:root {
  --blue: #00508f;
  --blue-dark: #003f71;
  --blue-soft: #eaf4fb;
  --ink: #212529;
  --muted: #6d747b;
  --line: #e2e8ee;
  --beige: #f8f5ef;
  --beige-strong: #efe6d9;
  --white: #ffffff;
  --shadow: 0 18px 46px rgba(0, 80, 143, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Meiryo, "Hiragino Kaku Gothic Pro", "Hiragino Sans", "Noto Sans JP", sans-serif;
  font-size: 16px;
  line-height: 1.85;
  overflow-x: hidden;
}

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

a {
  color: inherit;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.narrow {
  width: min(880px, calc(100% - 40px));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid #eeeeee;
  backdrop-filter: blur(10px);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 34px;
  min-height: 86px;
}

.logo-mark {
  display: grid;
  place-items: center;
  width: 86px;
  height: 60px;
  border: 1px solid var(--blue);
  border-radius: 50%;
  color: var(--blue);
  font-weight: 700;
  line-height: 1.1;
}

.logo-mark span {
  font-size: 14px;
}

.logo-mark small {
  font-size: 8px;
  text-transform: uppercase;
}

.global-nav {
  display: flex;
  flex: 1;
  justify-content: center;
  gap: 28px;
  font-size: 14px;
  font-weight: 700;
}

.global-nav a,
.button,
.header-cta,
.sticky-cta a {
  text-decoration: none;
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  border-radius: 0;
  font-weight: 700;
}

.header-cta,
.button.primary {
  color: var(--white);
  background: var(--blue);
  border: 1px solid var(--blue);
}

.button.secondary {
  color: var(--blue);
  background: var(--white);
  border: 1px solid var(--blue);
}

.hero {
  position: relative;
  min-height: 620px;
  overflow: hidden;
  background: #eef3f7;
}

.hero-media {
  position: absolute;
  inset: 0;
  display: block;
}

.hero-bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 255, 255, 0.9) 32%, rgba(255, 255, 255, 0.28) 64%, rgba(255, 255, 255, 0.02) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  align-content: center;
  min-height: 620px;
  padding: 56px 0;
}

.eyebrow,
.section-label {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", YuMincho, "Yu Mincho", serif;
  font-weight: 500;
  letter-spacing: 0;
}

h1 {
  max-width: 620px;
  margin-bottom: 18px;
  color: var(--ink);
  font-size: 46px;
  line-height: 1.38;
}

h2 {
  margin-bottom: 22px;
  color: var(--blue);
  font-size: 34px;
  line-height: 1.45;
  text-align: center;
}

h2::after {
  display: block;
  width: 112px;
  height: 2px;
  margin: 22px auto 0;
  background: #a9d3f2;
  content: "";
}

h3 {
  margin-bottom: 16px;
  color: var(--ink);
  font-size: 22px;
  line-height: 1.45;
}

.lead {
  max-width: 560px;
  margin-bottom: 24px;
  color: #363c42;
  font-size: 18px;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  width: min(650px, 100%);
  margin: 20px 0 24px;
}

.hero-facts div {
  padding: 18px 16px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid var(--line);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.04);
}

.hero-facts strong {
  display: block;
  color: var(--blue);
  font-size: 24px;
  line-height: 1.2;
}

.hero-facts span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 20px 0 12px;
}

.cta-row.center {
  justify-content: center;
}

.notice {
  color: var(--muted);
  font-size: 13px;
}

.notice.center {
  margin-top: 18px;
  text-align: center;
}

.breadcrumb {
  padding: 12px 0;
  color: #4f565d;
  background: var(--white);
  border-top: 1px solid #eeeeee;
  border-bottom: 1px solid #eeeeee;
  font-size: 13px;
}

.section {
  padding: 78px 0;
}

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

.intro {
  text-align: center;
}

.intro p {
  font-size: 17px;
}

.section-head {
  width: min(820px, 100%);
  margin: 0 auto 36px;
  text-align: center;
}

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

.benefits-section {
  background: linear-gradient(180deg, #ffffff 0%, #f7fbfe 100%);
}

.daily-fit-section .benefit-grid {
  margin-top: 38px;
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.benefit-card {
  min-height: 250px;
  padding: 28px 24px;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 14px 34px rgba(0, 80, 143, 0.06);
}

.benefit-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-bottom: 18px;
  color: var(--white);
  background: var(--blue);
  font-weight: 700;
}

.benefit-card h3 {
  color: var(--blue-dark);
  font-size: 20px;
}

.benefit-card p {
  margin-bottom: 0;
  color: #444b52;
}

.split-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 52px;
  align-items: center;
}

.copy-block h2 {
  text-align: left;
}

.copy-block h2::after {
  margin-left: 0;
}

.copy-block p {
  color: #3f464d;
}

.check-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 26px;
}

.check-grid span {
  position: relative;
  min-height: 74px;
  padding: 16px 16px 16px 42px;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.03);
}

.check-grid span::before {
  position: absolute;
  top: 19px;
  left: 16px;
  color: var(--blue);
  content: "✓";
  font-weight: 700;
}

.image-card {
  margin: 0;
  padding: 20px;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.compare-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.compare-panel {
  position: relative;
  min-height: 280px;
  padding: 34px;
  background: var(--white);
  border: 1px solid var(--line);
}

.compare-panel.featured {
  background: linear-gradient(180deg, #ffffff 0%, var(--blue-soft) 100%);
  border-color: #b8d6ed;
  box-shadow: var(--shadow);
}

.panel-kicker {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
}

.compare-panel ul,
.safety-list {
  margin: 0;
  padding-left: 20px;
}

.compare-panel li,
.safety-list li {
  margin-bottom: 8px;
}

.product-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(0, 1.18fr);
  gap: 52px;
  align-items: center;
}

.product-image-card {
  margin: 0;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.product-image-card img {
  width: 100%;
}

.strength-list {
  display: grid;
  gap: 12px;
  margin: 24px 0 20px;
}

.strength-list div {
  padding: 18px 20px;
  background: var(--white);
  border: 1px solid var(--line);
}

.strength-list strong {
  display: block;
  margin-bottom: 4px;
  color: var(--blue);
  font-size: 18px;
}

.strength-list span {
  display: block;
  color: #3f464d;
}

.price-band {
  background: linear-gradient(180deg, #ffffff 0%, var(--beige) 100%);
}

.price-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  width: min(820px, 100%);
  margin: 0 auto;
}

.price-card {
  padding: 34px;
  text-align: center;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.04);
}

.price-card.main {
  border-color: #b8d6ed;
  box-shadow: var(--shadow);
}

.price-card span {
  display: block;
  color: var(--muted);
  font-weight: 700;
}

.price-card strong {
  display: block;
  margin: 10px 0 4px;
  color: var(--blue);
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", YuMincho, "Yu Mincho", serif;
  font-size: 44px;
  font-weight: 500;
  line-height: 1.1;
}

.price-card p {
  margin-bottom: 8px;
  color: var(--muted);
}

.price-card em {
  color: var(--blue-dark);
  font-style: normal;
  font-weight: 700;
}

.flow-section {
  background: linear-gradient(180deg, var(--white) 0%, var(--blue-soft) 100%);
}

.flow-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.flow-list li {
  min-height: 94px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid #cddfed;
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(0, 80, 143, 0.06);
}

.flow-list span {
  display: block;
  color: var(--blue);
  font-size: 13px;
}

.safety-list {
  padding: 28px 28px 28px 48px;
  background: var(--white);
  border: 1px solid var(--line);
}

details {
  margin-top: 12px;
  padding: 18px 20px;
  background: var(--white);
  border: 1px solid var(--line);
}

summary {
  cursor: pointer;
  color: var(--ink);
  font-weight: 700;
}

details p {
  margin: 12px 0 0;
  color: var(--muted);
}

.final-cta {
  padding: 82px 0 104px;
  color: var(--white);
  text-align: center;
  background: var(--blue);
}

.final-cta .section-label,
.final-cta h2 {
  color: var(--white);
}

.final-cta h2::after {
  background: rgba(255, 255, 255, 0.46);
}

.final-cta p {
  color: rgba(255, 255, 255, 0.86);
}

.final-cta .button.secondary {
  color: var(--white);
  background: transparent;
  border-color: rgba(255, 255, 255, 0.72);
}

.sticky-cta {
  display: none;
}

@media (max-width: 920px) {
  .global-nav {
    display: none;
  }

  .header-inner {
    justify-content: space-between;
  }

  .split-grid,
  .product-grid,
  .compare-layout,
  .price-board {
    grid-template-columns: 1fr;
  }

  .benefit-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .flow-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .container,
  .narrow {
    width: calc(100% - 28px);
    max-width: 640px;
  }

  body {
    font-size: 15px;
  }

  .header-inner {
    min-height: 68px;
  }

  .logo-mark {
    width: 74px;
    height: 50px;
  }

  .header-cta {
    display: none;
    min-height: 40px;
    padding: 0 14px;
    font-size: 14px;
  }

  .hero {
    min-height: 760px;
  }

  .hero-media {
    position: absolute;
  }

  .hero-bg {
    object-position: center top;
  }

  .hero-overlay {
    display: block;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0.08) 28%, rgba(255, 255, 255, 0.82) 53%, rgba(255, 255, 255, 0.98) 100%);
  }

  .hero-content {
    align-content: end;
    min-height: 760px;
    padding: 280px 0 34px;
  }

  h1 {
    font-size: 31px;
  }

  h2 {
    font-size: 25px;
  }

  .lead {
    max-width: 22em;
    font-size: 16px;
    overflow-wrap: anywhere;
  }

  .hero-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
    margin: 16px 0 18px;
  }

  .hero-facts div {
    padding: 12px 8px;
    background: rgba(255, 255, 255, 0.9);
  }

  .hero-facts strong {
    font-size: 18px;
  }

  .hero-facts span {
    font-size: 11px;
    line-height: 1.45;
  }

  .button {
    width: 100%;
  }

  .breadcrumb {
    font-size: 11px;
  }

  .section {
    padding: 54px 0;
  }

  .check-grid,
  .benefit-grid,
  .flow-list {
    grid-template-columns: 1fr;
  }

  .image-card,
  .product-image-card {
    padding: 10px;
  }

  .benefit-card,
  .compare-panel,
  .price-card {
    padding: 24px;
  }

  .benefit-card {
    min-height: auto;
    padding: 22px;
  }

  .price-card strong {
    font-size: 36px;
  }

  .safety-list {
    padding: 22px 22px 22px 40px;
  }

  .final-cta {
    padding-bottom: 118px;
  }

  .sticky-cta {
    position: fixed;
    right: 12px;
    bottom: 12px;
    left: 12px;
    z-index: 40;
    display: block;
  }

  .sticky-cta a {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    color: var(--white);
    background: var(--blue);
    border: 1px solid var(--blue);
    font-weight: 700;
    box-shadow: 0 12px 28px rgba(0, 80, 143, 0.24);
  }
}