:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}@media (width<=1024px){:root{font-size:16px}}@media 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var(--primary-dark)}._ghost_1i43p_53{color:var(--text-secondary);background-color:#0000}._ghost_1i43p_53:hover:not(:disabled){background-color:var(--border-color)}._sm_1i43p_62{border-radius:var(--radius-lg);padding:8px 16px;font-size:14px}._icon_1i43p_67{border-radius:50%;padding:8px}._inputWrapper_11cem_1{width:100%;position:relative}._input_11cem_1{background-color:var(--bg-color);border-radius:var(--radius-xl);width:100%;color:var(--text-primary);border:1px solid #0000;outline:none;padding:14px 16px;font-family:inherit;font-size:16px;transition:all .2s}._input_11cem_1:focus{border-color:var(--primary);background-color:var(--surface-color);box-shadow:0 0 0 4px var(--primary-light)}._input_11cem_1::placeholder{color:var(--text-tertiary)}._withIcon_11cem_29{padding-left:48px}._iconWrapper_11cem_33{color:var(--text-tertiary);pointer-events:none;display:flex;position:absolute;top:50%;left:16px;transform:translateY(-50%)}._container_10xbr_1{background-color:var(--primary-light);min-height:100vh;font-family:var(--font-family);display:flex}._leftPanel_10xbr_8{background:linear-gradient(135deg, var(--primary), var(--primary-dark));color:var(--surface-color);text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;padding:40px;display:none}@media (width>=1024px){._leftPanel_10xbr_8{display:flex}}._logo_10xbr_26{align-items:center;gap:16px;margin-bottom:24px;font-size:48px;font-weight:900;display:flex}._mascot_10xbr_35{background-color:var(--surface-color);color:var(--primary-dark);box-shadow:var(--shadow-lg);border-radius:24px;padding:16px;transform:rotate(-10deg)}._rightPanel_10xbr_44{flex:1;justify-content:center;align-items:center;padding:24px;display:flex}._formCard_10xbr_52{background-color:var(--surface-color);border-radius:var(--radius-2xl);width:100%;max-width:400px;box-shadow:var(--shadow-xl);padding:40px}._header_10xbr_61{text-align:center;margin-bottom:32px}._header_10xbr_61 h2{color:var(--text-primary);margin-bottom:8px;font-size:28px;font-weight:800}._header_10xbr_61 p{color:var(--text-secondary)}._tabs_10xbr_77{background-color:var(--bg-color);border-radius:var(--radius-xl);margin-bottom:32px;padding:4px;display:flex}._tab_10xbr_77{text-align:center;border-radius:var(--radius-lg);cursor:pointer;color:var(--text-tertiary);flex:1;padding:12px;font-weight:700;transition:all .2s}._tab_10xbr_77._active_10xbr_96{background-color:var(--surface-color);color:var(--text-primary);box-shadow:var(--shadow-sm)}._form_10xbr_52{flex-direction:column;gap:16px;display:flex}._roleSelector_10xbr_108{gap:16px;margin-bottom:8px;display:flex}._roleOption_10xbr_114{border:2px solid var(--border-color);border-radius:var(--radius-xl);cursor:pointer;color:var(--text-tertiary);flex-direction:column;flex:1;align-items:center;gap:8px;padding:16px;transition:all .2s;display:flex}._roleOption_10xbr_114._active_10xbr_96{border-color:var(--primary);color:var(--primary);background-color:var(--primary-light)}._backBtn_10xbr_134{margin-bottom:24px}._layout_d8rpw_1{background-color:var(--bg-color);height:100vh;display:flex;overflow:hidden}._sidebar_d8rpw_8{background-color:var(--surface-color);border-right:1px solid var(--border-color);flex-direction:column;width:280px;transition:all .3s;display:flex}._sidebarHeader_d8rpw_17{border-bottom:1px solid var(--border-color);align-items:center;gap:12px;padding:24px;display:flex}._mascot_d8rpw_25{background-color:var(--primary-light);color:var(--primary-dark);border-radius:12px;padding:8px}._brand_d8rpw_32{color:var(--text-primary);font-size:20px;font-weight:800}._nav_d8rpw_38{flex-direction:column;flex:1;gap:8px;padding:16px;display:flex;overflow-y:auto}._navItem_d8rpw_47{border-radius:var(--radius-lg);color:var(--text-secondary);cursor:pointer;text-align:left;background:0 0;border:none;align-items:center;gap:12px;width:100%;padding:12px 16px;font-weight:600;transition:all .2s;display:flex}._navItem_d8rpw_47:hover{background-color:var(--secondary-light);color:var(--secondary-dark)}._navItem_d8rpw_47._active_d8rpw_68{background-color:var(--primary-light);color:var(--primary-dark)}._sidebarFooter_d8rpw_73{border-top:1px solid var(--border-color);padding:16px}._profileCard_d8rpw_78{background-color:var(--bg-color);border-radius:var(--radius-lg);align-items:center;gap:12px;padding:12px;display:flex}._avatar_d8rpw_87{background-color:var(--primary);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;font-weight:700;display:flex}._profileInfo_d8rpw_99{flex:1;overflow:hidden}._name_d8rpw_104{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-weight:700;overflow:hidden}._role_d8rpw_112{color:var(--text-tertiary);text-transform:capitalize;font-size:12px}._logoutBtn_d8rpw_118{color:var(--text-tertiary);cursor:pointer;background:0 0;border:none;border-radius:50%;padding:8px}._logoutBtn_d8rpw_118:hover{background-color:var(--accent-red-light);color:var(--accent-red)}._mainContent_d8rpw_132{flex-direction:column;flex:1;display:flex;position:relative;overflow-y:auto}._topbar_d8rpw_140{background-color:var(--surface-color);border-bottom:1px solid var(--border-color);z-index:10;align-items:center;height:64px;padding:0 24px;display:flex;position:sticky;top:0}._pageTitle_d8rpw_152{color:var(--text-primary);font-size:20px;font-weight:700}._contentBody_d8rpw_158{flex:1;padding:24px}._treeContainer_17wew_1{flex-direction:column;gap:8px;display:flex}._folderItemWrapper_17wew_7{flex-direction:column;gap:4px;display:flex}._folderItem_17wew_7{border-radius:var(--radius-lg);cursor:pointer;background-color:var(--surface-color);border:1px solid #0000;justify-content:space-between;align-items:center;padding:10px 12px;transition:all .2s;display:flex}._folderItem_17wew_7:hover{background-color:var(--secondary-light);border-color:var(--secondary-medium)}._folderItem_17wew_7._active_17wew_30{background-color:var(--primary-light);border-color:var(--primary)}._folderInfo_17wew_35{flex:1;align-items:center;gap:12px;display:flex}._expandBtn_17wew_42{color:var(--text-tertiary);cursor:pointer;border-radius:var(--radius-md);background:0 0;border:none;justify-content:center;align-items:center;padding:4px;display:flex}._expandBtn_17wew_42:hover{background-color:var(--border-color);color:var(--text-primary)}._folderTitle_17wew_59{color:var(--text-primary);font-size:15px;font-weight:600}._folderActions_17wew_65{opacity:0;align-items:center;gap:4px;transition:opacity .2s;display:flex}._folderItem_17wew_7:hover ._folderActions_17wew_65{opacity:1}._actionBtn_17wew_77{color:var(--text-tertiary);cursor:pointer;border-radius:var(--radius-md);background:0 0;border:none;justify-content:center;align-items:center;padding:6px;display:flex}._actionBtn_17wew_77:hover{background-color:var(--border-color);color:var(--text-primary)}._actionBtn_17wew_77._danger_17wew_94:hover{background-color:var(--accent-red-light);color:var(--accent-red)}._childrenContainer_17wew_99{position:relative}._childrenContainer_17wew_99:before{content:"";background-color:var(--border-color);width:1px;position:absolute;top:0;bottom:0;left:20px}._studioContainer_gnwd2_1{background-color:var(--bg-color);flex-direction:column;height:100%;display:flex}._header_gnwd2_8{background-color:var(--surface-color);border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:16px 24px;display:flex}._titleArea_gnwd2_17{align-items:center;gap:16px;display:flex}._titleInput_gnwd2_23{color:var(--text-primary);border-radius:var(--radius-md);background:0 0;border:none;outline:none;padding:4px 8px;font-size:20px;font-weight:700;transition:background-color .2s}._titleInput_gnwd2_23:focus{background-color:var(--secondary-light)}._actions_gnwd2_39{gap:12px;display:flex}._workspace_gnwd2_44{flex:1;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px;padding:24px;display:grid;overflow-y:auto}._cardItem_gnwd2_53{background-color:var(--surface-color);border-radius:var(--radius-xl);box-shadow:var(--shadow-md);flex-direction:column;display:flex;overflow:hidden}._cardHeader_gnwd2_62{background-color:var(--primary-light);border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:12px 16px;display:flex}._wordInput_gnwd2_71{color:var(--primary-dark);background:0 0;border:none;outline:none;width:100%;font-size:18px;font-weight:700}._deleteBtn_gnwd2_81{color:var(--text-tertiary);cursor:pointer;background:0 0;border:none}._deleteBtn_gnwd2_81:hover{color:var(--accent-red)}._cardBody_gnwd2_91{flex-direction:column;gap:12px;padding:16px;display:flex}._field_gnwd2_98{flex-direction:column;gap:4px;display:flex}._field_gnwd2_98 label{color:var(--text-tertiary);text-transform:uppercase;font-size:12px;font-weight:700}._fieldInput_gnwd2_111{border:1px solid var(--border-color);border-radius:var(--radius-md);resize:vertical;outline:none;width:100%;padding:8px 12px;font-family:inherit;font-size:14px}._fieldInput_gnwd2_111:focus{border-color:var(--primary)}._mediaSection_gnwd2_126{background-color:var(--bg-color);border-top:1px solid var(--border-color);gap:12px;padding:12px 16px;display:flex}._mediaPreview_gnwd2_134{border-radius:var(--radius-md);background-color:var(--border-color);background-position:50%;background-size:cover;flex-shrink:0;width:60px;height:60px}._mediaActions_gnwd2_144{flex-direction:column;flex:1;gap:8px;display:flex}._audioBtn_gnwd2_151{background:var(--surface-color);border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;color:var(--text-secondary);align-items:center;gap:8px;padding:6px 12px;font-size:13px;font-weight:700;display:flex}._audioBtn_gnwd2_151:hover{background-color:var(--secondary-light);color:var(--secondary-dark)}._audioBtn_gnwd2_151._hasAudio_gnwd2_170{background-color:var(--secondary);color:#fff;border-color:var(--secondary)}._addCardBtn_gnwd2_176{border:2px dashed var(--border-color);border-radius:var(--radius-xl);color:var(--text-tertiary);cursor:pointer;background-color:#0000;flex-direction:column;justify-content:center;align-items:center;gap:12px;min-height:200px;font-weight:700;transition:all .2s;display:flex}._addCardBtn_gnwd2_176:hover{border-color:var(--primary);color:var(--primary);background-color:var(--primary-light)}._container_1tu35_1{flex-direction:column;justify-content:center;align-items:center;height:100%;padding:24px;display:flex}._scene_1tu35_10{perspective:1000px;width:320px;height:440px;margin-bottom:32px}._card_1tu35_17{width:100%;height:100%;transform-style:preserve-3d;cursor:pointer;transition:transform .6s cubic-bezier(.4,0,.2,1);position:relative}._card_1tu35_17._isFlipped_1tu35_26{transform:rotateY(180deg)}._cardFace_1tu35_30{backface-visibility:hidden;border-radius:var(--radius-2xl);width:100%;height:100%;box-shadow:var(--shadow-lg);background-color:var(--surface-color);border:4px solid var(--primary-light);text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:24px;display:flex;position:absolute}._cardBack_1tu35_51{border-color:var(--secondary-light);transform:rotateY(180deg)}._word_1tu35_56{color:var(--primary-dark);margin-bottom:12px;font-size:36px;font-weight:900}._phonetic_1tu35_63{color:var(--text-tertiary);margin-bottom:24px;font-size:18px}._meaning_1tu35_69{color:var(--secondary-dark);margin-bottom:16px;font-size:28px;font-weight:700}._pos_1tu35_76{background-color:var(--secondary-light);color:var(--secondary-dark);border-radius:20px;margin-bottom:16px;padding:4px 12px;font-size:14px}._image_1tu35_85{border-radius:var(--radius-xl);object-fit:cover;background-color:var(--bg-color);width:120px;height:120px;margin-bottom:24px}._actions_1tu35_94{gap:16px;width:320px;display:flex}._actions_1tu35_94 button{flex:1}._container_1lslg_1{background-color:var(--primary-light);flex-direction:column;justify-content:center;align-items:center;height:100%;padding:24px;display:flex;position:relative}._flashRed_1lslg_12{animation:.3s _flashRed_1lslg_12}._flashGreen_1lslg_16{animation:.3s _flashGreen_1lslg_16}@keyframes _flashRed_1lslg_12{0%{background-color:var(--primary-light)}50%{background-color:var(--accent-red-light)}to{background-color:var(--primary-light)}}@keyframes _flashGreen_1lslg_16{0%{background-color:var(--primary-light)}50%{background-color:#e8f5e9}to{background-color:var(--primary-light)}}._header_1lslg_32{justify-content:space-between;align-items:center;display:flex;position:absolute;top:24px;left:24px;right:24px}._scoreBoard_1lslg_42{gap:16px;display:flex}._scoreItem_1lslg_47{background-color:var(--surface-color);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm);align-items:center;gap:8px;padding:8px 16px;font-weight:700;display:flex}._timer_1lslg_58{color:var(--accent-red);margin-bottom:24px;font-size:48px;font-weight:900}._timerWarning_1lslg_65{animation:1s infinite _pulse_1lslg_1}@keyframes _pulse_1lslg_1{0%{transform:scale(1)}50%{transform:scale(1.1)}to{transform:scale(1)}}._questionCard_1lslg_75{background-color:var(--surface-color);border-radius:var(--radius-2xl);box-shadow:var(--shadow-xl);text-align:center;width:100%;max-width:600px;padding:32px}._questionText_1lslg_85{color:var(--text-primary);margin-bottom:24px;font-size:24px;font-weight:700}._media_1lslg_92{justify-content:center;margin-bottom:24px;display:flex}._qImage_1lslg_98{object-fit:cover;border-radius:var(--radius-xl);width:160px;height:160px}._optionsGrid_1lslg_105{grid-template-columns:1fr 1fr;gap:16px;display:grid}._optionBtn_1lslg_111{background-color:var(--bg-color);border:2px solid var(--border-color);border-radius:var(--radius-xl);cursor:pointer;padding:20px;font-size:18px;font-weight:700;transition:all .2s}._optionBtn_1lslg_111:hover{border-color:var(--primary);background-color:var(--primary-light)}._optionBtn_1lslg_111._correct_1lslg_127{color:#fff;background-color:#4caf50;border-color:#4caf50}._optionBtn_1lslg_111._wrong_1lslg_133{background-color:var(--accent-red);color:#fff;border-color:var(--accent-red)}:root{--primary-light:#fff4ec;--primary-medium:#ffe8d6;--primary:#ffb366;--primary-dark:#f93;--secondary-light:#e6f5f4;--secondary-medium:#e0f0ef;--secondary:#66b2ad;--secondary-dark:#08544e;--accent-red-light:#fff0f0;--accent-red:#d93025;--accent-indigo-light:#eef2ff;--accent-indigo:#4f46e5;--bg-color:#fafafa;--surface-color:#fff;--text-primary:#1f2937;--text-secondary:#4b5563;--text-tertiary:#9ca3af;--border-color:#e5e7eb;--font-family:"Helvetica Neue", Helvetica, Arial, sans-serif;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -2px #0000000d;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--radius-2xl:24px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-color);color:var(--text-primary);-webkit-font-smoothing:antialiased;line-height:1.6}.flex-center{justify-content:center;align-items:center;display:flex}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:.3s ease-out fadeIn}.animate-slide-up{animation:.3s ease-out slideUp}.custom-scrollbar::-webkit-scrollbar{width:6px}.custom-scrollbar::-webkit-scrollbar-track{background:0 0}.custom-scrollbar::-webkit-scrollbar-thumb{background-color:var(--border-color);border-radius:20px}.perspective-1000{perspective:1000px}.preserve-3d{transform-style:preserve-3d}.backface-hidden{backface-visibility:hidden}.rotate-y-180{transform:rotateY(180deg)}