:root {
  --color-main: #2f78aa;
  --color-main-dark: #205c86;
  --color-main-soft: #eaf4fb;
  --color-sub: #1f3447;
  --color-text: #2f3941;
  --color-text-light: #667680;
  --color-line: #06c755;
  --color-border: rgba(47, 120, 170, 0.18);
  --color-card: #ffffff;
  --shadow-soft: 0 8px 24px rgba(24, 47, 66, 0.06);
  --shadow-strong: 0 14px 32px rgba(24, 47, 66, 0.08);
  --radius-lg: 24px;
  --radius-md: 16px;
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  color: var(--color-text);
  background:
    radial-gradient(circle at top left, rgba(47, 120, 170, 0.08), transparent 26%),
    linear-gradient(to bottom, #fcfdff 0%, #ffffff 42%);
  line-height: 1.78;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(92%, var(--max-width));
  margin: 0 auto;
}

.section {
  padding: 74px 0;
}

.section-soft {
  background: linear-gradient(180deg, rgba(47, 120, 170, 0.04) 0%, rgba(255, 255, 255, 0.98) 100%);
}

.section-title {
  margin: 0 0 12px;
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  line-height: 1.35;
  text-align: center;
  color: var(--color-sub);
  letter-spacing: 0.02em;
}

.section-lead {
  max-width: 760px;
  margin: 0 auto 34px;
  text-align: center;
  color: var(--color-text-light);
  font-size: 0.98rem;
}

.marker {
  background: linear-gradient(transparent 60%, rgba(47, 120, 170, 0.18) 60%);
  font-weight: 700;
}

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(47, 120, 170, 0.1);
}

.header-inner {
  width: min(95%, var(--max-width));
  margin: 0 auto;
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.logo-mark {
  width: 52px;
  height: 52px;
  object-fit: contain;
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-main {
  font-size: 1.14rem;
  font-weight: 800;
  color: var(--color-sub);
}

.logo-sub {
  font-size: 0.82rem;
  color: var(--color-text-light);
}

.nav {
  display: flex;
  gap: 18px;
  align-items: center;
}

.nav a {
  font-size: 0.92rem;
  color: var(--color-text);
  transition: color 0.2s ease;
}

.nav a:hover {
  color: var(--color-main-dark);
}

.header-line-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-line);
  color: #fff;
  padding: 11px 16px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.92rem;
  box-shadow: 0 10px 20px rgba(6, 199, 85, 0.16);
}

.menu-toggle {
  display: none;
  border: none;
  background: transparent;
  font-size: 1.6rem;
  cursor: pointer;
  color: var(--color-sub);
}

/* hero */
.hero {
  padding: 62px 0 54px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 28px;
  align-items: center;
}

.hero-text {
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(47, 120, 170, 0.12);
  border-radius: 28px;
  padding: 34px;
  box-shadow: var(--shadow-soft);
}

.hero-kicker {
  display: inline-block;
  background: rgba(47, 120, 170, 0.08);
  color: var(--color-main-dark);
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.hero-title {
  margin: 0 0 16px;
  font-size: clamp(2rem, 4vw, 3.25rem);
  line-height: 1.28;
  color: var(--color-sub);
  letter-spacing: 0.01em;
}

.hero-desc {
  margin: 0 0 22px;
  color: var(--color-text-light);
  font-size: 0.97rem;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.hero-point {
  padding: 8px 12px;
  background: #f7fbfe;
  border: 1px solid rgba(47, 120, 170, 0.14);
  border-radius: 999px;
  font-size: 0.87rem;
  color: var(--color-sub);
  font-weight: 700;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 700;
  transition: 0.2s ease;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--color-line);
  color: #fff;
  box-shadow: 0 10px 22px rgba(6, 199, 85, 0.15);
}

.btn-secondary {
  background: #fff;
  color: var(--color-sub);
  border-color: rgba(47, 120, 170, 0.16);
}

.btn-primary:hover,
.btn-secondary:hover {
  transform: translateY(-1px);
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-photo-card {
  width: 100%;
  max-width: 390px;
  background: #fff;
  border: 1px solid rgba(47, 120, 170, 0.12);
  border-radius: 28px;
  padding: 14px;
  box-shadow: var(--shadow-soft);
}

.hero-photo {
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  border-radius: 20px;
}

.hero-photo-caption {
  margin: 12px 4px 2px;
  text-align: center;
  color: var(--color-text-light);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* generic */
.cards-3,
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.card,
.blog-card,
.faq-box,
.cta-box,
.access-box,
.profile-photo-panel,
.profile-info-panel,
.profile-message-box,
.staff-card {
  background: #fff;
  border: 1px solid rgba(47, 120, 170, 0.12);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.card {
  padding: 22px;
}

.feature-card,
.blog-card,
.staff-card,
.voice-card {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover,
.blog-card:hover,
.staff-card:hover,
.voice-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-strong);
}

.card-image {
  width: 100%;
  height: 160px;
  object-fit: contain;
  background: #fbfdff;
  border-radius: 16px;
  margin-bottom: 14px;
  padding: 12px;
}

.card-image.photo-fit {
  object-fit: cover;
  padding: 0;
}

.card h3 {
  margin: 0 0 10px;
  color: var(--color-sub);
  font-size: 1.08rem;
  line-height: 1.45;
}

.card p {
  margin: 0;
  color: var(--color-text-light);
  font-size: 0.94rem;
}

/* policy */
.policy-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.policy-note-box {
  margin-top: 18px;
  background: #fff;
  border: 1px solid rgba(47, 120, 170, 0.12);
  border-radius: 20px;
  padding: 18px 20px;
  box-shadow: var(--shadow-soft);
  text-align: center;
}

.policy-note-box p {
  margin: 0;
  color: var(--color-sub);
  font-weight: 700;
  line-height: 1.8;
}

/* price */
.price-card {
  text-align: center;
}

.price-card-main {
  border-color: rgba(32, 92, 134, 0.24);
}

.price-value {
  margin: 6px 0 12px;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-main-dark);
}

.price-note {
  margin: 18px auto 0;
  max-width: 720px;
  text-align: center;
  color: var(--color-text-light);
  font-size: 0.92rem;
}

/* gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 14px;
}

.gallery-large,
.gallery-small {
  margin: 0;
  overflow: hidden;
  border-radius: 22px;
  border: 1px solid rgba(47, 120, 170, 0.12);
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.gallery-large img,
.gallery-small img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.gallery-large {
  grid-row: span 2;
  min-height: 420px;
}

.gallery-small {
  min-height: 202px;
}

/* profile */
.profile-section {
  background: linear-gradient(180deg, rgba(47, 120, 170, 0.03) 0%, rgba(255, 255, 255, 0.98) 100%);
}

.profile-eyebrow {
  margin: 0 0 6px;
  text-align: center;
  color: var(--color-main-dark);
  font-weight: 700;
  font-size: 0.94rem;
  letter-spacing: 0.06em;
}

.profile-main-title {
  margin: 0;
  text-align: center;
  font-size: clamp(1.9rem, 4vw, 3rem);
  line-height: 1.34;
  color: var(--color-sub);
  letter-spacing: 0.02em;
}

.profile-main-lead {
  margin: 14px auto 30px;
  max-width: 760px;
  text-align: center;
  color: var(--color-text-light);
  font-size: 0.98rem;
}

.profile-highlight-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 18px;
  align-items: start;
}

.profile-photo-panel {
  padding: 14px;
}

.profile-photo-frame {
  overflow: hidden;
  border-radius: 16px;
  background: #fff;
}

.profile-real-photo {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  transition: transform 0.25s ease;
}

.profile-photo-frame:hover .profile-real-photo {
  transform: scale(1.02);
}

.profile-photo-caption-box {
  margin-top: 10px;
  padding: 12px 12px 10px;
  background: #fafcff;
  border: 1px solid rgba(47, 120, 170, 0.1);
  border-radius: 14px;
}

.profile-photo-caption {
  margin: 0;
  text-align: left;
  font-size: 0.9rem;
  line-height: 1.7;
  color: #4f5f69;
}

.profile-info-panel {
  padding: 22px 22px 18px;
}

.profile-panel-title {
  margin: 0 0 16px;
  text-align: center;
  color: var(--color-sub);
  font-size: 1.45rem;
  line-height: 1.35;
}

.profile-chip {
  display: inline-block;
  margin: 0 auto 16px;
  padding: 8px 12px;
  border-radius: 10px;
  background: rgba(47, 120, 170, 0.08);
  color: var(--color-main-dark);
  font-weight: 700;
  text-align: center;
  font-size: 0.9rem;
}

.profile-check-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.profile-check-list li {
  position: relative;
  padding: 11px 0 11px 38px;
  border-bottom: 1px dashed rgba(47, 120, 170, 0.18);
  color: var(--color-text);
  font-weight: 600;
  font-size: 0.94rem;
  line-height: 1.6;
}

.profile-check-list li:last-child {
  border-bottom: none;
}

.profile-check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 11px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-main-dark);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
}

.profile-message-box {
  margin-top: 18px;
  padding: 20px 22px;
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 18px;
  align-items: center;
}

.profile-message-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: #f4f9fc;
  color: var(--color-main-dark);
  font-size: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.profile-message-content h3 {
  margin: 0 0 8px;
  color: var(--color-main-dark);
  font-size: 1.35rem;
  line-height: 1.35;
}

.profile-message-content p {
  margin: 0;
  color: var(--color-text);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* voice */
.voice-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.voice-card {
  background: #fff;
  border: 1px solid rgba(47, 120, 170, 0.12);
  border-radius: 20px;
  padding: 14px;
  box-shadow: 0 8px 20px rgba(24, 47, 66, 0.05);
}

.voice-card h3 {
  margin: 0 0 6px;
  font-size: 0.95rem;
  line-height: 1.45;
  color: var(--color-sub);
}

.voice-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

/* staff */
.staff-card {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 20px;
  padding: 22px;
}

.staff-image-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fbfdff;
  border-radius: 16px;
  padding: 14px;
}

.staff-image {
  max-width: 145px;
  width: 100%;
  object-fit: contain;
}

.staff-body h3 {
  margin: 0 0 6px;
  color: var(--color-sub);
  font-size: 1.24rem;
}

.staff-meta {
  margin: 0 0 12px;
  color: var(--color-main-dark);
  font-weight: 700;
  font-size: 0.94rem;
}

.staff-text {
  margin: 0 0 10px;
  color: var(--color-text-light);
  font-size: 0.94rem;
}

.staff-text:last-child {
  margin-bottom: 0;
}

/* blog */
.blog-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.blog-card {
  overflow: hidden;
}

.blog-thumb {
  height: 180px;
  background: #fbfdff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.blog-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-thumb-illustration {
  padding: 14px;
}

.blog-thumb-illustration img {
  object-fit: contain;
}

.blog-body {
  padding: 18px;
}

.blog-title {
  margin: 0 0 8px;
  font-size: 1rem;
  color: var(--color-sub);
  line-height: 1.55;
}

.blog-excerpt {
  margin: 0;
  color: var(--color-text-light);
  font-size: 0.92rem;
}

.blog-more {
  margin-top: 20px;
  text-align: center;
}

/* access */
.access-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
  align-items: stretch;
}

.access-photo-wrap {
  overflow: hidden;
  border-radius: 22px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(47, 120, 170, 0.12);
  background: #fff;
}

.access-photo {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.access-caption {
  margin: 0;
  padding: 14px 16px 16px;
  color: var(--color-text-light);
  font-size: 0.92rem;
  line-height: 1.7;
}

.access-box {
  padding: 24px;
}

.access-box h3 {
  margin-top: 0;
  color: var(--color-sub);
}

.access-note {
  color: var(--color-text-light);
  font-size: 0.9rem;
}

/* faq */
.faq-box,
.cta-box {
  padding: 24px;
  background: #fff;
  border: 1px solid rgba(47, 120, 170, 0.12);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.faq-item + .faq-item {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed rgba(47, 120, 170, 0.18);
}

.faq-q {
  margin: 0 0 6px;
  color: var(--color-sub);
  font-weight: 700;
}

.faq-a {
  margin: 0;
  color: var(--color-text-light);
  font-size: 0.94rem;
}

/* cta */
.cta {
  padding-bottom: 86px;
}

.cta-box {
  text-align: center;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbfd 100%);
}

.cta-title {
  margin: 0 0 10px;
  color: var(--color-sub);
  font-size: clamp(1.55rem, 3vw, 2.2rem);
  line-height: 1.45;
}

.cta-text {
  margin: 0 auto 20px;
  max-width: 660px;
  color: var(--color-text-light);
  font-size: 0.95rem;
}

/* footer */
.site-footer {
  padding: 28px 0;
  border-top: 1px solid rgba(47, 120, 170, 0.12);
  background: rgba(255, 255, 255, 0.98);
}

.footer-inner {
  width: min(92%, var(--max-width));
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  color: var(--color-text-light);
  font-size: 0.9rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-logo {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.footer-links a {
  color: var(--color-text-light);
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--color-main-dark);
}

@media (max-width: 900px) {
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-links {
    gap: 10px 14px;
  }
}

/* responsive */
@media (max-width: 900px) {
  .hero-inner,
  .cards-3,
  .policy-wrap,
  .price-grid,
  .gallery-grid,
  .access-grid,
  .profile-highlight-grid,
  .staff-card,
  .blog-list,
  .voice-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 54px 0;
  }

  .hero {
    padding-top: 34px;
    padding-bottom: 38px;
  }

  .hero-text,
  .card,
  .faq-box,
  .cta-box,
  .access-box,
  .profile-info-panel,
  .profile-message-box,
  .staff-card {
    padding: 18px;
  }

  .hero-photo-card {
    max-width: 85%;
    margin: 0 auto;
    padding: 12px;
  }

  .gallery-large,
  .gallery-small {
    min-height: auto;
  }

  .gallery-large img,
  .gallery-small img {
    aspect-ratio: 4 / 3;
  }

  .profile-message-box {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .profile-message-icon {
    margin: 0 auto;
  }

  .profile-message-content h3 {
    font-size: 1.18rem;
  }

  .nav {
    display: none;
    position: absolute;
    top: 74px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    padding: 16px 5%;
    border-bottom: 1px solid rgba(47, 120, 170, 0.12);
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .nav.open {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .header-line-btn.desktop-only {
    display: none;
  }

  .hero-title {
    font-size: clamp(1.85rem, 8vw, 2.4rem);
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .profile-main-title {
    font-size: clamp(1.6rem, 7vw, 2.2rem);
  }

  .profile-photo-caption {
    font-size: 0.88rem;
    line-height: 1.65;
  }

  .hero-point {
    font-size: 0.84rem;
  }

  .section-lead {
    font-size: 0.95rem;
    margin-bottom: 26px;
  }

  .access-caption {
    font-size: 0.9rem;
    padding: 12px 14px 14px;
  }

  .voice-card {
    padding: 12px;
  }

  .voice-card h3 {
    font-size: 0.9rem;
  }

  .voice-card p {
    font-size: 0.85rem;
    line-height: 1.45;
  }

  .hero-photo-caption {
    font-size: 0.85rem;
  }
}

/* =========================
   blog article
   ========================= */

.blog-page {
  padding: 54px 0 88px;
}

.blog-article-wrap {
  width: min(92%, 860px);
  margin: 0 auto;
}

.blog-article-header {
  margin-bottom: 24px;
  text-align: center;
}

.blog-article-label {
  display: inline-block;
  margin-bottom: 12px;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(47, 120, 170, 0.08);
  color: var(--color-main-dark);
  font-size: 0.85rem;
  font-weight: 700;
}

.blog-article-title {
  margin: 0 0 14px;
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1.4;
  color: var(--color-sub);
  letter-spacing: 0.02em;
}

.blog-article-meta {
  color: var(--color-text-light);
  font-size: 0.92rem;
}

.blog-article-card {
  background: #fff;
  border: 1px solid rgba(47, 120, 170, 0.12);
  border-radius: 28px;
  box-shadow: var(--shadow-soft);
  padding: 34px 32px;
}

.blog-article-image {
  margin: 0 0 24px;
  overflow: hidden;
  border-radius: 22px;
  border: 1px solid rgba(47, 120, 170, 0.1);
  background: #fff;
  text-align: center;
}

.blog-article-image img {
  width: 100%;
  height: auto;
  max-height: 560px;
  display: block;
  margin: 0 auto;
  object-fit: contain;
}

.blog-article-image figcaption {
  padding: 10px 14px 12px;
  font-size: 0.88rem;
  color: var(--color-text-light);
  text-align: center;
  background: #fbfdff;
}

.blog-article-body {
  color: var(--color-text);
  font-size: 1rem;
  line-height: 1.95;
}

.blog-article-body p {
  margin: 0 0 1.35em;
}

.blog-article-body strong {
  color: var(--color-sub);
  font-weight: 700;
}

.blog-article-body h2 {
  margin: 42px 0 16px;
  padding-left: 14px;
  border-left: 5px solid var(--color-main);
  font-size: 1.45rem;
  line-height: 1.5;
  color: var(--color-sub);
}

.blog-article-body ul {
  margin: 0 0 1.5em 1.2em;
  padding: 0;
}

.blog-article-body li {
  margin-bottom: 0.6em;
  color: var(--color-text);
}

.blog-article-body blockquote {
  margin: 28px 0;
  padding: 18px 20px;
  background: linear-gradient(180deg, #fbfdff 0%, #f4f9fc 100%);
  border-left: 4px solid var(--color-main);
  border-radius: 16px;
  color: var(--color-sub);
}

.blog-article-note {
  margin: 28px 0;
  padding: 18px 20px;
  background: var(--color-main-soft);
  border: 1px solid rgba(47, 120, 170, 0.12);
  border-radius: 18px;
}

.blog-article-note p {
  margin: 0;
  color: var(--color-sub);
  font-weight: 700;
}

.blog-article-cta {
  margin-top: 28px;
  padding: 24px 22px;
  text-align: center;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbfd 100%);
  border: 1px solid rgba(47, 120, 170, 0.12);
  border-radius: 22px;
}

.blog-article-cta h3 {
  margin: 0 0 10px;
  color: var(--color-sub);
  font-size: 1.25rem;
}

.blog-article-cta p {
  margin: 0 0 16px;
  color: var(--color-text-light);
  font-size: 0.95rem;
}

.blog-back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  color: var(--color-main-dark);
  font-weight: 700;
  font-size: 0.94rem;
}

.blog-back-link:hover {
  text-decoration: underline;
}

/* responsive */
@media (max-width: 900px) {
  .blog-page {
    padding: 34px 0 64px;
  }

  .blog-article-card {
    padding: 22px 18px;
    border-radius: 22px;
  }

  .blog-article-title {
    font-size: clamp(1.7rem, 7vw, 2.2rem);
  }

  .blog-article-body {
    font-size: 0.97rem;
    line-height: 1.9;
  }

  .blog-article-body h2 {
    margin-top: 34px;
    font-size: 1.24rem;
  }
}

/* =========================
   blog card hover improve
   ========================= */

.blog-card > a {
  display: block;
  height: 100%;
  color: inherit;
}

.blog-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 34px rgba(24, 47, 66, 0.1);
}

.blog-card:hover .blog-title {
  color: var(--color-main-dark);
}

.blog-card:hover .blog-thumb img {
  transform: scale(1.03);
}

.blog-thumb {
  overflow: hidden;
}

.blog-thumb img {
  transition: transform 0.25s ease;
}

.blog-title {
  transition: color 0.2s ease;
}

/* =========================
   blog archive page
   ========================= */

.blog-archive-wrap {
  width: min(92%, var(--max-width));
  margin: 0 auto;
}

.blog-archive-header {
  text-align: center;
  margin-bottom: 30px;
}

.blog-archive-eyebrow {
  margin: 0 0 8px;
  color: var(--color-main-dark);
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.06em;
}

.blog-archive-title {
  margin: 0 0 12px;
  font-size: clamp(2rem, 4vw, 2.9rem);
  line-height: 1.35;
  color: var(--color-sub);
}

.blog-archive-lead {
  max-width: 760px;
  margin: 0 auto;
  color: var(--color-text-light);
  font-size: 0.98rem;
  line-height: 1.8;
}

.blog-archive-bottom {
  margin-top: 28px;
  text-align: center;
}

.blog-article-body a {
  color: #2f78aa;
  text-decoration: underline;
  font-weight: 700;
  background: linear-gradient(transparent 60%, rgba(47,120,170,0.2) 60%);
}

.internal-link-box {
  margin: 16px 0;
  padding: 12px 16px;
  background-color: #f5f8fb;
  border-left: 4px solid #2f78aa;
  font-size: 0.95em;
}

.internal-link-box a {
  color: #2f78aa;
  font-weight: 600;
  text-decoration: none;
}

.internal-link-box a:hover {
  text-decoration: underline;
}

.internal-link-box {
  margin: 16px auto;
  padding: 12px 16px;
  background-color: #f5f8fb;
  border-left: 4px solid #2f78aa;
  font-size: 0.95em;
  max-width: 600px;
}

.internal-link-box p {
  margin: 0;
  line-height: 1.6;
}

.blog-card img {
  width: 100%;
  height: 180px;
  object-fit: contain;
  background: #ffffff;
  padding: 2px;
  border-bottom: 1px solid #eee;
  border-radius: 10px 10px 0 0;
  display:block;
}

.youtube {
  margin: 20px 0;
}

/* =========================
   blog category improve
   ========================= */

.blog-archive-wrap section {
  margin-bottom: 56px !important;
}

.blog-archive-wrap .section-title {
  display: inline-block;
  text-align: left !important;
  font-size: 1.5rem !important;
  margin: 0 0 20px !important;
  padding: 8px 16px 8px 14px;
  border-left: 6px solid var(--color-main);
  background: linear-gradient(90deg, rgba(47, 120, 170, 0.10), rgba(47, 120, 170, 0.03));
  border-radius: 0 14px 14px 0;
  color: var(--color-sub);
  box-shadow: 0 4px 14px rgba(24, 47, 66, 0.04);
}

.blog-archive-wrap .blog-list {
  margin-top: 4px;
}

/* カテゴリボタンも少し見やすく */
.blog-archive-wrap .btn.btn-secondary {
  margin: 4px 6px;
  min-height: 44px;
  padding: 0 16px;
  font-size: 0.9rem;
}

/* スマホ調整 */
@media (max-width: 900px) {
  .blog-archive-wrap .section-title {
    font-size: 1.2rem !important;
    padding: 7px 12px 7px 12px;
    margin-bottom: 16px !important;
  }
}

.blog-archive-wrap section {
  margin-bottom: 60px !important;
}

.blog-archive-wrap .section-title {
  font-weight: 700;
}

.blog-archive-wrap .section-title {
  display: inline-block;
  text-align: left !important;
  font-size: 1.5rem !important;
  margin: 0 0 20px !important;
  padding: 8px 16px 8px 14px;
  border-left: 6px solid var(--color-main);
  background: linear-gradient(90deg, rgba(47, 120, 170, 0.10), rgba(47, 120, 170, 0.03));
  border-radius: 0 14px 14px 0;
  color: var(--color-sub);
  box-shadow: 0 4px 14px rgba(24, 47, 66, 0.04);
}

.blog-archive-wrap section {
  margin-bottom: 60px !important;
}

.blog-archive-wrap .section-title {
  font-weight: 700;
}

.blog-highlight {
  border: 2px solid var(--color-main);
  background: #f0f8ff;
  padding: 16px 18px;
  margin-bottom: 24px;
  border-radius: 10px;
}

.blog-highlight h3 {
  margin: 0 0 6px;
  font-size: 1.1rem;
  color: var(--color-main);
}

.blog-highlight a {
  font-weight: bold;
  text-decoration: none;
}

.blog-highlight {
  padding: 12px 16px; /* 少し縮める */
  font-size: 0.95rem; /* 少しだけ小さく */
}


.youtube {
  position: relative;
  width: 100%;
  max-width: 800px;
  margin: 20px auto;
  aspect-ratio: 16 / 9;
}

.youtube iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.related-articles {
  margin-top: 28px;
  padding: 22px 24px;
  background: #f8fbfd;
  border: 1px solid rgba(47, 120, 170, 0.12);
  border-radius: 20px;
}

.related-articles h3 {
  margin: 0 0 14px;
  color: var(--color-sub);
  font-size: 1.15rem;
}

.related-article-list {
  margin: 0;
  padding-left: 1.2em;
}

.related-article-list li {
  margin-bottom: 10px;
}

.related-article-list a {
  color: var(--color-main-dark);
  text-decoration: none;
  font-weight: 700;
}

.related-article-list a:hover {
  text-decoration: underline;
}

.home-section-title {
  margin: 0 0 12px;
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  line-height: 1.35;
  text-align: center;
  color: var(--color-sub);
  letter-spacing: 0.02em;
  border-left: none;
  padding-left: 0;
}

.blog-archive-wrap .section-title {
  display: inline-block;
  text-align: left !important;
  font-size: 1.45rem !important;
  margin: 0 0 18px !important;
  padding: 7px 14px 7px 12px;
  border-left: 4px solid var(--color-main);
  background: linear-gradient(90deg, rgba(47, 120, 170, 0.08), rgba(47, 120, 170, 0.02));
  border-radius: 0 12px 12px 0;
  color: var(--color-sub);
  box-shadow: 0 3px 10px rgba(24, 47, 66, 0.03);
}

.btn.btn-secondary:hover {
  background-color: #2f78aa;
  color: #ffffff;
  border-color: #2f78aa;
}

.btn-primary {
  background: linear-gradient(135deg, #2f78aa, #3f92c9);
  color: #fff;
  border: none;
  box-shadow: 0 6px 18px rgba(47, 120, 170, 0.25);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(47, 120, 170, 0.35);
}


/* ロードマップ用だけ */
.roadmap-note {
  transition: background-color 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.roadmap-note:hover {
  background: #f4f9fc;
  border-color: rgba(47, 120, 170, 0.22);
  box-shadow: 0 6px 18px rgba(24, 47, 66, 0.06);
}

.roadmap-note a {
  color: var(--color-main-dark);
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}

.roadmap-note a:hover {
  color: var(--color-main);
}

/* 診断用はリンク装飾を広く当てない */
.diagnosis-note a:not(.btn) {
  color: inherit;
  font-weight: inherit;
  text-decoration: none;
}

.diagnosis-note:hover {
  background: var(--color-main-soft);
  border-color: rgba(47, 120, 170, 0.12);
  box-shadow: none;
}