:root{
  --bg:#ffffff; --panel:#f4f4f4; --line:#e1e1e1; --line2:#c9c9c9; --ink:#2c2c2c; --strong:#111111; --sub:#6e6e6e;
  --focus:#1473e6; --shadow:rgba(0,0,0,.16);
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root{--bg:#1b1b1b; --panel:#262626; --line:#353535; --line2:#4a4a4a; --ink:#e6e6e6; --strong:#ffffff; --sub:#a3a3a3; --focus:#5aa9ff; --shadow:rgba(0,0,0,.5); color-scheme:dark}
}
*{box-sizing:border-box}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"Source Sans 3","Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic UI","Meiryo",sans-serif;
  font-size:15px;line-height:1.75;padding-block:0 64px;
}
.wrap{max-width:900px;margin:0 auto;padding-inline:24px;padding-top:18px;display:grid;gap:24px}
@media (max-width:600px){.wrap{padding-inline:16px}}
.num,code{font-family:"Source Sans 3","Helvetica Neue",Arial,sans-serif;font-variant-numeric:tabular-nums}
[id]{scroll-margin-top:72px}

/* 上部バー */
.topbar{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:var(--bg);border-bottom:1px solid var(--line)}
.tb-in{max-width:1240px;margin:0 auto;padding-inline:24px;height:56px;display:flex;align-items:center;gap:8px}
@media (max-width:600px){.tb-in{padding-inline:16px}}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--strong);font-weight:800;font-size:17px;letter-spacing:.04em;padding-right:18px;margin-right:4px;border-right:1px solid var(--line);height:100%;white-space:nowrap}
.logo img{width:26px;height:26px;border-radius:6px}
.tb-nav{display:flex;height:100%;overflow-x:auto;scrollbar-width:none}
.tb-nav::-webkit-scrollbar{display:none}
.tb-nav a{display:flex;align-items:center;padding-inline:14px;font-size:14px;color:var(--ink);text-decoration:none;white-space:nowrap;border-bottom:2px solid transparent}
.tb-nav a:hover{border-bottom-color:var(--strong);color:var(--strong)}
@media (max-width:600px){.logo span{display:none}.logo{padding-right:10px}.tb-nav a{padding-inline:10px;font-size:13px}}
a{color:inherit;text-underline-offset:3px}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--focus);outline-offset:2px}
.stack{display:grid;gap:40px}
.stack-s{display:grid;gap:12px}
.stack-s>*{margin:0}
.crumb{font-size:12px;color:var(--sub)}
h1,h2,h3{color:var(--strong);text-wrap:balance;margin:0}
h2{font-size:22px;font-weight:800;letter-spacing:.01em}
h3{font-size:16px;font-weight:800}
.lead{font-size:15px}
.note{font-size:13px;color:var(--sub)}

.hero{border-radius:12px;padding:32px 28px;min-height:260px;display:grid;align-content:end;gap:2px;border:1px solid var(--line)}
.hero p{margin:0}
.hero .yomi{font-size:14px;letter-spacing:.2em;opacity:.9}
.hero h1{color:inherit;font-size:clamp(26px,5vw,38px);font-weight:800;letter-spacing:.06em}
.hero .hx{font-family:"Source Sans 3",sans-serif;font-weight:800;font-size:clamp(34px,7vw,56px);letter-spacing:.03em;line-height:1.15}
.hero .yurai{margin-top:12px;padding-top:12px;border-top:1px solid currentColor;border-top-color:color-mix(in srgb,currentColor 35%,transparent);font-size:14px;line-height:1.75;max-width:40em}
h1.plain{font-size:clamp(26px,4vw,36px);font-weight:800;letter-spacing:.01em}

.cps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
@media (max-width:600px){.cps{grid-template-columns:repeat(2,minmax(0,1fr))}}
.cp{background:var(--panel);border:1px solid transparent;border-radius:6px;padding:10px 12px;cursor:pointer;color:var(--ink);font:inherit;text-align:left;display:grid;min-width:0}
.cp:hover{border-color:var(--line)}
.cp b{font-size:11px;letter-spacing:.1em;color:var(--sub)}
.cp code{font-size:15px;color:var(--strong);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.demo{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.demo div{border-radius:8px;padding:18px 16px;font-size:18px;font-weight:700;display:flex;justify-content:space-between;align-items:baseline;gap:8px;border:1px solid var(--line)}
.demo span{font-size:13px;font-weight:400;opacity:.85}
pre{background:var(--panel);border-radius:6px;padding:12px 14px;margin:0;overflow-x:auto;font-size:13px;line-height:1.7}
pre code{font-family:Menlo,Consolas,monospace}

.steps{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));border-radius:8px;overflow:hidden;border:1px solid var(--line)}
.steps button{height:72px;border:0;cursor:pointer;padding:0 0 6px;display:flex;align-items:flex-end;justify-content:center;font:inherit}
.steps button span{font-family:"Source Sans 3",sans-serif;font-size:11px;writing-mode:vertical-rl;transform:rotate(180deg);opacity:.9}
.steps button.on{box-shadow:inset 0 0 0 3px var(--bg)}
.steps-l{display:flex;justify-content:space-between;font-size:12px;color:var(--sub)}

.minis{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:8px}
.mini{display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:6px;padding:7px 9px;text-decoration:none;min-width:0}
.mini:hover{border-color:var(--strong)}
.mini i{width:32px;height:32px;border-radius:4px;flex:none;border:1px solid rgba(0,0,0,.1)}
.mini span{display:grid;line-height:1.35;font-size:14px}
.mini code{font-size:12px;color:var(--sub)}

.pager{display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap;font-size:14px;border-top:1px solid var(--line);padding-top:14px}
.cta{justify-self:start;background:var(--strong);color:var(--bg);border-radius:999px;padding:11px 22px;text-decoration:none;font-weight:700;font-size:14px}
.cta:hover{opacity:.88}

.filter{display:grid;gap:10px;position:sticky;top:56px;background:var(--bg);padding-block:10px;z-index:2}
.field{font:inherit;font-size:16px;padding:9px 12px;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--ink);width:100%}
.famnav{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:13px}
.famnav a{color:var(--sub)}
.fam h2{display:flex;align-items:center;gap:8px;margin-bottom:10px}
.fam h2 i{width:12px;height:12px;border-radius:50%}
.fam h2 small{font-size:12px;color:var(--sub);font-weight:400}
.cards{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:8px}
.card{display:flex;align-items:stretch;border:1px solid var(--line);border-radius:6px;overflow:hidden;min-width:0}
.card:hover{border-color:var(--strong)}
.card a{flex:1;display:flex;align-items:center;gap:10px;padding:7px 9px;text-decoration:none;min-width:0}
.card a i{width:34px;height:34px;border-radius:4px;flex:none;border:1px solid rgba(0,0,0,.1)}
.card a span{display:grid;line-height:1.35;min-width:0}
.card a b{font-weight:700;color:var(--strong);font-size:14px}
.card a small{font-size:11px;color:var(--sub)}
.card button{border:0;border-left:1px solid var(--line);background:var(--panel);color:var(--ink);cursor:pointer;padding:0 9px;font:inherit}
.card button code{font-size:12px}
.card button:hover{color:var(--strong)}

footer{border-top:1px solid var(--line);padding-top:18px;font-size:12px;color:var(--sub);display:grid;gap:6px}
footer p{margin:0}
.consult{display:grid;justify-items:center;gap:8px;text-align:center;padding:22px 16px;margin-bottom:14px;background:var(--panel);border-radius:10px}
.consult p{font-size:13px;color:var(--ink)}
.consult-btn{display:inline-block;background:var(--strong);color:var(--bg);text-decoration:none;font-weight:700;font-size:15px;padding:12px 22px;border-radius:999px;letter-spacing:.04em}
.consult-btn:hover{opacity:.88}

.toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom,0px));transform:translate(-50%,20px);background:var(--strong);color:var(--bg);border-radius:6px;padding:10px 16px 10px 12px;display:flex;align-items:center;gap:10px;font-size:14px;opacity:0;pointer-events:none;transition:opacity .18s,transform .18s;z-index:10;max-width:calc(100% - 32px)}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast i{width:18px;height:18px;border-radius:3px;border:1px solid rgba(255,255,255,.4);flex:none}
[hidden]{display:none!important}
@media (prefers-reduced-motion:reduce){.toast{transition:none}}