/* ===== ヘッダー ===== */
.site-header {
  background: #ffffff;
  border-bottom: 1px solid #ddd;
  padding: 10px 20px;
}

.header-inner {
  max-width: 1000px;
  margin: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo a {
  text-decoration: none;
  color: #333;
  font-size: 20px;
  font-weight: bold;
}

.nav a {
  margin-left: 20px;
  text-decoration: none;
  color: #007bff;
}

.nav a:hover {
  text-decoration: underline;
}

/* ===== フッター ===== */
.site-footer {
  margin-top: 60px;
  padding: 20px;
  background: #f5f5f5;
  font-size: 14px;
}

.footer-inner {
  max-width: 800px;
  margin: auto;
}

.footer-title {
  font-weight: bold;
}

.footer-desc {
  margin-top: 10px;
  line-height: 1.6;
}

.footer-contact {
  margin-top: 10px;
}

.footer-links {
  margin-top: 10px;
}

.footer-links a {
  text-decoration: none;
  color: #007bff;
}

.footer-links a:hover {
  text-decoration: underline;
}

.footer-copy {
  margin-top: 10px;
  color: #777;
  font-size: 12px;
}

/* ===== ヒーロー ===== */
.hero {
  text-align: center;
  padding: 60px 20px;
}

.hero h1 {
  font-size: 32px;
}

.hero p {
  margin: 20px 0;
}

/* ボタン */
.btn-primary {
  display: inline-block;
  padding: 12px 20px;
  background: #007bff;
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
}

.btn-primary:hover {
  opacity: 0.9;
}

/* ===== 特徴 ===== */
.features {
  padding: 40px 20px;
}

.feature-list {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.feature-item {
  flex: 1;
  min-width: 250px;
}

/* ===== CTA ===== */
.cta {
  text-align: center;
  padding: 40px 20px;
  background: #f5f5f5;
}

/* ===== 記事 ===== */
.articles {
  padding: 40px 20px;
}

.articles article {
  margin-bottom: 20px;
}

/* ===== その他 ===== */
.container {
  max-width: 800px;
  margin: auto;
  padding: 20px;
}

.container h1 {
  margin-bottom: 20px;
}

.container h2 {
  margin-top: 30px;
}

.container ul {
  margin-top: 10px;
  padding-left: 20px;
}