/* 藏书 · 设计系统：宣纸 + 墨 + 朱砂藏书印；布面书封按一级分类取矿物色。 */

:root {
  --paper: #f6f4ee;
  --card: #fdfcf8;
  --ink: #2a271f;
  --ink-2: #746c5b;
  --line: #e4dfd1;
  --seal: #b23a2e;
  --seal-deep: #93291f;
  --cloth-text: #f4eddb;
  --serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Noto Sans CJK SC", "Segoe UI", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #17160f;
    --card: #201e15;
    --ink: #e8e2d2;
    --ink-2: #9d9584;
    --line: #363327;
    --seal: #c44a38;
    --seal-deep: #a83a2a;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
::selection { background: color-mix(in srgb, var(--seal) 24%, transparent); }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--seal); outline-offset: 2px; }

/* --- 页头与藏书印 --------------------------------------------------------- */
header.site {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 20px 10px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.seal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background: var(--seal);
  color: #f7f0e0;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  border-radius: 7px;
  box-shadow: inset 0 0 0 1.5px rgba(247, 240, 224, 0.35), inset 0 0 0 3.5px var(--seal);
}
.seal-lg { width: 64px; height: 64px; font-size: 40px; border-radius: 14px;
  box-shadow: inset 0 0 0 2.5px rgba(247, 240, 224, 0.35), inset 0 0 0 6px var(--seal); }
.wordmark { font-family: var(--serif); font-size: 20px; font-weight: 700; letter-spacing: 0.32em; }
.site-nav { margin-left: auto; display: flex; align-items: center; gap: 18px; }
.site-nav a, .linklike {
  font-size: 14px;
  color: var(--ink-2);
  text-decoration: none;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  font-family: var(--sans);
}
.site-nav a:hover, .linklike:hover { color: var(--seal); }

.page { max-width: 1200px; margin: 0 auto; padding: 6px 20px 60px; }

/* --- 筛选栏 --------------------------------------------------------------- */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 16px; }
.filters .search { flex: 1 1 240px; min-width: 200px; }
input, select, textarea {
  font-family: var(--sans);
  font-size: 14.5px;
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
}
select { max-width: 190px; }
textarea { resize: vertical; line-height: 1.7; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--seal); outline-offset: 0; border-color: transparent; }
select:disabled { opacity: 0.45; }

/* --- 结果条 --------------------------------------------------------------- */
.results-meta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin: 0 0 14px; }
.count { font-size: 13.5px; color: var(--ink-2); }
.count b { color: var(--ink); font-weight: 600; }
.view-toggle { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.view-toggle a { font-size: 13px; padding: 3px 12px; text-decoration: none; color: var(--ink-2); }
.view-toggle a + a { border-left: 1px solid var(--line); }
.view-toggle a.on { background: var(--ink); color: var(--paper); }
.exports { margin-left: auto; display: inline-flex; gap: 12px; }
.exports a { font-size: 13px; color: var(--ink-2); text-decoration: none; }
.exports a:hover { color: var(--seal); text-decoration: underline; }

/* --- 封面墙与布面书封 ----------------------------------------------------- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 24px 18px; }
.card { display: block; text-decoration: none; }
.cover {
  display: flex;
  aspect-ratio: 5 / 7;
  border-radius: 4px 9px 9px 4px;
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(20, 16, 8, 0.14), 0 10px 18px -12px rgba(20, 16, 8, 0.4);
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}
.card:hover .cover { transform: translateY(-3px); box-shadow: 0 2px 4px rgba(20, 16, 8, 0.14), 0 16px 26px -14px rgba(20, 16, 8, 0.45); }
.cover.has-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.cover.cloth {
  flex-direction: column;
  padding: 13px 12px 10px 15px;
  color: var(--cloth-text);
  background: linear-gradient(
    160deg,
    color-mix(in srgb, var(--cloth) 86%, #fff) 0%,
    var(--cloth) 52%,
    color-mix(in srgb, var(--cloth) 84%, #000) 100%
  );
  border-left: 5px solid color-mix(in srgb, var(--cloth) 62%, #fff);
}
.c-title {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: auto;
}
.c-author, .c-pub { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.c-author { font-size: 11px; opacity: 0.88; margin-top: 10px; }
.c-pub { font-size: 10px; opacity: 0.62; margin-top: 3px; }
.caption {
  display: block;
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--ink-2);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.card:hover .caption { color: var(--ink); }

/* --- 表格视图 ------------------------------------------------------------- */
.table-wrap { overflow-x: auto; }
table.books { width: 100%; border-collapse: collapse; font-size: 14px; }
table.books th {
  text-align: left;
  font-weight: 500;
  font-size: 12.5px;
  color: var(--ink-2);
  padding: 6px 10px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
table.books td { padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.books tbody tr:hover { background: color-mix(in srgb, var(--ink) 4%, transparent); }
.t-title { font-family: var(--serif); font-size: 15px; text-decoration: none; }
.t-title:hover { color: var(--seal); text-decoration: underline; }
.t-sub { display: block; font-size: 12px; color: var(--ink-2); }
.t-cat { font-size: 13px; color: var(--ink-2); }

/* --- 分页与空态 ----------------------------------------------------------- */
.pager { display: flex; justify-content: center; align-items: baseline; gap: 22px; margin-top: 30px; font-size: 14px; }
.pager a { color: var(--ink-2); text-decoration: none; }
.pager a:hover { color: var(--seal); }
.pager .off { color: color-mix(in srgb, var(--ink-2) 45%, transparent); }
.pager .where { color: var(--ink-2); font-size: 13px; }
.empty { text-align: center; padding: 70px 0; color: var(--ink-2); }
.empty a { color: var(--seal); }

/* --- 详情页 --------------------------------------------------------------- */
.crumbs { font-size: 13.5px; margin: 4px 0 12px; }
.crumbs a { color: var(--ink-2); text-decoration: none; }
.crumbs a:hover { color: var(--seal); }
.flash {
  font-size: 14px;
  padding: 8px 14px;
  border-radius: 8px;
  margin: 0 0 14px;
  background: color-mix(in srgb, var(--seal) 8%, var(--card));
  border: 1px solid color-mix(in srgb, var(--seal) 28%, var(--line));
}
.flash.muted { background: var(--card); border-color: var(--line); color: var(--ink-2); }
.detail { display: grid; grid-template-columns: 220px 1fr; gap: 38px; align-items: start; }
.detail-side { position: sticky; top: 20px; }
.cover.lg { width: 100%; }
.cover.lg .c-title { font-size: 19px; -webkit-line-clamp: 7; }
.cover.lg .c-author { font-size: 12.5px; }
.cover.lg .c-pub { font-size: 11px; }
.cover-upload { margin-top: 10px; text-align: center; }
.b-title { font-family: var(--serif); font-size: 27px; line-height: 1.35; margin: 0 0 2px; }
.b-subtitle { font-family: var(--serif); font-size: 16.5px; color: var(--ink-2); margin: 0 0 4px; }
.b-byline { font-size: 14px; color: var(--ink-2); margin: 4px 0 16px; }
.b-byline .sep { margin: 0 6px; }

.actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin: 0 0 16px; }
.inline { display: inline; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  color: var(--ink);
  font-size: 14px;
  font-family: var(--sans);
  text-decoration: none;
  cursor: pointer;
}
.btn:hover { border-color: var(--ink-2); }
.btn.primary { background: var(--seal); border-color: var(--seal); color: #f8f1e3; }
.btn.primary:hover { background: var(--seal-deep); border-color: var(--seal-deep); }
.btn.danger { color: var(--seal); }
.btn.danger:hover { background: color-mix(in srgb, var(--seal) 8%, transparent); border-color: var(--seal); }
.btn.small { padding: 4px 11px; font-size: 13px; }
.busy { display: none; font-size: 13px; color: var(--ink-2); }
.busy.htmx-request { display: inline; }
.enrich-url { display: flex; gap: 8px; margin: 0 0 14px; max-width: 620px; }
.enrich-url input { flex: 1; min-width: 0; font-size: 13.5px; }
.prefill-cover { height: 46px; border-radius: 3px; vertical-align: middle; margin-right: 8px; }

.facts { margin: 14px 0 4px; border-top: 1px solid var(--line); }
.facts > div {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.facts dt { color: var(--ink-2); }
.facts dd { margin: 0; }
.facts dd a { text-decoration: underline dotted; text-underline-offset: 3px; }
.facts dd a:hover { color: var(--seal); }
.chip {
  display: inline-block;
  padding: 1px 10px;
  border: 1px solid var(--line);
  border-radius: 99px;
  font-size: 12.5px;
  margin: 0 6px 4px 0;
  color: var(--ink-2);
}

.prose h2, .prose summary {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--ink-2);
  margin: 20px 0 6px;
}
.prose summary { cursor: pointer; }
.prewrap { white-space: pre-wrap; font-size: 14.5px; line-height: 1.85; max-width: 68ch; margin: 6px 0; }
.ext { margin-top: 6px; }
.ext h2 { font-size: 13px; font-weight: 600; letter-spacing: 0.14em; color: var(--ink-2); margin: 20px 0 6px; }
.ext a { font-size: 13.5px; color: var(--ink-2); margin-right: 14px; text-decoration: none; }
.ext a:hover { color: var(--seal); text-decoration: underline; }
.ext-search { margin-top: 14px; font-size: 13.5px; color: var(--ink-2); }
.meta-line {
  margin-top: 26px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--ink-2);
}

/* --- 补全面板 ------------------------------------------------------------- */
.enrich {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--card);
  padding: 12px 16px;
  margin: 0 0 18px;
}
.quiet { color: var(--ink-2); font-size: 13.5px; }
a.quiet { text-decoration: none; }
a.quiet:hover { color: var(--seal); text-decoration: underline; }
.cand { display: flex; gap: 14px; padding: 12px 0; border-top: 1px solid var(--line); }
.cand:first-of-type { border-top: none; }
.cand-cover { width: 54px; height: 76px; object-fit: cover; border-radius: 3px; flex: none;
  box-shadow: 0 2px 6px rgba(20, 16, 8, 0.25); }
.cand-body { min-width: 0; }
.cand-title { font-size: 14.5px; font-weight: 600; margin: 0; }
.src {
  font-size: 11px;
  font-weight: 400;
  color: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 99px;
  padding: 0 8px;
  margin-left: 6px;
  white-space: nowrap;
}
.cand-meta, .cand-desc { font-size: 13px; color: var(--ink-2); margin: 3px 0; }
.cand-actions { display: flex; align-items: center; gap: 14px; margin: 8px 0 0; flex-wrap: wrap; }

/* --- 表单 ----------------------------------------------------------------- */
.page-title { font-family: var(--serif); font-size: 23px; margin: 0 0 18px; }
.book-form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 20px; max-width: 780px; }
.book-form label { display: flex; flex-direction: column; gap: 5px; font-size: 13px; color: var(--ink-2); }
.book-form .full { grid-column: 1 / -1; }
.book-form .check { flex-direction: row; align-items: center; gap: 8px; font-size: 14.5px; color: var(--ink); align-self: end; padding-bottom: 8px; }
.form-actions { display: flex; gap: 10px; margin-top: 6px; }
.form-error {
  color: var(--seal);
  background: color-mix(in srgb, var(--seal) 7%, var(--card));
  border: 1px solid color-mix(in srgb, var(--seal) 30%, var(--line));
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 14px;
  margin: 0 0 14px;
  max-width: 780px;
}
.form-error p { margin: 2px 0; }

/* --- 登录 ----------------------------------------------------------------- */
.login-wrap { display: grid; place-items: center; min-height: 68vh; }
.login-card {
  width: min(330px, 92vw);
  text-align: center;
  padding: 44px 30px 36px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 30px 60px -40px rgba(20, 16, 8, 0.5);
}
.login-title { font-family: var(--serif); font-size: 26px; letter-spacing: 0.5em; text-indent: 0.5em; margin: 16px 0 0; }
.login-sub { font-size: 12px; color: var(--ink-2); letter-spacing: 0.42em; text-indent: 0.42em; margin: 4px 0 26px; }
.login-form { display: flex; flex-direction: column; gap: 10px; }
.login-form .form-error { margin: 0; }

/* --- 移动端 --------------------------------------------------------------- */
@media (max-width: 720px) {
  .page { padding: 2px 14px 48px; }
  header.site { padding: 14px 14px 6px; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(106px, 1fr)); gap: 16px 10px; }
  .c-title { font-size: 12.5px; -webkit-line-clamp: 4; }
  .c-author { font-size: 10px; }
  .c-pub { display: none; }
  .cover.cloth { padding: 9px 8px 7px 10px; border-left-width: 4px; }
  .caption { font-size: 11.5px; }
  .detail { grid-template-columns: 1fr; gap: 22px; }
  .detail-side { position: static; max-width: 210px; }
  .book-form { grid-template-columns: 1fr; }
  .hide-m { display: none; }
  select { max-width: none; flex: 1 1 44%; }
  .exports { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
  .card:hover .cover { transform: none; }
}