*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--accent:#dc2626;--accent-light:#fee2e2;--accent-dark:#991b1b;--ink:#1c1917;--muted:#57534e;--line:#fecaca;--max:920px}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{font-family:"Noto Sans SC",system-ui,sans-serif;background:#fffafa;color:var(--ink);line-height:1.82;font-size:16px}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{width:min(100% - 2rem,var(--max));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:2px solid var(--line)}
.header-row{display:flex;align-items:center;justify-content:space-between;min-height:62px;position:relative}
.brand{display:flex;align-items:center;gap:.6rem;font-weight:600;color:var(--ink);text-decoration:none}
.brand b{color:var(--accent)}
.site-nav ul{display:flex;gap:1rem;list-style:none}
.site-nav a{color:var(--muted);font-size:.93rem;text-decoration:none}
.site-nav a.active,.site-nav a:hover{color:var(--accent)}
.nav-toggle{display:none;border:1px solid var(--line);width:40px;height:40px;border-radius:8px;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px;background:#fff}
.nav-toggle span{width:20px;height:2px;background:var(--ink);display:block}
.ads-top-bar{border-bottom:1px solid var(--line);padding:.5rem 0;background:#fff}
.applist-title{font-size:.76rem;color:var(--muted);text-align:center;margin-bottom:.35rem}
#ads{display:flex;justify-content:center;flex-wrap:wrap;gap:.4rem}
.hero{padding:2rem 0 1.25rem;border-bottom:1px solid var(--line)}
.hero h1{font-size:clamp(1.35rem,3vw,1.85rem);line-height:1.35;margin-bottom:1rem;color:var(--ink)}
.hero .lead{color:#44403c;margin-bottom:.75rem;font-size:1.02rem;text-align:justify}
.link-strip{display:flex;flex-wrap:wrap;gap:.65rem;padding:1.25rem 0;border-bottom:2px solid var(--line)}
.link-strip a{padding:.4rem .9rem;border:2px solid var(--accent);border-radius:8px;font-size:.85rem;color:var(--accent-dark);background:#fff;font-weight:500}
.link-strip a:hover{background:var(--accent);color:#fff;text-decoration:none}
.dot-spine-wrap{padding:2rem 0 2.5rem}
.dot-spine{position:relative;padding-left:2.25rem}
.dot-spine::before{content:"";position:absolute;left:.55rem;top:.75rem;bottom:.75rem;border-left:2px dotted var(--accent);opacity:.55}
.dot-section{position:relative;margin-bottom:2rem;display:flex;gap:0}
.dot-node{position:absolute;left:-1.7rem;top:1.35rem;width:.85rem;height:.85rem;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px #fff,0 0 0 5px var(--accent-light);flex-shrink:0}
.dot-body{flex:1;background:#fff;border:1px solid var(--line);border-radius:12px;padding:1.5rem 1.4rem;box-shadow:0 4px 18px rgba(220,38,38,.06)}
.sec-idx{display:inline-block;font-size:.76rem;font-weight:700;color:var(--accent-dark);background:var(--accent-light);padding:.18rem .6rem;border-radius:4px;margin-bottom:.65rem;letter-spacing:.02em}
.dot-body h2{font-size:1.1rem;font-weight:600;line-height:1.4;margin-bottom:.85rem;color:var(--accent-dark)}
.leader-list{margin-bottom:1rem;padding:.75rem .9rem;background:#fff5f5;border:1px dashed var(--line);border-radius:8px}
.leader-row{display:flex;align-items:baseline;gap:.35rem;margin-bottom:.45rem;font-size:.88rem;line-height:1.5}
.leader-row:last-child{margin-bottom:0}
.leader-label{color:var(--ink);font-weight:600;white-space:nowrap}
.leader-dots{flex:1;border-bottom:1px dotted var(--accent);opacity:.45;min-width:1rem;margin:0 .25rem;transform:translateY(-.15rem)}
.leader-value{color:var(--muted);text-align:right;flex-shrink:0;max-width:55%}
.dot-body p{margin-bottom:.85rem;text-align:justify;color:#333;font-size:.96rem}
.dot-body p:last-of-type{margin-bottom:0}
.content-fig img{width:100%;max-width:560px;margin:1.15rem auto 0;border-radius:10px;border:1px solid var(--line)}
.content-fig figcaption{font-size:.78rem;color:var(--muted);margin-top:.35rem;text-align:center}
.faq{margin:2rem 0;padding-top:1.5rem;border-top:2px solid var(--line)}
.faq h2{font-size:1.15rem;margin-bottom:1rem;color:var(--accent-dark)}
.faq details{border:2px solid var(--line);border-radius:10px;padding:.9rem;margin-bottom:.6rem;background:#fff}
.faq summary{cursor:pointer;font-weight:600;list-style:none;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq details p{padding-top:.75rem;font-size:.92rem;color:var(--muted)}
.related-read{margin:2rem 0 3rem;padding:1.2rem;border:2px solid var(--accent);border-radius:12px;background:var(--accent-light)}
.related-read h2{font-size:1rem;margin-bottom:1rem;color:var(--accent-dark)}
.related-grid{display:flex;flex-wrap:wrap;gap:.6rem}
.related-grid a{padding:.4rem .8rem;border:1px solid var(--line);border-radius:8px;font-size:.86rem;color:var(--ink);text-decoration:none;background:#fff}
.related-grid a:hover{border-color:var(--accent);color:var(--accent)}
.page-head{padding:2rem 0 1rem;border-bottom:1px solid var(--line)}
.breadcrumb{font-size:.84rem;color:var(--muted);margin-bottom:.4rem}
.breadcrumb a{color:var(--muted)}
.prose-page{padding:2rem 0 3rem}
.prose-page h2{color:var(--accent);margin:1.4rem 0 .8rem;font-size:1.1rem}
.prose-page p{margin-bottom:.9rem;text-align:justify;color:#333}
.site-footer{border-top:2px solid var(--line);padding:1.6rem 0;text-align:center;color:var(--muted);font-size:.86rem;background:#fff}
.footer-links{display:flex;justify-content:center;gap:1rem;margin-bottom:.5rem;flex-wrap:wrap}
.footer-links a{color:var(--muted);text-decoration:none}
.error-page{min-height:50vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:2rem}
.error-page h1{font-size:3.5rem;color:var(--accent)}
@media(max-width:768px){
  .nav-toggle{display:flex}
  .site-nav{position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:2px solid var(--line);padding:1rem;display:none;box-shadow:0 8px 24px rgba(0,0,0,.06)}
  .site-nav.is-open{display:block}
  .site-nav ul{flex-direction:column}
  .dot-spine{padding-left:1.75rem}
  .dot-node{left:-1.35rem;width:.7rem;height:.7rem}
  .dot-body{padding:1.15rem 1rem}
  .leader-value{max-width:48%;font-size:.82rem}
}