/* 全体背景・文字色 */
body {
  background: #f8fafc;
  color: #333;
  font-family: "Noto Sans JP", sans-serif;
}

/* ヘッダー */
.sub-header {
  background: #002244;
  padding: 1rem 0;
}
.sub-header .site-logo img {
  height: 40px;
}
.sub-navigation a {
  color: #ffffff;
  margin-right: 1rem;
}

/* ヒーロー */
.sub-hero {
  background: #0099cc;
  color: #fff;
  text-align: center;
  padding: 4rem 1rem;
}

/* 記事一覧 */
.web-post-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  list-style: none;
  padding: 0;
}
.web-post-list li {
  background: #ffffff;
  padding: 1rem;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}
.web-post-list li h3 {
  margin: 0.5rem 0;
}

/* 記事ページ */
.sub-article {
  max-width: 720px;
  margin: 2rem auto;
  padding: 1rem;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}
.sub-article h1 {
  color: #002244;
  margin-bottom: 1rem;
}
.sub-article .entry-content p {
  line-height: 1.8;
}
.sub-navigation {
  text-align: right;
}
.sub-navigation .sub-menu-list li {
  display: inline-block;
  margin-left: 1rem;
}
.sub-navigation .sub-menu-list li a {
  color: #ffffff;
  text-decoration: none;
}
.sub-navigation .sub-menu-list li a:hover {
  color: #00cfff;
}
.sub-hero {
  text-align: center;
  padding: 4rem 1rem;
  background-color: #0099cc;
  color: #fff;
}

.sub-hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.sub-hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

.sub-hero .wp-block-button .wp-block-button__link {
  background-color: #fff;
  color: #0099cc;
  padding: 0.8rem 2rem;
  border-radius: 4px;
  text-decoration: none;
}

.sub-hero .wp-block-button .wp-block-button__link:hover {
  background-color: #00cfff;
  color: #fff;
}
.web-post-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  list-style: none;
  padding: 0;
}

.web-post-list li {
  background: #ffffff;
  padding: 1rem;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}