:root {
  --color-main: #25446d;
  --color-main-deep: #162d4b;
  --color-accent: #d69f57;
  --color-yellow: #ffd900;
  --color-grad-end: #4884d3;
  --color-gray-bg: #f1f1f1;
  --color-outline-muted: #d8e0eb;
  --color-outline-gray: #d8d8d8;
  --color-outline-soft: #d6e5f8;
  --color-outline-mission: #bebebe;
  --color-outline-contact: #949494;
  --font-display: "Oswald", sans-serif;
  --font-jp: "Zen Kaku Gothic New", "Hiragino Sans", "Noto Sans JP", sans-serif;
  --font-hero-en: "Outfit", sans-serif;
  --font-num: "Montserrat", sans-serif;
  --content: min(1100px, calc(100% - 48px));
  --page: min(1440px, 100%);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: #000;
  background: #fff;
  font-family: var(--font-jp);
  font-weight: 400;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

.pc-only {
  display: none;
}

@media (min-width: 900px) {
  .pc-only {
    display: inline;
  }
}

/* Header */
.site-header {
  position: fixed;
  z-index: 40;
  top: 0;
  left: 0;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 20px;
  background: transparent;
  transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.5);
  box-shadow: 0 4px 24px rgba(37, 68, 109, 0.08);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 36px);
  color: var(--color-main);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  border-radius: 60px;
  border: 1px solid #000;
  font-family: var(--font-jp);
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  transition: background-color 0.35s ease, color 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

.btn--sm {
  padding: 12px 20px 15px 40px;
  background: #fff;
  font-size: 16px;
}

.btn--lg {
  padding: 14px 24px 18px 40px;
  background: #fff;
  font-size: 20px;
}

.btn--outline {
  background: #fff;
  color: #000;
}

.btn--outline:hover {
  background: var(--color-main);
  color: #fff;
  border-color: var(--color-main);
}

.btn--outline:hover .btn__arrow {
  background-color: #fff;
  color: var(--color-main);
}

.btn.btn--hover-yellow:hover {
  background: var(--color-yellow);
  color: #000;
  border-color: #000;
}

.btn.btn--hover-yellow:hover .btn__arrow {
  background-color: var(--color-main);
  color: #fff;
}

.btn--primary {
  padding: 12px 20px 16px 40px;
  background: var(--color-main);
  color: #fff;
  font-size: 18px;
}

.btn--primary:hover {
  background: #fff;
  color: var(--color-main);
}

.btn--primary:hover .btn__arrow {
  background-color: var(--color-main);
  color: #fff;
}

.btn__label {
  display: block;
  overflow: hidden;
  height: 1em;
  line-height: 1;
}

.btn__label-track {
  display: flex;
  flex-direction: column;
  transition: transform 0.45s cubic-bezier(0.65, 0, 0.35, 1);
}

.btn__label-track>span {
  display: block;
  height: 1em;
  line-height: 1;
}

.btn:hover .btn__label-track {
  transform: translateY(-50%);
}

.btn__arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 35px;
  height: 35px;
  flex-shrink: 0;
  border-radius: 50%;
  background-color: var(--color-main);
  color: #fff;
  font-size: 14px;
  line-height: 1;
  transition: background-color 0.25s ease, color 0.25s ease;
}

.btn__arrow::before {
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  content: "\f061";
}

.btn--primary .btn__arrow {
  background-color: #fff;
  color: var(--color-main);
}

.lang-switch {
  display: none;
  align-items: stretch;
}

@media (min-width: 960px) {
  .site-header {
    padding: 30px 60px;
  }

  .header-actions {
    gap: 20px;
  }

  .btn--sm {
    font-size: 20px;
  }

  .lang-switch {
    display: flex;
  }
}

.lang-switch__item {
  padding: 10px 10px 12px;
  border: 1px solid #000;
  font-weight: 700;
  font-size: 16px;
  line-height: 1;
}

.lang-switch__item:first-child {
  border-right: 0;
  border-radius: 5px 0 0 5px;
}

.lang-switch__item:last-child {
  border-radius: 0 5px 5px 0;
}

.lang-switch__item.is-inactive {
  background: #e8e8e8;
  color: #adadad;
}

.lang-switch__item.is-active {
  background: var(--color-main);
  color: #fff;
}

.menu-btn {
  position: relative;
  width: 50px;
  height: 40px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.menu-btn span {
  position: absolute;
  left: 0;
  top: 18px;
  display: block;
  width: 50px;
  height: 4px;
  background: var(--color-main);
  transform-origin: center;
  transition: transform 0.35s ease, opacity 0.2s ease;
}

.menu-btn span:nth-child(1) {
  transform: translateY(-14px);
}

.menu-btn span:nth-child(3) {
  transform: translateY(14px);
}

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

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

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

.nav-drawer {
  position: fixed;
  z-index: 45;
  inset: 0;
  display: flex;
  align-items: center;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 120px clamp(24px, 6vw, 80px) 48px;
  background: #fff;
  transform: translateX(100%);
  visibility: hidden;
  pointer-events: none;
  overflow-y: auto;
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1), visibility 0.45s;
}

.nav-drawer.is-open {
  transform: translateX(0);
  visibility: visible;
  pointer-events: auto;
}

.nav-open {
  overflow: hidden;
}

.nav-open .site-header {
  z-index: 60;
}

.nav-drawer ul {
  width: min(880px, 100%);
  margin: 0 auto;
  padding: 0;
  list-style: none;
}

.nav-drawer a {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 16px 0 18px;
  color: var(--color-main);
  border-bottom: 1px solid #e4e4e4;
}

.nav-drawer__en {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 3.2vw, 46px);
  line-height: 1.15;
  text-transform: uppercase;
}

.nav-drawer__ja {
  font-family: var(--font-jp);
  font-weight: 900;
  font-size: clamp(14px, 1.8vw, 20px);
  line-height: 1.4;
}

.nav-drawer li:last-child a {
  border-bottom: 0;
}

/* Hero */
.hero {
  position: relative;
  min-height: clamp(730px, 72vw, 920px);
  overflow: hidden;
  display: grid;
  place-items: center;
}

.hero__media {
  position: absolute;
  inset: 0;
}

.hero__bg {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: calc(clamp(700px, 72vw, 920px) * 2880 / 1852);
  max-width: none;
  height: auto;
  pointer-events: none;
}

.hero__copy {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 120px 20px 80px;
}

.hero__outline {
  display: block;
  position: relative;
  z-index: 0;
  margin: 0 auto;
  width: min(1184px, 92vw);
  height: auto;
  pointer-events: none;
}

.hero__title {
  position: relative;
  z-index: 1;
  margin: clamp(-210px, -14vw, -10px) 0 0;
  font-family: var(--font-jp);
  font-weight: 900;
  font-size: clamp(28px, 5.5vw, 80px);
  line-height: 1.2;
  background: linear-gradient(90deg, #25446d 0%, #4884d3 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__title-shine {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    transparent 42%,
    rgba(255, 255, 255, 0.15) 46%,
    rgba(255, 255, 255, 0.95) 50%,
    rgba(255, 255, 255, 0.15) 54%,
    transparent 58%,
    transparent 100%
  );
  background-size: 250% 100%;
  background-position: 0% 0;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  pointer-events: none;
  animation: hero-glint 1.8s ease-in-out 2.8s forwards;
}

@keyframes hero-glint {
  from {
    background-position: 0% 0;
  }

  to {
    background-position: 100% 0;
  }
}

.hero__title--en {
  font-size: clamp(22px, 3.4vw, 52px);
}

/* Shared section */
.section {
  position: relative;
  padding: 80px 0;
}

.section__inner {
  width: var(--content);
  margin: 0 auto;
}

.section-heading {
  position: relative;
  text-align: center;
  margin-bottom: 32px;
}

.section-heading__en {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(40px, 7vw, 90px);
  line-height: 1.2;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
}

.section-heading__en--muted {
  color: var(--color-outline-muted);
}

.section-heading__en--white {
  color: #fff;
}

.section-heading__en--gray {
  color: var(--color-outline-gray);
}

.section-heading__en--soft {
  color: var(--color-outline-soft);
}

.section-heading__en--outline-light {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--color-outline-mission);
}

.section-heading__en--outline-muted {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--color-outline-contact);
}

.section-heading__ja {
  margin: -35px 0 0;
  font-family: var(--font-jp);
  font-weight: 900;
  font-size: clamp(18px, 2.4vw, 32px);
  line-height: 1.4;
  color: var(--color-main);
}

.section-heading__ja--light {
  color: #fff;
}

/* About */
.about {
  padding: 100px 0;
  background-color: #fff;
}

.about__lead {
  margin: 0 auto 30px;
  max-width: 911px;
  text-align: center;
  font-size: clamp(16px, 1.6vw, 20px);
  line-height: 2;
}

.about__figure {
  margin: 0 auto;
  max-width: 680px;
}

.about__figure img {
  width: 100%;
  border-radius: 8px;
}

/* Mission */
.mission {
  --mission-slant: clamp(100px, 14.6vw, 210px);
  position: relative;
  width: 100%;
  padding: 0 0 clamp(48px, 8vw, 120px);
  background-color: var(--color-gray-bg);
}

.mission__panel {
  position: relative;
  overflow: hidden;
  padding: clamp(200px, 18vw, 280px) 0 calc(var(--mission-slant) + 56px);
}

.mission__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.mission__bg-yellow,
.mission__bg-navy,
.mission__bg-navy-top {
  position: absolute;
  inset: 0;
}

.mission__bg-yellow {
  background-color: var(--color-yellow);
  clip-path: polygon(0 var(--mission-slant),
      100% 0,
      100% calc(100% - var(--mission-slant)),
      0 100%);
}

.mission__bg-navy {
  background-color: var(--color-main);
  clip-path: polygon(100% var(--mission-slant),
      0 0,
      0 calc(100% - var(--mission-slant)),
      100% 100%);
}

.mission__bg-navy-top {
  background-color: #fff;
  clip-path: polygon(0 0, 100% 0, 50% calc(var(--mission-slant) / 2));
}

.mission__inner {
  position: relative;
  z-index: 1;
}

.mission .section-heading {
  margin-bottom: 48px;
}

.mission-cards {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.mission-card {
  background: #fff;
  border: 1px solid #000;
  border-radius: 10px;
  padding: 28px 28px 32px;
  box-shadow: 1px 1px 20px rgba(0, 0, 0, 0.15);
}

@media (min-width: 768px) {
  .mission-card {
    padding: 30px 60px;
  }
}

.mission-card__label {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  width: fit-content;
  background: var(--color-main);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(14px, 1.6vw, 20px);
  line-height: 1.8;
  text-transform: uppercase;
  padding: 3px 10px;
  margin-bottom: 8px;
}

.mission-card__title {
  margin: 0 0 5px;
  font-family: var(--font-jp);
  font-weight: 900;
  font-size: clamp(16px, 2.2vw, 28px);
  line-height: 1.6;
  color: var(--color-main);
}

.mission-card__title--en {
  font-family: var(--font-display);
  font-weight: 700;
}

.mission-card__text {
  margin: 0;
  max-width: 750px;
  font-size: clamp(14px, 1.6vw, 20px);
  line-height: 1.8;
}

.mission-card--values {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.value-item+.value-item {
  margin-top: 10px;
}

.value-item {
  display: flex;
  flex-direction: column;
}

/* Business */
.business {
  padding: 0;
  background-color: var(--color-gray-bg);
}

.business__panel {
  border-radius: 50px;
  background: linear-gradient(123deg, #becde1 2%, #4980c7 98%);
  padding: 100px 0 120px;
}

.business .section-heading {
  margin-bottom: 56px;
}

.business-grid {
  display: grid;
  gap: 24px;
}

@media (min-width: 960px) {
  .business-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
  }
}

.business-card {
  position: relative;
  padding-top: 48px;
}

.business-card__num {
  position: absolute;
  top: 0;
  left: 18px;
  margin: 0;
  font-family: var(--font-num);
  font-weight: 900;
  font-size: clamp(80px, 8vw, 96px);
  line-height: 1;
  color: var(--color-main);
  z-index: 1;
  pointer-events: none;
}

.business-card__body {
  background: #fff;
  border: 1px solid #000;
  border-radius: 10px;
  padding: 28px 24px 32px;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}

@media (min-width: 960px) {
  .business-card__body {
    padding: 40px 30px 36px;
  }
}

.business-card__icon {
  width: 200px;
  height: 150px;
  overflow: hidden;
  display: grid;
  place-items: center;
}

.business-card__icon img {
  width: 200px;
  height: 150px;
  object-fit: cover;
  object-position: center;
}

.business-card__title {
  margin: 0;
  font-weight: 700;
  font-size: clamp(18px, 2vw, 28px);
  line-height: 1.3;
}

.business-card__text {
  margin: 0;
  font-size: clamp(14px, 1.5vw, 20px);
  line-height: 1.8;
  text-align: left;
}

/* Materials */
.materials {
  padding: 100px 0 80px;
  background: var(--color-gray-bg);
}

.materials__lead {
  margin: 0 auto 36px;
  max-width: 900px;
  text-align: center;
  font-size: clamp(16px, 1.6vw, 20px);
}

.product-card {
  display: grid;
  gap: 20px;
  background: #fff;
  border: 1px solid var(--color-main);
  border-radius: 10px;
  padding: 28px 24px;
  overflow: hidden;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: box-shadow 0.35s ease, transform 0.35s ease;
}

.product-card:hover {
  box-shadow: 0 14px 36px rgba(37, 68, 109, 0.14);
  transform: translateY(-4px);
}

.product-card:focus-visible {
  outline: 2px solid var(--color-main);
  outline-offset: 4px;
}

@media (min-width: 960px) {
  .product-card {
    grid-template-columns: 1.2fr 0.9fr;
    align-items: center;
    gap: 40px;
    padding: 40px 48px;
    min-height: 414px;
  }
}

.product-card__content {
  min-width: 0;
}

.product-card .btn--wrap {
  max-width: 100%;
  white-space: normal;
}

.product-card .btn--wrap .btn__label {
  height: auto;
}

.product-card .btn--wrap .btn__label-track {
  display: grid;
}

.product-card .btn--wrap .btn__label-track>span {
  grid-area: 1 / 1;
  height: auto;
  white-space: normal;
}

.product-card .btn--wrap:hover .btn__label-track {
  transform: none;
}

.product-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
  margin-bottom: 18px;
}

.product-card__tag {
  display: inline-flex;
  align-items: center;
  background: var(--color-accent);
  color: #fff;
  font-weight: 700;
  font-size: clamp(14px, 1.6vw, 16px);
  line-height: 1.8;
  padding: 2px 6px;
}

.product-card__name {
  margin: 0;
  font-weight: 700;
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.4;
}

.product-card__text {
  margin: 0 0 28px;
  max-width: 672px;
  font-size: clamp(16px, 1.6vw, 20px);
  line-height: 2;
}

.product-card__media {
  margin: 0;
  border-radius: 8px;
  overflow: hidden;
  max-height: 320px;
}

.product-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.product-card:hover .product-card__media img {
  transform: scale(1.04);
}

/* Company */
.company {
  padding: 80px 0 100px;
  background: #fff;
}

.company-table {
  margin: 40px auto 0;
  max-width: 931px;
}

.company-table__row {
  display: grid;
  gap: 8px;
  padding: 18px 0;
  border-bottom: 1px solid #000;
}

@media (min-width: 768px) {
  .company-table__row {
    grid-template-columns: 140px 1fr;
    gap: 40px;
    padding: 22px 0;
  }
}

.company-table__row dt,
.company-table__row dd {
  margin: 0;
  font-size: clamp(16px, 1.6vw, 20px);
  line-height: 1.8;
}

.company-table__row dt {
  font-weight: 700;
}

/* Contact */
.contact {
  padding: 80px 20px 40px;
  background: var(--color-main);
  text-align: center;
}

.contact-page {
  padding-top: 160px;
  background: #fff;
}

.product-detail {
  padding-top: 140px;
  padding-bottom: 100px;
  background: #fff;
}

.product-detail__hero,
.product-detail__story {
  display: grid;
  gap: 28px;
  align-items: start;
}

.product-detail__story {
  margin-top: 72px;
}

.product-detail__photo {
  position: relative;
  margin: 0;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  background: var(--color-gray-bg);
  border-radius: 10px;
}

.product-slider__track {
  display: flex;
  height: 100%;
  transition: transform 0.45s ease;
}

.product-detail__photo img {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: contain;
}

.product-slider__nav {
  position: absolute;
  top: 50%;
  width: 35px;
  height: 35px;
  border: 0;
  border-radius: 50%;
  background: #eee;
  cursor: pointer;
  transform: translateY(-50%);
}

.product-slider__nav::before {
  content: "";
  display: block;
  width: 8px;
  height: 8px;
  margin: 0 auto;
  border-top: 2px solid #fff;
  border-right: 2px solid #fff;
}

.product-slider__prev {
  left: 0;
}

.product-slider__prev::before {
  transform: rotate(-135deg);
  margin-left: 9px;
}

.product-slider__next {
  right: 0;
}

.product-slider__next::before {
  transform: rotate(45deg);
  margin-right: 9px;
}

.product-slider__dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  justify-content: center;
  gap: 8px;
}

.product-slider__dot {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(37, 68, 109, 0.28);
  cursor: pointer;
}

.product-slider__dot.is-active {
  background: var(--color-main);
}

.product-detail .product-card__tag {
  align-self: flex-start;
  width: fit-content;
  margin-bottom: 12px;
}

.product-detail__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(32px, 6vw, 72px);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--color-main);
}

.product-detail__sub {
  margin: 10px 0 0;
  font-weight: 700;
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.5;
  color: var(--color-main);
}

.product-detail__lead {
  margin: 20px 0 0;
  max-width: 36em;
  text-align: left;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.9;
}

.product-detail__spec {
  margin: 28px 0 0;
}

.product-detail__spec div {
  display: grid;
  grid-template-columns: 9.5em 1fr;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid #e4e4e4;
}

.product-detail__spec dt,
.product-detail__spec dd {
  margin: 0;
  font-size: clamp(15px, 1.5vw, 16px);
  line-height: 1.7;
}

.product-detail__spec dt {
  font-weight: 700;
  color: var(--color-main);
}

.product-detail__buy {
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.product-detail .btn {
  align-self: center;
  margin-top: 28px;
}

.product-detail__copy h2 {
  margin: 40px 0 14px;
  color: var(--color-main);
  font-size: clamp(18px, 2.4vw, 28px);
  line-height: 1.4;
}

.product-detail__copy h2:first-child {
  margin-top: 0;
}

.product-detail__heading {
  display: flex;
  align-items: center;
  gap: 12px;
}

.product-detail__heading::before {
  content: "";
  width: 4px;
  height: 1.6em;
  flex-shrink: 0;
  background: var(--color-main);
}

.product-detail__copy p,
.product-detail__copy li {
  margin: 0;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.9;
}

.product-detail__copy p+p {
  margin-top: 1em;
}

.product-detail__copy ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.product-detail__copy li {
  display: grid;
  grid-template-columns: 11em 1fr;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid #e4e4e4;
}

.product-detail__copy li strong {
  color: var(--color-main);
}

@media (min-width: 960px) {
  .product-detail__hero {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 64px;
    align-items: center;
  }
}

.contact-form {
  max-width: 720px;
  margin: 8px auto 0;
  display: grid;
  gap: 22px;
  text-align: left;
}

.contact-form__field label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-weight: 700;
  font-size: 16px;
}

.contact-form__required,
.contact-form__optional {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.4;
}

.contact-form__required {
  background: var(--color-main);
  color: #fff;
}

.contact-form__optional {
  background: #e8e8e8;
  color: #666;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--color-main);
  border-radius: 8px;
  padding: 14px 16px;
  background: #fff;
  color: #000;
  font: inherit;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: #9a9a9a;
}

.contact-form textarea {
  min-height: 180px;
  resize: vertical;
}

.contact-form input[aria-invalid="true"],
.contact-form textarea[aria-invalid="true"] {
  border-color: #b42318;
}

.contact-form__error,
.contact-form__alert {
  margin: 8px 0 0;
  color: #b42318;
  font-size: 14px;
  line-height: 1.6;
}

.contact-form__alert {
  max-width: 720px;
  margin: 0 auto 20px;
  text-align: center;
}

.contact-form__success {
  max-width: 720px;
  margin: 0 auto;
  padding: 28px 24px;
  border-radius: 10px;
  text-align: center;
  font-weight: 700;
  font-size: clamp(16px, 1.6vw, 20px);
  line-height: 1.8;
}

.contact-thanks {
  display: grid;
  justify-items: center;
  gap: 28px;
}

.contact-thanks .btn {
  border: 1px solid transparent;
}

.contact-thanks .btn:hover {
  border-color: #000;
}

.contact-form .btn {
  justify-self: center;
  border: 1px solid #000;
  cursor: pointer;
}

.contact-form__trap {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.contact__panel {
  width: min(1100px, 100%);
  margin: 0 auto;
  background: var(--color-main-deep);
  border-radius: 10px;
  padding: 56px 24px 64px;
}

.contact__lead {
  margin: 8px 0 36px;
  color: #fff;
  font-size: clamp(16px, 1.6vw, 20px);
}

.copyright {
  margin: 36px 0 0;
  color: #fff;
  font-size: 14px;
}

.copyright--plain {
  margin: 0;
  padding: 28px 20px 32px;
  background: #fff;
  color: var(--color-main);
  text-align: center;
}

@media (min-width: 768px) {
  .copyright {
    font-size: 16px;
  }
}

/* Motion / presence */
.hero__copy,
.section-heading,
.mission-card,
.business-card {
  animation: rise-in 0.8s ease both;
}

.product-card {
  animation: rise-in-fade 0.8s ease both;
}

.business-card:nth-child(2) {
  animation-delay: 0.08s;
}

.business-card:nth-child(3) {
  animation-delay: 0.16s;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes rise-in-fade {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .btn__label-track {
    transition: transform 0.45s cubic-bezier(0.65, 0, 0.35, 1) !important;
  }

  html {
    scroll-behavior: auto;
  }
}

@media (max-width: 719px) {

  .header-actions {
    gap: 8px;
  }

  .lang-switch {
    display: flex;
  }

  .lang-switch__item {
    padding: 7px 6px 8px;
    font-size: 12px;
  }

  .menu-btn {
    width: 32px;
    height: 32px;
  }

  .menu-btn span {
    top: 14.5px;
    width: 32px;
    height: 3px;
  }

  .menu-btn span:nth-child(1) {
    transform: translateY(-9px);
  }

  .menu-btn span:nth-child(3) {
    transform: translateY(9px);
  }

  .header-actions .btn--sm {
    display: none;
  }

  .btn,
  .btn--sm,
  .btn--lg,
  .btn--primary {
    gap: 10px;
    padding: 8px 14px 10px 22px;
    font-size: 14px;
  }

  .btn__arrow {
    width: 26px;
    height: 26px;
    font-size: 11px;
  }

  .business-card__title br {
    display: none;
  }

  body,
  .about__lead,
  .mission-card__text,
  .business-card__text,
  .materials__lead,
  .product-card__text,
  .product-detail__lead,
  .product-detail__copy p,
  .product-detail__copy li,
  .product-detail__spec dt,
  .product-detail__spec dd,
  .contact__lead,
  .company-table__row dt,
  .company-table__row dd,
  .contact-form__field label {
    font-size: 14px;
  }

  .product-card__name {
    font-size: 18px;
  }

  .product-detail__copy li {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .section-heading__ja {
    margin: -20px 0 0;
  }

  .section-heading__en {
    white-space: normal;
    font-size: clamp(28px, 12vw, 48px);
  }

  .mission__panel {
    padding-top: 160px;
  }

  .product-card__content {
    display: contents;
  }

  .product-card__head,
  .product-card__text {
    margin-bottom: 0;
  }

  .product-card__media {
    order: 1;
    aspect-ratio: 4 / 3;
    max-height: none;
  }

  .product-card .btn {
    order: 2;
    justify-self: center;
  }

  .product-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
  }

  .product-card:hover {
    box-shadow: none;
    transform: none;
  }

  .product-card:hover .product-card__media img {
    transform: none;
  }

  .product-card .btn:hover .btn__label-track {
    transform: none;
  }

  .product-card .btn--primary:hover {
    background: var(--color-main);
    color: #fff;
  }

  .product-card .btn--primary:hover .btn__arrow {
    background-color: #fff;
    color: var(--color-main);
  }
}