:root {
  --bg: #f8f9fb;
  --surface: #ffffff;
  --surface-soft: #f0f4f8;
  --ink: #101828;
  --muted: #566276;
  --line: #dbe3ec;
  --red: #e03131;
  --red-deep: #b91c1c;
  --red-soft: rgba(224, 49, 49, 0.12);
  --blue: #2d6cdf;
  --green: #00a690;
  --amber: #c98318;
  --shadow: 0 18px 50px rgba(16, 24, 40, 0.09);
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
}

body.nav-open {
  overflow: hidden;
}

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

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

a:hover {
  color: var(--red);
}

:focus-visible {
  outline: 3px solid rgba(224, 49, 49, 0.32);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  transform: translateY(-140%);
  border-radius: 8px;
  background: var(--ink);
  color: #ffffff;
  padding: 0.65rem 0.9rem;
  transition: transform 180ms ease;
}

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

.container {
  width: min(1120px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 50;
  background: rgba(248, 249, 251, 0.88);
  border-bottom: 1px solid rgba(219, 227, 236, 0.72);
  backdrop-filter: blur(18px);
  transition:
    box-shadow 180ms ease,
    background-color 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 8px 30px rgba(16, 24, 40, 0.08);
}

.nav {
  width: min(1180px, calc(100% - 32px));
  height: var(--header-height);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 8px;
  background:
    linear-gradient(135deg, var(--ink) 0%, #202b3f 58%, var(--red) 100%);
  color: #ffffff;
  font-size: 0.78rem;
  box-shadow: 0 10px 24px rgba(224, 49, 49, 0.22);
}

.brand-text {
  display: grid;
  gap: 0.02rem;
  line-height: 1.12;
}

.brand-sub {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 650;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  min-height: 42px;
  border-radius: 8px;
  padding: 0 0.85rem;
  color: #394354;
  font-size: 0.93rem;
  font-weight: 700;
}

.nav-links a span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 650;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: rgba(224, 49, 49, 0.08);
  color: var(--ink);
}

.nav-links .nav-cta {
  margin-left: 0.25rem;
  background: var(--ink);
  color: #ffffff;
}

.nav-links .nav-cta span {
  color: rgba(255, 255, 255, 0.78);
}

.nav-links .nav-cta:hover,
.nav-links .nav-cta:focus-visible {
  background: var(--red);
  color: #ffffff;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 3px auto;
  border-radius: 2px;
  background: var(--ink);
  transition:
    transform 180ms ease,
    opacity 180ms ease;
}

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

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

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

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 82vh;
  min-height: 82svh;
  padding: 8.6rem 0 4.4rem;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.96) 0%, rgba(248, 249, 251, 0.92) 45%, rgba(238, 244, 248, 0.82) 100%),
    repeating-linear-gradient(90deg, rgba(16, 24, 40, 0.045) 0 1px, transparent 1px 78px),
    repeating-linear-gradient(0deg, rgba(16, 24, 40, 0.035) 0 1px, transparent 1px 78px),
    var(--bg);
}

.hero::before {
  content: "";
  position: absolute;
  inset: -20% -45% -20% auto;
  z-index: 1;
  width: 70%;
  background: linear-gradient(115deg, transparent 8%, rgba(224, 49, 49, 0.13) 46%, transparent 72%);
  transform: translateX(24%);
  animation: scan-sweep 9s ease-in-out infinite;
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  right: -14%;
  bottom: -28%;
  z-index: 0;
  width: 58%;
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    conic-gradient(from 120deg, transparent 0 24%, rgba(224, 49, 49, 0.12) 32%, transparent 42% 62%, rgba(45, 108, 223, 0.1) 72%, transparent 84%),
    radial-gradient(circle, transparent 0 42%, rgba(224, 49, 49, 0.08) 43% 44%, transparent 45% 100%);
  filter: blur(0.2px);
  opacity: 0.65;
  animation: orbital-drift 18s linear infinite;
  pointer-events: none;
}

#network-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  opacity: 0.72;
}

.hero-shade {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(248, 249, 251, 0.98) 0%, rgba(248, 249, 251, 0.86) 54%, rgba(248, 249, 251, 0.42) 100%),
    linear-gradient(180deg, rgba(248, 249, 251, 0.08), rgba(248, 249, 251, 0.94) 96%);
  pointer-events: none;
}

.hero-visual {
  position: absolute;
  top: 17%;
  right: max(30px, calc((100vw - 1120px) / 2));
  z-index: 1;
  width: min(430px, 36vw);
  height: min(430px, 36vw);
  pointer-events: none;
  opacity: 0.85;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(90deg, rgba(16, 24, 40, 0.11) 0 1px, transparent 1px 42px),
    repeating-linear-gradient(0deg, rgba(16, 24, 40, 0.08) 0 1px, transparent 1px 42px);
  -webkit-mask-image: linear-gradient(120deg, transparent 0%, #000 20%, #000 72%, transparent 100%);
  mask-image: linear-gradient(120deg, transparent 0%, #000 20%, #000 72%, transparent 100%);
  animation: grid-drift 14s linear infinite;
}

.hero-visual::after {
  content: "";
  position: absolute;
  inset: 15%;
  border: 1px solid rgba(16, 24, 40, 0.08);
  border-radius: 50%;
  background: radial-gradient(circle, transparent 0 52%, rgba(224, 49, 49, 0.06) 53% 54%, transparent 55%);
  animation: radial-breathe 7.4s ease-in-out infinite;
}

.ripple-ring {
  position: absolute;
  border: 1px solid rgba(224, 49, 49, 0.26);
  border-radius: 50%;
  opacity: 0;
  animation: ripple-expand 6.8s ease-out infinite;
}

.ring-a {
  inset: 14%;
}

.ring-b {
  inset: 25%;
  animation-delay: 1.5s;
  border-color: rgba(45, 108, 223, 0.2);
}

.ring-c {
  inset: 36%;
  animation-delay: 3s;
  border-color: rgba(224, 49, 49, 0.18);
}

.signal-line {
  position: absolute;
  height: 1px;
  transform-origin: left center;
  background: linear-gradient(90deg, transparent, rgba(224, 49, 49, 0.74), transparent);
  animation: signal-flow 4.8s ease-in-out infinite;
}

.signal-wave {
  position: absolute;
  left: 4%;
  width: 92%;
  height: 42px;
  border-top: 1px solid rgba(224, 49, 49, 0.22);
  border-radius: 50%;
  opacity: 0.58;
  transform: rotate(-10deg);
  animation: thread-waver 8.5s ease-in-out infinite;
}

.wave-a {
  top: 32%;
}

.wave-b {
  top: 64%;
  border-color: rgba(45, 108, 223, 0.18);
  transform: rotate(13deg);
  animation-name: thread-waver-alt;
  animation-delay: 1.7s;
}

.line-a {
  top: 22%;
  left: 8%;
  width: 78%;
  transform: rotate(15deg);
}

.line-b {
  top: 54%;
  left: 16%;
  width: 68%;
  transform: rotate(-18deg);
  animation-delay: 0.8s;
}

.line-c {
  top: 73%;
  left: 0;
  width: 84%;
  transform: rotate(8deg);
  animation-delay: 1.5s;
}

.signal-node {
  position: absolute;
  width: 11px;
  height: 11px;
  border: 2px solid rgba(224, 49, 49, 0.72);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 0 0 8px rgba(224, 49, 49, 0.08);
  animation: node-pulse 3.4s ease-in-out infinite;
}

.node-a {
  top: 19%;
  right: 20%;
}

.node-b {
  top: 51%;
  left: 20%;
  animation-delay: 0.9s;
}

.node-c {
  right: 15%;
  bottom: 22%;
  animation-delay: 1.8s;
}

.signal-scan {
  position: absolute;
  top: 8%;
  bottom: 8%;
  left: 49%;
  width: 2px;
  background: linear-gradient(180deg, transparent, rgba(224, 49, 49, 0.6), transparent);
  animation: scan-line 5.5s ease-in-out infinite;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 780px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 0.85rem;
  color: var(--red);
  font-size: 0.85rem;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: 0;
}

.section-kicker span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: none;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: 4.5rem;
  line-height: 0.99;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 660px;
  margin: 1.4rem 0 0;
  color: var(--muted);
  font-size: 1.12rem;
}

.hero-ja,
.ja-copy {
  color: #5f6878;
  font-size: 0.98rem;
  line-height: 1.85;
}

.hero-ja {
  max-width: 680px;
  margin: 1rem 0 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0 1.15rem;
  font-weight: 850;
  line-height: 1;
  cursor: pointer;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.button::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  transform: translateX(-120%) skewX(-18deg);
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.22), transparent);
  opacity: 0;
  transition:
    opacity 180ms ease,
    transform 520ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button:hover::after,
.button:focus-visible::after {
  transform: translateX(120%) skewX(-18deg);
  opacity: 1;
}

.button-primary {
  background: var(--red);
  color: #ffffff;
  box-shadow: 0 12px 28px rgba(224, 49, 49, 0.24);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--red-deep);
  color: #ffffff;
}

.button-secondary {
  background: rgba(255, 255, 255, 0.78);
  border-color: var(--line);
  color: var(--ink);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: rgba(224, 49, 49, 0.38);
  color: var(--ink);
}

.section {
  position: relative;
  overflow: hidden;
  scroll-margin-top: calc(var(--header-height) + 20px);
  padding: 6.5rem 0;
}

.section > .container {
  position: relative;
  z-index: 1;
}

.about-section {
  background: #ffffff;
}

.services-section,
.contact-section {
  background: var(--bg);
}

.about-section::before,
.services-section::before,
.contact-section::before {
  content: "";
  position: absolute;
  inset: auto -12% 12% -12%;
  height: 180px;
  background:
    linear-gradient(90deg, transparent, rgba(224, 49, 49, 0.08), rgba(45, 108, 223, 0.07), transparent),
    repeating-linear-gradient(110deg, transparent 0 38px, rgba(16, 24, 40, 0.045) 39px 40px, transparent 41px 80px);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 18%, #000 82%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 18%, #000 82%, transparent);
  opacity: 0.55;
  transform: translate3d(-5%, 0, 0) skewY(-2deg);
  animation: section-current 16s ease-in-out infinite;
  pointer-events: none;
}

.services-section::before {
  top: 5%;
  bottom: auto;
  opacity: 0.42;
}

.contact-section::before {
  top: 14%;
  bottom: auto;
  animation-delay: 3.4s;
}

.split-layout,
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 1.08fr);
  gap: 4rem;
  align-items: start;
}

.section-copy h2,
.section-heading h2 {
  margin: 0;
  color: var(--ink);
  font-size: 2.58rem;
  line-height: 1.08;
  letter-spacing: 0;
}

.section-copy p,
.section-heading p {
  max-width: 690px;
  margin: 1.1rem 0 0;
  color: var(--muted);
}

.section-heading {
  max-width: 790px;
  margin-bottom: 2.4rem;
}

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

.company-facts dl {
  margin: 0;
}

.company-facts div {
  display: grid;
  grid-template-columns: 155px minmax(0, 1fr);
  gap: 1.25rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
}

.company-facts dt {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 850;
}

.company-facts dd {
  min-width: 0;
  margin: 0;
  color: var(--ink);
  font-weight: 680;
  overflow-wrap: anywhere;
}

.company-facts a {
  color: var(--red);
  overflow-wrap: anywhere;
}

.fact-ja {
  display: block;
  margin-top: 0.3rem;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 600;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.service-card,
.contact-form {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 12px 34px rgba(16, 24, 40, 0.05);
}

.service-card {
  position: relative;
  overflow: hidden;
  min-height: 318px;
  padding: 1.35rem;
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.98), rgba(255, 255, 255, 0.94)),
    radial-gradient(circle at 82% 16%, rgba(224, 49, 49, 0.08), transparent 30%);
  transition:
    transform 220ms ease,
    border-color 220ms ease,
    box-shadow 220ms ease;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 4px;
  background: var(--red);
}

.service-card::after {
  content: "";
  position: absolute;
  top: 4px;
  left: -35%;
  width: 32%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(224, 49, 49, 0.8), transparent);
  animation: card-scan 5.8s ease-in-out infinite;
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: rgba(224, 49, 49, 0.26);
  box-shadow: 0 18px 46px rgba(16, 24, 40, 0.09);
}

.service-card.accent-blue::before {
  background: var(--blue);
}

.service-card.accent-green::before {
  background: var(--green);
}

.service-card.accent-amber::before {
  background: var(--amber);
}

.card-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 30px;
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
}

.service-card h3 {
  margin: 1.25rem 0 0;
  color: var(--ink);
  font-size: 1.08rem;
  line-height: 1.25;
  letter-spacing: 0;
}

.service-card p {
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.service-card .ja-copy {
  color: #677287;
  font-size: 0.86rem;
}

.contact-layout {
  grid-template-columns: minmax(0, 0.86fr) minmax(320px, 0.94fr);
}

.contact-note {
  border-left: 3px solid var(--red);
  padding-left: 1rem;
}

.contact-form {
  padding: 1.35rem;
}

.form-row {
  display: grid;
  gap: 0.45rem;
  margin-bottom: 1rem;
}

.form-row label {
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 850;
}

.form-row input,
.form-row textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  font: inherit;
  padding: 0.82rem 0.9rem;
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.form-row textarea {
  min-height: 150px;
  resize: vertical;
}

.form-row input:focus,
.form-row textarea:focus {
  border-color: rgba(224, 49, 49, 0.7);
  box-shadow: 0 0 0 4px rgba(224, 49, 49, 0.11);
  outline: none;
}

.form-button {
  width: 100%;
}

.form-status {
  min-height: 1.4em;
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.76);
  padding: 2.6rem 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 2rem;
  align-items: start;
}

.footer-brand {
  display: grid;
  gap: 0.05rem;
  color: #ffffff;
}

.footer-brand span[lang="ja"] {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.86rem;
  font-weight: 650;
}

.footer-address,
.copyright {
  margin: 0.55rem 0 0;
}

.footer-address {
  max-width: 36rem;
}

.site-footer a {
  color: #ffffff;
}

.site-footer a:hover {
  color: #ffb4b4;
}

.copyright {
  justify-self: end;
  text-align: right;
}

.js-enabled .reveal {
  transform: translateY(18px);
  opacity: 0;
  transition:
    opacity 520ms ease,
    transform 520ms ease;
}

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

@keyframes scan-sweep {
  0%,
  100% {
    transform: translateX(24%);
    opacity: 0.28;
  }

  45% {
    transform: translateX(-12%);
    opacity: 0.8;
  }
}

@keyframes orbital-drift {
  from {
    transform: rotate(0deg) scale(1);
  }

  50% {
    transform: rotate(180deg) scale(1.04);
  }

  to {
    transform: rotate(360deg) scale(1);
  }
}

@keyframes grid-drift {
  from {
    transform: translate3d(0, 0, 0);
  }

  to {
    transform: translate3d(42px, 42px, 0);
  }
}

@keyframes radial-breathe {
  0%,
  100% {
    transform: scale(0.96);
    opacity: 0.42;
  }

  50% {
    transform: scale(1.04);
    opacity: 0.72;
  }
}

@keyframes ripple-expand {
  0% {
    transform: scale(0.82);
    opacity: 0;
  }

  18% {
    opacity: 0.55;
  }

  70%,
  100% {
    transform: scale(1.34);
    opacity: 0;
  }
}

@keyframes signal-flow {
  0%,
  100% {
    opacity: 0.2;
    clip-path: inset(0 78% 0 0);
  }

  50% {
    opacity: 0.78;
    clip-path: inset(0 0 0 0);
  }
}

@keyframes thread-waver {
  0%,
  100% {
    transform: translate3d(-10px, 0, 0) rotate(-10deg) scaleX(0.96);
    opacity: 0.24;
  }

  45% {
    transform: translate3d(12px, 8px, 0) rotate(-7deg) scaleX(1.04);
    opacity: 0.62;
  }
}

@keyframes thread-waver-alt {
  0%,
  100% {
    transform: translate3d(10px, 0, 0) rotate(13deg) scaleX(0.98);
    opacity: 0.2;
  }

  48% {
    transform: translate3d(-12px, -7px, 0) rotate(9deg) scaleX(1.05);
    opacity: 0.56;
  }
}

@keyframes node-pulse {
  0%,
  100% {
    transform: scale(0.92);
    box-shadow: 0 0 0 6px rgba(224, 49, 49, 0.06);
  }

  50% {
    transform: scale(1.12);
    box-shadow: 0 0 0 14px rgba(224, 49, 49, 0.1);
  }
}

@keyframes scan-line {
  0%,
  100% {
    transform: translateX(-80px);
    opacity: 0;
  }

  45%,
  60% {
    opacity: 0.85;
  }

  50% {
    transform: translateX(86px);
  }
}

@keyframes card-scan {
  0%,
  100% {
    transform: translateX(0);
    opacity: 0;
  }

  35%,
  70% {
    opacity: 0.7;
  }

  65% {
    transform: translateX(420%);
  }
}

@keyframes section-current {
  0%,
  100% {
    transform: translate3d(-5%, 0, 0) skewY(-2deg);
    opacity: 0.36;
  }

  50% {
    transform: translate3d(5%, -12px, 0) skewY(-2deg);
    opacity: 0.62;
  }
}

@media (max-width: 980px) {
  .hero {
    min-height: 78vh;
    min-height: 78svh;
    padding-top: 7.2rem;
  }

  .hero h1 {
    font-size: 3.25rem;
  }

  .hero-visual {
    right: -90px;
    width: 360px;
    height: 360px;
    opacity: 0.45;
  }

  .split-layout,
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 2.4rem;
  }

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

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

  .copyright {
    justify-self: start;
    text-align: left;
  }
}

@media (max-width: 760px) {
  :root {
    --header-height: 66px;
  }

  .container,
  .nav {
    width: min(100% - 28px, 1120px);
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: var(--header-height);
    right: 14px;
    left: 14px;
    display: grid;
    gap: 0.35rem;
    transform: translateY(-12px);
    visibility: hidden;
    opacity: 0;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #ffffff;
    padding: 0.65rem;
    box-shadow: var(--shadow);
    transition:
      opacity 180ms ease,
      transform 180ms ease,
      visibility 180ms ease;
  }

  .nav-links.is-open {
    transform: translateY(0);
    visibility: visible;
    opacity: 1;
  }

  .nav-links a {
    width: 100%;
    justify-content: space-between;
    padding: 0 0.9rem;
  }

  .nav-links .nav-cta {
    margin-left: 0;
  }

  .hero {
    min-height: auto;
    padding: 5.85rem 0 3rem;
  }

  .hero::before {
    width: 120%;
    opacity: 0.55;
  }

  .hero-shade {
    background:
      linear-gradient(90deg, rgba(248, 249, 251, 0.98) 0%, rgba(248, 249, 251, 0.84) 100%),
      linear-gradient(180deg, rgba(248, 249, 251, 0.12), rgba(248, 249, 251, 0.94) 96%);
  }

  .hero-visual {
    top: 10%;
    right: -160px;
    width: 330px;
    height: 330px;
    opacity: 0.28;
  }

  .hero h1 {
    font-size: 2.42rem;
    line-height: 1.03;
  }

  .hero-copy {
    margin-top: 1.15rem;
    font-size: 0.98rem;
  }

  .hero-ja {
    margin-top: 0.85rem;
    font-size: 0.92rem;
    line-height: 1.78;
  }

  .hero-actions {
    gap: 0.65rem;
    margin-top: 1.55rem;
  }

  .section {
    padding: 4rem 0;
  }

  .section-copy h2,
  .section-heading h2 {
    font-size: 2.05rem;
  }

  .company-facts div {
    grid-template-columns: 1fr;
    gap: 0.3rem;
    padding: 1rem 0;
  }

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

  .service-card {
    min-height: auto;
  }
}

@media (max-width: 430px) {
  .brand-text {
    max-width: 190px;
  }

  .hero h1 {
    font-size: 2.08rem;
  }

  .hero-actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

}

@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;
  }
}