/*
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", sans-serif;
  color: #333;
  background: #506e93;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
*/
.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── ヘッダー ─────────────────────────── */
.site-header {
  background: #fff;
  border-bottom: 1px solid #e8e8e8;
  padding: 48px 0 40px;
}

.site-header h1 {
  font-size: 28px;
  font-weight: 700;
  color: #222;
  margin-bottom: 8px;
}

.site-header p {
  font-size: 15px;
  color: #888;
}

/* ── メインコンテンツ ─────────────────── */
.content {
  padding: 48px 0 80px;
}

.content h2 {
  font-size: 22px;
  font-weight: 700;
  color: #222;
  margin-top: 56px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 3px solid #ee8855;
}

.content h2:first-child {
  margin-top: 0;
}

.content h3 {
  font-size: 18px;
  font-weight: 700;
  color: #444;
  margin-top: 36px;
  margin-bottom: 12px;
  padding-left: 14px;
  border-left: 4px solid #ee8855;
}

.content p {
  font-size: 15px;
  line-height: 1.9;
  margin-bottom: 16px;
  color: #555;
}

.content ul {
  margin: 0 0 16px 24px;
}

.content li {
  font-size: 15px;
  line-height: 1.9;
  color: #555;
  margin-bottom: 4px;
}

.content code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  background: #f0ece8;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
  color: #c7502a;
}

.content pre {
  background: #2d2d2d;
  color: #f0f0f0;
  padding: 16px 20px;
  border-radius: 8px;
  overflow-x: auto;
  margin-bottom: 16px;
}

.content pre code {
  background: transparent;
  color: inherit;
  padding: 0;
  font-size: 14px;
}

.content strong {
  color: #333;
}

/* ── フッター ─────────────────────────── */
.site-footer {
  border-top: 1px solid #e8e8e8;
  padding: 24px 0;
  text-align: center;
}

.site-footer p {
  font-size: 13px;
  color: #aaa;
}

/* ── レスポンシブ ─────────────────────── */
@media (max-width: 600px) {
  .site-header {
    padding: 32px 0 28px;
  }
  .site-header h1 {
    font-size: 22px;
  }
  .content h2 {
    font-size: 19px;
    margin-top: 40px;
  }
  .content h3 {
    font-size: 16px;
    margin-top: 28px;
  }
}