html {
  scroll-behavior: smooth;
}
body{
  margin:0;
  background:#0e1730;
  color:#e8e8e8;
  font-family:"Noto Sans","Microsoft YaHei",sans-serif;
  line-height:1.8;
}
header{
  padding:40px 20px 36px;
  text-align:center;
  background:#121f43;
  border-bottom:1px solid rgba(255,255,255,0.1);
}
h1{margin:0;font-size:30px;color:#63b5ff;}
h2{margin-top:45px;font-size:24px;color:#5aaaff;}
h3{margin-top:30px;font-size:20px;color:#7fc5ff;}
.wrap{max-width:900px;margin:auto;padding:22px 20px 40px;}
.btn{
  display:inline-block;
  background:#63b5ff;
  color:#000;
  padding:14px 26px;
  border-radius:8px;
  text-decoration:none;
  font-weight:bold;
  margin-top:18px;
}
.btn-secondary{
  display:inline-block;
  margin-left:12px;
  padding:12px 20px;
  border-radius:8px;
  border:1px solid #63b5ff;
  color:#63b5ff;
  text-decoration:none;
  font-size:14px;
}
.img-box img{
  width:100%;
  height:380px;
  object-fit:cover;
  border-radius:10px;
  margin:24px 0;
}
.grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:20px;
  margin-top:25px;
}
.card{
  background:#15274d;
  padding:20px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,0.1);
}
table{
  width:100%;
  margin-top:22px;
  border-collapse:collapse;
  font-size:14px;
}
table th,table td{
  border:1px solid rgba(255,255,255,0.15);
  padding:10px;
}
blockquote{
  background:#182d59;
  border-left:4px solid #5aaaff;
  padding:16px 20px;
  margin:26px 0;
  border-radius:4px;
}
.timeline{
  margin-top:20px;
  border-left:2px solid rgba(255,255,255,0.15);
  padding-left:16px;
}
.timeline-item{
  margin-bottom:18px;
  position:relative;
}
.timeline-item::before{
  content:"";
  position:absolute;
  left:-11px;
  top:6px;
  width:10px;
  height:10px;
  border-radius:50%;
  background:#63b5ff;
}
.tag{
  display:inline-block;
  font-size:12px;
  padding:2px 8px;
  border-radius:20px;
  border:1px solid rgba(255,255,255,0.2);
  margin-right:6px;
  margin-bottom:4px;
}
footer{
  text-align:center;
  margin-top:20px;
  padding:22px 20px 28px;
  color:#a9b5c9;
  border-top:1px solid rgba(255,255,255,0.1);
  font-size:13px;
}