/* Explicit, click-operated navigation; no hover-only destinations. */
header{position:relative;z-index:30}header #gnb{display:flex;gap:24px;align-items:center}header #gnb .nav-group{position:relative}header #gnb summary{display:flex;align-items:center;gap:8px;list-style:none;cursor:pointer;font-size:14px;padding:24px 0;color:var(--ink)}header #gnb summary::-webkit-details-marker{display:none}header #gnb summary span{font-size:16px;color:var(--teal);transition:transform .2s}header #gnb .nav-group[open] summary span{transform:rotate(180deg)}header #gnb .nav-group[data-active] summary{color:var(--teal);text-decoration:underline;text-underline-offset:9px}header #gnb summary:focus-visible{outline:3px solid #83ac5d;outline-offset:4px}header #gnb .nav-dropdown{position:absolute;top:100%;left:-20px;width:280px;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);box-shadow:0 12px 28px #142c2a14;padding:12px;gap:2px}header #gnb .nav-group:last-child .nav-dropdown{left:auto;right:0}header #gnb .nav-dropdown a{display:block;font-size:14px;padding:10px 12px;font-weight:500;border:0}header #gnb .nav-dropdown a:hover,header #gnb .nav-dropdown a[aria-current]{background:#eef4f1;color:var(--teal);opacity:1}
.section-navigation{background:#f4f7f5;border-bottom:1px solid var(--line);padding:0 max(24px,calc((100% - 1200px)/2));font-size:13px}.section-navigation>div{display:flex;align-items:stretch;gap:28px;overflow-x:auto}.section-navigation span{display:flex;align-items:center;font-weight:700;padding-right:28px;border-right:1px solid var(--line);white-space:nowrap}.section-navigation a{padding:18px 0;white-space:nowrap;position:relative;color:var(--muted)}.section-navigation a[aria-current]{color:var(--teal);font-weight:700}.section-navigation a[aria-current]:after{content:'';position:absolute;bottom:0;left:0;right:0;height:3px;background:var(--teal)}
.footer-sitemap{padding:48px max(24px,calc((100% - 1200px)/2));display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:24px;background:#f4f7f5;border-top:1px solid var(--line)}.footer-sitemap>div{display:flex;flex-direction:column;gap:10px}.footer-sitemap strong{font-size:14px;margin-bottom:8px}.footer-sitemap a{font-size:12px;color:var(--muted)}
@media(max-width:1000px){header #gnb{gap:16px}header #gnb summary{font-size:13px;gap:5px}.footer-sitemap{grid-template-columns:repeat(3,minmax(0,1fr));row-gap:32px}}
@media(max-width:900px){header{height:72px;padding:0 24px;gap:16px}header .menu{display:block;margin-left:auto;border:0;background:white;color:var(--teal);font-size:13px}header #gnb{display:none}header #gnb.open{display:flex;position:absolute;top:71px;left:0;right:0;max-height:calc(100dvh - 72px);overflow-y:auto;flex-direction:column;align-items:stretch;padding:16px 24px;background:white;border-bottom:1px solid var(--line);box-shadow:0 12px 28px #142c2a14;gap:0}header #gnb .nav-group{border-bottom:1px solid var(--line)}header #gnb summary{padding:16px 0;justify-content:space-between;font-size:16px}header #gnb .nav-dropdown{position:static;width:auto;border:0;box-shadow:none;background:#f4f7f5;margin-bottom:16px;padding:8px;gap:0}header #gnb .nav-dropdown a{font-size:14px;padding:12px}header .contact{font-size:12px;padding:8px 12px}.section-navigation{padding:0 24px}.section-navigation>div{gap:24px}.section-navigation span{display:none}.footer-sitemap{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(prefers-reduced-motion:reduce){header #gnb summary span{transition:none}}
@media(max-width:900px){.section-navigation>div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 16px;overflow:visible}.section-navigation a{white-space:normal;padding:12px 0;font-size:12px;line-height:1.5}.section-navigation a[aria-current]:after{bottom:4px;height:2px}.section-navigation>div>a:only-of-type{grid-column:1/-1}}