:root {
  --ink: #172326;
  --muted: #64777a;
  --line: #d8e2e1;
  --paper: #f7f9f7;
  --white: #ffffff;
  --teal: #00a6ac;
  --teal-dark: #0a7378;
  --mint: #bfe7d2;
  --coral: #df7058;
  --amber: #dca744;
  --shadow: 0 18px 48px rgba(28, 54, 58, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-family: "Segoe UI", "Noto Sans JP", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  overflow-x: hidden;
}

body.is-locked {
  overflow: hidden;
}

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

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

img {
  display: block;
  width: 100%;
  height: auto;
}

.splash {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  background: #eef4f2;
  color: var(--teal-dark);
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

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

.splash-inner {
  width: min(420px, calc(100vw - 48px));
  text-align: center;
}

.splash-inner p {
  margin: 0 0 18px;
  font-weight: 700;
}

.progress-track {
  height: 2px;
  overflow: hidden;
  background: #cbd9d7;
}

.progress-track span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--teal), var(--coral));
}

#progressText {
  display: block;
  margin-top: 16px;
  font-size: 0.95rem;
}

.particle-canvas {
  position: fixed;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.site-shell {
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.site-header {
  position: fixed;
  top: 0;
  left: 70px;
  right: 0;
  z-index: 80;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 24px 7vw 18px;
  background: rgba(247, 249, 247, 0);
  transition: background 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
}

.site-header.is-scrolled {
  padding-top: 14px;
  padding-bottom: 14px;
  background: rgba(247, 249, 247, 0.92);
  box-shadow: 0 10px 30px rgba(33, 52, 56, 0.08);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 210px;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--ink);
  background: var(--white);
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.25;
}

.brand small {
  color: var(--muted);
  font-size: 0.78rem;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.desktop-nav a {
  position: relative;
}

.desktop-nav a::after {
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: var(--coral);
  content: "";
  transition: width 0.25s ease;
}

.desktop-nav a:hover::after,
.desktop-nav a:focus-visible::after {
  width: 100%;
}

.header-contact {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.outline-button,
.primary-button,
.text-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 6px;
  font-weight: 800;
}

.outline-button {
  min-width: 118px;
  border: 1px solid var(--ink);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.62);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.outline-button:hover,
.outline-button:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 8px 18px rgba(23, 35, 38, 0.18);
}

.primary-button {
  min-width: 164px;
  padding: 0 24px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--white);
  overflow: hidden;
  position: relative;
}

.primary-button::before {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--teal-dark), var(--coral));
  content: "";
  transform: translateX(-101%);
  transition: transform 0.36s ease;
}

.primary-button:hover::before,
.primary-button:focus-visible::before {
  transform: translateX(0);
}

.primary-button {
  isolation: isolate;
}

.primary-button::after {
  content: "";
  position: relative;
  z-index: -1;
}

.primary-button span,
.primary-button {
  z-index: 1;
}

.text-link {
  color: var(--ink);
  gap: 10px;
}

.text-link::after {
  display: inline-block;
  width: 42px;
  height: 2px;
  background: var(--teal);
  content: "";
  transition: transform 0.25s ease;
}

.text-link:hover::after,
.text-link:focus-visible::after {
  transform: translateX(8px);
}

.menu-button {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 120;
  width: 70px;
  height: 100vh;
  border: 0;
  border-right: 1px solid var(--ink);
  background: rgba(247, 249, 247, 0.94);
}

.menu-button span {
  position: absolute;
  left: 21px;
  width: 30px;
  height: 3px;
  border-radius: 3px;
  background: var(--ink);
  transition: top 0.28s ease, background 0.28s ease;
}

.menu-button span:nth-child(1) {
  top: calc(50% - 11px);
}

.menu-button span:nth-child(2) {
  top: 50%;
}

.menu-button span:nth-child(3) {
  top: calc(50% + 11px);
}

.menu-button.is-active span:nth-child(1),
.menu-button.is-active span:nth-child(3) {
  top: 50%;
}

.menu-button.is-active span {
  background: var(--white);
}

.side-nav {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: linear-gradient(135deg, rgba(10, 115, 120, 0.96), rgba(223, 112, 88, 0.94));
  transform: translateX(-100%);
  transition: transform 0.55s cubic-bezier(0.7, 0, 0.2, 1);
}

.side-nav.is-open {
  transform: translateX(0);
}

.side-nav-inner {
  display: grid;
  min-height: 100%;
  place-content: center;
  gap: 14px;
  padding-left: 70px;
}

.side-nav a {
  color: var(--white);
  font-size: 2.3rem;
  font-weight: 800;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.32s ease, transform 0.32s ease;
}

.side-nav.is-open a {
  opacity: 1;
  transform: translateY(0);
}

.side-nav.is-open a:nth-child(2) {
  transition-delay: 0.08s;
}

.side-nav.is-open a:nth-child(3) {
  transition-delay: 0.16s;
}

.side-nav.is-open a:nth-child(4) {
  transition-delay: 0.24s;
}

.side-nav.is-open a:nth-child(5) {
  transition-delay: 0.32s;
}

.hero {
  position: relative;
  display: grid;
  min-height: 100svh;
  grid-template-columns: minmax(0, 0.95fr) minmax(420px, 0.85fr);
  align-items: center;
  gap: 40px;
  padding: 120px 7vw 70px 130px;
}

.hero::before {
  position: absolute;
  top: 14%;
  left: 8%;
  z-index: -1;
  width: 260px;
  height: 260px;
  border: 1px solid rgba(223, 112, 88, 0.45);
  content: "";
  transform: rotate(24deg);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--teal-dark);
  font-size: 0.88rem;
  font-weight: 800;
}

.hero h1 {
  margin: 0;
  font-size: 3rem;
  line-height: 1.18;
}

.hero-lead {
  max-width: 560px;
  margin: 30px 0 0;
  color: var(--muted);
  font-weight: 700;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 22px;
  margin-top: 34px;
}

.hero-visual {
  position: relative;
  min-height: 520px;
}

.hero-visual img {
  height: 520px;
  object-fit: cover;
  border: 1px solid rgba(23, 35, 38, 0.12);
  box-shadow: var(--shadow);
  animation: fluidMask 24s ease-in-out infinite;
}

.fluid-aura {
  position: absolute;
  right: -32px;
  bottom: -32px;
  z-index: -1;
  width: 62%;
  height: 52%;
  background: linear-gradient(135deg, var(--mint), var(--amber));
  opacity: 0.72;
  animation: fluidMask 20s ease-in-out infinite reverse;
}

@keyframes fluidMask {
  0%,
  100% {
    border-radius: 64% 36% 52% 48% / 52% 43% 57% 48%;
  }

  25% {
    border-radius: 42% 58% 38% 62% / 64% 55% 45% 36%;
  }

  50% {
    border-radius: 58% 42% 68% 32% / 42% 65% 35% 58%;
  }

  75% {
    border-radius: 48% 52% 44% 56% / 58% 35% 65% 42%;
  }
}

.scroll-cue {
  position: absolute;
  left: 130px;
  bottom: 42px;
  width: 30px;
  height: 54px;
  border: 1px solid var(--ink);
}

.scroll-cue span {
  position: absolute;
  top: 8px;
  left: 50%;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--teal);
  transform: translateX(-50%);
  animation: scrollCue 1.6s ease-in-out infinite;
}

@keyframes scrollCue {
  0% {
    transform: translate(-50%, 0);
    opacity: 0;
  }

  30%,
  70% {
    opacity: 1;
  }

  100% {
    transform: translate(-50%, 28px);
    opacity: 0;
  }
}

.random-char {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.8em) rotate(2deg);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

body.appear .random-char {
  opacity: 1;
  transform: translateY(0) rotate(0);
}

.section {
  padding: 105px 7vw 105px 130px;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 42px;
}

.section-heading span {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--coral);
  font-size: 0.82rem;
  font-weight: 900;
}

.section-heading h2 {
  margin: 0;
  font-size: 1.8rem;
  line-height: 1.35;
}

.section-heading.compact {
  margin-bottom: 24px;
}

.section-heading.compact h2 {
  font-size: 1.5rem;
}

.topics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

.topic-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 28px rgba(25, 54, 58, 0.08);
  overflow: hidden;
  transition: transform 0.28s ease, box-shadow 0.28s ease;
}

.topic-card:nth-child(1) {
  margin-top: 74px;
}

.topic-card:nth-child(2) {
  margin-top: 44px;
}

.topic-card:nth-child(3) {
  margin-top: 18px;
}

.topic-card:hover,
.topic-card:focus-within {
  transform: translateY(-8px);
  box-shadow: 0 18px 42px rgba(25, 54, 58, 0.16);
}

.image-zoom {
  aspect-ratio: 4 / 3;
  margin: 0;
  overflow: hidden;
  background: #eaf0ef;
}

.image-zoom img {
  height: 100%;
  object-fit: cover;
  transform: scale(1.08);
  transition: transform 0.45s ease;
}

.topic-card:hover img,
.topic-card:focus-within img {
  transform: scale(1);
}

.topic-body {
  min-height: 180px;
  padding: 18px 20px 22px;
}

.topic-body time {
  color: var(--muted);
  font-size: 0.83rem;
  font-weight: 700;
}

.topic-body h3 {
  margin: 10px 0 0;
  font-size: 1rem;
  line-height: 1.65;
}

.message-section {
  display: grid;
  grid-template-columns: minmax(320px, 0.88fr) minmax(0, 0.82fr);
  align-items: center;
  gap: 64px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.74), rgba(191, 231, 210, 0.22));
}

.message-visual img {
  height: 500px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.message-copy p {
  max-width: 590px;
  margin: 0;
  color: var(--muted);
  font-weight: 700;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
}

.metric-row div {
  border-top: 2px solid var(--ink);
  padding-top: 14px;
}

.metric-row strong {
  display: block;
  color: var(--teal-dark);
  font-size: 2.5rem;
  line-height: 1;
}

.metric-row span {
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 800;
}

.facility-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.72fr);
  gap: 54px;
  align-items: center;
}

.facility-image {
  position: relative;
}

.facility-image::before {
  position: absolute;
  inset: -28px auto auto -28px;
  z-index: -1;
  width: 44%;
  height: 38%;
  background: var(--coral);
  content: "";
  animation: fluidMask 18s ease-in-out infinite;
}

.facility-image img {
  height: 520px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.facility-list {
  display: grid;
  gap: 24px;
}

.feature-line {
  border-bottom: 1px solid var(--line);
  padding-bottom: 24px;
}

.feature-line span {
  color: var(--amber);
  font-weight: 900;
}

.feature-line h3 {
  margin: 4px 0 8px;
  font-size: 1.35rem;
}

.feature-line p {
  margin: 0;
  color: var(--muted);
  font-weight: 700;
}

.statistics-section {
  background: rgba(255, 255, 255, 0.58);
}

.chart-layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.8fr) minmax(360px, 1fr);
  gap: 24px;
}

.chart-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  padding: 24px;
  box-shadow: 0 14px 34px rgba(25, 54, 58, 0.08);
}

.chart-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 16px;
}

.chart-title span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.chart-title strong {
  font-size: 1.08rem;
}

.chart-panel canvas {
  display: block;
  width: 100%;
  height: 320px;
}

.contact-section {
  position: relative;
  padding: 120px 7vw 120px 130px;
  text-align: center;
}

.contact-section::before {
  position: absolute;
  top: 0;
  left: calc(50% + 35px);
  width: 1px;
  height: 82px;
  background: var(--ink);
  content: "";
}

.contact-inner span {
  color: var(--coral);
  font-weight: 900;
}

.contact-inner h2 {
  margin: 8px 0 8px;
  font-size: 2.3rem;
}

.contact-inner p {
  margin: 0 0 28px;
  color: var(--muted);
  font-weight: 800;
}

.site-footer {
  position: relative;
  min-height: 210px;
  padding: 40px 7vw 48px 130px;
  text-align: center;
}

.page-top {
  display: block;
  width: 32px;
  height: 32px;
  margin: 0 auto 36px;
  border: 2px solid;
  border-color: var(--muted) var(--muted) transparent transparent;
  background: transparent;
  transform: rotate(-45deg);
}

.wave-canvas {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: -1;
  width: 100%;
  height: 180px;
}

.js-reveal,
.js-smooth,
.js-zoom,
.js-chart {
  opacity: 0;
}

.js-reveal.is-visible {
  animation: fadeDown 0.62s ease forwards;
}

.js-smooth.is-visible {
  animation: smoothIn 0.82s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

.js-zoom.is-visible {
  animation: zoomIn 0.72s ease forwards;
}

.js-chart.is-visible {
  animation: fadeDown 0.62s ease forwards;
}

@keyframes fadeDown {
  from {
    opacity: 0;
    transform: translateY(-42px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes smoothIn {
  from {
    opacity: 0;
    transform: translate3d(0, 70px, 0) skewY(7deg);
  }

  to {
    opacity: 1;
    transform: translate3d(0, 0, 0) skewY(0);
  }
}

@keyframes zoomIn {
  from {
    opacity: 0;
    transform: scale(1.08);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

@media (max-width: 1120px) {
  .site-header {
    padding-right: 36px;
  }

  .desktop-nav {
    display: none;
  }

  .hero {
    grid-template-columns: minmax(0, 1fr);
    padding-right: 36px;
  }

  .hero-visual {
    min-height: auto;
  }

  .hero-visual img {
    height: 420px;
  }

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

  .topic-card:nth-child(n) {
    margin-top: 0;
  }

  .message-section,
  .facility-layout,
  .chart-layout {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 760px) {
  .menu-button {
    width: 58px;
    height: 58px;
    border-right: 0;
    border-bottom: 1px solid var(--ink);
  }

  .menu-button span {
    left: 15px;
    width: 28px;
  }

  .menu-button span:nth-child(1) {
    top: 18px;
  }

  .menu-button span:nth-child(2) {
    top: 28px;
  }

  .menu-button span:nth-child(3) {
    top: 38px;
  }

  .menu-button.is-active span:nth-child(1),
  .menu-button.is-active span:nth-child(3) {
    top: 28px;
  }

  .site-header {
    left: 0;
    padding: 14px 18px 12px 72px;
  }

  .brand {
    min-width: 0;
  }

  .brand strong {
    font-size: 0.92rem;
  }

  .brand small,
  .header-contact span {
    display: none;
  }

  .outline-button {
    min-width: 92px;
    min-height: 38px;
    font-size: 0.82rem;
  }

  .side-nav-inner {
    padding-left: 0;
  }

  .side-nav a {
    font-size: 1.9rem;
  }

  .hero,
  .section,
  .contact-section,
  .site-footer {
    padding-left: 24px;
    padding-right: 24px;
  }

  .hero {
    padding-top: 110px;
  }

  .hero h1 {
    font-size: 3rem;
  }

  .hero-lead {
    font-size: 0.98rem;
  }

  .hero-visual img,
  .message-visual img,
  .facility-image img {
    height: 340px;
  }

  .scroll-cue {
    display: none;
  }

  .section-heading h2 {
    font-size: 1.5rem;
  }

  .topics-grid,
  .metric-row {
    grid-template-columns: minmax(0, 1fr);
  }

  .topic-body {
    min-height: auto;
  }

  .chart-panel {
    padding: 18px;
  }

  .chart-title {
    display: block;
  }

  .contact-section::before {
    left: 50%;
  }

  .contact-inner h2 {
    font-size: 1.75rem;
  }
}

@media (max-width: 420px) {
  .hero h1 {
    font-size: 2.35rem;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .primary-button,
  .text-link {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}

h1 span, h1 p, h2 span, h2 p { font-size: inherit; }