body{ font-family:system-ui, Arial, sans-serif; margin:0; background:#f4f7fb; color:#0b2236; }
.site-header{ background:#0b6b8a; color:white; padding:18px 20px; text-align:center; }
.center{ padding:30px; text-align:center; }
.logo{ width:180px; border-radius:10px; box-shadow:0 6px 20px rgba(11,38,54,0.12); cursor:pointer; }
.content{ padding:24px; max-width:780px; margin:18px auto; }
.card{ background:white; padding:16px; border-radius:10px; box-shadow:0 6px 18px rgba(10,20,30,0.06); }
.link{ color:#0b6b8a; text-decoration:none; font-weight:600; }