body{margin:0;background:#f4f7fb;color:#162033;font-family:Arial,'Noto Sans KR',sans-serif}
.hero{display:grid;grid-template-columns:1.5fr 1fr;gap:32px;align-items:center;padding:56px max(24px,calc((100vw - 1100px)/2));background:linear-gradient(135deg,#111827,#26354d);color:#fff}
.hero img{width:100%;max-height:260px}.eyebrow{display:inline-block;margin-bottom:12px;font-size:13px;letter-spacing:.12em;text-transform:uppercase;opacity:.75}
.hero h1{margin:0;font-size:clamp(36px,6vw,68px);line-height:1}.hero p{max-width:650px;font-size:18px;line-height:1.7;opacity:.86}
main{max-width:1100px;margin:0 auto;padding:32px 20px 70px}section{margin-top:24px;padding:26px;background:#fff;border:1px solid #dbe3ef;border-radius:16px;box-shadow:0 8px 24px rgba(15,23,42,.04)}
.section-title{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:22px}.section-title h2{margin:0 0 6px}.section-title p{margin:0;color:#5f6c7b;line-height:1.6}
.badge{padding:8px 12px;border-radius:999px;background:#e7eef8;font-weight:700}.response-grid,.resource-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.response-grid article{padding:16px;border:1px solid #dfe6ef;border-radius:12px;background:#f8fafc}.response-grid span{display:block;margin-bottom:8px;color:#64748b;font-size:13px}
.policy-buttons{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.policy-buttons a{padding:15px;border:1px solid #cfd8e5;border-radius:12px;color:inherit;text-decoration:none}
.policy-buttons a:hover,.policy-buttons a.active{border-color:#334155;background:#eef2f7}.policy-buttons small{display:block;margin-top:6px;color:#667085}
.resource-card{overflow:hidden;border:1px solid #dfe6ef;border-radius:14px}.resource-card>h3,.resource-card>p{margin-left:16px;margin-right:16px}.resource-card>p:last-child{padding-bottom:10px;color:#64748b;line-height:1.5}
.preview,.css-demo,.js-demo,.api-demo{min-height:180px;padding:18px;background:#eef3f9;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px}
.preview img{width:100%;height:180px;object-fit:cover;border-radius:10px}.css-demo{font-size:20px;font-weight:700;text-align:center}
button{padding:10px 14px;border:0;border-radius:8px;background:#1f2937;color:#fff;cursor:pointer}.steps{margin:0;padding-left:22px;line-height:1.9}code{font-family:Consolas,monospace}
@media(max-width:850px){.hero,.response-grid,.resource-grid{grid-template-columns:1fr}.policy-buttons{grid-template-columns:1fr}}