/* ===== デザイン案A：エディトリアル（雑誌風） ===== */
:root {
  --color-bg: #fafaf7;
  --color-surface: #ffffff;
  --color-text: #1c1c1c;
  --color-sub: #6e6c66;
  --color-line: #e3e0d8;
  --color-accent: #b0532c;
  --font-serif: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Noto Serif JP", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", Meiryo, sans-serif;
  --width-wide: 1080px;
  --width-text: 680px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.wrap {
  width: 100%;
  max-width: var(--width-wide);
  margin: 0 auto;
  padding: 0 20px;
}

.narrow {
  max-width: var(--width-text);
}

/* 画像の代わりの塗り */
.ph {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: #8f8b82;
  background: linear-gradient(135deg, #e9e5dc, #d9d3c7);
}

/* ===== ヘッダー ===== */
.site-header {
  border-bottom: 1px solid var(--color-line);
}

.site-header .wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 20px;
  padding-bottom: 12px;
}

.site-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  letter-spacing: 0.12em;
  text-decoration: none;
}

/* カテゴリーのメニューはスマホ・タブレットでは出さない（PC のみ） */
.site-nav {
  display: none;
}

.site-nav ul {
  display: flex;
  gap: 20px;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  white-space: nowrap;
  list-style: none;
}

.site-nav a {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--color-sub);
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--color-accent);
}

/* ===== 共通の小さな部品 ===== */
.label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--color-accent);
  text-decoration: none;
}

.date {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--color-sub);
  font-variant-numeric: tabular-nums;
}

.section-heading {
  display: flex;
  gap: 12px;
  align-items: center;
  margin: 56px 0 8px;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--color-sub);
}

.section-heading::after {
  flex: 1;
  height: 1px;
  content: "";
  background: var(--color-line);
}

/* ===== トップ：注目記事 ===== */
.feature {
  display: block;
  margin-top: 32px;
  text-decoration: none;
}

.feature-image {
  aspect-ratio: 3 / 2;
}

.feature-body {
  padding-top: 20px;
}

.feature-title {
  margin: 8px 0 12px;
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 600;
  line-height: 1.5;
}

.feature-excerpt {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-sub);
}

/* ===== トップ：記事の一覧（番号付きの行） ===== */
.index-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: post;
}

.index-item {
  border-bottom: 1px solid var(--color-line);
  counter-increment: post;
}

.index-item a {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 4px 12px;
  padding: 20px 0;
  text-decoration: none;
}

.index-item a::before {
  grid-row: span 3;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--color-accent);
  content: counter(post, decimal-leading-zero);
}

.index-meta {
  display: flex;
  gap: 12px;
  align-items: baseline;
}

.index-title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.5;
}

.index-item a:hover .index-title {
  color: var(--color-accent);
}

.index-excerpt {
  display: none;
  margin: 0;
  font-size: 0.85rem;
  color: var(--color-sub);
}

.pager {
  display: flex;
  justify-content: space-between;
  margin-top: 24px;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
}

.pager a {
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

/* カテゴリーの一覧 */
.category-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.category-list a {
  font-family: var(--font-serif);
  font-size: 1rem;
  text-decoration: none;
}

.category-list span {
  margin-left: 4px;
  font-size: 0.75rem;
  color: var(--color-sub);
}

/* ===== 記事ページ ===== */
.article-header {
  padding-top: 48px;
  text-align: center;
}

.article-title {
  margin: 12px 0 16px;
  font-family: var(--font-serif);
  font-size: 1.7rem;
  font-weight: 600;
  line-height: 1.55;
}

/* 公開日と更新日（更新していなければ公開日のみ） */
/* 左に PR の印、右に日付を縦に並べる。全体は中央に置く */
.article-dates {
  display: inline-flex;
  gap: 14px;
  align-items: center;
}

/* 広告を含む記事であることを示す印（ステマ規制への対応） */
.pr-badge {
  flex-shrink: 0;
  padding: 1px 7px;
  font-size: 0.68rem;
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: 0.12em;
  color: var(--color-sub);
  border: 1px solid var(--color-sub);
}

/* ラベルと日付を2列でそろえる */
.date-list {
  display: grid;
  grid-template-columns: auto auto;
  gap: 2px 12px;
  margin: 0;
  font-size: 0.75rem;
  line-height: 1.7;
  letter-spacing: 0.08em;
  color: var(--color-sub);
  text-align: left;
  font-variant-numeric: tabular-nums;
}

.date-list dt,
.date-list dd {
  margin: 0;
}

.article-image {
  aspect-ratio: 16 / 9;
  margin: 32px 0 40px;
}

.article-body {
  font-size: 1rem;
  line-height: 2.05;
}

.article-body p {
  margin: 0 0 1.6em;
}

.article-body h2 {
  margin: 64px 0 20px;
  padding-top: 20px;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  line-height: 1.55;
  border-top: 1px solid var(--color-text);
}

.article-body h3 {
  margin: 40px 0 12px;
  font-size: 1.05rem;
  font-weight: 700;
}

.article-body h3::before {
  margin-right: 8px;
  color: var(--color-accent);
  content: "—";
}

.article-body a {
  color: var(--color-accent);
  text-underline-offset: 3px;
}

.article-body ul {
  padding-left: 1.2em;
}

.article-body blockquote {
  position: relative;
  margin: 32px 0;
  padding: 8px 0 8px 40px;
  font-family: var(--font-serif);
  color: var(--color-sub);
}

.article-body blockquote::before {
  position: absolute;
  top: -8px;
  left: 0;
  font-size: 3rem;
  line-height: 1;
  color: var(--color-line);
  content: "“";
}

.article-body table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  font-size: 0.85rem;
  white-space: nowrap;
}

.article-body th,
.article-body td {
  padding: 10px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-line);
}

.article-body th {
  font-weight: 600;
  border-bottom-color: var(--color-text);
}

/* 目次 */
.toc {
  margin: 0 0 48px;
  padding: 20px 24px;
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

.toc-title {
  margin: 0 0 8px;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--color-sub);
}

.toc ol {
  margin: 0;
  padding-left: 1.4em;
  font-family: var(--font-serif);
}

.toc a {
  text-decoration: none;
}

/* 商品紹介ボックス */
.product {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 16px;
  margin: 40px 0;
  padding: 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
}

.product-image {
  aspect-ratio: 1;
}

.product-name {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
}

.product-maker {
  margin: 4px 0 0;
  font-size: 0.75rem;
  color: var(--color-sub);
}

.product-buttons {
  display: flex;
  flex-wrap: wrap;
  grid-column: 1 / -1;
  gap: 8px;
}

.product-buttons a {
  flex: 1;
  min-width: 96px;
  padding: 8px 12px;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-align: center;
  text-decoration: none;
  border: 1px solid var(--color-text);
  transition: background 0.2s, color 0.2s;
}

.product-buttons a:hover {
  color: var(--color-surface);
  background: var(--color-text);
}

/* 前後の記事 */
.article-nav {
  display: grid;
  gap: 1px;
  margin: 64px 0 0;
  background: var(--color-line);
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

.article-nav a {
  display: block;
  padding: 20px 0;
  text-decoration: none;
  background: var(--color-bg);
}

.article-nav span {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--color-sub);
}

.article-nav strong {
  font-family: var(--font-serif);
  font-weight: 600;
}

/* 書いた人 */
.author {
  display: flex;
  gap: 16px;
  align-items: center;
  margin: 48px 0 0;
}

.author-image {
  display: block;
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  object-fit: cover;
  border-radius: 50%;
}

.author-name {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
}

.author-text {
  margin: 0;
  font-size: 0.85rem;
  color: var(--color-sub);
}

/* ===== Hugo 用の追加 ===== */
/* カテゴリー・アーカイブのページの見出し */
.list-header {
  padding: 48px 0 8px;
  text-align: center;
}

.list-title {
  margin: 8px 0 0;
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 600;
}

/* 目次（Hugo が出力する入れ子の ol） */
.toc ol ol {
  padding-left: 1.2em;
  font-size: 0.92em;
}

/* 固定ページ（About など）。本文の上の余白を記事より詰める */
.page-body {
  margin-top: 40px;
}

/* ボタン形のリンク（Contact のフォームへのリンクなど） */
.button-wrap {
  margin: 32px 0;
  text-align: center;
}

.article-body .button {
  display: inline-block;
  padding: 12px 32px;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  color: var(--color-text);
  text-decoration: none;
  border: 1px solid var(--color-text);
  transition: background 0.2s, color 0.2s;
}

.article-body .button:hover {
  color: var(--color-bg);
  background: var(--color-text);
}

/* 前後の記事が片方しかないときの空欄 */
.article-nav > span {
  background: var(--color-bg);
}

/* ===== フッター ===== */
.site-footer {
  margin-top: 96px;
  padding: 40px 0;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--color-sub);
  border-top: 1px solid var(--color-line);
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: space-between;
}

.site-footer ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer a {
  text-decoration: none;
}

/* ===== タブレット以上 ===== */
@media (min-width: 640px) {
  .index-excerpt {
    display: block;
  }

  .article-nav {
    grid-template-columns: 1fr 1fr;
  }

  .article-nav a:last-child {
    text-align: right;
  }

  .product {
    grid-template-columns: 120px 1fr;
  }

  .product-buttons {
    grid-column: 2;
  }
}

/* ===== PC ===== */
@media (min-width: 960px) {
  .site-header .wrap {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
    padding-top: 28px;
    padding-bottom: 20px;
  }

  .site-title {
    font-size: 1.75rem;
  }

  .site-nav {
    display: block;
  }

  .feature {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 48px;
    align-items: center;
    margin-top: 48px;
  }

  .feature-body {
    padding-top: 0;
  }

  .feature-title {
    font-size: 2rem;
  }

  .article-header {
    padding-top: 72px;
  }

  .article-title {
    font-size: 2.1rem;
  }
}