:root {
  --paper: #f7f2e7;
  --paper-2: #efe6d5;
  --ink: #2b2620;
  --ink-soft: #5d5445;
  --line: #d8cdb8;
  --gold: #a8843c;
  --cinnabar: #9d3b2c;
  --jade: #4a7c59;
  --water: #35617f;
  --shadow: 0 2px 10px rgba(60, 45, 20, .08);
  --radius: 10px;
  --serif: "Songti SC", "STSong", "SimSun", "Source Han Serif SC", "Noto Serif CJK SC", serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  background: var(--paper);
  background-image:
    radial-gradient(circle at 12% 8%, rgba(168, 132, 60, .07), transparent 45%),
    radial-gradient(circle at 88% 92%, rgba(74, 124, 89, .06), transparent 40%);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.8;
}

a { color: var(--cinnabar); text-decoration: none; }
a:hover { text-decoration: underline; }

.site-header {
  border-bottom: 3px double var(--line);
  background: rgba(255, 253, 246, .75);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(6px);
}

.site-header .bar {
  max-width: 1180px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.brand {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--ink);
  white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.brand small { display: block; font-size: 11px; letter-spacing: 2px; color: var(--ink-soft); font-weight: 400; }

.nav { display: flex; gap: 4px; flex-wrap: wrap; margin-left: auto; }
.nav a {
  padding: 4px 12px;
  border-radius: 999px;
  color: var(--ink-soft);
  font-size: 15px;
  border: 1px solid transparent;
  white-space: nowrap;
}
.nav a:hover { color: var(--cinnabar); border-color: var(--line); text-decoration: none; }
.nav a.active { color: #fff; background: var(--cinnabar); }

/* ---------- 页内入口条（新板块的入口一律加在这一条，不放正文最下面） ---------- */
.fx-toc {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px 9px;
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.fx-toc::-webkit-scrollbar { display: none; }
.fx-toc-lb { flex: none; font-weight: 400; font-size: 12px; letter-spacing: 2px; color: var(--ink-soft); }
.fx-toc-a {
  flex: none;
  padding: 3px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, .55);
  font-size: 13.5px;
  color: var(--ink-soft);
  white-space: nowrap;
}
.fx-toc-a:hover { color: var(--cinnabar); border-color: var(--cinnabar); text-decoration: none; }
.fx-toc-a.on { color: #fff; background: var(--cinnabar); border-color: var(--cinnabar); }
.fx-toc-a.hot { color: var(--cinnabar); border-color: var(--cinnabar); background: rgba(255, 240, 232, .75); font-weight: 700; }
.fx-toc-a.hot i { font-style: normal; margin-left: 5px; padding: 0 4px; border-radius: 4px; background: var(--cinnabar); color: #fff; font-size: 11px; }
/* 未经 JS 的原生锚点 jump 也不被吸顶头栏盖住 */
[id] { scroll-margin-top: 130px; }
@media (max-width: 720px) { [id] { scroll-margin-top: 156px; } }

.page { max-width: 1180px; margin: 0 auto; padding: 26px 20px 70px; }

.page-title { margin: 0 0 6px; font-size: 30px; letter-spacing: 6px; }
.page-sub { margin: 0 0 22px; color: var(--ink-soft); font-size: 14px; }

.card {
  background: rgba(255, 253, 247, .85);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 20px;
}
.card + .card { margin-top: 16px; }
.card h2, .card h3 { margin: 0 0 10px; letter-spacing: 2px; }
.card h2 { font-size: 21px; border-left: 4px solid var(--gold); padding-left: 10px; }
.card h3 { font-size: 17px; color: var(--cinnabar); }

.grid { display: grid; gap: 16px; }
.grid.cols-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

.chip {
  display: inline-block;
  padding: 1px 9px;
  margin: 2px 4px 2px 0;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--paper-2);
  font-size: 13px;
  color: var(--ink-soft);
}
.badge { display: inline-block; padding: 1px 10px; border-radius: 4px; font-size: 13px; letter-spacing: 1px; }
.badge-ji { background: #e6f0e3; color: #33603f; border: 1px solid #b9d4b6; }
.badge-xiong { background: #f6e3df; color: #8d3527; border: 1px solid #e0b6ae; }
.badge-ping { background: #eeeae0; color: #6b6353; border: 1px solid #d5cdbd; }

.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 14px; }
.tabs button {
  font-family: var(--serif);
  font-size: 15px;
  padding: 6px 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .5);
  border-radius: 999px;
  color: var(--ink-soft);
  cursor: pointer;
}
.tabs button:hover { border-color: var(--gold); color: var(--ink); }
.tabs button.active { background: var(--ink); color: var(--paper); border-color: var(--ink); }

table.kv { width: 100%; border-collapse: collapse; font-size: 15px; }
table.kv th, table.kv td { border: 1px solid var(--line); padding: 7px 10px; text-align: left; vertical-align: top; }
table.kv th { background: var(--paper-2); font-weight: 600; letter-spacing: 1px; white-space: nowrap; }
table.kv tr:nth-child(even) td { background: rgba(255, 255, 255, .45); }

input, select, textarea, button { font-family: var(--serif); font-size: 15px; color: var(--ink); }
.field { display: flex; flex-direction: column; gap: 4px; }
.field label { font-size: 13px; color: var(--ink-soft); letter-spacing: 1px; }
input[type=text], input[type=number], input[type=date], select {
  padding: 7px 10px; border: 1px solid var(--line); border-radius: 6px; background: #fffdf8;
}
input:focus, select:focus { outline: 2px solid rgba(168, 132, 60, .35); }
.btn {
  padding: 8px 22px; border: 1px solid var(--ink); background: var(--ink); color: var(--paper);
  border-radius: 6px; cursor: pointer; letter-spacing: 3px; font-size: 16px;
}
.btn:hover { background: var(--cinnabar); border-color: var(--cinnabar); }
.btn.ghost { background: transparent; color: var(--ink); }
.btn.ghost:hover { background: var(--paper-2); color: var(--cinnabar); }

.search-box { width: 100%; max-width: 420px; }

.muted { color: var(--ink-soft); font-size: 14px; }
.small { font-size: 13px; }
.center { text-align: center; }
.hr-note { margin-top: 26px; padding-top: 14px; border-top: 1px dashed var(--line); font-size: 13px; color: var(--ink-soft); }

.footer-disclaimer {
  max-width: 1180px; margin: 0 auto; padding: 16px 20px 40px;
  font-size: 13px; color: var(--ink-soft); text-align: center; line-height: 1.7;
}

/* 首页 */
.hero { text-align: center; padding: 40px 20px 26px; }
.hero h1 { font-size: 40px; letter-spacing: 14px; margin: 0 0 10px; }
.hero p { color: var(--ink-soft); margin: 0 auto; max-width: 640px; }
.module-card { display: block; color: var(--ink); padding: 22px; min-height: 190px; }
.module-card:hover { text-decoration: none; border-color: var(--gold); transform: translateY(-2px); }
.module-card .glyph { font-size: 30px; color: var(--cinnabar); letter-spacing: 3px; }
.module-card h3 { margin: 8px 0 6px; font-size: 19px; color: var(--ink); }
.module-card p { margin: 0; font-size: 14px; color: var(--ink-soft); }

.wuxing-legend { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
.wuxing-legend span { padding: 3px 12px; border-radius: 6px; font-size: 14px; color: #fff; }
.wx-木 { background: #4a7c59; } .wx-火 { background: #b4452f; } .wx-土 { background: #a8843c; }
.wx-金 { background: #7b7f87; } .wx-水 { background: #35617f; }

/* ---------- 版本提示与「发现新版本」条 ---------- */
.footer-disclaimer .fx-ver { float: right; margin-left: 12px; color: var(--ink-soft); font-size: 12px; }
#fs-upd { display: none; }
#fs-upd.on {
  position: fixed; right: 14px; bottom: 14px; z-index: 90;
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: 9px;
  border: 1px solid var(--gold); background: #fffdf6;
  box-shadow: var(--shadow); font-size: 14px; color: var(--ink);
}
#fs-upd.on button { border: 1px solid var(--cinnabar); background: var(--cinnabar); color: #fff; border-radius: 6px; padding: 4px 10px; font: inherit; cursor: pointer; }
#fs-upd.wait { border-style: dashed; }
@media print { #fs-upd, .fx-toc { display: none !important; } }