:root {
  --blue:        #005AAB;
  --blue-dark:   #368AD5;
  --blue-deeper: #003F78;
  --blue-vivid:  #0A70E3;
  --blue-light:  #EBF4FC;
  --white:       #ffffff;
  --off-white:   #F9F9F8;
  --gray-100:    #D0D0D9;
  --gray-200:    #9EAAB1;
  --gray-400:    #656568;
  --gray-600:    #5F6368;
  --text:        #191A1C;
  --sans: "Gen Interface JP", Helvetica, "Hiragino Sans", "Noto Sans JP", sans-serif;
  --transition:  0.18s ease;
}

@font-face { font-family: "Gen Interface JP"; src: url("/fonts/gen-interface-jp/GenInterfaceJP-Regular.woff2") format("woff2"), local("Gen Interface JP"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Gen Interface JP-Bold"; src: url("/fonts/gen-interface-jp/GenInterfaceJP-Bold.woff2") format("woff2"), local("Gen Interface JP-Bold"); font-weight: 700; font-display: swap; }

a { text-decoration: none; color: inherit; }
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--sans); font-size: 18px; line-height: 1.8; color: var(--text); background: var(--white); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

.breadcrumb { background: transparent; border-bottom: none; padding: 0; }
.breadcrumb__inner {
  max-width: 1200px; margin: 0 auto; padding: 12px 48px;
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; color: var(--gray-600);
}
.breadcrumb a { color: var(--blue); text-decoration: underline; transition: color var(--transition); }
.breadcrumb a:hover { color: var(--blue-dark); }
.breadcrumb__sep { color: var(--gray-400); font-size: 11px; }
.breadcrumb__cur { color: var(--text); font-weight: 500; }

.page-layout { max-width: 1200px; margin: 0 auto; padding: 56px 48px; }
.page-main { min-width: 0; }
.page-main > .detail-section { margin-top: 120px; }
.page-main > :first-child { margin-top: 0 !important; }

.otoku-page-title {
  font-size: 48px; font-weight: 800; color: var(--text);
  letter-spacing: -0.02em; margin-bottom: 40px;
}

.otoku-feature { display: flex; flex-direction: column; }
.otoku-feature__media {
  position: relative; aspect-ratio: 2 / 1; width: 100%;
  display: flex; align-items: center; justify-content: center;
  background: var(--gray-100); color: var(--gray-400); font-size: 13px;
  border-radius: 16px; overflow: hidden; margin-bottom: 24px;
}
.otoku-feature__media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.otoku-feature__body { padding: 0; display: flex; flex-direction: column; gap: 16px; }
.otoku-feature__title { font-size: 24px; font-weight: 700; line-height: 1.4; color: var(--text); letter-spacing: -0.01em; }
.otoku-feature__desc { font-size: 18px; line-height: 1.8; color: var(--text); }
.otoku-cta-btn {
  display: flex; align-items: center; justify-content: center;
  width: 100%; max-width: 320px; margin: 0 auto; padding: 16px 0;
  background: var(--blue); color: #fff; font-size: 18px; font-weight: 700;
  border-radius: 100px; letter-spacing: 0.03em;
  transition: background var(--transition);
}
.otoku-cta-btn:hover { background: var(--blue-dark); }

.otoku-section-title {
  font-size: 36px; font-weight: 700; line-height: 1.4;
  color: var(--text); letter-spacing: -0.01em;
  padding-bottom: 16px; border-bottom: 2px solid var(--text); margin-bottom: 32px;
}
.otoku-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.otoku-card { display: block; border: 1px solid var(--gray-200); border-radius: 16px; overflow: hidden; transition: border-color var(--transition); }
.otoku-card:hover { border-color: var(--blue); }
.otoku-card__media {
  position: relative; aspect-ratio: 2 / 1;
  display: flex; align-items: center; justify-content: center;
  background: var(--gray-100); color: var(--gray-400); font-size: 12px;
}
.otoku-card__media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.otoku-card__body { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 24px; }
.otoku-card__title { font-size: 24px; font-weight: 700; line-height: 1.5; color: var(--text); }
.otoku-card__arrow {
  flex-shrink: 0; width: 28px; height: 28px; border-radius: 100px;
  border: 1px solid var(--blue); color: var(--blue); background: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 11px;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition);
}
.otoku-card:hover .otoku-card__arrow { background-color: var(--blue); border-color: var(--blue); color: #fff; }

@media (max-width: 768px) {
  .breadcrumb__inner { padding: 10px 20px; font-size: 10px; flex-wrap: wrap; }
  .page-layout { max-width: 100%; margin: 0; padding: 32px 20px; }
  .page-main > .detail-section { margin-top: 48px; }
  .otoku-page-title { font-size: 28px; margin-bottom: 24px; }
  .otoku-feature__media { margin-bottom: 16px; }
  .otoku-feature__title { font-size: 16px; }
  .otoku-feature__desc { font-size: 12px; }
  .otoku-cta-btn { padding: 12px 0; font-size: 16px; }
  .otoku-section-title { font-size: 24px; padding-bottom: 12px; margin-bottom: 24px; }
  .otoku-grid { grid-template-columns: 1fr; gap: 20px; }
  .otoku-card__body { padding: 16px; }
  .otoku-card__title { font-size: 16px; }
}