:root {
  --navy: #0b2f67;
  --navy-dark: #06234f;
  --blue: #1d74c9;
  --teal: #0b9aa6;
  --ink: #17233c;
  --muted: #62708a;
  --line: #d9e3f2;
  --soft: #f5f8fc;
  --white: #ffffff;
  --shadow: 0 14px 34px rgba(11, 47, 103, 0.1);
  --shadow-soft: 0 8px 20px rgba(11, 47, 103, 0.06);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family:
    "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Hiragino Sans", "Yu Gothic", "YuGothic", Meiryo, sans-serif;
  line-height: 1.75;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(20px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--navy);
  font-weight: 800;
}

.brand-icon {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  object-fit: contain;
}

.site-nav {
  display: flex;
  gap: 20px;
  color: var(--navy-dark);
  font-size: 14px;
  font-weight: 500;
}

.site-nav a:hover,
.site-footer a:hover,
.back-link:hover {
  color: var(--blue);
}

.hero,
.section {
  max-width: 1120px;
  margin: 0 auto;
}

.hero {
  padding: clamp(46px, 8vw, 72px) clamp(20px, 5vw, 40px) 30px;
}

.hero-copy {
  max-width: 780px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  color: var(--navy-dark);
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.25;
  letter-spacing: 0;
}

.hero-copy > p:not(.eyebrow) {
  max-width: 720px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.text-link {
  display: inline-flex;
  width: fit-content;
  margin-top: 24px;
  color: var(--blue);
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.section {
  padding: 38px clamp(20px, 5vw, 40px);
}

.section.compact {
  padding-top: 24px;
}

.section-heading {
  margin-bottom: 20px;
}

.section-heading p:not(.eyebrow) {
  max-width: 720px;
  margin: 8px 0 0;
  color: var(--muted);
}

.section-heading h2 {
  margin: 0;
  color: var(--navy-dark);
  font-size: 28px;
  line-height: 1.35;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.article-card {
  display: flex;
  min-height: 300px;
  flex-direction: column;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow-soft);
  transition:
    border-color 160ms ease,
    transform 160ms ease;
}

.article-card:hover {
  border-color: rgba(29, 116, 201, 0.5);
  transform: translateY(-2px);
}

.card-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.role,
.step {
  width: fit-content;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
}

.role {
  color: var(--navy);
  background: #eaf2fd;
}

.step {
  color: var(--teal);
  background: #e7f8f9;
}

.article-card h3 {
  margin: 18px 0 10px;
  color: var(--navy-dark);
  font-size: 20px;
  line-height: 1.45;
}

.article-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.card-meta span,
.card-meta time {
  padding: 4px 8px;
  background: var(--soft);
  border-radius: 6px;
}

.read-more {
  margin-top: auto;
  padding-top: 22px;
  color: var(--blue);
  font-weight: 800;
}

.section-icon {
  display: inline-grid;
  flex: 0 0 auto;
  width: 46px;
  height: 46px;
  place-items: center;
  color: #5f789a;
  background: transparent;
  border: 0;
  border-radius: 0;
}

.ui-icon {
  width: 40px;
  height: 40px;
  color: currentColor;
}

.ui-icon path,
.ui-icon circle,
.ui-icon rect {
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.reading-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin: 0;
  padding: 0 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  list-style: none;
}

.reading-steps li {
  display: flex;
  position: relative;
  gap: 12px;
  justify-content: center;
  min-height: 172px;
  padding: 22px 18px 20px;
  background: var(--white);
  border-right: 1px solid #e7eef8;
  text-align: center;
}

.reading-steps h3,
.category-card h3 {
  margin: 0 0 6px;
  color: var(--navy-dark);
  font-size: 17px;
  line-height: 1.45;
}

.reading-steps p,
.category-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.reading-steps p,
.media-category-card p {
  text-align: left;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.category-card {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 20px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.category-card > span:not(.section-icon) {
  flex: 0 0 auto;
  height: fit-content;
  padding: 4px 9px;
  color: var(--navy-dark);
  background: var(--soft);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.latest-list {
  border-top: 1px solid var(--line);
}

.latest-list a {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  gap: 16px;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.latest-list time,
.latest-list span {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.latest-list strong {
  color: var(--navy-dark);
  font-size: 16px;
}

.policy-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.policy-list li {
  padding: 14px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  margin-top: 36px;
  padding: 28px clamp(20px, 5vw, 72px);
  color: #d9e7fb;
  background: var(--navy-dark);
}

.footer-about {
  max-width: 560px;
}

.site-footer p {
  max-width: 460px;
  margin: 6px 0 0;
  color: #b8c9e4;
  font-size: 14px;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: flex-start;
  font-size: 14px;
  font-weight: 500;
}

.copyright {
  grid-column: 1 / -1;
}

.hero-media {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(360px, 0.95fr);
  gap: clamp(24px, 5vw, 54px);
  align-items: center;
  max-width: 1160px;
  padding-top: clamp(30px, 5vw, 48px);
  padding-bottom: 18px;
}

.hero-media .hero-copy {
  max-width: 590px;
}

.hero-media h1 {
  max-width: 620px;
  font-size: clamp(32px, 4.2vw, 48px);
  overflow-wrap: normal;
}

.quiet-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  margin-top: 22px;
  padding: 10px 16px;
  color: var(--white);
  background: var(--blue);
  border: 1px solid var(--blue);
  border-radius: 4px;
  font-size: 14px;
  font-weight: 800;
}

.quiet-cta:hover {
  background: #0d5fa8;
  border-color: #0d5fa8;
}

.hero-visual {
  overflow: hidden;
  max-width: 580px;
  opacity: 0.92;
}

.hero-visual img {
  display: block;
  width: 100%;
  height: auto;
}

.featured-section {
  padding-top: 26px;
}

.featured-section .section-heading {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  column-gap: 30px;
  align-items: end;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.featured-section .section-heading h2 {
  grid-column: 1;
  font-size: 30px;
}

.featured-section .section-heading p:not(.eyebrow) {
  grid-column: 2;
  justify-self: end;
  margin: 0;
  font-size: 15px;
  text-align: right;
}

.media-article-grid {
  gap: 16px;
}

.media-article-card {
  display: flex;
  min-height: 0;
  flex-direction: column;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: none;
  transition:
    border-color 160ms ease,
    transform 160ms ease;
}

.media-article-card:hover {
  border-color: rgba(29, 116, 201, 0.42);
  transform: translateY(-2px);
}

.article-eyecatch {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: #f8fbff;
  border-bottom: 1px solid #eef3fa;
  aspect-ratio: 16 / 9;
}

.article-eyecatch img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.eyecatch-step {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 1;
  padding: 5px 10px;
  color: var(--white);
  background: #075fa9;
  border-radius: 3px;
  box-shadow: 0 1px 2px rgba(6, 35, 79, 0.1);
  font-size: 12px;
  font-weight: 900;
  line-height: 1.2;
}

.media-article-card.text-only {
  background: #fbfdff;
}

.media-article-card.text-only .article-card-head {
  padding-top: 18px;
}

.article-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 15px 18px 0;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
}

.article-card-head > span:last-child {
  color: var(--navy);
}

.article-card-head .step {
  padding: 0;
  color: var(--muted);
  background: transparent;
  border-radius: 0;
  font-size: 11px;
}

.article-card-body {
  padding: 18px 18px 0;
}

.article-category {
  margin: 0 0 9px !important;
  color: var(--blue) !important;
  font-size: 12px !important;
  font-weight: 900;
}

.media-article-card h3 {
  margin: 0 0 8px;
  color: var(--navy-dark);
  font-size: 19px;
  line-height: 1.55;
}

.media-article-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.article-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: auto;
  padding: 16px 18px;
  color: var(--muted);
  border-top: 1px solid #eef3fa;
  font-size: 12px;
  font-weight: 700;
}

.article-footer span {
  color: var(--blue);
  font-weight: 500;
}

.reading-steps li {
  display: flex;
  position: relative;
  gap: 12px;
  justify-content: center;
  align-items: center;
  min-height: 172px;
  padding: 22px 18px 20px;
  background: var(--white);
  border: 0;
  border-right: 1px solid #e7eef8;
  border-radius: 0;
  text-align: center;
}

.reading-step-head {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  margin-bottom: 12px;
}

.reading-steps li:last-child {
  border-right: 0;
}

.reading-steps li:not(:last-child)::after {
  position: absolute;
  top: 50%;
  right: -13px;
  z-index: 1;
  width: 0;
  height: 0;
  border-top: 15px solid transparent;
  border-bottom: 15px solid transparent;
  border-left: 20px solid #b7d5f1;
  content: "";
  transform: translateY(-50%);
}

.reading-steps .step-number {
  display: grid;
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  place-items: center;
  color: var(--white);
  background: var(--blue);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 900;
}

.reading-svg-icon {
  display: grid;
  width: 58px;
  height: 58px;
  margin: 0 auto 10px;
  place-items: center;
}

.reading-svg-icon .ui-icon {
  width: 54px;
  height: 54px;
}

.media-category-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.media-category-card {
  min-height: 0;
  flex-direction: column;
  align-items: center;
  padding: 22px 16px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-align: center;
  transition:
    border-color 160ms ease,
    background 160ms ease;
}

.media-category-card:hover {
  background: #fbfdff;
  border-color: rgba(29, 116, 201, 0.36);
}

.media-category-card > span:not(.section-icon) {
  align-self: center;
  margin-top: auto;
  padding: 5px 12px;
  color: var(--blue);
  background: #eaf2fd;
  border: 1px solid #d5e6f8;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
}

.media-category-card .category-svg-icon {
  width: 54px;
  height: 54px;
  margin: 0 auto 12px;
  color: #5f789a;
}

.media-category-card .category-svg-icon .ui-icon {
  width: 48px;
  height: 48px;
}

.media-category-card h3 {
  font-size: 16px;
  line-height: 1.42;
}

.split-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.split-heading a {
  color: var(--blue);
  font-size: 14px;
  font-weight: 500;
}

.latest-section {
  padding-top: 34px;
}

.latest-section .section-heading {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.latest-section .latest-list {
  border-top: 0;
}

.latest-list a {
  grid-template-columns: 160px minmax(0, 1fr) 104px;
  gap: 16px;
  padding: 15px 0;
}

.latest-list a:hover strong,
.latest-list a:hover em {
  color: var(--blue);
}

.latest-list em {
  color: var(--blue);
  font-size: 13px;
  font-style: normal;
  font-weight: 500;
  text-align: right;
}

.policy-section {
  padding-bottom: 24px;
}

.policy-card-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  border-top: 0;
}

.policy-card {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  column-gap: 12px;
  padding: 18px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.policy-card .policy-svg-icon,
.policy-number {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: #5f789a;
  background: #f6f9fd;
  border: 1px solid #dbe7f5;
  border-radius: 999px;
}

.policy-number {
  color: var(--white);
  background: var(--blue);
  border-color: var(--blue);
  font-size: 16px;
  font-weight: 900;
}

.policy-card .policy-svg-icon .ui-icon {
  width: 25px;
  height: 25px;
}

.policy-card h3 {
  margin: 0 0 5px;
  color: var(--navy-dark);
  font-size: 14px;
  line-height: 1.5;
}

.policy-card p {
  grid-column: 2;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.bottom-cta {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 22px clamp(20px, 5vw, 40px) 30px;
  background: transparent;
  border-top: 1px solid var(--line);
}

.bottom-cta h2 {
  margin: 0;
  color: var(--navy-dark);
  font-size: 20px;
}

.bottom-cta nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-end;
  justify-content: flex-end;
}

.bottom-cta a {
  padding: 0 0 2px;
  color: var(--blue);
  background: transparent;
  border: 0;
  border-bottom: 1px solid rgba(29, 116, 201, 0.32);
  border-radius: 0;
  font-size: 14px;
  font-weight: 500;
}

.bottom-cta a:hover {
  color: var(--blue);
  border-color: var(--blue);
}

.article-shell {
  max-width: 760px;
  margin: 0 auto;
  padding: 42px clamp(22px, 5vw, 36px) 88px;
}

.back-link {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 24px;
  color: var(--blue);
  border-bottom: 1px solid rgba(29, 116, 201, 0.28);
  font-size: 14px;
  font-weight: 700;
}

.article-header {
  padding-bottom: 34px;
  border-bottom: 1px solid var(--line);
}

.article-header h1 {
  margin: 0;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.38;
}

.article-header p {
  color: var(--muted);
}

.article-lead {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.9;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.article-meta span,
.keyword {
  width: fit-content;
  padding: 5px 10px;
  color: var(--navy);
  background: #eaf2fd;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.article-body {
  padding-top: 30px;
}

.article-body h2 {
  margin: 58px 0 18px;
  padding: 0 0 12px 14px;
  color: var(--navy-dark);
  border-bottom: 1px solid var(--line);
  border-left: 4px solid var(--blue);
  font-size: 25px;
  line-height: 1.45;
}

.article-body h3 {
  margin: 38px 0 12px;
  color: var(--navy);
  font-size: 20px;
  line-height: 1.45;
}

.article-body p,
.article-body li {
  color: var(--ink);
  font-size: 16.5px;
  line-height: 1.9;
}

.article-body p {
  margin: 0 0 20px;
}

.article-body ul,
.article-body ol {
  margin: 20px 0 28px;
  padding: 18px 22px 18px 30px;
  background: #fbfdff;
  border: 1px solid #e7eef8;
  border-radius: 8px;
}

.article-body li + li {
  margin-top: 8px;
}

.article-body table {
  display: block;
  overflow-x: auto;
  width: 100%;
  margin: 26px 0 14px;
  border: 1px solid #dbe7f5;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 8px;
  background: var(--white);
  font-size: 15px;
  line-height: 1.75;
}

.article-body thead {
  background: #f5f8fc;
}

.article-body th,
.article-body td {
  min-width: 148px;
  padding: 13px 15px;
  border-right: 1px solid #e7eef8;
  border-bottom: 1px solid #e7eef8;
  vertical-align: top;
  text-align: left;
}

.article-body th:first-child,
.article-body td:first-child {
  min-width: 112px;
  color: var(--navy-dark);
  font-weight: 800;
}

.article-body th {
  color: var(--navy-dark);
  font-weight: 800;
}

.article-body th:last-child,
.article-body td:last-child {
  border-right: 0;
}

.article-body tbody tr:last-child td {
  border-bottom: 0;
}

.article-body strong {
  color: var(--navy-dark);
  font-weight: 800;
}

.article-body a {
  color: var(--blue);
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-body blockquote {
  margin: 28px 0;
  padding: 16px 18px;
  color: var(--navy-dark);
  background: var(--soft);
  border-left: 4px solid rgba(29, 116, 201, 0.72);
  border-radius: 0 8px 8px 0;
}

.article-body blockquote p:last-child {
  margin-bottom: 0;
}

.article-body p:has(a[data-affiliate]) {
  margin: 30px 0;
  padding: 18px 20px;
  background: #f8fbff;
  border: 1px solid #dbe7f5;
  border-radius: 8px;
}

.article-body a[data-affiliate] {
  display: inline-flex;
  color: var(--navy);
  text-decoration-color: rgba(29, 116, 201, 0.38);
}

.article-body hr {
  margin: 46px 0 24px;
  border: 0;
  border-top: 1px solid var(--line);
}

.article-body hr ~ p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

@media (max-width: 1100px) {
  .featured-section .section-heading {
    grid-template-columns: 1fr;
    row-gap: 8px;
  }

  .featured-section .section-heading h2,
  .featured-section .section-heading p:not(.eyebrow) {
    grid-column: auto;
  }

  .site-footer {
    grid-template-columns: 1fr;
  }

  .footer-about strong {
    display: block;
    width: fit-content;
    max-width: 100%;
  }

  .site-footer nav {
    justify-content: flex-start;
  }
}

@media (max-width: 980px) {
  .hero-media {
    grid-template-columns: 1fr;
  }

  .hero-media .hero-copy {
    max-width: 100%;
  }

  .hero-visual {
    max-width: 100%;
  }

  .pc_br{
    display: none;
  }

  .hero-media h1{
    max-width: 100%;
  }
}

@media (max-width: 820px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav,
  .site-footer nav {
    flex-wrap: wrap;
    gap: 12px;
  }

  .brand-icon {
    width: 26px;
    height: 26px;
  }

  .hero-media {
    grid-template-columns: 1fr;
    padding-top: 38px;
  }

  .hero-visual {
    max-width: 100%;
  }

  .media-category-grid,
  .policy-card-grid {
    grid-template-columns: 1fr;
  }

  .featured-section .section-heading {
    grid-template-columns: 1fr;
    row-gap: 8px;
  }

  .article-grid,
  .reading-steps,
  .category-grid,
  .policy-list {
    grid-template-columns: 1fr;
  }

  .reading-steps {
    padding: 0 18px;
  }

  .reading-steps li {
    border-right: 0;
    border-bottom: 1px solid #e7eef8;
  }

  .reading-steps li:not(:last-child)::after {
    top: auto;
    right: auto;
    bottom: -15px;
    left: 50%;
    display: block;
    border-top: 20px solid #b7d5f1;
    border-right: 15px solid transparent;
    border-bottom: 0;
    border-left: 15px solid transparent;
    transform: translateX(-50%);
  }

  .reading-steps li:last-child {
    border-bottom: 0;
  }

  .bottom-cta {
    flex-direction: column;
  }

  .article-card {
    min-height: 0;
  }

  .media-article-card {
    min-height: 0;
  }

  .latest-list a {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .latest-list em {
    text-align: left;
  }

  .category-card {
    flex-direction: column;
  }

  .policy-card {
    border: 1px solid var(--line);
  }

  .policy-card:last-child {
    border-bottom: 1px solid var(--line);
  }
}