:root{--navy:#0D1B2A;--navy-2:#12263C;--paper:#F7F5F0;--paper-2:#EFEBE2;--red:#C8372D;--green:#1F7A5C;--ink:#1B2431;--ink-soft:#4A5568;--line:#D8D2C4;--line-dark:#24384F;--r:2px}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans TC",-apple-system,"PingFang TC",sans-serif;background:var(--paper);color:var(--ink);line-height:1.8}
.wrap{max-width:860px;margin:0 auto;padding:0 24px}
nav{position:sticky;top:0;z-index:50;background:var(--navy);color:var(--paper)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--paper)}
.brand svg{width:30px;height:30px}
.brand-name{font-family:"Noto Serif TC",serif;font-weight:900;font-size:18px}
.brand-name small{font-family:"IBM Plex Mono",monospace;font-size:9px;letter-spacing:.26em;color:var(--red);display:block;line-height:1;margin-top:2px;font-weight:600}
.nav-links{display:flex;gap:26px;align-items:center}
.nav-links a{color:#C4CFDB;text-decoration:none;font-size:14.5px;font-weight:500}
.nav-links a:hover{color:#fff}
.btn{display:inline-block;padding:14px 30px;border-radius:var(--r);font-weight:700;font-size:15.5px;text-decoration:none}
.btn-red{background:var(--red);color:#fff}
.btn-sm{padding:9px 20px;font-size:13.5px}
.page-head{background:var(--navy);color:var(--paper);padding:64px 0 52px;position:relative;overflow:hidden}
.page-head::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(247,245,240,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(247,245,240,.035) 1px,transparent 1px);background-size:56px 56px;pointer-events:none}
.page-head .wrap{position:relative}
.eyebrow{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.24em;color:#E8837B;margin-bottom:14px;display:flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:26px;height:2px;background:#E8837B}
.page-head h1{font-family:"Noto Serif TC",serif;font-weight:900;font-size:clamp(28px,4.2vw,40px);line-height:1.35}
.page-head p{margin-top:14px;color:#A9B7C9;font-size:15px;max-width:700px}
.meta{display:flex;gap:18px;flex-wrap:wrap;margin-top:18px;font-family:"IBM Plex Mono",monospace;font-size:11.5px;color:#7FBFA6;letter-spacing:.08em}
.crumbs{font-size:12.5px;color:var(--ink-soft);padding:16px 0 0;font-family:"IBM Plex Mono",monospace}
.crumbs a{color:var(--ink-soft);text-decoration:none}
article{padding:38px 0 20px}
article h2{font-family:"Noto Serif TC",serif;font-weight:900;font-size:26px;margin:44px 0 16px;padding-top:10px;border-top:3px solid var(--navy)}
article h3{font-family:"Noto Serif TC",serif;font-weight:900;font-size:19px;margin:26px 0 10px;color:var(--navy)}
article p{font-size:15.5px;margin-bottom:14px}
article ul,article ol{padding-left:26px;font-size:15.5px;margin-bottom:14px}
article li{margin-bottom:8px}
.callout{border-left:4px solid var(--red);background:var(--paper-2);padding:16px 20px;margin:18px 0;font-size:14.5px}
.callout b{color:var(--red)}
.tl{display:flex;gap:16px;margin:14px 0;background:#fff;border:1px solid var(--line);padding:16px 18px;border-radius:var(--r)}
.tl .d{font-family:"IBM Plex Mono",monospace;font-weight:600;color:var(--red);font-size:14px;min-width:100px;line-height:1.5}
.tl p{margin:0;font-size:14.5px}
table.ref{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);font-size:14px;margin:18px 0}
table.ref th,table.ref td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
table.ref th{background:var(--navy);color:var(--paper);font-family:"Noto Serif TC",serif;font-weight:700}
table.ref a{color:var(--green);font-weight:700;text-decoration:none}
.faq-q{font-weight:700;font-size:15.5px;margin-top:20px;color:var(--navy)}
.legal-note{border:1px dashed var(--line);border-radius:var(--r);padding:14px 18px;font-size:12.5px;color:var(--ink-soft);margin:26px 0;background:var(--paper-2)}
.cta{background:var(--navy);color:var(--paper);text-align:center;padding:52px 24px;margin:50px 0 0}
.cta h2{font-family:"Noto Serif TC",serif;font-weight:900;font-size:26px;margin-bottom:12px}
.cta p{color:#A9B7C9;font-size:15px;max-width:560px;margin:0 auto 24px}
footer{background:var(--navy);color:#8FA0B5;padding:44px 0 34px;font-size:13px;border-top:1px solid var(--line-dark)}
.foot-links{display:flex;gap:20px;flex-wrap:wrap}
.foot-links a{color:#C4CFDB;text-decoration:none}
.foot-links a:hover{color:#fff}
.disclaimer{margin-top:26px;padding-top:22px;border-top:1px solid var(--line-dark);font-size:12px;color:#7A8CA3;line-height:1.8}
.copyright{display:flex;justify-content:space-between;margin-top:16px;font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.12em;color:#54687F;flex-wrap:wrap;gap:8px}
a:focus-visible{outline:2px solid var(--red);outline-offset:2px}
.skip{position:absolute;left:-9999px;top:0;background:var(--red);color:#fff;padding:10px 18px;z-index:100;font-weight:700;text-decoration:none}
.skip:focus{left:12px;top:12px}
.nav-toggle{display:none;background:none;border:1px solid #3A4F68;border-radius:2px;color:var(--paper);width:40px;height:40px;cursor:pointer;font-size:17px;line-height:1}
.figwrap{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px 14px 14px;margin:18px 0;overflow-x:auto}
.figwrap svg{display:block;min-width:760px;width:100%;height:auto}
.figwrap figcaption{font-family:"IBM Plex Mono",monospace;font-size:11.5px;color:var(--ink-soft);letter-spacing:.04em;margin-top:12px;line-height:1.7}
.fc-e{fill:var(--navy)}
.fc-e2{fill:var(--navy-2)}
.fc-s{fill:#fff;stroke:var(--green);stroke-width:1.5}
.fc-x{fill:#fff;stroke:var(--line);stroke-width:1.4;stroke-dasharray:4 3}
.fc-c{fill:#fff;stroke:var(--navy-2);stroke-width:1.6}
.fc-w{stroke:var(--line-dark);stroke-width:1.4;stroke-dasharray:5 4;fill:none}
.fc-t{font-family:"Noto Serif TC",serif;font-weight:700;font-size:15px;fill:#F7F5F0}
.fc-t2{font-family:"Noto Serif TC",serif;font-weight:700;font-size:13.5px;fill:#F7F5F0}
.fc-u{font-size:10.5px;fill:#A9B7C9}
.fc-d{font-family:"Noto Sans TC",sans-serif;font-weight:700;font-size:13.5px;fill:var(--ink)}
.fc-ds{font-size:10.5px;fill:var(--ink-soft)}
.fc-l{font-size:11px;fill:var(--ink-soft)}
.fc-m{font-size:11px;fill:var(--red);font-weight:700}
.fc-conn{stroke:var(--line-dark);stroke-width:1.6;fill:none}
.fc-conn2{stroke:var(--green);stroke-width:1.4;stroke-dasharray:6 4;fill:none}
.fc-conn3{stroke:var(--red);stroke-width:1.3;stroke-dasharray:2 3;fill:none}
.fc-x text,.fc-e text,.fc-e2 text,.fc-s text,.fc-c text{stroke:none}
.fc-x text{fill:var(--ink-soft);font-size:11px}
.fc-e text{fill:var(--navy);font-size:11px;font-weight:700}
.fc-e2 text{fill:var(--navy-2);font-size:11px}
.fc-note{font-size:10.5px;fill:var(--ink-soft)}
@media(max-width:820px){
  .nav-toggle{display:block}
  .nav-links{position:absolute;top:64px;left:0;right:0;background:var(--navy);flex-direction:column;align-items:stretch;padding:10px 24px 18px;gap:2px;display:none;border-bottom:1px solid var(--line-dark)}
  .nav-links.open{display:flex}
  .nav-links a{padding:10px 0}
  .nav-links .btn{margin-top:8px;text-align:center}
  table.ref{display:block;overflow-x:auto}
  .tl{flex-direction:column;gap:6px}
}

.statrow{display:flex;gap:14px;flex-wrap:wrap;margin:20px 0}
.stat{flex:1;min-width:130px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px 16px}
.stat b{display:block;font-family:"IBM Plex Mono",monospace;font-size:22px;color:var(--red);line-height:1.2}
.stat span{font-size:12px;color:var(--ink-soft)}
.viewbox{border:1px solid var(--navy);background:#fff;padding:18px 22px;margin:18px 0;border-radius:var(--r)}
.viewbox h3{margin-top:0}
.series-nav{display:flex;justify-content:space-between;gap:12px;margin:30px 0 10px;flex-wrap:wrap}
.series-nav a{font-size:13px;color:var(--green);font-weight:700;text-decoration:none}
.series-nav a:hover{text-decoration:underline}
.sharebar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:26px 0 0;padding:16px 18px;border:1px solid var(--line);border-radius:var(--r);background:#fff}
.sharebar .sb-l{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.14em;color:var(--ink-soft);margin-right:6px}
.sharebar a,.sharebar .copylink{font-size:13px;font-weight:700;color:var(--navy);text-decoration:none;padding:8px 14px;border:1px solid var(--line);border-radius:var(--r);background:var(--paper);cursor:pointer;font-family:inherit}
.sharebar a:hover,.sharebar .copylink:hover{border-color:var(--navy)}
.sharebar .copylink.copied{color:var(--green);border-color:var(--green)}

.relbox{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:12px 16px;border:1px dashed var(--line);border-radius:var(--r);background:var(--paper-2);margin-bottom:8px;font-size:13px}
.relbox .rel-l{font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.14em;color:var(--ink-soft);margin-right:4px}
.relbox a{color:var(--navy);font-weight:700;text-decoration:none;padding:4px 11px;border:1px solid var(--line);border-radius:var(--r);background:#fff}
.relbox a:hover{border-color:var(--navy)}

/* hub grid cards (series index) */
article .sect{font-family:"Noto Serif TC",serif;font-weight:900;font-size:22px;margin:36px 0 14px;padding-top:18px;border-top:3px solid var(--navy)}
article .sect:first-of-type{margin-top:8px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:900px){.grid3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.grid3{grid-template-columns:1fr}}
.gcard{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px 20px 16px;text-decoration:none;color:var(--ink);transition:transform .18s ease,box-shadow .18s ease,border-color .18s}
.gcard:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(13,27,42,.10);border-color:var(--navy)}
.gcard h3{font-family:"Noto Serif TC",serif;font-weight:900;font-size:16.5px;line-height:1.45;margin:8px 0 8px;color:var(--navy)}
.gcard p{font-size:13px;color:var(--ink-soft);line-height:1.7;margin:0}
.g-tag{font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.12em;color:var(--red);font-weight:600;text-transform:uppercase}
.g-more{display:inline-block;margin-top:12px;font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--green);font-weight:600;letter-spacing:.08em}