/* サイト全体に適用する共通CSS */
:root {
  --color-base: #f5f5f5;
  --color-theme: #333;
  --color-accent: #0866ff;
  --container-max-width: 960px;
  --font-main: "YakuHanJP_Narrow","Zen Kaku Gothic New",'Noto Sans JP', sans-serif;
  --font-size-base: clamp(14px, 1.6vw, 18px);
  --shadow: 0 8px 24px rgba(0,0,0,0.1);
}
body {
  font-family: var(--font-main);
  background: var(--color-base);
  color: var(--color-theme);
  line-height: 2;
  font-feature-settings: "palt";
  text-align: justify;
}
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  margin-top: 8rem;
  padding: 0 20px;
}
/* header {
  padding: 20px 0 0 0;
} */
h3 {
  /* font-size: 1.8rem; */
  font-size: 26px;
  font-weight: 500;
  letter-spacing: .15em;
  padding: 10px 0 0.15em;
  /* margin-bottom: 1.5rem; */
  text-align: center;
  position: relative;
  border: none;
  /* letter-spacing: .10em; */
}
h3::before,
h3::after {
  content: '';
  display: inline-block;
  vertical-align: middle;
  width: 40px;
  height: 2px;
  background: #111;
  margin: 0 1.5rem;
}
/* セクション共通サブ見出し */
.subheading {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  font-weight: normal;
  text-align: center;
  letter-spacing: .30em;
}
/* 画像の初期設定 */
img {
  max-width: 100%;
  height: auto;
  display: block;
  vertical-align: middle;
  border-style: none;
}
@media (max-width: 768px) {
  .container {
  max-width: 90%;
  margin: 0 auto;
  margin-top: 5rem;
  padding: 0;
  }
}