body {
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  background: #ffffff;
  color: #0f2b46;
  line-height: 1.8;
}

/* ヘッダー */
.k-header {
  background: #0f2b46;
  color: #ffffff;
  padding: 16px 0;
}

.k-header-inner {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
}

.k-logo {
  font-size: 22px;
  font-weight: 800;
}

.k-tagline {
  font-size: 14px;
  opacity: 0.9;
}

/* ヒーロー */
.k-hero {
  max-width: 980px;
  margin: 30px auto 10px;
  padding: 0 20px;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.3fr);
  gap: 24px;
  align-items: center;
}

.k-hero-image-wrap {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 20px rgba(0,0,0,0.08);
}

.k-hero-image {
  display: block;
  width: 100%;
  height: auto;
}

.k-hero-text h1 {
  font-size: 28px;
  margin-bottom: 12px;
}

.k-hero-text p {
  font-size: 15px;
}

/* セクション */
.k-section {
  max-width: 860px;
  margin: 30px auto;
  padding: 0 20px;
}

.k-section h2 {
  font-size: 24px;
  margin-bottom: 10px;
  border-left: 6px solid #0f2b46;
  padding-left: 10px;
}

.k-section h3 {
  font-size: 20px;
  margin-top: 22px;
  margin-bottom: 6px;
}

.k-section p {
  font-size: 15px;
  margin: 4px 0;
}

.k-section ul {
  padding-left: 20px;
  margin: 8px 0;
  font-size: 15px;
}

.k-last {
  margin-bottom: 60px;
}

/* CTA */
.k-cta {
  margin-top: 18px;
  text-align: center;
}

.k-cta a {
  display: inline-block;
  padding: 12px 26px;
  font-size: 16px;
  background: #0f2b46;
  color: #ffffff;
  border-radius: 999px;
  text-decoration: none;
}

.k-cta a:hover {
  background: #154069;
}

/* スマホレイアウト */
@media (max-width: 720px) {
  .k-hero {
    grid-template-columns: 1fr;
  }
}