*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Noto Sans SC",system-ui,sans-serif;background:#fff;color:#1a1a1a;line-height:1.75;font-size:16px}
a{color:#0891b2;text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
.container{max-width:1080px;margin:0 auto;padding:0 20px}

.site-header{background:#fff;border-bottom:1px solid #e8e8e8;position:sticky;top:0;z-index:100}
.header-row{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{display:flex;align-items:center;gap:10px;font-size:1.05rem;color:#1a1a1a;font-weight:500}
.brand:hover{text-decoration:none}
.brand b{color:#0891b2;font-weight:700}
.site-nav ul{display:flex;gap:6px 18px;list-style:none;flex-wrap:wrap}
.site-nav a{color:#444;font-size:.92rem;padding:4px 0}
.site-nav a.active{color:#0891b2;font-weight:600;border-bottom:2px solid #0891b2}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:22px;height:2px;background:#333;transition:.2s}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.ads-top-bar{background:#fafafa;border-bottom:1px solid #eee;padding:10px 0}
.applist-title{font-size:.78rem;color:#888;text-align:center;margin-bottom:6px;letter-spacing:.05em}
#ads{display:flex;justify-content:center;flex-wrap:wrap;gap:12px}
#ads .caption{font-size:.7rem;color:#666;margin-top:4px;text-align:center;max-width:70px;line-height:1.3}

/* Dual-rail magazine layout */
.hero-magazine{padding:40px 0 28px;border-bottom:1px solid #eee}
.hero-magazine h1{font-size:1.75rem;line-height:1.35;margin-bottom:18px;color:#111;max-width:720px}
.hero-magazine .lead{color:#444;margin-bottom:14px;font-size:1.02rem;max-width:720px}
.hero-magazine .lead:last-of-type{margin-bottom:0}

.dual-rail{display:grid;grid-template-columns:200px 1fr;gap:36px;padding:32px 0 48px;align-items:start}
.chapter-rail{position:sticky;top:80px}
.chapter-rail h2{font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;color:#888;margin-bottom:14px;font-weight:500}
.chapter-rail ol{list-style:none;counter-reset:ch}
.chapter-rail li{counter-increment:ch;margin-bottom:4px}
.chapter-rail a{display:flex;align-items:baseline;gap:8px;padding:8px 10px;border-radius:6px;font-size:.88rem;color:#555;transition:background .15s}
.chapter-rail a::before{content:counter(ch,decimal-leading-zero);font-size:.75rem;color:#0891b2;font-weight:700;min-width:1.4em}
.chapter-rail a:hover,.chapter-rail a.is-active{background:#ecfeff;color:#0891b2;text-decoration:none}

.magazine-body{display:flex;flex-direction:column;gap:0}
.mag-block{padding:32px 0;border-bottom:1px solid #f0f0f0}
.mag-block:last-child{border-bottom:none}
.mag-block h2{font-size:1.2rem;margin-bottom:14px;color:#111;padding-left:14px;border-left:4px solid #0891b2}
.mag-block p{margin-bottom:12px;color:#333}
.mag-block p:last-child{margin-bottom:0}
.mag-block figure{margin:20px 0}
.mag-block figcaption{font-size:.85rem;color:#777;margin-top:6px}

.pull-quote{float:right;width:220px;margin:0 0 16px 24px;padding:16px 18px;background:#ecfeff;border-left:3px solid #0891b2;font-size:.95rem;color:#0e7490;line-height:1.6;font-style:italic}
.pull-quote::before{content:"\201C";font-size:1.6rem;color:#0891b2;line-height:0;vertical-align:-.3em;margin-right:4px}

.inset-box{background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;padding:16px 20px;margin:16px 0;font-size:.94rem;color:#475569}

.faq{padding:36px 0 48px;border-top:1px solid #eee}
.faq h2{font-size:1.25rem;margin-bottom:18px;color:#111}
.faq details{border:1px solid #e8e8e8;border-radius:8px;margin-bottom:10px;padding:0}
.faq summary{padding:14px 18px;cursor:pointer;font-weight:500;color:#222;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq details[open] summary{border-bottom:1px solid #eee;background:#fafafa}
.faq details p{padding:14px 18px;color:#444;font-size:.95rem}

.site-footer{background:#fafafa;border-top:1px solid #eee;padding:28px 0;margin-top:20px;text-align:center;font-size:.88rem;color:#666}
.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 16px;margin-bottom:10px}
.footer-links a{color:#555}

.prose-page{padding:32px 0 48px}
.prose-page h1{font-size:1.5rem;margin-bottom:16px}
.prose-page h2{font-size:1.15rem;margin:24px 0 10px;color:#222}
.prose-page p{margin-bottom:12px;color:#333}
.error-page{text-align:center;padding:48px 0 24px}
.error-page h1{font-size:3rem;color:#0891b2}

@media(max-width:860px){
  .dual-rail{grid-template-columns:1fr;gap:0}
  .chapter-rail{position:static;margin-bottom:24px;padding-bottom:20px;border-bottom:1px dashed #ddd}
  .chapter-rail ol{display:flex;flex-wrap:wrap;gap:6px}
  .chapter-rail li{margin:0}
  .pull-quote{float:none;width:100%;margin:16px 0}
  .nav-toggle{display:flex}
  .site-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid #eee;padding:12px 20px;box-shadow:0 4px 12px rgba(0,0,0,.06)}
  .site-nav.is-open{display:block}
  .site-nav ul{flex-direction:column;gap:10px}
  .header-row{position:relative;flex-wrap:wrap}
}