*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:#F6FBF9;color:#2E3B36;
  font-family:"Hiragino Kaku Gothic ProN","Yu Gothic","Meiryo",system-ui,sans-serif;
  line-height:1.9;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:#E8896A;text-underline-offset:3px}
a:hover{color:#D2724F}
.wrap{max-width:720px;margin:0 auto;padding:0 20px}

/* ヘッダー */
.site-head{background:#C6E4D6}
.site-head .wrap{display:flex;align-items:center;gap:12px;padding-top:14px;padding-bottom:14px}
.site-head img.mark{width:40px;height:40px;border-radius:50%;flex:none}
.site-head .name{font-weight:800;font-size:17px;letter-spacing:.02em;color:#2E3B36;text-decoration:none}
.site-head .tag{font-size:12px;color:#5C6E67;margin-top:2px}
.hero{background:#C6E4D6}
.hero img{display:block;width:100%;max-width:1080px;height:auto;margin:0 auto}

/* ナビ */
nav.main{background:#C6E4D6;border-top:1px solid rgba(0,0,0,.05)}
nav.main ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;
  max-width:720px;margin:0 auto;padding:0 12px 10px}
nav.main a{display:block;padding:7px 12px;font-size:13.5px;text-decoration:none;
  color:#2E3B36;font-weight:700;opacity:.82}
nav.main a:hover{opacity:1}
nav.main a[aria-current="page"]{opacity:1;border-bottom:2px solid #E8896A}

/* 本文 */
main{padding:34px 0 10px}
h1{font-size:26px;line-height:1.5;margin:0 0 18px;letter-spacing:.01em}
h2{font-size:20px;margin:44px 0 14px;padding-left:13px;border-left:5px solid #E8896A;line-height:1.5}
h3{font-size:17px;margin:32px 0 10px}
p{margin:0 0 18px}
ul,ol{margin:0 0 20px;padding-left:1.3em}
li{margin-bottom:7px}
hr{border:0;border-top:1px solid #DCE9E3;margin:40px 0}
blockquote{margin:0 0 20px;padding:14px 18px;background:#FFFFFF;
  border-left:4px solid #DCE9E3;border-radius:0 8px 8px 0;color:#5C6E67;font-size:15px}
.lead{font-size:17px;color:#5C6E67}
table{border-collapse:collapse;width:100%;margin:0 0 22px;font-size:14.5px}
th,td{border:1px solid #DCE9E3;padding:9px 11px;text-align:left;vertical-align:top}
th{background:#FFFFFF;font-weight:700}
.card{background:#FFFFFF;border:1px solid #DCE9E3;border-radius:12px;padding:18px 20px;margin:0 0 20px}
.card h3{margin-top:0}
.pr{background:#FFFFFF;border:1px dashed #DCE9E3;border-radius:10px;
  padding:11px 15px;font-size:13.5px;color:#5C6E67;margin:0 0 22px}
.btn{display:inline-block;background:#E8896A;color:#fff !important;font-weight:700;
  padding:12px 26px;border-radius:99px;text-decoration:none;font-size:15px;margin:4px 0 8px}
.btn:hover{background:#D2724F;color:#fff !important}
.crumb{font-size:12.5px;color:#5C6E67;margin:0 0 20px}
.crumb a{color:#5C6E67}

/* カード一覧 */
.grid{display:grid;gap:14px;grid-template-columns:1fr;margin:0 0 26px}
@media(min-width:620px){.grid{grid-template-columns:1fr 1fr}}
.grid a.item{display:block;background:#FFFFFF;border:1px solid #DCE9E3;border-radius:12px;
  padding:16px 18px;text-decoration:none;color:#2E3B36}
.grid a.item b{display:block;font-size:16px;margin-bottom:5px}
.grid a.item span{font-size:13.5px;color:#5C6E67;line-height:1.7}
.grid a.item:hover{border-color:#E8896A}

/* フッター */
footer{margin-top:56px;background:#C6E4D6;padding:26px 0 34px;font-size:13px;color:#5C6E67}
footer a{color:#5C6E67}
footer .row{display:flex;flex-wrap:wrap;gap:8px 18px;margin-bottom:14px}
.cross{font-size:12px;opacity:.72;margin-top:12px}

@media(max-width:520px){
  body{font-size:15.5px}
  h1{font-size:22px} h2{font-size:18px}

}