:root {
  --bg: #f4efe6;
  --panel: rgba(255, 252, 245, 0.92);
  --panel-strong: #fffdf7;
  --border: rgba(61, 46, 31, 0.16);
  --text: #20160f;
  --muted: #74614f;
  --primary: #b6522e;
  --primary-deep: #8b391d;
  --secondary: #1f4e5f;
  --shadow: 0 24px 80px rgba(69, 40, 14, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(182, 82, 46, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(31, 78, 95, 0.12), transparent 24%),
    linear-gradient(180deg, #fcf7ef 0%, #efe6d8 100%);
}

button,
textarea {
  font: inherit;
}

.page-shell {
  max-width: 1440px;
  margin: 0 auto;
  padding: 28px 20px 40px;
}

.site-footer {
  margin-top: 22px;
  text-align: center;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer a {
  color: inherit;
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.hero,
.workspace,
.result-toolbar,
.status-banner {
  backdrop-filter: blur(10px);
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--primary-deep);
  letter-spacing: 0.18em;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.hero h1,
.result-toolbar h2,
.column-head h2,
.column-head h3 {
  margin: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", "Times New Roman", serif;
  font-weight: 700;
}

.hero h1 {
  font-size: clamp(2rem, 3vw, 3.6rem);
  line-height: 1.02;
}

.hero-copy {
  max-width: 720px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.7;
}

.hero-badge {
  flex: 0 0 180px;
  min-height: 180px;
  display: grid;
  place-items: center;
  border-radius: 24px;
  padding: 18px;
  background: linear-gradient(135deg, rgba(182, 82, 46, 0.94), rgba(131, 57, 29, 0.94));
  color: #fff9f2;
  text-align: center;
  font-weight: 700;
  line-height: 1.5;
}

.status-banner {
  margin-top: 18px;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(255, 249, 240, 0.9);
  color: var(--text);
}

.status-banner.error {
  border-color: rgba(182, 82, 46, 0.35);
  background: rgba(255, 236, 228, 0.95);
}

.status-banner.success {
  border-color: rgba(31, 78, 95, 0.28);
  background: rgba(233, 247, 250, 0.96);
}

.workspace {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-top: 22px;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.column {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
  padding: 20px;
  border: 1px solid rgba(61, 46, 31, 0.08);
  border-radius: 24px;
  background: var(--panel-strong);
}

.column-head {
  display: flex;
  align-items: center;
  gap: 12px;
}

.column-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  border-radius: 999px;
  background: var(--secondary);
  color: white;
  font-weight: 700;
}

.column-tag.accent {
  background: var(--primary);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field span {
  font-size: 0.95rem;
  font-weight: 700;
}

textarea {
  width: 100%;
  min-height: 180px;
  resize: vertical;
  border: 1px solid rgba(61, 46, 31, 0.14);
  border-radius: 18px;
  padding: 16px 18px;
  background: #fffdfa;
  color: var(--text);
  line-height: 1.7;
}

textarea:focus {
  outline: 2px solid rgba(182, 82, 46, 0.25);
  border-color: rgba(182, 82, 46, 0.35);
}

.toolbar,
.result-toolbar {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
}

.toolbar {
  grid-column: 1 / -1;
  margin-top: 6px;
}

.primary-button,
.ghost-button {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 14px 22px;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.primary-button {
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  color: white;
  box-shadow: 0 14px 34px rgba(139, 57, 29, 0.28);
}

.ghost-button {
  background: rgba(32, 22, 15, 0.06);
  color: var(--text);
}

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

.primary-button:disabled,
.ghost-button:disabled {
  cursor: not-allowed;
  opacity: 0.62;
  transform: none;
}

.result-toolbar {
  margin-top: 22px;
  padding: 24px 26px;
  border: 1px solid var(--border);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.result-workspace {
  margin-top: 18px;
}

.result-column {
  min-height: 620px;
}

.result-card {
  min-height: 520px;
  max-height: 68vh;
  overflow: auto;
  padding: 20px;
  border: 1px solid rgba(61, 46, 31, 0.08);
  border-radius: 20px;
  background: #fffefb;
}

.result-error {
  margin: 0;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255, 236, 228, 0.95);
  color: var(--primary-deep);
}

.markdown-body {
  line-height: 1.75;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
  margin-top: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", "Times New Roman", serif;
}

.markdown-body h1 {
  font-size: 1.7rem;
}

.markdown-body h2 {
  font-size: 1.25rem;
  margin-top: 1.6rem;
}

.markdown-body p,
.markdown-body li {
  color: #37261b;
}

.markdown-body ul,
.markdown-body ol {
  padding-left: 1.4rem;
}

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

.markdown-body th,
.markdown-body td {
  border: 1px solid rgba(61, 46, 31, 0.14);
  padding: 10px 12px;
  text-align: left;
}

.evaluation-panel {
  margin-top: 18px;
}

.evaluation-head h4 {
  margin: 0 0 10px;
  font-family: "Iowan Old Style", "Palatino Linotype", "Times New Roman", serif;
  font-size: 1.08rem;
}

.evaluation-grid {
  display: grid;
  gap: 14px;
}

.evaluation-card {
  padding: 16px 18px;
  border: 1px solid rgba(61, 46, 31, 0.08);
  border-radius: 18px;
  background: #fffefb;
}

.evaluation-card.is-winner {
  border-color: rgba(31, 78, 95, 0.28);
  background: linear-gradient(180deg, rgba(233, 247, 250, 0.96), rgba(255, 255, 255, 0.98));
  box-shadow: 0 14px 34px rgba(31, 78, 95, 0.10);
}

.evaluation-card.is-muted {
  border-color: rgba(61, 46, 31, 0.08);
  background: #fffefb;
}

.evaluation-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.evaluation-card-head h5 {
  margin: 0;
  font-size: 1rem;
}

.evaluation-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 6px 12px;
  background: rgba(182, 82, 46, 0.12);
  color: var(--primary-deep);
  font-size: 0.88rem;
  font-weight: 700;
}

.evaluation-card.is-winner .evaluation-pill {
  background: rgba(31, 78, 95, 0.14);
  color: var(--secondary);
}

.evaluation-reasons {
  margin: 14px 0 0;
  padding-left: 1.4rem;
  display: grid;
  gap: 10px;
}

.evaluation-reasons li {
  color: #37261b;
  line-height: 1.7;
}

.evaluation-error {
  margin: 0;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255, 236, 228, 0.95);
  color: var(--primary-deep);
}

@media (max-width: 980px) {
  .hero,
  .workspace,
  .result-toolbar,
  .toolbar {
    display: flex;
    flex-direction: column;
  }

  .hero-badge {
    width: 100%;
    min-height: 96px;
  }

  .workspace {
    padding: 16px;
  }

  .column,
  .result-column {
    min-height: auto;
  }

  .result-card {
    max-height: none;
    min-height: 320px;
  }

  .toolbar {
    align-items: stretch;
  }

  .primary-button,
  .ghost-button {
    width: 100%;
  }
}