:root{
  --ink:#1a1614; --ink-2:#4a423d; --ink-3:#7d736c;
  --paper:#f7f4ee; --paper-2:#fffdf9; --line:#e2dad0; --line-2:#cfc4b6;
  --seal:#9c2b21; --seal-soft:#c4503f; --indigo:#2f4858; --jade:#2f6e5e;
  --gold:#a8842c;
  --serif:"Songti SC","STSong","SimSun","Noto Serif SC",serif;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --mono:"SFMono-Regular",Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--paper); color:var(--ink);
  font-family:var(--sans); font-size:16px; line-height:1.85;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(circle at 12% 8%, rgba(168,132,44,.05), transparent 42%),
    radial-gradient(circle at 88% 4%, rgba(47,72,88,.05), transparent 38%);
  background-attachment:fixed;
}
a{color:var(--indigo); text-decoration:none}
a:hover{color:var(--seal)}
.top{
  position:sticky; top:0; z-index:50;
  display:flex; align-items:center; gap:28px; flex-wrap:wrap;
  padding:12px 28px;
  background:rgba(247,244,238,.93); backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.brand{
  font-family:var(--serif); font-size:23px; font-weight:700;
  color:var(--ink); letter-spacing:.12em; white-space:nowrap;
}
.brand::before{content:"☰"; color:var(--seal); margin-right:9px; font-size:19px}
.top nav{display:flex; gap:4px; flex-wrap:wrap; margin-left:auto}
.top nav a{
  padding:6px 13px; border-radius:3px; font-size:15px; color:var(--ink-2);
  letter-spacing:.05em; transition:.16s;
}
.top nav a:hover{background:rgba(156,43,33,.07); color:var(--seal)}
.top nav a.active{background:var(--seal); color:#fff}
main{max-width:1180px; margin:0 auto; padding:36px 28px 80px}
footer{
  border-top:1px solid var(--line); background:rgba(255,253,249,.6);
  padding:26px 28px; text-align:center; color:var(--ink-3); font-size:13.5px;
}
footer code{font-family:var(--mono); font-size:12.5px; background:rgba(0,0,0,.05); padding:1px 5px; border-radius:3px}

h1,h2,h3,h4{font-family:var(--serif); font-weight:700; line-height:1.4; letter-spacing:.02em}
h1{font-size:34px; margin:0 0 14px}
h2{font-size:25px; margin:44px 0 16px; padding-bottom:9px; border-bottom:2px solid var(--line-2)}
h3{font-size:19px; margin:26px 0 10px}
.lead{font-size:17.5px; color:var(--ink-2); margin:0 0 26px; line-height:1.95}
.muted{color:var(--ink-3); font-size:14px}
.seal-tag{
  display:inline-block; background:var(--seal); color:#fff; font-size:12.5px;
  padding:2px 10px; border-radius:2px; letter-spacing:.1em; vertical-align:middle;
}
.tier{
  display:inline-block; font-size:12px; padding:1px 8px; border-radius:2px;
  border:1px solid var(--line-2); color:var(--ink-2); background:var(--paper-2);
}

/* 卡片 */
.grid{display:grid; gap:16px; grid-template-columns:repeat(auto-fill,minmax(268px,1fr))}
.card{
  background:var(--paper-2); border:1px solid var(--line); border-radius:5px;
  padding:18px 20px; transition:.18s; display:flex; flex-direction:column;
}
.card:hover{border-color:var(--line-2); box-shadow:0 3px 16px rgba(26,22,20,.07); transform:translateY(-2px)}
.card h3{margin:0 0 8px; font-size:17.5px}
.card p{margin:0; font-size:14px; color:var(--ink-2); line-height:1.75}
.card .meta{margin-top:auto; padding-top:11px; font-size:12.5px; color:var(--ink-3);
  border-top:1px dashed var(--line); display:flex; justify-content:space-between; gap:8px}

/* 文章排版 */
.doc{background:var(--paper-2); border:1px solid var(--line); border-radius:5px; padding:32px 40px}
.doc h1{font-size:27px; border-bottom:2px solid var(--line-2); padding-bottom:12px; margin-bottom:20px}
.doc h2{font-size:22px; margin-top:36px}
.doc h3{font-size:18px; color:var(--seal-soft); margin-top:26px}
.doc h4{font-size:16px; color:var(--indigo); margin-top:20px}
.doc p{margin:13px 0}
.doc ul,.doc ol{margin:13px 0; padding-left:26px}
.doc li{margin:6px 0}
.doc hr{border:none; border-top:1px solid var(--line); margin:30px 0}
.doc blockquote{
  margin:18px 0; padding:13px 20px; background:rgba(47,110,94,.055);
  border-left:4px solid var(--jade); border-radius:0 4px 4px 0; color:var(--ink-2);
  font-family:var(--serif); font-size:16.5px; line-height:1.95;
}
.doc code{font-family:var(--mono); font-size:13.5px; background:rgba(0,0,0,.05); padding:1px 5px; border-radius:3px}
.doc pre.chart{
  font-family:var(--mono); font-size:15px; line-height:1.35; margin:16px 0;
  padding:16px 20px; background:rgba(0,0,0,.035); border-left:3px solid var(--line-2);
  border-radius:0 4px 4px 0; overflow-x:auto; white-space:pre; letter-spacing:.1em;
  color:var(--ink);
}
.doc table{border-collapse:collapse; width:100%; margin:18px 0; font-size:14.5px; display:block; overflow-x:auto}
.doc th,.doc td{border:1px solid var(--line-2); padding:8px 13px; text-align:left; vertical-align:top}
.doc th{background:rgba(168,132,44,.09); font-weight:600; white-space:nowrap}

/* 工具条 */
.bar{display:flex; gap:10px; flex-wrap:wrap; align-items:center; margin:20px 0 24px}
input[type=search],input[type=text],select{
  font-family:var(--sans); font-size:14.5px; padding:9px 14px;
  border:1px solid var(--line-2); border-radius:4px; background:var(--paper-2);
  color:var(--ink); outline:none; min-width:150px;
}
input:focus,select:focus{border-color:var(--seal)}
button{
  font-family:var(--sans); font-size:14.5px; padding:9px 18px; cursor:pointer;
  border:1px solid var(--seal); background:var(--seal); color:#fff; border-radius:4px;
  transition:.16s;
}
button:hover{background:var(--seal-soft); border-color:var(--seal-soft)}
button.ghost{background:transparent; color:var(--seal)}
button.ghost:hover{background:rgba(156,43,33,.08)}
.chips{display:flex; gap:7px; flex-wrap:wrap; margin:12px 0}
.chip{
  font-size:13px; padding:4px 13px; border-radius:20px; cursor:pointer;
  border:1px solid var(--line-2); background:var(--paper-2); color:var(--ink-2);
  user-select:none; transition:.15s;
}
.chip:hover{border-color:var(--seal); color:var(--seal)}
.chip.on{background:var(--seal); color:#fff; border-color:var(--seal)}

/* 排盘盘面 */
.pp-wrap{display:grid; grid-template-columns:300px 1fr; gap:24px; align-items:start}
@media(max-width:900px){.pp-wrap{grid-template-columns:1fr}}
.panel{background:var(--paper-2); border:1px solid var(--line); border-radius:5px; padding:20px 22px}
.panel h3{margin:0 0 14px; font-size:17px; color:var(--seal-soft)}
.field{margin-bottom:14px}
.field label{display:block; font-size:13.5px; color:var(--ink-2); margin-bottom:6px}
.field select,.field input{width:100%}
.pan{
  display:grid; grid-template-columns:repeat(4,1fr); gap:7px;
  background:#f3ede2; border:1px solid var(--line-2); border-radius:4px; padding:9px;
}
.cell{
  background:var(--paper-2); border:1px solid var(--line); border-radius:3px;
  padding:9px 5px; text-align:center; position:relative; min-height:74px;
  display:flex; flex-direction:column; justify-content:center; gap:3px;
}
.cell .jiang{font-size:11.5px; color:var(--seal); letter-spacing:.04em; line-height:1.3}
.cell .zhi{font-family:var(--serif); font-size:25px; font-weight:700; line-height:1.15}
.cell .gan{font-size:12.5px; color:var(--ink-3); line-height:1.2}
.cell.empty{background:transparent; border-style:dashed; border-color:var(--line); min-height:0}
.tianpan{margin-top:7px; font-size:11.5px; color:var(--jade); letter-spacing:.1em}
.sanchuan{display:flex; align-items:center; gap:11px; flex-wrap:wrap; margin:18px 0 8px}
.sanchuan .z{
  font-family:var(--serif); font-size:25px; font-weight:700;
  background:var(--paper-2); border:1px solid var(--line-2); border-radius:4px;
  padding:9px 17px; min-width:62px; text-align:center;
}
.sanchuan .z small{display:block; font-size:12px; color:var(--seal); font-family:var(--sans); font-weight:400; margin-top:3px}
.sanchuan .arw{color:var(--line-2); font-size:20px}
.keti{
  display:inline-block; background:rgba(47,72,88,.09); color:var(--indigo);
  padding:4px 14px; border-radius:3px; font-size:14px; margin-left:6px;
}
.sike{display:flex; gap:8px; flex-wrap:wrap}
.sike .k{
  font-family:var(--serif); font-size:16px; background:var(--paper-2);
  border:1px solid var(--line-2); border-radius:3px; padding:7px 13px;
}
.sike .k b{color:var(--seal); font-weight:700}
.result{margin-top:20px; padding:15px 19px; background:rgba(168,132,44,.07);
  border-left:4px solid var(--gold); border-radius:0 4px 4px 0; font-size:15px; line-height:1.9}
.result b{color:var(--seal)}
.self-test{margin-top:14px; font-size:13.5px; color:var(--ink-2)}
.self-test .ok{color:var(--jade); font-weight:600}
.self-test .bad{color:var(--seal); font-weight:600}

/* 章节导航 */
.toc{background:var(--paper-2); border:1px solid var(--line); border-radius:5px; padding:18px 22px; margin-bottom:24px}
.toc h3{margin:0 0 10px; font-size:16px}
.toc ol{margin:0; padding-left:22px; columns:2; column-gap:28px; font-size:14px}
@media(max-width:720px){.toc ol{columns:1}}
.toc a{display:block; padding:2px 0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.chunk{scroll-margin-top:80px}

/* 列表 */
.row{
  display:flex; gap:15px; align-items:baseline;
  padding:11px 15px; border-bottom:1px solid var(--line);
  transition:.14s;
}
.row:hover{background:rgba(168,132,44,.05)}
.row .no{
  font-family:var(--serif); color:var(--seal); font-weight:700;
  min-width:42px; font-size:15px; flex-shrink:0;
}
.row .ti{flex:1; min-width:0}
.row .ti b{font-weight:600}
.row .ti .d{display:block; font-size:13.5px; color:var(--ink-3); margin-top:2px;
  overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.row .rt{font-size:12.5px; color:var(--ink-3); flex-shrink:0; white-space:nowrap}
.list{background:var(--paper-2); border:1px solid var(--line); border-radius:5px; overflow:hidden}

/* 音频 */
.player{
  display:flex; align-items:center; gap:14px; flex-wrap:wrap;
  background:var(--paper-2); border:1px solid var(--line);
  border-radius:5px; padding:14px 18px; margin-bottom:11px;
}
.player .nm{flex:1; min-width:180px}
.player .nm b{display:block; font-size:15.5px; font-family:var(--serif)}
.player .nm span{font-size:12.5px; color:var(--ink-3); font-family:var(--mono)}
.player audio{height:36px; min-width:250px; max-width:100%}
audio{width:100%}

.note-box{
  background:rgba(47,72,88,.06); border-left:4px solid var(--indigo);
  border-radius:0 4px 4px 0; padding:14px 20px; margin:20px 0; font-size:14.5px;
}
.warn-box{
  background:rgba(156,43,33,.06); border-left:4px solid var(--seal);
  border-radius:0 4px 4px 0; padding:14px 20px; margin:20px 0; font-size:14.5px;
}
.empty-tip{text-align:center; color:var(--ink-3); padding:44px 0; font-size:15px}
.backlink{display:inline-block; margin-bottom:16px; font-size:14px; color:var(--ink-2)}
.backlink::before{content:"← "; color:var(--seal)}
a.btn-dl{
  display:inline-block; background:var(--seal); color:#fff; padding:9px 20px;
  border-radius:4px; font-size:14.5px; transition:.16s;
}
a.btn-dl:hover{background:var(--seal-soft); color:#fff}

/* 首页 */
.hero{
  background:var(--paper-2); border:1px solid var(--line); border-radius:6px;
  padding:40px 44px; margin-bottom:34px; position:relative; overflow:hidden;
}
.hero::after{
  content:"壬"; position:absolute; right:-18px; bottom:-58px;
  font-family:var(--serif); font-size:250px; color:rgba(156,43,33,.055);
  line-height:1; pointer-events:none;
}
.hero h1{font-size:38px; margin-bottom:12px}
.hero p{font-size:17px; color:var(--ink-2); max-width:720px; margin:0 0 20px; line-height:1.95}
.stats{display:flex; gap:30px; flex-wrap:wrap; margin-top:24px; padding-top:22px; border-top:1px solid var(--line)}
.stat b{display:block; font-family:var(--serif); font-size:29px; color:var(--seal); line-height:1.2}
.stat span{font-size:13px; color:var(--ink-3)}
.path{display:grid; gap:12px; grid-template-columns:repeat(auto-fit,minmax(230px,1fr)); counter-reset:p}
.path .step{
  background:var(--paper-2); border:1px solid var(--line); border-radius:5px;
  padding:17px 19px; counter-increment:p; position:relative;
}
.path .step::before{
  content:counter(p,decimal-leading-zero); font-family:var(--serif);
  font-size:14px; color:var(--seal); font-weight:700; display:block; margin-bottom:6px;
}
.path .step h4{margin:0 0 6px; font-size:16px; font-family:var(--serif)}
.path .step p{margin:0; font-size:13.5px; color:var(--ink-2); line-height:1.7}
.hr-soft{border:none; border-top:1px solid var(--line); margin:40px 0}