:root {
  --ink: #1a2038;
  --ink-soft: #4a5170;
  --night: #131a30;
  --paper: #f7f8fb;
  --gold: #9c8244;
  --violet: #574a80;
  --rule: #dfe2ec;
}

* { box-sizing: border-box; }

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP",
    "Yu Gothic Medium", "Yu Gothic", Meiryo, sans-serif;
  font-size: 1rem;
  line-height: 1.9;
  letter-spacing: 0.02em;
}

/* 上部の帯 */
.masthead {
  background: var(--night);
  border-bottom: 1px solid var(--gold);
}

.masthead__inner {
  max-width: 42rem;
  margin: 0 auto;
  padding: 1.4rem 1.5rem;
}

.masthead a {
  color: #f2f3f8;
  text-decoration: none;
  font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  font-size: 1.05rem;
  letter-spacing: 0.22em;
}

main {
  max-width: 42rem;
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
}

/* 見出し */
h1 {
  font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  font-size: 1.85rem;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.08em;
  margin: 0 0 1.2rem;
}

/* 見出しの下の一本線。中央に星をひとつ置く */
.rule {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 2.4rem;
  color: var(--gold);
}

.rule::before,
.rule::after {
  content: "";
  height: 1px;
  background: currentColor;
  opacity: 0.55;
}

.rule::before { width: 3.2rem; flex: none; }
.rule::after { flex: 1; }

.rule svg { display: block; flex: none; }

h2 {
  font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin: 3rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--rule);
}

h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--violet);
  margin: 2.2rem 0 0.8rem;
}

/* 本文 */
p { margin: 0 0 1.2rem; }

ol, ul { margin: 0 0 1.4rem; padding-left: 1.6rem; }
li { margin-bottom: 0.5rem; }
li > ul, li > ol { margin: 0.6rem 0 0.8rem; }

strong { font-weight: 600; }

a { color: var(--violet); }

.updated {
  color: var(--ink-soft);
  font-size: 0.875rem;
  margin: -0.4rem 0 0;
}

.lead { margin-bottom: 2rem; }

/* 問い合わせ先などの囲み */
.panel {
  background: #fff;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--gold);
  padding: 1.3rem 1.5rem;
  margin: 0 0 1.6rem;
}

.panel p:last-child { margin-bottom: 0; }

.mail {
  font-size: 1.1rem;
  letter-spacing: 0.03em;
  word-break: break-all;
}

/* FAQ */
.qa { margin-bottom: 1.8rem; }

.qa__q {
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.qa__q::before {
  content: "Q";
  color: var(--gold);
  font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  margin-right: 0.6rem;
}

.qa p { margin-bottom: 0.6rem; }

/* 下部 */
footer {
  border-top: 1px solid var(--rule);
  margin-top: 4rem;
  padding-top: 1.6rem;
  color: var(--ink-soft);
  font-size: 0.875rem;
}

footer ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.6rem;
}

@media (max-width: 480px) {
  body { line-height: 1.85; }
  h1 { font-size: 1.5rem; }
  main { padding: 2.2rem 1.25rem 3rem; }
  .rule::before { width: 2rem; }
}

a:focus-visible,
.masthead a:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}