:root{
  --primary:#173f5f;
  --accent:#d62828;
  --text:#25313c;
  --muted:#66727e;
  --bg:#f6f8fa;
  --card:#ffffff;
  --border:#e2e8ee;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:Arial,Helvetica,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
}
.container{max-width:900px;margin:0 auto;padding:0 22px}
header{
  background:#fff;
  border-bottom:1px solid var(--border);
  position:sticky;top:0;z-index:10;
}
.header-inner{
  min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--primary)}
.brand img{width:52px;height:52px;object-fit:contain;border-radius:8px}
.brand strong{font-size:20px}
nav{display:flex;gap:16px;flex-wrap:wrap}
nav a{color:var(--primary);text-decoration:none;font-size:14px;font-weight:600}
nav a:hover{color:var(--accent)}
main{padding:55px 0}
.hero,.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:14px;
  padding:34px;
  box-shadow:0 5px 20px rgba(20,40,60,.05);
}
.hero{text-align:center}
.hero img{width:90px;height:90px;object-fit:contain;margin-bottom:12px}
h1{color:var(--primary);font-size:34px;line-height:1.2;margin:8px 0 18px}
h2{color:var(--primary);font-size:22px;margin-top:30px}
h3{color:var(--primary);font-size:18px}
p{margin:12px 0}
ul{padding-left:22px}
li{margin:8px 0}
.meta-note{
  background:#f0f5f9;border-left:4px solid var(--primary);
  padding:14px 16px;margin:22px 0;border-radius:6px;
}
footer{background:#173f5f;color:#fff;padding:28px 0;margin-top:30px}
footer a{color:#fff}
.footer-inner{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.small{font-size:13px;color:var(--muted)}
footer .small{color:#dce7ef}
@media(max-width:700px){
  .header-inner{align-items:flex-start;padding:12px 0;flex-direction:column}
  nav{gap:10px}
  main{padding:30px 0}
  .hero,.card{padding:24px 18px}
  h1{font-size:28px}
}