:root {
  --bg: #f6efe4;
  --bg-deep: #eadbc3;
  --panel: rgba(255, 251, 244, 0.88);
  --panel-border: rgba(73, 50, 39, 0.12);
  --ink: #1f2830;
  --muted: #5e5a57;
  --accent: #c65945;
  --accent-deep: #953422;
  --teal: #2f6f6d;
  --gold: #d2a85f;
  --shadow: 0 20px 50px rgba(79, 55, 36, 0.14);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --ui-font: "Avenir Next", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.68), transparent 36%),
    radial-gradient(circle at right 15%, rgba(210, 168, 95, 0.18), transparent 30%),
    linear-gradient(160deg, var(--bg) 0%, #f7f1e7 35%, var(--bg-deep) 100%);
  color: var(--ink);
  font-family: var(--ui-font);
}

button,
input,
textarea,
select {
  font: inherit;
}

.page-shell {
  max-width: 1480px;
  margin: 0 auto;
  padding: 28px;
}

.site-footer {
  margin-top: 22px;
  padding: 10px 4px 2px;
  color: var(--muted);
  font-size: 0.92rem;
  text-align: center;
  letter-spacing: 0.04em;
}

.hero {
  display: grid;
  grid-template-columns: 1fr minmax(260px, 320px);
  gap: 24px;
  align-items: start;
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent-deep);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.9rem);
  line-height: 0.94;
}

.hero-copy {
  max-width: 780px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 1.03rem;
  line-height: 1.7;
}

.hero-note {
  border: 1px solid rgba(149, 52, 34, 0.12);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 245, 224, 0.95), rgba(255, 255, 255, 0.92));
  padding: 22px 22px 20px;
  box-shadow: var(--shadow);
}

.hero-note span {
  display: inline-block;
  margin-bottom: 10px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(210, 168, 95, 0.16);
  color: var(--accent-deep);
  font-size: 0.9rem;
  font-weight: 700;
}

.hero-note strong {
  display: block;
  font-size: 1.1rem;
}

.hero-note p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(380px, 470px) 1fr;
  gap: 24px;
  align-items: start;
}

.control-panel,
.preview-panel {
  display: grid;
  gap: 18px;
}

.panel-card {
  background: var(--panel);
  backdrop-filter: blur(18px);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 22px;
}

.panel-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 16px;
}

.panel-heading h2 {
  margin: 0;
  font-size: 1.02rem;
}

.panel-heading span,
.subtle {
  color: var(--muted);
  font-size: 0.92rem;
}

.subtle {
  margin: 6px 0 0;
}

.field {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.field span {
  font-size: 0.92rem;
  font-weight: 600;
}

textarea,
select,
input[type="file"] {
  width: 100%;
  border: 1px solid rgba(73, 50, 39, 0.16);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.9);
  color: var(--ink);
}

textarea,
select {
  padding: 14px 16px;
}

textarea {
  min-height: 92px;
  resize: vertical;
  line-height: 1.7;
}

input[type="file"] {
  padding: 10px 12px;
}

.quick-actions,
.button-row,
.preview-nav,
.character-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.button-row {
  margin-top: 16px;
}

.primary-button,
.ghost-button {
  appearance: none;
  border: none;
  border-radius: 999px;
  padding: 11px 18px;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.primary-button {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: white;
  box-shadow: 0 12px 26px rgba(149, 52, 34, 0.22);
}

.ghost-button {
  background: rgba(255, 255, 255, 0.88);
  color: var(--ink);
  border: 1px solid rgba(73, 50, 39, 0.12);
}

.primary-button:hover,
.ghost-button:hover {
  transform: translateY(-1px);
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.field-grid .field {
  margin-bottom: 0;
}

.font-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

input[type="color"] {
  width: 100%;
  height: 54px;
  border: 1px solid rgba(73, 50, 39, 0.16);
  border-radius: var(--radius-md);
  background: white;
  padding: 4px;
}

.slider-stack {
  display: grid;
  gap: 10px;
}

.slider-field {
  margin-bottom: 0;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--teal);
}

.toggle-field {
  align-content: start;
}

.toggle-switch {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 54px;
  padding: 0 14px;
  border: 1px solid rgba(73, 50, 39, 0.16);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.9);
  color: var(--ink);
  font-weight: 500;
}

.toggle-switch input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--teal);
}

.export-copy p {
  margin: 0 0 10px;
  color: var(--muted);
  line-height: 1.6;
}

.preview-card {
  position: sticky;
  top: 18px;
}

.preview-stage {
  padding: 20px;
  border-radius: calc(var(--radius-lg) - 6px);
  background:
    linear-gradient(135deg, rgba(196, 89, 69, 0.08), transparent 35%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.7), rgba(236, 227, 215, 0.9));
}

.paper-frame {
  display: grid;
  place-items: center;
}

.paper-sheet {
  width: min(100%, 690px);
  aspect-ratio: 210 / 297;
  border-radius: 12px;
  overflow: hidden;
  box-shadow:
    0 26px 52px rgba(84, 60, 36, 0.16),
    inset 0 0 0 1px rgba(31, 40, 48, 0.08);
  background: white;
}

.paper-sheet svg {
  display: block;
  width: 100%;
  height: 100%;
}

.character-strip {
  margin-top: 18px;
}

.character-button {
  min-width: 48px;
  padding: 10px 14px;
  border-radius: 16px;
  border: 1px solid rgba(73, 50, 39, 0.12);
  background: rgba(255, 255, 255, 0.86);
  color: var(--ink);
  cursor: pointer;
  transition: transform 160ms ease, background 160ms ease, color 160ms ease;
}

.character-button.is-active {
  background: linear-gradient(135deg, var(--teal), #214f52);
  color: white;
  transform: translateY(-1px);
}

@media (max-width: 1120px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .preview-card {
    position: static;
  }
}

@media (max-width: 780px) {
  .page-shell {
    padding: 18px;
  }

  .hero {
    grid-template-columns: 1fr;
  }

  .field-grid {
    grid-template-columns: 1fr;
  }

  .panel-heading {
    flex-direction: column;
  }

  .preview-nav {
    width: 100%;
    justify-content: space-between;
  }
}