*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,'Helvetica Neue',Arial,'Noto Sans',sans-serif;line-height:1.6;background:#f8fafc;color:#111827}
a{color:#2563eb;text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1100px;margin:0 auto;padding:16px}
.header{background:white;border-bottom:1px solid #e5e7eb;position:sticky;top:0;z-index:10}
.nav{display:flex;gap:16px;align-items:center;justify-content:space-between;padding:12px 16px}
.brand{font-weight:700;font-size:20px}
.menu a{margin:0 8px;color:#111827}
.hero{background:linear-gradient(135deg,#eef2ff,#f5f3ff);padding:32px;border-radius:16px;margin:16px 0}
.grid{display:grid;grid-template-columns:2fr 1fr;gap:16px}
.card{background:white;border:1px solid #e5e7eb;border-radius:16px;box-shadow:0 1px 2px rgba(0,0,0,.04);padding:16px;margin-bottom:16px}
.footer{margin-top:24px;background:white;border-top:1px solid #e5e7eb}
.footer-inner{padding:20px}
.ad-container{display:grid;gap:8px;place-items:center;background:#fff;border:1px dashed #d1d5db;border-radius:12px;padding:10px;margin:10px 0}
.ad-note{font-size:12px;color:#6b7280;text-align:center;margin:4px 0 0}
.sticky-bottom{position:fixed;left:0;right:0;bottom:0;background:#ffffffcc;border-top:1px solid #e5e7eb;padding:8px 0;backdrop-filter:blur(6px);z-index:50}
.sticky-inner{max-width:1100px;margin:0 auto;display:flex;justify-content:center;gap:10px;align-items:center}
.badge{font-size:12px;background:#f3f4f6;border:1px solid #e5e7eb;padding:2px 8px;border-radius:999px;color:#374151}
.sidebar .card{position:sticky;top:76px}
.notice{font-size:12px;color:#6b7280}
@media (max-width:900px){.grid{grid-template-columns:1fr}}