body{margin:0;font-family:Arial,'Noto Sans Thai',Tahoma,sans-serif;background:#f6f8fb;color:#14213d;line-height:1.8}
a{text-decoration:none;color:inherit}
.seo-topbar{background:#061b35;color:#fff;padding:9px 22px;font-size:14px;font-weight:800;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.seo-nav{position:sticky;top:0;z-index:20;background:#fff;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:15px 24px;box-shadow:0 10px 28px rgba(16,24,40,.10)}
.seo-brand{font-size:21px;font-weight:900;color:#0b3d91}
.seo-links{display:flex;gap:15px;align-items:center;flex-wrap:wrap}
.seo-links a{font-size:14px;font-weight:900;color:#1f2937}
.seo-links .quote{background:#f7b731;color:#111827;padding:9px 15px;border-radius:10px}
.seo-hero{background:linear-gradient(135deg,rgba(6,27,53,.96),rgba(11,61,145,.88));color:#fff;padding:76px 20px}
.seo-hero-inner{max-width:1120px;margin:0 auto}
.seo-kicker{display:inline-flex;padding:7px 13px;border:1px solid rgba(247,183,49,.7);border-radius:999px;color:#ffd56b;font-weight:900;margin:0 0 14px}
.seo-hero h1{font-size:46px;line-height:1.2;margin:0 0 14px;max-width:920px}
.seo-hero p{font-size:19px;color:#eaf2ff;max-width:860px;margin:0 0 24px}
.seo-actions{display:flex;gap:12px;flex-wrap:wrap}
.seo-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 20px;border-radius:10px;font-weight:900}
.seo-btn.gold{background:#f7b731;color:#111827}
.seo-btn.green{background:#06c755;color:#fff}
.seo-section{max-width:1120px;margin:0 auto;padding:56px 20px}
.seo-head{text-align:center;margin-bottom:30px}
.seo-head h2{font-size:36px;line-height:1.25;color:#0b3d91;margin:0 0 8px}
.seo-head p{color:#667085;font-size:17px;margin:0 auto;max-width:780px}
.seo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.seo-card{background:#fff;border:1px solid #e5e7eb;border-radius:10px;padding:22px;box-shadow:0 14px 34px rgba(16,24,40,.08)}
.seo-card h3{margin:0 0 8px;color:#061b35;font-size:22px}
.seo-card p{margin:0;color:#475467}
.seo-card ul{margin:0;padding-left:20px;color:#475467}
.seo-panel{background:#fff;border:1px solid #e5e7eb;border-radius:10px;padding:28px;box-shadow:0 16px 38px rgba(16,24,40,.08)}
.seo-panel h2{margin:0 0 10px;color:#0b3d91;font-size:31px}
.seo-panel p{margin:0 0 14px;color:#475467}
.seo-related{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}
.seo-related a{background:#e8f1ff;color:#0b3d91;border-radius:999px;padding:8px 13px;font-weight:900;font-size:14px}
.seo-footer{background:#061b35;color:#fff;text-align:center;padding:30px 20px;margin-top:30px}
@media(max-width:860px){.seo-nav{align-items:flex-start;flex-direction:column}.seo-hero h1{font-size:34px}.seo-grid{grid-template-columns:1fr}.seo-btn{width:100%;max-width:300px}}