:root{--ink:#15322e;--green:#0e6b5b;--mint:#dff4ec;--coral:#ec6f5e;--sand:#fff8ed;--white:#fff;--muted:#62736f;font-family:Inter,Pretendard,"Noto Sans KR",system-ui,sans-serif;color:var(--ink);background:#f7fbf9}*{box-sizing:border-box}body{margin:0;line-height:1.72}a{color:var(--green)}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:#fff;padding:8px;z-index:20}header{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px max(20px,calc((100% - 1120px)/2));background:#ffffffee;backdrop-filter:blur(12px);border-bottom:1px solid #d9e9e3}.brand{font-weight:850;text-decoration:none;color:var(--ink);white-space:nowrap}.brand span{display:inline-grid;place-items:center;background:var(--coral);color:#fff;width:34px;height:34px;border-radius:10px;margin-right:7px}.topnav{display:flex;gap:18px;overflow:auto}.topnav a{text-decoration:none;color:var(--ink);font-size:.93rem;white-space:nowrap}main{max-width:1120px;margin:auto;padding:32px 22px 80px}.crumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:.86rem;margin-bottom:20px}.crumb a{color:var(--muted)}.hero{padding:64px clamp(24px,6vw,72px);border-radius:32px;background:radial-gradient(circle at 85% 20%,#83d5bb 0 8%,transparent 9%),linear-gradient(135deg,#0b584c,#16443e);color:#fff;box-shadow:0 22px 60px #103c3420}.hero h1{font-size:clamp(2.15rem,6vw,4.8rem);line-height:1.06;margin:.15em 0 .28em;max-width:850px;letter-spacing:-.04em}.hero>p:last-child{max-width:760px;font-size:1.08rem;color:#e2f5ee}.eyebrow{letter-spacing:.16em;font-weight:800;font-size:.78rem;color:#9ce1ca}section{margin-top:34px;background:#fff;border:1px solid #dfece7;border-radius:24px;padding:clamp(22px,4vw,38px);box-shadow:0 12px 35px #15443c0a}h2{font-size:clamp(1.35rem,3vw,2rem);line-height:1.25;margin:0 0 18px;letter-spacing:-.025em}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px}.card{display:flex;flex-direction:column;gap:7px;padding:20px;border-radius:18px;background:var(--sand);text-decoration:none;color:var(--ink);border:1px solid #f2dfc7;transition:.2s}.card:hover{transform:translateY(-3px);border-color:var(--coral)}.card strong{font-size:1.08rem}.card span{color:var(--muted);font-size:.9rem}.route{display:grid;grid-template-columns:minmax(90px,130px) 1fr;gap:12px 18px}.route b{color:var(--green)}.check li,li{margin:.5em 0}.notice{padding:18px;border-left:5px solid var(--coral);background:#fff3ef;border-radius:10px}.button,button{display:inline-block;border:0;border-radius:12px;padding:12px 18px;background:var(--green);color:#fff;text-decoration:none;font-weight:750;cursor:pointer}.source{margin-top:38px;padding:22px;border-radius:18px;background:var(--mint);color:#34514b}.source p{margin:.35em 0 0}.tool{display:grid;gap:14px;max-width:700px}.tool label{display:grid;gap:5px;font-weight:700}.tool input[type=number]{padding:12px;border:1px solid #bfd5cd;border-radius:10px;font:inherit}.tool output{font-size:1.35rem;font-weight:850;color:var(--green)}.checklist label{display:block;padding:12px;border-bottom:1px solid #e2ece8}.checklist input{width:19px;height:19px;vertical-align:-4px}footer{padding:36px 22px;text-align:center;background:#102f2a;color:#cfe3dc}footer a{color:#fff}@media(max-width:780px){header{align-items:flex-start;flex-direction:column}.topnav{width:100%;padding-bottom:4px}.hero{padding:42px 24px;border-radius:24px}.route{grid-template-columns:1fr}.route span{margin-bottom:9px}}