:root{--bg:#fbfaf7;--ink:#1d2321;--muted:#5d6763;--line:#e4e1d8;--card:#fff;--accent:#e8622c;--accent-ink:#fff;--sea:#1f6f78;--soft:#eef5f4}
@media (prefers-color-scheme:dark){:root{--bg:#121615;--ink:#eef1ef;--muted:#a3ada9;--line:#2a3230;--card:#1a1f1e;--accent:#ff7a45;--sea:#5fb8c1;--soft:#1b2827}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--sea)}
.wrap{max-width:760px;margin:0 auto;padding:0 16px}
nav.top{background:#123f45;font-size:14px}
nav.top .wrap{display:flex;gap:16px;overflow-x:auto;padding-top:10px;padding-bottom:10px;white-space:nowrap}
nav.top a{color:#d9eeee;text-decoration:none}
nav.top a.brand{color:#fff;font-weight:750;letter-spacing:.01em;margin-right:6px}
nav.top a.on{color:#fff;font-weight:650;text-decoration:underline;text-underline-offset:4px}
header{background:linear-gradient(160deg,#1f6f78,#164e55);color:#fff;padding:48px 0 40px}
header .kicker{font-size:13px;letter-spacing:.12em;text-transform:uppercase;opacity:.8}
header h1{font-size:clamp(28px,6vw,42px);line-height:1.15;margin:10px 0 14px}
header p{opacity:.92;margin:0 0 22px;max-width:56ch}
.btn{display:inline-block;background:var(--accent);color:var(--accent-ink);text-decoration:none;font-weight:650;padding:14px 22px;border-radius:10px}
.btn:hover{filter:brightness(1.07)}
.meta{font-size:13px;opacity:.75;margin-top:16px}
main{padding:28px 0 60px}
h2{font-size:24px;margin:40px 0 10px;line-height:1.25}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px 22px;margin:18px 0}
.quick{background:var(--soft);border:none}
.quick li{margin:4px 0}
.video{position:relative;aspect-ratio:16/9;border-radius:14px;overflow:hidden;background:#000;margin:22px 0 6px}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
table{width:100%;border-collapse:collapse;font-size:15px}
th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--muted);font-weight:600;font-size:13px;text-transform:uppercase;letter-spacing:.05em}
.tablewrap{overflow-x:auto}
.cta{text-align:center;background:var(--card);border:2px solid var(--accent);border-radius:14px;padding:26px 18px;margin:32px 0}
.cta p{margin:0 0 14px;color:var(--muted)}
details{border-bottom:1px solid var(--line);padding:12px 0}
summary{cursor:pointer;font-weight:600}
.note{font-size:14px;color:var(--muted)}
.related{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin-top:12px}
.related a{display:block;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 16px;text-decoration:none;color:var(--ink);font-weight:600}
.related a span{display:block;font-weight:400;font-size:14px;color:var(--muted)}
footer{border-top:1px solid var(--line);padding:24px 0 40px;font-size:13px;color:var(--muted)}
.card:not(.quick){position:relative;padding-left:110px;min-height:76px}
.card:not(.quick)::before{content:"";position:absolute;left:22px;top:20px;width:72px;height:72px;border-radius:50%;background:url(/jeju-coast.jpg) center/cover;border:2px solid var(--line)}
.meta::before{content:"";display:inline-block;width:28px;height:28px;border-radius:50%;background:url(/jeju-coast.jpg) center/cover;vertical-align:middle;margin-right:8px;border:1px solid rgba(255,255,255,.4)}