:root {
    --dn-teal: #00695c;
    --dn-teal-dark: #004d40;
    --dn-coral: #ff7043;
    --dn-bg: #f2f8f7;
    --dn-text: #1a2e2c;
    --dn-muted: #5a7a75;
    --dn-card: #fff;
    --dn-shadow: 0 4px 20px rgba(0, 105, 92, 0.1);
}
body { margin: 0; font-family: 'Noto Sans KR', sans-serif; background: var(--dn-bg); color: var(--dn-text); font-size: 1.0625rem; line-height: 1.75; }
.dn-nav { background: linear-gradient(135deg, var(--dn-teal-dark) 0%, var(--dn-teal) 100%); box-shadow: 0 2px 12px rgba(0,0,0,.15); }
.dn-nav .navbar-brand img { height: 36px; width: auto; }
.dn-nav .nav-link { color: rgba(255,255,255,.92) !important; font-weight: 500; padding: .5rem 1rem !important; border-radius: 6px; }
.dn-nav .nav-link:hover, .dn-nav .nav-link.active { background: rgba(255,112,67,.3); color: #fff !important; }
.dn-hero { background: linear-gradient(160deg, var(--dn-teal-dark) 0%, var(--dn-teal) 60%, #00897b 100%); color: #fff; padding: 3.5rem 0 3rem; }
.dn-hero h1 { font-weight: 800; font-size: clamp(1.75rem, 4vw, 2.4rem); }
.dn-content { background: var(--dn-card); border-radius: 16px; padding: 2.5rem; margin: -2rem auto 2rem; box-shadow: var(--dn-shadow); max-width: 900px; }
.dn-content h2 { color: var(--dn-teal); font-weight: 700; font-size: 1.5rem; margin-top: 2rem; padding-bottom: .5rem; border-bottom: 2px solid rgba(0,105,92,.12); }
.dn-content h2:first-of-type { margin-top: 0; }
.dn-content h3 { color: var(--dn-teal-dark); font-size: 1.15rem; font-weight: 600; margin-top: 1.5rem; }
.dn-table { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: .95rem; }
.dn-table th, .dn-table td { border: 1px solid rgba(0,105,92,.12); padding: .75rem 1rem; text-align: left; }
.dn-table th { background: var(--dn-teal); color: #fff; }
.dn-callout { background: rgba(255,112,67,.08); border-left: 4px solid var(--dn-coral); padding: 1rem 1.25rem; border-radius: 0 8px 8px 0; margin: 1.25rem 0; }
.dn-callout a { color: var(--dn-teal-dark); font-weight: 600; }
.dn-steps { counter-reset: s; list-style: none; padding: 0; }
.dn-steps li { counter-increment: s; padding: .75rem 0 .75rem 3rem; position: relative; border-bottom: 1px solid rgba(0,105,92,.08); }
.dn-steps li::before { content: counter(s); position: absolute; left: 0; width: 2rem; height: 2rem; background: var(--dn-coral); color: #fff; border-radius: 50%; text-align: center; line-height: 2rem; font-weight: 700; font-size: .9rem; }
.dn-toc { background: var(--dn-bg); border-left: 4px solid var(--dn-coral); padding: 1rem 1.25rem; border-radius: 0 8px 8px 0; margin-bottom: 1.5rem; }
.dn-toc a { color: var(--dn-teal); }
.dn-faq details { border: 1px solid rgba(0,105,92,.1); border-radius: 8px; margin-bottom: .75rem; padding: .75rem 1rem; }
.dn-faq summary { font-weight: 600; color: var(--dn-teal); cursor: pointer; }
.dn-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.25rem; margin: 1.5rem 0; }
.dn-card { background: var(--dn-bg); border: 1px solid rgba(0,105,92,.1); border-radius: 12px; padding: 1.25rem; }
.dn-card a { color: var(--dn-teal); font-weight: 600; text-decoration: none; }
.dn-meta { font-size: .85rem; color: var(--dn-muted); margin-bottom: 1.25rem; padding-bottom: 1rem; border-bottom: 1px solid rgba(0,105,92,.1); }
.dn-footer { background: var(--dn-teal-dark); color: rgba(255,255,255,.85); padding: 2.5rem 0; margin-top: 3rem; font-size: .9rem; }
.dn-footer a { color: #ffab91; text-decoration: none; }
.dn-footer-links { list-style: none; padding: 0; margin: 0 0 1.5rem; display: flex; flex-wrap: wrap; justify-content: center; gap: .5rem 1.5rem; }
@media (max-width:768px) { .dn-content { padding: 1.5rem; margin-top: -1.5rem; } }