:root {
  --bg: #07111f;
  --panel: rgba(12, 22, 39, 0.82);
  --panel-2: rgba(9, 17, 31, 0.82);
  --text: #ebf3ff;
  --muted: #92a4bf;
  --line: rgba(146, 164, 191, 0.16);
  --accent: #73e0ff;
  --accent-2: #7c8cff;
  --danger: #ff7f96;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: "Inter", "Noto Sans TC", system-ui, sans-serif; color: var(--text); background: radial-gradient(circle at top, #10284a 0%, var(--bg) 38%, #030712 100%); }
body { min-height: 100vh; padding: 24px; overflow-x: hidden; position: relative; }
button, input, select, textarea { font: inherit; }
a { color: inherit; text-decoration: none; }
code { background: rgba(255,255,255,0.08); padding: 2px 6px; border-radius: 8px; }
.bg-grid { position: fixed; inset: 0; background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px); background-size: 32px 32px; mask-image: radial-gradient(circle at center, black, transparent 85%); pointer-events: none; }
.orb { position: fixed; border-radius: 50%; filter: blur(60px); pointer-events: none; opacity: 0.55; }
.orb-a { width: 280px; height: 280px; top: 8%; left: 8%; background: rgba(115,224,255,0.16); }
.orb-b { width: 340px; height: 340px; right: 4%; top: 20%; background: rgba(124,140,255,0.18); }
.shell, .preview-shell { position: relative; z-index: 1; max-width: 1440px; margin: 0 auto; }
.topbar, .preview-topbar { display: flex; justify-content: space-between; align-items: flex-start; gap: 18px; margin-bottom: 22px; }
.back, .badge, .inline-toggle { border: 1px solid var(--line); background: rgba(255,255,255,0.03); border-radius: 999px; padding: 10px 14px; }
.badge { letter-spacing: 0.14em; color: var(--accent); font-size: 12px; }
.panel { border: 1px solid var(--line); background: var(--panel); border-radius: 28px; box-shadow: var(--shadow); backdrop-filter: blur(16px); }
.panel-sub { border: 1px solid var(--line); background: var(--panel-2); border-radius: 24px; padding: 18px; }
.hero { padding: 32px; margin-bottom: 18px; }
.eyebrow { color: var(--accent); letter-spacing: 0.16em; text-transform: uppercase; font-size: 12px; }
h1 { margin: 14px 0 16px; font-size: clamp(32px, 5vw, 62px); line-height: 1; }
h2, h3 { margin-top: 0; }
.subtitle { color: var(--muted); max-width: 860px; line-height: 1.8; font-size: 17px; }
.chips { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 22px; }
.chips span { border: 1px solid var(--line); border-radius: 999px; padding: 10px 14px; color: var(--muted); }
.workspace { display: grid; grid-template-columns: 360px minmax(0, 1fr); gap: 18px; align-items: start; }
.workspace-batch-panel { grid-column: 1 / -1; }
.controls, .editor-panel, .stage-panel, .preview-list-panel { padding: 24px; }
.sticky { position: sticky; top: 24px; }
label { display: block; margin-bottom: 14px; }
label span { display: block; margin-bottom: 8px; color: var(--muted); font-size: 14px; }
input[type="number"], input[type="text"], select, textarea { width: 100%; border-radius: 16px; border: 1px solid var(--line); background: rgba(4, 10, 20, 0.72); color: var(--text); padding: 12px 14px; }
label:not(.slider-field) input[type="number"] {
  padding-right: 16px;
  min-height: 48px;
  color-scheme: dark;
}
label:not(.slider-field) input[type="number"]::-webkit-inner-spin-button,
label:not(.slider-field) input[type="number"]::-webkit-outer-spin-button {
  opacity: 1;
  transform: scale(1.15);
}
.slider-field { display: block; margin-bottom: 0; }
.slider-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; }
.slider-head span { margin-bottom: 0; }
.slider-head input[type="number"] { width: 84px; text-align: right; padding: 10px 12px; border-radius: 14px; appearance: textfield; -moz-appearance: textfield; }
.slider-head input[type="number"]::-webkit-outer-spin-button,
.slider-head input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.slider-field input[type="range"] { width: 100%; margin: 0; accent-color: var(--accent); background: transparent; }
.slider-field input[type="range"]::-webkit-slider-runnable-track { height: 8px; border-radius: 999px; background: rgba(255,255,255,0.12); }
.slider-field input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 18px; height: 18px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), var(--accent-2)); border: none; margin-top: -5px; box-shadow: 0 0 0 4px rgba(115,224,255,0.16); }
.slider-field input[type="range"]::-moz-range-track { height: 8px; border-radius: 999px; background: rgba(255,255,255,0.12); border: none; }
.slider-field input[type="range"]::-moz-range-thumb { width: 18px; height: 18px; border: none; border-radius: 50%; background: linear-gradient(135deg, var(--accent), var(--accent-2)); box-shadow: 0 0 0 4px rgba(115,224,255,0.16); }
input[type="file"] { width: 100%; }
textarea { min-height: 230px; resize: vertical; line-height: 1.7; }
.file-picker { padding: 14px; border: 1px dashed rgba(115,224,255,0.28); border-radius: 18px; background: rgba(255,255,255,0.02); }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.inline-toggle-row, .inline-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 10px 0 14px; }
.inline-toggle { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); }
.inline-toggle input { margin: 0; }
.compact-actions { margin-top: 8px; }
.hint, .data-stats, .status { color: var(--muted); line-height: 1.7; font-size: 14px; }
.status { margin-top: 16px; }
.stage-status { margin: 0 0 16px; }
.actions { display: grid; gap: 10px; margin-top: 16px; }
.btn, .mini-btn, .dialog-close { border: 1px solid var(--line); background: rgba(255,255,255,0.03); color: var(--text); border-radius: 16px; padding: 14px 16px; cursor: pointer; transition: transform .2s ease, border-color .2s ease, opacity .2s ease; }
.mini-btn { border-radius: 999px; padding: 10px 14px; }
.btn:hover, .mini-btn:hover, .back:hover, .dialog-close:hover { transform: translateY(-1px); border-color: rgba(115,224,255,0.35); }
.btn.primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #08111d; font-weight: 800; border: none; }
.btn.danger { color: #ffc9d2; }
.main-column { display: grid; gap: 18px; }
.section-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 16px; }
.section-head p { margin: 4px 0 0; color: var(--muted); line-height: 1.7; }
.stage-layout { display: grid; grid-template-columns: minmax(0, 1fr) 420px; gap: 18px; }
.stage-preview-column { min-width: 0; }
.stage-wrap { min-width: 0; overflow: auto; }
.export-bar {
  margin-top: 18px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr);
  gap: 18px;
  align-items: start;
}
.export-bar h3 { margin: 0 0 4px; }
.export-bar-note { margin: 0; color: var(--muted); line-height: 1.6; }
.export-bar-controls { display: grid; gap: 14px; }
.export-toggle-row { justify-content: flex-end; margin: 0; }
.export-actions { display: flex; justify-content: flex-end; gap: 10px; flex-wrap: wrap; }
.page-stage { position: relative; width: min(100%, 720px); aspect-ratio: 210 / 297; margin: 0 auto; background: #fff; border-radius: 24px; padding: 0; box-shadow: 0 24px 60px rgba(0,0,0,0.25); overflow: hidden; }
.page-stage.safe-hidden { background: transparent; box-shadow: none; }
.page-stage-safe { position: absolute; border: 1px dashed rgba(234, 88, 12, 0.85); pointer-events: none; z-index: 2; }
.single-stage-preview { position: absolute; inset: 0; overflow: hidden; background: #fff; }
.single-stage-preview canvas { width: 100%; height: 100%; display: block; }
.single-stage { position: absolute; inset: 0; overflow: hidden; background: transparent; border: 1px solid rgba(15, 23, 42, 0.12); background-repeat: no-repeat; }
.single-stage.single-focus { position: absolute; left: 0 !important; top: 0 !important; width: 100% !important; height: 100% !important; margin: 0 !important; }
.text-box { position: absolute; border: 1px dashed rgba(115,224,255,0.8); background: rgba(10, 16, 28, 0.18); padding: 4px; overflow: hidden; cursor: move; user-select: none; z-index: 3; }
.text-box.active { outline: 2px solid rgba(124,140,255,0.8); }
.text-box .content { width: 100%; height: 100%; white-space: pre-wrap; overflow: hidden; display: flex; }
.text-box.vertical .content { writing-mode: vertical-rl; text-orientation: mixed; }
.inspector-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.inspector-grid label { margin: 0; }
.inspector-grid > label:first-child,
.checkbox-label { grid-column: 1 / -1; }
.slider-head-actions { display: flex; align-items: center; gap: 8px; }
.mini-btn-inline { padding: 6px 10px; font-size: 12px; }
.checkbox-label { display: flex; align-items: center; gap: 10px; color: var(--muted); }
.a4-preview-embed { padding: 14px; }
.a4-preview-embed canvas { width: 100%; height: auto; display: block; background: #fff; border-radius: 16px; }
.mini-btn.active { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #08111d; border: none; font-weight: 800; }
.preview-body { padding: 24px; }
.preview-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.preview-list { display: grid; gap: 18px; margin-top: 18px; }
.preview-card { padding: 16px; border: 1px solid var(--line); border-radius: 22px; background: rgba(255,255,255,0.03); }
.preview-card-head { display: flex; justify-content: space-between; gap: 10px; align-items: center; margin-bottom: 12px; }
.preview-card-head h3 { margin: 0; }
.preview-meta { color: var(--muted); font-size: 14px; }
.preview-card canvas { width: 100%; height: auto; border-radius: 16px; background: #fff; display: block; }
.zoom-dialog { width: min(94vw, 1080px); max-width: 1080px; border: 1px solid var(--line); border-radius: 24px; background: rgba(4, 10, 20, 0.94); color: var(--text); padding: 16px; }
.zoom-dialog::backdrop { background: rgba(0,0,0,0.75); }
.dialog-close { margin-left: auto; display: block; }
.dialog-stage { margin-top: 12px; overflow: auto; max-height: 78vh; }
.dialog-stage canvas { width: 100%; height: auto; background: #fff; border-radius: 16px; }
@media (max-width: 1120px) { .workspace, .stage-layout { grid-template-columns: 1fr; } .sticky { position: static; } }
@media (max-width: 700px) { body, .preview-body { padding: 16px; } .hero, .controls, .editor-panel, .stage-panel, .preview-list-panel { padding: 20px; } .topbar, .preview-topbar, .section-head { flex-direction: column; } .two-col, .inspector-grid, .export-bar { grid-template-columns: 1fr; } .export-toggle-row, .export-actions { width: 100%; justify-content: stretch; } .export-actions .btn { width: 100%; } }