/* Work Handler 取扱説明書（人間向け）共通スタイル */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
  line-height: 1.9;
  color: #333;
  background-color: #f8f9fa;
}

a {
  color: #2563eb;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* ヘッダー */
.header {
  background: linear-gradient(135deg, #333 0%, #555 100%);
  color: #fff;
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.header-content {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.header-title {
  font-size: 1.1rem;
  font-weight: bold;
}
.header a {
  color: #fff;
}
.header-nav {
  display: flex;
  gap: 1.2rem;
}
.header-nav a {
  font-size: 0.9rem;
  opacity: 0.9;
}

/* 本文コンテナ */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 2.5rem 2rem 4rem;
}

/* パンくず */
.breadcrumb {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 1.5rem;
}

h1 {
  font-size: 1.8rem;
  color: #222;
  margin-bottom: 0.5rem;
  padding-bottom: 0.8rem;
  border-bottom: 3px solid #333;
}

.lead {
  color: #555;
  margin: 1rem 0 2rem;
}

h2 {
  font-size: 1.3rem;
  color: #333;
  margin: 2.2rem 0 0.9rem;
  padding-left: 0.7rem;
  border-left: 5px solid #555;
}

h3 {
  font-size: 1.08rem;
  color: #444;
  margin: 1.6rem 0 0.6rem;
}

p {
  margin: 0.6rem 0;
}

ul,
ol {
  margin: 0.6rem 0 1rem 1.6rem;
}
li {
  margin: 0.35rem 0;
}
li > ul {
  margin-top: 0.35rem;
}

/* 補足ボックス */
.note {
  background: #eef2ff;
  border-left: 4px solid #6366f1;
  padding: 0.8rem 1rem;
  border-radius: 4px;
  margin: 1.2rem 0;
  font-size: 0.95rem;
}

/* 目次ページのカード */
.section-group {
  margin: 2rem 0;
}
.card-list {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.8rem;
}
.card {
  display: block;
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  padding: 1rem 1.2rem;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
  transition:
    box-shadow 0.15s,
    border-color 0.15s;
}
.card:hover {
  text-decoration: none;
  border-color: #c7d2fe;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.08);
}
.card-title {
  font-weight: bold;
  color: #222;
  font-size: 1.05rem;
}
.card-desc {
  color: #666;
  font-size: 0.9rem;
  margin-top: 0.3rem;
}

/* ページ下部のナビ */
.page-footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid #e5e7eb;
  font-size: 0.95rem;
}

footer.site-footer {
  text-align: center;
  color: #999;
  font-size: 0.85rem;
  padding: 2rem;
}

@media (max-width: 600px) {
  .header {
    padding: 0.8rem 1rem;
  }
  .container {
    padding: 1.8rem 1.1rem 3rem;
  }
  h1 {
    font-size: 1.5rem;
  }
}