.page-index__hero-section { padding-top: 0; margin-top: 0; width: 100%; overflow: hidden; background: linear-gradient(135deg, #E3F2FD 0%, #FFFFFF 100%); }
.page-index__hero-container { width: 100%; max-width: 100%; }
.page-index__hero-link { display: block; width: 100%; text-decoration: none; }
.page-index__hero-image { width: 100%; height: auto; display: block; object-fit: cover; aspect-ratio: 17 / 5; }

.page-index__logo-grid-section { max-width: 1200px; margin: 16px auto 28px; padding: 0 16px; box-sizing: border-box; }
.page-index__logo-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px 16px; justify-items: center; }
.page-index__logo-item { display: flex; flex-direction: column; align-items: center; gap: 12px; width: 100%; max-width: 280px; text-align: center; background-color: #FFFFFF; border: 1px solid #E0E0E0; border-radius: 12px; padding: 16px; box-sizing: border-box; transition: transform 0.2s ease-in-out; }
.page-index__logo-item:hover { transform: translateY(-4px); }
.page-index__logo-image { width: 100%; height: auto; aspect-ratio: 2 / 1; object-fit: contain; display: block; }
.page-index__logo-cta { display: inline-block; padding: 10px 22px; border-radius: 999px; background: #0477db; color: #ffffff; font-weight: 700; text-decoration: none; font-size: 1rem; box-shadow: 0 4px 14px rgba(4, 119, 219, 0.35); border: none; cursor: pointer; transition: background-color 0.2s ease, box-shadow 0.2s ease; }
.page-index__logo-cta:hover { background: #26A9E0; box-shadow: 0 6px 18px rgba(4, 119, 219, 0.45); }
.page-index__logo-item:nth-child(5) { grid-column: 2; }
.page-index__logo-item:nth-child(6) { grid-column: 3; }

.page-index__guide-section { background-color: #FFFFFF; }
.page-index__guide-inner { max-width: 1000px; margin: 0 auto; padding: 16px 16px 48px; color: #333333; }
.page-index__guide-title { text-align: center; color: #0477db; margin: 12px 0 20px; font-size: 1.75rem; font-weight: 700; }
.page-index__guide-intro { font-size: 1.05rem; line-height: 1.7; margin-bottom: 24px; text-align: justify; }
.page-index__guide-inner h2 { color: #0477db; font-size: 1.5rem; margin-top: 32px; margin-bottom: 16px; border-bottom: 2px solid #26A9E0; padding-bottom: 8px; }
.page-index__guide-inner h3 { color: #333333; font-size: 1.2rem; margin-top: 20px; margin-bottom: 8px; }
.page-index__guide-inner p { line-height: 1.8; margin-bottom: 16px; text-align: justify; }
.page-index__guide-inner ul, .page-index__guide-inner ol { line-height: 1.8; margin-left: 20px; margin-bottom: 16px; }
.page-index__guide-inner li { margin-bottom: 8px; }
.page-index__guide-inner a { color: #0477db; }
.page-index__guide-figure { margin: 24px auto; text-align: center; max-width: 800px; }
.page-index__guide-figure img { width: 100%; height: auto; aspect-ratio: 2 / 1; object-fit: cover; display: block; border-radius: 8px; }
.page-index__guide-figure figcaption { font-size: 0.9rem; color: #666666; margin-top: 8px; font-style: italic; }
.page-index__guide-inner blockquote { border-left: 4px solid #26A9E0; margin: 24px 0; padding: 12px 20px; background-color: #F8F9FA; font-style: italic; color: #555555; }

.page-index__guide-inner details { background-color: #F8F9FA; border: 1px solid #E0E0E0; border-radius: 8px; padding: 12px 16px; margin-bottom: 12px; }
.page-index__guide-inner summary { cursor: pointer; font-weight: 600; color: #0477db; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.page-index__guide-inner summary:hover { color: #26A9E0; }
.page-index__guide-inner summary::after { content: '+'; font-size: 1.5rem; font-weight: bold; margin-left: 12px; }
.page-index__guide-inner details[open] summary::after { content: '−'; }

@media (max-width: 768px) {
  .page-index__hero-image { aspect-ratio: 2 / 1; }
  .page-index__logo-grid-section { padding: 0 12px; }
  .page-index__logo-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .page-index__logo-item { padding: 12px; max-width: 100%; }
  .page-index__logo-item:nth-child(5), .page-index__logo-item:nth-child(6) { grid-column: auto; }
  .page-index__logo-cta { max-width: 100%; box-sizing: border-box; white-space: normal; word-wrap: break-word; }
  .page-index__guide-title { font-size: 1.35rem; }
  .page-index__guide-inner { padding: 8px 12px 32px; }
  .page-index__guide-figure { max-width: 100%; }
  .page-index__guide-figure img { max-width: 100%; height: auto; }
  .page-index__guide-inner img { max-width: 100%; height: auto; }
  .page-index__guide-inner { max-width: 100%; overflow-x: hidden; box-sizing: border-box; }
  .page-index { max-width: 100%; overflow-x: hidden; box-sizing: border-box; }
  .page-index button, .page-index a { max-width: 100%; box-sizing: border-box; white-space: normal; word-wrap: break-word; }
  .page-index__logo-grid-section, .page-index__guide-section { overflow: hidden; }
}