*,*::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:#37474f;text-decoration:none}a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
.inner{max-width:1080px;margin:0 auto;padding:0 20px}
.site-header{background:#fff;border-bottom:2px solid #263238;position:sticky;top:0;z-index:300;font-family:"Noto Sans SC",sans-serif}
.header-inner{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}
.brand:hover{text-decoration:none}.brand img{border-radius:4px}.brand em{color:#37474f;font-style:normal;font-weight:700}
.site-nav ul{display:flex;flex-wrap:wrap;gap:6px 18px;list-style:none}
.site-nav a{color:#555;font-size:.9rem;padding:4px 0}
.site-nav a.active,.site-nav a:hover{color:#263238;font-weight:600;border-bottom:2px solid #37474f;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:#eceff1;border-bottom:1px solid #b0bec5;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}
.sp-hero{padding:40px 0 28px;border-bottom:1px solid #cfd8dc}
.sp-hero .tag{font-family:"Noto Sans SC",sans-serif;font-size:.76rem;color:#37474f;letter-spacing:.08em;margin-bottom:12px;display:block}
.sp-hero h1{font-size:1.72rem;line-height:1.4;margin-bottom:16px;color:#263238;font-weight:700;max-width:780px}
.sp-hero .lead{color:#333;margin-bottom:12px;font-size:1.02rem;text-align:justify;max-width:780px;font-family:"Noto Sans SC",sans-serif}
.sp-pull{margin:28px 0;padding:24px 32px 24px 48px;border-left:5px solid #78909c;background:#fafafa;position:relative}
.sp-pull::before{content:"\201C";font-size:4rem;color:#b0bec5;line-height:1;position:absolute;top:8px;left:12px;font-family:Georgia,serif}
.sp-pull p{font-size:1.05rem;color:#455a64;font-style:italic;line-height:1.8;margin-bottom:8px}
.sp-pull cite{display:block;font-size:.78rem;color:#78909c;font-style:normal;margin-top:10px;font-family:"Noto Sans SC",sans-serif}
.sp-prose{padding:32px 0 40px;font-family:"Noto Sans SC",sans-serif}
.sp-prose section{margin-bottom:32px;padding-bottom:28px;border-bottom:1px solid #eceff1}
.sp-prose h2{font-size:1.12rem;color:#263238;margin-bottom:12px;font-weight:700}
.sp-prose p{margin-bottom:11px;color:#333;font-size:.96rem;text-align:justify}
.sp-prose ul{margin:10px 0 12px 18px;color:#444;font-size:.92rem}
.sp-prose li{margin-bottom:5px}
.sp-prose figure{margin:16px 0;border:1px solid #cfd8dc}
.sp-prose figcaption{font-size:.78rem;color:#666;padding:6px 10px;background:#fafafa}
.sp-inline{margin:18px 0;padding:14px 20px;background:#eceff1;font-size:.92rem;color:#37474f;border-radius:0 4px 4px 0}
.sp-faq{padding:28px 0 24px;border-top:2px solid #263238;font-family:"Noto Sans SC",sans-serif}
.sp-faq h2{font-size:1.18rem;margin-bottom:16px;color:#263238}
.sp-faq details{border:1px solid #cfd8dc;margin-bottom:8px;background:#fff}
.sp-faq summary{padding:12px 16px;cursor:pointer;font-weight:500;list-style:none}
.sp-faq summary::-webkit-details-marker{display:none}
.sp-faq details[open] summary{border-bottom:1px solid #eceff1;background:#fafafa}
.sp-faq details p{padding:12px 16px;color:#444;font-size:.93rem}
.sp-close{padding:24px 0 36px;font-family:"Noto Sans SC",sans-serif}
.sp-close h2{font-size:1.08rem;margin-bottom:10px;color:#263238}
.sp-close p{margin-bottom:10px;color:#333;font-size:.95rem;text-align:justify}
.related-read{padding:20px 0 36px;border-top:1px solid #cfd8dc;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 #b0bec5;color:#37474f}
.related-grid a:hover{background:#eceff1;text-decoration:none}
.site-footer{background:#fafafa;border-top:2px solid #263238;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 p{margin-bottom:12px;color:#333}
@media(max-width:768px){
.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}
.sp-pull{padding:20px 20px 20px 40px}
}