@charset "UTF-8";

:root {
  --paper: #f4f3ef;
  --paper-soft: #ecebe6;
  --white: #ffffff;
  --ink: #101114;
  --ink-soft: #4f5158;
  --line: rgba(16, 17, 20, 0.16);
  --line-light: rgba(255, 255, 255, 0.18);
  --blue: #304bff;
  --blue-deep: #2038d9;
  --blue-pale: #e2e6ff;
  --max-width: 1320px;
  --header-height: 88px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "Helvetica Neue", "Hiragino Kaku Gothic ProN", "Yu Gothic",
    YuGothic, Meiryo, sans-serif;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.9;
  letter-spacing: 0.04em;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

::selection {
  color: var(--white);
  background: var(--blue);
}

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

button,
input,
textarea,
select {
  color: inherit;
  font: inherit;
}

button {
  border: 0;
}

svg {
  display: block;
}

.shell {
  width: min(calc(100% - 96px), var(--max-width));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  color: var(--white);
  background: var(--ink);
  transform: translateY(-150%);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.cursor-light {
  position: fixed;
  z-index: 0;
  top: 0;
  left: 0;
  width: 460px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(48, 75, 255, 0.1), transparent 67%);
  pointer-events: none;
  transform: translate3d(calc(var(--cursor-x, 50vw) - 50%), calc(var(--cursor-y, 30vh) - 50%), 0);
  transition: opacity 0.3s ease;
}

.site-header {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  height: var(--header-height);
  border-bottom: 1px solid transparent;
  transition: height 0.4s var(--ease-out), background-color 0.4s ease,
    border-color 0.4s ease;
}

.site-header::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 1px;
  background: var(--blue);
  content: "";
  transform: scaleX(var(--scroll-progress, 0));
  transform-origin: left;
}

.site-header.is-scrolled {
  height: 72px;
  border-color: rgba(16, 17, 20, 0.1);
  background: rgba(244, 243, 239, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.header-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 64px), 1440px);
  height: 100%;
  margin-inline: auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  width: max-content;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 35px;
  height: 35px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.brand-name {
  display: grid;
  gap: 3px;
}

.brand-name span:first-child {
  font-size: 14px;
  letter-spacing: 0.005em;
}

.brand-name span:last-child {
  color: var(--ink-soft);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.055em;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: clamp(22px, 2.5vw, 44px);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.08em;
}

.desktop-nav a {
  position: relative;
  padding-block: 8px;
}

.desktop-nav a::after {
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 1px;
  background: var(--blue);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s var(--ease-out);
}

.desktop-nav a:hover::after,
.desktop-nav a.is-active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-button {
  position: relative;
  display: none;
  width: 46px;
  height: 46px;
  padding: 0;
  background: transparent;
  cursor: pointer;
}

.menu-button span {
  display: block;
  width: 25px;
  height: 1px;
  margin: 7px auto;
  background: currentColor;
  transition: transform 0.35s var(--ease-out);
}

.site-header.menu-active .menu-button span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.site-header.menu-active .menu-button span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.mobile-menu {
  position: fixed;
  z-index: 1;
  inset: 0;
  display: none;
  padding: calc(var(--header-height) + 48px) 32px 32px;
  color: var(--white);
  background: var(--ink);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-18px);
  transition: opacity 0.35s ease, visibility 0.35s ease, transform 0.45s var(--ease-out);
  overflow-y: auto;
}

.site-header.menu-active .mobile-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.section {
  position: relative;
  z-index: 1;
  padding-block: clamp(112px, 12vw, 190px);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(70px, 0.9fr) 5fr;
  align-items: center;
  margin-bottom: clamp(64px, 8vw, 112px);
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.section-number,
.section-kicker {
  margin: 0;
}

.section-kicker {
  display: flex;
  align-items: center;
  gap: 24px;
}

.section-kicker::before {
  width: 54px;
  height: 1px;
  background: currentColor;
  content: "";
  opacity: 0.46;
}

.section-heading--light {
  color: rgba(255, 255, 255, 0.6);
}

.display-copy {
  margin: 0;
  font-size: clamp(38px, 5.2vw, 76px);
  font-weight: 530;
  line-height: 1.34;
  letter-spacing: -0.055em;
}

/* ファーストビュー */
.hero {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 100svh;
  padding-top: var(--header-height);
  overflow: hidden;
  background:
    linear-gradient(rgba(16, 17, 20, 0.037) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 17, 20, 0.037) 1px, transparent 1px),
    var(--paper);
  background-position: center;
  background-size: 88px 88px;
}

.hero::before {
  position: absolute;
  z-index: -1;
  top: -25%;
  right: -15%;
  width: 75vw;
  height: 75vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(107, 126, 255, 0.14), transparent 65%);
  content: "";
  filter: blur(8px);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(420px, 0.98fr);
  align-items: center;
  min-height: calc(100svh - var(--header-height) - 78px);
  padding-block: 54px 32px;
}

.hero-copy {
  position: relative;
  z-index: 2;
  padding-left: clamp(0px, 2vw, 28px);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 34px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.18em;
}

.eyebrow::before {
  width: 32px;
  height: 1px;
  background: currentColor;
  content: "";
}

.hero-title {
  margin: 0;
  font-size: clamp(44px, 4.25vw, 66px);
  font-weight: 550;
  line-height: 1.15;
  letter-spacing: -0.065em;
}

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

.mobile-title-break {
  display: none;
}

.title-line--offset {
  position: relative;
  z-index: 3;
  margin-left: clamp(28px, 6vw, 94px);
  color: var(--blue);
}

.hero-lead {
  margin: 46px 0 0;
  color: var(--ink-soft);
  font-size: clamp(15px, 1.25vw, 18px);
  line-height: 2;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 38px;
  margin-top: 46px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 24px;
  min-width: 208px;
  padding-bottom: 13px;
  border-bottom: 1px solid currentColor;
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.11em;
  transition: color 0.25s ease;
}

.text-link span {
  flex: 1;
}

.text-link svg {
  width: 34px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.2;
  transition: transform 0.4s var(--ease-out);
}

.text-link:hover {
  color: var(--blue);
}

.text-link:hover svg {
  transform: translateX(7px);
}

.hero-domain {
  color: #777980;
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.14em;
}

.hero-visual {
  position: relative;
  justify-self: end;
  width: min(48vw, 640px);
  aspect-ratio: 1;
  margin-right: clamp(-80px, -3vw, -24px);
}

.visual-halo {
  position: absolute;
  inset: 14%;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.66);
  box-shadow: 0 34px 110px rgba(25, 37, 113, 0.09);
  filter: blur(0.2px);
}

.space-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  stroke: rgba(16, 17, 20, 0.14);
  stroke-width: 0.8;
}

.space-lines__arc {
  stroke: var(--blue);
  stroke-dasharray: 6 14;
  stroke-width: 1.4;
  animation: orbit-dash 24s linear infinite;
}

.cube-stage {
  position: absolute;
  inset: 15% 14% 12%;
  filter: drop-shadow(0 30px 30px rgba(48, 75, 255, 0.13));
  transform: translate3d(var(--parallax-x, 0), var(--parallax-y, 0), 0);
  transition: transform 0.25s ease-out;
}

.main-cube {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.cube-face {
  transform-origin: center;
  animation: cube-breathe 7s var(--ease-in-out) infinite alternate;
}

.cube-face--right {
  animation-delay: -2.3s;
}

.cube-face--top {
  animation-delay: -4.6s;
}

.cube-outline,
.cube-cut {
  fill: none;
  stroke: url(#cubeGradient);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}

.cube-cut {
  stroke: rgba(48, 75, 255, 0.55);
  stroke-width: 1;
}

.core-mark {
  position: absolute;
  top: 51.5%;
  left: 50%;
  display: grid;
  width: clamp(42px, 5vw, 66px);
  aspect-ratio: 1;
  place-items: center;
  color: var(--white);
  background: var(--blue);
  border-radius: 50%;
  box-shadow: 0 15px 40px rgba(48, 75, 255, 0.35);
  font-family: "Yu Mincho", YuMincho, "Hiragino Mincho ProN", serif;
  font-size: clamp(13px, 1.5vw, 20px);
  white-space: nowrap;
  transform: translate(-50%, -50%);
  animation: core-pulse 4.4s ease-in-out infinite;
}

.floating-chip {
  position: absolute;
  display: grid;
  min-width: 74px;
  min-height: 36px;
  padding: 6px 14px;
  place-items: center;
  border: 1px solid rgba(16, 17, 20, 0.16);
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.66);
  box-shadow: 0 12px 30px rgba(16, 17, 20, 0.04);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: chip-float 5s ease-in-out infinite alternate;
}

.floating-chip--one {
  top: 21%;
  left: 4%;
}

.floating-chip--two {
  top: 17%;
  right: 6%;
  animation-delay: -1.7s;
}

.floating-chip--three {
  right: 0;
  bottom: 24%;
  animation-delay: -3.2s;
}

.visual-coordinate {
  position: absolute;
  color: #898a90;
  font-size: 9px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.12em;
}

.visual-coordinate--top {
  top: 7%;
  left: 44%;
}

.visual-coordinate--side {
  top: 47%;
  right: -2%;
  transform: rotate(90deg);
}

.visual-caption {
  position: absolute;
  bottom: 7%;
  left: 10%;
  display: flex;
  align-items: center;
  gap: 18px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.12em;
}

.visual-caption span {
  display: grid;
  width: 27px;
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--blue);
  font-size: 8px;
}

.hero-footer {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding-bottom: 26px;
  color: #7b7c82;
  font-size: 9px;
  font-weight: 650;
  letter-spacing: 0.14em;
}

.scroll-cue {
  display: flex;
  align-items: center;
  gap: 13px;
}

.scroll-cue i {
  position: relative;
  display: block;
  width: 1px;
  height: 35px;
  overflow: hidden;
  background: rgba(16, 17, 20, 0.18);
}

.scroll-cue i::after {
  position: absolute;
  inset: 0;
  background: var(--ink);
  content: "";
  animation: scroll-line 2.2s ease-in-out infinite;
}

/* 私たちについて */
.about {
  background: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  gap: clamp(64px, 10vw, 150px);
  align-items: start;
}

.about-body {
  padding-top: 12px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 2.2;
}

.about-body p {
  margin: 0;
}

.about-body p + p {
  margin-top: 28px;
}

.experience-flow {
  position: relative;
  margin-top: clamp(100px, 13vw, 176px);
}

.flow-line {
  position: absolute;
  top: 50%;
  right: 0;
  left: 0;
  height: 1px;
  overflow: hidden;
  background: var(--line);
}

.flow-line span {
  display: block;
  width: 30%;
  height: 100%;
  background: var(--blue);
  transform: translateX(-100%);
}

.flow-line.is-visible span {
  animation: flow-across 4.8s var(--ease-in-out) infinite;
}

.experience-flow ol {
  position: relative;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  margin: 0;
  padding: 0;
  list-style: none;
}

.experience-flow li {
  display: grid;
  gap: 24px;
  justify-items: start;
}

.experience-flow li span {
  display: grid;
  width: 31px;
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--blue);
  background: var(--white);
  font-size: 8px;
  font-weight: 750;
}

.experience-flow li strong {
  font-size: clamp(14px, 1.4vw, 19px);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.experience-flow li:last-child {
  justify-items: end;
  text-align: right;
}

/* 使命と展望 */
.purpose {
  padding-block: 0;
  color: var(--white);
  background: var(--ink);
}

.purpose-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  width: min(100%, 1600px);
}

.purpose-card {
  position: relative;
  min-height: 720px;
  padding: clamp(72px, 7vw, 112px) clamp(42px, 6vw, 96px);
  overflow: hidden;
}

.purpose-card--mission {
  border-right: 1px solid var(--line-light);
}

.purpose-card--vision {
  background: var(--blue);
}

.purpose-meta {
  display: flex;
  justify-content: space-between;
  color: rgba(255, 255, 255, 0.56);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.13em;
}

.purpose-card h2 {
  position: relative;
  z-index: 2;
  max-width: 670px;
  margin: clamp(150px, 16vw, 230px) 0 0;
  font-size: clamp(34px, 3vw, 46px);
  font-weight: 520;
  line-height: 1.45;
  letter-spacing: -0.05em;
}

.purpose-card p {
  position: relative;
  z-index: 2;
  max-width: 570px;
  margin: 38px 0 0;
  color: rgba(255, 255, 255, 0.67);
  font-size: 14px;
  line-height: 2.1;
}

.purpose-symbol {
  position: absolute;
  top: 46px;
  right: -40px;
  width: 330px;
  height: 260px;
  opacity: 0.44;
}

.purpose-symbol span {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 130px;
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.34);
  transform: translate(-50%, -50%) rotate(30deg) skew(-5deg, -5deg);
}

.purpose-symbol span:nth-child(2) {
  transform: translate(-88%, -18%) rotate(30deg) skew(-5deg, -5deg);
}

.purpose-symbol span:nth-child(3) {
  transform: translate(-12%, -18%) rotate(30deg) skew(-5deg, -5deg);
}

.purpose-orbit {
  position: absolute;
  top: -80px;
  right: -80px;
  width: 380px;
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
}

.purpose-orbit::before,
.purpose-orbit::after {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: inherit;
  content: "";
}

.purpose-orbit::before {
  inset: 21%;
}

.purpose-orbit::after {
  inset: 40%;
  background: rgba(255, 255, 255, 0.1);
}

.purpose-orbit i {
  position: absolute;
  width: 9px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--white);
}

.purpose-orbit i:first-child {
  bottom: 8%;
  left: 23%;
}

.purpose-orbit i:nth-child(2) {
  top: 36%;
  left: 19%;
  width: 5px;
}

.purpose-orbit i:nth-child(3) {
  right: 22%;
  bottom: 26%;
  width: 6px;
}

/* 事業 */
.business {
  background: var(--paper);
}

.business-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.58fr);
  gap: clamp(60px, 12vw, 170px);
  align-items: end;
  margin-bottom: clamp(72px, 8vw, 118px);
}

.business-intro > p {
  margin: 0 0 10px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 2.15;
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.business-card {
  position: relative;
  display: flex;
  grid-column: span 2;
  flex-direction: column;
  justify-content: space-between;
  min-height: 470px;
  padding: clamp(30px, 3.3vw, 50px);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.25);
  overflow: hidden;
  transition: color 0.45s ease, background-color 0.45s ease;
}

.business-card::after {
  position: absolute;
  inset: 0;
  background: var(--ink);
  content: "";
  transform: translateY(101%);
  transition: transform 0.6s var(--ease-out);
}

.business-card > * {
  position: relative;
  z-index: 1;
}

.business-card:hover {
  color: var(--white);
}

.business-card:hover::after {
  transform: translateY(0);
}

.business-card--wide {
  grid-column: span 3;
  min-height: 520px;
}

.business-card--blue {
  color: var(--white);
  background: var(--blue);
}

.business-card--blue::after {
  background: var(--blue-deep);
}

.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.card-number {
  color: currentColor;
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.14em;
  opacity: 0.62;
}

.card-icon {
  width: 64px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.25;
  transition: transform 0.55s var(--ease-out);
}

.business-card:hover .card-icon {
  transform: rotate(7deg) scale(1.08);
}

.business-card h3 {
  margin: 0 0 25px;
  font-size: clamp(22px, 2.3vw, 32px);
  font-weight: 570;
  line-height: 1.45;
  letter-spacing: -0.045em;
}

.business-card p {
  max-width: 510px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 2.05;
  transition: color 0.45s ease;
}

.business-card:hover p,
.business-card--blue p {
  color: rgba(255, 255, 255, 0.68);
}

.card-tag {
  display: inline-flex;
  align-self: flex-start;
  margin-top: 38px;
  padding: 6px 11px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.11em;
  opacity: 0.62;
}

/* 大切にすること */
.values {
  color: var(--white);
  background: #0d0f14;
}

.values::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 7%;
  width: 1px;
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 22vw 0 rgba(255, 255, 255, 0.04), 44vw 0 rgba(255, 255, 255, 0.04),
    66vw 0 rgba(255, 255, 255, 0.04), 88vw 0 rgba(255, 255, 255, 0.04);
  content: "";
}

.values-layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.85fr) minmax(520px, 1.15fr);
  gap: clamp(70px, 10vw, 150px);
}

.values-title-wrap {
  position: sticky;
  top: calc(var(--header-height) + 50px);
  align-self: start;
}

.values-title-wrap > p {
  max-width: 430px;
  margin: 38px 0 0;
  color: rgba(255, 255, 255, 0.48);
  font-size: 13px;
}

.values .display-copy {
  font-size: clamp(38px, 4vw, 60px);
}

.values-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-light);
  list-style: none;
}

.value-item {
  display: grid;
  grid-template-columns: 55px 1fr 30px;
  gap: 24px;
  padding: 47px 8px 48px;
  border-bottom: 1px solid var(--line-light);
}

.value-number {
  color: rgba(255, 255, 255, 0.36);
  font-size: 9px;
  font-weight: 750;
}

.value-item h3 {
  margin: 0;
  font-size: clamp(22px, 2.2vw, 31px);
  font-weight: 540;
  letter-spacing: -0.04em;
}

.value-item p {
  max-width: 560px;
  margin: 17px 0 0;
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
  line-height: 2;
}

.value-mark {
  display: grid;
  width: 27px;
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 50%;
  color: var(--blue-pale);
  font-size: 14px;
  font-weight: 300;
  transition: color 0.35s ease, background-color 0.35s ease, transform 0.45s var(--ease-out);
}

.value-item:hover .value-mark {
  color: var(--white);
  background: var(--blue);
  border-color: var(--blue);
  transform: rotate(90deg);
}

/* 未来 */
.future {
  background: var(--white);
  overflow: hidden;
}

.future::after {
  position: absolute;
  z-index: -1;
  right: -18%;
  bottom: 0;
  width: 70vw;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(48, 75, 255, 0.1), transparent 66%);
  content: "";
}

.future-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(480px, 1.08fr);
  gap: clamp(52px, 7vw, 100px);
  align-items: center;
}

.future-copy > p {
  max-width: 590px;
  margin: 45px 0 0;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 2.2;
}

.future .display-copy {
  font-size: clamp(38px, 3.75vw, 54px);
}

.ecosystem {
  position: relative;
  width: min(100%, 620px);
  aspect-ratio: 1;
  justify-self: end;
}

.ecosystem-rings,
.ecosystem-rings i {
  position: absolute;
  border: 1px solid rgba(16, 17, 20, 0.14);
  border-radius: 50%;
}

.ecosystem-rings {
  inset: 7%;
}

.ecosystem-rings i:first-child {
  inset: 15%;
}

.ecosystem-rings i:nth-child(2) {
  inset: 31%;
}

.ecosystem-rings i:nth-child(3) {
  top: 50%;
  left: -4%;
  width: 108%;
  height: 0;
  border-radius: 0;
}

.ecosystem-center {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 50%;
  display: grid;
  width: 132px;
  aspect-ratio: 1;
  place-content: center;
  place-items: center;
  border-radius: 50%;
  color: var(--white);
  background: var(--blue);
  box-shadow: 0 24px 64px rgba(48, 75, 255, 0.3);
  transform: translate(-50%, -50%);
}

.ecosystem-center svg {
  width: 35px;
  fill: none;
  stroke: currentColor;
  stroke-linejoin: round;
  stroke-width: 1.2;
}

.ecosystem-center span {
  margin-top: 8px;
  font-family: "Yu Mincho", YuMincho, "Hiragino Mincho ProN", serif;
  font-size: 17px;
  letter-spacing: 0.15em;
}

.orbit-node {
  position: absolute;
  z-index: 2;
  display: grid;
  min-width: 102px;
  min-height: 45px;
  padding: 8px 14px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 11px 30px rgba(16, 17, 20, 0.06);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.orbit-node::before {
  width: 5px;
  aspect-ratio: 1;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--blue);
  content: "";
}

.orbit-node {
  grid-auto-flow: column;
}

.orbit-node--one {
  top: 7%;
  left: 39%;
}

.orbit-node--two {
  top: 30%;
  right: -1%;
}

.orbit-node--three {
  right: 8%;
  bottom: 17%;
}

.orbit-node--four {
  bottom: 10%;
  left: 11%;
}

.orbit-node--five {
  top: 31%;
  left: -2%;
}

.future-statement {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 70px;
  margin-top: clamp(90px, 12vw, 160px);
  padding-top: 45px;
  border-top: 1px solid var(--line);
}

.future-statement p {
  margin: 0;
  color: var(--blue);
  font-size: clamp(27px, 3.4vw, 48px);
  font-weight: 570;
  letter-spacing: -0.045em;
}

.future-statement > span {
  max-width: 420px;
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.9;
  text-align: right;
}

/* 会社情報 */
.company {
  background: var(--paper-soft);
}

.company-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.65fr) minmax(520px, 1.35fr);
  gap: clamp(70px, 11vw, 170px);
}

.company-data {
  margin: 0;
  border-top: 1px solid var(--line);
}

.company-data > div {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 30px;
  padding: 33px 0;
  border-bottom: 1px solid var(--line);
}

.company-data dt {
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.company-data dd {
  margin: 0;
  font-size: 14px;
  line-height: 2.1;
}

/* フッター */
.site-footer {
  position: relative;
  z-index: 1;
  padding: clamp(70px, 8vw, 110px) 0 28px;
  color: var(--white);
  background: var(--blue);
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  align-items: end;
  gap: 60px;
  min-height: 230px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 18px;
  width: max-content;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.035em;
}

.footer-brand svg {
  width: 52px;
  fill: none;
  stroke: currentColor;
  stroke-linejoin: round;
  stroke-width: 1.4;
}

.footer-top > p {
  margin: 0;
  font-family: "Yu Mincho", YuMincho, "Hiragino Mincho ProN", serif;
  font-size: clamp(20px, 2vw, 28px);
  line-height: 1.6;
  letter-spacing: 0.02em;
}

.back-to-top {
  display: flex;
  align-items: center;
  gap: 15px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.back-to-top svg {
  width: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1;
  transition: transform 0.4s var(--ease-out);
}

.back-to-top:hover svg {
  transform: translateY(-7px);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  margin-top: 78px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.3);
  color: rgba(255, 255, 255, 0.7);
  font-size: 9px;
  font-weight: 650;
  letter-spacing: 0.11em;
}

/* 表示アニメーション */
.js .reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 0.9s ease, transform 1s var(--ease-out);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.js .title-line.reveal {
  transform: translateY(70px);
}

.js .title-line.reveal.is-visible {
  transform: translateY(0);
}

.experience-flow li:nth-child(2),
.business-grid .business-card:nth-child(2),
.values-list .value-item:nth-child(2) {
  transition-delay: 0.08s;
}

.experience-flow li:nth-child(3),
.business-grid .business-card:nth-child(3),
.values-list .value-item:nth-child(3) {
  transition-delay: 0.16s;
}

.experience-flow li:nth-child(4),
.business-grid .business-card:nth-child(4),
.values-list .value-item:nth-child(4) {
  transition-delay: 0.24s;
}

.experience-flow li:nth-child(5),
.business-grid .business-card:nth-child(5) {
  transition-delay: 0.32s;
}

.experience-flow li:nth-child(6) {
  transition-delay: 0.4s;
}

@keyframes orbit-dash {
  to { stroke-dashoffset: -200; }
}

@keyframes cube-breathe {
  from { opacity: 0.72; }
  to { opacity: 1; }
}

@keyframes core-pulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-50%, -50%) scale(1.06); }
}

@keyframes chip-float {
  from { transform: translateY(-7px); }
  to { transform: translateY(7px); }
}

@keyframes scroll-line {
  0% { transform: translateY(-105%); }
  45%, 55% { transform: translateY(0); }
  100% { transform: translateY(105%); }
}

@keyframes flow-across {
  0% { transform: translateX(-100%); }
  55%, 100% { transform: translateX(430%); }
}

@media (max-width: 1120px) {
  .shell {
    width: min(calc(100% - 64px), var(--max-width));
  }

  .desktop-nav {
    gap: 22px;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(390px, 0.82fr);
  }

  .hero-title {
    font-size: clamp(43px, 4.8vw, 58px);
  }

  .hero-visual {
    width: min(50vw, 570px);
  }

  .values-layout {
    grid-template-columns: minmax(280px, 0.78fr) minmax(450px, 1.22fr);
    gap: 70px;
  }

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

@media (min-width: 1025px) and (max-width: 1120px) {
  .floating-chip--one {
    display: none;
  }
}

@media (max-width: 1024px) {
  :root {
    --header-height: 76px;
  }

  .header-inner {
    width: calc(100% - 48px);
  }

  .desktop-nav {
    display: none;
  }

  .menu-button,
  .mobile-menu {
    display: block;
  }

  .site-header.menu-active {
    color: var(--white);
    border-color: transparent;
    background: var(--ink);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .mobile-menu nav {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
  }

  .mobile-menu nav a {
    display: grid;
    grid-template-columns: 48px 1fr;
    align-items: center;
    padding: 20px 2px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.17);
    font-size: clamp(20px, 5vw, 30px);
    font-weight: 540;
    letter-spacing: -0.03em;
  }

  .mobile-menu nav a span {
    color: rgba(255, 255, 255, 0.42);
    font-size: 9px;
  }

  .mobile-menu nav a.is-active {
    color: #91a1ff;
  }

  .mobile-menu > p {
    position: absolute;
    bottom: 34px;
    left: 32px;
    margin: 0;
    color: rgba(255, 255, 255, 0.46);
    font-size: 11px;
    letter-spacing: 0.13em;
  }

  .hero {
    min-height: auto;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-block: 96px 110px;
  }

  .hero-copy {
    padding-left: 0;
  }

  .hero-title {
    font-size: clamp(44px, 6.4vw, 66px);
  }

  .hero-visual {
    width: min(86vw, 640px);
    margin: 28px auto 0;
  }

  .hero-footer {
    bottom: 18px;
  }

  .about-grid,
  .business-intro,
  .company-grid {
    grid-template-columns: 1fr;
  }

  .about-grid,
  .business-intro,
  .company-grid {
    gap: 48px;
  }

  .experience-flow ol {
    grid-template-columns: repeat(3, 1fr);
    row-gap: 58px;
  }

  .flow-line {
    display: none;
  }

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

  .purpose-grid.shell {
    width: 100%;
  }

  .purpose-card {
    min-height: 630px;
  }

  .purpose-card--mission {
    border-right: 0;
    border-bottom: 1px solid var(--line-light);
  }

  .business-card,
  .business-card--wide {
    grid-column: span 3;
  }

  .values-layout {
    grid-template-columns: 1fr;
  }

  .values-title-wrap {
    position: static;
  }

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

  .ecosystem {
    justify-self: center;
    width: min(82vw, 590px);
    margin-top: 30px;
  }

  .future-statement {
    display: grid;
    gap: 24px;
  }

  .future-statement > span {
    text-align: left;
  }

  .footer-top {
    grid-template-columns: 1fr auto;
  }

  .footer-top > p {
    grid-column: 1 / -1;
    grid-row: 1;
    max-width: 500px;
  }
}

@media (max-width: 640px) {
  :root {
    --header-height: 68px;
  }

  body {
    font-size: 15px;
  }

  .shell,
  .header-inner {
    width: calc(100% - 40px);
  }

  .brand {
    gap: 10px;
  }

  .brand-mark {
    width: 30px;
    height: 30px;
  }

  .brand-name span:first-child {
    font-size: 12px;
  }

  .brand-name span:last-child {
    font-size: 8px;
  }

  .section {
    padding-block: 100px;
  }

  .section-heading {
    grid-template-columns: 46px 1fr;
    margin-bottom: 60px;
  }

  .section-kicker {
    gap: 14px;
  }

  .section-kicker::before {
    width: 32px;
  }

  .display-copy {
    font-size: clamp(34px, 10vw, 52px);
    line-height: 1.4;
  }

  .hero {
    background-size: 56px 56px;
  }

  .hero-grid {
    padding-block: 66px 124px;
  }

  .eyebrow {
    margin-bottom: 25px;
    font-size: 10px;
  }

  .hero-title {
    font-size: clamp(25px, 7.8vw, 34px);
    line-height: 1.2;
  }

  .title-line {
    white-space: normal;
  }

  .mobile-title-break {
    display: block;
  }

  .title-line--offset {
    margin-left: 0;
  }

  .hero-lead {
    margin-top: 30px;
    font-size: 14px;
  }

  .hero-lead br {
    display: none;
  }

  .hero-actions {
    display: grid;
    gap: 20px;
    margin-top: 34px;
  }

  .text-link {
    min-width: 0;
    max-width: 220px;
  }

  .hero-visual {
    width: calc(100vw - 26px);
    margin-top: 50px;
    transform: translateX(4%);
  }

  .floating-chip {
    min-width: 62px;
    min-height: 31px;
    padding: 5px 10px;
    font-size: 8px;
  }

  .visual-coordinate--side {
    right: 3%;
  }

  .hero-footer > span {
    display: none;
  }

  .hero-footer {
    justify-content: flex-end;
  }

  .about-body {
    font-size: 14px;
  }

  .experience-flow {
    margin-top: 88px;
  }

  .experience-flow ol {
    grid-template-columns: 1fr 1fr;
    gap: 44px 24px;
  }

  .experience-flow li,
  .experience-flow li:last-child {
    gap: 14px;
    justify-items: start;
    text-align: left;
  }

  .purpose-card {
    min-height: 620px;
    padding: 54px 24px;
  }

  .purpose-card h2 {
    margin-top: 165px;
    font-size: clamp(23px, 7.45vw, 31px);
    line-height: 1.65;
  }

  .purpose-card p {
    font-size: 13px;
  }

  .purpose-symbol {
    right: -100px;
  }

  .purpose-orbit {
    right: -155px;
  }

  .business-intro {
    margin-bottom: 66px;
  }

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

  .business-card,
  .business-card--wide {
    grid-column: auto;
    min-height: 410px;
    padding: 28px;
  }

  .business-card h3 {
    font-size: 24px;
  }

  .card-icon {
    width: 52px;
  }

  .values-layout {
    gap: 64px;
  }

  .value-item {
    grid-template-columns: 36px 1fr;
    gap: 15px;
    padding-block: 36px;
  }

  .value-mark {
    display: none;
  }

  .value-item h3 {
    font-size: 23px;
  }

  .future-grid {
    gap: 48px;
  }

  .future .display-copy {
    font-size: clamp(29px, 8.8vw, 35px);
    letter-spacing: -0.06em;
  }

  .ecosystem {
    width: calc(100vw - 28px);
    margin-left: -6px;
  }

  .ecosystem-center {
    width: 103px;
  }

  .orbit-node {
    min-width: 80px;
    min-height: 36px;
    padding: 6px 9px;
    font-size: 8px;
  }

  .orbit-node--two {
    right: 0;
  }

  .orbit-node--five {
    left: 0;
  }

  .future-statement p {
    font-size: 28px;
    line-height: 1.55;
  }

  .company-data > div {
    grid-template-columns: 1fr;
    gap: 11px;
  }

  .company-data dd {
    font-size: 13px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 46px;
  }

  .footer-brand {
    font-size: 17px;
  }

  .footer-brand svg {
    width: 45px;
  }

  .back-to-top {
    justify-self: end;
  }

  .footer-bottom {
    display: grid;
    gap: 8px;
    margin-top: 56px;
  }
}

@media (hover: none), (pointer: coarse) {
  .cursor-light {
    display: none;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .site-header,
  .cursor-light,
  .scroll-cue,
  .hero-visual,
  .ecosystem {
    display: none !important;
  }

  .hero,
  .section,
  .purpose-card {
    min-height: 0;
    padding-block: 48px;
    break-inside: avoid;
  }

  .hero-grid,
  .about-grid,
  .purpose-grid,
  .business-intro,
  .values-layout,
  .future-grid,
  .company-grid {
    grid-template-columns: 1fr;
  }
}