*,*::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:#0e7490;text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}

.site-header{background:#fff;border-bottom:1px solid #e5e7eb;position:sticky;top:0;z-index:200}
.header-inner{max-width:1140px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:#111;font-weight:600;font-size:.98rem}
.brand em{font-style:normal;color:#0e7490;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}
.site-nav a.active{color:#0e7490;font-weight:600;border-bottom:2px solid #0e7490}
.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}

.ads-top-bar{background:#ecfeff;border-bottom:1px solid #a5f3fc;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}
#ads .caption{font-size:.7rem;color:#666;margin-top:4px;text-align:center;max-width:70px}

.wrap{max-width:1140px;margin:0 auto;padding:0 20px}

.banner-top{background:linear-gradient(120deg,#083344 0%,#0e7490 55%,#22d3ee 100%);color:#fff;padding:40px 0 36px;margin-bottom:0}
.banner-top .tag{display:inline-block;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.35);font-size:.76rem;padding:4px 12px;border-radius:999px;margin-bottom:14px}
.banner-top h1{font-size:1.72rem;line-height:1.32;margin-bottom:12px;max-width:820px}
.banner-top .lede{opacity:.92;font-size:1rem;max-width:820px;margin-bottom:8px}

.ribbon-nav{background:#f0fdfa;border-bottom:1px solid #99f6e4;padding:12px 0}
.ribbon-nav ul{display:flex;flex-wrap:wrap;gap:8px;list-style:none}
.ribbon-nav a{font-size:.84rem;color:#0f766e;background:#fff;border:1px solid #5eead4;padding:6px 14px;border-radius:6px}
.ribbon-nav a:hover{background:#ccfbf1;text-decoration:none}

.card-flow{padding:32px 0 40px}
.float-card{background:#fff;border:1px solid #e5e7eb;border-radius:16px;padding:24px 26px;margin-bottom:24px;box-shadow:0 2px 12px rgba(14,116,144,.06);scroll-margin-top:100px}
.float-card h2{font-size:1.22rem;color:#0e7490;margin-bottom:12px;display:flex;align-items:center;gap:10px}
.float-card h2::before{content:"";width:8px;height:28px;background:linear-gradient(#0e7490,#22d3ee);border-radius:4px}
.float-card p{color:#374151;margin-bottom:12px;font-size:.97rem}
.alert-box{background:#fef2f2;border:1px solid #fecaca;color:#991b1b;padding:12px 16px;border-radius:10px;font-size:.9rem;margin:14px 0}
.float-card figure{margin:16px 0;border-radius:12px;overflow:hidden;border:1px solid #e5e7eb}
.float-card figcaption{font-size:.8rem;color:#64748b;padding:10px;background:#f8fafc}

.icon-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:20px 0}
.icon-cell{text-align:center;padding:16px;background:#f0fdfa;border-radius:12px;border:1px solid #99f6e4}
.icon-cell strong{display:block;color:#0e7490;font-size:.92rem;margin-bottom:6px}
.icon-cell span{font-size:.78rem;color:#64748b;line-height:1.5}

.site-footer{background:#f8fafc;border-top:1px solid #e5e7eb;padding:28px 20px;text-align:center}
.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 20px;margin-bottom:10px;font-size:.88rem}
.prose-page{max-width:760px;margin:0 auto;padding:32px 20px 48px}
.error-page{text-align:center;padding:80px 20px}

@media(max-width:768px){
  .nav-toggle{display:flex}
  .site-nav{position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid #e5e7eb;padding:12px 20px;display:none}
  .site-nav.is-open{display:block}
  .site-nav ul{flex-direction:column}
  .site-header{position:relative}
  .icon-row{grid-template-columns:1fr}
}