:root {
  --color-ink: #17202a;
  --color-muted: #5d6975;
  --color-soft: #eef2f4;
  --color-line: #d8e0e5;
  --color-panel: #ffffff;
  --color-accent: #0f766e;
  --color-accent-dark: #134e4a;
  --color-warm: #d8b66f;
  --font-ja: "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-en: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 86px;
}

body {
  margin: 0;
  color: var(--color-ink);
  background: #f7f9fa;
  font-family: var(--font-ja);
  font-size: 15px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
}

p,
dd {
  overflow-wrap: anywhere;
  line-break: strict;
}

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

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 clamp(20px, 5vw, 56px);
  background: rgba(247, 249, 250, 0.88);
  border-bottom: 1px solid rgba(23, 32, 42, 0.08);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  width: 154px;
}

.brand__logo {
  display: block;
  width: 100%;
  height: auto;
}

.global-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--color-muted);
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 600;
}

.global-nav a {
  transition: color 0.2s ease;
}

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

.menu-button {
  display: none;
  width: 40px;
  height: 40px;
  padding: 0;
  background: transparent;
  border: 0;
}

.menu-button span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 6px auto;
  background: var(--color-ink);
  transition: transform 0.2s ease;
}

.menu-button[aria-expanded="true"] span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.menu-button[aria-expanded="true"] span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: 76vh;
  display: flex;
  align-items: center;
  padding: 124px clamp(20px, 6vw, 72px) 72px;
  background:
    linear-gradient(90deg, rgba(11, 23, 37, 0.9) 0%, rgba(11, 23, 37, 0.74) 42%, rgba(11, 23, 37, 0.16) 100%),
    url("../assets/hero-innovation-bg.jpg") center / cover no-repeat,
    #f7f9fa;
}

.hero__inner {
  position: relative;
  z-index: 1;
  width: min(1060px, 100%);
  margin: 0 auto;
}

.hero__eyebrow,
.section__label {
  margin: 0 0 14px;
  color: var(--color-accent-dark);
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1 {
  width: min(900px, 100%);
  margin: 0;
  color: #fff;
  font-size: 62px;
  line-height: 1.16;
  letter-spacing: 0;
  text-shadow: 0 20px 44px rgba(0, 0, 0, 0.24);
}

.hero__lead {
  width: min(620px, 100%);
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 17px;
}

.hero__eyebrow {
  color: rgba(185, 244, 235, 0.9);
}

.section {
  padding: 84px clamp(20px, 6vw, 72px);
}

.section__inner {
  width: min(1060px, 100%);
  margin: 0 auto;
}

.section__heading {
  margin-bottom: 32px;
}

.section h2 {
  margin: 0;
  font-size: 40px;
  line-height: 1.35;
  letter-spacing: 0;
}

.split {
  display: grid;
  grid-template-columns: minmax(240px, 0.75fr) minmax(0, 1.25fr);
  gap: clamp(36px, 8vw, 92px);
  align-items: start;
}

.section__body {
  color: var(--color-muted);
  font-size: 16px;
}

.section__body p {
  margin: 0;
}

.section__body p + p {
  margin-top: 18px;
}

.brand-section {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #eef2f1;
  border-block: 1px solid var(--color-line);
}

.brand-section__bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(247, 249, 250, 0.34) 0%, rgba(247, 249, 250, 0.7) 42%, rgba(247, 249, 250, 0.93) 100%),
    url("../assets/lumiros-brand-bg.jpg") center / cover no-repeat;
  opacity: 0.86;
}

.brand-section::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 18% 50%, rgba(15, 118, 110, 0.12), transparent 34%);
  pointer-events: none;
}

.brand-section__inner {
  position: relative;
  z-index: 1;
}

.brand-section__content {
  width: min(620px, 100%);
  margin-left: auto;
}

.brand-section__name {
  margin: 0 0 10px;
  color: var(--color-accent-dark);
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.brand-section h2 {
  margin-bottom: 22px;
}

.brand-section__content p:not(.section__label):not(.brand-section__name) {
  margin: 0;
  color: var(--color-muted);
  font-size: 16px;
}

.brand-section__content p + p {
  margin-top: 14px;
}

.business {
  background: #fff;
  border-block: 1px solid var(--color-line);
}

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

.business-card {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
  padding: 32px;
  background: var(--color-panel);
  border: 1px solid var(--color-line);
  border-radius: 8px;
  box-shadow: 0 18px 48px rgba(23, 32, 42, 0.06);
}

.business-card__media {
  display: grid;
  gap: 16px;
  justify-items: start;
}

.business-card__icon {
  width: 58px;
  height: 58px;
  padding: 13px;
  color: var(--color-accent-dark);
  background: #eef7f6;
  border: 1px solid rgba(15, 118, 110, 0.14);
  border-radius: 8px;
}

.business-card__icon path {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.business-card__number {
  color: var(--color-warm);
  font-family: var(--font-en);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
}

.business-card h3 {
  margin: 0 0 8px;
  font-size: 23px;
}

.business-card p {
  margin: 0;
  color: var(--color-muted);
}

.company-list {
  margin: 0;
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: 8px;
  overflow: hidden;
}

.company-list div {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  border-top: 1px solid var(--color-line);
}

.company-list div:first-child {
  border-top: 0;
}

.company-list dt,
.company-list dd {
  margin: 0;
  padding: 18px 22px;
}

.company-list dt {
  background: #f2f6f7;
  color: var(--color-accent-dark);
  font-weight: 700;
}

.company-list dd {
  color: var(--color-ink);
}

.site-footer {
  padding: 34px clamp(20px, 6vw, 72px);
  color: rgba(255, 255, 255, 0.72);
  background: #17202a;
}

.site-footer__inner {
  width: min(1060px, 100%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.site-footer__logo {
  display: inline-flex;
  width: 154px;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.94);
  border-radius: 8px;
}

.site-footer__logo img {
  display: block;
  width: 100%;
  height: auto;
}

.site-footer small {
  font-family: var(--font-en);
  font-size: 12px;
}

@media (max-width: 760px) {
  html {
    scroll-padding-top: 64px;
  }

  .site-header {
    height: 64px;
  }

  .brand {
    width: 138px;
  }

  .menu-button {
    display: block;
  }

  .global-nav {
    position: fixed;
    top: 64px;
    right: 16px;
    left: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    background: #fff;
    border: 1px solid var(--color-line);
    border-radius: 8px;
    box-shadow: 0 18px 40px rgba(23, 32, 42, 0.12);
  }

  .global-nav.is-open {
    display: flex;
  }

  .global-nav a {
    padding: 12px 14px;
  }

  .hero {
    min-height: 68vh;
    padding-top: 108px;
    background:
      linear-gradient(180deg, rgba(11, 23, 37, 0.88) 0%, rgba(11, 23, 37, 0.7) 54%, rgba(11, 23, 37, 0.28) 100%),
      url("../assets/hero-innovation-bg.jpg") 44% center / cover no-repeat,
      #f7f9fa;
  }

  .hero h1 {
    font-size: 38px;
  }

  .hero__lead {
    font-size: 15px;
  }

  .section h2 {
    font-size: 28px;
  }

  .section {
    padding-block: 64px;
  }

  .brand-section {
    min-height: 560px;
  }

  .brand-section__bg {
    background:
      linear-gradient(180deg, rgba(247, 249, 250, 0.92) 0%, rgba(247, 249, 250, 0.78) 48%, rgba(247, 249, 250, 0.54) 100%),
      url("../assets/lumiros-brand-bg.jpg") 68% center / cover no-repeat;
    opacity: 0.86;
  }

  .brand-section__content {
    margin-left: 0;
  }

  .brand-section__content p:not(.section__label):not(.brand-section__name) {
    font-size: 15px;
  }

  .split {
    grid-template-columns: 1fr;
  }

  .business-grid {
    grid-template-columns: 1fr;
  }

  .business-card {
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .business-card__media {
    display: flex;
    align-items: center;
    gap: 16px;
  }

  .business-card__icon {
    width: 52px;
    height: 52px;
    padding: 12px;
  }

  .company-list div {
    grid-template-columns: 1fr;
  }

  .company-list dt,
  .company-list dd {
    padding: 14px 18px;
  }

  .company-list dd {
    padding-top: 0;
  }

  .site-footer__inner {
    align-items: flex-start;
    flex-direction: column;
  }
}