:root{
  --blue:#003b7a; --deep:#002652; --accent:#0b68b7; --light:#f3f7fc; --line:#d9e4f2;
  --text:#1f2937; --muted:#667085; --card:#ffffff;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:Arial,Helvetica,sans-serif;color:var(--text);background:var(--light);-webkit-text-size-adjust:100%}
a{color:inherit}
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.top-strip{height:5px;background:linear-gradient(90deg,var(--deep),var(--accent))}
.nav{max-width:1180px;margin:0 auto;padding:14px 16px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;min-width:0}
.brand-mark{width:48px;height:48px;border-radius:50%;border:3px solid var(--blue);display:flex;align-items:center;justify-content:center;color:var(--blue);font-weight:900;letter-spacing:-1px}
.brand-word{line-height:1}
.brand-word strong{display:block;font-size:27px;letter-spacing:5px;color:#202833}
.brand-word span{display:block;margin-top:5px;color:var(--muted);font-size:12px;letter-spacing:.6px}
.navlinks{display:flex;gap:22px;align-items:center;color:#344054;font-weight:700;font-size:14px}
.navlinks a{text-decoration:none}
.official-btn{border:1px solid var(--blue);color:var(--blue);padding:9px 14px;border-radius:999px;text-decoration:none;white-space:nowrap}
.hero{background:linear-gradient(105deg,var(--deep),var(--blue) 56%,#0a75bd);color:#fff}
.hero-inner{max-width:1180px;margin:0 auto;padding:52px 16px 58px}
.eyebrow{font-size:13px;text-transform:uppercase;letter-spacing:2.4px;opacity:.88;font-weight:800}
h1{font-size:clamp(30px,5vw,56px);line-height:1.06;margin:12px 0 14px}
.hero p{font-size:18px;line-height:1.65;max-width:760px;margin:0;color:#e9f2ff}
.main{max-width:1180px;margin:-28px auto 0;padding:0 16px 48px}
.panel{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:0 12px 34px rgba(31,48,73,.10);padding:24px}
.section-title{display:flex;justify-content:space-between;align-items:end;gap:14px;margin-bottom:18px}
.section-title h2{margin:0;color:var(--blue);font-size:28px}
.section-title p{margin:6px 0 0;color:var(--muted);line-height:1.55}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.card{display:block;text-decoration:none;border:1px solid var(--line);border-radius:18px;background:#fff;padding:22px;min-height:150px;transition:.15s ease}
.card:hover{transform:translateY(-2px);border-color:#9cc2e9;box-shadow:0 10px 25px rgba(0,56,119,.12)}
.icon{width:48px;height:48px;border-radius:14px;background:#eaf3fc;color:var(--blue);display:flex;align-items:center;justify-content:center;font-weight:900;margin-bottom:16px}
.card h3{margin:0 0 8px;font-size:22px;color:#1f2937}
.card p{margin:0;color:var(--muted);line-height:1.55}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:16px}
.breadcrumb a{color:var(--blue);text-decoration:none;font-weight:700}
.list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.list-card{display:flex;justify-content:space-between;align-items:center;gap:14px;border:1px solid var(--line);border-radius:16px;background:#fff;padding:18px;text-decoration:none}
.list-card:hover{border-color:#9cc2e9;box-shadow:0 8px 22px rgba(0,56,119,.10)}
.num{width:44px;height:44px;border-radius:12px;background:#eaf3fc;color:var(--blue);display:flex;align-items:center;justify-content:center;font-weight:900;flex:none}
.list-left{display:flex;align-items:center;gap:13px;min-width:0}
.list-title{font-weight:900;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.list-sub{font-size:13px;color:var(--muted);margin-top:4px}
.arrow{font-size:24px;color:var(--blue)}
.toolbar{display:flex;gap:10px;justify-content:space-between;align-items:center;flex-wrap:wrap;margin-bottom:16px}
.btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;padding:11px 15px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--blue);font-weight:900}
.btn.primary{background:var(--blue);color:#fff;border-color:var(--blue)}
.viewer{background:#fff;border:1px solid var(--line);border-radius:20px;padding:16px;box-shadow:0 12px 34px rgba(31,48,73,.10)}
.viewer h2{color:var(--blue);margin:4px 0 14px}
.cert-img{display:block;width:100%;max-width:1000px;margin:0 auto;height:auto;border:1px solid var(--line);border-radius:10px;background:#fff}
.note{color:var(--muted);line-height:1.6;font-size:14px}
.footer{max-width:1180px;margin:0 auto;padding:22px 16px;color:var(--muted);text-align:center;font-size:13px;line-height:1.7}
@media(max-width:800px){
  .nav{align-items:flex-start}.navlinks{display:none}.brand-word strong{font-size:23px}
  .hero-inner{padding:38px 16px 48px}.grid,.list{grid-template-columns:1fr}
  .main{margin-top:-22px}.panel{padding:18px}
  .official-btn{font-size:13px;padding:9px 10px}
}