:root {
  --ink: #17211d;
  --ink-soft: #53605a;
  --paper: #ffffff;
  --mist: #f3f6f3;
  --line: #dce3df;
  --orange: #f15a24;
  --orange-dark: #ce4310;
  --yellow: #fbb03b;
  --green: #39b54a;
  --green-dark: #1d5639;
  --max-width: 1180px;
  --header-height: 88px;
  --shadow: 0 24px 60px rgba(23, 33, 29, 0.08);
}

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

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

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Yu Gothic", "YuGothic", "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

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

button {
  font: inherit;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  line-height: 1.35;
  letter-spacing: 0.025em;
}

ul,
ol {
  margin-top: 0;
}

.container {
  width: min(calc(100% - 48px), var(--max-width));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 8px;
  left: 8px;
  padding: 10px 16px;
  color: #fff;
  background: var(--ink);
  border-radius: 4px;
  transform: translateY(-150%);
}

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

.site-header {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(14px);
  transition: height 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.site-header.is-scrolled {
  height: 76px;
  border-color: var(--line);
  box-shadow: 0 8px 30px rgba(23, 33, 29, 0.04);
}

.header-inner {
  width: min(calc(100% - 48px), 1380px);
  height: 100%;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  flex: 0 1 290px;
  min-width: 205px;
}

.brand img {
  width: 100%;
  height: auto;
}

.global-nav {
  display: flex;
  align-items: center;
  gap: clamp(20px, 3vw, 52px);
}

.global-nav ul {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.2vw, 38px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.global-nav li a {
  position: relative;
  display: block;
  padding: 12px 0;
  font-size: 0.87rem;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.05em;
}

.global-nav li a::after {
  position: absolute;
  content: "";
  right: 0;
  bottom: 5px;
  left: 0;
  height: 2px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.25s ease;
}

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

.header-contact {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 10px 25px;
  color: #fff;
  background: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 2px;
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease, background 0.2s ease;
}

.header-contact:hover,
.header-contact:focus-visible {
  color: var(--ink);
  background: #fff;
}

.menu-button {
  display: none;
  border: 0;
  background: transparent;
}

.hero {
  position: relative;
  min-height: min(900px, 100svh);
  padding: calc(var(--header-height) + 64px) 0 70px;
  overflow: hidden;
  background:
    linear-gradient(rgba(23, 33, 29, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 33, 29, 0.035) 1px, transparent 1px),
    linear-gradient(135deg, #fff 0%, #fff 56%, #f4f7f4 56%, #f4f7f4 100%);
  background-size: 64px 64px, 64px 64px, auto;
}

.hero::before {
  position: absolute;
  content: "";
  width: 38vw;
  height: 38vw;
  min-width: 420px;
  min-height: 420px;
  right: -13vw;
  top: 5vh;
  border-radius: 50%;
  border: 1px solid rgba(78, 157, 105, 0.22);
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: min(calc(100% - 48px), var(--max-width));
  min-height: 650px;
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(380px, 0.82fr);
  align-items: center;
  gap: 32px;
}

.eyebrow,
.section-en {
  margin-bottom: 18px;
  color: var(--green-dark);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.24em;
}

.eyebrow::before {
  display: inline-block;
  width: 38px;
  height: 2px;
  margin-right: 12px;
  background: var(--orange);
  content: "";
  vertical-align: middle;
}

.hero h1 {
  margin-bottom: 32px;
  font-size: clamp(2.75rem, 4.4vw, 4rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.28;
}

.hero h1 span {
  position: relative;
  z-index: 0;
  display: inline-block;
  white-space: nowrap;
}

.hero h1 span::after {
  position: absolute;
  z-index: -1;
  content: "";
  right: -2px;
  bottom: 8px;
  left: -2px;
  height: 14px;
  background: linear-gradient(90deg, rgba(238, 107, 47, 0.24), rgba(239, 191, 53, 0.28), rgba(78, 157, 105, 0.24));
}

.hero-lead {
  margin-bottom: 42px;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.5vw, 1.17rem);
  line-height: 2.05;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  min-width: 240px;
  min-height: 62px;
  padding: 14px 22px 14px 28px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-size: 0.96rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.2s ease, color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

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

.button--primary {
  color: #fff;
  background: var(--orange);
  box-shadow: 0 15px 35px rgba(238, 107, 47, 0.2);
}

.button--primary:hover,
.button--primary:focus-visible {
  background: var(--orange-dark);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--ink);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

.hero-visual {
  position: relative;
  width: min(38vw, 470px);
  aspect-ratio: 1;
  justify-self: end;
}

.orbit {
  position: absolute;
  border-radius: 50%;
}

.orbit--outer {
  inset: 2%;
  border: 1px solid rgba(23, 33, 29, 0.16);
}

.orbit--outer::before,
.orbit--outer::after,
.orbit--inner::before {
  position: absolute;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  content: "";
}

.orbit--outer::before {
  top: 13%;
  left: 13%;
  background: var(--orange);
}

.orbit--outer::after {
  right: -5px;
  top: 50%;
  background: var(--green);
}

.orbit--inner {
  inset: 17%;
  border: 1px dashed rgba(23, 33, 29, 0.24);
  animation: rotate 28s linear infinite;
}

.orbit--inner::before {
  right: 18%;
  bottom: 2%;
  background: var(--yellow);
}

.visual-core {
  position: absolute;
  inset: 29%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  background: var(--ink);
  border-radius: 50%;
  color: #fff;
  box-shadow: 0 28px 80px rgba(23, 33, 29, 0.22);
  font-family: Arial, Helvetica, sans-serif;
  font-size: clamp(0.63rem, 1.1vw, 0.78rem);
  font-weight: 800;
  letter-spacing: 0.14em;
}

.visual-core strong {
  color: var(--yellow);
  font-size: 1.25rem;
}

.visual-label {
  position: absolute;
  padding: 7px 12px;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.8);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.64rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.visual-label--one {
  top: 19%;
  right: 6%;
}

.visual-label--two {
  right: 11%;
  bottom: 16%;
}

.visual-label--three {
  bottom: 14%;
  left: 4%;
}

.visual-dot {
  position: absolute;
  border-radius: 50%;
  box-shadow: 0 8px 24px rgba(23, 33, 29, 0.14);
}

.visual-dot--orange {
  width: 48px;
  height: 48px;
  top: 16%;
  left: 13%;
  background: var(--orange);
}

.visual-dot--yellow {
  width: 26px;
  height: 26px;
  top: 7%;
  right: 30%;
  background: var(--yellow);
}

.visual-dot--green {
  width: 38px;
  height: 38px;
  right: 12%;
  bottom: 33%;
  background: var(--green);
}

.hero-bottom {
  position: absolute;
  z-index: 2;
  bottom: 0;
  left: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: translateX(-50%);
}

.hero-bottom p {
  margin-bottom: 8px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  writing-mode: vertical-rl;
}

.hero-bottom span {
  display: block;
  width: 1px;
  height: 38px;
  background: var(--ink);
}

.section {
  position: relative;
  padding: 140px 0;
}

.section-number {
  margin-bottom: 8px;
  color: var(--orange);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.section-heading h2 {
  margin-bottom: 24px;
  font-size: clamp(2rem, 3.6vw, 3.4rem);
  font-weight: 700;
}

.section-heading > p:last-child,
.section-heading > div > p:last-child {
  color: var(--ink-soft);
}

.section-heading--horizontal {
  display: grid;
  grid-template-columns: 0.46fr 1.54fr;
  align-items: end;
  margin-bottom: 68px;
}

.section-heading--horizontal h2 {
  margin-bottom: 10px;
}

.section-heading--horizontal p {
  margin-bottom: 0;
}

.section-heading--center {
  margin-bottom: 64px;
  text-align: center;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.94fr) minmax(0, 1.06fr);
  gap: clamp(56px, 9vw, 120px);
}

.about-copy {
  padding-top: 60px;
}

.about-copy .lead {
  margin-bottom: 28px;
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  font-weight: 700;
  line-height: 1.8;
}

.about-copy > p:not(.lead) {
  color: var(--ink-soft);
}

.about-principle {
  display: flex;
  align-items: center;
  margin-top: 44px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.about-principle span {
  flex: 0 0 auto;
  font-size: 0.88rem;
  font-weight: 700;
}

.about-principle i {
  width: 100%;
  height: 1px;
  margin: 0 12px;
  background: linear-gradient(90deg, var(--orange), var(--yellow), var(--green));
}

.technology-visuals {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 24px;
  margin-top: 88px;
}

.technology-visual {
  position: relative;
  min-height: 310px;
  margin: 0;
  overflow: hidden;
  background: var(--ink);
}

.technology-visual--wide {
  grid-column: 1 / -1;
  min-height: 480px;
}

.technology-visual img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.8;
  transition: opacity 0.35s ease, transform 0.55s ease;
}

.technology-visual--wide img {
  object-position: 48% center;
  opacity: 1;
}

.technology-visual--wide:hover img {
  opacity: 1;
}

.technology-visual--design img {
  object-position: center 42%;
}

.technology-visual::after {
  position: absolute;
  content: "";
  inset: 34% 0 0;
  background: linear-gradient(transparent, rgba(10, 17, 14, 0.92));
  pointer-events: none;
}

.technology-visual:hover img {
  opacity: 0.9;
  transform: scale(1.025);
}

.technology-visual figcaption {
  position: absolute;
  z-index: 1;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 38px 40px 32px;
  color: #fff;
}

.technology-visual figcaption span {
  display: block;
  margin-bottom: 7px;
  color: var(--yellow);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.technology-visual figcaption strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.35rem;
  letter-spacing: 0.04em;
}

.technology-visual figcaption p {
  max-width: 34em;
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.82rem;
  line-height: 1.75;
}

.section--services {
  background: var(--mist);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.service-card {
  position: relative;
  min-height: 500px;
  padding: 48px;
  overflow: hidden;
  background: #fff;
  border: 1px solid transparent;
  box-shadow: 0 8px 35px rgba(23, 33, 29, 0.035);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.service-card:hover {
  transform: translateY(-5px);
  border-color: var(--line);
  box-shadow: var(--shadow);
}

.service-index {
  position: absolute;
  top: 28px;
  right: 34px;
  color: #cbd2ce;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.service-icon {
  display: grid;
  width: 72px;
  height: 72px;
  place-items: center;
  margin-bottom: 32px;
  color: #fff;
  background: var(--orange);
  border-radius: 50%;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.service-icon--yellow {
  color: var(--ink);
  background: var(--yellow);
}

.service-icon--green {
  background: var(--green);
}

.service-icon--mix {
  background: linear-gradient(135deg, var(--orange), var(--yellow) 52%, var(--green));
}

.service-card h3 {
  margin-bottom: 18px;
  font-size: clamp(1.42rem, 2vw, 1.85rem);
}

.service-card > p:not(.service-index) {
  color: var(--ink-soft);
}

.service-card ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.service-card li {
  padding: 5px 11px;
  background: var(--mist);
  border-radius: 2px;
  color: var(--ink-soft);
  font-size: 0.77rem;
  font-weight: 700;
}

.oss-capability {
  display: grid;
  grid-template-columns: minmax(280px, 0.75fr) minmax(0, 1.25fr);
  gap: clamp(40px, 6vw, 78px);
  margin-top: 32px;
  padding: 48px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
}

.oss-capability .section-en {
  color: var(--green-dark);
}

.oss-capability h3 {
  margin-bottom: 20px;
  font-size: clamp(1.65rem, 2.8vw, 2.35rem);
}

.oss-capability__intro > p:last-child {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.oss-capability__label {
  margin-bottom: 18px;
  color: var(--ink-soft);
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.oss-capability__products ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.oss-capability__products li {
  padding: 17px 12px 17px 0;
  border-bottom: 1px solid var(--line);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.94rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.oss-capability__products li:nth-child(odd) {
  border-right: 1px solid var(--line);
}

.oss-capability__products li:nth-child(even) {
  padding-left: 18px;
}

.oss-capability__products li span {
  display: inline-block;
  min-width: 30px;
  color: var(--orange);
  font-size: 0.62rem;
}

.trademark-note {
  margin: 18px 0 0;
  color: #77827c;
  font-size: 0.65rem;
  line-height: 1.7;
}

.fields-grid {
  display: grid;
  grid-template-columns: 0.68fr 1.32fr;
  gap: clamp(60px, 10vw, 140px);
}

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

.field-item {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) auto;
  align-items: center;
  gap: 26px;
  padding: 34px 4px;
  border-bottom: 1px solid var(--line);
}

.field-index {
  margin: 0;
  color: var(--orange);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.72rem;
  font-weight: 800;
}

.field-item h3 {
  margin-bottom: 10px;
  font-size: 1.45rem;
}

.field-item div p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.field-item > span {
  color: #c7cfca;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  writing-mode: vertical-rl;
}

.section--strengths {
  color: #fff;
  background: var(--ink);
}

.section--strengths .section-en {
  color: #b5c6bc;
}

.strength-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.14);
}

.strength-card {
  min-height: 410px;
  padding: 48px 42px;
  background: var(--ink);
}

.strength-number {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  margin-bottom: 48px;
  color: #fff;
  background: var(--orange);
  border-radius: 50%;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.75rem;
  font-weight: 800;
}

.strength-number--yellow {
  color: var(--ink);
  background: var(--yellow);
}

.strength-number--green {
  background: var(--green);
}

.strength-card h3 {
  margin-bottom: 26px;
  font-size: 1.6rem;
}

.strength-card > p:last-child {
  margin: 0;
  color: #b9c5bf;
  font-size: 0.93rem;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  list-style: none;
}

.process-list li {
  position: relative;
  min-height: 300px;
  padding: 36px 25px;
  border-right: 1px solid var(--line);
}

.process-list li:last-child {
  border-right: 0;
}

.process-list li:not(:last-child)::after {
  position: absolute;
  z-index: 1;
  content: "→";
  top: 40px;
  right: -13px;
  display: grid;
  width: 25px;
  height: 25px;
  place-items: center;
  color: var(--orange);
  background: #fff;
  font-size: 0.9rem;
}

.process-number {
  margin-bottom: 48px;
  color: var(--orange);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.process-list h3 {
  margin-bottom: 16px;
  font-size: 1.1rem;
}

.process-list li > p:last-child {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.84rem;
}

.section--company {
  background: var(--mist);
}

.company-grid {
  display: grid;
  grid-template-columns: 0.66fr 1.34fr;
  gap: clamp(60px, 10vw, 140px);
}

.company-data {
  margin: 0;
  border-top: 1px solid #cad3ce;
}

.company-data > div {
  display: grid;
  grid-template-columns: 160px 1fr;
  padding: 27px 0;
  border-bottom: 1px solid #cad3ce;
}

.company-data dt {
  font-size: 0.88rem;
  font-weight: 700;
}

.company-data dd {
  margin: 0;
}

.contact {
  position: relative;
  padding: 130px 0;
  overflow: hidden;
  color: #fff;
  background: var(--green-dark);
}

.contact::before {
  position: absolute;
  content: "";
  inset: 0;
  opacity: 0.08;
  background:
    linear-gradient(30deg, transparent 48%, #fff 49%, #fff 51%, transparent 52%),
    linear-gradient(150deg, transparent 48%, #fff 49%, #fff 51%, transparent 52%);
  background-size: 100px 58px;
}

.contact-inner {
  position: relative;
  z-index: 2;
  text-align: center;
}

.contact .section-en {
  color: #cbded1;
}

.contact h2 {
  margin-bottom: 26px;
  font-size: clamp(2rem, 4.2vw, 3.75rem);
}

.contact-inner > p:not(.section-en, .contact-note) {
  margin-bottom: 38px;
  color: #d2e0d7;
}

.button--light {
  min-width: 310px;
  color: var(--ink);
  background: #fff;
}

.button--light:hover,
.button--light:focus-visible {
  color: #fff;
  background: transparent;
  border-color: #fff;
}

.contact-note {
  margin: 12px 0 0;
  color: #adc8b7;
  font-size: 0.72rem;
}

.contact-decoration span {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.contact-decoration span:nth-child(1) {
  width: 420px;
  height: 420px;
  top: -210px;
  left: -130px;
}

.contact-decoration span:nth-child(2) {
  width: 290px;
  height: 290px;
  right: -60px;
  bottom: -120px;
}

.contact-decoration span:nth-child(3) {
  width: 16px;
  height: 16px;
  top: 22%;
  right: 17%;
  background: var(--yellow);
  border: 0;
}

.site-footer {
  padding: 72px 0 24px;
  background: #fff;
}

.footer-main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  padding-bottom: 60px;
}

.footer-brand img {
  width: min(330px, 100%);
  margin-bottom: 24px;
}

.footer-brand p {
  color: var(--ink-soft);
  font-size: 0.86rem;
}

.footer-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}

.footer-links ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links li {
  margin-bottom: 14px;
}

.footer-links a {
  font-size: 0.86rem;
  font-weight: 700;
  text-decoration: none;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--orange);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.footer-bottom small {
  color: var(--ink-soft);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
}

.page-top {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.67rem;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: 0.12em;
}

.page-top span {
  display: inline-grid;
  width: 30px;
  height: 30px;
  place-items: center;
  margin-left: 8px;
  color: #fff;
  background: var(--ink);
  border-radius: 50%;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

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

@media (max-width: 1100px) {
  .global-nav ul {
    gap: 19px;
  }

  .global-nav li a {
    font-size: 0.78rem;
  }

  .header-contact {
    padding-inline: 18px;
  }

  .process-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .process-list li {
    border-bottom: 1px solid var(--line);
  }

  .process-list li:nth-child(3) {
    border-right: 0;
  }

  .process-list li:nth-child(3)::after {
    display: none;
  }

  .process-list li:nth-child(n + 4) {
    border-bottom: 0;
  }
}

@media (max-width: 960px) {
  :root {
    --header-height: 72px;
  }

  .header-inner {
    width: min(calc(100% - 36px), 1380px);
  }

  .brand {
    flex-basis: 240px;
  }

  .menu-button {
    position: relative;
    z-index: 102;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
    color: var(--ink);
    cursor: pointer;
  }

  .menu-button__label {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 0.63rem;
    font-weight: 800;
    letter-spacing: 0.12em;
  }

  .menu-button__lines {
    display: flex;
    width: 28px;
    height: 20px;
    flex-direction: column;
    justify-content: space-between;
  }

  .menu-button__lines span {
    width: 100%;
    height: 2px;
    background: currentColor;
    transition: transform 0.25s ease, opacity 0.2s ease;
  }

  .menu-button[aria-expanded="true"] .menu-button__lines span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }

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

  .menu-button[aria-expanded="true"] .menu-button__lines span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }

  .global-nav {
    position: fixed;
    z-index: 101;
    inset: 0;
    display: flex;
    visibility: hidden;
    padding: 110px 32px 50px;
    flex-direction: column;
    align-items: stretch;
    gap: 30px;
    overflow-y: auto;
    opacity: 0;
    background: #fff;
    transform: translateY(-12px);
    transition: visibility 0.25s, opacity 0.25s ease, transform 0.25s ease;
  }

  .global-nav.is-open {
    visibility: visible;
    opacity: 1;
    transform: none;
  }

  .global-nav ul {
    display: block;
  }

  .global-nav li {
    border-bottom: 1px solid var(--line);
  }

  .global-nav li a {
    padding: 18px 2px;
    font-size: 1rem;
  }

  .global-nav li a::after {
    display: none;
  }

  .header-contact {
    width: 100%;
    min-height: 60px;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--header-height) + 90px);
  }

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

  .hero-copy {
    position: relative;
    z-index: 2;
  }

  .hero-visual {
    position: absolute;
    z-index: 0;
    width: 430px;
    right: -190px;
    bottom: -80px;
    opacity: 0.42;
  }

  .hero-bottom {
    display: none;
  }

  .about-grid,
  .fields-grid,
  .company-grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }

  .about-copy {
    padding-top: 0;
  }

  .technology-visuals {
    grid-template-columns: 1fr 1fr;
  }

  .technology-visual--wide {
    grid-column: 1 / -1;
    grid-row: auto;
    min-height: 470px;
  }

  .oss-capability {
    grid-template-columns: 1fr;
  }

  .strength-card {
    padding-inline: 28px;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(calc(100% - 36px), var(--max-width));
  }

  .section {
    padding: 88px 0;
  }

  .hero {
    padding: calc(var(--header-height) + 66px) 0 82px;
    background-size: 44px 44px, 44px 44px, auto;
  }

  .hero-inner {
    width: min(calc(100% - 36px), var(--max-width));
  }

  .hero h1 {
    font-size: clamp(2.42rem, 11vw, 3.5rem);
  }

  .hero h1 span::after {
    bottom: 4px;
    height: 9px;
  }

  .hero-lead br {
    display: none;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
  }

  .button {
    width: 100%;
  }

  .hero-visual {
    width: 380px;
    right: -210px;
  }

  .section-heading--horizontal {
    display: block;
    margin-bottom: 44px;
  }

  .section-heading--horizontal > div:first-child {
    margin-bottom: 14px;
  }

  .service-grid,
  .strength-grid {
    grid-template-columns: 1fr;
  }

  .technology-visuals {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 60px;
  }

  .technology-visual,
  .technology-visual--wide {
    grid-column: auto;
    min-height: 360px;
  }

  .technology-visual figcaption {
    padding: 28px 24px 24px;
  }

  .service-card {
    min-height: 0;
    padding: 38px 28px;
  }

  .oss-capability {
    margin-top: 46px;
    padding: 38px 28px;
  }

  .field-item {
    grid-template-columns: 40px 1fr;
    align-items: start;
    gap: 15px;
  }

  .field-item > span {
    display: none;
  }

  .strength-grid {
    gap: 1px;
  }

  .strength-card {
    min-height: 0;
    padding: 38px 28px;
  }

  .strength-number {
    margin-bottom: 30px;
  }

  .process-list {
    grid-template-columns: 1fr;
    border-bottom: 0;
  }

  .process-list li {
    min-height: 0;
    padding: 30px 22px;
    border-right: 0;
    border-bottom: 1px solid var(--line) !important;
  }

  .process-list li:not(:last-child)::after {
    display: none;
  }

  .process-number {
    margin-bottom: 20px;
  }

  .company-data > div {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .company-data dt {
    color: var(--green-dark);
  }

  .contact {
    padding: 90px 0;
  }

  .contact-inner > p br {
    display: none;
  }

  .button--light {
    min-width: 0;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 480px) {
  .brand {
    min-width: 0;
    flex-basis: 210px;
  }

  .menu-button__label {
    display: none;
  }

  .hero h1 {
    font-size: clamp(1.75rem, 8.7vw, 2.05rem);
  }

  .about-principle {
    justify-content: space-between;
  }

  .about-principle i {
    margin-inline: 7px;
  }

  .technology-visual,
  .technology-visual--wide {
    min-height: 320px;
  }

  .oss-capability__products ul {
    grid-template-columns: 1fr;
  }

  .oss-capability__products li:nth-child(odd) {
    border-right: 0;
  }

  .oss-capability__products li:nth-child(even) {
    padding-left: 0;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column-reverse;
    gap: 24px;
  }
}

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

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