.page-index {
  color: #F3F8FF;
  background-color: #0a1530;
}

/* ===== HERO ===== */
.page-index__hero-section,
.page-index__logo-grid-section,
.page-index__guide-section {
  width: 100%;
  box-sizing: border-box;
}
.page-index__hero-section {
  padding-top: 0;
  margin-top: 0;
  overflow: hidden;
}
.page-index__hero-image {
  width: 100%;
  height: auto;
  aspect-ratio: 17 / 5;
  object-fit: cover;
  display: block;
}

/* ===== LOGO GRID ===== */
.page-index__logo-grid-section {
  max-width: 1200px;
  margin: 24px auto 32px;
  padding: 0 16px;
  box-sizing: border-box;
}
.page-index__logo-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px 16px;
  justify-items: center;
  padding: 24px 0;
}
.page-index__logo-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  width: 100%;
  max-width: 280px;
  text-align: center;
  background: #10233F;
  padding: 16px 12px;
  border-radius: 12px;
  border: 1px solid #244D84;
  box-sizing: border-box;
}
.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: 12px 28px;
  border-radius: 999px;
  background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
  color: #ffffff;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(79, 168, 255, 0.4);
  border: 1px solid #244D84;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.page-index__logo-cta:hover {
  transform: scale(1.02);
  box-shadow: 0 6px 20px rgba(79, 168, 255, 0.6);
}
.page-index__logo-item:nth-child(5) {
  grid-column: 2;
}
.page-index__logo-item:nth-child(6) {
  grid-column: 3;
}

/* ===== GUIDE ===== */
.page-index__guide-section {
  background-color: #08162B;
  border-top: 1px solid #1B3357;
}
.page-index__guide-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 28px 16px 56px;
}
.page-index__guide-title {
  text-align: center;
  color: #F2C14E;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 0.02em;
  max-width: 800px;
  margin: 12px auto 20px;
  font-size: clamp(1.4rem, 2.5vw, 2rem);
}
.page-index__guide-section h2 {
  color: #F3F8FF;
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1.4;
  margin: 32px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid #1B3357;
}
.page-index__guide-section h3 {
  color: #F3F8FF;
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.4;
  margin: 24px 0 10px;
}
.page-index__guide-section p {
  color: #AFC4E8;
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 16px;
}
.page-index__guide-section ul,
.page-index__guide-section ol {
  color: #AFC4E8;
  line-height: 1.8;
  padding-left: 24px;
  margin-bottom: 20px;
}
.page-index__guide-section li {
  margin-bottom: 8px;
}
.page-index__guide-section a {
  color: #F2C14E;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-index__guide-figure {
  margin: 28px 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;
  border: 1px solid #244D84;
}
.page-index__guide-figure figcaption {
  font-size: 0.9rem;
  color: #AFC4E8;
  margin-top: 10px;
  font-style: italic;
}

/* ===== MOBILE ===== */
@media (max-width: 900px) {
  .page-index__logo-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-index__logo-item:nth-child(5),
  .page-index__logo-item:nth-child(6) {
    grid-column: auto;
  }
}

@media (max-width: 768px) {
  .page-index {
    max-width: 100%;
    overflow-x: hidden;
  }
  .page-index__hero-image {
    aspect-ratio: 2 / 1;
  }
  .page-index__logo-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    padding: 12px 0;
  }
  .page-index__logo-item {
    max-width: 100%;
    padding: 12px 8px;
  }
  .page-index__logo-cta {
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
    font-size: 0.9rem;
    padding: 10px 16px;
    width: 100%;
  }
  .page-index__logo-item:nth-child(5),
  .page-index__logo-item:nth-child(6) {
    grid-column: auto;
  }
  .page-index__guide-title {
    font-size: 1.35rem;
  }
  .page-index__guide-section h2 {
    font-size: 1.35rem;
  }
  .page-index__guide-section h3 {
    font-size: 1.15rem;
  }
  .page-index__guide-section p,
  .page-index__guide-section li {
    font-size: 0.95rem;
    line-height: 1.6;
  }
  .page-index img {
    max-width: 100% !important;
    height: auto !important;
  }
  .page-index__guide-figure img {
    max-width: 100%;
  }
}