:root {
  --bg: #f5f0e8;
  --paper: #fdfcf9;
  --ink: #2c2825;
  --ink-muted: #5c5650;
  --accent: #8b6914;
  --accent-hover: #6d5210;
  --border: #e0d9cc;
  --shadow: rgba(44, 40, 37, 0.08);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", serif;
  --font-sans: "DM Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header */
.header {
  background: var(--paper);
  border-bottom: 1px solid var(--border);
  padding: 1.75rem 0;
}

.logo {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--ink);
}

.tagline {
  margin: 0.35rem 0 0;
  font-size: 0.9rem;
  color: var(--ink-muted);
}

/* Main */
.main {
  padding: 2rem 0 3rem;
}

.search-section {
  margin-bottom: 1.75rem;
}

.search-box {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.search-box input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.search-box input::placeholder {
  color: var(--ink-muted);
  opacity: 0.8;
}

.search-box input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(139, 105, 20, 0.15);
}

.search-box button {
  padding: 0.75rem 1.25rem;
  border: none;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  font-family: inherit;
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 0.2s;
}

.search-box button:hover {
  background: var(--accent-hover);
}

/* 阿拉伯语列：从右到左 */
.th-arabic {
  text-align: right;
}
.cell-arabic {
  direction: rtl;
  font-family: "Noto Naskh Arabic", "Traditional Arabic", "Scheherazade New", serif;
  text-align: right;
}

/* Results */
.results-section {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 12px var(--shadow);
}

.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  background: rgba(0, 0, 0, 0.03);
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--ink-muted);
}

.btn-secondary {
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--paper);
  color: var(--ink);
  font-family: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}

.btn-secondary:hover {
  background: var(--bg);
  border-color: var(--accent);
  color: var(--accent);
}

.limit-options {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.limit-label {
  margin-right: 0.25rem;
  color: var(--ink-muted);
  font-size: 0.85rem;
}

.limit-btn {
  min-width: 2.25rem;
  padding: 0.35rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--paper);
  color: var(--ink-muted);
  font-family: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.limit-btn:hover {
  background: var(--bg);
  border-color: var(--accent);
  color: var(--accent);
}

.limit-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.table-wrap {
  overflow-x: auto;
}

table.对照表 {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

table.对照表 th,
table.对照表 td {
  padding: 0.7rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

table.对照表 th {
  background: rgba(0, 0, 0, 0.04);
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}

table.对照表 tbody tr:hover {
  background: rgba(139, 105, 20, 0.05);
}

table.对照表 td {
  color: var(--ink);
  vertical-align: top;
}

table.对照表 td.empty {
  color: var(--ink-muted);
  font-style: italic;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 1rem;
  border-top: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.02);
}

.pagination.hidden {
  display: none;
}

.page-btn {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--paper);
  color: var(--ink);
  font-family: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}

.page-btn:hover:not(:disabled) {
  background: var(--bg);
  border-color: var(--accent);
  color: var(--accent);
}

.page-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.page-info {
  font-size: 0.9rem;
  color: var(--ink-muted);
}

.empty-tip {
  margin: 0;
  padding: 1rem;
  text-align: center;
  color: var(--ink-muted);
  font-size: 0.9rem;
  display: none;
}

.empty-tip.visible {
  display: block;
}

/* 页面底部说明与备注 */
.page-notes {
  padding: 2rem 0 2.5rem;
}

.notes-box {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 1.25rem;
  overflow: hidden;
  box-shadow: 0 2px 8px var(--shadow);
}

.notes-box:last-of-type {
  margin-bottom: 0;
}

.notes-title {
  margin: 0;
  padding: 0.75rem 1rem;
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
  background: rgba(0, 0, 0, 0.04);
  border-bottom: 1px solid var(--border);
}

.notes-content {
  padding: 1rem 1.25rem;
  color: var(--ink);
  font-size: 0.95rem;
  line-height: 1.7;
}

.notes-content p {
  margin: 0 0 0.5rem;
}

.notes-content p:last-child {
  margin-bottom: 0;
}

/* Footer */
.footer {
  padding: 1.25rem 0;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--ink-muted);
  font-size: 0.85rem;
}

.footer p {
  margin: 0;
}

@media (max-width: 640px) {
  .logo {
    font-size: 1.4rem;
  }

  .search-box {
    flex-direction: column;
  }

  .results-header {
    flex-direction: column;
    align-items: flex-start;
  }

  table.对照表 th,
  table.对照表 td {
    padding: 0.5rem 0.65rem;
    font-size: 0.9rem;
  }
}