:root {
  --bg: #f4efe6;
  --paper: #fffaf2;
  --ink: #1f1b16;
  --muted: #6f6458;
  --accent: #b44b2a;
  --accent-dark: #7f3119;
  --green: #2c6b5a;
  --green-dark: #1f5345;
  --line: #ddcfbf;
  --soft-line: #eadfce;
  --shadow: 0 18px 50px rgba(77, 50, 24, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(180, 75, 42, 0.14), transparent 26%),
    linear-gradient(160deg, #f8f1e7 0%, #f1e5d3 100%);
}

body.modal-open {
  overflow: hidden;
}

.page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 40px 20px 60px;
}

.hero {
  margin-bottom: 24px;
}

.hero-actions {
  margin-top: 16px;
}

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

h1 {
  margin: 0;
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.05;
}

.intro {
  max-width: 820px;
  color: var(--muted);
  line-height: 1.7;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.wide-grid {
  grid-template-columns: 1.2fr 1fr;
}

.panel {
  background: rgba(255, 250, 242, 0.94);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 20px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
}

.panel-title,
label {
  display: block;
  margin-bottom: 10px;
  font-weight: 700;
}

.panel-head,
.help-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 14px;
}

.compact-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

textarea,
.text-input,
.code-block,
.select-input {
  width: 100%;
  min-height: 140px;
  padding: 14px 16px;
  border: 1px solid #d4c5b3;
  border-radius: 16px;
  background: #fffdf8;
  color: var(--ink);
  font: 14px/1.6 "Cascadia Code", "Consolas", monospace;
}

textarea {
  resize: vertical;
}

.text-input,
.select-input {
  min-height: auto;
  padding: 12px 16px;
  font: 15px/1.4 "Cascadia Code", "Consolas", monospace;
}

.json-box {
  min-height: 280px;
}

.excel-box {
  min-height: 220px;
}

.code-block {
  margin: 0;
  overflow: auto;
}

.config-box {
  margin: 8px 0 16px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 253, 248, 0.96);
}

.config-box summary {
  cursor: pointer;
  font-weight: 700;
}

.config-actions {
  display: flex;
  align-items: end;
}

.example-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.actions {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 12px 20px;
  background: var(--accent);
  color: #fffaf2;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  background: var(--accent-dark);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

button.secondary {
  background: var(--green);
}

button.secondary:hover {
  background: var(--green-dark);
}

.ghost-button,
.chip-button {
  border: 1px solid #c8b9a6;
  background: transparent;
  color: var(--accent-dark);
}

.ghost-button:hover,
.chip-button:hover {
  background: rgba(180, 75, 42, 0.08);
}

.small-button {
  padding: 8px 14px;
  font-size: 12px;
}

.source,
.message {
  color: var(--muted);
  font-size: 14px;
}

.helper-text {
  margin: 0 0 12px;
  color: var(--muted);
  line-height: 1.6;
}

.friendly-list,
.tip-list,
.result-list,
.summary-grid {
  display: grid;
  gap: 12px;
}

.summary-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.summary-card {
  padding: 16px 18px;
  border-radius: 16px;
  border: 1px solid #d9cbb9;
  background: #fffdf8;
}

.summary-card.tone-good {
  border-color: #8fb9a9;
  background: #f2faf7;
}

.summary-card.tone-warn {
  border-color: #d59671;
  background: #fff4ec;
}

.summary-card.tone-bad {
  border-color: #d07f70;
  background: #fff2f0;
}

.summary-label {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 6px;
}

.summary-value {
  font-size: 24px;
  font-weight: 800;
}

.friendly-item,
.tip-item,
.result-card {
  padding: 14px 16px;
  border-radius: 14px;
  background: #fffdf8;
  border: 1px solid #d9cbb9;
  line-height: 1.7;
}

.result-card {
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.result-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(77, 50, 24, 0.08);
}

.result-card.active {
  border-color: var(--accent);
  box-shadow: 0 12px 24px rgba(180, 75, 42, 0.12);
}

.result-card.has-warning {
  border-color: #d59671;
}

.card-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.card-title {
  font-weight: 800;
  font-size: 16px;
}

.card-subtitle,
.card-summary,
.card-warning,
.card-suggestion {
  color: var(--muted);
  font-size: 14px;
}

.card-summary.settle {
  color: var(--ink);
}

.card-warning {
  margin-top: 6px;
  color: #9a4e2a;
}

.card-suggestion {
  margin-top: 8px;
}

.friendly-item.warning,
.warning-tip {
  border-color: #d59671;
  background: #fff4ec;
}

.friendly-item.muted,
.muted-cell {
  color: var(--muted);
}

.help-modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 60;
}

.help-modal.hidden {
  display: none;
}

.help-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(31, 27, 22, 0.42);
  backdrop-filter: blur(6px);
}

.help-dialog {
  position: relative;
  z-index: 1;
  width: min(920px, 100%);
  max-height: min(80vh, 920px);
  overflow: auto;
  padding: 20px;
  border-radius: 22px;
  background: rgba(255, 250, 242, 0.98);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.table-wrap {
  overflow: auto;
  border: 1px solid #d9cbb9;
  border-radius: 16px;
  background: #fffdf8;
}

.result-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 1100px;
  font-size: 14px;
}

.result-table th,
.result-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--soft-line);
  text-align: left;
  vertical-align: top;
  line-height: 1.6;
}

.result-table thead th {
  position: sticky;
  top: 0;
  background: #f4eadc;
  z-index: 1;
}

.result-table tbody tr:nth-child(even) {
  background: rgba(244, 239, 230, 0.55);
}

@media (max-width: 960px) {
  .grid,
  .wide-grid,
  .summary-grid,
  .form-grid,
  .compact-grid {
    grid-template-columns: 1fr;
  }

  .page {
    padding: 24px 14px 40px;
  }

  .panel-head,
  .help-header {
    flex-direction: column;
    align-items: stretch;
  }

  .help-modal {
    padding: 12px;
  }
}