*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--accent:#7c3aed;--accent-light:#ede9fe;--ink:#1c1917;--muted:#57534e;--line:#e7e5e4;--sidebar:250px}
body{font-family:"Noto Sans SC",system-ui,sans-serif;background:#fff;color:var(--ink);line-height:1.82;font-size:16px}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent)}a:hover{text-decoration:underline}
.container{width:min(100% - 2rem,1080px);margin-inline:auto}
.site-header{position:sticky;top:0;z-index:200;background:#fff;border-bottom:1px solid var(--line)}
.header-row{display:flex;align-items:center;justify-content:space-between;min-height:62px}
.brand{display:flex;align-items:center;gap:.6rem;font-weight:600;color:var(--ink)}.brand b{color:var(--accent)}
.site-nav ul{display:flex;gap:1rem;list-style:none}.site-nav a{color:var(--muted);font-size:.93rem}
.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;transition:transform .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{border-bottom:1px solid var(--line);padding:.5rem 0;background:#fff}
.applist-title{font-size:.76rem;color:var(--muted);text-align:center}
#ads{display:flex;justify-content:center;flex-wrap:wrap;gap:.4rem}
.layout-main{display:grid;grid-template-columns:var(--sidebar) 1fr;gap:2rem;padding:2rem 0 3rem;align-items:start}
.sidebar-toc{position:sticky;top:78px;padding:1.15rem;border:1px solid var(--line);border-radius:12px;background:#fafafa}
.sidebar-toc h2{font-size:.82rem;letter-spacing:.05em;color:var(--muted);margin-bottom:.75rem}
.sidebar-toc ol{list-style:none}
.sidebar-toc a{display:block;font-size:.86rem;color:var(--muted);padding:.35rem .45rem;border-radius:6px;border-left:3px solid transparent}
.sidebar-toc a:hover{color:var(--accent);background:var(--accent-light);border-left-color:var(--accent);text-decoration:none}
.content-col article{margin-bottom:2.2rem;padding-bottom:2rem;border-bottom:1px solid var(--line)}
.content-col article:last-child{border-bottom:none}
.content-col h1{font-size:clamp(1.45rem,3vw,2rem);line-height:1.35;margin-bottom:1rem}
.content-col h2{font-size:1.12rem;color:var(--accent);margin:0 0 .8rem}
.content-col p,.content-col li{margin-bottom:.88rem;text-align:justify;color:#333}
.content-col figure{margin:1.1rem 0;border-radius:10px;overflow:hidden;border:1px solid var(--line)}
.content-col figcaption{font-size:.76rem;color:var(--muted);padding:.45rem;text-align:center;background:#fafafa}
.pullquote{margin:1.1rem 0;padding:.95rem 1.1rem;background:var(--accent-light);border-left:4px solid var(--accent);border-radius:0 10px 10px 0}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin:1rem 0}
.card-mini{padding:.95rem;border:1px solid var(--line);border-radius:10px;background:#fff}
.card-mini h3{font-size:.92rem;color:var(--accent);margin-bottom:.45rem}
.faq-section{padding:2rem 0;border-top:1px solid var(--line)}
.faq-section details{border:1px solid var(--line);border-radius:10px;padding:.9rem;margin-bottom:.6rem;background:#fff}
.faq-section summary{cursor:pointer;font-weight:600}
.related-read{margin:2rem 0;padding:1.2rem;border:1px solid var(--line);border-radius:12px;background:#fafafa}
.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}
.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:1px solid var(--line);padding:1.6rem 0;text-align:center;color:var(--muted);font-size:.86rem}
.footer-links{display:flex;justify-content:center;gap:1rem;margin-bottom:.5rem;flex-wrap:wrap}
.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:900px){.layout-main{grid-template-columns:1fr}.sidebar-toc{position:static}.two-col{grid-template-columns:1fr}}
@media(max-width:768px){.site-nav{position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px 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}.nav-toggle{display:flex}}