/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Noto Sans JP', sans-serif;
  background-color: #0B1D26;
  color: #FFFFFF;
  overflow-x: hidden;
}

/* Container */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
}

/* ===========================
   Hero Section
   =========================== */
.hero {
  position: relative;
  width: 100%;
  overflow: hidden;
}

/* Hero Slider */
.hero-slider {
  position: relative;
  width: 100%;
  z-index: 1;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.hero-slide:first-child {
  position: relative;
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(11, 29, 38, 0.3);
  pointer-events: none;
  z-index: 1;
}

.hero-slide::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60%;
  background: linear-gradient(to top, #0B1D26 0%, #0B1D26 10%, rgba(11, 29, 38, 0.8) 30%, rgba(11, 29, 38, 0) 100%);
  pointer-events: none;
  z-index: 1;
}

.hero-image {
  width: 100%;
  height: auto;
  min-height: 100vh;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.hero-bottom-gradient {
  display: none;
}

.hero-content {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 3;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  padding-top: 350px;
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 1s ease, transform 1s ease;
}

.hero-content.animate-in {
  opacity: 1;
  transform: translateY(0);
}

/* Sub Heading */
.sub-heading {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-bottom: 24px;
}

.sub-heading .line {
  width: 72px;
  height: 2px;
  background-color: #FBD784;
}

.sub-heading .text {
  font-family: 'Lato', sans-serif;
  font-weight: 400;
  font-size: 18px;
  color: #FBD784;
  text-transform: uppercase;
  letter-spacing: 6px;
}

/* Main Heading */
.main-heading {
  font-family: 'Noto Serif JP', serif;
  font-weight: 700;
  font-size: 128px;
  line-height: 100px;
  color: #FFFFFF;
  margin-bottom: 43px;
  text-transform: capitalize;
}

/* Description */
.description {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 500;
  font-size: 16px;
  line-height: 40px;
  color: #FFFFFF;
  max-width: 841px;
  margin-bottom: 111px;
}

.description p {
  margin-bottom: 0;
}

/* Indicators */
.indicators {
  display: flex;
  gap: 1px;
}

.indicator {
  width: 58px;
  height: 3px;
  background-color: #D9D9D9;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.indicator.active {
  background-color: #9E8D0B;
}

/* Scroll Down */
.scroll-down {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: calc(100vh - 120px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
  z-index: 3;
}

.scroll-text {
  font-family: 'Lato', sans-serif;
  font-weight: 900;
  font-size: 18px;
  color: #FFFFFF;
  white-space: nowrap;
}

.scroll-arrow {
  width: 16px;
  height: 24px;
}

/* Section Number */
.section-number {
  position: absolute;
  left: 229px;
  top: 50%;
  transform: translateY(-50%);
  font-family: 'Lato', sans-serif;
  font-weight: 900;
  font-size: 240px;
  line-height: 240px;
  color: #FFFFFF;
  opacity: 0.1;
  z-index: 2;
}

/* ===========================
   Product Sections
   =========================== */
.product-section {
  position: relative;
  padding: 150px 0;
  overflow: hidden;
  background-color: #0B1D26;
}

/* Section 01 Styles */
.section-01 {
  padding: 0;
}

.section-01 .product-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 0 0 100px;
  align-items: stretch;
  gap: 0;
}

.section-01 .product-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}

.section-01 .product-info::before {
  content: '01';
  position: absolute;
  left: -100px;
  top: 50px;
  font-family: 'Lato', sans-serif;
  font-weight: 900;
  font-size: 240px;
  line-height: 1;
  color: #FFFFFF;
  opacity: 0.1;
}

.section-01 .product-image {
  flex-shrink: 0;
  width: 570px;
  height: 613px;
  overflow: hidden;
}

.section-01 .product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

/* Section 02 Styles */
.section-02 {
  padding: 0;
}

.section-02 .product-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0;
  align-items: stretch;
  gap: 0;
  flex-direction: row-reverse;
}

.section-02 .product-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}

.section-02 .product-info::before {
  content: '02';
  position: absolute;
  left: -100px;
  top: 20px;
  font-family: 'Lato', sans-serif;
  font-weight: 900;
  font-size: 240px;
  line-height: 1;
  color: #FFFFFF;
  opacity: 0.1;
}

.section-02 .product-image {
  flex-shrink: 0;
  width: 570px;
  height: 613px;
  overflow: hidden;
}

.section-02 .product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

/* Section 03 Styles */
.section-03 {
  padding: 0;
}

.section-03 .product-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 0 0 100px;
  align-items: stretch;
  gap: 0;
}

.section-03 .product-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}

.section-03 .product-info::before {
  content: '03';
  position: absolute;
  left: -100px;
  top: 20px;
  font-family: 'Lato', sans-serif;
  font-weight: 900;
  font-size: 240px;
  line-height: 1;
  color: #FFFFFF;
  opacity: 0.1;
}

.section-03 .product-image {
  flex-shrink: 0;
  width: 570px;
  height: 613px;
  overflow: hidden;
}

.section-03 .product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

/* Section 04 Styles */
.section-04 {
  padding: 0;
}

.section-04 .product-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0;
  align-items: stretch;
  gap: 0;
  flex-direction: row-reverse;
}

.section-04 .product-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}

.section-04 .product-info::before {
  content: '04';
  position: absolute;
  left: -100px;
  top: 20px;
  font-family: 'Lato', sans-serif;
  font-weight: 900;
  font-size: 240px;
  line-height: 1;
  color: #FFFFFF;
  opacity: 0.1;
}

.section-04 .product-image {
  flex-shrink: 0;
  width: 570px;
  height: 613px;
  overflow: hidden;
}

.section-04 .product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.section-background {
  position: absolute;
  bottom: -237px;
  left: 0;
  width: 100%;
  z-index: 1;
}

.section-background .bg-image {
  width: 100%;
  height: auto;
  object-fit: cover;
  object-position: center;
  display: block;
}

/* Product Content */
.product-content {
  position: relative;
  z-index: 2;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 60px;
}

.product-content.reverse {
  flex-direction: row-reverse;
}

.product-info {
  max-width: 632px;
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 1s ease, transform 1s ease;
}

.product-info.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.product-image {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 1s ease 0.2s, transform 1s ease 0.2s;
}

.product-image.animate-in {
  opacity: 1;
  transform: translateY(0);
}

/* Tagline */
.tagline {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 24px;
}

.tagline-line {
  width: 72px;
  height: 2px;
  background-color: #FBD784;
}

.tagline-text {
  font-family: 'Lato', sans-serif;
  font-weight: 400;
  font-size: 18px;
  color: #FBD784;
  text-transform: uppercase;
  letter-spacing: 6px;
}

.product-title {
  font-family: 'Noto Serif JP', serif;
  font-weight: 600;
  font-size: 32px;
  line-height: 1.4;
  color: #FFFFFF;
  margin-bottom: 27px;
}

.product-description {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 500;
  font-size: 16px;
  line-height: 40px;
  color: #FFFFFF;
}

.product-image {
  flex-shrink: 0;
}

.product-image img {
  max-width: 600px;
  height: auto;
}

/* Thumbnail Grid */
.thumbnail-grid {
  position: relative;
  z-index: 2;
  max-width: 1400px;
  margin: 10px auto 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
}

.thumbnail-grid-8 {
  grid-template-columns: repeat(4, 1fr);
}

.thumbnail-grid-5 {
  grid-template-columns: repeat(5, 1fr);
}

.thumbnail {
  height: 100%;
  overflow: hidden;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.thumbnail.animate-in {
  opacity: 1;
  transform: translateY(0);
}

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

/* Color Variation */
.color-variation {
  position: relative;
  z-index: 2;
  max-width: 1400px;
  margin: 0 auto;
  text-align: center;
  padding: 60px 0;
}

.variation-title {
  font-family: 'Lato', sans-serif;
  font-weight: 400;
  font-size: 22px;
  color: #FBD784;
  text-transform: uppercase;
  letter-spacing: 6px;
  margin-bottom: 24px;
}

.variation-line {
  width: 72px;
  height: 2px;
  background-color: #FBD784;
  margin: 0 auto 40px;
}

.wheel-colors {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 60px;
  padding: 0;
}

.wheel-colors-8 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.wheel-item {
  flex: 1;
  width: 400px;
  max-width: 400px;
  height: 267px;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.wheel-colors-8 .wheel-item {
  width: 100%;
  max-width: none;
  height: auto;
}

.wheel-item.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.wheel-item img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* Buttons */
.btn-outline {
  display: inline-block;
  padding: 20px 60px;
  border: 1px solid #FFFFFF;
  color: #FFFFFF;
  font-family: 'Lato', sans-serif;
  font-weight: 400;
  font-size: 22px;
  text-transform: uppercase;
  letter-spacing: 6px;
  text-decoration: none;
  transition: all 0.3s ease;
}

.btn-outline:hover {
  background-color: #FFFFFF;
  color: #0B1D26;
}


/* ===========================
   Tuning Parts Section
   =========================== */
.tuning-section {
  position: relative;
  background-color: #0B1D26;
}

.tuning-background {
  position: sticky;
  top: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

.tuning-bg-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.tuning-header {
  position: relative;
  margin-top: -100vh;
  padding-top: 330px;
  text-align: center;
  z-index: 2;
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 1s ease, transform 1s ease;
}

.tuning-header.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.tuning-title-en {
  font-family: 'Lato', sans-serif;
  font-weight: 400;
  font-size: 96px;
  color: #FFFFFF;
  text-transform: uppercase;
  letter-spacing: 6px;
  margin-bottom: 20px;
  white-space: nowrap;
}

.tuning-title-jp {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 500;
  font-size: 22px;
  color: #FFFFFF;
  line-height: 40px;
  margin-bottom: 30px;
  white-space: nowrap;
}

.tuning-line {
  width: 72px;
  height: 2px;
  background-color: #FFFFFF;
  margin: 0 auto;
}

/* ===========================
   Parts Item Section
   =========================== */
.parts-items-wrapper {
  position: relative;
  z-index: 10;
  padding-top: 200px;
}

.parts-item-section {
  background-color: transparent;
  padding: 0 229px 80px;
}

.parts-item-card {
  background-color: #FFFFFF;
  border: 3px solid #D9AB15;
  padding: 86px 100px 80px;
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 1s ease, transform 1s ease;
}

.parts-item-card.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.parts-item-title {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 700;
  font-size: 28px;
  line-height: 40px;
  color: #D9AB15;
  margin-bottom: 10px;
}

.parts-item-description {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 500;
  font-size: 16px;
  line-height: 40px;
  color: #0D0D0D;
  margin-bottom: 40px;
}

.parts-item-gallery {
  display: flex;
  gap: 25px;
  height: 437px;
  margin-bottom: 60px;
}

.parts-item-main {
  flex: 624;
  min-width: 0;
  height: 100%;
  overflow: hidden;
}

.parts-item-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.parts-item-thumbs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 25px;
  flex: 615;
  min-width: 0;
  height: 100%;
}

.parts-item-thumbs-2 {
  grid-template-columns: repeat(1, 1fr);
}

.parts-item-thumbs-3 {
  grid-template-columns: repeat(3, 1fr);
}

.parts-item-gallery-single {
  justify-content: center;
}

.parts-item-gallery-single .parts-item-main {
  flex: none;
  width: 624px;
}

.parts-item-thumbs-extra {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
  margin-bottom: 60px;
}

.parts-item-thumbs-extra .parts-thumb {
  height: 206px;
  overflow: hidden;
}

.parts-item-thumbs-extra .parts-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  cursor: pointer;
}

.parts-thumb {
  height: 206px;
  overflow: hidden;
}

.parts-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.btn-view-more {
  display: block;
  width: 100%;
  padding: 30px;
  background-color: #0D0D0D;
  color: #FFFFFF;
  font-family: 'Lato', sans-serif;
  font-weight: 400;
  font-size: 22px;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 6px;
  transition: opacity 0.3s ease;
}

.btn-view-more:hover {
  opacity: 0.8;
}

/* ===========================
   Footer
   =========================== */
.footer {
  padding: 60px 40px;
  text-align: center;
  background-color: #0B1D26;
}

.copyright {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 500;
  font-size: 22px;
  color: #FFFFFF;
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 1400px) {
  .section-01 .product-content,
  .section-02 .product-content,
  .section-03 .product-content,
  .section-04 .product-content {
    padding: 0 0 0 60px;
  }

  .section-01 .product-image,
  .section-02 .product-image,
  .section-03 .product-image,
  .section-04 .product-image {
    width: 450px;
    height: 100%;
  }

  .section-01 .product-info::before,
  .section-02 .product-info::before,
  .section-03 .product-info::before,
  .section-04 .product-info::before {
    font-size: 180px;
    left: -60px;
  }

  .wheel-colors img {
    width: 300px;
    height: 200px;
  }

  .product-image img {
    max-width: 450px;
  }

  .thumbnail-grid {
    grid-template-columns: repeat(6, 1fr);
  }

  .parts-items-wrapper {
    margin-top: -150px;
  }

  .parts-item-section {
    padding: 0 100px 80px;
  }

  .parts-item-card {
    padding: 60px 60px 60px;
  }
}

@media (max-width: 1024px) {
  .hero-content {
    padding-top: 200px;
  }

  .main-heading {
    font-size: 80px;
    line-height: 80px;
  }

  .scroll-down {
    top: calc(100vh - 100px);
  }

  .section-number {
    font-size: 150px;
    left: 40px;
  }

  .product-content {
    flex-direction: column;
  }

  .product-content.reverse {
    flex-direction: column;
  }

  .product-image img {
    max-width: 100%;
  }

  .section-01 .product-content,
  .section-02 .product-content,
  .section-03 .product-content,
  .section-04 .product-content {
    flex-direction: column;
    padding: 0;
  }

  .section-01 .product-info,
  .section-02 .product-info,
  .section-03 .product-info,
  .section-04 .product-info {
    padding: 80px 40px;
  }

  .section-01 .product-info::before,
  .section-02 .product-info::before,
  .section-03 .product-info::before,
  .section-04 .product-info::before {
    font-size: 120px;
    left: 0;
    top: 20px;
  }

  .section-01 .product-image,
  .section-02 .product-image,
  .section-03 .product-image,
  .section-04 .product-image {
    width: 100%;
    height: 100%;
  }

  .product-title {
    font-size: 26px;
  }

  .product-description {
    font-size: 14px;
    line-height: 32px;
  }

  .tagline-text {
    font-size: 14px;
    letter-spacing: 4px;
  }

  .tagline-line {
    width: 50px;
  }

  .section-background {
    bottom: auto;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150%;
  }

  .thumbnail-grid {
    grid-template-columns: repeat(2, 1fr);
    padding: 0 10px;
    gap: 10px;
  }

  .thumbnail {
    height: 150px;
  }

  .wheel-colors {
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 0 10px;
  }

  .wheel-colors-8 {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    padding: 0 10px;
  }

  .wheel-item {
    width: 100%;
    height: auto;
  }

  .wheel-item img {
    width: 100%;
    height: auto;
    object-fit: contain;
  }

  .tuning-header {
    top: 200px;
  }

  .tuning-title-en {
    font-size: 64px;
  }

  .tuning-title-jp {
    font-size: 18px;
  }

  .parts-items-wrapper {
    margin-top: -100px;
  }

  .parts-item-section {
    padding: 0 40px 60px;
  }

  .parts-item-card {
    padding: 40px 40px 40px;
  }

  .parts-item-gallery {
    height: 300px;
  }

  .parts-item-gallery-single .parts-item-main {
    width: 100%;
    max-width: 624px;
  }

  .parts-item-thumbs-extra {
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
  }

  .parts-item-thumbs-extra .parts-thumb {
    height: auto;
    aspect-ratio: 295/206;
  }

  .parts-thumb {
    height: auto;
  }
}

@media (max-width: 768px) {
  .hero-content {
    padding: 0 20px;
    padding-top: 150px;
  }

  .sub-heading .line {
    width: 40px;
  }

  .sub-heading .text {
    font-size: 14px;
    letter-spacing: 3px;
  }

  .main-heading {
    font-size: 48px;
    line-height: 56px;
    margin-bottom: 24px;
  }

  .description {
    font-size: 14px;
    line-height: 28px;
    margin-bottom: 40px;
  }

  .scroll-down {
    top: calc(100vh - 80px);
  }

  .hero-bottom-gradient {
    top: calc(100vh - 100px);
    height: 500px;
  }

  .scroll-text {
    font-size: 14px;
  }

  .section-number {
    font-size: 100px;
    left: 20px;
  }

  .product-section {
    padding: 80px 0;
  }

  .product-content {
    padding: 0 20px;
  }

  .product-title {
    font-size: 20px;
  }

  .product-description {
    font-size: 13px;
    line-height: 26px;
  }

  .tagline-text {
    font-size: 12px;
    letter-spacing: 2px;
  }

  .tagline-line {
    width: 40px;
  }

  .section-01 .product-info,
  .section-02 .product-info,
  .section-03 .product-info,
  .section-04 .product-info {
    padding: 60px 20px;
  }

  .section-01 .product-info::before,
  .section-02 .product-info::before,
  .section-03 .product-info::before,
  .section-04 .product-info::before {
    font-size: 80px;
    left: 0;
    top: 20px;
  }

  .section-01 .product-image,
  .section-02 .product-image,
  .section-03 .product-image,
  .section-04 .product-image {
    height: 100%;
  }

  .section-03 .section-background {
    bottom: auto;
    top: 22%;
    left: 50%;
    transform: translateX(-50%);
    width: 150%;
  }

  .thumbnail-grid {
    grid-template-columns: repeat(2, 1fr);
    padding: 0 10px;
    gap: 10px;
  }

  .thumbnail {
    height: 120px;
  }

  .wheel-colors-8 {
    grid-template-columns: repeat(1, 1fr);
    padding: 0 10px;
  }

  .wheel-item {
    max-width: none;
  }

  .btn-outline {
    padding: 15px 40px;
    font-size: 16px;
    letter-spacing: 3px;
  }

  .tuning-header {
    top: 120px;
  }

  .tuning-title-en {
    font-size: 42px;
    letter-spacing: 3px;
  }

  .tuning-title-jp {
    font-size: 14px;
  }

  .tuning-line {
    width: 50px;
  }

  .parts-items-wrapper {
    margin-top: -80px;
  }

  .parts-item-section {
    padding: 0 20px 40px;
  }

  .parts-item-card {
    padding: 30px 20px 30px;
  }

  .parts-item-title {
    font-size: 22px;
  }

  .parts-item-description {
    font-size: 14px;
    line-height: 28px;
    margin-bottom: 20px;
  }

  .parts-item-gallery {
    flex-direction: column;
    gap: 10px;
    height: auto;
    margin-bottom: 30px;
  }

  .parts-item-main {
    flex: none;
    width: 100%;
    aspect-ratio: 624/437;
    height: auto;
  }

  .parts-item-gallery-single .parts-item-main {
    width: 100%;
  }

  .parts-item-thumbs-extra {
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-bottom: 30px;
  }

  .parts-item-thumbs {
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    height: auto;
  }

  .parts-thumb,
  .parts-item-thumbs-extra .parts-thumb {
    height: auto;
    aspect-ratio: 295/206;
  }

  .btn-view-more {
    padding: 20px;
    font-size: 16px;
    letter-spacing: 3px;
  }
}

@media (max-width: 480px) {
  .hero-content {
    padding-top: 100px;
  }

  .main-heading {
    font-size: 36px;
    line-height: 44px;
    margin-bottom: 16px;
  }

  .description {
    font-size: 12px;
    line-height: 24px;
    margin-bottom: 30px;
  }

  .scroll-down {
    top: calc(100vh - 60px);
  }

  .hero-bottom-gradient {
    top: calc(100vh - 80px);
    height: 400px;
  }

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

  .product-description {
    font-size: 12px;
    line-height: 22px;
  }

  .tagline-text {
    font-size: 10px;
    letter-spacing: 1px;
  }

  .tagline-line {
    width: 30px;
  }

  .section-01 .product-info,
  .section-02 .product-info,
  .section-03 .product-info,
  .section-04 .product-info {
    padding: 40px 15px;
  }

  .section-01 .product-info::before,
  .section-02 .product-info::before,
  .section-03 .product-info::before,
  .section-04 .product-info::before {
    font-size: 60px;
    left: 0;
    top: 10px;
  }

  .section-01 .product-image,
  .section-02 .product-image,
  .section-03 .product-image,
  .section-04 .product-image {
    height: 100%;
  }

  .thumbnail {
    height: 100px;
  }

  .tuning-header {
    top: 80px;
  }

  .tuning-title-en {
    font-size: 22px;
    letter-spacing: 1px;
  }

  .tuning-title-jp {
    font-size: 10px;
    line-height: 20px;
  }

  .tuning-line {
    width: 40px;
  }

  .parts-items-wrapper {
    margin-top: -60px;
  }

  .parts-item-thumbs {
    grid-template-columns: repeat(2, 1fr);
  }
}