/* ===== 型染めの部屋 共通スタイル ===== */

:root{
  --ink:#1a1613;
  --sumi:#2a2420;
  --ai:#1e3a5f;
  --ai-deep:#142840;
  --beni:#a93e2e;
  --kincha:#b88a3e;
  --kinari:#f4ede1;
  --washi:#faf6ec;
  --gray:#8a8074;
  --line:#d9cfb8;
}

*{margin:0;padding:0;box-sizing:border-box}

html{scroll-behavior:smooth}

body{
  font-family:"Shippori Mincho","Noto Serif JP",serif;
  color:var(--ink);
  background:var(--washi);
  line-height:1.85;
  font-feature-settings:"palt";
  background-image:
    radial-gradient(circle at 20% 10%, rgba(30,58,95,.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 90%, rgba(169,62,46,.03) 0%, transparent 50%);
}

a{color:inherit;text-decoration:none;transition:opacity .2s}
a:hover{opacity:.65}

img{max-width:100%;height:auto;display:block}

.container{max-width:1180px;margin:0 auto;padding:0 24px}

/* ===== ヘッダー ===== */
.site-header{
  border-bottom:1px solid var(--line);
  background:var(--washi);
  position:sticky;
  top:0;
  z-index:100;
  backdrop-filter:blur(8px);
  background:rgba(250,246,236,.92);
}
.header-inner{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:18px 24px;
  max-width:1180px;
  margin:0 auto;
}
.logo{
  font-family:"Zen Old Mincho",serif;
  font-weight:900;
  font-size:24px;
  letter-spacing:.08em;
  display:flex;
  align-items:center;
  gap:10px;
}
.logo-mark{
  width:36px;height:36px;
  background:var(--ai-deep);
  color:var(--washi);
  display:grid;place-items:center;
  font-size:18px;
  border-radius:2px;
  position:relative;
}
.logo-mark::after{
  content:"";
  position:absolute;
  inset:3px;
  border:1px solid var(--washi);
  border-radius:1px;
}
nav ul{display:flex;gap:32px;list-style:none;font-size:14px;letter-spacing:.1em}
nav a{position:relative;padding:4px 0}
nav a::after{
  content:"";
  position:absolute;left:0;bottom:-2px;
  width:0;height:1px;background:var(--beni);
  transition:width .3s;
}
nav a:hover::after{width:100%}

/* ===== パンくず ===== */
.breadcrumb{
  padding:14px 0;
  font-size:12px;
  color:var(--gray);
  letter-spacing:.05em;
}
.breadcrumb a:hover{color:var(--beni)}

/* ===== Hero ===== */
.hero{
  position:relative;
  padding:60px 0 80px;
  overflow:hidden;
}
.hero::before{
  content:"型";
  position:absolute;
  font-family:"Zen Old Mincho",serif;
  font-size:480px;
  font-weight:900;
  color:rgba(30,58,95,.05);
  top:-80px;right:-40px;
  line-height:1;
  pointer-events:none;
  z-index:0;
}
.hero-inner{position:relative;z-index:1;max-width:780px}
.hero-eyebrow{
  display:inline-block;
  font-size:11px;
  letter-spacing:.4em;
  color:var(--beni);
  border:1px solid var(--beni);
  padding:6px 16px;
  margin-bottom:28px;
}
h1{
  font-family:"Zen Old Mincho",serif;
  font-size:clamp(36px,5.4vw,68px);
  font-weight:900;
  line-height:1.25;
  letter-spacing:.02em;
  margin-bottom:28px;
}
h1 .accent{
  color:var(--ai-deep);
  position:relative;
}
h1 .accent::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-6px;
  height:6px;
  background:var(--beni);
  opacity:.85;
}
.hero-lead{
  font-size:16px;
  line-height:2;
  color:var(--sumi);
  max-width:640px;
  margin-bottom:32px;
}
.hero-meta{
  display:flex;
  gap:24px;
  font-size:13px;
  color:var(--gray);
  letter-spacing:.08em;
  padding-top:20px;
  border-top:1px solid var(--line);
}
.hero-meta strong{color:var(--ink);font-weight:700;font-size:18px;display:block}

/* ===== セクション共通 ===== */
section{padding:72px 0;position:relative}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  margin-bottom:48px;
  padding-bottom:18px;
  border-bottom:2px solid var(--ink);
}
.section-head-left{display:flex;align-items:baseline;gap:20px;flex-wrap:wrap}
h2{
  font-family:"Zen Old Mincho",serif;
  font-size:clamp(26px,3.4vw,38px);
  font-weight:900;
  letter-spacing:.04em;
  line-height:1.3;
}
.h2-sub{
  font-size:11px;
  letter-spacing:.4em;
  color:var(--beni);
  text-transform:uppercase;
}
.section-more{
  font-size:13px;
  letter-spacing:.15em;
  border-bottom:1px solid var(--ink);
  padding-bottom:2px;
  white-space:nowrap;
}

/* ===== 新着記事 ===== */
.articles-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:36px 28px;
}
.article-card{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.article-thumb{
  aspect-ratio:4/3;
  background:var(--kinari);
  overflow:hidden;
  position:relative;
}
.article-thumb svg{width:100%;height:100%}
.article-card:hover .article-thumb svg{transform:scale(1.04);transition:transform .6s}
.article-cat{
  display:inline-block;
  font-size:11px;
  letter-spacing:.2em;
  color:var(--ai-deep);
  font-weight:700;
}
.article-title{
  font-family:"Zen Old Mincho",serif;
  font-size:18px;
  font-weight:700;
  line-height:1.55;
  letter-spacing:.02em;
}
.article-meta{
  font-size:12px;
  color:var(--gray);
  letter-spacing:.08em;
  display:flex;gap:12px;
}

/* ===== 型染めとは ===== */
.about{
  background:var(--ink);
  color:var(--washi);
  padding:96px 0;
  position:relative;
  overflow:hidden;
}
.about::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    repeating-linear-gradient(45deg, transparent, transparent 20px, rgba(244,237,225,.02) 20px, rgba(244,237,225,.02) 21px);
  pointer-events:none;
}
.about .section-head{border-color:var(--washi)}
.about h2{color:var(--washi)}
.about .h2-sub{color:var(--kincha)}
.about-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  position:relative;
  z-index:1;
}
.about p{
  font-size:15px;
  line-height:2.1;
  margin-bottom:18px;
  color:#e8e0cf;
}
.about-points{list-style:none;display:flex;flex-direction:column;gap:24px}
.about-point{
  border-left:2px solid var(--kincha);
  padding:8px 0 8px 22px;
}
.about-point-num{
  font-family:"Zen Old Mincho",serif;
  font-size:13px;
  color:var(--kincha);
  letter-spacing:.3em;
  display:block;
  margin-bottom:4px;
}
.about-point-title{
  font-family:"Zen Old Mincho",serif;
  font-size:18px;
  font-weight:700;
  margin-bottom:6px;
}
.about-point-desc{font-size:13px;color:#cdc2ac;line-height:1.8}

/* ===== カテゴリ ===== */
.categories{background:var(--kinari)}
.cat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
}
.cat-card{
  background:var(--washi);
  border:1px solid var(--line);
  padding:32px 24px;
  position:relative;
  transition:transform .3s, box-shadow .3s;
}
.cat-card:hover{
  transform:translateY(-4px);
  box-shadow:0 12px 24px -16px rgba(26,22,19,.3);
}
.cat-num{
  font-family:"Zen Old Mincho",serif;
  font-size:12px;
  color:var(--beni);
  letter-spacing:.3em;
  display:block;
  margin-bottom:14px;
}
.cat-name{
  font-family:"Zen Old Mincho",serif;
  font-size:22px;
  font-weight:700;
  margin-bottom:10px;
  letter-spacing:.05em;
}
.cat-desc{font-size:13px;color:var(--sumi);line-height:1.8;margin-bottom:16px}
.cat-count{font-size:11px;color:var(--gray);letter-spacing:.15em}

/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:0}
.faq-item{
  border-bottom:1px solid var(--line);
  padding:24px 0;
}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  font-family:"Zen Old Mincho",serif;
  font-size:18px;
  font-weight:700;
  display:flex;
  gap:16px;
  align-items:flex-start;
  cursor:pointer;
  list-style:none;
}
.faq-q::-webkit-details-marker{display:none}
.faq-q::before{
  content:"Q";
  color:var(--beni);
  font-size:22px;
  flex-shrink:0;
  line-height:1;
}
.faq-q::after{
  content:"+";
  margin-left:auto;
  font-size:24px;
  color:var(--gray);
  transition:transform .3s;
  font-weight:300;
}
details[open] .faq-q::after{transform:rotate(45deg)}
.faq-a{
  padding:18px 0 6px 38px;
  font-size:14px;
  line-height:2;
  color:var(--sumi);
}

/* ===== フッター ===== */
footer{
  background:var(--ai-deep);
  color:var(--kinari);
  padding:64px 0 32px;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr;
  gap:64px;
  margin-bottom:48px;
}
.footer-brand .logo{color:var(--washi);margin-bottom:16px}
.footer-brand .logo-mark{background:var(--washi);color:var(--ai-deep)}
.footer-desc{font-size:13px;line-height:1.9;color:#cdc2ac}
.footer-col h4{
  font-family:"Zen Old Mincho",serif;
  font-size:14px;
  letter-spacing:.2em;
  margin-bottom:18px;
  padding-bottom:10px;
  border-bottom:1px solid rgba(244,237,225,.2);
}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(244,237,225,.15);
  padding-top:24px;
  display:flex;
  justify-content:space-between;
  font-size:11px;
  letter-spacing:.15em;
  color:#a89c84;
}

/* ===== Responsive ===== */
@media (max-width:900px){
  .articles-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr;gap:40px}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  nav ul{gap:18px;font-size:13px}
  .hero::before{font-size:280px;right:-30px}
}
@media (max-width:580px){
  .articles-grid{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr}
  nav ul{display:none}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
}

/* ===== Animation ===== */
@keyframes fadeUp{
  from{opacity:0;transform:translateY(20px)}
  to{opacity:1;transform:translateY(0)}
}
.hero-inner>*{animation:fadeUp .8s ease-out backwards}
.hero-eyebrow{animation-delay:.1s}
h1{animation-delay:.25s}
.hero-lead{animation-delay:.45s}
.hero-meta{animation-delay:.6s}

/* ===== 記事・カテゴリページ用 ===== */

/* === 地域マップカード === */
.region-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:20px;
}
.region-card{
  background:var(--washi);border:1px solid var(--line);
  padding:28px 24px;position:relative;
  transition:transform .3s, box-shadow .3s;
}
.region-card:hover{
  transform:translateY(-4px);
  box-shadow:0 12px 24px -16px rgba(26,22,19,.3);
}
.region-area{
  font-family:"Zen Old Mincho",serif;
  font-size:11px;letter-spacing:.3em;
  color:var(--beni);font-weight:700;
  display:block;margin-bottom:10px;
}
.region-name{
  font-family:"Zen Old Mincho",serif;
  font-size:22px;font-weight:700;
  margin-bottom:12px;letter-spacing:.04em;
  display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;
}
.region-name small{
  font-size:11px;color:var(--gray);
  letter-spacing:.2em;font-weight:400;
}
.region-feat{
  font-size:13px;line-height:1.85;color:var(--sumi);
}
.region-tags{display:flex;gap:6px;margin-top:14px;flex-wrap:wrap}
.region-tag{
  font-size:10px;letter-spacing:.15em;
  background:var(--kinari);border:1px solid var(--line);
  padding:3px 10px;
}

/* === 用語集 === */
.glossary-nav{
  display:flex;flex-wrap:wrap;gap:8px;
  margin:32px 0 48px;padding:20px;
  background:var(--washi);border:1px solid var(--line);
}
.glossary-nav-label{
  font-size:11px;letter-spacing:.3em;
  color:var(--ai-deep);font-weight:700;
  width:100%;margin-bottom:8px;
}
.glossary-nav a{
  display:inline-block;font-size:12px;
  letter-spacing:.15em;padding:6px 12px;
  background:var(--kinari);border:1px solid var(--line);
  font-family:"Zen Old Mincho",serif;font-weight:700;
}
.glossary-nav a:hover{background:var(--ai-deep);color:var(--washi);opacity:1}

.glossary-section{margin-bottom:56px}
.glossary-section-head{
  display:flex;align-items:baseline;gap:18px;
  margin-bottom:24px;padding-bottom:14px;
  border-bottom:1px solid var(--line);
}
.glossary-letter{
  font-family:"Zen Old Mincho",serif;
  font-size:32px;font-weight:900;
  color:var(--beni);line-height:1;
}
.glossary-letter-en{
  font-size:11px;letter-spacing:.3em;
  color:var(--gray);
}
.glossary-list{
  display:flex;flex-direction:column;gap:0;
}
.glossary-entry{
  display:grid;grid-template-columns:200px 1fr;
  gap:24px;padding:18px 0;
  border-bottom:1px dotted var(--line);
}
.glossary-entry:last-child{border-bottom:none}
.glossary-term{
  font-family:"Zen Old Mincho",serif;
}
.glossary-term-name{
  font-size:17px;font-weight:700;
  margin-bottom:3px;color:var(--ink);
}
.glossary-term-reading{
  font-size:11px;color:var(--gray);
  letter-spacing:.15em;
}
.glossary-def{
  font-size:14px;line-height:1.9;color:var(--sumi);
}

@media (max-width:760px){
  .region-grid{grid-template-columns:1fr}
  .glossary-entry{grid-template-columns:1fr;gap:6px;padding:16px 0}
  .glossary-term-name{font-size:16px}
}

/* ===== カテゴリページ ===== */
.cat-hero{
  padding:56px 0 72px;
  border-bottom:1px solid var(--line);
  position:relative;
  overflow:hidden;
}
.cat-hero::before{
  content:attr(data-bg-char);
  position:absolute;
  font-family:"Zen Old Mincho",serif;
  font-size:380px;font-weight:900;
  color:rgba(30,58,95,.05);
  top:-60px;right:-30px;line-height:1;
  pointer-events:none;
}
.cat-hero-inner{position:relative;z-index:1}
.cat-label-en{
  display:inline-block;font-size:11px;letter-spacing:.4em;
  color:var(--beni);border:1px solid var(--beni);
  padding:6px 16px;margin-bottom:24px;
}
.cat-h1{
  font-family:"Zen Old Mincho",serif;
  font-size:clamp(32px,4.5vw,52px);
  font-weight:900;line-height:1.3;letter-spacing:.03em;
  margin-bottom:24px;
}
.cat-lead{
  font-size:16px;line-height:2.05;color:var(--sumi);
  max-width:680px;
}

/* === カテゴリ内 答えボックス === */
.cat-answer{
  background:var(--washi);
  border:1px solid var(--line);
  border-left:4px solid var(--beni);
  padding:24px 28px;margin:0 0 56px;
}
.cat-answer-label{
  display:inline-block;font-size:10px;letter-spacing:.4em;
  color:var(--beni);font-weight:700;margin-bottom:10px;
}
.cat-answer p{
  font-size:15px;line-height:2;color:var(--sumi);margin:0;
}

/* === カテゴリ内セクション見出し === */
.cat-section{padding:64px 0}
.cat-section h2{
  font-family:"Zen Old Mincho",serif;
  font-size:clamp(24px,3.2vw,32px);
  font-weight:900;letter-spacing:.04em;
  margin-bottom:36px;padding-bottom:16px;
  border-bottom:2px solid var(--ink);
  display:flex;align-items:baseline;gap:18px;flex-wrap:wrap;
}
.cat-section h2 small{
  font-size:11px;letter-spacing:.4em;color:var(--beni);
  font-family:sans-serif;font-weight:700;
}

/* === 用語カード === */
.term-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:20px;
}
.term-card{
  background:var(--washi);border:1px solid var(--line);
  padding:24px;
}
.term-name{
  font-family:"Zen Old Mincho",serif;
  font-size:18px;font-weight:700;
  margin-bottom:6px;color:var(--ink);
}
.term-reading{
  font-size:11px;color:var(--gray);
  letter-spacing:.2em;margin-bottom:14px;
}
.term-desc{
  font-size:14px;line-height:1.9;color:var(--sumi);
}

/* === タイムライン === */
.timeline{
  list-style:none;padding:0;margin:0;
  border-left:2px solid var(--ai-deep);
  margin-left:8px;
}
.timeline-item{
  padding:0 0 36px 28px;position:relative;
}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
  content:"";position:absolute;
  left:-9px;top:6px;width:14px;height:14px;
  background:var(--beni);border:3px solid var(--washi);
  border-radius:50%;
}
.timeline-era{
  font-family:"Zen Old Mincho",serif;
  font-size:16px;font-weight:700;
  color:var(--ai-deep);margin-bottom:6px;letter-spacing:.05em;
}
.timeline-desc{
  font-size:14px;line-height:1.9;color:var(--sumi);
}

/* === 記事カード(カテゴリ用) === */
.cat-articles{
  display:grid;grid-template-columns:repeat(2,1fr);gap:24px;
}
.cat-article{
  display:flex;gap:20px;padding:20px;
  background:var(--washi);border:1px solid var(--line);
  transition:border-color .25s;
}
.cat-article:hover{border-color:var(--ai-deep);opacity:1}
.cat-article-thumb{
  width:120px;flex-shrink:0;aspect-ratio:1;
  background:var(--kinari);overflow:hidden;
}
.cat-article-thumb svg{width:100%;height:100%}
.cat-article-cat{
  font-size:10px;letter-spacing:.25em;
  color:var(--beni);font-weight:700;
  display:block;margin-bottom:6px;
}
.cat-article-title{
  font-family:"Zen Old Mincho",serif;
  font-size:15px;font-weight:700;line-height:1.55;margin-bottom:8px;
}
.cat-article-meta{
  font-size:11px;color:var(--gray);letter-spacing:.08em;
}

/* レスポンシブ追加 */
@media (max-width:760px){
  .term-grid{grid-template-columns:1fr}
  .cat-articles{grid-template-columns:1fr}
  .cat-hero::before{font-size:240px;right:-20px}
  .cat-hero{padding:36px 0 48px}
}

/* ===== 共通変数 ===== */
:root{
  --ink:#1a1613;
  --sumi:#2a2420;
  --ai:#1e3a5f;
  --ai-deep:#142840;
  --beni:#a93e2e;
  --kincha:#b88a3e;
  --kinari:#f4ede1;
  --washi:#faf6ec;
  --gray:#8a8074;
  --line:#d9cfb8;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Shippori Mincho","Noto Serif JP",serif;
  color:var(--ink);
  background:var(--washi);
  line-height:1.95;
  font-feature-settings:"palt";
}
a{color:inherit;text-decoration:none;transition:opacity .2s}
a:hover{opacity:.65}
img{max-width:100%;height:auto;display:block}

.container{max-width:1180px;margin:0 auto;padding:0 24px}
.container-narrow{max-width:760px;margin:0 auto;padding:0 24px}

/* ===== ヘッダー(トップと同じ) ===== */
.site-header{
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:100;
  backdrop-filter:blur(8px);
  background:rgba(250,246,236,.92);
}
.header-inner{
  display:flex;justify-content:space-between;align-items:center;
  padding:18px 24px;max-width:1180px;margin:0 auto;
}
.logo{
  font-family:"Zen Old Mincho",serif;
  font-weight:900;font-size:24px;letter-spacing:.08em;
  display:flex;align-items:center;gap:10px;
}
.logo-mark{
  width:36px;height:36px;
  background:var(--ai-deep);color:var(--washi);
  display:grid;place-items:center;
  font-size:18px;border-radius:2px;position:relative;
}
.logo-mark::after{
  content:"";position:absolute;inset:3px;
  border:1px solid var(--washi);border-radius:1px;
}
nav ul{display:flex;gap:32px;list-style:none;font-size:14px;letter-spacing:.1em}
nav a{position:relative;padding:4px 0}
nav a::after{
  content:"";position:absolute;left:0;bottom:-2px;
  width:0;height:1px;background:var(--beni);transition:width .3s;
}
nav a:hover::after{width:100%}

/* ===== パンくず ===== */
.breadcrumb{
  padding:14px 0;font-size:12px;color:var(--gray);letter-spacing:.05em;
}
.breadcrumb a:hover{color:var(--beni)}
.breadcrumb span{margin:0 8px;color:var(--line)}

/* ===== 記事ヘッダー ===== */
.article-header{
  padding:40px 0 56px;
  border-bottom:1px solid var(--line);
  margin-bottom:48px;
}
.article-cat-tag{
  display:inline-block;
  font-size:11px;letter-spacing:.4em;
  color:var(--washi);background:var(--ai-deep);
  padding:6px 16px;margin-bottom:24px;
}
.article-h1{
  font-family:"Zen Old Mincho",serif;
  font-size:clamp(28px,4.2vw,44px);
  font-weight:900;line-height:1.4;letter-spacing:.02em;
  margin-bottom:24px;
}
.article-meta{
  display:flex;gap:24px;font-size:12px;
  color:var(--gray);letter-spacing:.1em;flex-wrap:wrap;
}
.article-meta strong{color:var(--ink);font-weight:700}

/* ===== 記事本文 ===== */
.article-body{padding-bottom:80px}
.article-body p{
  font-size:16px;line-height:2.1;margin-bottom:24px;color:var(--sumi);
}
.article-body h2{
  font-family:"Zen Old Mincho",serif;
  font-size:clamp(22px,3vw,30px);font-weight:900;
  line-height:1.45;letter-spacing:.04em;
  margin:64px 0 24px;padding:18px 0 14px;
  border-top:2px solid var(--ink);border-bottom:1px solid var(--line);
  display:flex;align-items:baseline;gap:14px;
}
.article-body h2::before{
  content:"";display:inline-block;
  width:14px;height:14px;background:var(--beni);
  flex-shrink:0;transform:translateY(2px);
}
.article-body h3{
  font-family:"Zen Old Mincho",serif;
  font-size:20px;font-weight:700;
  margin:40px 0 16px;
  padding-left:14px;
  border-left:4px solid var(--ai-deep);
  line-height:1.5;
}
.article-body strong{color:var(--ink);font-weight:700}
.article-body em{font-style:normal;background:linear-gradient(transparent 60%, rgba(184,138,62,.35) 60%);padding:0 2px}
.article-body ul,.article-body ol{
  margin:0 0 24px 0;padding-left:24px;
}
.article-body li{
  font-size:16px;line-height:2;margin-bottom:8px;color:var(--sumi);
}

/* ===== 結論ボックス(AEO用) ===== */
.answer-box{
  background:var(--ink);color:var(--washi);
  padding:28px 32px;margin:32px 0 40px;
  border-left:6px solid var(--beni);
  position:relative;
}
.answer-box::before{
  content:"A";position:absolute;top:18px;right:24px;
  font-family:"Zen Old Mincho",serif;font-size:48px;
  color:var(--beni);line-height:1;opacity:.7;
}
.answer-label{
  display:inline-block;font-size:10px;letter-spacing:.4em;
  color:var(--kincha);margin-bottom:10px;
}
.answer-box p{
  font-size:16px;line-height:1.95;color:var(--washi);margin:0;
}
.answer-box strong{color:#fff;font-weight:700;border-bottom:2px solid var(--kincha)}
.answer-box em{color:var(--kincha);font-style:normal;background:none}

/* ===== 比較テーブル ===== */
.compare-table{
  width:100%;border-collapse:collapse;
  margin:24px 0 40px;font-size:14px;
  background:var(--washi);border:1px solid #c4b896;
}
.compare-table th,.compare-table td{
  padding:14px 16px;text-align:left;
  border-bottom:1px solid #c4b896;border-right:1px solid #c4b896;vertical-align:top;
}
.compare-table th:last-child,.compare-table td:last-child{border-right:none}
.compare-table th{
  background:var(--kinari);font-weight:700;
  letter-spacing:.05em;color:var(--ink);
  border-right:1px solid #c4b896;
}
.compare-table td{line-height:1.8;color:var(--sumi)}
.compare-table tr:last-child th,.compare-table tr:last-child td{border-bottom:none}

/* ===== ステップ ===== */
.steps{
  list-style:none;padding:0;
  display:flex;flex-direction:column;gap:0;
  margin:24px 0 40px;
}
.step-item{
  display:grid;grid-template-columns:80px 1fr;
  gap:24px;padding:24px 0;
  border-bottom:1px solid var(--line);
}
.step-item:first-child{border-top:1px solid var(--line)}
.step-num{
  font-family:"Zen Old Mincho",serif;
  font-size:36px;font-weight:900;
  color:var(--ai-deep);line-height:1;
  letter-spacing:-.02em;
}
.step-num small{
  display:block;font-size:10px;letter-spacing:.3em;
  color:var(--gray);margin-bottom:6px;font-family:sans-serif;font-weight:400;
}
.step-title{
  font-family:"Zen Old Mincho",serif;
  font-size:19px;font-weight:700;margin-bottom:10px;
  color:var(--ink);
}
.step-desc{font-size:15px;line-height:1.95;color:var(--sumi)}

/* ===== TOC ===== */
.toc{
  background:var(--kinari);border:1px solid var(--line);
  padding:24px 28px;margin:0 0 48px;
}
.toc-label{
  font-family:"Zen Old Mincho",serif;
  font-size:13px;letter-spacing:.3em;
  color:var(--ai-deep);margin-bottom:14px;
  padding-bottom:10px;border-bottom:1px solid var(--line);
}
.toc ol{list-style:none;padding:0;margin:0;counter-reset:toc}
.toc li{
  counter-increment:toc;font-size:14px;
  padding:6px 0;line-height:1.6;
}
.toc li::before{
  content:counter(toc,decimal-leading-zero) ".";
  color:var(--beni);font-weight:700;
  margin-right:10px;font-family:"Zen Old Mincho",serif;
}
.toc a{color:var(--sumi)}

/* ===== FAQ ===== */
.faq-section{
  background:var(--ink);color:var(--washi);
  padding:64px 0;margin-top:40px;
}
.faq-section h2{
  font-family:"Zen Old Mincho",serif;
  font-size:28px;font-weight:900;letter-spacing:.04em;
  margin-bottom:32px;padding-bottom:18px;
  border-bottom:1px solid rgba(244,237,225,.3);
}
.faq-section .faq-item{
  border-bottom:1px solid rgba(244,237,225,.15);
  padding:24px 0;
}
.faq-section .faq-q{
  font-family:"Zen Old Mincho",serif;
  font-size:17px;font-weight:700;
  display:flex;gap:14px;align-items:flex-start;
  cursor:pointer;list-style:none;color:var(--washi);
}
.faq-section .faq-q::-webkit-details-marker{display:none}
.faq-section .faq-q::before{
  content:"Q";color:var(--kincha);font-size:22px;
  flex-shrink:0;line-height:1;
}
.faq-section .faq-q::after{
  content:"+";margin-left:auto;font-size:24px;
  color:var(--kincha);transition:transform .3s;
}
.faq-section details[open] .faq-q::after{transform:rotate(45deg)}
.faq-section .faq-a{
  padding:14px 0 6px 36px;font-size:14px;line-height:2;
  color:#e8e0cf;
}

/* ===== 関連記事 ===== */
.related{padding:64px 0;background:var(--kinari)}
.related h2{
  font-family:"Zen Old Mincho",serif;
  font-size:24px;font-weight:900;letter-spacing:.04em;
  margin-bottom:28px;padding-bottom:14px;
  border-bottom:2px solid var(--ink);
}
.related-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:24px;
}
.related-card{
  display:flex;gap:18px;padding:20px;
  background:var(--washi);border:1px solid var(--line);
  transition:border-color .25s;
}
.related-card:hover{border-color:var(--ai-deep);opacity:1}
.related-thumb{
  width:100px;flex-shrink:0;aspect-ratio:1;
  background:var(--kinari);overflow:hidden;
}
.related-thumb svg{width:100%;height:100%}
.related-cat{
  font-size:10px;letter-spacing:.25em;
  color:var(--beni);font-weight:700;
  display:block;margin-bottom:6px;
}
.related-title{
  font-family:"Zen Old Mincho",serif;
  font-size:15px;font-weight:700;line-height:1.55;
}

/* ===== フッター ===== */
footer{
  background:var(--ai-deep);color:var(--kinari);
  padding:56px 0 28px;
}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr;
  gap:64px;margin-bottom:40px;
}
.footer-brand .logo{color:var(--washi);margin-bottom:16px}
.footer-brand .logo-mark{background:var(--washi);color:var(--ai-deep)}
.footer-desc{font-size:13px;line-height:1.9;color:#cdc2ac}
.footer-col h4{
  font-family:"Zen Old Mincho",serif;
  font-size:14px;letter-spacing:.2em;
  margin-bottom:16px;padding-bottom:10px;
  border-bottom:1px solid rgba(244,237,225,.2);
}
.footer-col ul{
  list-style:none;display:flex;flex-direction:column;
  gap:10px;font-size:13px;
}
.footer-bottom{
  border-top:1px solid rgba(244,237,225,.15);
  padding-top:24px;display:flex;justify-content:space-between;
  font-size:11px;letter-spacing:.15em;color:#a89c84;
}

/* ===== Back to top ===== */
.back-to-top{
  display:inline-block;margin-top:32px;
  font-size:13px;letter-spacing:.2em;
  border-bottom:1px solid var(--ink);padding-bottom:2px;
}

/* ===== Responsive ===== */
@media (max-width:760px){
  nav ul{gap:18px;font-size:13px}
  .article-h1{font-size:26px}
  .article-body p,.article-body li{font-size:15px;line-height:2}
  .article-body h2{font-size:21px;margin:48px 0 20px}
  .article-body h3{font-size:18px}
  .step-item{grid-template-columns:60px 1fr;gap:16px}
  .step-num{font-size:28px}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .answer-box{padding:22px 24px}
  .answer-box::before{font-size:36px}
  .compare-table{font-size:13px}
  .compare-table th,.compare-table td{padding:12px 10px}
}
@media (max-width:580px){
  nav ul{display:none}
  .article-header{padding:24px 0 36px;margin-bottom:32px}
}