:root {
  --ink: #0b1f2a;
  --ink-soft: #1a3544;
  --mist: #e7f2f4;
  --paper: #f4fafb;
  --teal: #00c2a8;
  --teal-deep: #009e89;
  --line: rgba(11, 31, 42, 0.12);
  --shadow: 0 24px 60px rgba(11, 31, 42, 0.12);
  --font-display: "Syne", "Noto Sans JP", sans-serif;
  --font-body: "Noto Sans JP", "Hiragino Sans", sans-serif;
  --max: 1120px;
}

html[lang="en"] {
  --font-body: "Noto Sans", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.75;
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(0, 194, 168, 0.18), transparent 55%),
    radial-gradient(900px 500px at -10% 20%, rgba(26, 53, 68, 0.08), transparent 50%),
    linear-gradient(180deg, #eef7f8 0%, var(--paper) 42%, #ffffff 100%);
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px);
  background: rgba(244, 250, 251, 0.82);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(244, 250, 251, 0.94);
}

.nav-inner {
  width: min(100% - 2.5rem, var(--max));
  margin: 0 auto;
  min-height: 4.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand img {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.65rem;
}

.brand span {
  font-size: 1.15rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.35rem 1.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.95rem;
}

.nav-links a {
  position: relative;
  padding: 0.35rem 0;
  opacity: 0.72;
  transition: opacity 0.2s ease;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  opacity: 1;
}

.nav-links a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--teal);
  transform-origin: left;
  animation: grow-in 0.45s ease both;
}

.nav-links .language-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.28rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  opacity: 1;
}

.nav-links .language-switch::before {
  content: "🌐";
  font-family: sans-serif;
  font-size: 0.9rem;
  line-height: 1;
}

.nav-links .language-switch:hover {
  border-color: var(--teal);
  color: var(--teal-deep);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 0.6rem;
  padding: 0.45rem 0.7rem;
  font: inherit;
  cursor: pointer;
}

main {
  overflow: clip;
}

.hero {
  position: relative;
  min-height: calc(100vh - 4.25rem);
  display: grid;
  align-items: end;
  padding: 4rem 0 5.5rem;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(115deg, rgba(11, 31, 42, 0.92) 0%, rgba(11, 31, 42, 0.72) 48%, rgba(0, 194, 168, 0.35) 100%),
    radial-gradient(circle at 70% 35%, rgba(0, 194, 168, 0.35), transparent 40%),
    linear-gradient(160deg, #0b1f2a, #163847);
  z-index: -2;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -20% 40%;
  height: 70%;
  background:
    radial-gradient(ellipse at center, rgba(0, 194, 168, 0.28), transparent 65%);
  filter: blur(8px);
  z-index: -1;
  animation: drift 12s ease-in-out infinite alternate;
}

.hero-inner {
  width: min(100% - 2.5rem, var(--max));
  margin: 0 auto;
  color: #f7fffe;
}

.hero-brand {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.75rem;
  opacity: 0;
  animation: rise 0.8s ease 0.1s forwards;
}

.hero-brand img {
  width: 4.5rem;
  height: 4.5rem;
  border-radius: 1.15rem;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
}

.hero-brand strong {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
}

.hero h1 {
  max-width: 14ch;
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.8vw, 2.75rem);
  font-weight: 700;
  line-height: 1.45;
  padding-bottom: 0.12em;
  letter-spacing: -0.02em;
  opacity: 0;
  animation: rise 0.8s ease 0.25s forwards;
}

.hero p {
  max-width: 34rem;
  margin: 0 0 2rem;
  font-size: 1.05rem;
  opacity: 0;
  color: rgba(247, 255, 254, 0.86);
  animation: rise 0.8s ease 0.4s forwards;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  opacity: 0;
  animation: rise 0.8s ease 0.55s forwards;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.7rem 1.35rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--teal);
  color: var(--ink);
}

.button-primary:hover {
  background: #2ad7bf;
}

.button-ghost {
  border: 1px solid rgba(247, 255, 254, 0.35);
  color: #f7fffe;
}

.button-ghost:hover {
  background: rgba(247, 255, 254, 0.08);
}

.section {
  width: min(100% - 2.5rem, var(--max));
  margin: 0 auto;
  padding: 5rem 0;
}

.section-label {
  margin: 0 0 0.75rem;
  color: var(--teal-deep);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.section h2 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.35rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.lead {
  max-width: 40rem;
  margin: 0 0 2.5rem;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
  align-items: start;
}

.feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
}

.feature-list li {
  padding: 1.35rem 0 0;
  border-top: 1px solid var(--line);
  opacity: 0;
  transform: translateY(12px);
}

.feature-list li.is-visible {
  animation: rise 0.7s ease forwards;
}

.feature-list h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
}

.feature-list p {
  margin: 0;
  color: var(--ink-soft);
}

.panel {
  padding: 1.75rem;
  border-radius: 1.25rem;
  background: linear-gradient(160deg, rgba(0, 194, 168, 0.12), rgba(255, 255, 255, 0.7));
  border: 1px solid rgba(0, 194, 168, 0.18);
  box-shadow: var(--shadow);
}

.panel h3 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
}

.panel p {
  margin: 0;
  color: var(--ink-soft);
}

.page-hero {
  padding: 4.5rem 0 2rem;
}

.page-hero .section {
  padding-top: 0;
  padding-bottom: 0;
}

.page-hero h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.page-hero p {
  max-width: 36rem;
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.coming-soon {
  display: grid;
  place-items: center;
  min-height: 42vh;
  text-align: center;
  border-radius: 1.5rem;
  border: 1px dashed rgba(0, 194, 168, 0.45);
  background:
    radial-gradient(circle at 50% 0%, rgba(0, 194, 168, 0.12), transparent 55%),
    rgba(255, 255, 255, 0.55);
  padding: 3rem 1.5rem;
}

.coming-soon strong {
  display: block;
  margin-bottom: 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
}

.coming-soon p {
  margin: 0;
  color: var(--ink-soft);
}

.company-table {
  width: 100%;
  border-collapse: collapse;
  background: rgba(255, 255, 255, 0.65);
  border-radius: 1rem;
  overflow: hidden;
  border: 1px solid var(--line);
}

.company-table th,
.company-table td {
  padding: 1.15rem 1.25rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.company-table tr:last-child th,
.company-table tr:last-child td {
  border-bottom: none;
}

.company-table th {
  width: 8.5rem;
  color: var(--ink-soft);
  font-weight: 600;
  background: rgba(0, 194, 168, 0.06);
}

.business-list {
  margin: 0;
  padding-left: 1.2rem;
}

.business-list li + li {
  margin-top: 0.45rem;
}

.site-footer {
  margin-top: 2rem;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.55);
}

.footer-inner {
  width: min(100% - 2.5rem, var(--max));
  margin: 0 auto;
  padding: 2rem 0 2.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes grow-in {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}

@keyframes drift {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(-4%, 6%, 0);
  }
}

@media (max-width: 860px) {
  .split {
    grid-template-columns: 1fr;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 0.35rem);
    right: 1.25rem;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    min-width: 11rem;
    padding: 0.6rem;
    border-radius: 0.9rem;
    background: #fff;
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
  }

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

  .nav-links a {
    padding: 0.7rem 0.8rem;
  }

  .nav-inner {
    position: relative;
  }

  .company-table,
  .company-table tbody,
  .company-table tr,
  .company-table th,
  .company-table td {
    display: block;
    width: 100%;
  }

  .company-table th {
    padding-bottom: 0.25rem;
    border-bottom: none;
  }

  .company-table td {
    padding-top: 0.35rem;
  }
}