:root {
  --bg: #f6f8f7;
  --surface: #ffffff;
  --surface-alt: #eef5f2;
  --text: #123126;
  --muted: #5f7168;
  --line: #d9e4de;
  --accent: #0f8a63;
  --accent-dark: #0b694b;
  --accent-soft: #d9f0e8;
  --shadow: 0 18px 50px rgba(18, 49, 38, 0.08);
  --radius: 22px;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(15, 138, 99, 0.08), transparent 28%),
    radial-gradient(circle at bottom right, rgba(15, 138, 99, 0.06), transparent 24%),
    var(--bg);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", "Meiryo", sans-serif;
  line-height: 1.8;
  letter-spacing: 0.02em;
}

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

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

button,
input {
  font: inherit;
}

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

body {
  padding-top: 54px;
}

body.is-loading {
  overflow: hidden;
}

.loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  background:
    radial-gradient(circle at 50% 35%, rgba(18, 144, 103, 0.18), transparent 45%),
    linear-gradient(180deg, #071013 0%, #0a1216 52%, #0d1419 100%);
  opacity: 1;
  visibility: visible;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader--hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader__track {
  position: relative;
  width: min(70vw, 320px);
  height: 56px;
  overflow: hidden;
}

.loader__road {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 6px;
  height: 4px;
  border-radius: 999px;
  background-image: repeating-linear-gradient(
    90deg,
    var(--accent) 0 24px,
    transparent 24px 48px
  );
  background-size: 96px 4px;
  animation: loaderRoad 0.6s linear infinite;
}

.loader__car {
  position: absolute;
  bottom: 8px;
  left: -25%;
  width: 64px;
  color: var(--accent);
  animation: loaderCar 1.3s linear infinite;
}

.loader__car svg {
  display: block;
  width: 100%;
  height: auto;
  filter: drop-shadow(0 6px 10px rgba(16, 227, 155, 0.35));
}

.loader__brand {
  margin: 0;
  color: #f6fbf8;
  font-size: 1.05rem;
  font-weight: 900;
  letter-spacing: 0.32em;
}

@keyframes loaderRoad {
  from {
    background-position-x: 0;
  }
  to {
    background-position-x: -96px;
  }
}

@keyframes loaderCar {
  from {
    left: -25%;
  }
  to {
    left: 110%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .loader__road,
  .loader__car {
    animation: none;
  }

  .loader__car {
    left: 50%;
    transform: translateX(-50%);
  }
}

.skip-link {
  position: absolute;
  left: 16px;
  top: 12px;
  z-index: 1000;
  padding: 10px 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  transform: translateY(-180%);
  transition: transform 0.2s ease;
}

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

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 120;
  backdrop-filter: blur(18px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(217, 228, 222, 0.9);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  min-height: 54px;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  height: 34px;
  overflow: hidden;
  color: var(--text);
}

.site-logo img {
  display: block;
  width: auto;
  height: 42px;
  max-width: min(240px, 38vw);
  object-fit: cover;
  object-position: center;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
}

.site-nav a {
  position: relative;
  padding: 8px 0;
  color: #1b2a24;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.2s ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.site-brand {
  display: none;
  font-size: 1rem;
  font-weight: 900;
  letter-spacing: 0.18em;
  color: var(--text);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  flex-shrink: 0;
}

.nav-toggle__bar {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 999px;
  background: var(--text);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle.is-active .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-active .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-active .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 130;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  border-radius: 999px;
  color: #ffffff;
  background:
    linear-gradient(135deg, rgba(18, 197, 141, 0.98), rgba(8, 94, 66, 0.98));
  box-shadow:
    0 14px 28px rgba(9, 78, 56, 0.28),
    0 0 0 1px rgba(255, 255, 255, 0.18),
    0 0 28px rgba(28, 227, 163, 0.22);
  backdrop-filter: blur(10px);
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.back-to-top:hover,
.back-to-top:focus-visible {
  transform: translateY(-2px) scale(1.02);
  filter: brightness(1.06);
  box-shadow:
    0 18px 34px rgba(9, 78, 56, 0.32),
    0 0 0 1px rgba(255, 255, 255, 0.22),
    0 0 36px rgba(28, 227, 163, 0.3);
}

.back-to-top__icon {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  font-size: 0.95rem;
  font-weight: 900;
  line-height: 1;
}

.back-to-top__text {
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.18em;
}

.back-to-top::before {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  border: 1px solid rgba(37, 255, 193, 0.22);
  opacity: 0.6;
  animation: backToTopPulse 1.9s ease-in-out infinite;
  pointer-events: none;
}

@keyframes backToTopPulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.45;
  }
  50% {
    transform: scale(1.04);
    opacity: 0.8;
  }
}

.container {
  width: min(100% - 32px, var(--container));
  margin: 0 auto;
}

.section {
  padding: 84px 0;
}

.section--alt {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.55), rgba(233, 242, 238, 0.92));
}

.philosophy {
  padding-top: 76px;
  padding-bottom: 76px;
}

.philosophy__header {
  display: grid;
  justify-items: center;
  gap: 12px;
  margin-bottom: 36px;
  text-align: center;
}

.section-kicker {
  margin: 0;
  color: var(--accent);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.22em;
}

.philosophy__header h2 {
  margin: 0;
  font-size: clamp(1.7rem, 2.6vw, 2.4rem);
  font-weight: 900;
  letter-spacing: 0.05em;
}

.section-rule {
  width: 52px;
  height: 4px;
  border-radius: 999px;
  background: var(--accent);
}

.hero__inner {
  display: grid;
  justify-items: center;
  gap: 8px;
  padding: 20px 0 10px;
}

.site-footer__brand {
  margin: 0;
  color: #ffffff;
  font-size: 0.96rem;
  font-weight: 900;
  letter-spacing: 0.2em;
}

.site-footer__copy {
  margin: 0;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
}

.hero__inner--stacked {
  max-width: 560px;
}

.hero__media--stacked {
  width: min(100%, 360px);
  padding: 0;
  box-shadow: none;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.hero__media--stacked img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.hero__content--stacked {
  text-align: center;
}

.hero__brand {
  font-size: clamp(2rem, 3.4vw, 2.6rem);
  line-height: 1;
  letter-spacing: 0.22em;
  font-weight: 900;
  color: var(--text);
}

.hero__submark--brand {
  color: var(--accent);
}

.value-section {
  position: relative;
  overflow: hidden;
  color: #f6fbf8;
  padding: 112px 0 100px;
  background:
    radial-gradient(circle at 18% 18%, rgba(18, 144, 103, 0.22), transparent 34%),
    radial-gradient(circle at 50% 0%, rgba(12, 166, 119, 0.14), transparent 28%),
    radial-gradient(circle at 52% 42%, rgba(7, 48, 39, 0.65), transparent 38%),
    linear-gradient(180deg, #071013 0%, #0a1216 52%, #0d1419 100%);
}

.value-section::before,
.value-section::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(22, 192, 141, 0.5), transparent);
}

.value-section::before {
  top: 12px;
}

.value-section::after {
  bottom: 0;
}

.value-section__inner {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  justify-items: center;
  gap: 24px;
  min-height: 500px;
  text-align: center;
}

.eyebrow--center {
  text-align: center;
}

.value-title {
  margin: 0;
  font-size: clamp(2.25rem, 4.4vw, 4rem);
  line-height: 1.2;
  letter-spacing: 0.02em;
  font-weight: 900;
  text-shadow: 0 3px 0 rgba(0, 0, 0, 0.24);
}

.value-title span {
  color: var(--accent);
}

.value-lead {
  margin: 0;
  color: rgba(244, 250, 247, 0.96);
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  line-height: 2;
}

.hero__actions--center {
  margin-top: 8px;
}

.button--hero {
  min-width: min(100%, 560px);
  min-height: 86px;
  padding: 18px 30px;
  border-radius: 999px;
  font-size: clamp(1rem, 1.5vw, 1.14rem);
  box-shadow:
    0 18px 34px rgba(0, 145, 97, 0.3),
    0 0 0 2px rgba(30, 228, 165, 0.18),
    0 0 36px rgba(16, 227, 155, 0.14);
}

.button--hero:hover {
  box-shadow:
    0 20px 36px rgba(0, 145, 97, 0.34),
    0 0 0 2px rgba(30, 228, 165, 0.22),
    0 0 44px rgba(16, 227, 155, 0.2);
}

.hero__note--center {
  margin-top: 2px;
  color: #1bb98a;
  letter-spacing: 0.08em;
}

h1 {
  font-weight: 900;
}

h2 {
  margin: 0 0 18px;
  font-size: clamp(1.6rem, 2.2vw, 2.3rem);
  line-height: 1.25;
}

.section-lead {
  margin: 0 0 20px;
  font-size: 1.1rem;
  color: var(--accent-dark);
  font-weight: 700;
}

.content-card,
.step-card,
.contact-form,
.company-table,
.map-wrap {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.content-card {
  padding: 28px;
}

.philosophy-card {
  position: relative;
  z-index: 1;
  width: min(100%, 800px);
  margin: 0 auto;
  padding: 82px 72px 58px;
  border-top: 6px solid var(--accent);
  border-radius: 18px 18px 22px 22px;
}

.philosophy-card__lead {
  margin-top: 0;
  margin-bottom: 34px;
  text-align: center;
  font-size: clamp(1.15rem, 1.8vw, 1.45rem);
  font-weight: 900;
  color: #20252c;
}

.philosophy-banner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 460px;
  margin-bottom: 56px;
  border-radius: var(--radius);
  overflow: hidden;
  background: #f4f8f6;
}

.philosophy-banner__media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.philosophy-banner__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  padding: 160px 24px 40px;
  text-align: center;
}

.philosophy-banner__title {
  margin: 0;
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  font-weight: 900;
  line-height: 1.45;
  color: #121826;
}

.philosophy-banner__lead {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.9;
}

.philosophy-content {
  position: relative;
  padding: 64px 0;
}

.philosophy-content__bg {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 100vw;
  transform: translateX(-50%);
  overflow: hidden;
}

.philosophy-content__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.flow {
  padding-top: 82px;
  padding-bottom: 82px;
  background: #fff;
}

.flow__header {
  display: grid;
  justify-items: center;
  gap: 12px;
  margin-bottom: 36px;
  text-align: center;
}

.flow__header h2 {
  margin: 0;
  font-size: clamp(1.7rem, 2.6vw, 2.4rem);
  font-weight: 900;
  letter-spacing: 0.03em;
}

.content-card p:first-child {
  margin-top: 0;
}

.content-card p:last-child {
  margin-bottom: 0;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.step-card {
  display: flex;
  flex-direction: column;
  padding: 32px 28px 34px;
}

.flow-card {
  border-top: 4px solid #1d2420;
  border-radius: 12px 12px 14px 14px;
  box-shadow: 0 6px 20px rgba(18, 49, 38, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.flow-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(18, 49, 38, 0.1);
}

.step-card__label {
  margin: 0 0 8px;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  color: var(--accent);
}

.step-card h3 {
  margin: 0 0 22px;
  text-align: center;
  font-size: 1.3rem;
  line-height: 1.4;
  font-weight: 900;
  color: #121826;
}

.step-card__illustration {
  width: 168px;
  height: 168px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: var(--accent-soft);
  overflow: hidden;
}

.step-card__illustration img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.step-numbers {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 28px 0 56px;
}

.step-numbers::before {
  content: "";
  position: absolute;
  top: 50%;
  left: calc(100% / 6);
  right: calc(100% / 6);
  border-top: 2px dashed var(--line);
  transform: translateY(-50%);
}

.step-number {
  position: relative;
  justify-self: center;
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 1.1rem;
  font-weight: 900;
}

.flow-cta {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 28px 36px;
  background: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: 24px;
}

.flow-cta__illustration {
  flex: 0 0 140px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: var(--accent-soft);
  overflow: hidden;
}

.flow-cta__illustration img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.flow-cta__text {
  flex: 1;
  margin: 0;
  font-size: 1.08rem;
  font-weight: 800;
  color: #1a1f1d;
}

.flow-cta__button {
  flex-shrink: 0;
  border-radius: 999px;
  padding: 16px 32px;
}

.flow-cta__arrow {
  font-size: 1.2rem;
  font-weight: 900;
}

.contact {
  padding-top: 84px;
  padding-bottom: 84px;
}

.contact__header {
  display: grid;
  justify-items: center;
  gap: 12px;
  margin-bottom: 34px;
  text-align: center;
}

.contact__header h2 {
  margin: 0;
  font-size: clamp(1.7rem, 2.6vw, 2.4rem);
  font-weight: 900;
  letter-spacing: 0.03em;
}

.step-card h3 {
  margin: 0 0 14px;
  font-size: 1.38rem;
  line-height: 1.4;
  font-weight: 900;
  color: #121826;
}

.step-card p {
  margin: 0;
  color: #56656f;
}

.contact-grid {
  display: grid;
  gap: 20px;
}

.contact-form {
  width: min(100%, 920px);
  margin: 0 auto;
  padding: 42px 58px 34px;
  border-radius: 20px;
}

.form-row {
  display: grid;
  gap: 10px;
  margin-bottom: 24px;
}

label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: #10161b;
}

.form-label__text {
  font-size: 0.95rem;
}

.required {
  display: inline-block;
  margin-left: 0;
  padding: 2px 7px;
  border-radius: 4px;
  background: #f03d66;
  color: #fff;
  font-size: 0.72rem;
  line-height: 1.2;
  vertical-align: middle;
}

input {
  width: 100%;
  min-height: 46px;
  padding: 12px 16px;
  border: 2px solid #d0dbe9;
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input::placeholder {
  color: #8290a0;
}

input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(15, 138, 99, 0.1);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 54px;
  padding: 14px 20px;
  border: 0;
  border-radius: 16px;
  cursor: pointer;
  font-weight: 800;
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.button--primary {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  box-shadow: 0 16px 30px rgba(15, 138, 99, 0.22);
}

.button--full {
  width: 100%;
}

.contact .button--full {
  min-height: 62px;
  margin-top: 4px;
  border-radius: 6px;
  font-size: 1.02rem;
  box-shadow: 0 10px 22px rgba(15, 138, 99, 0.22);
}

.company {
  padding-top: 86px;
  padding-bottom: 86px;
}

.company__header {
  display: grid;
  justify-items: center;
  gap: 12px;
  margin-bottom: 34px;
  text-align: center;
}

.company__header h2 {
  margin: 0;
  font-size: clamp(1.7rem, 2.6vw, 2.4rem);
  font-weight: 900;
  letter-spacing: 0.03em;
}

.company-layout {
  display: grid;
  gap: 0;
  align-items: stretch;
}

.company-table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 18px 18px 0 0;
}

.company-table th,
.company-table td {
  padding: 26px 24px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  text-align: left;
}

.company-table th {
  width: 210px;
  background: #fff;
  color: var(--accent);
  font-weight: 900;
}

.company-table tr:last-child th,
.company-table tr:last-child td {
  border-bottom: 0;
}

.map-wrap {
  min-height: 360px;
  overflow: hidden;
  border-top: 0;
  border-radius: 0 0 18px 18px;
}

.map-wrap iframe {
  width: 100%;
  height: 100%;
  min-height: 360px;
  border: 0;
}

.site-footer {
  padding: 24px 0 34px;
  color: #d8e4df;
  text-align: center;
  background: linear-gradient(180deg, #0b1115 0%, #060b0e 100%);
  border-top: 4px solid var(--accent);
}

.site-footer__inner {
  display: grid;
  justify-items: center;
  gap: 8px;
  padding: 20px 0 10px;
}

.site-footer__brand {
  margin: 0;
  color: #ffffff;
  font-size: 0.96rem;
  font-weight: 900;
  letter-spacing: 0.2em;
}

.site-footer__copy {
  margin: 0;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
}

@media (max-width: 960px) {
  .company-layout {
    grid-template-columns: 1fr;
  }

  .philosophy-banner {
    min-height: 360px;
  }

  .philosophy-banner__content {
    padding-top: 120px;
  }

  .philosophy-content {
    padding: 48px 0;
  }

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

  .step-numbers {
    display: none;
  }

  .flow-cta {
    margin-top: 28px;
  }

  .flow-cta {
    flex-direction: column;
    text-align: center;
    padding: 32px 24px;
  }

  .flow-cta__button {
    width: 100%;
  }

  .hero__inner--stacked {
    max-width: 100%;
  }

  .site-header__inner {
    min-height: 50px;
    gap: 14px;
  }

  body {
    padding-top: 50px;
  }

  .value-section__inner {
    min-height: 460px;
  }

  .philosophy-card {
    padding: 64px 40px 44px;
  }

  .flow {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .contact {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .company {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .contact-form {
    padding: 34px 34px 26px;
  }

  .company__header {
    margin-bottom: 28px;
  }

  .company-table th,
  .company-table td {
    padding: 22px 20px;
  }

  .company-table th {
    width: 180px;
  }

  .map-wrap,
  .map-wrap iframe {
    min-height: 320px;
  }
}

@media (max-width: 640px) {
  .u-mobile-break {
    display: inline;
  }

  .section {
    padding: 64px 0;
  }

  body {
    padding-top: 50px;
  }

  .hero {
    padding-top: 20px;
    padding-bottom: 18px;
  }

  .hero__media--stacked {
    width: min(100%, 300px);
  }

  .hero__brand {
    font-size: 2rem;
    letter-spacing: 0.18em;
  }

  .hero__submark--brand {
    font-size: 0.78rem;
    letter-spacing: 0.42em;
  }

  .site-header__inner {
    position: relative;
    min-height: 48px;
    justify-content: space-between;
    gap: 0;
    padding: 0;
  }

  .site-brand {
    display: inline-flex;
    align-items: center;
    font-size: 0.95rem;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--line);
    transition: max-height 0.25s ease;
  }

  .site-nav.is-open {
    max-height: 320px;
  }

  .site-nav a {
    width: 100%;
    padding: 14px 0;
    border-top: 1px solid var(--line);
    text-align: center;
    font-size: 0.92rem;
  }

  .site-logo img {
    height: 28px;
    max-width: min(180px, 52vw);
  }

  .back-to-top {
    right: 14px;
    bottom: 14px;
    padding: 12px 14px;
  }

  .back-to-top__text {
    font-size: 0.75rem;
  }

  .back-to-top__icon {
    width: 24px;
    height: 24px;
  }

  .value-section {
    padding: 92px 0 84px;
  }

  .value-section__inner {
    min-height: auto;
    gap: 18px;
  }

  .value-title {
    font-size: 2rem;
  }

  .value-lead {
    font-size: 0.9rem;
  }

  .button--hero {
    min-width: 100%;
    min-height: 72px;
    padding: 16px 22px;
  }

  .philosophy {
    padding-top: 56px;
    padding-bottom: 56px;
  }

  .philosophy__header {
    gap: 8px;
    margin-bottom: 28px;
  }

  .philosophy-card {
    padding: 38px 20px 28px;
    border-top-width: 5px;
  }

  .philosophy-card__lead {
    margin-bottom: 24px;
    font-size: 1.02rem;
  }

  .flow__header {
    gap: 8px;
    margin-bottom: 28px;
  }

  .flow__header h2 {
    font-size: 1.9rem;
  }

  .flow-cta__illustration {
    flex: 0 0 110px;
    width: 110px;
    height: 110px;
  }

  .contact__header {
    gap: 8px;
    margin-bottom: 26px;
  }

  .contact__header h2 {
    font-size: 1.9rem;
  }

  .step-card {
    padding: 24px 20px 26px;
  }

  .step-card h3 {
    font-size: 1.18rem;
  }

  .step-card__illustration {
    width: 132px;
    height: 132px;
  }

  .contact-form {
    padding: 24px 18px 18px;
    border-radius: 18px;
  }

  .form-row {
    gap: 8px;
    margin-bottom: 20px;
  }

  label {
    gap: 8px;
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .required {
    margin-top: 1px;
  }

  input {
    min-height: 44px;
    padding: 10px 14px;
  }

  .contact .button--full {
    min-height: 58px;
    font-size: 0.98rem;
  }

  .company__header {
    gap: 8px;
    margin-bottom: 26px;
  }

  .company__header h2 {
    font-size: 1.9rem;
  }

  .company-table,
  .map-wrap {
    border-radius: 16px;
  }

  .company-table th,
  .company-table td {
    display: block;
    width: 100%;
    padding: 18px 18px 12px;
  }

  .company-table th {
    padding-bottom: 6px;
  }

  .company-table td {
    padding-top: 0;
    padding-bottom: 18px;
  }

  .map-wrap,
  .map-wrap iframe {
    min-height: 280px;
  }

  .hero__note--center {
    font-size: 0.88rem;
  }

  .content-card,
  .step-card,
  .contact-form {
    padding: 20px;
  }

  .company-table th,
  .company-table td {
    padding: 14px 16px;
    display: block;
    width: 100%;
  }

  .company-table th {
    border-bottom: 0;
    padding-bottom: 4px;
  }

  .company-table td {
    padding-top: 0;
  }

  .button--primary {
    width: 100%;
  }

  .site-footer__brand {
    font-size: 0.9rem;
  }

  .site-footer__copy {
    font-size: 0.78rem;
  }
}