-color:color-mix(in srgb,var(--color-success) 45%,var(--color-border));background:#16a34a0f}._current_qd32j_245{border-color:var(--color-primary);box-shadow:var(--shadow-glow),var(--shadow-sm)}._locked_qd32j_250{opacity:.45;cursor:not-allowed}._nodeIcon_qd32j_255{font-size:.65rem;width:36px;height:22px;border-radius:var(--r-full);border:1px solid var(--color-border);background:var(--color-surface-soft);font-weight:700;letter-spacing:.03em;text-transform:uppercase;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--color-primary)}._done_qd32j_240 ._nodeIcon_qd32j_255{color:var(--color-success);border-color:color-mix(in srgb,var(--color-success) 45%,var(--color-border));background:#16a34a14}._locked_qd32j_250 ._nodeIcon_qd32j_255{color:var(--color-text-muted);background:var(--color-surface-soft)}._nodeLabel_qd32j_283{flex:1;font-size:1rem;font-weight:650;color:var(--color-text)}._nodeCount_qd32j_290{font-size:var(--text-label);color:var(--color-text-muted);flex-shrink:0}._bottomSpacer_qd32j_296{height:80px}._banner_h8h7z_1{padding:var(--sp-4) var(--sp-6);border-radius:var(--r-lg);border-top:4px solid;animation:_slideUp_h8h7z_1 .2s ease-out}@keyframes _slideUp_h8h7z_1{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}._correct_h8h7z_19{background:#22c55e1a;border-color:var(--color-success)}._incorrect_h8h7z_24{background:#f973161a;border-color:var(--color-error)}._verdict_h8h7z_29{font-size:var(--text-h2);font-weight:700;margin:0 0 var(--sp-2)}._correct_h8h7z_19 ._verdict_h8h7z_29{color:var(--color-success)}._incorrect_h8h7z_24 ._verdict_h8h7z_29{color:var(--color-error)}._explanation_h8h7z_43{font-size:var(--text-body);color:var(--color-text);margin:0 0 var(--sp-2);line-height:1.6}._source_h8h7z_50{font-size:var(--text-label);color:var(--color-text-muted);margin:0 0 var(--sp-4)}._continueBtn_h8h7z_56{display:inline-flex;align-items:center;justify-content:center;padding:var(--sp-3) var(--sp-6);min-height:44px;border-radius:var(--r-md);font-weight:600;font-size:var(--text-body);border:none;cursor:pointer;transition:opacity .12s;width:100%;margin-top:var(--sp-2)}._correct_h8h7z_19 ._continueBtn_h8h7z_56{background:var(--color-success);color:#fff}._incorrect_h8h7z_24 ._continueBtn_h8h7z_56{background:var(--color-error);color:#fff}._continueBtn_h8h7z_56:hover{opacity:.88}._wrap_1eg1j_1{width:100%;overflow-x:auto;border-radius:var(--r-md);background:var(--color-surface);border:1px solid var(--color-border);padding:var(--sp-4)}._wrap_1eg1j_1 svg{display:block;max-width:100%;height:auto;margin:0 auto}._error_1eg1j_17{font-size:var(--text-sm);color:var(--color-error);padding:var(--sp-3);border:1px dashed var(--color-error);border-radius:var(--r-sm)}._placeholder_1eg1j_25{font-size:var(--text-sm);color:var(--color-text-muted);padding:var(--sp-3)}._page_76njz_1{min-height:100vh;display:flex;flex-direction:column;background:var(--color-bg)}._topBar_76njz_8{display:flex;align-items:center;gap:var(--sp-3);padding:var(--sp-3) var(--sp-4);background:color-mix(in srgb,var(--color-surface) 90%,transparent);border-bottom:1px solid var(--color-border);position:sticky;top:0;z-index:10;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}._exitBtn_76njz_21{background:none;border:none;font-size:1.1rem;cursor:pointer;color:var(--color-text-muted);padding:var(--sp-1);border-radius:var(--r-sm);flex-shrink:0;transition:color .12s}._exitBtn_76njz_21:hover{color:var(--color-error)}._exitBtn_76njz_21:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}._lessonTitle_76njz_42{font-size:var(--text-sm);font-weight:600;color:var(--color-text-muted);flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}._progressWrap_76njz_52{flex:1}._counter_76njz_56{font-size:var(--text-sm);font-weight:600;color:var(--color-text-muted);flex-shrink:0}._content_76njz_63{flex:1;max-width:var(--max-col);margin:0 auto;padding:var(--sp-6) var(--sp-4);width:100%;display:flex;flex-direction:column;gap:20px}._introCard_76njz_75{background:var(--color-surface);border:1px solid 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