.sg-home {
  --sg-ai: #123f6c;
  --sg-ai-deep: #061f3d;
  --sg-ai-mid: #0c3158;
  --sg-sky: #9bd8ef;
  --sg-mist: #eaf2f3;
  --sg-paper: #f7f8f5;
  --sg-sand: #eee9df;
  --sg-text: #102f4f;
  --sg-muted: #5f7180;
  --sg-line: rgba(12, 49, 88, 0.14);
  position: relative;
  overflow: clip;
  color: var(--sg-text);
  background: var(--sg-paper);
}

.sg-home a {
  color: inherit;
  text-decoration: none;
}

.sg-home em {
  font-style: normal;
}

.sg-home img {
  max-width: 100%;
}

.sg-home section {
  scroll-margin-top: 80px;
}

.sg-shell {
  width: min(100%, 1560px);
  margin: 0 auto;
  padding-inline: clamp(28px, 5.2vw, 88px);
}

.sg-section {
  position: relative;
  padding-block: clamp(112px, 13vw, 190px);
}

.sg-overline {
  margin: 0;
  color: var(--sg-ai);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.25em;
  line-height: 1.6;
}

.sg-button {
  display: inline-flex;
  min-width: 216px;
  height: 58px;
  padding: 0 22px 0 26px;
  align-items: center;
  justify-content: space-between;
  border: 1px solid currentColor;
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.18em;
  transition:
    color 0.28s ease,
    background 0.28s ease,
    transform 0.28s ease,
    box-shadow 0.28s ease;
}

.sg-button:hover,
.sg-button:focus-visible {
  transform: translateY(-3px);
}

.sg-button > span:last-child,
.sg-nav-contact > span:last-child,
.sg-join-link > span:last-child {
  font-size: 17px;
  line-height: 1;
  transition: transform 0.28s ease;
}

.sg-button:hover > span:last-child,
.sg-button:focus-visible > span:last-child,
.sg-nav-contact:hover > span:last-child,
.sg-nav-contact:focus-visible > span:last-child,
.sg-join-card:hover .sg-join-link > span:last-child,
.sg-join-card:focus-visible .sg-join-link > span:last-child {
  transform: translate(3px, -3px);
}

.sg-section-label {
  display: flex;
  margin-bottom: clamp(60px, 7vw, 96px);
  align-items: center;
  gap: 14px;
  color: var(--sg-ai);
}

.sg-section-label > span {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 15px;
}

.sg-section-label > i {
  width: 42px;
  height: 1px;
  background: currentColor;
  opacity: 0.55;
}

.sg-section-label > strong {
  font-size: 11px;
  letter-spacing: 0.2em;
}

.sg-section-label > small {
  margin-left: 4px;
  color: var(--sg-muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
}

.sg-section-label.is-light {
  color: #fff;
}

.sg-section-label.is-light > small {
  color: rgba(255, 255, 255, 0.65);
}

/* Hero */
.sg-hero {
  --hero-x: 0px;
  --hero-y: 0px;
  position: relative;
  display: flex;
  min-height: max(760px, 100svh);
  padding: 132px clamp(28px, 6.7vw, 112px) 92px;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: #fff;
  background: #6eb8d6;
  text-align: center;
  isolation: isolate;
}

.sg-hero-media {
  position: absolute;
  z-index: -3;
  inset: 0;
  overflow: hidden;
}

.sg-hero-media > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 58% 52%;
  filter: saturate(1.08) brightness(1.08);
  transform:
    translate3d(var(--hero-x), var(--hero-y), 0)
    scale(1.055);
  transition: transform 1.2s cubic-bezier(0.2, 0.7, 0.2, 1);
  animation: sgHeroBreath 18s ease-in-out infinite alternate;
  will-change: transform;
}

.sg-hero-tint {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      90deg,
      rgba(8, 49, 82, 0.62) 0%,
      rgba(10, 67, 104, 0.48) 28%,
      rgba(18, 91, 129, 0.24) 54%,
      rgba(42, 132, 166, 0.06) 78%
    ),
    linear-gradient(
      180deg,
      rgba(6, 40, 72, 0.34) 0%,
      rgba(20, 91, 129, 0.02) 38%,
      rgba(10, 66, 102, 0.1) 70%,
      rgba(5, 45, 78, 0.42) 100%
    );
}

.sg-hero-light {
  position: absolute;
  display: block;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(30px);
}

.sg-hero-light-one {
  top: 7%;
  left: 33%;
  width: 37vw;
  height: 15vw;
  background: rgba(255, 255, 255, 0.24);
  animation: sgCloudDrift 24s ease-in-out infinite alternate;
}

.sg-hero-light-two {
  right: 6%;
  bottom: 24%;
  width: 42vw;
  height: 16vw;
  background: rgba(177, 231, 250, 0.26);
  animation: sgLightPulse 8s ease-in-out infinite;
}

.sg-hero::before {
  position: absolute;
  z-index: 5;
  inset: 0 auto 0 0;
  width: clamp(6px, 0.62vw, 10px);
  background: linear-gradient(180deg, #74c9eb, var(--sg-ai) 48%, #061f3d);
  content: "";
}

.sg-hero::after {
  position: absolute;
  z-index: 1;
  top: 0;
  right: 19%;
  width: 1px;
  height: 18%;
  background: rgba(255, 255, 255, 0.48);
  content: "";
}

.sg-header {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 0;
  display: flex;
  width: 100%;
  height: 104px;
  padding: 0 clamp(30px, 4.5vw, 76px);
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  animation: sgFadeDown 0.9s 0.1s ease both;
}

.sg-header-brand {
  display: inline-flex;
  width: clamp(176px, 15vw, 224px);
  line-height: 0;
}

.sg-header-brand img {
  width: 100%;
  height: auto;
  filter: brightness(0) invert(1);
}

.sg-nav {
  display: flex;
  align-items: center;
  gap: clamp(20px, 2.5vw, 42px);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.15em;
}

.sg-nav > a:not(.sg-nav-contact) {
  position: relative;
  padding: 16px 0;
}

.sg-nav > a:not(.sg-nav-contact)::after {
  position: absolute;
  right: 0;
  bottom: 8px;
  left: 0;
  height: 1px;
  background: #fff;
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.28s ease;
}

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

.sg-nav-contact {
  display: inline-flex;
  min-width: 142px;
  height: 46px;
  padding: 0 17px 0 21px;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  border: 1px solid rgba(255, 255, 255, 0.56);
  background: rgba(5, 28, 56, 0.32);
  backdrop-filter: blur(12px);
  transition:
    color 0.28s ease,
    background 0.28s ease,
    transform 0.28s ease;
}

.sg-nav-contact:hover,
.sg-nav-contact:focus-visible {
  color: var(--sg-ai-deep);
  background: #fff;
  transform: translateY(-2px);
}

.sg-mobile-menu {
  display: none;
}

.sg-hero-copy {
  position: relative;
  z-index: 3;
  width: min(92vw, 920px);
  margin-inline: auto;
  padding-bottom: 0;
  animation: sgHeroCopyIn 1.75s 0.38s cubic-bezier(0.2, 0.75, 0.25, 1) both;
}

.sg-hero-kicker {
  display: flex;
  margin: 0 0 clamp(30px, 4.5vh, 44px);
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: var(--sg-sky);
  font-size: 9px;
  font-weight: 750;
  letter-spacing: 0.25em;
}

.sg-hero-kicker i {
  width: 44px;
  height: 1px;
  background: currentColor;
}

.sg-hero-copy h1 {
  margin: 0;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  font-size: clamp(54px, 6.25vw, 94px);
  font-weight: 600;
  letter-spacing: 0.025em;
  line-height: 1.27;
  text-shadow: 0 5px 36px rgba(1, 17, 36, 0.28);
}

.sg-hero-copy h1 > span {
  white-space: nowrap;
}

.sg-hero-copy > p:not(.sg-hero-kicker) {
  max-width: 760px;
  margin: clamp(25px, 3.5vh, 34px) 0 0;
  margin-inline: auto;
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(14px, 1.2vw, 17px);
  font-weight: 520;
  letter-spacing: 0.07em;
  line-height: 2;
  text-shadow: 0 2px 18px rgba(1, 17, 36, 0.34);
}

.sg-hero-index {
  position: absolute;
  z-index: 3;
  top: 143px;
  right: clamp(40px, 5vw, 82px);
  display: grid;
  width: 204px;
  padding: 20px 22px 18px;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(5, 28, 56, 0.14);
  backdrop-filter: blur(12px);
  animation: sgFadeDown 1s 0.48s ease both;
}

.sg-hero-index > span,
.sg-hero-index > small {
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.sg-hero-index strong {
  grid-row: 1 / span 2;
  grid-column: 2;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 19px;
  font-weight: 400;
  line-height: 1;
}

.sg-hero-index i {
  width: 100%;
  height: 1px;
  background: rgba(255, 255, 255, 0.42);
}

.sg-hero-index small {
  grid-column: 1 / span 2;
  color: rgba(255, 255, 255, 0.7);
}

.sg-scroll {
  position: absolute;
  z-index: 5;
  right: 24px;
  bottom: 30px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.22em;
  transform: rotate(90deg) translateX(100%);
  transform-origin: right bottom;
}

.sg-scroll i {
  position: relative;
  width: 46px;
  height: 1px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.34);
}

.sg-scroll i::after {
  position: absolute;
  inset: 0;
  background: #fff;
  content: "";
  animation: sgScrollLine 2.2s ease-in-out infinite;
  transform: translateX(-100%);
}

/* Vision */
.sg-vision {
  overflow: hidden;
  background:
    radial-gradient(circle at 90% 14%, rgba(131, 202, 226, 0.15), transparent 28%),
    #fbfcfa;
}

.sg-vision::before {
  position: absolute;
  right: -1vw;
  bottom: -0.22em;
  color: rgba(11, 53, 91, 0.028);
  content: "PURPOSE";
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(140px, 24vw, 380px);
  line-height: 0.8;
  pointer-events: none;
}

.sg-vision-grid {
  display: grid;
  grid-template-columns: 1.32fr 0.68fr;
  align-items: center;
  gap: clamp(34px, 4vw, 64px);
}

.sg-section-heading h2,
.sg-join-card h2 {
  margin: 17px 0 0;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  font-size: clamp(48px, 5.3vw, 80px);
  font-weight: 600;
  letter-spacing: 0.025em;
  line-height: 1.35;
}

.sg-section-heading h2 em {
  color: var(--sg-ai);
}

.sg-vision-statement {
  position: relative;
  padding: clamp(34px, 4vw, 58px) 0 clamp(34px, 4vw, 58px)
    clamp(26px, 3.8vw, 58px);
  border-left: 2px solid var(--sg-ai);
}

.sg-vision-statement::before {
  position: absolute;
  z-index: -1;
  top: 50%;
  left: -9%;
  width: 52%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(102, 190, 220, 0.2), transparent 68%);
  content: "";
  filter: blur(4px);
  transform: translateY(-50%);
}

.sg-vision-statement h2 {
  margin: 20px 0 0;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  font-size: clamp(64px, 6.2vw, 94px);
  font-weight: 650;
  letter-spacing: -0.015em;
  line-height: 1.14;
  text-shadow: 0 12px 38px rgba(8, 48, 82, 0.08);
}

.sg-vision-statement h2 em {
  position: relative;
  color: var(--sg-ai);
}

.sg-vision-statement h2 em::after {
  position: absolute;
  right: 0;
  bottom: -12px;
  width: 58%;
  height: 4px;
  background: linear-gradient(90deg, var(--sg-ai), var(--sg-sky));
  content: "";
}

.sg-vision-lead {
  margin: clamp(28px, 4vw, 46px) 0 0;
  color: #2c4a63;
  font-size: clamp(16px, 1.45vw, 20px);
  font-weight: 520;
  letter-spacing: 0.08em;
  line-height: 2.1;
}

.sg-vision-orbit {
  position: relative;
  width: min(42vw, 520px);
  aspect-ratio: 1;
  margin-inline: auto;
}

.sg-orbit-ring {
  position: absolute;
  border: 1px solid rgba(13, 58, 105, 0.2);
  border-radius: 50%;
}

.sg-orbit-ring-one {
  inset: 8%;
  animation: sgOrbitSpin 34s linear infinite;
}

.sg-orbit-ring-one::before,
.sg-orbit-ring-one::after,
.sg-orbit-ring-two::before {
  position: absolute;
  width: 9px;
  height: 9px;
  border: 5px solid #fbfcfa;
  border-radius: 50%;
  background: var(--sg-ai);
  box-shadow: 0 0 0 1px rgba(13, 58, 105, 0.2);
  content: "";
}

.sg-orbit-ring-one::before {
  top: 7%;
  right: 20%;
}

.sg-orbit-ring-one::after {
  bottom: 16%;
  left: 8%;
}

.sg-orbit-ring-two {
  inset: 21%;
  border-style: dashed;
  animation: sgOrbitSpinReverse 24s linear infinite;
}

.sg-orbit-ring-two::before {
  top: 46%;
  left: -5px;
  background: #65a5bc;
}

.sg-orbit-core {
  position: absolute;
  inset: 26%;
  display: grid;
  padding: 10%;
  place-items: center;
  border: 1px solid rgba(13, 58, 105, 0.14);
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 24%, rgba(255, 255, 255, 0.96), rgba(225, 238, 240, 0.9));
  box-shadow:
    0 30px 80px rgba(7, 42, 73, 0.12),
    inset 0 0 0 9px rgba(255, 255, 255, 0.5);
}

.sg-orbit-core img {
  width: 112%;
  max-width: none;
  height: auto;
}

.sg-orbit-node {
  position: absolute;
  display: grid;
  width: 176px;
  min-height: 66px;
  padding: 11px 16px;
  align-items: center;
  place-items: center;
  border: 1px solid rgba(13, 58, 105, 0.14);
  color: var(--sg-ai-deep);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 16px 40px rgba(7, 42, 73, 0.1);
  backdrop-filter: blur(10px);
  animation: sgNodeFloat 5.6s ease-in-out infinite;
}

.sg-orbit-node img {
  width: min(100%, 148px);
  height: auto;
  object-fit: contain;
}

.sg-orbit-node-1 {
  top: 1%;
  left: 36%;
}

.sg-orbit-node-2 {
  top: 24%;
  right: -12%;
  animation-delay: -1.4s;
}

.sg-orbit-node-3 {
  right: -5%;
  bottom: 8%;
  animation-delay: -2.8s;
}

.sg-orbit-node-4 {
  bottom: 3%;
  left: 2%;
  animation-delay: -0.8s;
}

.sg-orbit-node-5 {
  top: 31%;
  left: -13%;
  animation-delay: -2.1s;
}

.sg-vision-manifesto {
  position: relative;
  display: block;
  width: min(100%, 920px);
  margin-top: clamp(74px, 9vw, 132px);
  margin-inline: auto;
  padding-top: clamp(42px, 5vw, 70px);
  border-top: 1px solid var(--sg-line);
  text-align: center;
}

.sg-vision-manifesto > p {
  margin: 0;
  color: #334f65;
  font-size: clamp(15px, 1.2vw, 18px);
  letter-spacing: 0.05em;
  line-height: 2.15;
}

/* Business */
.sg-business {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.72), transparent 34%),
    var(--sg-mist);
}

.sg-section-heading {
  display: grid;
  margin-bottom: clamp(58px, 7vw, 100px);
  grid-template-columns: 1.1fr 0.74fr;
  align-items: end;
  gap: clamp(50px, 8vw, 130px);
}

.sg-section-heading h2 {
  font-size: clamp(45px, 4.7vw, 72px);
}

.sg-section-heading > p {
  margin: 0 0 8px;
  color: #496174;
  font-size: clamp(14px, 1.15vw, 17px);
  letter-spacing: 0.05em;
  line-height: 2.05;
}

.sg-business-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  border-top: 1px solid rgba(12, 49, 88, 0.12);
  border-left: 1px solid rgba(12, 49, 88, 0.12);
}

.sg-business-card {
  --card-accent: #2c6a8e;
  position: relative;
  display: flex;
  min-height: 520px;
  padding: 30px 30px 32px;
  grid-column: span 2;
  flex-direction: column;
  overflow: hidden;
  border-right: 1px solid rgba(12, 49, 88, 0.12);
  border-bottom: 1px solid rgba(12, 49, 88, 0.12);
  background: rgba(255, 255, 255, 0.7);
  transition:
    color 0.38s ease,
    transform 0.38s ease,
    box-shadow 0.38s ease,
    background 0.38s ease;
  isolation: isolate;
}

.sg-business-card:nth-child(4) {
  grid-column: 2 / span 2;
}

.sg-business-card:nth-child(5) {
  grid-column: 4 / span 2;
}

.sg-business-card[data-business="welfare"] {
  --card-accent: #c9287c;
}

.sg-business-card[data-business="housing"] {
  --card-accent: #276d38;
}

.sg-business-card[data-business="technology"] {
  --card-accent: #0d67c8;
}

.sg-business-card[data-business="green"] {
  --card-accent: #45a72b;
}

.sg-business-card[data-business="souvenir"] {
  --card-accent: #bd8a3e;
}

.sg-business-card:hover,
.sg-business-card:focus-visible {
  color: #fff;
  background: var(--card-accent);
  box-shadow: 0 28px 72px rgba(7, 42, 73, 0.18);
  transform: translateY(-8px);
  z-index: 2;
}

.sg-business-card:hover .sg-business-card-top,
.sg-business-card:focus-visible .sg-business-card-top {
  color: #fff;
}

.sg-business-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--card-accent);
}

.sg-business-card-top > strong {
  position: relative;
  padding-left: 17px;
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.1em;
}

.sg-business-card-top > strong::before {
  position: absolute;
  top: 50%;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  content: "";
  transform: translateY(-50%);
}

.sg-business-card-top > small {
  color: #69808f;
  font-size: 8px;
  font-weight: 750;
  letter-spacing: 0.12em;
  transition: color 0.38s ease;
}

.sg-business-card:hover .sg-business-card-top > small,
.sg-business-card:focus-visible .sg-business-card-top > small {
  color: rgba(255, 255, 255, 0.78);
}

.sg-business-logo {
  display: flex;
  min-height: 135px;
  margin: 28px 0 24px;
  align-items: center;
  justify-content: center;
}

.sg-business-logo img {
  width: min(100%, 205px);
  height: auto;
  transition:
    filter 0.38s ease,
    transform 0.38s ease;
}

.sg-business-card:hover .sg-business-logo img,
.sg-business-card:focus-visible .sg-business-logo img {
  filter: brightness(0) invert(1);
  transform: scale(1.04);
}

.sg-business-card-copy {
  position: relative;
  z-index: 1;
  margin-top: auto;
}

.sg-business-card-copy h3 {
  margin: 0;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  font-size: clamp(18px, 1.45vw, 23px);
  font-weight: 650;
  line-height: 1.65;
}

.sg-business-card-copy p {
  margin: 16px 0 0;
  color: #5d7180;
  font-size: 12px;
  line-height: 1.9;
  transition: color 0.38s ease;
}

.sg-business-card:hover .sg-business-card-copy p,
.sg-business-card:focus-visible .sg-business-card-copy p {
  color: rgba(255, 255, 255, 0.82);
}

.sg-business-card-link {
  position: relative;
  z-index: 1;
  display: flex;
  margin-top: 24px;
  padding-top: 18px;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(12, 49, 88, 0.12);
  font-size: 9px;
  font-weight: 750;
  letter-spacing: 0.16em;
}

.sg-business-card:hover .sg-business-card-link,
.sg-business-card:focus-visible .sg-business-card-link {
  border-top-color: rgba(255, 255, 255, 0.26);
}

.sg-business-card-glow {
  position: absolute;
  z-index: -1;
  top: -90px;
  right: -90px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: var(--card-accent);
  filter: blur(40px);
  opacity: 0.08;
  transition:
    opacity 0.4s ease,
    transform 0.4s ease;
}

.sg-business-card:hover .sg-business-card-glow,
.sg-business-card:focus-visible .sg-business-card-glow {
  opacity: 0.34;
  transform: scale(1.8);
}

/* Join */
.sg-join {
  position: relative;
  padding-top: clamp(105px, 11vw, 165px);
  color: var(--sg-ai-deep);
  background:
    radial-gradient(circle at 10% 5%, rgba(112, 200, 232, 0.28), transparent 30%),
    radial-gradient(circle at 88% 8%, rgba(255, 215, 150, 0.24), transparent 24%),
    linear-gradient(180deg, #edf8fb 0%, #f9fbf8 100%);
  overflow: hidden;
}

.sg-join-intro {
  display: grid;
  padding-bottom: clamp(65px, 8vw, 112px);
  grid-template-columns: 0.8fr 1.2fr;
  align-items: end;
  gap: 60px;
}

.sg-join-intro .sg-section-label {
  margin-bottom: 0;
}

.sg-join-intro > p {
  margin: 0;
  color: #4c6678;
  font-size: clamp(15px, 1.35vw, 19px);
  letter-spacing: 0.06em;
  line-height: 2;
}

.sg-join-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(12, 49, 88, 0.12);
}

.sg-join-card {
  position: relative;
  display: flex;
  min-height: 680px;
  padding: clamp(48px, 6vw, 94px);
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  border-top: 1px solid rgba(12, 49, 88, 0.12);
  transition:
    background 0.4s ease,
    color 0.4s ease,
    transform 0.4s cubic-bezier(0.2, 0.75, 0.25, 1),
    box-shadow 0.4s ease;
  isolation: isolate;
}

.sg-recruit-card {
  color: var(--sg-ai-deep);
  background:
    radial-gradient(circle at 80% 18%, rgba(118, 205, 235, 0.5), transparent 28%),
    linear-gradient(145deg, #e4f4f9, #f9fcfb 74%);
}

.sg-partner-card {
  color: var(--sg-ai-deep);
  background:
    radial-gradient(circle at 78% 18%, rgba(244, 194, 110, 0.34), transparent 30%),
    linear-gradient(145deg, #faf4e9, #fdfbf7 74%);
}

.sg-join-card:hover,
.sg-join-card:focus-visible {
  z-index: 2;
  box-shadow: 0 30px 80px rgba(7, 42, 73, 0.14);
  transform: translateY(-8px);
}

.sg-join-card-number {
  position: absolute;
  top: 34px;
  right: 40px;
  color: currentColor;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(42px, 5vw, 74px);
  opacity: 0.17;
}

.sg-join-card .sg-overline {
  position: relative;
  z-index: 2;
  color: currentColor;
  opacity: 0.72;
}

.sg-join-card h2 {
  position: relative;
  z-index: 2;
  font-size: clamp(43px, 4.5vw, 70px);
}

.sg-join-card > p:not(.sg-overline) {
  position: relative;
  z-index: 2;
  max-width: 520px;
  margin: 27px 0 0;
  color: currentColor;
  font-size: clamp(14px, 1.2vw, 17px);
  letter-spacing: 0.05em;
  line-height: 2;
  opacity: 0.78;
}

.sg-join-link {
  position: relative;
  z-index: 2;
  display: flex;
  width: min(100%, 270px);
  margin-top: 38px;
  padding: 17px 0;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid currentColor;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.sg-join-art {
  position: absolute;
  z-index: 0;
  right: -10%;
  bottom: -18%;
  width: min(50vw, 630px);
  aspect-ratio: 1;
  border: 1px solid currentColor;
  border-radius: 50%;
  opacity: 0.17;
  transition:
    opacity 0.5s ease,
    transform 0.8s cubic-bezier(0.2, 0.75, 0.25, 1);
}

.sg-join-card:hover .sg-join-art,
.sg-join-card:focus-visible .sg-join-art {
  opacity: 0.28;
  transform: scale(1.06) rotate(8deg);
}

.sg-join-art i {
  position: absolute;
  display: block;
  border: 1px solid currentColor;
  border-radius: 50%;
}

.sg-join-art i:nth-child(1) {
  inset: 14%;
}

.sg-join-art i:nth-child(2) {
  inset: 30%;
  border-style: dashed;
  animation: sgOrbitSpin 28s linear infinite;
}

.sg-join-art i:nth-child(3) {
  top: 48%;
  left: -8%;
  width: 116%;
  height: 1px;
  border: 0;
  border-radius: 0;
  background: currentColor;
  transform: rotate(-22deg);
}

/* Company */
.sg-company {
  color: var(--sg-ai-deep);
  background:
    linear-gradient(rgba(18, 63, 108, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 63, 108, 0.045) 1px, transparent 1px),
    radial-gradient(circle at 88% 13%, rgba(131, 211, 234, 0.3), transparent 29%),
    linear-gradient(145deg, #fafdfe 0%, #eef7f8 100%);
  background-size:
    72px 72px,
    72px 72px,
    auto,
    auto;
  overflow: hidden;
}

.sg-company-panel {
  position: relative;
  display: grid;
  min-height: 590px;
  grid-template-columns: minmax(0, 1.05fr) minmax(430px, 0.95fr);
  overflow: hidden;
  border: 1px solid rgba(12, 49, 88, 0.14);
  background: rgba(255, 255, 255, 0.76);
  box-shadow: 0 35px 100px rgba(8, 43, 77, 0.08);
  backdrop-filter: blur(18px);
}

.sg-company-copy {
  position: relative;
  z-index: 2;
  display: flex;
  padding: clamp(48px, 6vw, 90px);
  flex-direction: column;
  justify-content: center;
}

.sg-company-copy h2 {
  margin: 30px 0 0;
  color: var(--sg-ai-deep);
  font-family: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  font-size: clamp(46px, 5.4vw, 78px);
  font-weight: 650;
  letter-spacing: 0.015em;
  line-height: 1.36;
}

.sg-company-copy h2 em {
  color: var(--sg-ai);
}

.sg-company-copy > p:not(.sg-overline) {
  max-width: 590px;
  margin: 30px 0 0;
  color: #526b7d;
  font-size: clamp(14px, 1.2vw, 17px);
  letter-spacing: 0.055em;
  line-height: 2.1;
}

.sg-company-link {
  display: flex;
  width: min(100%, 280px);
  margin-top: 42px;
  padding: 18px 0;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--sg-ai);
  color: var(--sg-ai);
  font-size: 11px;
  font-weight: 760;
  letter-spacing: 0.13em;
}

.sg-company-link > span {
  font-size: 17px;
  transition: transform 0.28s ease;
}

.sg-company-link:hover > span,
.sg-company-link:focus-visible > span {
  transform: translate(4px, -4px);
}

.sg-company-visual {
  position: relative;
  display: grid;
  min-height: 590px;
  place-items: center;
  overflow: hidden;
  border-left: 1px solid rgba(12, 49, 88, 0.11);
  background:
    radial-gradient(circle at 50% 50%, rgba(134, 213, 236, 0.46), transparent 48%),
    linear-gradient(145deg, rgba(231, 247, 250, 0.6), rgba(255, 255, 255, 0.84));
}

.sg-company-visual img {
  position: relative;
  z-index: 3;
  width: min(63%, 370px);
  height: auto;
  filter: drop-shadow(0 18px 30px rgba(7, 42, 73, 0.1));
}

.sg-company-visual > span {
  position: absolute;
  right: 36px;
  bottom: 31px;
  color: var(--sg-ai);
  font-size: 9px;
  font-weight: 760;
  letter-spacing: 0.22em;
}

.sg-company-ring {
  position: absolute;
  display: block;
  border: 1px solid rgba(12, 49, 88, 0.17);
  border-radius: 50%;
}

.sg-company-ring-one {
  width: 83%;
  aspect-ratio: 1;
  animation: sgOrbitSpin 34s linear infinite;
}

.sg-company-ring-two {
  width: 61%;
  aspect-ratio: 1;
  border-style: dashed;
  animation: sgOrbitSpinReverse 25s linear infinite;
}

.sg-company-ring-three {
  width: 38%;
  aspect-ratio: 1;
  border-color: rgba(48, 164, 204, 0.3);
  box-shadow: 0 0 70px rgba(94, 193, 222, 0.2);
}

/* Footer */
.sg-footer {
  color: var(--sg-ai-deep);
  background:
    radial-gradient(circle at 10% 0%, rgba(111, 197, 226, 0.18), transparent 28%),
    linear-gradient(180deg, #fbfdfd 0%, #f3f8f8 100%);
}

.sg-footer-main {
  display: grid;
  padding: clamp(70px, 8vw, 120px) 0;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
}

.sg-footer-brand img {
  width: clamp(210px, 23vw, 330px);
  height: auto;
}

.sg-footer-brand p {
  margin: 30px 0 0;
  color: #5f7584;
  font-size: 13px;
  letter-spacing: 0.06em;
  line-height: 2;
}

.sg-footer-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 50px;
}

.sg-footer-nav > div {
  display: grid;
  align-content: start;
  gap: 13px;
}

.sg-footer-nav strong {
  margin-bottom: 9px;
  color: var(--sg-ai);
  font-size: 9px;
  letter-spacing: 0.2em;
}

.sg-footer-nav a {
  color: #4b6274;
  font-size: 11px;
  letter-spacing: 0.08em;
  transition:
    color 0.2s ease,
    transform 0.2s ease;
}

.sg-footer-nav a:hover,
.sg-footer-nav a:focus-visible {
  color: var(--sg-ai);
  transform: translateX(4px);
}

.sg-footer-bottom {
  display: grid;
  min-height: 74px;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border-top: 1px solid rgba(12, 49, 88, 0.12);
  color: #7b8d99;
  font-size: 9px;
  letter-spacing: 0.13em;
}

.sg-footer-bottom a {
  justify-self: end;
}

/* Reveal system */
.sg-motion-ready [data-reveal] {
  opacity: 0;
  transform: translate3d(0, 42px, 0);
}

.sg-motion-ready [data-reveal].is-visible {
  animation: sgReveal 0.95s cubic-bezier(0.2, 0.72, 0.23, 1) both;
}

.sg-motion-ready .sg-business-card.is-visible {
  animation-delay: var(--card-delay, 0ms);
}

/* Motion */
@keyframes sgHeroBreath {
  from {
    transform:
      translate3d(var(--hero-x), var(--hero-y), 0)
      scale(1.055);
  }
  to {
    transform:
      translate3d(calc(var(--hero-x) - 8px), calc(var(--hero-y) - 5px), 0)
      scale(1.095);
  }
}

@keyframes sgCloudDrift {
  from {
    opacity: 0.28;
    transform: translate3d(-8%, 0, 0) scale(0.94);
  }
  to {
    opacity: 0.65;
    transform: translate3d(18%, 8%, 0) scale(1.13);
  }
}

@keyframes sgLightPulse {
  0%,
  100% {
    opacity: 0.4;
    transform: scale(0.92);
  }
  50% {
    opacity: 0.82;
    transform: scale(1.08);
  }
}

@keyframes sgFadeDown {
  from {
    opacity: 0;
    transform: translate3d(0, -16px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@keyframes sgHeroCopyIn {
  from {
    opacity: 0;
    filter: blur(18px);
    transform: translate3d(0, 18px, 0) scale(0.985);
  }
  to {
    opacity: 1;
    filter: blur(0);
    transform: translate3d(0, 0, 0) scale(1);
  }
}

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

@keyframes sgReveal {
  from {
    opacity: 0;
    transform: translate3d(0, 42px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@keyframes sgOrbitSpin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes sgOrbitSpinReverse {
  to {
    transform: rotate(-360deg);
  }
}

@keyframes sgNodeFloat {
  0%,
  100% {
    transform: translateY(-4px);
  }
  50% {
    transform: translateY(6px);
  }
}

/* Responsive */
@media (max-width: 1180px) {
  .sg-nav {
    gap: 20px;
  }

  .sg-hero-index {
    display: none;
  }

  .sg-business-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .sg-business-card {
    min-height: 470px;
    grid-column: auto;
  }

  .sg-business-card:nth-child(4),
  .sg-business-card:nth-child(5) {
    min-height: 450px;
    grid-column: auto;
  }
}

@media (max-width: 920px) {
  .sg-nav {
    display: none;
  }

  .sg-mobile-menu {
    display: block;
  }

  .sg-mobile-menu summary {
    display: flex;
    width: 80px;
    height: 42px;
    align-items: center;
    justify-content: space-between;
    color: #fff;
    cursor: pointer;
    font-size: 10px;
    font-weight: 750;
    letter-spacing: 0.15em;
    list-style: none;
  }

  .sg-mobile-menu summary::-webkit-details-marker {
    display: none;
  }

  .sg-mobile-menu summary i,
  .sg-mobile-menu summary i::before {
    display: block;
    width: 22px;
    height: 1px;
    background: currentColor;
    content: "";
  }

  .sg-mobile-menu summary i::before {
    transform: translateY(6px);
  }

  .sg-mobile-menu nav {
    position: absolute;
    top: 82px;
    right: 24px;
    display: grid;
    width: min(330px, calc(100vw - 48px));
    padding: 18px 22px;
    color: var(--sg-ai-deep);
    background: rgba(250, 252, 251, 0.97);
    box-shadow: 0 24px 60px rgba(3, 24, 48, 0.18);
  }

  .sg-mobile-menu nav a {
    padding: 13px 2px;
    border-bottom: 1px solid rgba(12, 49, 88, 0.1);
    font-size: 12px;
    letter-spacing: 0.08em;
  }

  .sg-hero-copy {
    width: min(72vw, 650px);
  }

  .sg-vision-grid,
  .sg-vision-manifesto,
  .sg-section-heading,
  .sg-join-intro,
  .sg-company-panel,
  .sg-footer-main {
    grid-template-columns: 1fr;
  }

  .sg-vision-statement {
    max-width: 650px;
    padding-right: 24px;
  }

  .sg-vision-orbit {
    width: min(84vw, 610px);
  }

  .sg-section-heading {
    align-items: start;
  }

  .sg-section-heading > p {
    max-width: 640px;
  }

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

  .sg-join-intro {
    gap: 30px;
  }

  .sg-join-grid {
    grid-template-columns: 1fr;
  }

  .sg-join-card {
    min-height: 580px;
  }

  .sg-company-panel {
    min-height: 0;
  }

  .sg-company-visual {
    min-height: 500px;
    border-top: 1px solid rgba(12, 49, 88, 0.11);
    border-left: 0;
  }

  .sg-footer-main {
    gap: 60px;
  }
}

@media (max-width: 640px) {
  .sg-shell {
    padding-inline: 24px;
  }

  .sg-section {
    padding-block: 100px;
  }

  .sg-section-label {
    margin-bottom: 52px;
    flex-wrap: wrap;
  }

  .sg-section-label > small {
    width: 100%;
    margin: 4px 0 0 72px;
  }

  .sg-hero {
    min-height: 820px;
    padding: 126px 26px 142px 30px;
  }

  .sg-hero-media > img {
    object-position: 67% center;
  }

  .sg-hero-tint {
    background:
      linear-gradient(
        180deg,
        rgba(4, 25, 50, 0.76) 0%,
        rgba(4, 25, 50, 0.48) 38%,
        rgba(4, 25, 50, 0.56) 66%,
        rgba(4, 25, 50, 0.9) 100%
      ),
      linear-gradient(90deg, rgba(4, 25, 50, 0.62), transparent 82%);
  }

  .sg-header {
    height: 82px;
    padding: 0 22px 0 30px;
  }

  .sg-header-brand {
    width: 170px;
  }

  .sg-hero-copy {
    width: 100%;
    padding-bottom: 0;
  }

  .sg-hero-kicker {
    gap: 10px;
    font-size: 8px;
    letter-spacing: 0.17em;
  }

  .sg-hero-kicker span:last-child {
    display: none;
  }

  .sg-hero-copy h1 {
    font-size: clamp(27px, 8.8vw, 44px);
    line-height: 1.28;
  }

  .sg-hero-copy > p:not(.sg-hero-kicker) {
    font-size: 13px;
    line-height: 1.9;
  }

  .sg-hero-copy > p br {
    display: none;
  }

  .sg-button {
    min-width: 188px;
    height: 54px;
  }

  .sg-scroll {
    display: none;
  }

  .sg-vision-statement h2,
  .sg-section-heading h2 {
    font-size: clamp(40px, 11.8vw, 55px);
  }

  .sg-vision-lead {
    font-size: 15px;
  }

  .sg-vision-orbit {
    width: min(94vw, 390px);
  }

  .sg-orbit-node {
    width: 124px;
    min-height: 48px;
    padding: 8px 10px;
  }

  .sg-orbit-node img {
    width: min(100%, 106px);
  }

  .sg-orbit-node-1 {
    left: 36%;
  }

  .sg-orbit-node-2 {
    right: -2%;
  }

  .sg-orbit-node-3 {
    right: 2%;
  }

  .sg-orbit-node-4 {
    left: 2%;
  }

  .sg-orbit-node-5 {
    left: -2%;
  }

  .sg-vision-manifesto {
    margin-top: 68px;
    gap: 46px;
  }

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

  .sg-business-card,
  .sg-business-card:nth-child(4),
  .sg-business-card:nth-child(5) {
    min-height: 445px;
    padding: 24px;
  }

  .sg-business-logo {
    min-height: 118px;
    margin-block: 22px;
  }

  .sg-join {
    padding-top: 94px;
  }

  .sg-join-intro {
    padding-bottom: 64px;
  }

  .sg-join-intro > p br {
    display: none;
  }

  .sg-join-card {
    min-height: 560px;
    padding: 54px 27px;
  }

  .sg-join-card h2 {
    font-size: clamp(39px, 11vw, 53px);
  }

  .sg-join-art {
    right: -36%;
    width: 110vw;
  }

  .sg-company-panel {
    margin-inline: -4px;
  }

  .sg-company-copy {
    padding: 54px 27px 62px;
  }

  .sg-company-copy h2 {
    font-size: clamp(39px, 11vw, 53px);
  }

  .sg-company-visual {
    min-height: 390px;
  }

  .sg-company-visual img {
    width: min(66%, 280px);
  }

  .sg-company-visual > span {
    right: 20px;
    bottom: 20px;
  }

  .sg-footer-main {
    padding-block: 76px;
  }

  .sg-footer-nav {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .sg-footer-bottom {
    min-height: 112px;
    padding-block: 22px;
    grid-template-columns: 1fr auto;
    gap: 12px;
  }

  .sg-footer-bottom span:nth-child(2) {
    grid-row: 2;
    grid-column: 1 / span 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sg-home *,
  .sg-home *::before,
  .sg-home *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .sg-motion-ready [data-reveal] {
    opacity: 1;
    transform: none;
  }
}