:root {
  --black: #050505;
  --ink: #111;
  --muted: #646464;
  --line: #d8d8d8;
  --blue: #095ff0;
  --white: #fff;
  --max: 1200px;
  --gutter: clamp(20px, 4.8vw, 68px);
  --section: clamp(72px, 9vw, 124px);
  --header-height: 78px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "Noto Sans JP", "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

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

button {
  font: inherit;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  color: var(--white);
  background: var(--black);
  transform: translateY(-160%);
}

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

.site-header {
  position: relative;
  z-index: 20;
  height: var(--header-height);
  background: var(--white);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.header-inner {
  width: min(100% - (var(--gutter) * 2), 1420px);
  height: 100%;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand,
.menu-button {
  position: relative;
  z-index: 3;
}

.brand img {
  width: 190px;
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(22px, 2.5vw, 40px);
}

.site-nav a {
  position: relative;
  padding-block: 12px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.075em;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 4px;
  left: 0;
  height: 2px;
  content: "";
  background: var(--black);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

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

.menu-button {
  display: none;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--black);
  cursor: pointer;
}

.menu-lines,
.menu-lines::before,
.menu-lines::after {
  display: block;
  width: 26px;
  height: 1.5px;
  margin-inline: auto;
  content: "";
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

.menu-lines::before {
  transform: translateY(-8px);
}

.menu-lines::after {
  transform: translateY(6px);
}

.menu-button[aria-expanded="true"] .menu-lines {
  background: transparent;
}

.menu-button[aria-expanded="true"] .menu-lines::before {
  transform: translateY(2px) rotate(45deg);
}

.menu-button[aria-expanded="true"] .menu-lines::after {
  transform: translateY(0) rotate(-45deg);
}

.hero-desktop-image {
  display: block;
  width: 100%;
  height: clamp(400px, 34.2vw, 560px);
  object-fit: cover;
}

.hero-mobile-collage {
  display: none;
}

.intro {
  padding: clamp(56px, 6vw, 82px) var(--gutter) var(--section);
  text-align: center;
}

.intro-inner {
  width: min(100%, 860px);
  margin-inline: auto;
}

.intro h1 {
  margin: 0 0 24px;
  font-size: clamp(2.2rem, 3.6vw, 3.35rem);
  line-height: 1.18;
  letter-spacing: 0.01em;
}

.intro-lead {
  margin: 0;
  font-size: clamp(0.98rem, 1.35vw, 1.16rem);
  line-height: 1.9;
}

.intro-support {
  margin: 24px 0 30px;
  font-size: clamp(0.96rem, 1.3vw, 1.12rem);
}

.button {
  display: inline-flex;
  min-width: 248px;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  gap: 30px;
  padding: 13px 24px;
  color: var(--white);
  background: var(--blue);
  border: 1px solid var(--blue);
  font-size: 0.94rem;
  font-weight: 700;
  letter-spacing: 0.025em;
  transition: color 180ms ease, background 180ms ease;
}

.button::after {
  width: 8px;
  height: 8px;
  border-top: 1.5px solid currentColor;
  border-right: 1.5px solid currentColor;
  content: "";
  transform: rotate(45deg);
}

.button:hover,
.button:focus-visible {
  color: var(--blue);
  background: var(--white);
}

.section {
  padding: var(--section) var(--gutter);
}

.section-inner {
  width: min(100%, var(--max));
  margin-inline: auto;
}

.section-title {
  margin: 0 0 clamp(44px, 5.5vw, 68px);
  font-size: clamp(2.25rem, 4vw, 3.55rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.models {
  padding-top: 0;
}

.model {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.75fr);
  gap: clamp(44px, 7vw, 104px);
  align-items: center;
  margin-bottom: clamp(88px, 11vw, 144px);
}

.model:last-child {
  margin-bottom: 0;
}

.model--reverse {
  grid-template-columns: minmax(300px, 0.75fr) minmax(0, 1.1fr);
}

.model--reverse .model-media {
  grid-column: 2;
}

.model--reverse .model-copy {
  grid-column: 1;
  grid-row: 1;
}

.model-media {
  overflow: hidden;
  background: #eee;
}

.model-media img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  transition: transform 500ms ease;
}

.model:hover .model-media img {
  transform: scale(1.025);
}

.model-copy h3 {
  margin: 0;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--black);
  font-size: clamp(3rem, 5vw, 4.4rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.model-copy p {
  margin: 30px 0;
  color: #2e2e2e;
  font-size: clamp(1rem, 1.45vw, 1.16rem);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--blue);
  font-weight: 700;
}

.text-link::after {
  width: 9px;
  height: 9px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  content: "";
  transform: rotate(45deg);
  transition: transform 180ms ease;
}

.text-link:hover::after,
.text-link:focus-visible::after {
  transform: translateX(5px) rotate(45deg);
}

.news-section {
  background: var(--white);
}

.news-list {
  border-top: 2px solid var(--black);
}

.news-row {
  display: grid;
  grid-template-columns: 180px 1fr 24px;
  gap: 26px;
  align-items: center;
  padding: 27px 0;
  border-bottom: 1px solid var(--line);
}

.news-date {
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.05em;
}

.news-title {
  font-weight: 700;
}

.news-arrow {
  width: 10px;
  height: 10px;
  border-top: 2px solid var(--black);
  border-right: 2px solid var(--black);
  transform: rotate(45deg);
}

.news-action {
  margin-top: 44px;
  text-align: center;
}

.site-footer {
  padding: 48px var(--gutter) 28px;
  color: var(--white);
  background: var(--black);
}

.footer-main {
  width: min(100%, 1420px);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
}

.footer-brand img {
  width: 190px;
  height: auto;
  aspect-ratio: 500 / 110;
  object-fit: contain;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px 32px;
}

.footer-nav a {
  position: relative;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.07em;
}

.footer-nav a::after {
  position: absolute;
  right: 0;
  bottom: -6px;
  left: 0;
  height: 1px;
  content: "";
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

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

.footer-bottom {
  width: min(100%, 1420px);
  margin: 42px auto 0;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
}

.copyright {
  margin: 0;
  color: #b8b8b8;
  font-size: 0.82rem;
}

.top-button {
  width: 44px;
  height: 44px;
  color: var(--white);
  border: 1px solid #555;
  background: transparent;
  cursor: pointer;
}

.top-button::before {
  display: block;
  width: 10px;
  height: 10px;
  margin: 6px auto 0;
  border-top: 2px solid currentColor;
  border-left: 2px solid currentColor;
  content: "";
  transform: rotate(45deg);
}

.page-hero {
  padding: clamp(72px, 10vw, 140px) var(--gutter);
  color: var(--white);
  background: var(--black);
}

.page-hero-inner {
  width: min(100%, var(--max));
  margin-inline: auto;
}

.page-hero h1 {
  margin: 0;
  font-size: clamp(3.4rem, 9vw, 8rem);
  line-height: 0.9;
  letter-spacing: -0.055em;
}

.page-hero p {
  max-width: 720px;
  margin: 32px 0 0;
  color: #d4d4d4;
  font-size: clamp(1rem, 1.6vw, 1.2rem);
}

.page-hero--article time {
  display: block;
  margin-bottom: 28px;
  color: #bcbcbc;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
}

.page-hero--article h1 {
  max-width: 1100px;
  font-size: clamp(2.1rem, 5.4vw, 5.3rem);
  line-height: 1.18;
  letter-spacing: -0.035em;
}

.page-content {
  padding: var(--section) var(--gutter);
}

.article-body {
  font-size: clamp(1.03rem, 1.6vw, 1.2rem);
}

.article-body p {
  margin: 0 0 28px;
}

.article-back {
  padding-top: 42px;
}

.page-content-inner {
  width: min(100%, 920px);
  margin-inline: auto;
}

.page-content h2 {
  margin: 0 0 32px;
  font-size: clamp(2rem, 5vw, 4.2rem);
  line-height: 1.2;
}

.page-content h3 {
  margin: 70px 0 20px;
  font-size: clamp(1.4rem, 2.5vw, 2rem);
}

.page-lead {
  font-size: clamp(1.08rem, 1.8vw, 1.35rem);
}

.product-visual {
  width: min(100%, 760px);
  margin: 60px auto;
}

.product-visual img {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.feature-list {
  margin: 52px 0;
  padding: 0;
  border-top: 2px solid var(--black);
  list-style: none;
}

.feature-list li {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  font-weight: 700;
}

.company-table {
  width: 100%;
  border-collapse: collapse;
}

.company-table th,
.company-table td {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

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

.note {
  margin-top: 52px;
  padding: 28px;
  border: 1px solid var(--line);
}

.note .button {
  margin-top: 12px;
}

.video-page {
  width: min(100%, 1040px);
}

.video-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(260px, 0.55fr);
  gap: clamp(34px, 6vw, 72px);
  align-items: center;
}

.video-list {
  display: grid;
  gap: clamp(54px, 8vw, 92px);
  margin-bottom: clamp(72px, 10vw, 120px);
}

.video-page > h2:not(:first-child) {
  margin-top: 0;
}

.video-frame {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--black);
}

.video-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.video-copy h3 {
  margin-top: 0;
}

.contact-layout {
  width: min(100%, 760px);
}

.contact-intro {
  margin-bottom: 52px;
}

.form-required-note {
  margin-top: 24px;
  color: var(--muted);
  font-size: 0.9rem;
}

.form-required-note span,
.form-field label span,
.form-consent span span {
  color: #c9342f;
}

.contact-form {
  position: relative;
  display: grid;
  gap: 28px;
}

.form-field {
  display: grid;
  gap: 10px;
}

.form-field label,
.form-consent {
  font-weight: 700;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  min-height: 56px;
  padding: 13px 15px;
  color: var(--ink);
  border: 1px solid #9c9c9c;
  border-radius: 0;
  background: var(--white);
  font: inherit;
}

.form-field textarea {
  min-height: 210px;
  resize: vertical;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--blue);
  outline: 3px solid #cfe2fb;
  outline-offset: 1px;
}

.form-consent {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  cursor: pointer;
}

.form-consent input {
  width: 22px;
  height: 22px;
  margin: 4px 0 0;
  flex: 0 0 auto;
  accent-color: var(--blue);
}

.form-submit {
  cursor: pointer;
}

.form-submit:disabled {
  cursor: wait;
  opacity: 0.62;
}

.form-status {
  min-height: 1.8em;
  margin: 0;
  font-weight: 700;
}

.form-status[data-state="success"] {
  color: #126b38;
}

.form-status[data-state="error"] {
  color: #b5221d;
}

.form-honeypot {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.source-note {
  margin-top: 72px;
  color: var(--muted);
  font-size: 0.82rem;
}

.breadcrumbs {
  padding: 18px var(--gutter);
  border-bottom: 1px solid var(--line);
}

.breadcrumbs ol {
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  color: var(--muted);
  font-size: 0.78rem;
  list-style: none;
}

.breadcrumbs li:not(:last-child)::after {
  margin-left: 14px;
  content: "/";
}

.breadcrumbs a:hover,
.breadcrumbs a:focus-visible {
  color: var(--blue);
}

.page-hero--product-detail {
  padding-block: clamp(62px, 8vw, 110px);
}

.page-hero--product-detail h1 {
  max-width: 1000px;
  font-size: clamp(2.6rem, 6.4vw, 6rem);
  line-height: 1.08;
}

.page-model {
  margin: 0 0 18px !important;
  color: #9f9f9f !important;
  font-size: 0.84rem !important;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.product-subnav {
  width: min(100% - (var(--gutter) * 2), var(--max));
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
}

.product-subnav a {
  padding: 20px 22px;
  border-bottom: 3px solid transparent;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.product-subnav a:hover,
.product-subnav a:focus-visible,
.product-subnav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--blue);
}

.product-detail p {
  margin: 0 0 24px;
}

.product-detail h2:not(:first-child) {
  margin-top: clamp(64px, 8vw, 96px);
}

.product-detail .article-back {
  margin-top: 72px;
}

.content-note {
  color: var(--muted);
  font-size: 0.86rem;
}

.spec-list {
  margin: 0;
  border-top: 2px solid var(--black);
}

.spec-list > div {
  display: grid;
  grid-template-columns: minmax(190px, 0.8fr) minmax(0, 1.2fr);
  gap: 28px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

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

.spec-list dd {
  margin: 0;
}

.voice-list,
.faq-list {
  display: grid;
  gap: 0;
  border-top: 2px solid var(--black);
}

.voice-list section,
.faq-list section {
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
}

.voice-list h3,
.faq-list h3 {
  margin: 0 0 14px;
}

.voice-list p:last-child,
.faq-list p:last-child {
  margin-bottom: 0;
}

.product-index-links {
  margin: 52px 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 2px solid var(--black);
}

.product-index-links a {
  min-height: 132px;
  padding: 24px 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.product-index-links a:nth-child(even) {
  border-right: 0;
}

.product-index-links strong,
.product-index-links span {
  display: block;
}

.product-index-links strong {
  margin-bottom: 8px;
  font-size: 1.08rem;
}

.product-index-links span {
  color: var(--muted);
  font-size: 0.86rem;
}

.product-index-links a:hover strong,
.product-index-links a:focus-visible strong {
  color: var(--blue);
}

:focus-visible {
  outline: 3px solid #75aef5;
  outline-offset: 4px;
}

@media (max-width: 1100px) {
  :root {
    --header-height: 68px;
  }

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

  .brand img {
    width: 164px;
  }

  .menu-button {
    display: block;
  }

  body.menu-open::before {
    position: fixed;
    z-index: 15;
    inset: 0;
    content: "";
    background: rgba(0, 0, 0, 0.72);
  }

  body.menu-open .brand {
    opacity: 0.18;
  }

  .site-nav {
    position: fixed;
    z-index: 2;
    top: 0;
    right: 0;
    bottom: 0;
    display: grid;
    width: min(420px, 100%);
    padding: 132px 46px 64px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 36px;
    align-content: start;
    background: var(--white);
    color: var(--ink);
    opacity: 0;
    visibility: hidden;
    transform: translateX(100%);
    transition: opacity 220ms ease, transform 280ms cubic-bezier(0.22, 1, 0.36, 1), visibility 220ms;
  }

  .site-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
  }

  .site-nav a {
    padding: 21px 0 18px;
    border-bottom: 1px solid var(--line);
    font-size: 1rem;
    letter-spacing: 0.06em;
  }

  .site-nav a::after {
    right: auto;
    bottom: -1px;
    width: 48px;
    height: 2px;
  }

  .menu-button[aria-expanded="true"] {
    position: fixed;
    top: 10px;
    right: max(20px, calc((100vw - 1420px) / 2));
    z-index: 4;
  }
}

@media (max-width: 860px) {
  .model,
  .model--reverse {
    grid-template-columns: 1fr;
    gap: 38px;
  }

  .model--reverse .model-media,
  .model--reverse .model-copy {
    grid-column: auto;
    grid-row: auto;
  }

  .model--reverse .model-media {
    order: 0;
  }

  .model--reverse .model-copy {
    order: 1;
  }

  .model-copy h3 {
    font-size: clamp(3rem, 14vw, 5rem);
  }

  .news-row {
    grid-template-columns: 1fr 20px;
    gap: 8px 18px;
  }

  .news-date {
    grid-column: 1;
    color: var(--muted);
    font-size: 0.84rem;
  }

  .news-title {
    grid-column: 1;
  }

  .news-arrow {
    grid-column: 2;
    grid-row: 1 / span 2;
  }

  .footer-main,
  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-nav {
    width: 100%;
    justify-content: flex-start;
  }

  .footer-bottom {
    margin-top: 34px;
    flex-direction: row;
  }

  .video-feature {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  body.menu-open .site-header {
    background: var(--black);
    border-bottom-color: transparent;
  }

  body.menu-open::before {
    display: none;
  }

  body.menu-open .brand {
    opacity: 1;
  }

  body.menu-open .brand img {
    filter: invert(1);
  }

  body.menu-open .menu-button {
    color: var(--white);
  }

  .site-nav {
    width: 100%;
    padding: 124px 20px 48px;
    gap: 0 24px;
    color: var(--white);
    background: var(--black);
  }

  .site-nav a {
    padding: 22px 0 18px;
    border-bottom-color: #313131;
    font-size: 1.02rem;
  }

  .menu-button[aria-expanded="true"] {
    right: 12px;
  }

  .hero-desktop-image {
    display: none;
  }

  .hero-mobile-collage {
    display: block;
    background: var(--black);
  }

  .hero-mobile-bikes {
    display: grid;
    height: 252px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    background: var(--white);
  }

  .hero-mobile-bikes img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .hero-mobile-bikes img:first-child {
    object-position: 48% center;
  }

  .hero-mobile-bikes img:last-child {
    object-position: 54% center;
  }

  .hero-mobile-brand {
    display: flex;
    height: 74px;
    align-items: center;
    justify-content: center;
  }

  .hero-mobile-brand img {
    width: 176px;
    height: auto;
  }

  .intro {
    padding-top: 50px;
    text-align: left;
  }

  .intro h1 {
    margin-bottom: 20px;
    font-size: clamp(2.15rem, 10.5vw, 2.65rem);
    letter-spacing: -0.025em;
  }

  .intro-lead {
    font-size: 0.98rem;
    line-height: 1.85;
  }

  .intro-support {
    margin: 22px 0 26px;
  }

  .button {
    width: 100%;
  }

  .section-title {
    font-size: 2.55rem;
  }

  .site-footer {
    padding: 42px 20px 24px;
  }

  .footer-brand img {
    width: 182px;
    height: auto;
  }

  .footer-main {
    gap: 34px;
  }

  .footer-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 28px;
    border-top: 1px solid #333;
  }

  .footer-nav a {
    min-height: 50px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid #292929;
    font-size: 0.76rem;
  }

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

  .footer-bottom {
    align-items: center;
  }

  .company-table,
  .company-table tbody,
  .company-table tr,
  .company-table th,
  .company-table td {
    display: block;
    width: 100%;
  }

  .company-table th {
    padding-bottom: 2px;
    border-bottom: 0;
  }

  .company-table td {
    padding-top: 2px;
  }

  .product-subnav {
    width: 100%;
    padding-inline: 20px;
    flex-wrap: nowrap;
    overflow-x: auto;
  }

  .product-subnav a {
    flex: 0 0 auto;
    padding-inline: 14px;
  }

  .spec-list > div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .product-index-links {
    grid-template-columns: 1fr;
  }

  .product-index-links a {
    min-height: auto;
    border-right: 0;
  }
}

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