:root {
  --ink: #f8fcff;
  --navy: #073e66;
  --sea: #4ba9d2;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #edf8fc;
  color: #17384d;
  font-family:
    "Yu Mincho", "Hiragino Mincho ProN", "Hiragino Mincho Pro",
    "Noto Serif JP", serif;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

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

.hero {
  position: relative;
  min-height: 760px;
  height: 100svh;
  overflow: hidden;
  isolation: isolate;
  color: var(--ink);
  background: var(--sea);
}

.hero-sea,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-sea {
  z-index: -3;
  background-image: url("../sea-4k.webp");
  background-position: center;
  background-size: cover;
  transform: scale(1.04);
  animation: sea-breathe 18s ease-in-out infinite alternate;
}

.hero-shade {
  z-index: -2;
  background:
    radial-gradient(
      circle at 48% 51%,
      rgba(3, 52, 88, 0.46) 0,
      rgba(3, 52, 88, 0.18) 32%,
      transparent 62%
    ),
    linear-gradient(
      180deg,
      rgba(0, 35, 61, 0.38) 0%,
      rgba(2, 56, 91, 0.05) 32%,
      rgba(0, 40, 69, 0.26) 100%
    );
}

.site-header {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 0;
  display: flex;
  align-items: center;
  width: 100%;
  padding: clamp(22px, 2.7vw, 42px) clamp(24px, 4.2vw, 70px);
  gap: 28px;
}

.site-logo {
  display: block;
  flex: 0 0 auto;
  width: clamp(205px, 20vw, 317px);
  transition: opacity 180ms ease;
}

.site-logo:hover {
  opacity: 0.78;
}

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

.global-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  margin-left: auto;
  gap: clamp(15px, 1.8vw, 30px);
  font-family:
    "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
  font-size: clamp(12px, 0.84vw, 15px);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-shadow: 0 1px 10px rgba(0, 31, 54, 0.72);
}

.global-nav a {
  position: relative;
  padding: 8px 0;
  white-space: nowrap;
}

.global-nav a::after {
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 1px;
  content: "";
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 220ms ease;
}

.global-nav a:hover::after,
.global-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.motion-toggle {
  display: none;
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  padding: 0;
  place-items: center;
  border: 0;
  border-radius: 50%;
  color: var(--navy);
  background: transparent;
  cursor: pointer;
}

.motion-toggle__icon {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 50%;
  color: var(--navy);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 8px 30px rgba(0, 36, 62, 0.16);
  font-family: Arial, sans-serif;
  font-size: 10px;
  line-height: 1;
  transition: transform 180ms ease, background 180ms ease;
}

.motion-toggle:hover .motion-toggle__icon,
.motion-toggle:focus-visible .motion-toggle__icon {
  background: #fff;
  transform: scale(1.06);
}

.menu-toggle,
.mobile-menu {
  display: none;
}

.moving-gallery {
  position: absolute;
  z-index: 1;
  inset: 0;
  pointer-events: none;
}

.visual-lane {
  position: absolute;
  left: -10vw;
  width: 120vw;
  overflow: hidden;
}

.visual-lane--top {
  top: 12%;
  opacity: 0.9;
}

.visual-lane--middle {
  top: 38%;
}

.visual-lane--bottom {
  top: 70%;
  opacity: 0.93;
}

.visual-track {
  --gap: clamp(34px, 4.8vw, 86px);
  display: flex;
  width: max-content;
  will-change: transform;
}

.visual-lane--top .visual-track {
  animation: rail-left 58s linear infinite;
}

.visual-lane--middle .visual-track {
  animation: rail-right 64s linear infinite;
}

.visual-lane--bottom .visual-track {
  animation: rail-left 72s linear infinite;
}

.visual-group {
  display: flex;
  align-items: center;
  gap: var(--gap);
  padding-right: var(--gap);
}

.floating-image {
  position: relative;
  flex: 0 0 auto;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.68);
  border-radius: clamp(18px, 1.7vw, 30px);
  background: rgba(255, 255, 255, 0.24);
  box-shadow:
    0 24px 60px rgba(0, 45, 77, 0.26),
    inset 0 0 0 1px rgba(255, 255, 255, 0.16);
}

.floating-image::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.15),
    transparent 42%
  );
}

.floating-image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92) contrast(0.98);
}

.floating-image--small {
  width: clamp(145px, 12vw, 220px);
  height: clamp(98px, 8vw, 146px);
}

.floating-image--medium {
  width: clamp(220px, 18vw, 330px);
  height: clamp(145px, 12vw, 220px);
}

.floating-image--large {
  width: clamp(290px, 24vw, 440px);
  height: clamp(185px, 15vw, 276px);
}

.floating-image--wide {
  width: clamp(300px, 27vw, 500px);
  height: clamp(150px, 13.5vw, 250px);
}

.floating-image--tall {
  width: clamp(180px, 15vw, 270px);
  height: clamp(240px, 20vw, 370px);
}

.hero-copy {
  position: absolute;
  z-index: 4;
  top: 51%;
  left: 50%;
  width: min(53vw, 720px);
  text-align: center;
  transform: translate(-50%, -50%);
  filter: drop-shadow(0 5px 18px rgba(0, 31, 56, 0.62));
}

.hero-copy::before {
  position: absolute;
  z-index: -1;
  top: 50%;
  left: 50%;
  width: 120%;
  height: 160%;
  content: "";
  background: radial-gradient(
    ellipse at center,
    rgba(0, 51, 86, 0.56),
    rgba(0, 57, 92, 0.18) 52%,
    transparent 74%
  );
  transform: translate(-50%, -50%);
}

.hero-copy__eyebrow {
  margin: 0 0 clamp(15px, 2vh, 26px);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(10px, 0.8vw, 14px);
  letter-spacing: 0.36em;
}

.hero-copy__title {
  display: block;
  width: 100%;
  height: auto;
}

.hero-copy__lead {
  margin: clamp(15px, 2.4vh, 28px) 0 0;
  font-size: clamp(14px, 1.25vw, 20px);
  line-height: 2;
  letter-spacing: 0.15em;
}

.scroll-cue {
  position: absolute;
  z-index: 5;
  bottom: 24px;
  left: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.9);
  font-family: Arial, sans-serif;
  font-size: 9px;
  letter-spacing: 0.25em;
  transform: translateX(-50%);
}

.scroll-cue i {
  position: relative;
  display: block;
  width: 1px;
  height: 48px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.35);
}

.scroll-cue i::after {
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 68%;
  content: "";
  background: #fff;
  animation: scroll-line 2.2s ease-in-out infinite;
}

.hero--paused .visual-track,
.hero--paused .hero-sea,
.hero--paused .scroll-cue i::after {
  animation-play-state: paused;
}

.section-kicker {
  margin: 0 0 24px;
  color: #4a97b4;
  font-family: Arial, sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.34em;
}

.section-kicker--light {
  color: #9ed6e7;
}

.arrow-link {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  width: min(100%, 290px);
  min-height: 62px;
  padding: 8px 10px 8px 27px;
  border: 1px solid rgba(21, 73, 100, 0.2);
  border-radius: 999px;
  background: #fff;
  font-family:
    "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition:
    color 200ms ease,
    background 200ms ease,
    transform 200ms ease;
}

.arrow-link i {
  display: grid;
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: #164c6b;
  font-family: Arial, sans-serif;
  font-size: 17px;
  font-style: normal;
  transition: transform 200ms ease;
}

.arrow-link:hover,
.arrow-link:focus-visible {
  color: #fff;
  background: #164c6b;
  transform: translateY(-2px);
}

.arrow-link:hover i,
.arrow-link:focus-visible i {
  color: #164c6b;
  background: #fff;
  transform: translateX(2px);
}

.arrow-link--light {
  border-color: rgba(255, 255, 255, 0.45);
  color: #113e59;
}

.story-section {
  position: relative;
  overflow: hidden;
  padding: clamp(120px, 13vw, 220px) 0 clamp(110px, 12vw, 190px);
  background:
    radial-gradient(circle at 20% 12%, rgba(255, 255, 255, 0.95) 0 4%, transparent 18%),
    linear-gradient(145deg, #e8f7fb 0%, #f7fbf4 48%, #e1f4fa 100%);
}

.story-section::before,
.story-section::after {
  position: absolute;
  width: 0;
  height: 0;
  content: "";
  opacity: 0.55;
  filter: blur(1px);
}

.story-section::before {
  top: 9%;
  left: 7%;
  border-right: 18px solid transparent;
  border-bottom: 35px solid rgba(255, 255, 255, 0.92);
  border-left: 18px solid transparent;
  transform: rotate(18deg);
}

.story-section::after {
  right: 8%;
  bottom: 16%;
  border-right: 25px solid transparent;
  border-bottom: 48px solid rgba(255, 255, 255, 0.88);
  border-left: 25px solid transparent;
  transform: rotate(-21deg);
}

.section-rail {
  position: absolute;
  top: 16%;
  right: 3.2%;
  color: rgba(16, 71, 99, 0.52);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 10px;
  letter-spacing: 0.28em;
  writing-mode: vertical-rl;
}

.story-shell {
  display: grid;
  width: min(1180px, calc(100% - 64px));
  margin: 0 auto;
  grid-template-columns: 0.82fr 1.18fr;
  align-items: center;
  gap: clamp(70px, 9vw, 150px);
}

.story-copy h2,
.activity-content h2,
.publication-heading h2,
.news-heading h2 {
  margin: 0;
  color: #124a69;
  font-size: clamp(38px, 4.1vw, 66px);
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.09em;
}

.headline-line {
  display: block;
  white-space: nowrap;
}

.story-copy h2 {
  font-size: clamp(36px, 3.3vw, 54px);
  letter-spacing: 0.06em;
}

.activity-content h2 {
  font-size: clamp(35px, 3.15vw, 52px);
  letter-spacing: 0.055em;
}

.story-lead {
  margin: 42px 0 24px;
  color: #134964;
  font-size: clamp(17px, 1.25vw, 21px);
  line-height: 2.05;
  letter-spacing: 0.1em;
}

.story-copy > p:not(.section-kicker, .story-lead) {
  max-width: 520px;
  margin: 0;
  font-family:
    "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
  font-size: 14px;
  line-height: 2.35;
  letter-spacing: 0.055em;
}

.story-copy .arrow-link {
  margin-top: 42px;
}

.story-visual {
  position: relative;
  min-height: 650px;
}

.story-visual figure {
  position: absolute;
  margin: 0;
  overflow: hidden;
  box-shadow: 0 20px 48px rgba(18, 75, 103, 0.09);
}

.story-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.story-visual__main {
  top: 0;
  right: 0;
  width: 78%;
  height: 78%;
  border-radius: 48% 48% 18px 18px;
}

.story-visual__sub {
  bottom: 0;
  left: 0;
  width: 54%;
  height: 38%;
  border: 10px solid rgba(238, 249, 251, 0.92);
  border-radius: 24px;
}

.story-visual__caption {
  position: absolute;
  right: -25px;
  bottom: 4%;
  margin: 0;
  color: #336b85;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 9px;
  letter-spacing: 0.24em;
  writing-mode: vertical-rl;
}

.fact-strip {
  display: grid;
  width: min(920px, calc(100% - 64px));
  margin: clamp(95px, 11vw, 160px) auto 0;
  grid-template-columns: 1fr;
  border-top: 1px solid rgba(18, 74, 105, 0.18);
}

.fact-strip > div {
  display: grid;
  min-height: 330px;
  padding: 40px clamp(24px, 4vw, 52px);
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 1.1fr);
  align-items: center;
  border-bottom: 1px solid rgba(18, 74, 105, 0.18);
  gap: clamp(28px, 5vw, 64px);
}

.fact-strip__content {
  min-width: 0;
}

.fact-strip__headline {
  display: flex;
  align-items: baseline;
  gap: clamp(13px, 2vw, 24px);
}

.fact-strip__headline--founding {
  gap: clamp(8px, 1.2vw, 14px);
  white-space: nowrap;
}

.fact-strip__headline--founding strong {
  font-size: clamp(64px, 7.2vw, 100px);
  letter-spacing: -0.04em;
}

.fact-strip__item--reverse .fact-strip__content {
  order: 2;
}

.fact-strip__item--reverse .fact-strip__visual {
  order: 1;
}

.fact-strip strong {
  color: #155373;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(68px, 8vw, 112px);
  font-weight: 400;
  line-height: 1;
}

.fact-strip__headline > span {
  color: #155373;
  font-family:
    "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
  font-size: clamp(14px, 1.15vw, 18px);
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: 0.08em;
}

.fact-strip__description {
  max-width: 34em;
  margin: clamp(18px, 2.2vw, 28px) 0 0;
  color: #31596d;
  font-family:
    "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
  font-size: clamp(13px, 1vw, 15px);
  font-weight: 400;
  line-height: 2;
  letter-spacing: 0.06em;
}

.fact-strip__visual {
  display: grid;
  margin: 0;
  place-items: center;
}

.fact-strip__visual img {
  display: block;
  width: 100%;
  max-width: 430px;
  height: auto;
}

.fact-strip > .fact-strip__message {
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
}

.fact-strip__message strong {
  font-family:
    "Yu Mincho", "Hiragino Mincho ProN", "Hiragino Mincho Pro",
    "Noto Serif JP", serif;
  font-size: clamp(28px, 2.5vw, 36px);
  font-weight: 500;
  line-height: 1.7;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.village-panorama {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: #d7e9ed;
}

.village-panorama img {
  display: block;
  width: 100%;
  height: auto;
}

.research-section {
  position: relative;
  overflow: hidden;
  padding: clamp(110px, 12vw, 190px) max(32px, calc((100vw - 1280px) / 2));
  color: #f5fbff;
  background:
    radial-gradient(circle at 86% 3%, rgba(78, 169, 207, 0.25), transparent 28%),
    #083d60;
}

.research-section::before {
  position: absolute;
  top: -0.16em;
  right: -0.03em;
  content: "RESEARCH";
  color: rgba(255, 255, 255, 0.035);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(120px, 17vw, 300px);
  line-height: 1;
  letter-spacing: -0.04em;
}

.research-heading {
  position: relative;
  z-index: 1;
  display: flex;
  width: min(1180px, 100%);
  margin: 0 auto clamp(70px, 8vw, 120px);
  align-items: flex-end;
  justify-content: space-between;
  gap: 60px;
}

.research-heading h2 {
  margin: 0;
  font-size: clamp(38px, 4.1vw, 66px);
  font-weight: 500;
  line-height: 1.48;
  letter-spacing: 0.09em;
}

.research-heading > p {
  max-width: 390px;
  margin: 0 0 10px;
  font-family:
    "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
  font-size: 14px;
  line-height: 2.2;
  letter-spacing: 0.05em;
}

.research-grid {
  position: relative;
  z-index: 1;
  display: grid;
  width: min(1280px, 100%);
  margin: 0 auto;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 2.6vw, 42px);
}

.research-card {
  position: relative;
  overflow: hidden;
  border-radius: 180px 180px 22px 22px;
  color: #173f58;
  background: #f5faf8;
  transition: transform 260ms ease;
}

.research-card:nth-child(2) {
  margin-top: 58px;
}

.research-card:hover,
.research-card:focus-visible {
  transform: translateY(-10px);
}

.research-card figure {
  height: clamp(250px, 24vw, 380px);
  margin: 0;
  overflow: hidden;
}

.research-card figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.78);
  transition: transform 500ms ease;
}

.research-card:hover figure img,
.research-card:focus-visible figure img {
  transform: scale(1.045);
}

.research-card__body {
  position: relative;
  min-height: 290px;
  padding: 34px clamp(26px, 2.5vw, 42px) 40px;
}

.research-card__number {
  margin: 0 0 15px;
  color: #4899b8;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 13px;
  letter-spacing: 0.14em;
}

.research-card h3 {
  margin: 0;
  font-size: clamp(23px, 2vw, 31px);
  font-weight: 500;
  letter-spacing: 0.08em;
}

.research-card__body > p:not(.research-card__number) {
  margin: 22px 0 0;
  font-family:
    "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
  font-size: 13px;
  line-height: 2;
}

.research-card__body > span {
  position: absolute;
  right: 28px;
  bottom: 26px;
  display: grid;
  width: 43px;
  height: 43px;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: #164c6b;
  font-family: Arial, sans-serif;
}

.activity-section {
  position: relative;
  overflow: hidden;
  padding: clamp(130px, 14vw, 220px) 0;
  background:
    linear-gradient(rgba(240, 248, 241, 0.88), rgba(234, 247, 247, 0.94)),
    url("../sea-4k.webp") center / cover fixed;
}

.activity-word {
  position: absolute;
  top: 1.5%;
  left: -0.04em;
  color: rgba(24, 84, 111, 0.055);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(100px, 17vw, 270px);
  line-height: 1;
  letter-spacing: -0.04em;
}

.activity-shell {
  position: relative;
  z-index: 1;
  display: grid;
  width: min(1280px, calc(100% - 64px));
  margin: 0 auto;
  grid-template-columns: 1.08fr 0.92fr;
  align-items: center;
  gap: clamp(75px, 10vw, 160px);
}

.activity-collage {
  position: relative;
  min-height: 760px;
}

.activity-collage figure {
  position: absolute;
  margin: 0;
  overflow: hidden;
  box-shadow: 0 22px 50px rgba(15, 74, 100, 0.09);
}

.activity-collage img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.activity-collage__large {
  top: 0;
  left: 0;
  width: 77%;
  height: 76%;
  border-radius: 28px 28px 48% 48%;
}

.activity-collage__small {
  right: 0;
  bottom: 0;
  width: 55%;
  height: 40%;
  border: 10px solid #eef8f4;
  border-radius: 24px;
}

.activity-collage > p {
  position: absolute;
  bottom: 4%;
  left: 3%;
  margin: 0;
  color: #3d829e;
  font-family: Arial, sans-serif;
  font-size: 9px;
  letter-spacing: 0.3em;
  writing-mode: vertical-rl;
}

.activity-list {
  margin: 56px 0 44px;
  border-top: 1px solid rgba(18, 74, 105, 0.2);
}

.activity-list article {
  padding: 30px 0;
  border-bottom: 1px solid rgba(18, 74, 105, 0.2);
}

.activity-list h3 {
  margin: 0;
  color: #174c69;
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 0.07em;
}

.activity-list span {
  display: block;
  margin-top: 13px;
  font-family:
    "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
  font-size: 13px;
  line-height: 1.9;
}

.publication-section {
  padding: clamp(110px, 12vw, 190px) max(32px, calc((100vw - 1200px) / 2));
  background: #f9f7ee;
}

.publication-heading {
  display: grid;
  width: min(1160px, 100%);
  margin: 0 auto clamp(70px, 7vw, 110px);
  grid-template-columns: 1fr 1fr;
  align-items: end;
  column-gap: 80px;
}

.publication-heading .section-kicker {
  grid-column: 1 / -1;
}

.publication-heading > p:last-child {
  margin: 0 0 12px;
  font-family:
    "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
  font-size: 14px;
  line-height: 2.15;
  letter-spacing: 0.04em;
}

.publication-showcase {
  display: grid;
  width: min(1160px, 100%);
  margin: 0 auto;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 26px;
}

.publication-feature {
  display: grid;
  min-height: 500px;
  padding: clamp(35px, 4vw, 62px);
  grid-template-columns: 0.72fr 1.28fr;
  align-items: center;
  gap: clamp(30px, 4vw, 60px);
  border-radius: 30px;
  color: #f5fbff;
  background:
    radial-gradient(circle at 20% 20%, rgba(98, 185, 213, 0.35), transparent 33%),
    #0c496a;
  transition: transform 240ms ease;
}

.publication-feature:hover,
.publication-feature:focus-visible {
  transform: translateY(-6px);
}

.publication-feature__cover {
  position: relative;
  margin: 0;
  padding: 13px;
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 18px 42px rgba(0, 28, 46, 0.16);
  transform: rotate(-3deg);
}

.publication-feature__cover img {
  display: block;
  width: 100%;
  height: auto;
}

.publication-feature > div:last-child > p,
.publication-links span {
  margin: 0 0 20px;
  color: #94d1e5;
  font-family: Arial, sans-serif;
  font-size: 10px;
  letter-spacing: 0.25em;
}

.publication-feature h3 {
  margin: 0;
  font-size: clamp(29px, 3vw, 46px);
  font-weight: 500;
  line-height: 1.45;
  letter-spacing: 0.08em;
}

.publication-feature > div:last-child > span {
  display: flex;
  margin-top: 34px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-family:
    "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
  font-size: 13px;
  line-height: 1.8;
}

.publication-feature i,
.publication-links i {
  display: grid;
  flex: 0 0 auto;
  width: 43px;
  height: 43px;
  place-items: center;
  border-radius: 50%;
  font-family: Arial, sans-serif;
  font-style: normal;
}

.publication-feature i {
  color: #124a69;
  background: #fff;
}

.publication-links {
  display: grid;
  gap: 26px;
}

.publication-links a {
  position: relative;
  display: flex;
  min-height: 237px;
  padding: 38px;
  flex-direction: column;
  justify-content: flex-end;
  border: 1px solid rgba(18, 74, 105, 0.15);
  border-radius: 28px;
  background: #fff;
  transition:
    color 220ms ease,
    background 220ms ease,
    transform 220ms ease;
}

.publication-links a:hover,
.publication-links a:focus-visible {
  color: #fff;
  background: #397f98;
  transform: translateY(-4px);
}

.publication-links a:hover span,
.publication-links a:focus-visible span {
  color: #c5e8f2;
}

.publication-links h3 {
  margin: 0;
  font-size: clamp(21px, 2vw, 29px);
  font-weight: 500;
  letter-spacing: 0.06em;
}

.publication-links i {
  position: absolute;
  top: 26px;
  right: 26px;
  color: #fff;
  background: #164c6b;
}

.publication-links a:hover i,
.publication-links a:focus-visible i {
  color: #164c6b;
  background: #fff;
}

.news-section {
  display: grid;
  padding: clamp(100px, 11vw, 170px) max(32px, calc((100vw - 1160px) / 2));
  grid-template-columns: 0.38fr 0.62fr;
  column-gap: 90px;
  background: #fff;
}

.news-heading h2 {
  font-size: clamp(38px, 3.5vw, 55px);
}

.news-list {
  border-top: 1px solid rgba(18, 74, 105, 0.2);
}

.news-list a {
  position: relative;
  display: grid;
  min-height: 98px;
  padding: 26px 55px 26px 0;
  grid-template-columns: 125px 1fr;
  align-items: center;
  border-bottom: 1px solid rgba(18, 74, 105, 0.2);
  gap: 30px;
  font-family:
    "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
  font-size: 14px;
  line-height: 1.7;
}

.news-list time {
  color: #5797af;
  font-family: Arial, sans-serif;
  font-size: 11px;
  letter-spacing: 0.08em;
}

.news-list i {
  position: absolute;
  right: 10px;
  font-family: Arial, sans-serif;
  font-style: normal;
  transition: transform 180ms ease;
}

.news-list a:hover i,
.news-list a:focus-visible i {
  transform: translateX(5px);
}

.news-section > .arrow-link {
  margin-top: 44px;
  grid-column: 2;
  justify-self: end;
}

.join-section {
  padding: 0 32px clamp(90px, 9vw, 140px);
  background: #fff;
}

.join-panel {
  position: relative;
  display: grid;
  min-height: 670px;
  max-width: 1440px;
  margin: 0 auto;
  overflow: hidden;
  place-items: center;
  border-radius: 34px 34px 220px 34px;
  color: #fff;
  isolation: isolate;
}

.join-panel__image,
.join-panel__shade {
  position: absolute;
  inset: 0;
}

.join-panel__image {
  z-index: -2;
  background: url("../island-forest.webp") center / cover;
  transform: scale(1.02);
}

.join-panel__shade {
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(3, 42, 61, 0.84), rgba(3, 55, 72, 0.36)),
    linear-gradient(0deg, rgba(5, 47, 61, 0.38), transparent);
}

.join-panel__copy {
  width: min(1120px, calc(100% - 80px));
}

.join-panel__copy h2 {
  margin: 0;
  font-size: clamp(39px, 4.6vw, 72px);
  font-weight: 500;
  line-height: 1.48;
  letter-spacing: 0.11em;
}

.join-panel__copy > p:not(.section-kicker) {
  max-width: 550px;
  margin: 32px 0 0;
  font-family:
    "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
  font-size: 14px;
  line-height: 2.1;
  letter-spacing: 0.04em;
}

.join-actions {
  display: flex;
  margin-top: 45px;
  align-items: center;
  gap: 30px;
}

.join-actions > a:last-child {
  border-bottom: 1px solid rgba(255, 255, 255, 0.62);
  font-family:
    "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
  font-size: 13px;
}

.site-footer {
  padding: clamp(80px, 8vw, 120px) max(32px, calc((100vw - 1180px) / 2)) 34px;
  color: #edf8fc;
  background: #073b5a;
}

.site-footer__top {
  display: grid;
  padding-bottom: 75px;
  grid-template-columns: 1fr 1fr auto;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  gap: 55px;
}

.footer-logo {
  width: min(290px, 100%);
}

.footer-logo img {
  display: block;
  width: 100%;
  height: auto;
}

.site-footer__top > p {
  margin: 0;
  font-size: 14px;
  line-height: 2;
  letter-spacing: 0.08em;
}

.site-footer__top > .arrow-link {
  width: 190px;
}

.site-footer__bottom {
  display: flex;
  padding-top: 30px;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  font-family:
    "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
}

.site-footer__bottom nav {
  display: flex;
  gap: 30px;
  font-size: 12px;
}

.site-footer__bottom p {
  margin: 0;
  color: rgba(255, 255, 255, 0.65);
  font-family: Arial, sans-serif;
  font-size: 10px;
}

@keyframes rail-left {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(-50%, 0, 0);
  }
}

@keyframes rail-right {
  from {
    transform: translate3d(-50%, 0, 0);
  }
  to {
    transform: translate3d(0, 0, 0);
  }
}

@keyframes sea-breathe {
  from {
    transform: scale(1.04) translate3d(-0.5%, -0.3%, 0);
  }
  to {
    transform: scale(1.08) translate3d(0.5%, 0.3%, 0);
  }
}

@keyframes scroll-line {
  0% {
    transform: translateY(0);
  }
  70%,
  100% {
    transform: translateY(295%);
  }
}

@media (max-width: 1100px) {
  .site-header {
    z-index: 30;
  }

  .global-nav {
    display: none;
  }

  .motion-toggle {
    margin-left: auto;
  }

  .menu-toggle {
    position: relative;
    z-index: 31;
    display: grid;
    margin-left: auto;
    flex: 0 0 42px;
    width: 42px;
    height: 42px;
    padding: 12px 10px;
    align-content: center;
    border: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 8px 30px rgba(0, 36, 62, 0.16);
    cursor: pointer;
    gap: 4px;
  }

  .menu-toggle > span {
    display: block;
    width: 100%;
    height: 1px;
    background: var(--navy);
    transform-origin: center;
    transition:
      opacity 220ms ease,
      transform 220ms ease;
  }

  .menu-toggle[aria-expanded="true"] > span:nth-child(1) {
    transform: translateY(5px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] > span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle[aria-expanded="true"] > span:nth-child(3) {
    transform: translateY(-5px) rotate(-45deg);
  }

  .mobile-menu {
    position: fixed;
    z-index: 20;
    inset: 0;
    display: flex;
    padding: clamp(112px, 16vh, 150px) clamp(28px, 8vw, 70px) 38px;
    visibility: hidden;
    align-items: stretch;
    flex-direction: column;
    justify-content: space-between;
    opacity: 0;
    color: #f8fcff;
    background:
      radial-gradient(circle at 100% 0%, rgba(74, 151, 180, 0.3), transparent 40%),
      rgba(7, 62, 102, 0.98);
    pointer-events: none;
    transform: translateY(-14px);
    transition:
      visibility 0s linear 320ms,
      opacity 280ms ease,
      transform 320ms ease;
  }

  .mobile-menu.is-open {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
    transition-delay: 0s;
  }

  .mobile-menu__nav {
    display: grid;
    width: min(100%, 560px);
    margin: auto;
    border-top: 1px solid rgba(255, 255, 255, 0.24);
  }

  .mobile-menu__nav a {
    display: flex;
    min-height: 68px;
    padding: 17px 4px;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.24);
    font-size: clamp(18px, 4.8vw, 24px);
    letter-spacing: 0.08em;
  }

  .mobile-menu__nav a::after {
    margin-left: auto;
    content: "→";
    font-family: Arial, sans-serif;
    font-size: 18px;
  }

  .mobile-menu__nav a > span {
    width: 44px;
    color: #9ed6e7;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 10px;
    letter-spacing: 0.12em;
  }

  .mobile-menu > p {
    margin: 32px 0 0;
    text-align: center;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 9px;
    letter-spacing: 0.28em;
  }

  body.mobile-menu-open {
    overflow: hidden;
  }

  .hero-copy {
    width: min(72vw, 680px);
  }

  .story-shell,
  .activity-shell {
    gap: 60px;
  }

  .story-shell {
    grid-template-columns: 0.9fr 1.1fr;
  }

  .story-visual {
    min-height: 560px;
  }

  .research-card__body {
    min-height: 330px;
  }

  .activity-shell {
    grid-template-columns: 0.95fr 1.05fr;
  }

  .activity-collage {
    min-height: 620px;
  }

  .publication-feature {
    grid-template-columns: 0.8fr 1.2fr;
  }

  .site-footer__top {
    grid-template-columns: 1fr 1fr;
  }

  .site-footer__top .arrow-link {
    grid-column: 2;
  }
}

@media (max-width: 640px) {
  .hero {
    min-height: 680px;
  }

  .site-header {
    padding: 20px;
    gap: 9px;
  }

  .site-logo {
    width: min(57vw, 250px);
  }

  .motion-toggle {
    flex-basis: 38px;
    width: 38px;
    height: 38px;
  }

  .menu-toggle {
    flex-basis: 38px;
    width: 38px;
    height: 38px;
    padding: 11px 9px;
  }

  .motion-toggle__icon {
    width: 34px;
    height: 34px;
  }

  .visual-lane {
    left: -34vw;
    width: 168vw;
  }

  .visual-lane--top {
    top: 15%;
  }

  .visual-lane--middle {
    top: 41%;
  }

  .visual-lane--bottom {
    top: 70%;
  }

  .visual-track {
    --gap: 25px;
  }

  .floating-image {
    border-radius: 18px;
  }

  .floating-image--small {
    width: 120px;
    height: 82px;
  }

  .floating-image--medium {
    width: 180px;
    height: 120px;
  }

  .floating-image--large {
    width: 245px;
    height: 154px;
  }

  .floating-image--wide {
    width: 258px;
    height: 130px;
  }

  .floating-image--tall {
    width: 150px;
    height: 200px;
  }

  .hero-copy {
    top: 53%;
    width: 86vw;
  }

  .hero-copy__eyebrow {
    font-size: 9px;
    letter-spacing: 0.22em;
  }

  .hero-copy__lead {
    font-size: 13px;
    line-height: 1.9;
    letter-spacing: 0.1em;
  }

  .section-kicker {
    margin-bottom: 18px;
    font-size: 9px;
  }

  .section-rail {
    display: none;
  }

  .story-section {
    padding: 95px 0 90px;
  }

  .story-shell,
  .activity-shell {
    width: calc(100% - 42px);
    grid-template-columns: 1fr;
    gap: 60px;
  }

  .story-copy h2,
  .activity-content h2,
  .publication-heading h2,
  .news-heading h2 {
    font-size: 34px;
    line-height: 1.55;
  }

  .story-copy h2,
  .activity-content h2 {
    font-size: clamp(29px, 8.3vw, 34px);
    letter-spacing: 0.035em;
  }

  .story-lead {
    margin-top: 30px;
    font-size: 16px;
  }

  .desktop-only {
    display: none;
  }

  .story-copy > p:not(.section-kicker, .story-lead) {
    font-size: 13px;
    line-height: 2.15;
  }

  .story-visual {
    min-height: 460px;
  }

  .story-visual__main {
    width: 88%;
    height: 76%;
    border-radius: 44% 44% 16px 16px;
  }

  .story-visual__sub {
    width: 58%;
    height: 38%;
    border-width: 7px;
  }

  .fact-strip {
    width: calc(100% - 42px);
    margin-top: 85px;
  }

  .fact-strip > div {
    min-height: auto;
    padding: 36px 4px 40px;
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .fact-strip > .fact-strip__message {
    grid-template-columns: 1fr;
  }

  .fact-strip__content,
  .fact-strip__item--reverse .fact-strip__content {
    order: 1;
  }

  .fact-strip__visual,
  .fact-strip__item--reverse .fact-strip__visual {
    order: 2;
  }

  .fact-strip__headline {
    gap: 9px;
  }

  .fact-strip strong {
    font-size: clamp(48px, 15vw, 64px);
  }

  .fact-strip__headline > span {
    font-size: 14px;
  }

  .fact-strip__description {
    margin-top: 16px;
    font-size: 13px;
    line-height: 1.9;
  }

  .fact-strip__message strong {
    font-size: clamp(21px, 6.4vw, 28px);
    white-space: normal;
  }

  .fact-strip__visual img {
    max-width: 360px;
  }

  .research-section {
    padding: 95px 21px 105px;
  }

  .research-heading {
    display: block;
    margin-bottom: 55px;
  }

  .research-heading h2 {
    font-size: 34px;
  }

  .research-heading > p {
    margin-top: 30px;
    font-size: 13px;
  }

  .research-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .research-card,
  .research-card:nth-child(2) {
    margin-top: 0;
    border-radius: 150px 150px 20px 20px;
  }

  .research-card figure {
    height: 310px;
  }

  .research-card__body {
    min-height: 255px;
    padding: 30px 27px 36px;
  }

  .research-card__body > p:not(.research-card__number) {
    padding-right: 24px;
  }

  .activity-section {
    padding: 110px 0 100px;
    background-attachment: scroll;
  }

  .activity-collage {
    min-height: 520px;
  }

  .activity-collage__large {
    width: 84%;
    height: 74%;
  }

  .activity-collage__small {
    width: 61%;
    height: 39%;
    border-width: 7px;
  }

  .activity-list {
    margin-top: 42px;
  }

  .activity-list article {
    padding: 25px 0;
  }

  .activity-list h3 {
    font-size: 18px;
  }

  .publication-section {
    padding: 95px 21px 105px;
  }

  .publication-heading {
    display: block;
    margin-bottom: 55px;
  }

  .publication-heading > p:last-child {
    margin-top: 28px;
    font-size: 13px;
  }

  .publication-showcase {
    grid-template-columns: 1fr;
  }

  .publication-feature {
    min-height: auto;
    padding: 42px 28px;
    grid-template-columns: 0.65fr 1.35fr;
    gap: 25px;
    border-radius: 24px;
  }

  .publication-feature h3 {
    font-size: 25px;
  }

  .publication-feature > div:last-child > span {
    display: block;
    margin-top: 20px;
    font-size: 11px;
  }

  .publication-feature > div:last-child > span i {
    margin-top: 18px;
  }

  .publication-links a {
    min-height: 185px;
    padding: 30px;
  }

  .news-section {
    display: block;
    padding: 95px 21px;
  }

  .news-list {
    margin-top: 43px;
  }

  .news-list a {
    display: block;
    min-height: 112px;
    padding: 23px 45px 23px 0;
  }

  .news-list time {
    display: block;
    margin-bottom: 10px;
  }

  .news-list i {
    top: 50%;
    transform: translateY(-50%);
  }

  .news-list a:hover i,
  .news-list a:focus-visible i {
    transform: translate(5px, -50%);
  }

  .news-section > .arrow-link {
    margin-top: 35px;
  }

  .join-section {
    padding: 0 16px 80px;
  }

  .join-panel {
    min-height: 650px;
    border-radius: 24px 24px 110px 24px;
  }

  .join-panel__copy {
    width: calc(100% - 46px);
  }

  .join-panel__copy h2 {
    font-size: 34px;
    line-height: 1.55;
  }

  .join-panel__copy > p:not(.section-kicker) {
    font-size: 13px;
  }

  .join-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-footer {
    padding: 76px 21px 28px;
  }

  .site-footer__top {
    display: block;
    padding-bottom: 55px;
  }

  .footer-logo {
    width: 250px;
  }

  .site-footer__top > p {
    margin: 35px 0;
    font-size: 13px;
  }

  .site-footer__bottom {
    display: block;
    padding-top: 27px;
  }

  .site-footer__bottom nav {
    display: grid;
    margin-bottom: 42px;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
  }
}

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

  .hero-sea,
  .visual-track,
  .scroll-cue i::after {
    animation: none;
  }

  .visual-lane--middle .visual-track {
    transform: translate3d(-20%, 0, 0);
  }
}