body{
font-family:system-ui;
margin:0;
background:#0f1115;
color:#e6e6e6;
}

/* top banner */
#topbar{
position:fixed;
top:0;
left:0;
right:0;
height:48px;
background:linear-gradient(90deg,#f0b90b,#ffdd55);
color:#111;
display:flex;
align-items:center;
justify-content:center;
gap:14px;
font-weight:600;
z-index:9999;
box-shadow:0 2px 10px rgba(0,0,0,.2);
}

#topbar a{
background:#111;
color:#fff;
padding:6px 12px;
border-radius:8px;
text-decoration:none;
}

#topbar button{
position:absolute;
right:10px;
border:none;
background:none;
font-size:18px;
cursor:pointer;
}

body{margin-top:48px;}

header{
padding:30px 20px;
text-align:center;
font-size:28px;
font-weight:bold;
}

.card{
display:block;
padding:20px;
margin:20px;
background:#1a1d24;
border-radius:14px;
text-decoration:none;
color:#fff;
}

article{
max-width:800px;
margin:80px auto;
padding:20px;
line-height:1.7;
}

.share{
text-align:center;
margin:40px;
}

.share a{
margin:0 8px;
padding:10px 14px;
background:#1a1d24;
border-radius:10px;
text-decoration:none;
color:#fff;
}