:root{color-scheme:light;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,Arial,sans-serif;background:#f4f7fb;color:#1f2340;--bg: #f4f7fb;--panel: #ffffff;--panel-soft: #f6fbff;--line: #dfe8f2;--text: #1f2340;--muted: #718198;--primary: #785EEA;--primary-dark: #6247d4;--cyan: #33E2DE;--cyan-soft: #e7fffd;--shadow: 0 18px 45px rgba(68, 80, 120, .12);--soft-shadow: 0 10px 26px rgba(68, 80, 120, .1);--topbar-h: clamp(64px, 3.8vw, 92px);--shell-pad-x: clamp(16px, 1.7vw, 64px);--shell-pad-y: clamp(12px, 1.1vw, 32px);--app-min-width: 744px}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{min-height:100%;margin:0}body{background:var(--bg);min-width:var(--app-min-width);overflow-x:auto}#root{min-width:var(--app-min-width)}a{color:inherit;text-decoration:none}code{color:var(--primary)}.appShell{height:100vh;overflow:hidden;display:grid;grid-template-rows:var(--topbar-h) 1fr}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:0 var(--shell-pad-x);background:#fcfefff0;border-bottom:1px solid rgba(168,181,205,.35);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);box-shadow:0 10px 30px #4a55780f}.brand{display:flex;align-items:center;gap:14px;min-width:220px}.brandMark{width:42px;height:42px;border-radius:16px;display:grid;place-items:center;color:#fff;font-weight:900;background:linear-gradient(135deg,var(--cyan),var(--primary));box-shadow:0 10px 24px #5750dc47}.topbarTitle{font-size:19px;line-height:1.05;font-weight:850;color:var(--primary);letter-spacing:.2px}.topbarMeta{margin-top:2px;color:var(--muted);font-size:11px}.nav{display:flex;align-items:center;justify-content:center;gap:8px;flex:1;flex-wrap:wrap}.topAiNavShell{position:relative;flex:1 1 0;min-width:0;max-width:100%;z-index:1}.topAiNavShell:before,.topAiNavShell:after{content:"";position:absolute;top:0;bottom:0;width:28px;z-index:2;pointer-events:none;opacity:0;transition:opacity .22s ease}.topAiNavShell:before{left:0;background:linear-gradient(90deg,rgba(252,254,255,1) 0%,rgba(252,254,255,.08) 72%,transparent 100%)}.topAiNavShell:after{right:0;background:linear-gradient(270deg,rgba(252,254,255,1) 0%,rgba(252,254,255,.08) 72%,transparent 100%)}.topAiNavShell--left:before,.topAiNavShell--right:after{opacity:1}.topAiNav{justify-content:flex-start;align-items:center;overflow-x:auto;overflow-y:hidden;flex:1 1 auto;flex-wrap:nowrap;width:100%;min-width:0;padding:4px 2px;background:transparent;border:none;scrollbar-width:none;-ms-overflow-style:none;-webkit-overflow-scrolling:touch;touch-action:pan-x;overscroll-behavior-x:contain;scroll-behavior:smooth;scroll-snap-type:x proximity}.topAiNav::-webkit-scrollbar{display:none}.topAiNav 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rgba(215,225,238,.95);border-radius:28px;padding:26px;box-shadow:var(--shadow)}.sectionTitle{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;font-weight:850;font-size:19px;color:var(--primary)}.row{display:grid;grid-template-columns:1fr 1fr;gap:20px}.row3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.aiLayout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;align-items:start}.creatorGrid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(340px,.85fr);gap:22px;align-items:start}@media (max-width: 980px){.appShell{grid-template-rows:var(--topbar-h) 1fr}.topbar{position:sticky;align-items:center;height:var(--topbar-h);padding:0 14px;gap:10px;flex-wrap:nowrap}.brand,.topActions{min-width:0}.brand{flex:0 0 132px;gap:8px}.brandMark{width:32px;height:32px;border-radius:12px}.topbarTitle{font-size:14px}.topbarMeta{font-size:9px}.topActions{flex:0 0 auto;gap:8px}.pointsBalancePill{padding:7px 9px;font-size:11px}.topAiNavShell{flex:1 1 0;min-width:0}.topAiNavShell:before,.topAiNavShell:after{width:22px}.topAiNav{padding:2px 0 8px}.chip{padding:8px 14px;font-size:12px}.container{padding:14px 16px}.row,.row3,.aiLayout,.creatorGrid{grid-template-columns:1fr}}label{display:block;margin-bottom:7px;color:#3b455d;font-size:13px;font-weight:750}input,select,textarea{width:100%;padding:14px 16px;border-radius:16px;border:2px solid #dbe4ef;background:#f8fcff;color:var(--text);outline:none;font:inherit;font-size:15px;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease}input:focus,select:focus,textarea:focus{border-color:var(--cyan);background:#fff;box-shadow:0 0 0 4px #42e5dd29}textarea{min-height:122px;resize:none}button{cursor:pointer;border:1px solid #dbe4ef;background:#fff;color:var(--text);padding:12px 18px;border-radius:16px;font:inherit;font-size:15px;font-weight:750;transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease,background 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#42e5dd2e}.optionCard.purple.active{color:#fff;border-color:transparent;background:linear-gradient(135deg,#8661f6,#5730c6);box-shadow:0 12px 24px #6842da3d}.optionIcon{font-size:22px;line-height:1}.featureGrid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px}.featureCard{min-height:156px;display:flex;flex-direction:column;justify-content:space-between;border-radius:24px;padding:22px;background:#fff;border:1px solid #dfe8f2;box-shadow:var(--soft-shadow)}.featureCard:hover{border-color:#42e5dda6}.featureIcon{width:44px;height:44px;border-radius:15px;display:grid;place-items:center;color:#fff;font-weight:900;background:linear-gradient(135deg,var(--cyan),var(--primary))}.historyCard{overflow:hidden;border-radius:18px;background:#fff;border:1px solid #e3ebf5;box-shadow:var(--soft-shadow)}.historyThumb{height:112px;background:radial-gradient(circle at 25% 25%,rgba(66,229,221,.9),transparent 22%),radial-gradient(circle at 75% 20%,rgba(104,66,218,.7),transparent 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rgba(255,255,255,.14)}.loginBrandMark{width:62px;height:62px;display:grid;place-items:center;border-radius:22px;color:var(--primary);background:#fff;font-size:22px;font-weight:950;box-shadow:0 18px 36px #00000029}.loginProductName{font-size:36px;line-height:1;font-weight:950}.loginProductSub{margin-top:6px;color:#ffffffb8;font-weight:750}.loginBrandPanel p{position:relative;z-index:1;max-width:320px;margin:4px 0 0;color:#ffffffc7;line-height:1.7}.loginCard{min-height:clamp(420px,42vh,560px);align-self:center;padding:clamp(30px,2.3vw,52px)}.loginCardHeader{margin-bottom:24px}.loginCardHeader h1{margin:8px 0 6px;color:var(--text);font-size:30px;letter-spacing:-.02em}.loginCardHeader p{margin:0;color:var(--muted)}.loginNotice{margin-bottom:18px;padding:12px 14px;border-radius:16px;color:#47328c;background:#785eea1a;border:1px solid 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22px;color:#42526c;font-size:15px;line-height:1.65;font-weight:650}.loginGateOk{width:100%;min-height:48px;border-radius:14px;font-weight:850}.fieldGroup{margin-bottom:16px}.loginSubmitRow{margin-top:22px}.loginSubmitBtn{width:100%;min-height:52px;border-radius:16px;font-size:16px;font-weight:850}.appCreatePage{height:100%;display:flex;flex-direction:column}@keyframes creatingSpin{to{transform:rotate(360deg)}}.creatingTaskCardSpinner{animation:creatingSpin .85s linear infinite}.creatingPage{max-width:880px;margin:0 auto}.creatingPageShell{padding:0;overflow:hidden;display:flex;flex-direction:column}.creatingPageHero{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:22px 24px 18px;background:linear-gradient(135deg,#785eea12,#42e5dd0f);border-bottom:1px solid rgba(215,225,238,.85)}.creatingPageHeroText{min-width:0;flex:1}.creatingPageTitle{margin:0 0 8px;font-size:24px;font-weight:900;letter-spacing:-.02em;color:#1c2434}.creatingPageSubtitle{margin:0;font-size:14px;line-height:1.6;max-width:540px}.creatingPageGhostRefresh{flex-shrink:0;display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:999px;border:1px solid rgba(120,94,234,.22);background:#ffffffeb;color:#5b4ab0;font:inherit;font-size:14px;font-weight:800;cursor:pointer;box-shadow:0 6px 16px #4450780f;transition:border-color .16s ease,background .16s ease,color .16s ease}.creatingPageGhostRefresh:hover:not(:disabled){transform:none;border-color:#785eea66;background:#fff;color:#4a3a9a}.creatingPageGhostRefresh:disabled{opacity:.55;cursor:not-allowed}@media (max-width: 560px){.creatingPageHero{flex-direction:column;align-items:stretch}.creatingPageGhostRefresh{width:100%;justify-content:center}}.creatingPageError{margin:0 24px;padding:12px 16px;border-radius:16px;background:#d84f6314;border:1px solid rgba(216,79,99,.2)}.creatingPageBody{min-height:220px;padding:22px 24px 26px}.creatingPageTaskList{display:flex;flex-direction:column;gap:16px}.creatingTaskCard{border-radius:24px;padding:0;overflow:hidden;background:#fffffff0;border:1px solid rgba(215,225,238,.95);box-shadow:var(--soft-shadow)}.creatingTaskCardMain{display:grid;grid-template-columns:minmax(160px,220px) minmax(0,1fr);gap:0;align-items:stretch}@media (max-width: 720px){.creatingTaskCardMain{grid-template-columns:1fr}}.creatingTaskCardThumb{position:relative;min-height:160px;background:linear-gradient(145deg,#eef2fb,#e4e9f5);overflow:hidden}.creatingTaskCardThumb.hasMedia{background:#0f1419}.creatingTaskCardMedia{width:100%;height:100%;min-height:180px;max-width:100%;max-height:100%;object-fit:cover;display:block}.creatingTaskCardThumbFallback{height:100%;min-height:180px;display:grid;place-items:center;color:#785eea8c}.creatingTaskCardThumbBadge{position:absolute;left:12px;bottom:12px;display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;font-size:12px;font-weight:850;color:#fff;background:#785eeaeb;box-shadow:0 8px 20px #0003}.creatingTaskCardBody{padding:22px 22px 18px;display:flex;flex-direction:column;gap:10px}.creatingTaskCardPills{display:flex;flex-wrap:wrap;gap:8px}.creatingTaskPill{display:inline-flex;align-items:center;padding:5px 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0;font-size:20px;font-weight:900;color:#1c2434;letter-spacing:-.02em}.creatingTaskCardMeta{font-size:13px;color:var(--muted);line-height:1.5;font-weight:650}.creatingTaskCardProgress{font-size:14px;font-weight:800;color:#42526c;line-height:1.5}.creatingTaskCardProgress.isActive{color:var(--primary)}.creatingTaskCardPrompt{margin:0;font-size:13px;line-height:1.55;color:#5a6478;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.creatingTaskCardFoot{display:flex;flex-direction:column;gap:6px;margin-top:auto;padding-top:4px;font-size:12px}.creatingTaskCardFail{font-size:12px;font-weight:750}.creatingTaskCardActions{display:flex;flex-wrap:wrap;gap:12px;padding:14px 22px 20px;border-top:1px solid rgba(215,225,238,.85);background:#f8fafda6}.creatingTaskCardActionBtn{display:inline-flex;align-items:center;gap:8px}.creatingTaskCardActionLink{margin-left:auto;display:inline-flex;align-items:center;padding:10px 18px;border-radius:999px;font-size:14px;font-weight:800;text-decoration:none;color:#fff;background:linear-gradient(135deg,#7a52f4,#5730c6);box-shadow:0 10px 22px #6842da38;transition:transform .16s ease,box-shadow .16s ease}.creatingTaskCardActionLink:hover{transform:translateY(-1px);box-shadow:0 14px 26px #6842da47}@media (max-width: 720px){.creatingTaskCardActionLink{margin-left:0;width:100%;justify-content:center}}.creatingEmpty{text-align:center;padding:36px 20px 28px;max-width:480px;margin:0 auto;border-radius:20px;border:1px dashed rgba(215,225,238,.95);background:#f8fafda6}.creatingEmptyIcon{width:64px;height:64px;margin:0 auto 18px;border-radius:20px;display:grid;place-items:center;background:#785eea1a;color:var(--primary)}.creatingEmptyTitle{font-size:20px;font-weight:900;color:#1c2434;margin-bottom:10px}.creatingEmptyDesc{font-size:14px;line-height:1.65;max-width:400px;margin:0 auto 22px}.creatingEmptyCta{display:inline-flex;align-items:center;justify-content:center;padding:12px 26px;border-radius:999px;font-size:15px;font-weight:850;text-decoration:none;color:#fff;background:linear-gradient(135deg,#7a52f4,#5730c6);box-shadow:0 12px 24px #6842da3d}.studioHero{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 22px;border-radius:30px;background:#fffffff0;border:1px solid rgba(215,225,238,.9);box-shadow:var(--soft-shadow)}.studioStatus{min-width:128px;display:grid;justify-items:end;gap:5px;color:var(--muted);font-size:12px}.studioStatus b{color:var(--primary);font-size:18px}.studioLayout{flex:1;min-height:0;display:grid;grid-template-columns:minmax(0,1.08fr) minmax(520px,.92fr);gap:clamp(16px,1.1vw,28px);align-items:stretch}.studioCanvas{min-height:0;min-width:0;display:flex;flex-direction:column}.parameterPanel{flex:1;min-height:0;min-width:0;overflow:hidden;display:flex;flex-direction:column;gap:clamp(12px,.75vw,22px);padding:clamp(16px,1.15vw,28px);border-radius:32px;background:#fffffff5;border:1px solid rgba(215,225,238,.95);box-shadow:var(--shadow)}.categoryRail{flex-shrink:0;display:flex;flex-direction:row;flex-wrap:nowrap;align-items:center;gap:10px;min-width:0;max-width:100%;overflow-x:auto;overflow-y:hidden;overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch;padding:2px 2px 6px;background:transparent;border:none;scrollbar-width:thin}.categoryRail::-webkit-scrollbar{height:6px}.categoryRail::-webkit-scrollbar-thumb{border-radius:999px;background:#97a4be66}.categoryToken{flex:0 0 auto;white-space:nowrap;min-width:128px;min-height:54px;border-radius:999px;padding:0 22px;font-size:15px;border:1px solid rgba(51,226,222,.42);background:#ffffffc7;box-shadow:none}.categoryToken:hover{transform:none;border-color:#33e2dea6;background:#fff;box-shadow:none}.categoryToken.active{color:#123136;border-color:#33e2def2;background:#33e2de29;box-shadow:none}.createLoadingPanel{flex:1;min-height:0;display:grid;place-items:center;align-content:center;gap:clamp(16px,1vw,26px);padding:clamp(28px,3vw,80px);border-radius:26px;background:radial-gradient(circle at 50% 26%,rgba(51,226,222,.16),transparent 34%),linear-gradient(180deg,#ffffffc7,#f8fbfff5);border:1px solid rgba(215,225,238,.82);color:var(--text);text-align:center}.createLoadingGlow{width:clamp(54px,3.4vw,82px);height:clamp(54px,3.4vw,82px);display:grid;place-items:center;border-radius:999px;background:#785eea14;box-shadow:0 18px 46px #785eea2e}.createLoadingGlow span{width:46%;height:46%;border-radius:999px;border:3px solid rgba(120,94,234,.18);border-top-color:var(--cyan);animation:createLoadingSpin .9s linear infinite}.createLoadingText{display:grid;gap:6px}.createLoadingText b{font-size:clamp(16px,1vw,22px)}.createLoadingText small{color:var(--muted);font-weight:800}.createLoadingSkeleton{width:min(78%,520px);display:grid;gap:10px}.createLoadingSkeleton i{height:clamp(12px,.72vw,18px);border-radius:999px;background:linear-gradient(90deg,#e1e9f6c7,#f5f8fdf2,#e1e9f6c7);background-size:220% 100%;animation:createLoadingShimmer 1.2s ease-in-out infinite}.createLoadingSkeleton i:nth-child(2){width:76%;margin:0 auto;animation-delay:.12s}.createLoadingSkeleton i:nth-child(3){width:58%;margin:0 auto;animation-delay:.24s}@keyframes createLoadingSpin{to{transform:rotate(360deg)}}@keyframes createLoadingShimmer{0%{background-position:120% 0}to{background-position:-120% 0}}.promptStudioCard{position:relative;flex:1;min-height:0;min-width:0;display:flex;flex-direction:column;gap:6px;padding:0;border-radius:28px;background:transparent;border:none;box-shadow:none}.promptStudioCard 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rgba(120,140,170,.85);background:#f9fbfff5;color:#334058;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;font:inherit}.musicUploadZone:hover{border-color:#33e2dea6;background:#33e2de0f}.musicUploadZoneTitle{font-size:14px;font-weight:900}.musicUploadZoneFile{font-size:12px;color:var(--muted);font-weight:750;word-break:break-all;text-align:center}.musicInlineAction--secondary{background:#33e2deeb}.musicModeRail{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}.musicModeToken{min-height:76px;padding:12px 14px;border-radius:18px;border:1px solid rgba(173,187,211,.55);background:#fff;color:#50607a;text-align:left;cursor:pointer}.musicModeToken.active{border-color:#33e2deb3;background:linear-gradient(135deg,#33e2de2e,#785eea1f);color:#172033}.musicModeToken b,.musicModeToken span{display:block}.musicModeToken b{margin-bottom:5px;font-size:14px;font-weight:950}.musicModeToken span{font-size:12px;line-height:1.45;color:var(--muted)}.musicFormGrid{flex:1;min-height:0;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px;overflow:auto;padding-right:2px}.musicFormGrid.musicFormGrid--columns1{grid-template-columns:minmax(0,1fr)}.musicFormGrid.musicFormGrid--columns2,.musicFormGrid.musicFormGrid--cover{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.musicField{min-width:0;padding:14px;border-radius:20px;background:#fffffff5;border:1px solid rgba(215,225,238,.95)}.musicFieldPrompt,.musicLyricsField{display:flex;flex-direction:column;min-height:240px}.musicFieldHead{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}.musicFieldHead b,.musicAssistCard b{color:#1f2a44;font-size:14px;font-weight:950}.musicFieldHead span,.musicAssistCard p{color:var(--muted);font-size:12px;font-weight:750}.musicField textarea,.musicField input{width:100%;box-sizing:border-box;border-radius:14px;border:1px solid rgba(199,211,230,.92);background:#f9fbff;color:var(--text);font:inherit;outline:none}.musicField textarea{flex:1;min-height:160px;resize:vertical;padding:12px 14px;font-size:14px;line-height:1.62}.musicField input{min-height:42px;padding:0 12px}.musicAudioInputRow{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px}.musicAudioPreview{width:100%;margin-top:10px}.musicInlineAction{margin-top:10px;min-height:38px;padding:0 14px;border-radius:999px;border:none;background:var(--primary);color:#fff;font-weight:900;cursor:pointer}.musicInlineAction:disabled{cursor:not-allowed;opacity:.48}.musicAssistCard{align-self:start}.musicFeatureField{grid-column:1 / -1}.musicFormGrid--cover .musicFeatureField{grid-column:auto}.creatingTaskNotice{flex-shrink:0;display:grid;gap:8px;padding:14px 16px;border-radius:20px;color:#334058;background:#33e2de14;border:1px solid rgba(51,226,222,.28)}.creatingTaskNotice div{display:flex;align-items:center;justify-content:space-between;gap:12px}.creatingTaskNotice b{color:#162234;font-size:14px;font-weight:900}.creatingTaskNotice span,.creatingTaskNotice em{color:var(--muted);font-size:12px;font-style:normal;font-weight:750}.videoStudioCard{flex:1;min-height:0;min-width:0;display:flex;flex-direction:column;gap:clamp(8px,.55vw,14px);overflow:hidden}.videoStudioCard--mathShortClip{gap:8px}.mathShortClipBlock{display:flex;flex-direction:column;gap:8px;min-height:0;min-width:0;padding:10px 12px 12px;border-radius:18px;background:#fffffffa;border:1px solid rgba(215,225,238,.95);box-shadow:inset 0 1px #ffffffe6}.mathShortClipHead{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;padding:0 2px 2px;color:#1f2a44}.mathShortClipHead b{font-size:14px;font-weight:900}.mathShortClipHead 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