*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC",system-ui,sans-serif;background:#fff;color:#1a1a1a;line-height:1.78;font-size:16px}
a{color:#e65100;text-decoration:none}a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
.site-header{background:#fff;border-bottom:2px solid #ffe0b2;position:sticky;top:0;z-index:200}
.header-inner{max-width:1040px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;position:relative}
.brand{display:flex;align-items:center;gap:10px;color:#111;font-weight:600;font-size:.95rem}
.brand em{font-style:normal;color:#e65100;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:#e65100;font-weight:600;border-bottom:2px solid #e65100;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:#fafafa;border-bottom:1px solid #eee;padding:10px 0}
.applist-title{font-size:.78rem;color:#888;text-align:center;margin-bottom:6px}
#ads{display:flex;justify-content:center;flex-wrap:wrap;gap:12px}
.hero-num{max-width:1040px;margin:0 auto;padding:36px 20px 24px;text-align:center}
.hero-num .tag{display:inline-block;font-size:.76rem;color:#e65100;border:1px solid #ffcc80;padding:4px 14px;border-radius:999px;margin-bottom:14px}
.hero-num h1{font-size:1.75rem;line-height:1.35;margin-bottom:16px;color:#111;max-width:820px;margin-left:auto;margin-right:auto}
.hero-num .lead{color:#333;margin-bottom:12px;font-size:1.02rem;text-align:justify;max-width:820px;margin-left:auto;margin-right:auto}
.num-grid{max-width:1040px;margin:0 auto;padding:0 20px 48px;display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.num-card{background:#fff;border:2px solid #ffe0b2;border-radius:16px;padding:24px;position:relative;scroll-margin-top:80px}
.num-card .card-num{position:absolute;top:-14px;left:20px;width:36px;height:36px;border-radius:50%;background:#e65100;color:#fff;font-weight:700;font-size:1rem;display:flex;align-items:center;justify-content:center;box-shadow:0 3px 10px rgba(230,81,0,.3)}
.num-card h2{font-size:1.12rem;margin:8px 0 14px;color:#111;padding-top:4px}
.num-card p{margin-bottom:12px;color:#333;text-align:justify;font-size:.96rem}
.num-card figure{margin:14px 0;border:1px solid #eee;border-radius:10px;overflow:hidden}
.num-card figcaption{font-size:.78rem;color:#666;padding:8px 12px;background:#fff8e1}
.num-card-wide{grid-column:1/-1}
.warn-strip{margin:12px 0;padding:12px 16px;background:#fff3e0;border-left:4px solid #e65100;border-radius:0 8px 8px 0;font-size:.92rem;color:#bf360c}
.faq-block{max-width:1040px;margin:0 auto;padding:0 20px 40px}
.faq-block h2{font-size:1.15rem;margin-bottom:16px;text-align:center;color:#111}
.faq-block details{border:1px solid #ffe0b2;margin-bottom:8px;border-radius:8px}
.faq-block summary{padding:12px 16px;cursor:pointer;font-weight:500;list-style:none}
.faq-block summary::-webkit-details-marker{display:none}
.faq-block details p{padding:12px 16px;color:#444;font-size:.93rem}
.site-footer{background:#fafafa;border-top:1px solid #eee;padding:28px 20px;text-align:center;font-size:.88rem;color:#666}
.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-bottom:10px}
.prose-page{max-width:760px;margin:0 auto;padding:32px 20px 48px}
.prose-page h1{font-size:1.5rem;margin-bottom:16px}
.prose-page p{margin-bottom:12px;color:#333}
@media(max-width:760px){
  .num-grid{grid-template-columns:1fr}
  .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}
}