/* 食品キャリアラボ — 1色 + 無彩色の引き算デザイン */
:root {
  --color-primary: #17567e;
  --color-primary-soft: #eaf1f6;
  --color-text: #22262a;
  --color-text-muted: #6b7178;
  --color-bg: #fbfbfa;
  --color-surface: #ffffff;
  --color-border: #e4e6e8;
  --z-header: 100;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic",
    "Noto Sans JP", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ヘッダー */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 28px 0 24px;
}

.site-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.site-tagline {
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--color-text-muted);
}

main.container {
  padding-top: 48px;
  padding-bottom: 80px;
}

/* 見出し */
h1 {
  font-size: 28px;
  line-height: 1.5;
  margin: 0 0 16px;
}

h2 {
  font-size: 22px;
  line-height: 1.5;
  margin: 56px 0 20px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary);
}

h3 {
  font-size: 18px;
  margin: 40px 0 12px;
}

p {
  margin: 0 0 24px;
}

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

ul,
ol {
  padding-left: 24px;
  margin: 0 0 24px;
}

li {
  margin-bottom: 6px;
}

blockquote {
  margin: 0 0 24px;
  padding: 16px 20px;
  background: var(--color-primary-soft);
  border-left: 3px solid var(--color-primary);
  color: var(--color-text);
}

blockquote p:last-child {
  margin-bottom: 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 24px;
  font-size: 15px;
}

th,
td {
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--color-primary-soft);
  font-weight: 600;
}

/* トップの記事一覧 */
.home-intro {
  margin-bottom: 48px;
}

.article-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.article-list li {
  margin: 0 0 28px;
}

.article-list a {
  font-size: 19px;
  font-weight: 600;
  text-decoration: none;
  line-height: 1.5;
}

.article-list a:hover {
  text-decoration: underline;
}

.article-list .article-list-desc {
  margin: 6px 0 0;
  font-size: 15px;
  color: var(--color-text-muted);
}

.article-list time {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* 記事ページ */
.article-meta {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.article-lead {
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.article-header {
  margin-bottom: 48px;
}

/* CTA — 彩度の高い強調はここ1箇所のみ */
.cta {
  margin-top: 64px;
  padding: 28px 24px;
  background: var(--color-primary-soft);
  border-radius: 8px;
}

.cta-heading {
  font-weight: 700;
  font-size: 17px;
  margin-bottom: 12px;
}

.cta p:not(.cta-heading) {
  font-size: 15px;
  margin-bottom: 20px;
}

.cta-button {
  display: inline-block;
  padding: 12px 24px;
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
  border-radius: 6px;
  font-weight: 600;
  font-size: 15px;
}

.cta-button:hover {
  opacity: 0.9;
}

.back-link {
  margin-top: 48px;
}

/* フッター */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 32px 0 40px;
  background: var(--color-surface);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin-bottom: 16px;
}

.footer-nav a {
  font-size: 14px;
  color: var(--color-text-muted);
}

.copyright {
  font-size: 13px;
  color: var(--color-text-muted);
  margin: 0;
}

@media (max-width: 480px) {
  h1 {
    font-size: 24px;
  }

  h2 {
    font-size: 20px;
  }
}