:root {
  --color-primary: #0f766e;
  --color-primary-hover: #115e59;
  --color-primary-soft: #ccfbf1;
  --color-accent: #c2410c;
  --color-background: #f0fdfa;
  --color-surface: #ffffff;
  --color-surface-muted: #f8fafc;
  --color-foreground: #134e4a;
  --color-text: #172b2a;
  --color-muted: #526766;
  --color-border: #b8d8d4;
  --color-error: #b91c1c;
  --color-error-soft: #fef2f2;
  --color-warning: #92400e;
  --color-warning-soft: #fffbeb;
  --focus-ring: 0 0 0 3px rgba(13, 148, 136, 0.28);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --shadow-panel: 0 10px 30px rgba(19, 78, 74, 0.08);
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  color: var(--color-text);
  background: var(--color-background);
  font-synthesis: none;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html { min-width: 320px; background: var(--color-background); }

body {
  min-height: 100vh;
  margin: 0;
  background:
    linear-gradient(180deg, rgba(204, 251, 241, 0.72) 0, rgba(240, 253, 250, 0) 340px),
    var(--color-background);
  font-size: 16px;
  line-height: 1.6;
}

button, input, textarea { font: inherit; }
button { touch-action: manipulation; }
.visually-hidden { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0, 0, 0, 0) !important; white-space: nowrap !important; border: 0 !important; }

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 8px;
  left: 8px;
  padding: 8px 12px;
  color: white;
  background: var(--color-primary);
  transform: translateY(-160%);
}

.skip-link:focus { transform: translateY(0); }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 12px clamp(16px, 4vw, 48px);
  border-bottom: 1px solid rgba(15, 118, 110, 0.18);
  background: rgba(255, 255, 255, 0.84);
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand strong, .brand span { display: block; }
.brand strong { color: var(--color-foreground); font-size: 17px; line-height: 1.3; }
.brand span { color: var(--color-muted); font-size: 12px; }
.brand-mark { width: 40px; height: 40px; flex: 0 0 auto; }
.brand-mark rect { fill: var(--color-primary); stroke: none; }
.brand-mark path { fill: none; stroke: white; stroke-linecap: round; stroke-width: 2; }
.version { color: var(--color-muted); font-size: 13px; }

.workspace { width: min(1180px, calc(100% - 32px)); margin: 0 auto; padding: 48px 0 80px; }

.intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 40px;
  margin-bottom: 32px;
}

.eyebrow, .section-index {
  margin: 0 0 4px;
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

h1, h2, h3, p { overflow-wrap: anywhere; }
h1 { max-width: 760px; margin: 4px 0 8px; color: var(--color-foreground); font-size: clamp(30px, 5vw, 48px); line-height: 1.2; letter-spacing: -0.035em; }
h2 { margin: 0; color: var(--color-foreground); font-size: 22px; line-height: 1.35; }
h3 { margin: 0; color: var(--color-foreground); font-size: 18px; }
.intro p:last-child { max-width: 720px; margin: 0; color: var(--color-muted); }

.steps { display: flex; gap: 20px; margin: 0; padding: 0; list-style: none; color: var(--color-muted); font-size: 13px; white-space: nowrap; }
.steps li { display: flex; align-items: center; gap: 8px; }
.steps span { display: grid; width: 26px; height: 26px; place-items: center; border: 1px solid var(--color-border); border-radius: 50%; background: white; color: var(--color-primary); font-weight: 700; }

.panel { border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); box-shadow: var(--shadow-panel); }
.input-panel { padding: clamp(20px, 4vw, 36px); }
.panel-heading, .results-header, .primary-action-row, .confirm-panel, .export-panel { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.panel-heading { margin-bottom: 24px; }
.runtime-warning { margin: -6px 0 22px; padding: 14px 16px; border: 1px solid #fdba74; border-radius: var(--radius-md); color: #7c2d12; background: #fff7ed; }
.runtime-warning strong { display: block; margin-bottom: 3px; }
.runtime-warning p { margin: 0; font-size: 13px; }
.runtime-warning code { padding: 2px 5px; border-radius: 4px; color: #7c2d12; background: #ffedd5; overflow-wrap: anywhere; }
.runtime-warning a { color: #9a3412; font-weight: 700; }

.settings-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-bottom: 18px; }
.field { display: grid; gap: 6px; min-width: 0; }
.field > span { color: var(--color-foreground); font-size: 14px; font-weight: 650; }
.field small { color: var(--color-muted); font-size: 12px; line-height: 1.45; }
.compact-field { padding: 14px 16px; border: 1px solid #d8e7e5; border-radius: var(--radius-md); background: var(--color-surface-muted); }

.image-input { margin-bottom: 22px; }
.input-subheading { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 10px; }
.input-subheading h3 { font-size: 15px; }
.input-subheading p { margin: 1px 0 0; color: var(--color-muted); font-size: 12px; }
.local-badge { flex: 0 0 auto; padding: 3px 9px; border-radius: 999px; color: var(--color-primary-hover); background: var(--color-primary-soft); font-size: 12px; font-weight: 700; }
.image-dropzone { display: grid; width: 100%; min-height: 150px; place-items: center; align-content: center; gap: 5px; padding: 20px; border: 1.5px dashed #6fa9a3; color: var(--color-primary); background: #f5fffd; }
.image-dropzone:hover:not(:disabled), .image-dropzone.is-dragging { border-color: var(--color-primary); background: var(--color-primary-soft); }
.image-dropzone svg { width: 30px; height: 30px; margin-bottom: 4px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; }
.image-dropzone strong { color: var(--color-foreground); font-size: 15px; }
.image-dropzone span { color: var(--color-muted); font-size: 12px; font-weight: 400; }
.image-preview-panel { display: grid; grid-template-columns: 80px minmax(0, 1fr) auto; align-items: center; gap: 16px; margin-top: 12px; padding: 14px 16px; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: white; box-shadow: 0 4px 14px rgba(19, 78, 74, 0.05); }
.image-preview-media { position: relative; width: 80px; height: 64px; overflow: hidden; border: 1px solid #d8e7e5; border-radius: var(--radius-sm); background: var(--color-surface-muted); }
.image-preview-media img, .image-preview-fallback { width: 100%; height: 100%; }
.image-preview-media img { display: block; object-fit: cover; }
.image-preview-fallback { display: grid; place-items: center; color: var(--color-primary); background: linear-gradient(145deg, #f0fdfa, #ecf5f4); }
.image-preview-fallback svg { width: 28px; height: 28px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.6; }
.image-preview-info { display: grid; min-width: 0; align-content: center; }
.image-preview-info strong { overflow: hidden; color: var(--color-foreground); font-size: 15px; line-height: 1.45; text-overflow: ellipsis; white-space: nowrap; }
.image-preview-info span { margin-top: 2px; color: var(--color-muted); font-size: 12px; }
.image-actions { display: flex; align-items: center; gap: 10px; }
.preview-action-button { display: inline-flex; min-width: 100px; align-items: center; justify-content: center; gap: 7px; white-space: nowrap; }
.preview-action-button.primary-button { min-width: 154px; }
.preview-action-button svg { width: 18px; height: 18px; flex: 0 0 auto; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; }
.ocr-status { min-height: 22px; margin: 7px 0 0; color: var(--color-muted); font-size: 13px; }
.ocr-status.loading { color: var(--color-primary); }
.ocr-status.success { color: #166534; }
.ocr-status.error { color: var(--color-error); font-weight: 650; }
.input-divider { display: flex; align-items: center; gap: 12px; margin: 20px 0; color: var(--color-muted); font-size: 12px; }
.input-divider::before, .input-divider::after { height: 1px; flex: 1; background: #d8e7e5; content: ""; }

input, textarea {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid #9fbab7;
  border-radius: var(--radius-sm);
  outline: none;
  color: var(--color-text);
  background: white;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

textarea { resize: vertical; line-height: 1.65; }
input:hover, textarea:hover { border-color: var(--color-primary); }
input:focus-visible, textarea:focus-visible, button:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.textarea-field textarea { min-height: 250px; }

.primary-action-row { margin-top: 20px; padding-top: 20px; border-top: 1px solid #e2ecea; }
.primary-action-row p { margin: 0; color: var(--color-muted); font-size: 13px; }

button {
  min-height: 44px;
  border: 0;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 650;
  transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease, opacity 160ms ease;
}

button:active { opacity: 0.78; }
button:disabled { cursor: not-allowed; opacity: 0.45; }
.primary-button { padding: 10px 20px; color: white; background: var(--color-primary); }
.primary-button:hover:not(:disabled) { background: var(--color-primary-hover); }
.secondary-button { padding: 10px 18px; border: 1px solid var(--color-primary); color: var(--color-primary); background: white; }
.secondary-button:hover:not(:disabled), .text-button:hover:not(:disabled) { background: var(--color-primary-soft); }
.text-button { padding: 8px 12px; color: var(--color-primary); background: transparent; }
.danger-button { padding: 7px 12px; border: 1px solid #fecaca; color: var(--color-error); background: white; font-size: 13px; }
.danger-button:hover { background: var(--color-error-soft); }

.results-section { margin-top: 48px; }
.results-header { margin-bottom: 18px; }
.summary { color: var(--color-muted); font-size: 14px; }
.summary strong { color: var(--color-foreground); font-variant-numeric: tabular-nums; }
.error-summary { margin-bottom: 16px; padding: 12px 16px; border: 1px solid #fecaca; border-radius: var(--radius-sm); color: var(--color-error); background: var(--color-error-soft); }
.records { display: grid; gap: 16px; }

.record-card { border: 1px solid var(--color-border); border-radius: var(--radius-md); background: white; box-shadow: 0 6px 20px rgba(19, 78, 74, 0.05); }
.record-card.has-errors { border-color: #fca5a5; }
.record-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px 20px; border-bottom: 1px solid #e2ecea; background: var(--color-surface-muted); border-radius: var(--radius-md) var(--radius-md) 0 0; }
.record-title { display: flex; align-items: center; gap: 10px; min-width: 0; }
.record-number { display: grid; width: 28px; height: 28px; flex: 0 0 auto; place-items: center; border-radius: 50%; color: white; background: var(--color-primary); font-size: 13px; font-weight: 700; }
.status-badge { padding: 3px 8px; border-radius: 999px; color: var(--color-primary-hover); background: var(--color-primary-soft); font-size: 12px; font-weight: 700; }
.status-badge.error { color: var(--color-error); background: #fee2e2; }
.record-body { padding: 20px; }
.record-grid { display: grid; grid-template-columns: 0.7fr 1.2fr 1.2fr 1.2fr; gap: 16px; }
.record-grid .wide { grid-column: span 2; }
.record-grid .full { grid-column: 1 / -1; }
.record-errors, .record-warnings { margin: 16px 0 0; padding: 10px 12px 10px 32px; border-radius: var(--radius-sm); font-size: 13px; }
.record-errors { color: var(--color-error); background: var(--color-error-soft); }
.record-warnings { color: var(--color-warning); background: var(--color-warning-soft); }
.source-details { margin-top: 16px; border-top: 1px solid #e2ecea; padding-top: 12px; }
.source-details summary { min-height: 44px; padding: 9px 0; cursor: pointer; color: var(--color-primary); font-size: 13px; font-weight: 650; }
.source-details p { margin: 4px 0 0; padding: 12px; white-space: pre-wrap; border-radius: var(--radius-sm); color: var(--color-muted); background: var(--color-surface-muted); font-size: 13px; }

.confirm-panel { margin-top: 16px; padding: 18px 20px; border-color: #5eead4; background: #f0fdfa; }
.confirm-panel p { margin: 0; color: var(--color-muted); font-size: 14px; }
.batch-section { padding-top: 8px; }
.confirmed-records { display: grid; gap: 10px; }
.confirmed-card { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 14px 16px; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: white; }
.confirmed-card.has-errors { border-color: #fca5a5; background: var(--color-error-soft); }
.confirmed-main { display: flex; align-items: center; gap: 12px; min-width: 0; }
.confirmed-content { min-width: 0; }
.confirmed-content h3 { font-size: 16px; }
.confirmed-content p { margin: 2px 0 0; color: var(--color-muted); font-size: 13px; font-variant-numeric: tabular-nums; }
.confirmed-content .confirmed-error { color: var(--color-error); font-weight: 650; }
.confirmed-actions { display: flex; flex: 0 0 auto; gap: 8px; }
.compact-button { min-height: 44px; padding: 7px 12px; font-size: 13px; }
.export-panel { margin-top: 24px; padding: 22px 24px; }
.export-panel p:last-child { margin: 4px 0 0; color: var(--color-muted); font-size: 13px; }
.export-actions { display: flex; gap: 10px; }
.toast { position: fixed; z-index: 100; right: 20px; bottom: 20px; max-width: min(360px, calc(100% - 40px)); padding: 12px 16px; border-radius: var(--radius-sm); color: white; background: #172b2a; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2); }

@media (max-width: 900px) {
  .intro { grid-template-columns: 1fr; gap: 20px; }
  .record-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .topbar { min-height: 64px; padding: 10px 16px; }
  .brand span, .version { display: none; }
  .workspace { width: min(100% - 24px, 1180px); padding: 28px 0 56px; }
  .steps { width: 100%; justify-content: space-between; gap: 8px; white-space: normal; }
  .steps li { gap: 5px; font-size: 12px; }
  .settings-row, .record-grid { grid-template-columns: 1fr; }
  .input-subheading { align-items: flex-start; }
  .image-preview-panel { grid-template-columns: 64px minmax(0, 1fr); gap: 12px; padding: 12px; }
  .image-preview-media { width: 64px; height: 56px; }
  .image-actions { grid-column: 1 / -1; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); }
  .preview-action-button, .preview-action-button.primary-button { width: 100%; min-width: 0; }
  .record-grid .wide, .record-grid .full { grid-column: 1; }
  .panel-heading, .results-header, .primary-action-row, .confirm-panel, .export-panel { align-items: stretch; flex-direction: column; }
  .panel-heading, .results-header { gap: 12px; }
  .runtime-warning { margin-top: 0; }
  .text-button { align-self: flex-start; }
  .primary-action-row .primary-button { width: 100%; }
  .record-heading { align-items: flex-start; }
  .record-title { align-items: flex-start; flex-wrap: wrap; }
  .confirmed-card { align-items: stretch; flex-direction: column; }
  .confirmed-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .export-actions { display: grid; grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
}