@font-face{font-family:"DNLatin";src:local("Helvetica Neue"),local("HelveticaNeue"),local("Arial");font-weight:400;unicode-range:U+0000-024F,U+1E00-1EFF,U+2000-206F,U+20A0-20CF,U+2100-214F,U+2190-21FF,U+2200-22FF;}
@font-face{font-family:"DNLatin";src:local("Helvetica Neue Bold"),local("HelveticaNeue-Bold"),local("Arial Bold");font-weight:600 700;unicode-range:U+0000-024F,U+1E00-1EFF,U+2000-206F,U+20A0-20CF,U+2100-214F,U+2190-21FF,U+2200-22FF;}
:root{
  --sans:"DNLatin","Hiragino Sans GB","PingFang SC","Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
  --navy:#16324f;--navy-2:#24507a;--gold:#a67c2e;--gold-soft:#f5ecd9;
  --ink:#1d2329;--ink-2:#46505a;--ink-3:#6b7580;
  --line:#dde2e8;--line-2:#eef1f4;--bg:#f6f7f9;--paper:#fff;--tint:#f3f6fa;--arrow:#8a96a3;
}
*{box-sizing:border-box}
html{scroll-padding-top:64px}
html,body{margin:0;padding:0}
body{font-family:var(--sans);background:var(--bg);color:var(--ink);font-size:15.5px;line-height:1.75;letter-spacing:.012em;
  text-rendering:optimizeLegibility;font-kerning:normal;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  text-align:left;line-break:strict;text-spacing-trim:space-first}
p,li{text-wrap:pretty}

/* 顶部标签条 */
.tagbar{position:sticky;top:0;z-index:50;background:var(--navy);border-bottom:2px solid var(--gold)}
.tagbar-inner{max-width:1040px;margin:0 auto;display:flex;gap:2px;overflow-x:auto;padding:0 12px;scrollbar-width:none}
.tagbar-inner::-webkit-scrollbar{display:none}
.tagbar a{flex:0 0 auto;color:rgba(255,255,255,.72);text-decoration:none;font-size:13.5px;padding:11px 12px 9px;border-bottom:2px solid transparent;margin-bottom:-2px;white-space:nowrap}
.tagbar a:hover{color:#fff}
.tagbar a.on{color:#fff;border-bottom-color:#e2bd73}
.tagbar a.back{color:#e2bd73;font-weight:600;border-right:1px solid rgba(255,255,255,.15);margin-right:6px;padding-right:16px}

main{max-width:1040px;margin:0 auto;padding:28px 20px 64px}
.paper{background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:40px 52px}
h1{font-size:28px;font-weight:700;color:var(--navy);margin:0 0 6px;line-height:1.35}
.lead{color:var(--ink-2);margin:0 0 8px}
h2{font-size:21px;font-weight:700;color:var(--navy);margin:44px 0 16px;padding-top:18px;border-top:1px solid var(--line-2);display:flex;gap:12px;align-items:baseline}
h2 .no{font-size:13px;color:var(--gold);font-weight:700;letter-spacing:.12em}
h3{font-size:17.5px;font-weight:700;color:var(--navy);margin:0 0 12px;display:flex;gap:10px;align-items:baseline}
h3.sub{margin:26px 0 10px}
h3 .tag{font-size:12px;font-weight:700;color:#fff;background:var(--navy-2);padding:1px 8px;border-radius:3px;letter-spacing:.06em;flex:0 0 auto}
h4{font-size:14.5px;font-weight:600;color:var(--gold);margin:16px 0 6px;letter-spacing:.04em}
p{margin:0 0 12px}
ul,ol{margin:0 0 12px;padding-left:1.4em}
li{margin:3px 0}
strong{font-weight:600;color:var(--navy)}

.table-wrap{overflow-x:auto;margin:6px 0 16px}
table{width:100%;border-collapse:collapse;font-size:14.2px;line-height:1.65;font-variant-numeric:tabular-nums lining-nums}
th,td{border:1px solid var(--line);padding:9px 12px;vertical-align:top;text-align:left}
th{background:var(--tint);color:var(--navy);font-weight:600}
td:first-child{min-width:4.5em;max-width:15em;font-weight:600;color:var(--navy)}

.callout{border-left:3px solid var(--gold);background:var(--gold-soft);padding:12px 16px;border-radius:0 6px 6px 0;margin:12px 0 16px}
.module{border:1px solid var(--line);border-radius:6px;padding:22px 26px 12px;margin:0 0 18px;background:#fff}
.module .meta{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:14px 0 10px}
.module .meta div{background:var(--tint);border:1px solid var(--line-2);border-radius:6px;padding:10px 14px;font-size:14.2px}
.module .meta b{display:block;color:var(--gold);font-weight:600;font-size:13px;letter-spacing:.04em;margin-bottom:2px}
.cols{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:0 0 16px}
.cols.two{grid-template-columns:1fr 1fr}
.cols>div{border:1px solid var(--line);border-radius:6px;padding:14px 18px;background:#fff}
.cols h4{margin-top:0}
.cols p,.cols ul{margin:0}

/* 流程步骤条 */
.flow{display:flex;flex-wrap:wrap;align-items:stretch;gap:0;margin:8px 0 16px;row-gap:10px}
.flow .st{flex:0 1 auto;min-width:96px;max-width:180px;border:1px solid var(--navy-2);border-radius:6px;background:var(--tint);padding:8px 12px;font-size:13.5px;line-height:1.5;color:var(--navy)}
.flow .st b{display:block;font-size:11.5px;color:var(--gold);font-weight:700;letter-spacing:.06em}
.flow .st.key{background:var(--gold-soft);border-color:var(--gold)}
.flow .ar{flex:0 0 26px;display:flex;align-items:center;justify-content:center}
.flow .ar::before{content:"";width:16px;height:2px;background:var(--arrow);position:relative}
.flow .ar::after{content:"";border-left:6px solid var(--arrow);border-top:5px solid transparent;border-bottom:5px solid transparent;margin-left:-1px}

/* 功能地图 */
.fmap{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:8px 0 18px}
.fmap .grp{border:1px solid var(--line);border-radius:6px;padding:12px 14px;background:#fff}
.fmap .grp h4{margin:0 0 8px;color:var(--navy);font-size:14px}
.fmap .grp a{display:block;font-size:13.5px;color:var(--ink-2);text-decoration:none;padding:3px 0;border-top:1px dashed var(--line-2)}
.fmap .grp a:first-of-type{border-top:none}
.fmap .grp a:hover{color:var(--gold)}
.fmap .grp a span{color:var(--gold);font-weight:700;margin-right:6px;font-size:12.5px}

footer{text-align:center;color:var(--ink-3);font-size:12.5px;margin-top:28px}

@media (max-width:860px){
  .fmap{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  main{padding:16px 12px 40px}
  .paper{padding:24px 18px}
  h1{font-size:23px}
  .module{padding:18px 16px 8px}
  .module .meta,.cols,.cols.two,.fmap{grid-template-columns:1fr}
  .flow .st{max-width:none}
}
@media print{body{background:#fff}.paper{border:none;padding:0}.tagbar{display:none}.module{break-inside:avoid}}