:root{color-scheme:dark;--bg:#0b0d12;--card:#141824;--text:#f4f7fb;--muted:#98a2b3;--line:#283044;--accent:#5b8cff;--accent2:#7dd3fc;--danger:#ff7171}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:"Microsoft YaHei UI","Segoe UI",Arial,sans-serif;background:radial-gradient(circle at top left,#1a2542 0,#0b0d12 34%,#050609 100%);color:var(--text)}.shell{width:min(1220px,calc(100% - 32px));margin:28px auto 48px}.hero{display:flex;justify-content:space-between;align-items:flex-end;gap:18px;margin-bottom:18px}.eyebrow{margin:0 0 8px;color:var(--accent2);letter-spacing:.12em;font-size:13px}h1{margin:0;font-size:34px;letter-spacing:-.03em}.sub{margin:10px 0 0;color:var(--muted);max-width:720px;line-height:1.7}.announcementBar{align-items:center;padding:18px 20px;border:1px solid rgba(125,211,252,.22);border-radius:22px;background:linear-gradient(135deg,rgba(91,140,255,.16),rgba(125,211,252,.07) 48%,rgba(255,255,255,.035));box-shadow:0 18px 60px rgba(0,0,0,.28)}.announcementContent{min-width:0}.announcementBar h1{font-size:28px}.announcementBar .sub{max-width:860px}.announcementBar .ghost{white-space:nowrap}.grid{display:grid;grid-template-columns:380px 1fr;gap:18px;align-items:start}.panel{background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.09);border-radius:22px;box-shadow:0 24px 80px rgba(0,0,0,.35)}.controls{padding:18px;position:sticky;top:18px}.upload{border:1.5px dashed #45506a;border-radius:18px;min-height:144px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:8px;background:#0d111b;cursor:pointer;transition:.18s;margin-bottom:16px}.upload:hover,.upload.drag{border-color:var(--accent);background:#11192b}.upload input{display:none}.uploadIcon{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:#1f2d51;color:white;font-size:27px}.upload small{color:var(--muted)}.field{display:flex;flex-direction:column;gap:7px;margin:12px 0;color:#d8deea;font-size:14px}.field input,.field select{width:100%;background:#0b0f18;color:var(--text);border:1px solid var(--line);border-radius:12px;padding:11px 12px;outline:none;font:inherit}.field input:focus,.field select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(91,140,255,.15)}.field input[type="range"]{padding:0;accent-color:var(--accent)}.field em{font-style:normal;color:var(--muted);font-size:12px;margin-top:-4px}.row.two{display:grid;grid-template-columns:1fr 1fr;gap:12px}details{border:1px solid rgba(255,255,255,.075);border-radius:16px;padding:8px 12px;margin:14px 0;background:rgba(0,0,0,.12)}summary{cursor:pointer;color:#e6ebf5;font-weight:700;padding:7px 0}.checkboxLine{flex-direction:row;align-items:center;gap:10px;margin-top:10px}.checkboxLine input{width:auto}.effectNote{margin:6px 0 2px;color:#aeb8cb;font-size:12px;line-height:1.65;border-left:3px solid rgba(125,211,252,.65);padding-left:10px}button{border:0;border-radius:14px;padding:11px 16px;font-weight:700;cursor:pointer;color:white;background:#20283b;transition:.18s}button:hover{transform:translateY(-1px);filter:brightness(1.08)}button:disabled{opacity:.55;cursor:not-allowed;transform:none}.primary{width:100%;background:linear-gradient(135deg,var(--accent),#8b5cf6);font-size:16px;margin-top:8px;box-shadow:0 12px 32px rgba(91,140,255,.25)}.actionRow{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:8px}.actionRow .primary,.actionRow .ghost{width:100%;margin-top:0}.ghost{background:#141b2b;border:1px solid rgba(255,255,255,.08)}.small{padding:8px 11px;font-size:12px;border-radius:10px}.status{min-height:44px;color:var(--muted);line-height:1.6;margin:13px 0 0;font-size:13px}.status.ok{color:#7dd3a6}.status.err{color:var(--danger)}.previewPanel{padding:14px;min-height:720px;display:flex;flex-direction:column;align-items:center}.previewToolbar{width:100%;display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:13px;padding:6px 6px 12px;border-bottom:1px solid rgba(255,255,255,.07);margin-bottom:14px}.toolbarBtns{display:flex;gap:8px}canvas{width:min(100%,460px);height:auto;background:#000;border-radius:14px;box-shadow:0 20px 70px rgba(0,0,0,.52);display:block;image-rendering:pixelated;image-rendering:crisp-edges}@media(max-width:980px){.grid{grid-template-columns:1fr}.controls{position:static}.hero{align-items:flex-start;flex-direction:column}canvas{width:min(100%,430px)}}
.toolNav{display:block;margin:-2px 0 18px}.toolNavRow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.toolNavRow+.toolNavRow{margin-top:14px}.toolNavRowTwo{grid-template-columns:repeat(2,minmax(0,1fr))}.toolCard{display:flex;align-items:center;gap:12px;min-width:0;min-height:86px;padding:16px 18px;border-radius:20px;text-decoration:none;color:var(--text);background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.025));border:1px solid rgba(255,255,255,.09);box-shadow:0 18px 55px rgba(0,0,0,.26);transition:.18s}.toolCard:hover{transform:translateY(-2px);border-color:rgba(125,211,252,.38);background:linear-gradient(135deg,rgba(91,140,255,.15),rgba(255,255,255,.035))}.toolCard.active{border-color:rgba(91,140,255,.45);background:linear-gradient(135deg,rgba(91,140,255,.22),rgba(125,211,252,.07))}.toolIcon{flex:0 0 42px;width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:#1f2d51;color:#fff;font-size:22px;font-weight:900}.toolCard strong{display:block;font-size:17px;line-height:1.15}.toolCard small{display:block;margin-top:5px;color:var(--muted);line-height:1.45;font-size:12px}@media(max-width:1240px){.toolNavRow{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:760px){.toolNavRow,.toolNavRowTwo{grid-template-columns:1fr}.toolCard{min-height:74px}}

.announcementText{margin:10px 0 0;color:#f4f7ff;font-size:16px;font-weight:800;letter-spacing:.2px;white-space:pre-line}

/* Desktop work surface: source setup, styling controls, and a persistent preview. */
.controlColumns{display:contents}
@media(min-width:1281px){
  .shell{width:min(1580px,calc(100% - 40px))}
  .grid{grid-template-columns:minmax(620px,.92fr) minmax(480px,1.08fr);gap:18px}
  .controlColumns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;align-items:start}
  .controls{position:static;min-width:0}
  .previewPanel{position:sticky;top:18px;min-height:0;height:calc(100vh - 36px);max-height:calc(100vh - 36px);overflow:auto}
  .previewPanel canvas{width:min(100%,520px);max-height:calc(100vh - 112px);object-fit:contain}
}
@media(min-width:981px) and (max-width:1280px){
  .controlColumns{display:contents}
  .previewPanel{position:sticky;top:18px;min-height:0;height:calc(100vh - 36px);max-height:calc(100vh - 36px);overflow:auto}
  .previewPanel canvas{max-height:calc(100vh - 112px);object-fit:contain}
}
@media(max-width:980px){
  .controlColumns{display:contents}
  .previewPanel{height:auto;max-height:none;overflow:visible}
}

/* Number-effect start time: mirrors the text-to-speech delay control. */
.effectDelayField{margin-top:16px}
.fieldHeading{display:flex;align-items:center;justify-content:space-between;gap:12px}
.fieldHeading b{font-size:14px}
.fieldHeading small{color:var(--muted);font-size:12px;font-weight:400}
.delayInputWrap{height:42px;margin-top:8px;border:1px solid var(--line);border-radius:12px;background:#0b0f18;display:grid;grid-template-columns:minmax(0,1fr) 42px;align-items:center;overflow:hidden;transition:border-color .18s,box-shadow .18s}
.delayInputWrap:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(91,140,255,.15)}
.delayInputWrap input{width:100%;height:100%;min-width:0;border:0;outline:0;background:transparent;color:var(--text);padding:0 12px;font:inherit;font-variant-numeric:tabular-nums}
.delayInputWrap>span{height:24px;border-left:1px solid var(--line);color:var(--muted);display:grid;place-items:center;font-size:12px}

/* Independent number/text layers for the video maker. */
.numberLayersField{margin:14px 0 16px}.numberLayersTitle{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin-bottom:9px;color:#dce7f6;font-size:14px}.numberLayersTitle small{color:var(--muted);font-size:11px;text-align:right}.numberLayerList{display:grid;gap:8px}.numberLayerRow{border:1px solid rgba(255,255,255,.11);border-radius:10px;background:#0d121c;padding:8px}.numberLayerRow.active{border-color:#6d96ff;box-shadow:0 0 0 1px rgba(109,150,255,.18)}.numberLayerMain{display:flex;align-items:center;gap:7px}.numberLayerIndex{display:grid;place-items:center;flex:0 0 25px;width:25px;height:25px;padding:0;border:0;border-radius:50%;background:#1f315b;color:#dbe7ff;font-size:12px}.numberLayerInput{flex:1;min-width:0;height:36px;border:1px solid var(--line);border-radius:8px;background:#080d16;color:var(--text);padding:6px 9px;font:14px/1.2 "Microsoft YaHei UI","Segoe UI Emoji","Apple Color Emoji",sans-serif;outline:none}.numberLayerInput:focus{border-color:#6d96ff}.removeNumberLayer{display:grid;place-items:center;flex:0 0 30px;width:30px;height:30px;padding:0;border:1px solid rgba(255,255,255,.12);border-radius:7px;background:#151b28;color:#aebbd0;font-size:18px}.removeNumberLayer:hover{border-color:#f26d77;background:#4b2129;color:#fff}.numberLayerFontField{display:flex;align-items:center;gap:8px;margin-top:8px;color:#9eabc1;font-size:12px}.numberLayerFontField span{flex:0 0 auto}.numberLayerFontSelect,.numberLayerAnimationSelect{flex:1;min-width:0;height:32px;padding:4px 8px;border:1px solid var(--line);border-radius:8px;background:#080d16;color:var(--text);font:12px "Microsoft YaHei UI",sans-serif;outline:none}.numberLayerFontSelect:focus,.numberLayerAnimationSelect:focus{border-color:#6d96ff}.numberLayerMeta{display:block;margin-top:6px;color:#8e9db3;font-size:11px}.addNumberLayerButton{width:100%;margin-top:8px;padding:9px;border:1px dashed rgba(109,150,255,.56);border-radius:8px;background:rgba(43,71,128,.22);color:#d7e4ff;font-size:13px}.addNumberLayerButton:hover{background:rgba(57,91,161,.34)}
.numberCanvasStage{position:relative;width:min(100%,520px);line-height:0}.numberCanvasStage canvas{width:100%;height:auto;max-height:none;object-fit:fill}.numberLayerOverlay{position:absolute;inset:0;pointer-events:none;line-height:1}.numberLayerHandle{position:absolute;box-sizing:border-box;min-width:28px;min-height:28px;border:1px dashed rgba(255,255,255,.78);border-radius:4px;background:transparent;cursor:grab;pointer-events:auto;touch-action:none}.numberLayerHandle.active{border:2px solid #77a0ff;box-shadow:0 0 0 2px rgba(15,26,48,.72)}.numberLayerHandle:active{cursor:grabbing}.numberLayerResize{position:absolute;right:-7px;bottom:-7px;width:14px;height:14px;border:2px solid #fff;border-radius:3px;background:#4f82ef;box-shadow:0 1px 3px rgba(0,0,0,.5);cursor:nwse-resize;touch-action:none}
@media(max-width:980px){.numberCanvasStage{width:min(100%,430px)}}