*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Noto Sans SC",system-ui,sans-serif;background:#fff;color:#1c1917;line-height:1.82;font-size:16px}
a{color:#be123c;text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}

.site-header{background:#fff;border-bottom:2px solid #fecdd3;position:sticky;top:0;z-index:500}
.header-inner{max-width:680px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.brand{display:flex;align-items:center;gap:10px;color:#111;font-weight:600;font-size:.92rem;line-height:1.35}
.brand em{font-style:normal;color:#be123c;font-weight:700}
.site-nav ul{display:flex;flex-wrap:wrap;gap:6px 16px;list-style:none}
.site-nav a{color:#444;font-size:.9rem}
.site-nav a.active{color:#be123c;font-weight:600}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:22px;height:2px;background:#333;margin:5px 0;border-radius:1px}

.ads-top-bar{background:#fff1f2;border-bottom:1px solid #fecdd3;padding:10px 0}
#applist .applist-title{font-size:.84rem;color:#6b7280;margin-bottom:8px}
#ads{display:flex;flex-wrap:wrap;gap:12px}

.mono-wrap{max-width:680px;margin:0 auto;padding:0 20px 72px}
.mono-flow{display:flex;flex-direction:column}

.mono-toc{position:sticky;top:58px;z-index:300;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid #fecdd3;padding:11px 0 13px;margin-bottom:18px}
.mono-toc ul{display:flex;flex-wrap:wrap;gap:6px 7px;list-style:none}
.mono-toc a{font-size:.75rem;color:#57534e;background:#fff;padding:5px 10px;border-radius:999px;border:1px solid #fecdd3;white-space:nowrap;transition:background .15s,border-color .15s,color .15s}
.mono-toc a.is-active,.mono-toc a:hover{color:#be123c;border-color:#fda4af;background:#fff1f2}

.mono-hero{padding:34px 0 28px;border-bottom:3px double #be123c;margin-bottom:6px}
.mono-hero .hero-chip{display:inline-block;font-size:.77rem;color:#9f1239;background:#ffe4e6;padding:5px 14px;border-radius:4px 16px 4px 16px;margin-bottom:15px;letter-spacing:.02em}
.mono-hero h1{font-size:clamp(1.42rem,4.1vw,2rem);line-height:1.32;margin-bottom:16px;color:#0c0a09;font-weight:700}
.mono-hero .hero-lede{font-size:1.02rem;color:#292524;margin-bottom:12px}
.mono-hero .hero-note{font-size:.86rem;color:#78716c;margin-top:18px;padding-top:14px;border-top:1px dashed #fecdd3}

.mono-block{padding:28px 0;border-bottom:1px solid #fef2f2}
.mono-block:last-of-type{border-bottom:0}
.mono-block h2{font-size:1.14rem;margin-bottom:14px;color:#0c0a09;padding-left:14px;border-left:4px solid #be123c;line-height:1.4}
.mono-block p{margin-bottom:13px;color:#292524;font-size:.96rem}
.mono-block ul,.mono-block ol{margin:0 0 13px 1.25rem;color:#292524;font-size:.94rem}
.mono-block li{margin-bottom:7px}

.mono-tip{background:#fff7ed;border:1px solid #fed7aa;border-radius:8px;padding:13px 16px;margin:16px 0;font-size:.92rem;color:#7c2d12}
.mono-tip strong{color:#c2410c}

.mono-pull{font-size:1.04rem;font-weight:500;color:#881337;background:linear-gradient(90deg,#fff1f2 0%,transparent 100%);padding:11px 0 11px 18px;margin:18px 0;border-left:3px solid #f43f5e;line-height:1.55}

.mono-fig{margin:20px 0;border-radius:12px;overflow:hidden;border:1px solid #fecdd3;box-shadow:0 3px 14px rgba(190,18,60,.07)}
.mono-fig img{width:100%}
.mono-fig figcaption{font-size:.78rem;color:#78716c;padding:10px 15px;text-align:center;background:#fff1f2}

.mono-steps{counter-reset:step;margin:16px 0;padding:0;list-style:none}
.mono-steps li{counter-increment:step;position:relative;padding:13px 0 13px 46px;border-bottom:1px dotted #fecdd3;font-size:.93rem}
.mono-steps li::before{content:counter(step);position:absolute;left:0;top:13px;width:30px;height:30px;background:#be123c;color:#fff;border-radius:50%;font-size:.82rem;font-weight:700;display:flex;align-items:center;justify-content:center}

.mono-faq{padding:32px 0 16px;margin-top:8px}
.mono-faq>h2{font-size:1.12rem;margin-bottom:18px;padding-left:14px;border-left:4px solid #be123c}
.faq-cell{border-bottom:1px solid #fef2f2;padding:14px 0}
.faq-cell h3{font-size:.98rem;margin-bottom:7px;color:#0c0a09}
.faq-cell p{font-size:.92rem;color:#444;margin:0}

.mono-more{padding:24px 0;border-top:3px double #be123c;margin-top:8px}
.mono-more h2{font-size:1.04rem;margin-bottom:11px}
.mono-more ul{padding-left:1.2rem;line-height:2;font-size:.92rem}

.mono-tail{padding:26px 0 6px;font-size:.93rem;color:#444}
.mono-tail h2{font-size:1.03rem;margin-bottom:11px;color:#0c0a09}

.site-footer{background:#fff1f2;border-top:1px solid #fecdd3;padding:28px 20px;text-align:center;font-size:.87rem;color:#666}
.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 20px;margin-bottom:10px}
.footer-sub{font-size:.8rem;color:#a8a29e;margin-top:6px}
.prose-page{max-width:680px;margin:44px auto;padding:0 20px}
.prose-page h1{font-size:1.4rem;margin-bottom:16px}
.error-page{max-width:480px;margin:80px auto;padding:0 20px;text-align:center}

@media(max-width:768px){
  .nav-toggle{display:block}
  .site-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid #fecdd3;padding:12px 20px;box-shadow:0 8px 24px rgba(0,0,0,.06)}
  .site-nav.is-open{display:block}
  .site-nav ul{flex-direction:column;gap:10px}
  .header-inner{position:relative;flex-wrap:wrap}
  .mono-toc{top:52px}
  .mono-toc a{font-size:.7rem;padding:4px 8px}
}