@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700;900&display=swap');

:root {
  --bg:     #FFFFFF;
  --mid:    #F7F5F2;
  --white:  #FFFFFF;
  --navy:   #2C2420;
  --navy2:  #4A3728;
  --accent: #8B6914;
  --accentL:#F5EDD8;
  --deep:   #1A120E;
  --steel:  #7A6A5A;
  --border: #E8E4DF;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Noto Sans JP', sans-serif;
  color: var(--navy);
  background: var(--bg);
  line-height: 1.8;
  overflow-x: hidden;
}

/* ====== ナビ ====== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 28px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-logo-name { font-size: 15px; font-weight: 700; color: var(--navy); }
.nav-logo-sub  { font-size: 10px; color: var(--steel); margin-top: 1px; }
.nav-right { display: flex; align-items: center; gap: 14px; }
.nav-ig { color: var(--steel); transition: color 0.2s; }
.nav-ig:hover { color: var(--navy); }
.nav-link {
  font-size: 13px;
  color: var(--navy);
  text-decoration: none;
  font-weight: 500;
  letter-spacing: 0.5px;
  transition: color 0.2s;
}
.nav-link:hover { color: var(--accent); }
.btn { display: inline-block; font-weight: 500; text-decoration: none; border-radius: 3px; transition: all 0.2s; }
.btn-dark { background: var(--navy); color: var(--white); padding: 10px 26px; font-size: 13px; }
.btn-dark:hover { background: var(--navy2); }

/* ====== 記事本体 ====== */
.article-wrapper {
  max-width: 720px;
  margin: 0 auto;
  padding: 120px 24px 80px;
}

.article-meta {
  font-size: 12px;
  color: var(--steel);
  letter-spacing: 1px;
  margin-bottom: 24px;
}

.article-title {
  font-size: 26px;
  font-weight: 900;
  color: var(--navy);
  line-height: 1.6;
  margin-bottom: 12px;
}
.article-title-sub {
  font-size: 17px;
  font-weight: 500;
  color: var(--navy2);
  line-height: 1.7;
  margin-bottom: 48px;
}

.article-lead {
  font-size: 15px;
  line-height: 2.1;
  color: var(--navy);
  margin-bottom: 56px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}
.article-lead strong {
  color: var(--accent);
  font-weight: 700;
}

.article-body h2 {
  font-size: 20px;
  font-weight: 900;
  color: var(--navy);
  line-height: 1.6;
  margin: 64px 0 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accentL);
}

.article-body p {
  font-size: 15px;
  line-height: 2.1;
  color: var(--navy);
  margin-bottom: 24px;
}

.article-body strong {
  color: var(--accent);
  font-weight: 700;
}

.article-body ol, .article-body ul {
  margin: 0 0 24px;
  padding-left: 1.5em;
}
.article-body li {
  font-size: 15px;
  line-height: 2.0;
  margin-bottom: 8px;
}

.article-body .biz-block {
  background: var(--mid);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 28px 24px;
  margin: 32px 0;
}
.article-body .biz-block h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}
.article-body .biz-block p {
  font-size: 14px;
  margin-bottom: 14px;
}
.article-body .biz-block p:last-child {
  margin-bottom: 0;
}

.article-body .next-preview {
  background: var(--accentL);
  border-radius: 6px;
  padding: 28px 24px;
  margin: 48px 0 0;
}
.article-body .next-preview-label {
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 10px;
}
.article-body .next-preview p {
  font-size: 14px;
  line-height: 1.9;
  margin-bottom: 0;
  color: var(--navy2);
}

.article-hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 56px 0;
}

/* ====== 著者 ====== */
.author-box {
  background: var(--mid);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 32px 28px;
  margin-top: 64px;
  display: flex;
  gap: 24px;
  align-items: center;
}
.author-photo {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}
.author-info-name {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}
.author-info-role {
  font-size: 12px;
  color: var(--steel);
  margin-bottom: 8px;
}
.author-info-desc {
  font-size: 13px;
  line-height: 1.8;
  color: var(--navy2);
}

/* ====== お知らせ枠（フェス告知用） ====== */
.article-notice {
  background: var(--bg);
  border: 2px solid var(--accent);
  border-radius: 6px;
  padding: 32px 28px;
  margin-top: 48px;
}
.article-notice-label {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 12px;
}
.article-notice h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.6;
  margin-bottom: 16px;
}
.article-notice p {
  font-size: 14px;
  line-height: 1.9;
  color: var(--navy2);
  margin-bottom: 14px;
}
.article-notice-link {
  display: inline-block;
  margin-top: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
}
.article-notice-link:hover { opacity: 0.7; }

/* ====== CTA ====== */
.article-cta {
  text-align: center;
  /* 21本中20本のインラインCSSが 56px だったので、多数派に合わせる。
     base.css の初版は 32px で、そのままだと20本でCTA上の余白が縮んでいた
     （2026-08-11 の照合で発覚）。分離は見た目を変えないのが前提。 */
  margin-top: 56px;
  padding: 48px 24px;
  background: var(--accentL);
  border-radius: 6px;
}
.article-cta p {
  font-size: 14px;
  color: var(--navy2);
  margin-bottom: 20px;
  line-height: 1.8;
}
.btn-accent {
  background: var(--accent);
  color: var(--white);
  padding: 14px 36px;
  font-size: 14px;
  font-weight: 700;
}
.btn-accent:hover { opacity: 0.85; }

/* ====== フッター ====== */
.footer {
  text-align: center;
  padding: 48px 24px 32px;
  border-top: 1px solid var(--border);
  margin-top: 80px;
}
.footer-logo { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.footer-sub  { font-size: 12px; color: var(--steel); margin-bottom: 20px; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; font-size: 12px; margin-bottom: 16px; }
.footer-links a { color: var(--steel); text-decoration: none; }
.footer-links a:hover { color: var(--navy); }
.footer-copy { font-size: 11px; opacity: 0.4; }

/* ====== 他のコラム ====== */
.related-section {
  margin: 64px 0 56px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}
.related-section-label {
  font-size: 11px;
  letter-spacing: 3px;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 24px;
  text-align: center;
}
.related-card {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  margin-bottom: 16px;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
.related-card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 16px rgba(139, 105, 20, 0.08);
  transform: translateY(-2px);
}
.related-card a {
  display: block;
  padding: 24px 28px;
  color: inherit;
  text-decoration: none;
}
.related-card-meta {
  font-size: 11px;
  color: var(--steel);
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}
.related-card h3 {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--navy);
  margin-bottom: 8px;
}
.related-card p {
  font-size: 12px;
  color: var(--steel);
  line-height: 1.8;
  margin: 0;
}
.related-list-link {
  display: block;
  text-align: center;
  margin-top: 20px;
  font-size: 13px;
  color: var(--accent);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 1px;
}
.related-list-link:hover { text-decoration: underline; }

/* ====== レスポンシブ ====== */
@media (max-width: 600px) {
  .article-title { font-size: 21px; }
  .article-title-sub { font-size: 15px; }
  .article-body h2 { font-size: 18px; }
  .author-box { flex-direction: column; text-align: center; }
  .nav { padding: 12px 16px; }
  .related-card a { padding: 20px 18px; }
}