/* プライバシー・規約用：演出なし・読みやすさ優先 */
:root{
  --ink:#1F2433; --ink2:#454B5E; --bg:#F6F1E7; --card:#FFFDF8; --line:#1F2433;
  --teal:#1E9C86; --teal-bg:#DDF4EE; --sand:#E9DCC4;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:system-ui,-apple-system,"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic UI",Meiryo,sans-serif;
  font-size:16px;line-height:1.85;}
a{color:#137363;text-underline-offset:3px}
a:hover{color:var(--ink)}
:focus-visible{outline:3px solid var(--teal);outline-offset:2px;border-radius:4px}
.lg-head{display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 16px;background:var(--ink);color:#fff;border-bottom:4px solid var(--teal)}
.lg-brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:900;font-size:18px;letter-spacing:.02em}
.lg-brand img{border-radius:50%;border:2px solid #fff;background:#fff}
.lg-lang{display:flex;gap:4px;font-size:14px;font-weight:700}
.lg-lang a,.lg-lang span{padding:4px 10px;border-radius:999px;border:2px solid rgba(255,255,255,.5);color:#fff;text-decoration:none}
.lg-lang span{background:var(--teal);border-color:var(--teal)}
.lg-main{max-width:760px;margin:28px auto 48px;padding:24px 20px 32px;background:var(--card);
  border:3px solid var(--line);border-radius:18px;box-shadow:6px 6px 0 var(--line)}
@media (max-width:600px){.lg-main{margin:16px 12px 32px;padding:20px 16px 24px;box-shadow:4px 4px 0 var(--line)}}
h1{font-size:clamp(26px,5vw,34px);line-height:1.3;margin:0 0 6px;font-weight:900}
h2{font-size:21px;line-height:1.4;margin:36px 0 10px;padding:6px 0 6px 12px;border-left:6px solid var(--teal);scroll-margin-top:16px}
h3{font-size:17px;margin:22px 0 6px}
p,li{color:var(--ink)}
ul,ol{padding-left:1.4em}
li{margin:4px 0}
code{font-size:.86em;background:#EFE9DC;padding:1px 5px;border-radius:5px;word-break:break-all}
.lg-dates{color:var(--ink2);font-size:14px;margin:0 0 18px}
.lg-toc{background:var(--teal-bg);border:2px solid var(--line);border-radius:12px;padding:10px 16px;margin:18px 0}
.lg-toc p{margin:0;font-weight:800}
.lg-toc ol{margin:4px 0}
.lg-key{background:#FFF4D6;border:2px solid var(--line);border-radius:12px;padding:12px 16px;font-weight:700}
.lg-mail{font-size:18px;font-weight:800;word-break:break-all}
.lg-foot{text-align:center;padding:20px 16px 32px;font-size:14px;color:var(--ink2)}
.lg-foot nav{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 18px;margin-bottom:6px}
.lg-btn{margin-top:8px;min-height:44px;padding:0 16px;border-radius:10px;border:2px solid var(--ink);background:var(--teal-bg);color:var(--ink);font-weight:800;font-size:15px;cursor:pointer}
.lg-btn[aria-pressed="true"]{background:#FFF4D6}