/* 仙宗寶鑑 · 古風主題 + 深色模式 */
:root {
  --bg: #f5efe3;
  --bg2: #faf5ea;
  --card: #fffdf7;
  --ink: #3a2e1f;
  --ink2: #7a6a52;
  --accent: #8c5a2b;
  --accent2: #6d4520;
  --border: #d9c9a8;
  --ji: #2e7d32;
  --xiong: #c62828;
  --ban: #b8860b;
  --mark: #ffe58a;
}
/* 仿古宣纸皮肤 */
body[data-skin="gu"] {
  --bg: #ece0c4;
  --bg2: #f3ead2;
  --card: #f6eeda;
  --ink: #2f2a22;
  --ink2: #7a6a4a;
  --accent: #a63a2a;
  --accent2: #8c2f22;
  --border: #b8a583;
  --ji: #3f6b3a;
  --xiong: #a63a2a;
  --ban: #9c7a2c;
  --mark: #e8cf8f;
}
body[data-skin="gu"] nav button.active,
body[data-skin="gu"] button.go,
body[data-skin="gu"] .sec-item.active { background: var(--accent); }
body[data-skin="gu"] header h1 { letter-spacing: 10px; }
/* 墨夜皮肤 */
body[data-skin="dark"] {
  --bg: #1e1a14;
  --bg2: #26211a;
  --card: #2b251c;
  --ink: #e8dcc5;
  --ink2: #a89878;
  --accent: #d9a35e;
  --accent2: #e6b87e;
  --border: #4a4030;
  --ji: #6fbf73;
  --xiong: #ef6a5e;
  --ban: #d4a92c;
  --mark: #6b5710;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Kaiti SC", "KaiTi", "STKaiti", "Songti SC", "STSong", "Noto Serif CJK SC", serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
  padding: 16px;
  transition: background .3s, color .3s;
}
header {
  display: flex; align-items: center; justify-content: center; gap: 14px;
  padding: 20px 0 8px;
}
header h1 { font-size: 30px; letter-spacing: 8px; color: var(--accent); }
header p { font-size: 13px; color: var(--ink2); margin-top: 4px; }
#theme-btn {
  border: 1px solid var(--border); background: var(--card); color: var(--ink);
  font-size: 18px; border-radius: 50%; width: 40px; height: 40px; cursor: pointer;
}
nav {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 6px;
  margin: 16px 0; position: sticky; top: 0; background: var(--bg);
  padding: 8px 0; z-index: 10;
}
nav button {
  border: 1px solid var(--border); background: var(--card);
  color: var(--ink); padding: 8px 14px; font-size: 15px;
  cursor: pointer; border-radius: 4px; font-family: inherit;
}
nav button.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.panel { display: none; max-width: 860px; margin: 0 auto; }
.panel.active { display: block; }
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 8px; padding: 20px; margin-bottom: 16px;
  box-shadow: 0 1px 4px rgba(0,0,0,.06);
}
.card h2 { font-size: 19px; color: var(--accent); margin-bottom: 12px; border-bottom: 1px solid var(--border); padding-bottom: 8px; letter-spacing: 2px; }
label { display: block; font-size: 14px; margin: 8px 0 4px; color: var(--ink2); }
input, select {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border);
  border-radius: 4px; font-size: 15px; font-family: inherit;
  background: var(--bg2); color: var(--ink);
}
input:focus, select:focus { outline: 2px solid var(--accent); border-color: var(--accent); }
.row { display: flex; gap: 12px; }
.row > div { flex: 1; }
button.go {
  margin-top: 14px; background: var(--accent); color: #fff;
  border: none; padding: 10px 26px; font-size: 15px;
  border-radius: 4px; cursor: pointer; font-family: inherit; letter-spacing: 2px;
}
button.go:hover { opacity: .88; }
button.mini {
  border: 1px solid var(--border); background: var(--bg2); color: var(--ink);
  padding: 3px 10px; font-size: 13px; border-radius: 4px; cursor: pointer; font-family: inherit;
}
button.mini:hover { border-color: var(--accent); color: var(--accent); }
.result { margin-top: 12px; font-size: 15px; }
.result table { width: 100%; border-collapse: collapse; margin-top: 8px; }
.result th, .result td { border: 1px solid var(--border); padding: 7px 10px; text-align: center; font-size: 14px; }
.result th { background: var(--bg2); }
.badge { display: inline-block; padding: 2px 10px; border-radius: 12px; font-size: 13px; color: #fff; }
.badge.ji { background: var(--ji); }
.badge.xiong { background: var(--xiong); }
.badge.ban { background: var(--ban); }
.wx-tag { display: inline-block; padding: 1px 8px; border-radius: 3px; color: #fff; font-size: 13px; margin: 0 2px; }
.hint { font-size: 13px; color: var(--ink2); margin-top: 6px; }
.xiong-txt { color: var(--xiong); }
.big { font-size: 22px; letter-spacing: 2px; }
mark { background: var(--mark); color: inherit; padding: 0 1px; border-radius: 2px; }
.hit { border-left: 3px solid var(--accent); padding: 8px 12px; margin: 8px 0; background: var(--bg2); border-radius: 0 4px 4px 0; }
.hit .meta { font-size: 12px; color: var(--ink2); margin-bottom: 4px; }
.snippet { font-size: 14px; margin: 3px 0; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.chip { border: 1px solid var(--border); border-radius: 4px; padding: 4px 10px; font-size: 14px; background: var(--bg2); color: var(--ink); }
.chip small { opacity: .65; font-size: 11px; margin-left: 3px; }
.chip.clickable { cursor: pointer; }
.chip.clickable:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.qa-block { margin-bottom: 16px; }
.qa-block .q { font-weight: bold; color: var(--accent); font-size: 15px; }
.qa-block .a { margin-top: 4px; font-size: 14px; text-align: justify; }
.ref { margin-top: 10px; font-size: 14px; }
.ref summary { cursor: pointer; color: var(--accent); font-size: 14px; }
.ref p { margin-top: 6px; font-size: 14px; }

/* 民间谚语 */
.months-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.month-card {
  background: var(--bg2);
  border: 1px solid var(--border); border-radius: 8px; padding: 14px 16px;
}
.month-title {
  font-size: 18px; color: var(--accent); font-weight: bold;
  border-bottom: 1px dashed var(--border); padding-bottom: 6px; margin-bottom: 8px; letter-spacing: 2px;
}
.proverb-line { font-size: 14px; line-height: 1.9; padding-left: 14px; position: relative; }
.proverb-line::before { content: '·'; position: absolute; left: 2px; color: var(--accent); }
.tianqi-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.tianqi-card { border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px; background: var(--bg2); }
.tianqi-title { font-size: 15px; color: var(--accent); font-weight: bold; margin-bottom: 6px; }

/* 逐日一览 */
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; margin-top: 8px; }
.cal-cell {
  border: 1px solid var(--border); border-radius: 4px; padding: 5px 0;
  text-align: center; font-size: 13px; background: var(--bg2); cursor: default;
}
.cal-good { background: #2e7d3233; border-color: var(--ji); }
.cal-bad { background: #c6282833; border-color: var(--xiong); }
body[data-skin="dark"] .cal-good { background: #2e7d3240; }
body[data-skin="dark"] .cal-bad { background: #c6282840; }

/* 字字典 */
.zidian-card {
  border: 1px solid var(--border); border-radius: 8px; padding: 14px 16px;
  margin: 10px 0; background: var(--bg2);
}
.zidian-head { font-size: 26px; color: var(--accent); display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.zidian-head .wx-tag { font-size: 14px; }

/* 古籍阅读器 */
.reader-wrap .row { align-items: flex-start; }
.section-list {
  border: 1px solid var(--border); border-radius: 6px; max-height: 560px;
  overflow-y: auto; background: var(--bg2);
}
.book-name { font-size: 13px; color: var(--accent); padding: 8px 10px 2px; font-weight: bold; letter-spacing: 1px; }
.sec-item {
  display: block; width: 100%; text-align: left; border: none; background: transparent;
  color: var(--ink); font-family: inherit; font-size: 14px; padding: 6px 10px 6px 16px;
  cursor: pointer; border-bottom: 1px dashed var(--border);
}
.sec-item:hover { background: var(--bg); }
.sec-item.active { background: var(--accent); color: #fff; }
.sec-item small { opacity: .6; font-size: 11px; }
.reader-head { border-bottom: 1px solid var(--border); padding-bottom: 10px; margin-bottom: 10px; }
.reader-title { font-size: 17px; color: var(--accent); letter-spacing: 1px; }
.reader-nav { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin-top: 8px; }
.reader-nav select { width: auto; }
.reader { max-height: 640px; overflow-y: auto; padding-right: 8px; }
.page-box { font-size: 15px; }
.page-mark { color: var(--ink2); font-size: 13px; margin: 10px 0 6px; letter-spacing: 1px; }
.sec-heading { color: var(--accent); font-weight: bold; margin: 10px 0 4px; }
.page-box p { margin: 4px 0; text-align: justify; }

/* 收藏 */
.fav-item { margin: 10px 0; }
.fav-body { font-size: 14px; margin: 6px 0; max-height: 240px; overflow-y: auto; }

/* toast */
#toast {
  position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--accent); color: #fff; padding: 8px 22px; border-radius: 20px;
  font-size: 14px; opacity: 0; pointer-events: none; transition: all .25s; z-index: 99;
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

footer {
  text-align: center; font-size: 12px; color: var(--ink2);
  max-width: 860px; margin: 24px auto 10px; padding-top: 10px; border-top: 1px dashed var(--border);
}

@media (max-width: 600px) {
  .row { flex-direction: column; }
  .cal-grid { grid-template-columns: repeat(4, 1fr); }
  .reader-wrap .row { flex-direction: column; }
  .section-list { max-height: 260px; }
  header h1 { font-size: 24px; }
}

/* 打印 */
@media print {
  nav, header, footer, button, .meta, .hint { display: none !important; }
  body { background: #fff; color: #000; }
  .panel { display: none !important; }
  .panel.active { display: block !important; max-width: 100%; }
  .card { border: none; box-shadow: none; }
}

/* 占候 / 歌诀 / 急救方 */
.poem { border-left: 3px solid var(--accent); padding: 8px 12px; margin: 8px 0; background: var(--bg2); border-radius: 0 6px 6px 0; }
.poem-title { color: var(--accent); font-weight: bold; margin-bottom: 4px; }
.season-btns { display: flex; gap: 8px; margin: 8px 0; }
.season-btns button.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.today-xiu { background: #2e7d3233; border-radius: 4px; font-weight: bold; }
body[data-skin="dark"] .today-xiu { background: #2e7d3240; }
.ref-txt { font-size: 14px; line-height: 2; margin-top: 6px; }
.fav-body { font-size: 14px; margin: 6px 0; }

/* 分组导航 */
#subnav {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 6px;
  margin: -6px 0 14px;
}
#subnav button {
  border: 1px solid var(--border); background: var(--bg2); color: var(--ink);
  padding: 5px 14px; font-size: 14px; cursor: pointer; border-radius: 16px; font-family: inherit;
}
#subnav button.active { background: var(--accent2); color: #fff; border-color: var(--accent2); }
#nav button.group { border-radius: 20px; }
/* 今日总览 */
.zl-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 10px; margin-top: 10px; }
.zl-card {
  border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px;
  background: var(--bg2); font-size: 14px; text-align: center;
}
.zl-card small { color: var(--ink2); font-size: 12px; line-height: 1.6; }
.quick-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; margin-top: 8px; }
.quick-item {
  border: 1px solid var(--border); background: var(--bg2); color: var(--ink);
  border-radius: 8px; padding: 12px 8px; cursor: pointer; font-family: inherit; text-align: center;
}
.quick-item:hover { border-color: var(--accent); color: var(--accent); }
.quick-item b { font-size: 15px; letter-spacing: 2px; }
.quick-item small { color: var(--ink2); font-size: 12px; }
a { color: var(--accent); }

/* 二十四节气表 */
.jq-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); gap: 6px; margin-top: 10px; }
.jq-item {
  border: 1px solid var(--border); border-radius: 8px; background: var(--bg2); color: var(--ink);
  padding: 8px 4px; font-family: inherit; text-align: center; position: relative;
}
.jq-item b { font-size: 14px; letter-spacing: 1px; }
.jq-item small { color: var(--ink2); font-size: 11px; }
.jq-item i {
  font-style: normal; position: absolute; top: 4px; right: 6px; font-size: 11px;
  color: #fff; background: var(--accent); border-radius: 3px; padding: 0 4px;
}
.jq-item.has-zhan { cursor: pointer; }
.jq-item.has-zhan:hover { border-color: var(--accent); }
.jq-item.cur { border-color: var(--xiong); border-width: 2px; }

.sub-h { font-size: 15px; color: var(--accent); margin: 12px 0 4px; letter-spacing: 1px; border-bottom: 1px dashed var(--border); padding-bottom: 4px; }
.cal-cell { cursor: pointer; }

/* 导览 */
.ref-table { width: 100%; border-collapse: collapse; margin-top: 8px; font-size: 14px; }
.ref-table th, .ref-table td { border: 1px solid var(--border); padding: 6px 10px; text-align: left; vertical-align: top; }
.ref-table th { background: var(--bg2); white-space: nowrap; }
.dict-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 8px; margin-top: 8px; }
.dict-item { border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px; background: var(--bg2); font-size: 13px; line-height: 1.7; }
.dict-item b { color: var(--accent); margin-right: 6px; }

/* 古籍竖排阅读 */
.reader.vertical { max-height: none; overflow: visible; }
.vertical .page-box {
  writing-mode: vertical-rl;
  text-orientation: upright;
  letter-spacing: 0.18em;
  line-height: 2.1;
  font-size: 17px;
  column-count: 3;
  column-gap: 2.4em;
  column-rule: 1px dashed var(--border);
  max-height: 78vh;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 8px 2px;
}
.vertical .page-box p { margin: 0; }
.vertical .page-box .sec-heading { margin: 0 0 1em 0; }
.vertical .page-box .page-mark { margin-bottom: 1.4em; }
/* 报告 */
.report-block { border: 1px solid var(--border); border-radius: 8px; padding: 18px 20px; margin-top: 10px; background: var(--bg2); }
.report-block h3 { color: var(--accent); margin: 14px 0 6px; border-bottom: 1px dashed var(--border); padding-bottom: 4px; letter-spacing: 1px; }
.report-block h3:first-child { margin-top: 0; }
.report-line { font-size: 14px; margin: 3px 0; }
.seal {
  display: inline-block; border: 2px solid var(--accent); color: var(--accent);
  border-radius: 6px; padding: 1px 8px; font-size: 13px; margin-left: 8px;
  transform: rotate(-4deg); letter-spacing: 1px;
}
.skin-switch { font-size: 16px; }

/* 图版 */
.page-fig { margin: 10px 0; text-align: center; }
.page-fig .page-img { max-width: 88%; max-height: 76vh; border: 1px solid var(--border); border-radius: 6px; box-shadow: 0 2px 8px rgba(0,0,0,.15); cursor: zoom-in; }
.page-fig figcaption { font-size: 13px; color: var(--ink2); margin-top: 6px; }
.tupu-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; margin-top: 10px; }
.tupu-card { border: 1px solid var(--border); border-radius: 8px; padding: 8px; background: var(--bg2); margin: 0; }
.tupu-card img { width: 100%; height: 130px; object-fit: cover; object-position: top; border-radius: 4px; cursor: zoom-in; border: 1px solid var(--border); }
.tupu-card figcaption { font-size: 13px; margin-top: 6px; color: var(--ink); line-height: 1.5; }
.tupu-card figcaption small { color: var(--ink2); }
#lightbox { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.82); z-index: 999; align-items: center; justify-content: center; padding: 24px; }
#lightbox.show { display: flex; }
.lb-inner { position: relative; max-width: 94vw; max-height: 92vh; }
.lb-inner img { max-width: 94vw; max-height: 86vh; border-radius: 4px; box-shadow: 0 4px 30px rgba(0,0,0,.5); }
.lb-cap { color: #eee; text-align: center; font-size: 14px; margin-top: 8px; }
.lb-close { position: absolute; top: -34px; right: -6px; background: none; border: none; color: #fff; font-size: 28px; cursor: pointer; }