:root {
  --green: #00cf6c;
  --green-dark: #00a958;
  --ink: #0a0a0a;
  --muted: #606362;
  --line: #c9cdcb;
  --soft-line: #e8ebe9;
  --white: #ffffff;
  --page-gutter: clamp(1.25rem, 5vw, 5rem);
  --max-width: 96rem;
  --header-height: 6rem;
  --focus: #005fcc;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 20rem;
  background: var(--white);
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

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

::selection {
  background: var(--green);
  color: var(--ink);
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 1rem;
  left: 1rem;
  padding: 0.7rem 1rem;
  background: var(--ink);
  color: var(--white);
  transform: translateY(-180%);
  transition: transform 160ms ease;
}

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

.section-shell {
  width: min(100%, var(--max-width));
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}

.site-header {
  position: relative;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  padding-inline: var(--page-gutter);
  background: var(--white);
  border-bottom: 1px solid var(--soft-line);
}

.brand,
.site-footer__brand,
.site-footer__brand {
  font-size: clamp(1.7rem, 2.5vw, 2.25rem);
  font-weight: 850;
  line-height: 1;
  letter-spacing: -0.065em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 4vw, 4.5rem);
  font-size: 1rem;
  font-weight: 700;
}

.site-nav a,
.site-footer__nav a {
  position: relative;
  padding-block: 0.35rem;
}

.site-nav a::after,
.site-footer__nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-footer__nav a:hover::after,
.site-footer__nav a:focus-visible::after,
.site-footer__nav a[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-button {
  display: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(25rem, 0.9fr);
  gap: clamp(3rem, 7vw, 8rem);
  align-items: center;
  min-height: calc(100svh - var(--header-height));
  padding-block: clamp(4rem, 10vh, 8rem);
}

.hero__copy {
  max-width: 46rem;
}

.hero h1,
.capabilities h2,
.about__statement,
.legal-page h1 {
  margin: 0;
  font-size: clamp(3.6rem, 7vw, 7.6rem);
  font-weight: 850;
  line-height: 0.98;
  letter-spacing: -0.065em;
}

.hero__copy > p {
  max-width: 43rem;
  margin: clamp(2rem, 4vw, 3.25rem) 0 0;
  font-size: clamp(1.1rem, 1.6vw, 1.55rem);
  line-height: 1.75;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: clamp(2rem, 4vw, 3rem);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 10.5rem;
  min-height: 3.8rem;
  padding: 0.85rem 1.4rem;
  border: 2px solid var(--green);
  font-size: 1rem;
  font-weight: 750;
  line-height: 1;
  transition: background-color 160ms ease, color 160ms ease, transform 160ms ease;
}

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

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

.button--primary:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--white);
}

.button--outline {
  background: var(--white);
  color: var(--green-dark);
}

.button--outline:hover {
  background: var(--green);
  color: var(--ink);
}

.hero-art {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 0.78fr;
  grid-template-rows: 1fr 0.86fr;
  aspect-ratio: 1 / 1;
  max-height: 42rem;
  border: 1.5px solid var(--green-dark);
}

.hero-art__tile {
  position: relative;
  overflow: hidden;
  border-right: 1.5px solid var(--green-dark);
  border-bottom: 1.5px solid var(--green-dark);
}

.hero-art__tile:nth-child(2),
.hero-art__tile:nth-child(4) {
  border-right: 0;
}

.hero-art__tile:nth-child(3),
.hero-art__tile:nth-child(4) {
  border-bottom: 0;
}

.hero-art__tile--arc {
  background: var(--green);
}

.hero-art__tile--arc::after {
  content: "";
  position: absolute;
  width: 150%;
  height: 150%;
  right: -92%;
  bottom: -92%;
  background: var(--white);
  border-radius: 50%;
}

.hero-art__tile--arc::before {
  content: "";
  position: absolute;
  z-index: 2;
  right: -1px;
  bottom: -1px;
  width: 42%;
  aspect-ratio: 1;
  border: 1.5px solid var(--green-dark);
  border-radius: 100% 0 0 0;
  border-right: 0;
  border-bottom: 0;
}

.hero-art__tile--spark {
  display: grid;
  place-items: center;
}

.spark {
  display: block;
  width: 26%;
  aspect-ratio: 1;
  background: var(--green);
  clip-path: polygon(50% 0, 61% 38%, 100% 50%, 61% 62%, 50% 100%, 39% 62%, 0 50%, 39% 38%);
  animation: spark-breathe 4.8s ease-in-out infinite;
}

.hero-art__tile--diagonal {
  background: linear-gradient(135deg, var(--white) 0 49.8%, var(--green) 50% 100%);
}

.hero-art__tile--lines {
  background: repeating-linear-gradient(90deg, var(--white) 0 9%, var(--green-dark) 9.2% 9.7%);
}

.hero-art__point {
  position: absolute;
  width: 0.8rem;
  height: 0.8rem;
  background: var(--green-dark);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.hero-art__point--one {
  top: 0;
  right: -0.8rem;
}

.hero-art__point--two {
  top: 54%;
  left: 0;
}

.hero-art__point--three {
  right: -0.8rem;
  bottom: -0.8rem;
}

@keyframes spark-breathe {
  0%, 100% { transform: rotate(0) scale(1); }
  50% { transform: rotate(12deg) scale(1.12); }
}

.capabilities {
  padding-block: clamp(6rem, 11vw, 11rem);
}

.capabilities h2 {
  max-width: 68rem;
  font-size: clamp(3.2rem, 6vw, 6.2rem);
}

.capability-list {
  margin-top: clamp(3.5rem, 7vw, 7rem);
  border-top: 1px solid var(--line);
}

.capability-row {
  display: grid;
  grid-template-columns: 10rem minmax(16rem, 1fr) minmax(18rem, 0.8fr);
  gap: clamp(1.5rem, 4vw, 5rem);
  align-items: center;
  padding-block: clamp(2.4rem, 4vw, 4rem);
  border-bottom: 1px solid var(--line);
}

.capability-row__number {
  margin: 0;
  color: var(--green-dark);
  font-size: clamp(3.5rem, 6vw, 6.2rem);
  font-weight: 800;
  line-height: 0.85;
  letter-spacing: -0.06em;
}

.capability-row h3 {
  margin: 0;
  font-size: clamp(1.5rem, 2.3vw, 2.4rem);
  line-height: 1.2;
  letter-spacing: -0.035em;
}

.capability-row > p:last-child {
  margin: 0;
  color: #303331;
  font-size: clamp(1rem, 1.4vw, 1.25rem);
}

.project {
  background: var(--green);
  color: var(--ink);
}

.project__inner {
  display: grid;
  grid-template-columns: minmax(17rem, 0.85fr) minmax(20rem, 1fr) auto;
  gap: clamp(2rem, 6vw, 7rem);
  align-items: center;
  min-height: 27rem;
  padding-block: clamp(4rem, 7vw, 7rem);
}

.project h2 {
  margin: 0;
  font-size: clamp(4.8rem, 8vw, 8.5rem);
  font-weight: 650;
  line-height: 0.9;
  letter-spacing: -0.07em;
}

.project p {
  max-width: 34rem;
  margin: 0;
  font-size: clamp(1.1rem, 1.5vw, 1.35rem);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  width: fit-content;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid currentColor;
  font-weight: 750;
}

.text-link svg {
  width: 1.4rem;
  height: 1.4rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 160ms ease;
}

.text-link:hover svg {
  transform: translateX(0.25rem);
}

.text-link--light {
  color: var(--ink);
}

.about {
  padding-block: clamp(6rem, 11vw, 11rem);
}

.section-index {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  color: var(--green-dark);
  font-size: 1rem;
  font-weight: 750;
}

.section-index::after {
  content: "";
  width: 3rem;
  height: 2px;
  margin-left: 0.25rem;
  background: var(--green-dark);
}

.section-index h2 {
  order: 2;
  margin: 0;
  font: inherit;
}

.section-index::after {
  order: 3;
}

.about__grid {
  display: grid;
  grid-template-columns: minmax(18rem, 0.55fr) minmax(28rem, 1.1fr);
  gap: clamp(3rem, 8vw, 9rem);
  align-items: start;
  margin-top: clamp(2.5rem, 5vw, 5rem);
}

.about__body {
  margin: 0;
  font-size: clamp(1.1rem, 1.5vw, 1.35rem);
  line-height: 1.85;
}

.about__statement {
  margin: 0;
  font-size: clamp(3.4rem, 6.7vw, 7.2rem);
}

.company-contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
}

.company-contact__column {
  min-width: 0;
  padding: clamp(3rem, 6vw, 6rem) var(--page-gutter);
}

.company-contact__column:first-child {
  border-right: 1px solid var(--line);
}

.definition-list {
  margin: clamp(2.5rem, 5vw, 4.5rem) 0 2.5rem;
}

.definition-list > div {
  display: grid;
  grid-template-columns: minmax(8rem, 0.7fr) minmax(13rem, 1.3fr);
  gap: 1.5rem;
  padding-block: 1.1rem;
  border-bottom: 1px solid var(--line);
}

.definition-list dt {
  font-weight: 700;
}

.definition-list dd {
  margin: 0;
}

.contact-lead {
  max-width: 34rem;
  margin: clamp(2.5rem, 5vw, 4.5rem) 0 2rem;
  font-size: clamp(1.15rem, 1.5vw, 1.4rem);
}

address {
  color: #323532;
  font-style: normal;
  line-height: 1.9;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: clamp(2rem, 5vw, 6rem);
  align-items: center;
  min-height: 12rem;
  padding: 3rem var(--page-gutter);
  background: var(--green);
  color: var(--ink);
}

.site-footer__brand {
  font-size: clamp(2.8rem, 5vw, 5.2rem);
}

.site-footer__nav {
  display: flex;
  gap: clamp(1.5rem, 4vw, 4rem);
  font-weight: 700;
}

.site-footer > p {
  margin: 0;
  text-align: right;
  font-size: 0.95rem;
}

.legal-page__header {
  padding-top: clamp(4rem, 9vw, 9rem);
  padding-bottom: clamp(5rem, 10vw, 10rem);
}

.legal-page__label,
.legal-page__date {
  margin: 0 0 1.5rem;
  color: var(--green-dark);
  font-size: 0.95rem;
  font-weight: 750;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.legal-page h1 {
  font-size: clamp(4rem, 8vw, 8rem);
}

.legal-page__intro {
  max-width: 58rem;
  margin: clamp(2.5rem, 5vw, 5rem) 0 0;
  font-size: clamp(1.25rem, 2vw, 1.8rem);
  line-height: 1.7;
}

.legal-page__english {
  max-width: 58rem;
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: 1rem;
}

.legal-page__section {
  padding-block: clamp(4rem, 8vw, 8rem);
  border-top: 1px solid var(--line);
}

.legal-page__section h2,
.privacy-copy h2 {
  margin: 0 0 clamp(2rem, 4vw, 4rem);
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1.12;
  letter-spacing: -0.045em;
}

.legal-page__section > p {
  max-width: 70rem;
  margin: 0;
  font-size: clamp(1.1rem, 1.5vw, 1.35rem);
  line-height: 1.9;
}

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

.detail-list > div {
  display: grid;
  grid-template-columns: minmax(12rem, 0.35fr) minmax(20rem, 1fr);
  gap: 2rem;
  padding-block: 1.35rem;
  border-bottom: 1px solid var(--line);
}

.detail-list dt {
  font-weight: 750;
}

.detail-list dd {
  margin: 0;
}

.legal-page__section--green {
  width: 100%;
  max-width: none;
  padding-inline: max(var(--page-gutter), calc((100% - var(--max-width)) / 2 + var(--page-gutter)));
  background: var(--green);
  border-top: 0;
}

.legal-page__section--green .text-link {
  margin-top: 2.5rem;
}

.privacy-page .legal-page__header {
  padding-bottom: clamp(4rem, 8vw, 7rem);
}

.privacy-copy {
  max-width: 82rem;
  padding-bottom: clamp(5rem, 10vw, 10rem);
}

.privacy-copy section {
  display: grid;
  grid-template-columns: minmax(18rem, 0.65fr) minmax(22rem, 1fr);
  gap: clamp(2rem, 7vw, 8rem);
  padding-block: clamp(2.5rem, 5vw, 5rem);
  border-top: 1px solid var(--line);
}

.privacy-copy h2 {
  margin: 0;
  font-size: clamp(1.45rem, 2.4vw, 2.4rem);
}

.privacy-copy p,
.privacy-copy address {
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.9;
}

.error-page {
  display: grid;
  min-height: 100svh;
  place-items: center;
  padding: var(--page-gutter);
}

.error-page main {
  width: min(100%, 60rem);
}

.error-page__code {
  margin: clamp(4rem, 10vw, 8rem) 0 0;
  color: var(--green-dark);
  font-size: clamp(6rem, 18vw, 15rem);
  font-weight: 850;
  line-height: 0.8;
  letter-spacing: -0.08em;
}

.error-page h1 {
  margin: 2rem 0 0;
  font-size: clamp(2.5rem, 5vw, 5rem);
  line-height: 1.05;
  letter-spacing: -0.05em;
}

.error-page main > p:not(.error-page__code) {
  margin: 1.5rem 0 2.5rem;
  font-size: 1.15rem;
}

@media (max-width: 68rem) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero__copy {
    max-width: 53rem;
  }

  .hero-art {
    width: min(100%, 42rem);
    justify-self: end;
  }

  .capability-row {
    grid-template-columns: 7rem 1fr;
  }

  .capability-row > p:last-child {
    grid-column: 2;
  }

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

  .project__inner .text-link {
    grid-column: 2;
  }

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

  .site-footer > p {
    grid-column: 1 / -1;
    text-align: left;
  }
}

@media (max-width: 48rem) {
  :root {
    --header-height: 4.8rem;
  }

  .site-header {
    min-height: var(--header-height);
  }

  .menu-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.55rem 0;
    background: transparent;
    border: 0;
    color: var(--ink);
    font-size: 0.9rem;
    font-weight: 750;
    cursor: pointer;
  }

  .menu-button__lines,
  .menu-button__lines::before {
    display: block;
    width: 1.5rem;
    height: 2px;
    background: currentColor;
    transition: transform 160ms ease;
  }

  .menu-button__lines {
    position: relative;
    transform: translateY(-3px);
  }

  .menu-button__lines::before {
    content: "";
    position: absolute;
    top: 6px;
    left: 0;
  }

  .menu-button[aria-expanded="true"] .menu-button__lines {
    transform: rotate(45deg);
  }

  .menu-button[aria-expanded="true"] .menu-button__lines::before {
    top: 0;
    transform: rotate(90deg);
  }

  .site-nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0 var(--page-gutter) 1.2rem;
    background: var(--white);
    border-bottom: 1px solid var(--line);
  }

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

  .site-nav a {
    padding-block: 1rem;
    border-top: 1px solid var(--soft-line);
  }

  .site-nav a::after {
    display: none;
  }

  .hero {
    gap: 3.5rem;
    padding-top: 4.5rem;
  }

  .hero h1,
  .capabilities h2,
  .legal-page h1 {
    font-size: clamp(3.2rem, 15vw, 5.4rem);
  }

  .hero-art {
    width: 100%;
  }

  .capabilities {
    padding-block: 6rem;
  }

  .capabilities h2 {
    font-size: clamp(3rem, 13vw, 4.8rem);
  }

  .capability-row {
    grid-template-columns: 4.8rem 1fr;
    gap: 1.25rem;
    padding-block: 2.2rem;
  }

  .capability-row__number {
    font-size: 3.3rem;
  }

  .capability-row h3 {
    font-size: 1.35rem;
  }

  .capability-row > p:last-child {
    margin-top: -0.4rem;
  }

  .project__inner {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .project h2 {
    font-size: clamp(4.7rem, 20vw, 7rem);
  }

  .project__inner .text-link {
    grid-column: auto;
  }

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

  .about__statement {
    font-size: clamp(3.3rem, 14vw, 5.5rem);
  }

  .company-contact {
    grid-template-columns: 1fr;
  }

  .company-contact__column:first-child {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .definition-list > div,
  .detail-list > div {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }

  .definition-list dt,
  .detail-list dt {
    color: var(--muted);
    font-size: 0.88rem;
  }

  .site-footer {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .site-footer__nav {
    flex-wrap: wrap;
  }

  .site-footer > p {
    grid-column: auto;
  }

  .privacy-copy section {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
}

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

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

@media print {
  .site-header,
  .site-footer,
  .button-row,
  .menu-button {
    display: none !important;
  }

  body {
    color: #000;
  }

  .legal-page__header,
  .legal-page__section,
  .privacy-copy section {
    padding-block: 2rem;
  }

  .legal-page__section--green {
    background: #fff;
    color: #000;
    border-top: 1px solid #999;
  }
}