*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC",Georgia,serif;background:#fff;color:#1a1a1a;line-height:1.75;font-size:16px}
a{color:#6a1b9a;text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}

.wrap{max-width:1180px;margin:0 auto;padding:0 20px}

.site-header{background:#fff;border-bottom:2px solid #4a148c;position:sticky;top:0;z-index:300}
.header-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 0;position:relative}
.brand{display:flex;align-items:center;gap:10px;color:#111;font-weight:600;font-size:.95rem;font-family:"Noto Sans SC",sans-serif}
.brand:hover{text-decoration:none}
.brand img{border-radius:4px}
.brand em{color:#6a1b9a;font-style:normal;font-weight:700}
.site-nav ul{display:flex;flex-wrap:wrap;gap:6px 18px;list-style:none;font-family:"Noto Sans SC",sans-serif}
.site-nav a{color:#555;font-size:.9rem;padding:4px 0}
.site-nav a.active,.site-nav a:hover{color:#4a148c;font-weight:600;border-bottom:2px solid #6a1b9a;text-decoration:none}
.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 #ddd;padding:10px 0;font-family:"Noto Sans SC",sans-serif}
.applist-title{font-size:.78rem;color:#888;text-align:center;margin-bottom:6px}
#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}

.sq-hero{padding:32px 0 20px;border-bottom:1px solid #e1bee7}
.sq-hero .tag{display:inline-block;font-size:.78rem;color:#6a1b9a;border:1px solid #ce93d8;padding:4px 12px;margin-bottom:12px;font-family:"Noto Sans SC",sans-serif}
.sq-hero h1{font-size:1.75rem;line-height:1.35;margin-bottom:14px;font-weight:700;max-width:780px}
.sq-hero .lead{color:#333;margin-bottom:10px;font-size:1rem;text-align:justify;max-width:780px;font-family:"Noto Sans SC",sans-serif}

.sq-layout{display:grid;grid-template-columns:240px 1fr;gap:36px;padding:28px 0 32px;align-items:start}
.sq-sidebar{position:sticky;top:88px;font-family:"Noto Sans SC",sans-serif}
.sq-toc{background:#faf5fc;border-left:4px solid #6a1b9a;padding:16px 14px;margin-bottom:20px}
.sq-toc h2{font-size:.82rem;color:#666;margin-bottom:10px;letter-spacing:.05em}
.sq-toc ul{list-style:none}
.sq-toc li{margin-bottom:6px}
.sq-toc a{font-size:.88rem;color:#444;display:block;padding:3px 0}
.sq-toc a:hover{color:#6a1b9a;text-decoration:none;font-weight:600}

.sq-quote{margin-bottom:18px;padding:14px 16px;background:#fff;border:1px solid #e1bee7;border-radius:0 8px 8px 0;position:relative}
.sq-quote::before{content:"\201C";font-size:2.2rem;color:#ce93d8;line-height:1;position:absolute;top:4px;left:10px;font-family:Georgia,serif}
.sq-quote p{font-size:.85rem;color:#555;padding-left:22px;font-style:italic;line-height:1.6}
.sq-quote cite{display:block;font-size:.72rem;color:#888;margin-top:8px;padding-left:22px;font-style:normal}

.sq-main section{margin-bottom:32px;padding-bottom:28px;border-bottom:1px dotted #ddd}
.sq-main section:last-of-type{border-bottom:none}
.sq-main h2{font-size:1.12rem;margin-bottom:12px;color:#4a148c;font-family:"Noto Sans SC",sans-serif;padding-bottom:6px;border-bottom:2px solid #e1bee7}
.sq-main p{margin-bottom:11px;color:#333;font-size:.96rem;text-align:justify;font-family:"Noto Sans SC",sans-serif}
.sq-main ul{margin:10px 0 12px 18px;color:#444;font-size:.92rem;font-family:"Noto Sans SC",sans-serif}
.sq-main li{margin-bottom:5px}
.sq-main figure{margin:16px 0;border:1px solid #ddd}
.sq-main figcaption{font-size:.78rem;color:#666;padding:6px 10px;background:#fafafa;font-family:"Noto Sans SC",sans-serif}

.sq-pull{margin:16px 0;padding:14px 18px;background:#f3e5f5;border-left:4px solid #9c27b0;font-size:.92rem;color:#4a148c;font-family:"Noto Sans SC",sans-serif}
.sq-warn{margin:14px 0;padding:12px 14px;background:#fff8e1;border-left:3px solid #ff8f00;font-size:.9rem;color:#e65100;font-family:"Noto Sans SC",sans-serif}

.sq-faq{padding:28px 0 24px;border-top:2px solid #4a148c}
.sq-faq h2{font-size:1.2rem;margin-bottom:18px;font-family:"Noto Sans SC",sans-serif}
.sq-faq details{border:1px solid #ddd;margin-bottom:8px;background:#fff}
.sq-faq summary{padding:12px 16px;cursor:pointer;font-weight:500;list-style:none;font-family:"Noto Sans SC",sans-serif}
.sq-faq summary::-webkit-details-marker{display:none}
.sq-faq details[open] summary{border-bottom:1px solid #eee;background:#faf5fc}
.sq-faq details p{padding:12px 16px;color:#444;font-size:.93rem;font-family:"Noto Sans SC",sans-serif}

.sq-close{padding:20px 0 36px;font-family:"Noto Sans SC",sans-serif}
.sq-close h2{font-size:1.08rem;margin-bottom:10px;color:#4a148c}
.sq-close p{margin-bottom:10px;color:#333;font-size:.95rem;text-align:justify}

.related-read{padding:20px 0 36px;border-top:1px solid #ddd;font-family:"Noto Sans SC",sans-serif}
.related-read h2{font-size:1rem;margin-bottom:12px}
.related-grid{display:flex;flex-wrap:wrap;gap:10px 16px}
.related-grid a{font-size:.9rem;padding:6px 12px;border:1px solid #ddd;color:#333}
.related-grid a:hover{background:#f3e5f5;text-decoration:none}

.site-footer{background:#fafafa;border-top:2px solid #4a148c;padding:28px 0;text-align:center;font-size:.88rem;color:#666;font-family:"Noto Sans SC",sans-serif}
.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-bottom:10px}
.footer-links a{color:#555}

.prose-page{max-width:720px;margin:0 auto;padding:32px 20px 48px;font-family:"Noto Sans SC",sans-serif}
.prose-page h1{font-size:1.5rem;margin-bottom:16px}
.prose-page h2{font-size:1.1rem;margin:16px 0 8px}
.prose-page p{margin-bottom:12px;color:#333}
.error-page{text-align:center;padding:48px 20px 24px;font-family:"Noto Sans SC",sans-serif}
.error-page h1{font-size:3rem;color:#6a1b9a}

@media(max-width:860px){
  .sq-layout{grid-template-columns:1fr}
  .sq-sidebar{position:static;display:grid;grid-template-columns:1fr 1fr;gap:16px}
}
@media(max-width:640px){
  .sq-sidebar{grid-template-columns:1fr}
  .nav-toggle{display:flex}
  .site-nav{position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid #eee;padding:12px 20px;display:none}
  .site-nav.is-open{display:block}
  .site-nav ul{flex-direction:column;gap:10px}
}