:root{--ink:#1d2433;--sub:#5a6478;--line:#e6e9f0;--bg:#fff;--soft:#f6f8fc;--accent:#0b5fa5}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,"Apple SD Gothic Neo","Noto Sans KR","Malgun Gothic",sans-serif;line-height:1.75;font-size:16px}
main{max-width:760px;margin:0 auto;padding:24px 18px 64px}
nav.crumb{font-size:13px;color:var(--sub);margin:0 0 14px;overflow-wrap:anywhere}
nav.crumb a{color:var(--accent);text-decoration:none}
h1{font-size:26px;line-height:1.35;margin:0 0 6px}
.sub{color:var(--sub);font-size:14px;margin:0 0 18px;overflow-wrap:anywhere}
.summary{background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin:0 0 20px}
.summary p{margin:0}
.tabs{display:flex;gap:8px;margin:0 0 16px;flex-wrap:wrap}
.tabs button{font:inherit;font-size:15px;padding:9px 18px;border-radius:999px;border:1px solid var(--line);background:#fff;cursor:pointer;color:var(--ink)}
.tabs button[aria-selected="true"]{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
.tabs button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.linecard{border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin:10px 0;display:block;color:inherit;text-decoration:none}
.linecard:hover{border-color:var(--accent)}
.linecard h3{margin:0 0 4px;font-size:17px}
.linecard p{margin:0;font-size:14px;color:var(--sub)}
.dot{display:inline-block;width:12px;height:12px;border-radius:50%;margin-right:6px;vertical-align:-1px}
.stoplist{list-style:none;padding:0;margin:12px 0}
.stoplist li{border-bottom:1px solid var(--line);padding:9px 2px;font-size:15px;display:flex;gap:10px;align-items:baseline}
.stoplist .code{font-size:12.5px;color:#fff;background:#5a6478;border-radius:6px;padding:2px 8px;white-space:nowrap}
.stoplist a{color:var(--accent);text-decoration:none}
.stoplist a:hover{text-decoration:underline}
.stoplist .th{color:var(--sub);font-size:13.5px;overflow-wrap:anywhere}
table.info{width:100%;border-collapse:collapse;font-size:15px;margin:0 0 8px}
table.info th,table.info td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
table.info th{width:32%;background:var(--soft);white-space:nowrap}
table.info td{overflow-wrap:anywhere;word-break:keep-all}
h2{font-size:20px;margin:30px 0 10px}
ul{padding-left:20px;margin:8px 0}
li{margin:6px 0}
.note{font-size:13.5px;color:var(--sub)}
.sources{font-size:14px}
.sources li{overflow-wrap:anywhere}
.routebox{background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin:16px 0}
.routebox label{display:block;font-size:14px;font-weight:600;margin:8px 0 4px}
.routebox select{font:inherit;font-size:15px;padding:8px 10px;border:1px solid var(--line);border-radius:8px;width:100%;max-width:100%;background:#fff}
.routebox .btn{display:inline-block;margin-top:12px;padding:10px 20px;background:var(--accent);color:#fff;border:0;border-radius:10px;font:inherit;font-size:15px;cursor:pointer}
.routebox .btn:focus-visible{outline:2px solid #083d6e;outline-offset:2px}
svg.schematic{width:100%;height:auto;display:block;border:1px solid var(--line);border-radius:12px;background:var(--soft)}
footer.meta{margin-top:40px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--sub)}
footer.meta span{margin-right:14px}
@media (max-width:560px){
  h1{font-size:22px}
  table.info,table.info tbody,table.info tr,table.info th,table.info td{display:block;width:100%}
  table.info th{white-space:normal;border-bottom:0}
  table.info td{border-top:0}
  main{padding:18px 14px 48px}
  .stoplist li{flex-wrap:wrap}
}
/* Multi-column comparison tables must not inherit 32% width for every heading. */
table.info{table-layout:auto}table.info th{width:auto;white-space:normal}table.info td{word-break:normal;overflow-wrap:normal}main{max-width:980px}main>nav[aria-label="목차"]{padding:18px 22px;background:#f6f8fc;border:1px solid #e6e9f0;border-radius:12px}main>nav[aria-label="목차"] ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px 18px;list-style:none;padding:0}main>ul{line-height:1.9}main>h2{margin-top:36px;padding-top:16px;border-top:1px solid #e6e9f0}@media(max-width:560px){main>nav[aria-label="목차"] ul{grid-template-columns:1fr}table.info td{overflow-wrap:anywhere}}

/* Comparisons retain column headings on desktop and repeat labels per mobile card. */
.comparison-table{max-width:100%;overflow-x:auto;margin:16px 0 24px}
.comparison-table table.info{min-width:680px;margin:0}
@media(max-width:560px){
  .comparison-table{overflow:visible}
  .comparison-table table.info{min-width:0;border:0;background:transparent}
  .comparison-table table.info .comparison-head{display:none}
  .comparison-table table.info tr:not(.comparison-head){display:block;margin:0 0 16px;padding:12px 16px;border:1px solid var(--line);border-radius:12px;background:#fff;width:100%}
  .comparison-table table.info td{display:grid;grid-template-columns:64px minmax(0,1fr);gap:12px;border:0;padding:7px 0;width:100%;line-height:1.6;overflow-wrap:break-word;word-break:normal}
  .comparison-table table.info td::before{content:attr(data-label);color:#667581;font-weight:600;font-size:13px}
  .comparison-table table.info td:first-child{font-weight:750;font-size:17px;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:5px}
}
main h2[id]{scroll-margin-top:120px}

/* Boat guide: separate route exploration from the reading guide. */
.boat-guide{max-width:1100px;padding-top:36px}.boat-guide h1{font-size:32px;letter-spacing:-.04em}.boat-guide>.sub{font-size:16px;max-width:780px;margin:16px 0 24px}.boat-guide a{color:#267e89;text-underline-offset:3px}.boat-reading{max-width:800px;margin:48px auto 0;border-top:1px solid #dce5e8;padding-top:32px}.guide-label{font-size:12px;font-weight:700;letter-spacing:.08em;color:#267e89}.boat-reading h2{font-size:23px;line-height:1.4;margin:36px 0 14px;letter-spacing:-.03em}.boat-reading p{margin:12px 0;line-height:1.9;word-break:keep-all;overflow-wrap:anywhere}.boat-reading .note{font-size:14px;background:#f6f8fc;border-radius:10px;padding:16px 18px}.boat-caution{background:#fff8e8;border:1px solid #efdfb8;border-radius:14px;padding:4px 24px 16px;margin:32px 0}.boat-caution h2{font-size:20px;margin-top:24px}.boat-faq{border-bottom:1px solid #e6e9f0;padding:17px 0}.boat-faq summary,.boat-sources summary{cursor:pointer;font-weight:700}.boat-faq p{color:#5a6478}.boat-sources{background:#f6f8fc;padding:20px 24px;border-radius:12px;margin-top:32px}.boat-sources ul{list-style:none;padding:0}.boat-sources li{padding:14px 0;border-bottom:1px solid #e6e9f0}.boat-sources li:last-child{border:0}.boat-sources p{font-size:13px;color:#5a6478;margin:7px 0 0}@media(max-width:600px){.boat-guide{padding:24px 16px 48px}.boat-guide h1{font-size:26px}.boat-reading h2{font-size:21px}.boat-caution{padding:4px 18px 14px}}