/* 家系図ガイド（解説記事）の共通スタイル。説明ページ・出典ページと同じ配色 */
:root {
  --paper: #f7f3ea; --paper-raised: #fffdf8; --ink: #23201c; --ink-soft: #5b544b; --rule: #d9d0bf;
  --indigo: #2f4a6d; --indigo-ink: #ffffff; --focus: #2f4a6d;
  --serif: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Noto Serif JP", serif;
  --sans: system-ui, -apple-system, "Hiragino Sans", "Yu Gothic UI", "Meiryo", sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --paper: #1c1a17; --paper-raised: #26231f; --ink: #eee8dc; --ink-soft: #b9b0a2; --rule: #4a443b; --indigo: #8fb0d8; --indigo-ink: #10161f; --focus: #8fb0d8; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 18px; line-height: 1.85; overflow-wrap: anywhere; }
a { color: var(--indigo); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.wrap { max-width: 800px; margin: 0 auto; padding: 0 16px; }
.site-header { border-bottom: 1px solid var(--rule); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 56px; }
.site-header a { color: var(--ink-soft); text-decoration: none; font-size: 15px; padding: 10px 0; }
.brand { font-family: var(--serif); font-weight: 700; font-size: 22px; letter-spacing: .1em; color: var(--ink) !important; }
.breadcrumb { margin: 16px 0 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: 4px; font-size: 14px; color: var(--ink-soft); }
.breadcrumb li + li::before { content: '›'; margin-right: 4px; }
h1, h2, h3 { font-family: var(--serif); line-height: 1.45; }
h1 { font-size: clamp(26px, 5.5vw, 34px); margin: 20px 0 12px; }
h2 { font-size: 23px; margin: 48px 0 12px; padding-top: 10px; border-top: 1px solid var(--rule); }
h3 { font-size: 19px; margin: 28px 0 6px; }
p { margin: 0 0 14px; }
ul, ol { padding-left: 1.4em; margin: 0 0 14px; }
li { margin-bottom: 6px; }
.lead { font-size: 19px; }
.updated { color: var(--ink-soft); font-size: 14px; }
.toc { margin: 24px 0; padding: 12px 20px; background: var(--paper-raised); border: 1px solid var(--rule); border-radius: 6px; }
.toc p { margin: 0 0 4px; font-weight: 700; }
.toc ol { margin: 0; }
.table-wrap { overflow-x: auto; margin: 0 0 16px; }
table { width: 100%; border-collapse: collapse; font-size: 16px; line-height: 1.6; }
th, td { padding: 8px 10px; border: 1px solid var(--rule); text-align: left; vertical-align: top; }
th { background: var(--paper-raised); font-weight: 700; }
.big-char { font-family: var(--serif); font-size: 24px; }
.point { margin: 20px 0; padding: 12px 20px; border-left: 4px solid var(--indigo); background: var(--paper-raised); }
.point p:last-child { margin-bottom: 0; }
figure { margin: 24px 0; }
figure img { display: block; width: 100%; height: auto; border: 1px solid var(--rule); border-radius: 6px; background: #faf8f2; }
figcaption { color: var(--ink-soft); font-size: 15px; margin-top: 8px; }
.cta { margin: 40px 0 0; padding: 20px; background: var(--paper-raised); border: 1px solid var(--rule); border-radius: 6px; }
.cta p { margin-bottom: 12px; }
.button { display: inline-flex; align-items: center; min-height: 52px; padding: 0 24px; border-radius: 6px; background: var(--indigo); color: var(--indigo-ink); font-weight: 700; text-decoration: none; }
.related { padding-left: 1.2em; }
.site-footer { margin-top: 64px; border-top: 1px solid var(--rule); padding: 24px 0 40px; color: var(--ink-soft); font-size: 14px; }
.site-footer p { margin-bottom: 6px; }

/* 異体字の例は、端末にない字でも戸籍の字形で出るよう、アプリと同じ IPAmj明朝の分割フォントで表示する（その字を含むファイルだけ読む） */
@font-face { font-family: "Kakeizu MJ"; src: url("../variants/fonts/mjm-049.woff2") format("woff2"); unicode-range: U+570B; font-display: swap; }
@font-face { font-family: "Kakeizu MJ"; src: url("../variants/fonts/mjm-056.woff2") format("woff2"); unicode-range: U+5D5C; font-display: swap; }
@font-face { font-family: "Kakeizu MJ"; src: url("../variants/fonts/mjm-07f.woff2") format("woff2"); unicode-range: U+6FA4; font-display: swap; }
@font-face { font-family: "Kakeizu MJ"; src: url("../variants/fonts/mjm-080.woff2") format("woff2"); unicode-range: U+6FF1; font-display: swap; }
@font-face { font-family: "Kakeizu MJ"; src: url("../variants/fonts/mjm-0cf.woff2") format("woff2"); unicode-range: U+908A, U+9089; font-display: swap; }
@font-face { font-family: "Kakeizu MJ"; src: url("../variants/fonts/mjm-0e3.woff2") format("woff2"); unicode-range: U+9AD9; font-display: swap; }
@font-face { font-family: "Kakeizu MJ"; src: url("../variants/fonts/mjm-0ec.woff2") format("woff2"); unicode-range: U+9F4B, U+9F4A; font-display: swap; }
@font-face { font-family: "Kakeizu MJ"; src: url("../variants/fonts/mjm-0ed.woff2") format("woff2"); unicode-range: U+FA11; font-display: swap; }
@font-face { font-family: "Kakeizu MJ"; src: url("../variants/fonts/mjm-0fd.woff2") format("woff2"); unicode-range: U+20BB7; font-display: swap; }
.mj { font-family: "Kakeizu MJ", var(--serif); }