*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Georgia,"Noto Serif SC",serif;background:#fff;color:#1a1a1a;line-height:1.8;font-size:17px}
a{color:#1565c0;text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:1080px;margin:0 auto;padding:0 22px}
.site-header{background:#fff;border-bottom:2px solid #0d47a1;position:sticky;top:0;z-index:300;font-family:"Noto Sans SC",sans-serif}
.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 i{color:#1565c0;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:#0d47a1;font-weight:600;border-bottom:2px solid #1565c0;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:#e3f2fd;border-bottom:1px solid #90caf9;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 #bbdefb}
.sp-hero .tag{display:inline-block;font-family:"Noto Sans SC",sans-serif;font-size:.76rem;color:#1565c0;border:1px solid #90caf9;padding:4px 14px;margin-bottom:16px;letter-spacing:.03em}
.sp-hero h1{font-size:2rem;line-height:1.3;margin-bottom:18px;font-weight:400;color:#0d47a1;max-width:760px}
.sp-hero .lead{font-family:"Noto Sans SC",sans-serif;color:#333;font-size:1rem;text-align:justify;max-width:760px;margin-bottom:12px}
.sp-body{padding:32px 0 40px}
.sp-article{position:relative;padding-left:0}
.sp-section{margin-bottom:40px;padding-bottom:32px;border-bottom:1px solid #e3f2fd}
.sp-section:last-of-type{border-bottom:none}
.sp-section h2{font-family:"Noto Sans SC",sans-serif;font-size:1.15rem;color:#0d47a1;margin-bottom:14px;font-weight:600}
.sp-section p{font-family:"Noto Sans SC",sans-serif;margin-bottom:12px;color:#333;font-size:.97rem;text-align:justify}
.sp-section ul{margin:10px 0 14px 20px;font-family:"Noto Sans SC",sans-serif;font-size:.93rem;color:#444}
.sp-section li{margin-bottom:6px}
.sp-section figure{margin:18px 0;border:1px solid #ddd}
.sp-section figcaption{font-family:"Noto Sans SC",sans-serif;font-size:.78rem;color:#666;padding:6px 12px;background:#fafafa}
.sp-pull{float:right;width:38%;margin:0 0 18px 24px;padding:20px 22px;background:#e3f2fd;border-top:4px solid #1565c0;font-size:1.05rem;line-height:1.65;color:#0d47a1;font-style:italic}
.sp-pull cite{display:block;margin-top:12px;font-size:.78rem;font-style:normal;color:#546e7a;font-family:"Noto Sans SC",sans-serif}
.sp-pull.left{float:left;margin:0 24px 18px 0}
.sp-callout{clear:both;margin:16px 0;padding:14px 18px;background:#fff8e1;border-left:4px solid #ffc107;font-family:"Noto Sans SC",sans-serif;font-size:.9rem;color:#e65100}
.sp-faq{padding:32px 0;border-top:2px solid #0d47a1;background:#fafafa;font-family:"Noto Sans SC",sans-serif}
.sp-faq h2{font-size:1.2rem;text-align:center;margin-bottom:22px;color:#0d47a1}
.sp-faq details{border:1px solid #bbdefb;margin-bottom:8px;background:#fff;max-width:820px;margin-left:auto;margin-right:auto}
.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 #e3f2fd;background:#e3f2fd}
.sp-faq details p{padding:12px 16px;color:#444;font-size:.93rem}
.sp-close{padding:28px 0 36px;font-family:"Noto Sans SC",sans-serif}
.sp-close h2{font-size:1.1rem;margin-bottom:10px;color:#0d47a1}
.sp-close p{margin-bottom:10px;color:#333;font-size:.95rem;text-align:justify}
.related-read{padding:20px 0 36px;border-top:1px solid #bbdefb;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 #90caf9;color:#1565c0}
.related-grid a:hover{background:#e3f2fd;text-decoration:none}
.site-footer{background:#e3f2fd;border-top:2px solid #0d47a1;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:#1565c0}
@media(max-width:768px){
.nav-toggle{display:flex}
.site-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid #ddd;padding:12px 20px;box-shadow:0 4px 12px rgba(0,0,0,.08)}
.site-nav.is-open{display:block}
.site-nav ul{flex-direction:column;gap:10px}
.sp-pull,.sp-pull.left{float:none;width:100%;margin:0 0 16px}
.sp-hero h1{font-size:1.5rem}
}