: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; }

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
a { text-decoration: none; color: inherit; }
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: 0; }
.page-h1 {
  font-size: 48px; font-weight: 800; color: var(--text);
  letter-spacing: -0.02em; margin-bottom: 40px;
}

.detail-section { margin-bottom: 48px; }
.page-intro {
  font-size: 18px; color: var(--text); line-height: 1.85;
  padding-bottom: 0; border-bottom: none; margin-bottom: 24px;
}

.pdf-download-list {
  display: flex; flex-direction: row; flex-wrap: wrap; align-items: flex-start; gap: 12px;
}
.pdf-download-btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--blue); color: #fff; font-size: 18px; font-weight: 700;
  padding: 12px 24px; border-radius: 100px; text-decoration: none;
  transition: background var(--transition);
}
.pdf-download-btn:hover { background: var(--blue-deeper); }

.pdf-image-list { display: flex; flex-direction: column; gap: 16px; margin-top: 24px; }
.pdf-image-list__img { display: block; width: 100%; height: auto; border: 1px solid var(--gray-100); border-radius: 8px; }

@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-h1 { font-size: 28px; }
  .page-intro { font-size: 12px; }
  .pdf-download-btn { font-size: 16px; }
}