:root {
  --ink: #17211f;
  --muted: #5f6f6a;
  --paper: #fbf8f1;
  --white: #ffffff;
  --teal: #12665f;
  --teal-dark: #0d4743;
  --brass: #b18434;
  --coral: #c6543f;
  --line: #e4ded1;
  --shadow: 0 22px 60px rgba(23, 33, 31, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.75;
}

a {
  color: inherit;
}

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(251, 248, 241, 0.92);
  border-bottom: 1px solid rgba(228, 222, 209, 0.9);
  backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  color: var(--white);
  background: var(--teal);
  border-radius: 8px;
  font-weight: 900;
  font-size: 1.2rem;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  line-height: 1;
  letter-spacing: 0;
  font-size: 1.05rem;
}

.brand small {
  color: var(--muted);
  font-size: 0.72rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.9rem;
  font-weight: 700;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
}

.hero {
  position: relative;
  min-height: 680px;
  overflow: hidden;
  color: var(--white);
  background: #22302d;
}

.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(15, 24, 22, 0.88) 0%, rgba(15, 24, 22, 0.7) 34%, rgba(15, 24, 22, 0.18) 72%),
    linear-gradient(180deg, rgba(15, 24, 22, 0.12) 0%, rgba(15, 24, 22, 0.45) 100%);
}

.hero-inner {
  position: relative;
  min-height: 680px;
  display: flex;
  align-items: center;
  padding: 88px 0 120px;
}

.hero-copy {
  width: min(650px, 100%);
}

.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  color: var(--brass);
  font-weight: 900;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 16px 0 20px;
  font-size: clamp(2.6rem, 8vw, 5.2rem);
  line-height: 1.05;
  letter-spacing: 0;
}

.hero-lead {
  margin: 0;
  max-width: 620px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.08rem;
}

.hero-actions,
.final-inner .btn {
  margin-top: 30px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 20px;
  border-radius: 8px;
  font-weight: 900;
  text-decoration: none;
  line-height: 1.3;
}

.btn-primary {
  color: var(--white);
  background: var(--coral);
  box-shadow: 0 16px 34px rgba(198, 84, 63, 0.24);
}

.btn-secondary {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.08);
}

.btn-outline {
  color: var(--teal-dark);
  border: 1px solid rgba(18, 102, 95, 0.3);
  background: #f8fcfa;
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.hero-facts span {
  padding: 8px 11px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.86rem;
  font-weight: 700;
}

.alert-band {
  padding: 34px 0;
  background: #183f3c;
  color: var(--white);
}

.sample-notice {
  padding: 18px 0;
  background: #fff7df;
  border-bottom: 1px solid #ead9a8;
}

.sample-notice-inner {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 18px;
  align-items: center;
}

.sample-notice strong {
  color: #7a4a08;
  font-weight: 900;
}

.sample-notice p {
  margin: 0;
  color: #695328;
  font-size: 0.92rem;
}

.alert-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.2fr;
  gap: 28px;
  align-items: center;
}

.alert-grid h2 {
  margin: 8px 0 0;
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.35;
}

.alert-grid p {
  margin: 0;
  color: rgba(255, 255, 255, 0.86);
}

.alert-grid a {
  color: #f2cc7a;
  font-weight: 800;
}

.section {
  padding: 82px 0;
}

.section h2 {
  margin: 10px 0 0;
  font-size: clamp(1.9rem, 4vw, 3rem);
  line-height: 1.25;
  letter-spacing: 0;
}

.section h3 {
  margin: 8px 0 10px;
  font-size: 1.2rem;
  line-height: 1.35;
}

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

.split,
.proof-layout,
.scenario-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 42px;
  align-items: start;
}

.section-copy p {
  margin: 18px 0 0;
  font-size: 1.02rem;
}

.hiben-section {
  background: #fffaf0;
}

.risk-dashboard {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 18px;
  align-items: stretch;
}

.hiben-explainer {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}

.hiben-explainer article {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.hiben-explainer span {
  display: inline-flex;
  padding: 4px 9px;
  border-radius: 999px;
  color: var(--white);
  background: var(--teal);
  font-size: 0.76rem;
  font-weight: 900;
}

.hiben-explainer .warning span {
  background: var(--brass);
}

.hiben-explainer .danger {
  border-color: rgba(198, 84, 63, 0.34);
  background: #fff5f1;
}

.hiben-explainer .danger span {
  background: var(--coral);
}

.hiben-explainer p {
  margin: 0;
  font-size: 0.92rem;
}

.donut-card,
.bar-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.donut-card {
  display: grid;
  place-items: center;
  text-align: center;
}

.donut {
  --p: 30.4%;
  display: grid;
  place-items: center;
  width: min(250px, 70vw);
  aspect-ratio: 1;
  margin-bottom: 18px;
  border-radius: 50%;
  background:
    radial-gradient(circle closest-side, var(--white) 64%, transparent 66%),
    conic-gradient(var(--coral) 0 var(--p), #e8e0d1 var(--p) 100%);
}

.donut span {
  color: var(--coral);
  font-size: 3.2rem;
  font-weight: 900;
  line-height: 1;
}

.donut small {
  font-size: 1.1rem;
}

.donut-card h3,
.bar-card h3 {
  margin: 0 0 10px;
  font-size: 1.32rem;
}

.donut-card p,
.bar-card p {
  margin: 0 0 14px;
}

.donut-card a,
.bar-card a,
.scenario-layout a,
.source-grid a {
  color: var(--teal-dark);
  font-weight: 900;
  text-decoration-thickness: 2px;
}

.donut-card small,
.bar-card small,
.source-note {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.bar-chart {
  display: grid;
  gap: 14px;
  margin: 22px 0 14px;
}

.bar-row {
  display: grid;
  grid-template-columns: 92px 1fr 96px;
  gap: 12px;
  align-items: center;
  font-size: 0.92rem;
}

.bar-row span {
  color: var(--muted);
  font-weight: 900;
}

.bar-row div {
  height: 16px;
  overflow: hidden;
  border-radius: 999px;
  background: #ede6d8;
}

.bar-row i {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--teal);
}

.bar-row-legal i {
  background: var(--coral);
}

.bar-row strong {
  font-size: 0.9rem;
}

.boundary-map {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 12px;
  align-items: stretch;
  margin-top: 20px;
}

.boundary-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.boundary-card span {
  display: inline-flex;
  padding: 4px 9px;
  border-radius: 999px;
  color: var(--white);
  font-size: 0.76rem;
  font-weight: 900;
}

.boundary-card.safe span {
  background: var(--teal);
}

.boundary-card.caution span {
  background: var(--brass);
}

.boundary-card.legal span {
  background: var(--coral);
}

.boundary-card p {
  margin: 0;
  font-size: 0.92rem;
}

.boundary-arrow {
  display: grid;
  place-items: center;
  color: var(--brass);
  font-size: 1.8rem;
  font-weight: 900;
}

.metric-row {
  display: grid;
  gap: 14px;
}

.metric-row div {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.metric-row strong {
  display: block;
  color: var(--teal);
  font-size: 2rem;
  line-height: 1;
}

.metric-row span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-weight: 700;
}

.route-section,
.keyword-section,
.guide-section,
.type-section,
.source-section {
  background: #ffffff;
}

.legal-check-section {
  background: #fffaf0;
}

.legal-check {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 34px;
  align-items: start;
}

.legal-signs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.legal-signs div {
  padding: 18px;
  border: 1px solid rgba(198, 84, 63, 0.22);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 16px 42px rgba(198, 84, 63, 0.08);
}

.legal-signs strong,
.legal-signs span {
  display: block;
}

.legal-signs strong {
  color: #8a2f22;
  font-size: 1.02rem;
}

.legal-signs span {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.legal-cta {
  grid-column: 2;
  padding: 22px;
  border-radius: 8px;
  color: var(--white);
  background: var(--teal-dark);
}

.legal-cta p {
  margin: 0 0 16px;
  color: rgba(255, 255, 255, 0.86);
  font-weight: 800;
}

.scenario-section {
  background: #183f3c;
  color: var(--white);
}

.scenario-section p {
  color: rgba(255, 255, 255, 0.82);
}

.scenario-section a {
  color: #f2cc7a;
}

.scenario-section .source-note {
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.66);
}

.timeline {
  display: grid;
  gap: 12px;
}

.timeline div {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 4px 14px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.timeline span {
  grid-row: span 2;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  color: #17312e;
  background: #f2cc7a;
  font-weight: 900;
}

.timeline p {
  margin: 0;
  font-size: 0.92rem;
}

.type-matrix {
  display: grid;
  grid-template-columns: 1.2fr repeat(3, 1fr);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.type-matrix > div {
  min-height: 58px;
  padding: 14px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-weight: 800;
}

.type-matrix > div:nth-child(4n) {
  border-right: 0;
}

.type-matrix > div:nth-last-child(-n + 4) {
  border-bottom: 0;
}

.matrix-head {
  color: var(--white);
  background: var(--teal-dark);
}

.type-matrix .ok {
  color: var(--teal-dark);
  background: #eaf5f1;
}

.type-matrix .mid {
  color: #7a4a08;
  background: #fff7df;
}

.type-matrix .ng {
  color: #8a2f22;
  background: #fff0ec;
}

.section-head {
  max-width: 760px;
  margin-bottom: 30px;
}

.section-head p {
  margin: 14px 0 0;
}

.route-grid,
.keyword-grid,
.guide-grid,
.source-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.route-card,
.guide-grid article,
.source-grid article,
.keyword-grid article,
.offer-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.route-card {
  padding: 26px;
  min-height: 300px;
}

.route-card span {
  display: inline-flex;
  color: var(--brass);
  font-weight: 900;
  font-size: 0.82rem;
}

.route-card p {
  min-height: 98px;
}

.route-card a {
  color: var(--teal-dark);
  font-weight: 900;
  text-decoration-thickness: 2px;
}

.route-legal {
  border-top: 5px solid var(--coral);
}

.route-union {
  border-top: 5px solid var(--teal);
}

.route-price {
  border-top: 5px solid var(--brass);
}

.compare-section {
  background: #f5efe2;
}

.offer-list {
  display: grid;
  gap: 14px;
}

.offer-card {
  display: grid;
  grid-template-columns: 1.2fr 0.62fr 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 22px;
}

.offer-tag {
  display: inline-flex;
  margin-bottom: 8px;
  padding: 4px 9px;
  color: var(--white);
  background: var(--teal);
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 900;
}

.offer-main h3,
.offer-main p,
.offer-note {
  margin: 0;
}

.offer-main p,
.offer-note {
  color: var(--muted);
  font-size: 0.92rem;
}

.offer-data {
  display: grid;
  gap: 10px;
  margin: 0;
}

.offer-data div {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 10px;
}

.offer-data dt {
  color: var(--muted);
  font-weight: 700;
}

.offer-data dd {
  margin: 0;
  font-weight: 900;
}

.keyword-grid article {
  padding: 24px;
}

.guide-grid {
  grid-template-columns: repeat(4, 1fr);
}

.guide-grid article {
  padding: 22px;
  background: #fbf8f1;
}

.guide-grid p {
  margin: 0;
  font-size: 0.92rem;
}

.source-grid article {
  padding: 24px;
  background: #fbf8f1;
}

.source-grid p {
  margin: 0 0 12px;
}

.keyword-grid ul,
.check-list {
  padding: 0;
  margin: 16px 0 0;
  list-style: none;
}

.keyword-grid li,
.check-list li {
  position: relative;
  padding-left: 22px;
  margin: 8px 0;
  font-weight: 700;
}

.keyword-grid li::before,
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.74em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brass);
}

.proof-section {
  background: #e8f1ee;
}

.contact-section {
  background: #fffaf0;
}

.mini-columns {
  padding: 22px 0;
  background: #fbf8f1;
  border-top: 1px solid var(--line);
}

.mini-columns-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  color: var(--muted);
  font-size: 0.86rem;
}

.mini-columns-inner span {
  font-weight: 900;
}

.mini-columns-inner a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid rgba(95, 111, 106, 0.28);
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 36px;
  align-items: start;
}

.sample-flow {
  display: grid;
  gap: 12px;
}

.sample-flow div {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 4px 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.sample-flow span {
  grid-row: span 2;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  color: var(--white);
  background: var(--teal);
  border-radius: 999px;
  font-weight: 900;
}

.sample-flow strong {
  font-size: 1rem;
}

.sample-flow p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.check-list {
  padding: 24px;
  border-radius: 8px;
  background: var(--white);
  border: 1px solid rgba(18, 102, 95, 0.15);
}

.final-cta {
  padding: 84px 0;
  color: var(--white);
  background: var(--teal-dark);
}

.final-inner {
  max-width: 760px;
}

.final-inner h2 {
  margin: 10px 0 0;
  font-size: clamp(1.9rem, 4vw, 3rem);
  line-height: 1.25;
}

.final-inner p {
  color: rgba(255, 255, 255, 0.82);
}

.site-footer {
  padding: 28px 0;
  background: #111816;
  color: rgba(255, 255, 255, 0.72);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  font-size: 0.86rem;
}

.footer-inner p {
  margin: 0;
}

.footer-inner nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-inner a {
  color: rgba(255, 255, 255, 0.72);
  text-decoration: none;
}

.footer-note {
  margin-top: 12px;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.52);
}

.footer-note p {
  margin: 0;
}

.policy-page {
  background: var(--paper);
}

.policy-hero {
  padding: 76px 0 42px;
  background: #183f3c;
  color: var(--white);
}

.policy-hero h1 {
  margin: 10px 0 8px;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.2;
}

.policy-hero p {
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
}

.policy-body {
  max-width: 900px;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.policy-body h2 {
  margin: 32px 0 8px;
  font-size: 1.35rem;
}

.policy-body h2:first-child {
  margin-top: 0;
}

.policy-body p {
  color: var(--muted);
}

.policy-table {
  display: grid;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.policy-table div {
  display: grid;
  grid-template-columns: 180px 1fr;
  border-bottom: 1px solid var(--line);
}

.policy-table div:last-child {
  border-bottom: 0;
}

.policy-table dt,
.policy-table dd {
  margin: 0;
  padding: 14px 16px;
}

.policy-table dt {
  background: #f5efe2;
  font-weight: 900;
}

.policy-table dd {
  color: var(--muted);
}

.policy-date {
  margin-top: 34px;
  font-size: 0.9rem;
}

.column-list {
  display: grid;
  gap: 14px;
  max-width: 920px;
}

.column-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.column-card h2 {
  margin: 0 0 8px;
  font-size: 1.18rem;
  line-height: 1.45;
}

.column-card h2 a,
.column-card > a,
.back-link {
  color: var(--teal-dark);
  font-weight: 900;
  text-decoration-thickness: 2px;
}

.column-card p {
  margin: 0 0 12px;
  color: var(--muted);
}

.article-page {
  min-height: 100vh;
  padding: 42px 0 72px;
  background: var(--paper);
}

.article-body {
  max-width: 860px;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.article-body h1 {
  margin: 12px 0 18px;
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.24;
}

.article-body h2 {
  margin: 34px 0 10px;
  font-size: 1.42rem;
}

.article-lead {
  color: var(--ink);
  font-size: 1.08rem;
  font-weight: 700;
}

.article-body ul {
  padding: 0;
  margin: 14px 0 0;
  list-style: none;
}

.article-body li {
  position: relative;
  padding-left: 22px;
  margin: 8px 0;
  color: var(--muted);
  font-weight: 700;
}

.article-body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.74em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brass);
}

.article-source {
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.86rem;
}

.back-link {
  display: inline-flex;
  margin-bottom: 24px;
}

@media (max-width: 900px) {
  .nav {
    display: none;
  }

  .hero,
  .hero-inner {
    min-height: 640px;
  }

  .hero-overlay {
    background: linear-gradient(180deg, rgba(15, 24, 22, 0.86) 0%, rgba(15, 24, 22, 0.78) 54%, rgba(15, 24, 22, 0.5) 100%);
  }

  .alert-grid,
  .split,
  .risk-dashboard,
  .hiben-explainer,
  .boundary-map,
  .scenario-layout,
  .legal-check,
  .legal-signs,
  .proof-layout,
  .contact-layout,
  .route-grid,
  .guide-grid,
  .source-grid,
  .keyword-grid,
  .offer-card {
    grid-template-columns: 1fr;
  }

  .legal-cta {
    grid-column: auto;
  }

  .boundary-arrow {
    transform: rotate(90deg);
  }

  .type-matrix {
    grid-template-columns: 1fr;
  }

  .type-matrix > div,
  .type-matrix > div:nth-child(4n),
  .type-matrix > div:nth-last-child(-n + 4) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .type-matrix > div:last-child {
    border-bottom: 0;
  }

  .sample-notice-inner {
    grid-template-columns: 1fr;
  }

  .offer-card {
    align-items: stretch;
  }

  .route-card p {
    min-height: auto;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 24px, 1120px);
  }

  .header-inner {
    min-height: 64px;
  }

  .hero-inner {
    padding: 64px 0 88px;
  }

  .hero h1 {
    font-size: clamp(2.25rem, 15vw, 3.6rem);
  }

  .hero-lead {
    font-size: 1rem;
  }

  .btn {
    width: 100%;
  }

  .section {
    padding: 62px 0;
  }

  .bar-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .donut-card,
  .bar-card {
    padding: 22px;
  }

  .footer-inner {
    display: block;
  }

  .policy-body {
    padding: 22px;
  }

  .article-body {
    padding: 24px;
  }

  .policy-table div {
    grid-template-columns: 1fr;
  }
}