*,*::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:1.78;font-size:16px}
a{color:#be123c;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 #ececec;position:sticky;top:0;z-index:200}
.header-row{display:flex;align-items:center;justify-content:space-between;padding:14px 0;position:relative}
.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:#be123c;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:#be123c;font-weight:600;border-bottom:2px solid #be123c}
.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}

.hero-hub{padding:36px 0 28px;border-bottom:1px solid #f0f0f0;background:linear-gradient(180deg,#fff5f7 0%,#fff 100%)}
.hero-hub .badge{display:inline-block;font-size:.78rem;font-weight:700;color:#be123c;background:#ffe4e6;padding:4px 12px;border-radius:999px;margin-bottom:14px;letter-spacing:.04em}
.hero-hub h1{font-size:1.72rem;line-height:1.42;margin-bottom:16px;color:#111;max-width:820px}
.hero-hub .lead{color:#444;margin-bottom:12px;font-size:1.02rem;max-width:780px}
.hero-hub .lead:last-of-type{margin-bottom:0}

.hub-shell{display:grid;grid-template-columns:220px 1fr;gap:32px;padding:32px 0 48px;align-items:start}
.hub-sidebar{position:sticky;top:72px;background:#fafafa;border:1px solid #eee;border-radius:12px;padding:18px 16px}
.hub-sidebar h2{font-size:.82rem;text-transform:uppercase;letter-spacing:.08em;color:#888;margin-bottom:12px;font-weight:600}
.hub-sidebar ul{list-style:none}
.hub-sidebar a{display:block;padding:8px 10px;border-radius:8px;font-size:.9rem;color:#555;margin-bottom:4px;border-left:3px solid transparent;transition:.15s}
.hub-sidebar a:hover{background:#fff0f3;color:#be123c;text-decoration:none}
.hub-sidebar a.is-active{background:#fff0f3;color:#be123c;border-left-color:#be123c;font-weight:600}

.hub-main{display:flex;flex-direction:column;gap:28px}
.hub-section{background:#fff;border:1px solid #ececec;border-radius:12px;padding:24px 22px;scroll-margin-top:88px}
.hub-section h2{font-size:1.18rem;margin-bottom:12px;color:#222;line-height:1.4;padding-bottom:8px;border-bottom:1px solid #f3f3f3}
.hub-section p{margin-bottom:10px;color:#333;font-size:.97rem}
.hub-section p:last-child{margin-bottom:0}
.hub-section figure{margin:16px 0 4px;border-radius:8px;overflow:hidden;border:1px solid #eee}
.hub-section figcaption{font-size:.84rem;color:#777;margin-top:6px}
.hub-tip{background:#fff5f7;border-left:3px solid #be123c;padding:12px 16px;margin:14px 0 0;font-size:.93rem;color:#444;border-radius:0 6px 6px 0}
.hub-checklist{margin:12px 0 0;padding-left:20px;color:#333}
.hub-checklist li{margin-bottom:6px;font-size:.95rem}

.faq-block{padding:0 0 48px}
.faq-block h2{font-size:1.22rem;margin-bottom:16px;color:#222}
.faq-block details{border:1px solid #eee;border-radius:10px;padding:14px 18px;margin-bottom:10px;background:#fafafa}
.faq-block summary{cursor:pointer;font-weight:600;color:#333;font-size:.98rem}
.faq-block details p{margin-top:10px;color:#444;font-size:.95rem}

.site-footer{background:#fafafa;border-top:1px solid #eee;padding:28px 0;margin-top:8px;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:#be123c}

@media(max-width:860px){
  .hub-shell{grid-template-columns:1fr;gap:20px}
  .hub-sidebar{position:static}
  .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;box-shadow:0 4px 12px rgba(0,0,0,.06)}
  .site-nav.is-open{display:block}
  .site-nav ul{flex-direction:column;gap:0}
  .site-nav li{border-bottom:1px solid #f0f0f0}
  .site-nav a{display:block;padding:12px 0}
  .hero-hub h1{font-size:1.32rem}
}