/* ═══════════════════════════════════════════════════════════════
   古籍资料 · 古今对照浏览 — 组件样式
   ═══════════════════════════════════════════════════════════════ */

/* ── 顶部导航条 ── */
.corpus-topbar {
  background: var(--c-bg);
  border-bottom: 1px solid var(--c-border);
  padding: 1rem 2rem;
}

.corpus-back-link {
  display: inline-flex;
  align-items: center;
  color: var(--c-accent);
  text-decoration: none;
  font-weight: bold;
  font-size: 0.95rem;
}

.corpus-back-link:hover {
  opacity: 0.8;
}

/* ── 主内容区：与其他页面一致的 container mx-auto 布局 ── */
.corpus-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  font-family: var(--f-tgt);
  color: var(--c-ink);
  background: var(--c-bg);
  min-height: calc(100vh - 60px);
}

/* ─ 页面标题区 ── */
.corpus-header {
  text-align: center;
  margin-bottom: 2rem;
  padding-top: 1rem;
}

.corpus-title {
  font-size: 2rem;
  font-weight: bold;
  color: var(--c-ink);
  margin-bottom: 0.5rem;
  margin-top: 0;
}

.corpus-subtitle {
  color: var(--c-ink-2);
  font-size: 0.95rem;
  margin: 0;
}

/* ── 统计信息 ── */
.stats-info {
  text-align: center;
  color: var(--c-ink-2);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

/* ── 史书选择器 ─ */
.book-picker {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.book-picker label {
  font-size: 0.95rem;
  color: var(--c-ink-2);
}

.book-picker select {
  min-width: 160px;
  padding: 0.5rem 1rem;
  border: 1px solid var(--c-border);
  border-radius: 8px;
  font-size: 1rem;
  background: var(--c-surface);
  color: var(--c-ink);
  cursor: pointer;
}

.book-picker select:focus {
  outline: none;
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px rgba(140, 47, 35, 0.15);
}

/* ── 搜索框 ── */
.search-bar {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.search-bar input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1px solid var(--c-border);
  border-radius: 8px;
  font-size: 1rem;
  background: var(--c-surface);
  color: var(--c-ink);
}

.search-bar input:focus {
  outline: none;
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px rgba(140, 47, 35, 0.15);
}

.search-bar select {
  padding: 0.75rem 1rem;
  border: 1px solid var(--c-border);
  border-radius: 8px;
  font-size: 1rem;
  background: var(--c-surface);
  color: var(--c-ink);
}

.search-bar button {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  background: var(--c-accent);
  color: white;
  font-weight: bold;
  cursor: pointer;
  font-size: 1rem;
}

.search-bar button:hover {
  opacity: 0.9;
}

/* ── 页码导航 ── */
.pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin: 1rem 0;
  flex-wrap: wrap;
}

.pager-bottom {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--c-border);
}

.pager button {
  padding: 0.5rem 1rem;
  border: 1px solid var(--c-border);
  border-radius: 8px;
  background: var(--c-surface);
  color: var(--c-ink);
  cursor: pointer;
  font-weight: bold;
}

.pager button:hover:not(:disabled) {
  background: var(--c-border);
}

.pager button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.pager input {
  width: 80px;
  padding: 0.5rem;
  border: 1px solid var(--c-border);
  border-radius: 8px;
  text-align: center;
  font-size: 1rem;
}

.pager .page-info {
  color: var(--c-ink-2);
  font-size: 0.9rem;
}

.pager-copy {
  padding: 0.75rem 2rem !important;
  font-size: 1rem !important;
}

/* ── 对照卡片 ── */
.segment {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  box-shadow: 0 1px 2px rgb(31 28 24 / .05);
}

.segment__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  font-size: 0.8rem;
  color: var(--c-ink-2);
}

.segment__page {
  font-family: monospace;
}

.segment__copy {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  opacity: 0.6;
}

.segment__copy:hover {
  opacity: 1;
}

/* 宽屏左右分栏 */
.segment__pair {
  display: grid;
  gap: 1rem;
}

@media (min-width: 960px) {
  .segment__pair {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
  .segment__tgt {
    border-left: 1px solid var(--c-border);
    padding-left: 2rem;
  }
}

/* 原文：悬挂缩进，标签绝对定位 */
.segment__src {
  font-family: var(--f-src);
  font-weight: 400;
  font-size: 1.0625rem;
  line-height: 2;
  color: var(--c-ink);
  margin: 0;
  padding-left: 3.5em;
  position: relative;
}

@media (min-width: 960px) {
  .segment__src {
    margin-bottom: 0;
  }
}

/* 译文：悬挂缩进，标签绝对定位 */
.segment__tgt {
  font-family: var(--f-tgt);
  font-size: 0.9375rem;
  line-height: 1.9;
  color: var(--c-ink-2);
  margin: 0;
  padding-left: 3.5em;
  position: relative;
}

/* 标签样式 */
.segment__label {
  position: absolute;
  left: 0;
  top: 0.35em;
  font-size: 0.75rem;
  line-height: 1.6;
  padding: 0.1em 0.5em;
  border-radius: 4px;
  background: var(--c-accent);
  color: #fff;
  font-family: var(--f-tgt);
  font-weight: 400;
  white-space: nowrap;
  user-select: none;
}

/* ── 专有名词高亮 ── */
.proper-noun {
  background: var(--c-mark);
  font-weight: inherit;
  color: inherit;
  padding: 0 2px;
  border-radius: 2px;
  cursor: help;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

/* ── 检索命中高亮 ── */
.search-hit {
  background: var(--c-mark-hit);
  color: inherit;
  padding: 0 2px;
  border-radius: 2px;
}

/* ── 对齐标识 ─ */
.segment--multi {
  border-left: 3px solid var(--c-accent);
}

.segment__align-badge {
  font-size: 0.7rem;
  background: rgba(140, 47, 35, 0.1);
  color: var(--c-accent);
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 0.5rem;
}

/* ── 加载状态 ── */
.loading {
  text-align: center;
  padding: 2rem;
  color: var(--c-ink-2);
}

.loading::after {
  content: '...';
  animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
  0%, 20% { content: '.'; }
  40% { content: '..'; }
  60%, 100% { content: '...'; }
}

/* ─ 空状态 ── */
.empty-state {
  text-align: center;
  padding: 3rem;
  color: var(--c-ink-2);
}

/* ── 检索结果列表 ── */
.result-list-header {
  color: var(--c-ink-2);
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.result-book-badge {
  display: inline-block;
  font-size: 0.75rem;
  background: rgba(140, 47, 35, 0.1);
  color: var(--c-accent);
  padding: 2px 8px;
  border-radius: 4px;
  margin-right: 0.5rem;
}