:root {
  --navy: #0A1F44;
  --navy-deep: #081730;
  --gold: #B38B59;
  --gold-soft: #F3EADF;
  --text: #1F2937;
  --muted: #5B6573;
  --line: #D9E0EA;
  --bg: #FFFFFF;
  --bg-soft: #F7F9FC;
  --bg-accent: #F9F7F2;
  --success-bg: #EEF7F2;
  --success-border: #B7D9C2;
  --warn-bg: #FFF5EE;
  --warn-border: #E9C2A8;
  --shadow: 0 12px 32px rgba(10, 31, 68, 0.08);
  --radius: 18px;
  --radius-sm: 12px;
  --container: 1160px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "YuGothic", "Noto Sans JP", sans-serif;
  color: var(--text);
  background: var(--bg);
  font-size: 16.5px;
  line-height: 1.85;
  -webkit-text-size-adjust: 100%;
}

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

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

p,
ul,
ol,dl {
  margin: 0;
}

ul,
ol {
  padding: 0;
}

.container {
  width: min(calc(100% - 40px), var(--container));
  margin: 0 auto;
}

.narrow {
  width: min(calc(100% - 40px), 980px);
  margin: 0 auto;
}

.section {
  padding: 72px 0;
}

.hero.section {
  padding: 48px 0 56px;
}

.section-alt {
  background: var(--bg-soft);
}

.section-accent-soft {
  background: linear-gradient(180deg, #FCFCFE 0%, var(--bg-accent) 100%);
}

.section-heading {
  margin-bottom: 28px;
}

.section-heading.center {
  text-align: center;
}

.section-heading h2 {
  margin: 0 0 14px;
  font-size: clamp(1.9rem, 3vw, 2.45rem);
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: var(--navy);
}

.section-heading p,
.split-content > p,
.hero-description,
.section-note,
.stack-item p,
.timeline p,
.faq-item p,
.final-cta-box p {
  color: var(--muted);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--gold-soft);
  color: var(--navy);
  font-size: 0.95rem;
  font-weight: 700;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(10,31,68,0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 84px;
}

.header-logo {
  flex: 0 0 auto;
}

.header-logo img,
.footer-logo img {
  height: auto;
  width: auto;
}

.header-logo img {
  max-width: 220px;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.header-link {
  font-size: 0.95rem;
  color: var(--navy);
  font-weight: 600;
}

.breadcrumb-wrap {
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.breadcrumb {
  padding: 14px 0;
  font-size: 0.92rem;
  color: var(--muted);
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.breadcrumb li + li::before {
  content: "＞";
  margin-right: 8px;
  color: #8B96A8;
}

.hero {
  padding-top: 0;
}

.hero-grid,
.split {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.95fr);
  gap: 44px;
  align-items: start;
}

.hero-grid {
  grid-template-columns: minmax(0, 1.45fr) minmax(340px, 1fr);
  gap: 36px;
  align-items: start;
}

.hero-copy h1 {
  margin: 0 0 18px;
  font-size: clamp(2rem, 4vw, 3.25rem);
  line-height: 1.22;
  color: var(--navy);
  letter-spacing: 0.01em;
}

.hero-lead {
  margin-bottom: 14px;
  font-size: clamp(1.2rem, 2.5vw, 1.7rem);
  line-height: 1.5;
  color: var(--text);
  font-weight: 700;
}

.hero-description {
  margin-bottom: 22px;
  max-width: 52ch;
}

.media-card {
  border-radius: var(--radius);
  overflow: hidden;
  background: #E9EEF5;
  box-shadow: var(--shadow);
}

.hero-media.media-card {
  width: min(100%, 400px);
  aspect-ratio: 4 / 5;
  max-height: 500px;
  margin-inline: auto;
  align-self: start;
}

.split-media.media-card {
  width: min(100%, 390px);
  aspect-ratio: 4 / 5;
  max-height: 500px;
  margin-inline: auto;
  align-self: start;
}

.media-card img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center;
  display: block;
  background: #E9EEF5;
}

.point-list,
.support-list,
.check-list,
.plain-list {
  list-style: none;
}

.point-list {
  display: grid;
  gap: 12px;
}

.point-list li,
.support-list li,
.check-list li,
.plain-list li,
.worry-card p {
  position: relative;
  padding-left: 32px;
}

.point-list li::before,
.support-list li::before,
.check-list li::before,
.plain-list li::before,
.worry-card p::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  transform: translateY(-50%);
}

.point-list li::before,
.check-list li::before,
.worry-card p::before {
  background: linear-gradient(135deg, var(--gold) 0%, #D5B084 100%);
  box-shadow: inset 0 0 0 4px rgba(255,255,255,0.85);
}

.support-list li::before,
.plain-list li::before {
  background: var(--navy);
  box-shadow: inset 0 0 0 4px rgba(255,255,255,0.9);
}

.point-list-hero {
  margin-bottom: 26px;
}

.hero-cta-group {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 14px 24px;
  border-radius: 999px;
  font-weight: 700;
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  line-height: 1.35;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--navy);
  color: #fff;
  box-shadow: 0 12px 24px rgba(10, 31, 68, 0.18);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: #10295A;
}

.btn-secondary {
  border: 1px solid rgba(10,31,68,0.16);
  background: #fff;
  color: var(--navy);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  border-color: rgba(10,31,68,0.35);
}

.btn-white {
  background: #fff;
  color: var(--navy);
}

.btn-gold {
  background: var(--gold);
  color: #fff;
}

.btn-large {
  min-width: min(100%, 420px);
}

.cta-note,
.cta-subnote,
.footer-cta-note {
  font-size: 0.92rem;
  color: var(--muted);
}

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

.info-card,
.method-card,
.compare-card,
.check-card,
.stack-item,
.price-card,
.subtle-box,
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 10px 24px rgba(10, 31, 68, 0.04);
}

.info-card,
.check-card,
.stack-item,
.subtle-box {
  padding: 24px;
}

.worry-card {
  min-height: 100%;
}

.section-note {
  margin-top: 22px;
}

.split-content {
  min-width: 0;
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.method-card {
  padding: 28px 22px;
}

.method-card h3,
.compare-card h3,
.check-card h3,
.stack-item h3,
.subtle-box h3,
.price-card h3,
.final-cta-box h2 {
  margin: 0 0 14px;
  line-height: 1.45;
}

.method-card h3 {
  color: var(--navy);
  font-size: 1.35rem;
}

.method-card.featured {
  border-color: rgba(179, 139, 89, 0.45);
  background: linear-gradient(180deg, #FFFDFC 0%, #FBF7F1 100%);
}

.method-card dl {
  display: grid;
  gap: 14px;
}

.method-card dl div {
  padding-top: 14px;
  border-top: 1px solid #E6EAF1;
}

.method-card dt {
  margin-bottom: 6px;
  color: var(--navy);
  font-weight: 700;
}

.method-card dd {
  margin: 0;
  color: var(--muted);
}

.stack-list {
  display: grid;
  gap: 16px;
}

.stack-item h3 {
  color: var(--navy);
  font-size: 1.08rem;
}

.compare-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.compare-card {
  padding: 28px 24px;
}

.compare-card h3 {
  font-size: 1.35rem;
}

.compare-good {
  background: var(--success-bg);
  border-color: var(--success-border);
}

.compare-caution {
  background: var(--warn-bg);
  border-color: var(--warn-border);
}

.plain-list,
.support-list {
  display: grid;
  gap: 12px;
}

.check-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.check-card:last-child:nth-child(odd) {
  grid-column: 1 / -1;
}

.check-card h3 {
  color: var(--navy);
  font-size: 1.16rem;
}

.check-list {
  display: grid;
  gap: 10px;
}

.inline-cta {
  margin-top: 24px;
}

.timeline {
  list-style: none;
  display: grid;
  gap: 18px;
  counter-reset: flow;
}

.timeline li {
  position: relative;
  padding: 24px 24px 24px 72px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 10px 24px rgba(10, 31, 68, 0.04);
}

.timeline li::before {
  content: "";
  position: absolute;
  left: 26px;
  top: 28px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: inset 0 0 0 5px rgba(255,255,255,0.86);
}

.timeline h3 {
  margin: 0 0 8px;
  color: var(--navy);
  font-size: 1.08rem;
}

.subtle-box {
  margin-top: 22px;
  background: #fff;
}

.text-link {
  color: var(--navy);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.inline-link-wrap {
  margin-top: 18px;
}

.price-card {
  padding: 32px;
}

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

.price-list div {
  padding: 20px 16px;
  background: var(--bg-soft);
  border-radius: var(--radius-sm);
  border: 1px solid #E4EAF3;
  text-align: center;
}

.price-list span {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 0.95rem;
}

.price-list strong {
  display: block;
  color: var(--navy);
  font-size: 1.08rem;
  line-height: 1.5;
}

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

.faq-item {
  overflow: hidden;
}

.faq-item summary {
  position: relative;
  padding: 22px 64px 22px 24px;
  list-style: none;
  cursor: pointer;
  color: var(--navy);
  font-weight: 700;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after,
.faq-item summary::before {
  content: "";
  position: absolute;
  right: 24px;
  top: 50%;
  width: 16px;
  height: 2px;
  background: var(--navy);
  transform: translateY(-50%);
  transition: transform 0.2s ease;
}

.faq-item summary::before {
  transform: translateY(-50%) rotate(90deg);
}

.faq-item[open] summary::before {
  transform: translateY(-50%) rotate(0deg);
  opacity: 0;
}

.faq-item p {
  padding: 0 24px 24px;
}

.final-cta-section {
  background: var(--navy);
  color: #fff;
}

.final-cta-box {
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(255,255,255,0.06) 0%, rgba(255,255,255,0.02) 100%);
  padding: 42px 36px;
  text-align: center;
  box-shadow: 0 20px 48px rgba(0,0,0,0.18);
}

.final-cta-box h2 {
  color: #fff;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.final-cta-box p,
.final-cta-box .cta-subnote {
  color: rgba(255,255,255,0.82);
}

.final-cta-box .btn {
  margin-top: 22px;
}

.site-footer {
  background: var(--navy);
  color: rgba(255,255,255,0.92);
  padding: 40px 0 26px;
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) auto minmax(260px, 0.9fr);
  gap: 28px;
  align-items: start;
}

.footer-logo img {
  max-width: 230px;
}

.footer-company {
  margin-top: 16px;
  font-weight: 700;
}

.footer-copy {
  margin-top: 10px;
  max-width: 34ch;
  color: rgba(255,255,255,0.76);
}

.footer-links {
  display: grid;
  gap: 12px;
  align-content: start;
}

.footer-links a {
  color: rgba(255,255,255,0.9);
}

.footer-cta-block {
  display: grid;
  gap: 12px;
  justify-items: start;
}

.footer-cta-note {
  color: rgba(255,255,255,0.74);
}

.footer-bottom {
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,0.12);
  font-size: 0.92rem;
  color: rgba(255,255,255,0.68);
}

.sticky-cta {
  position: fixed;
  left: 50%;
  bottom: 14px;
  z-index: 90;
  transform: translateX(-50%);
  width: min(calc(100% - 28px), 460px);
  min-height: 54px;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 999px;
  background: var(--navy);
  color: #fff;
  box-shadow: 0 14px 34px rgba(10,31,68,0.28);
  font-weight: 700;
}

.is-sticky-hidden {
  opacity: 0;
  pointer-events: none;
}

@media (max-width: 1100px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(300px, 0.9fr);
    gap: 26px;
  }

  .split {
    grid-template-columns: 1fr 0.88fr;
    gap: 30px;
  }

  .method-grid,
  .price-list {
    grid-template-columns: 1fr;
  }

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

  .footer-cta-block {
    justify-items: start;
  }
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .hero-media.media-card {
    width: min(100%, 420px);
    height: clamp(420px, 58vw, 500px);
    max-height: 500px;
  }
}

@media (max-width: 860px) {
  body {
    font-size: 15.8px;
    padding-bottom: 84px;
  }

  .section {
    padding: 58px 0;
  }

  .hero.section {
    padding: 40px 0 48px;
  }

  .header-inner {
    min-height: 74px;
  }

  .header-nav {
    gap: 10px;
  }

  .header-link {
    font-size: 0.88rem;
  }

  .split,
  .compare-grid,
  .check-grid,
  .card-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid,
  .split {
    gap: 22px;
  }

  .split-media.media-card {
    width: min(100%, 420px);
    height: clamp(400px, 54vw, 500px);
    max-height: 500px;
  }

  .split-reverse-mobile .split-media {
    order: 2;
  }

  .split-reverse-mobile .split-content {
    order: 1;
  }

  .media-card {
    max-width: 420px;
  }

  .hero-media,
  .split-media {
    width: 100%;
  }

  .stack-item,
  .timeline li,
  .price-card,
  .compare-card,
  .method-card,
  .check-card,
  .info-card,
  .subtle-box {
    padding: 22px 18px;
  }

  .btn-large {
    min-width: 100%;
  }

  .hero-cta-group {
    align-items: stretch;
  }

  .sticky-cta {
    display: inline-flex;
  }
}

@media (max-width: 640px) {
  .container,
  .narrow {
    width: min(calc(100% - 28px), var(--container));
  }

  .header-inner {
    gap: 10px;
  }

  .header-logo img {
    max-width: 168px;
  }

  .header-nav {
    margin-left: auto;
  }

  .header-link {
    display: none;
  }

  .header-cta {
    min-height: 46px;
    padding: 10px 16px;
    font-size: 0.92rem;
    white-space: nowrap;
  }

  .breadcrumb {
    font-size: 0.84rem;
  }

  .hero {
    padding-top: 0;
  }

  .hero-copy h1 {
    font-size: 2rem;
  }

  .hero-lead {
    font-size: 1.16rem;
  }

  .section-heading h2,
  .final-cta-box h2 {
    font-size: 1.7rem;
  }

  .media-card {
    max-width: 100%;
  }

  .hero-media.media-card,
  .split-media.media-card {
    width: min(100%, 420px);
    height: clamp(340px, 64vw, 420px);
    max-height: 420px;
  }

  .media-card img {
    height: 100%;
  }

  .timeline li {
    padding-left: 60px;
  }

  .timeline li::before {
    left: 20px;
  }

  .final-cta-box {
    padding: 34px 20px;
    border-radius: 22px;
  }

  .footer-logo img {
    max-width: 210px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .btn,
  .faq-item summary::after,
  .faq-item summary::before {
    transition: none;
  }
}