*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Segoe UI',Arial,sans-serif;color:#1a2332;background:#f4f6f9;line-height:1.7}
.wrap{max-width:920px;margin:0 auto;padding:0 20px}
header.site{background:#0e1f38;color:#fff;padding:18px 0;position:sticky;top:0;z-index:10;box-shadow:0 2px 12px rgba(0,0,0,.15)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px}
header.site a.logo{color:#fff;text-decoration:none;font-weight:700;font-size:19px;letter-spacing:.5px}
header.site .logo span{color:#e69128}
header.site nav a{color:#dfe6f0;text-decoration:none;margin-left:22px;font-size:15px}
header.site nav a:hover{color:#e69128}
.hero{background:linear-gradient(135deg,#0e1f38,#1c3a63);color:#fff;padding:54px 0 46px;margin-bottom:38px}
.hero h1{font-size:34px;margin-bottom:12px}
.hero p{color:#b9c7da;font-size:17px;max-width:640px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px;padding-bottom:60px}
.card{background:#fff;border-radius:12px;overflow:hidden;text-decoration:none;color:inherit;box-shadow:0 2px 14px rgba(14,31,56,.08);transition:.2s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);box-shadow:0 8px 26px rgba(14,31,56,.16)}
.card .thumb{height:150px;background:linear-gradient(135deg,#1c3a63,#2c5282);display:flex;align-items:center;justify-content:center;color:#e69128;font-size:40px;font-weight:800}
.card .body{padding:20px;flex:1;display:flex;flex-direction:column}
.card h2{font-size:18px;line-height:1.4;margin-bottom:10px;color:#0e1f38}
.card .lead{font-size:14px;color:#5a6b80;flex:1}
.card .more{margin-top:14px;color:#e69128;font-weight:600;font-size:14px}
article.post{background:#fff;border-radius:12px;padding:44px 46px;box-shadow:0 2px 14px rgba(14,31,56,.08);margin:34px auto 60px;max-width:820px}
article.post h1{font-size:30px;color:#0e1f38;line-height:1.3;margin-bottom:18px}
article.post img.cover{width:calc(100% + 92px);margin:-44px -46px 26px;display:block;border-radius:12px 12px 0 0}
article.post .lead{font-size:19px;color:#334;border-left:4px solid #e69128;padding-left:18px;margin-bottom:26px;font-style:italic}
article.post h3{font-size:19px;color:#1c3a63;margin:26px 0 10px}
article.post p{margin-bottom:16px;color:#26313f}
article.post ul{margin:0 0 18px 22px}
article.post li{margin-bottom:8px}
article.post .tips{background:#f7f9fc;border-radius:10px;padding:22px 26px;margin:26px 0}
article.post .tips h3{margin-top:0}
article.post .concl{background:#0e1f38;color:#e8eef7;border-radius:10px;padding:24px 28px;margin-top:28px}
article.post .concl h3{color:#e69128;margin-top:0}
article.post .concl p{color:#cdd9e8}
.cta{background:linear-gradient(135deg,#e69128,#c9760f);color:#fff;border-radius:10px;padding:22px 28px;margin-top:30px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px}
.cta b{font-size:18px}
.cta a{background:#0e1f38;color:#fff;text-decoration:none;padding:12px 22px;border-radius:8px;font-weight:600;white-space:nowrap}
footer.site{background:#0e1f38;color:#8fa3bd;padding:30px 0;text-align:center;font-size:14px}
footer.site a{color:#e69128;text-decoration:none}
.back{display:inline-block;margin-bottom:6px;color:#e69128;text-decoration:none;font-weight:600}
@media(max-width:640px){article.post{padding:26px 20px}article.post img.cover{width:calc(100% + 40px);margin:-26px -20px 20px}.hero h1{font-size:26px}}