:root{--bg:#f6f7f9;--panel:#fff;--text:#202124;--muted:#6f737b;--line:#e4e6ea;--accent:#2783de;--accent2:#e5f2fc;--danger:#d94f45;--shadow:0 1px 2px rgba(0,0,0,.04),0 10px 30px rgba(0,0,0,.05)}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans SC",sans-serif;color:var(--text);background:var(--bg)}button,input,select{font:inherit}button{cursor:pointer}.app{max-width:1440px;margin:auto;padding:24px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.brand{display:flex;gap:12px;align-items:center}.logo{width:40px;height:40px;border-radius:12px;background:linear-gradient(145deg,#2783de,#7d62e8);display:grid;place-items:center;color:#fff;font-size:20px;box-shadow:var(--shadow)}h1{font-size:22px;margin:0;letter-spacing:-.02em}.sub{font-size:13px;color:var(--muted);margin-top:2px}.badge{font-size:12px;border:1px solid var(--line);padding:5px 9px;border-radius:999px;background:#fff;color:var(--muted)}.workspace{display:grid;grid-template-columns:minmax(360px,1fr) 420px;gap:20px}.stage-panel,.control-panel{background:var(--panel);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}.stage-panel{padding:20px;min-height:690px;display:flex;flex-direction:column}.stage-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.stage-title{font-weight:650}.stage-actions{display:flex;gap:8px}.icon-btn,.btn{min-height:42px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--text);padding:0 14px;display:inline-flex;align-items:center;justify-content:center;gap:8px}.icon-btn:hover,.btn:hover{background:#f7f8fa}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover{filter:brightness(.96)}.btn:disabled{opacity:.5;cursor:not-allowed}.canvas-wrap{flex:1;min-height:500px;border-radius:12px;background-color:#eceef2;background-image:linear-gradient(45deg,#dfe2e7 25%,transparent 25%),linear-gradient(-45deg,#dfe2e7 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#dfe2e7 75%),linear-gradient(-45deg,transparent 75%,#dfe2e7 75%);background-size:24px 24px;background-position:0 0,0 12px,12px -12px,-12px 0;display:grid;place-items:center;overflow:hidden;position:relative}.preview-shell{width:min(480px,80%);aspect-ratio:1;position:relative;filter:drop-shadow(0 14px 35px rgba(28,36,48,.18))}.preview-shell.round canvas{border-radius:50%}.preview-shell.squircle canvas{border-radius:22%}.preview-shell.square canvas{border-radius:0}.preview-shell canvas{display:block;width:100%;height:100%;background:transparent}.empty{position:absolute;inset:0;display:grid;place-items:center;text-align:center;color:var(--muted);padding:30px}.empty.hidden{display:none}.upload-drop{max-width:300px}.upload-icon{width:64px;height:64px;margin:0 auto 16px;border-radius:18px;background:#fff;display:grid;place-items:center;font-size:28px;border:1px solid var(--line)}.upload-drop strong{color:var(--text);display:block;font-size:16px;margin-bottom:6px}.upload-drop p{font-size:13px;line-height:1.6;margin:0}.stage-foot{display:flex;justify-content:space-between;align-items:center;margin-top:16px;gap:14px}.transport{display:flex;align-items:center;gap:10px}.play{width:44px;padding:0}.time{font-variant-numeric:tabular-nums;font-size:13px;color:var(--muted);min-width:90px}.progress{height:5px;background:#eceef2;border-radius:10px;flex:1;overflow:hidden}.progress>i{display:block;height:100%;width:0;background:var(--accent)}.control-panel{height:690px;display:flex;flex-direction:column;overflow:hidden}.tabs{display:flex;flex:0 0 auto;border-bottom:1px solid var(--line);padding:0 10px}.tab{flex:1;border:0;background:transparent;padding:16px 4px;color:var(--muted);border-bottom:2px solid transparent;font-size:14px}.tab.active{color:var(--accent);border-bottom-color:var(--accent);font-weight:650}.panes{overflow:auto;flex:1 1 auto;padding:18px;scrollbar-width:thin}.pane{display:none}.pane.active{display:block}.section{margin-bottom:22px}.section:last-child{margin-bottom:0}.section-title{font-size:13px;font-weight:700;margin:0 0 12px;display:flex;justify-content:space-between;align-items:center}.hint{font-size:12px;color:var(--muted);font-weight:400}.upload-row{display:grid;grid-template-columns:1fr auto;gap:8px}.file-btn input{display:none}.field{margin:12px 0}.field-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:7px;font-size:13px}.value{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}.range-row{display:grid;grid-template-columns:1fr 56px;gap:10px;align-items:center}input[type=range]{width:100%;accent-color:var(--accent)}input[type=number],select,input[type=text]{height:40px;border:1px solid var(--line);border-radius:8px;padding:0 10px;background:#fff;width:100%;outline:none}input:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent2)}.seg{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:6px}.seg button{height:38px;border:1px solid var(--line);background:#fff;border-radius:8px;color:var(--muted)}.seg button.active{border-color:#a9d0f5;background:var(--accent2);color:#1266b5;font-weight:600}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}.effect-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.effect-card{display:flex;align-items:center;gap:9px;padding:10px;border:1px solid var(--line);border-radius:9px;background:#fff;min-height:46px;font-size:13px;user-select:none}.effect-card:hover{border-color:#bdc3cc}.effect-card.on{background:var(--accent2);border-color:#9bc7f1;color:#125fa7}.effect-card input{display:none}.effect-card b{font-size:17px;width:24px;text-align:center}.color-row{display:grid;grid-template-columns:44px 1fr;gap:9px}.color-row input[type=color]{width:44px;height:40px;border:1px solid var(--line);border-radius:8px;padding:3px;background:#fff}.switch-row{display:flex;justify-content:space-between;align-items:center;font-size:13px;padding:8px 0}.switch{width:42px;height:24px;background:#d8dbe0;border-radius:20px;position:relative;transition:.2s}.switch:after{content:"";position:absolute;width:18px;height:18px;left:3px;top:3px;border-radius:50%;background:#fff;transition:.2s;box-shadow:0 1px 3px #888}.switch.on{background:var(--accent)}.switch.on:after{transform:translateX(18px)}.export-card{border:1px solid var(--line);border-radius:11px;padding:14px;background:#fafafa}.summary{font-size:12px;line-height:1.7;color:var(--muted);margin:12px 0}.export-progress{display:none;margin-top:12px}.export-progress.show{display:block}.export-progress .bar{height:7px;border-radius:8px;background:#e6e8ec;overflow:hidden}.export-progress i{display:block;width:0;height:100%;background:linear-gradient(90deg,#2783de,#7d62e8)}.export-status{font-size:12px;color:var(--muted);margin-top:7px}.export-status.warning{color:#a85b16;background:#fff4e5;border:1px solid #f1cf9d;border-radius:8px;padding:9px}.notice{font-size:12px;color:#8a5a1f;background:#fff6e8;border:1px solid #f0d6ad;border-radius:8px;padding:10px;line-height:1.5}.kbd{font:11px ui-monospace,SFMono-Regular,Menlo,monospace;border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;padding:2px 5px;background:#fff}.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);background:#202124;color:#fff;border-radius:9px;padding:11px 16px;font-size:13px;opacity:0;pointer-events:none;transition:.25s;z-index:9}.toast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:980px){.app{padding:16px}.workspace{grid-template-columns:1fr}.control-panel{height:auto;max-height:none}.stage-panel{min-height:620px}.canvas-wrap{min-height:440px}}@media(max-width:520px){.topbar{align-items:flex-start}.badge{display:none}.stage-panel{padding:12px;min-height:520px}.canvas-wrap{min-height:350px}.preview-shell{width:88%}.stage-foot{flex-wrap:wrap}.progress{order:3;flex-basis:100%}.tabs{overflow:auto}.tab{min-width:72px}.panes{padding:14px}.grid2{grid-template-columns:1fr}.effect-grid{grid-template-columns:1fr 1fr}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* 2026 mobile editor redesign */
:root{--bg:#f3f4f6;--panel:#fff;--text:#17181a;--muted:#71757d;--line:#e5e7eb;--accent:#2f8bd8;--accent2:#eef7ff;--shadow:0 8px 28px rgba(35,43,55,.07)}
body{background:linear-gradient(180deg,#f8f9fa,#f1f3f5)}.app{max-width:1380px}.topbar{background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:18px;padding:14px 18px;box-shadow:0 3px 16px rgba(0,0,0,.04)}.logo{background:#202226;border-radius:13px;box-shadow:none}.workspace{grid-template-columns:minmax(460px,1.15fr) minmax(400px,.85fr);align-items:start}.stage-panel,.control-panel{border-color:#e1e4e8;border-radius:22px}.stage-panel{position:sticky;top:24px}.control-panel{height:760px}.tabs{padding:7px 10px;background:#f7f8fa;gap:3px;border-bottom:1px solid var(--line);overflow-x:auto;scrollbar-width:none;scroll-snap-type:x proximity}.tabs::-webkit-scrollbar{display:none}.tab{flex:0 0 auto;min-width:54px;padding:10px 11px;border:0!important;border-radius:8px;color:#656a73;scroll-snap-align:center;white-space:nowrap}.tab:hover{background:#eef0f3;color:#34373c}.tab.active{background:#e7f3fd;color:#1872b9;box-shadow:inset 0 0 0 1px #c4e0f6;font-weight:700}.panes{padding:20px}.section{padding:18px;border:1px solid var(--line);border-radius:16px;background:#fff;margin-bottom:16px}.section-title{font-size:15px}.effect-grid,.border-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.effect-card,.border-card{position:relative;min-height:74px;border:1px solid var(--line);border-radius:14px;background:#fff;padding:14px 50px 14px 14px;display:flex;align-items:flex-start;gap:10px;text-align:left;color:var(--text);font-size:14px}.effect-card b,.border-card b{width:34px;height:34px;border-radius:10px;background:#f2f4f6;display:grid;place-items:center;font-size:17px}.effect-card:after{content:'';position:absolute;right:14px;top:16px;width:34px;height:20px;border-radius:20px;background:#d9dde3;box-shadow:inset 0 0 0 1px rgba(0,0,0,.02)}.effect-card:before{content:'';position:absolute;z-index:1;right:29px;top:19px;width:14px;height:14px;border-radius:50%;background:#fff;transition:.18s;box-shadow:0 1px 3px rgba(0,0,0,.18)}.effect-card.on{background:#f0f8ff;border-color:#83bae5;color:#17202a;box-shadow:inset 0 0 0 1px #b9dcf7}.effect-card.on:after{background:var(--accent)}.effect-card.on:before{transform:translateX(14px)}.border-card{padding-right:14px;align-items:center}.border-card.active{background:#f0f8ff;border-color:#78b5e4;box-shadow:inset 0 0 0 1px #b6daf5}.settings-card{background:#fafbfc}.field{margin:16px 0}.field-head{font-size:14px}.seg button{height:46px;border-radius:12px}.export-card{border:0;padding:0;background:transparent}.btn.primary{background:#248bd8}.canvas-wrap{border-radius:16px}.stage-title{font-size:16px}
@media(max-width:980px){body{background:#eef0f3}.app{padding:0 0 28px}.topbar{position:sticky;top:0;z-index:20;border-radius:0;border-width:0 0 1px;padding:10px 16px;margin:0;background:rgba(255,255,255,.96);backdrop-filter:blur(14px)}.logo{width:38px;height:38px}.sub{font-size:12px}.workspace{display:block}.stage-panel{position:sticky;top:59px;z-index:10;border-radius:0;border-width:0 0 1px;min-height:0;height:340px;padding:12px 16px;background:#fff;box-shadow:0 7px 22px rgba(20,30,45,.08)}.stage-head{margin-bottom:9px}.stage-actions .icon-btn{min-height:36px;padding:0 11px}.canvas-wrap{min-height:0;height:240px}.preview-shell{width:min(225px,67vw)}.empty{padding:10px}.upload-icon{width:46px;height:46px;margin-bottom:8px}.upload-drop p{display:none}.upload-drop strong{font-size:14px}.upload-drop .btn{min-height:38px;margin-top:8px!important}.stage-foot{margin-top:9px}.control-panel{height:auto;min-height:620px;margin:14px 10px 0;border-radius:24px 24px 18px 18px;overflow:visible;box-shadow:0 -3px 24px rgba(25,35,48,.08)}.tabs{position:sticky;top:399px;z-index:9;border-radius:24px 24px 0 0;padding:10px 8px}.panes{overflow:visible;padding:14px}.section{padding:16px}.effect-card,.border-card{min-height:82px}.topbar .badge{display:none}}
@media(max-width:520px){h1{font-size:18px}.brand{gap:10px}.stage-panel{height:322px}.canvas-wrap{height:220px}.preview-shell{width:min(205px,62vw)}.control-panel{margin-top:12px}.tabs{top:381px}.tab{font-size:13px;min-width:56px}.panes{padding:12px}.section{border-radius:18px;padding:14px}.effect-grid,.border-grid{gap:9px}.effect-card,.border-card{min-height:78px;padding-left:11px;font-size:13px}.effect-card b,.border-card b{width:30px;height:30px}.grid2{grid-template-columns:1fr 1fr}.notice{font-size:11px}.stage-foot .progress{order:initial;flex-basis:auto}.time{min-width:82px;font-size:12px}}

.float-resize{display:none}.float-note{display:none}
@media(max-width:980px){.stage-panel{position:fixed!important;top:70px;left:12px;width:calc(100vw - 24px);height:316px!important;z-index:40;border:1px solid #dfe3e8!important;border-radius:20px!important;box-shadow:0 14px 40px rgba(20,30,45,.2)!important;touch-action:none}.stage-head{cursor:grab;user-select:none}.stage-head:active{cursor:grabbing}.float-resize{display:grid;place-items:center;position:absolute;right:3px;bottom:3px;width:28px;height:28px;border-radius:8px;color:#7a8088;background:rgba(255,255,255,.86);border:1px solid #dfe3e8;cursor:nwse-resize;z-index:4}.canvas-wrap{height:calc(100% - 92px)!important}.control-panel{margin-top:342px!important}.tabs{top:0!important}.preview-shell{width:min(205px,62vw);max-height:100%}.stage-actions{pointer-events:auto}}
.preview-shell.geom-active canvas{border-radius:0!important}

.ai-hero{background:linear-gradient(145deg,#f3edff,#edf7ff);border-color:#ddd4f5}.ai-badge{font-size:11px;padding:4px 7px;border-radius:999px;background:#fff;color:#7258a6;border:1px solid #ddd4f5}.ai-copy{font-size:13px;line-height:1.65;color:var(--muted);margin:4px 0 0}.ai-key-row,.ai-model-row{display:grid;grid-template-columns:1fr auto;gap:8px}.ai-key-row .btn,.ai-model-row .btn{min-width:78px;height:40px;min-height:40px}.ai-model-row .btn{min-width:96px}.pane textarea{width:100%;resize:vertical;min-height:132px;border:1px solid var(--line);border-radius:12px;padding:12px;background:#fff;color:var(--text);outline:none;line-height:1.6}.pane textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent2)}.ai-presets{display:flex;flex-wrap:wrap;gap:7px;margin:10px 0 14px}.ai-presets button{border:1px solid var(--line);background:#fff;color:var(--muted);border-radius:999px;padding:7px 10px;font-size:12px}.ai-presets button:hover{border-color:#9ec9ed;color:#1a70b5;background:#f1f8fe}.ai-check{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--muted);margin:10px 0 14px}.ai-check input{width:17px;height:17px;accent-color:var(--accent)}.ai-clear-row{display:flex;gap:8px;margin-top:16px}.ai-clear-row .btn.danger{color:#a23a32;border-color:#f0c9c6;background:#fff7f6}.ai-clear-row .btn.danger:hover{background:#fff0ee;border-color:#e4aaa5}.ai-store-note{font-size:12px;line-height:1.6;color:var(--muted);margin-top:8px}.ai-store-note b{color:var(--text);font-weight:600}
#aiHeaders{min-height:74px;height:auto;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px}
.ai-req-preview{margin-top:14px;padding:12px;border:1px solid var(--line);border-radius:10px;background:#fafbfc}.ai-req-title{font-size:12px;font-weight:600;color:var(--text);margin-bottom:8px;display:flex;justify-content:space-between;align-items:center}.ai-req-title .hint{font-weight:400}.ai-req-meta{font-size:12px;color:#1666a8;background:#eef7ff;border-radius:6px;padding:6px 9px;margin-bottom:8px;word-break:break-all;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.ai-req-block{margin-top:8px}.ai-req-label{font-size:11px;color:var(--muted);margin-bottom:4px}.ai-req-pre{display:block;margin:0;padding:9px 11px;border-radius:8px;background:#f0f2f5;border:1px solid var(--line);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;line-height:1.55;color:var(--text);white-space:pre-wrap;word-break:break-all;max-height:220px;overflow:auto}
@keyframes aiPulse{0%{opacity:1}50%{opacity:.25}100%{opacity:1}}
.ai-status.busy{animation:aiPulse 1.2s ease-in-out infinite}.ai-run{width:100%;background:linear-gradient(135deg,#2783de,#7766df)!important}.ai-status{margin-top:10px;padding:10px 12px;border-radius:10px;background:#f5f6f8;color:var(--muted);font-size:12px;line-height:1.5;min-height:38px}.ai-status.busy{color:#1666a8;background:#eef7ff}.ai-status.ok{color:#26714a;background:#edf8f1}.ai-status.error{color:#a23a32;background:#fff0ee}@media(max-width:520px){.ai-key-row,.ai-model-row{grid-template-columns:1fr}.ai-key-row .btn,.ai-model-row .btn{width:100%}}