/* Hero Section */
.hero {
  background-color: var(--bg-dark);
  background-image: radial-gradient(circle at 50% 60%, #333333 0%, var(--bg-dark) 60%);
  color: var(--text-light);
  padding: 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero a {
  display: block;
}
.hero-subtitle {
  color: var(--primary-blue);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.hero-title {
  font-size: 80px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 24px;
  margin-left: auto;
  margin-right: auto;
}
.hero-title .highlight {
  background: linear-gradient(to right, #0174e3, #2fd4c8);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-desc {
  font-size: 18px;
  color: #fff;
  margin-bottom: 64px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  letter-spacing: 0.5px;
}
.hero-visual {
  width: 100%;
  max-width: 800px;
  height: 400px;
  margin: 0 auto;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
/* Hero Slider */
.hero-slider.swiper,
.hero-slider .swiper-wrapper,
.hero-slider .swiper-slide {
  height: 1070px;
  background-position: center center;
}
.hero-slide {
  height: 1070px;
  display: flex;
  align-items: center;
  align-items: flex-start;
  padding: 120px 0 100px;
  outline: none;
  background-repeat: no-repeat;
  background-position: top center;
  box-sizing: border-box;
}
.hero-slider .swiper-button-prev {
  left: 30px;
}
.hero-slider .swiper-button-next {
  right: 30px;
}
.hero-slider .swiper-button-prev,
.hero-slider .swiper-button-next {
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.3s ease;
}
.hero-slider .swiper-button-prev:hover,
.hero-slider .swiper-button-next:hover {
  color: #fff;
}
.hero-slider .swiper-pagination {
  bottom: 40px;
}
.hero-slider .swiper-pagination-bullet {
  background: rgba(255, 255, 255, 0.5);
  opacity: 1;
}
.hero-slider .swiper-pagination-bullet-active {
  background: #fff;
}
/* Core Business Section */
.core-business {
  padding: 96px 0;
}
.core-business .section-subtitle {
  font-size: 16px;
  color: var(--primary-blue);
}
.core-business .section-title {
  font-size: 40px;
  color: #000;
}
.core-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
  width: 1260px;
  margin: 0 auto;
}
.core-card {
  border-radius: 20px;
  padding: 32px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  transition: var(--transition);
  background-repeat: no-repeat;
  width: 398px;
  height: 292px;
  box-sizing: border-box;
}
.core-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}
.core-content h3 {
  font-size: 22px;
  margin-bottom: 8px;
  color: #000;
}
.core-content p {
  font-size: 15px;
  color: #333;
  line-height: 1.6;
  white-space: pre-line;
}
.core-img-placeholder {
  width: 100px;
  height: 120px;
  flex-shrink: 0;
  margin-left: 16px;
}
/* Design Capabilities Section */
.design-capabilities {
  background-color: #d3e9fd;
  color: #000;
  padding: 96px 0;
}
.design-capabilities .section-title {
  color: #000;
  margin-left: auto;
  margin-right: auto;
  font-size: 40px;
}
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  width: 1260px;
  margin: 0 auto;
}
.product-card {
  display: flex;
  flex-direction: column;
}
.product-img-wrapper {
  width: 398px;
  height: 292px;
  aspect-ratio: 4/3;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 16px;
  background-color: #2a2c31;
}
.product-card h4 {
  font-size: 22px;
  margin-bottom: 4px;
  color: #000;
}
.product-card p {
  font-size: 15px;
  color: #333;
}
/* Process Production Section */
.process-production {
  padding: 96px 0;
}
.process-production .section-subtitle {
  color: var(--primary-blue);
  font-size: 16px;
}
.process-production .section-title {
  color: #000;
  font-size: 40px;
}
.process-container {
  display: flex;
  gap: 64px;
  align-items: flex-start;
  width: 1260px;
  margin: 0 auto;
}
.process-content {
  flex: 1;
}
.process-features {
  display: flex;
  gap: 32px;
  width: 782px;
  background: var(--bg-card);
  border-radius: 16px;
  min-height: 321px;
  box-sizing: border-box;
  padding: 0 32px 0 32px;
}
.feature-item {
  padding: 32px 0px 32px 0px;
  box-sizing: border-box;
}
.feature-item:nth-child(1) {
  width: 262px;
}
.feature-item:nth-child(2) {
  width: 384px;
}
.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(0, 102, 204, 0.1);
  color: var(--primary-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.feature-item p {
  font-size: 18px;
  color: #747474;
}
.process-visual {
  border-radius: 20px;
  overflow: hidden;
  width: 443px;
}
.process-visual img {
  width: 443px;
  height: 321px;
}
/* Classic Cases Section */
.classic-cases {
  overflow: hidden;
}
.classic-cases .section-subtitle {
  color: var(--primary-blue);
  font-size: 16px;
}
.classic-cases .section-title {
  color: #000;
  font-size: 40px;
}
.cases-carousel {
  margin-top: 32px;
}
.cases-carousel .case-item {
  outline: none;
}
.cases-carousel .case-item-inner {
  border-radius: 16px;
  overflow: hidden;
  position: relative;
  background: #f5f5f5;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  width: 1316px;
  height: 758px;
}
.cases-carousel .swiper-slide {
  width: 1316px;
}
.cases-carousel .swiper-slide-active,
.cases-carousel .swiper-slide-duplicate-active {
  z-index: 2;
}
.cases-carousel .layer-mask {
  width: 100%;
  height: 100%;
  opacity: 0.7;
  transition: opacity 0.5s;
  background-color: #3e3e3e;
  position: absolute;
  left: 0;
  top: 0;
  z-index: 2;
  pointer-events: none;
}
.cases-carousel .swiper-slide-active .layer-mask,
.cases-carousel .swiper-slide-duplicate-active .layer-mask {
  opacity: 0;
}
.cases-carousel .case-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 24px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  color: white;
  font-size: 14.4px;
  text-align: left;
  z-index: 3;
}
.cases-carousel .case-caption h4 {
  font-size: 17.6px;
  margin: 0 0 4px;
}
.cases-carousel .case-caption p {
  font-size: 13.6px;
  color: #ddd;
  margin: 0;
}
.cases-carousel .swiper-button-prev {
  left: 15px;
}
.cases-carousel .swiper-button-next {
  right: 15px;
}
.cases-carousel .swiper-button-prev,
.cases-carousel .swiper-button-next {
  width: 70px;
  height: 70px;
  background: rgba(0, 0, 0, 0.5);
  border-radius: 50%;
  color: #fff;
  transition: background 0.3s ease;
}
.cases-carousel .swiper-button-prev:hover,
.cases-carousel .swiper-button-next:hover {
  background: rgba(0, 0, 0, 0.8);
}
.cases-carousel .swiper-button-prev::after,
.cases-carousel .swiper-button-next::after {
  font-size: 24px;
  font-weight: bold;
}
/* Contact Section */
.contact-section {
  padding: 96px 0;
  background-color: var(--bg-light);
}
.contact-section .section-subtitle {
  font-size: 14px;
  color: var(--primary-blue);
}
.contact-section .section-title {
  font-size: 40px;
  color: #000;
}
.contact-form {
  max-width: 700px;
  margin: 0 auto;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}
.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 24px;
}
.form-group label {
  font-size: 14.4px;
  font-weight: 600;
  margin-bottom: 8px;
}
.form-control {
  padding: 12.8px 16px;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  font-family: inherit;
  font-size: 16px;
  transition: border-color 0.3s;
}
.form-control:focus {
  outline: none;
  border-color: var(--primary-blue);
}
textarea.form-control {
  resize: vertical;
  min-height: 120px;
}
.submit-btn {
  background-color: var(--primary-blue);
  color: white;
  border: none;
  border-radius: 30px;
  padding: 16px 48px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  display: block;
  margin: 32px auto 0;
  transition: var(--transition);
}
.submit-btn:hover {
  background-color: #0052a3;
}
.form-feedback {
  text-align: center;
  margin-top: 30px;
  padding-top: 10px ;
  padding-bottom: 10px;
}
body.nav-mobile .hero-subtitle {
  font-size: 26px;
}
body.nav-mobile .hero-desc {
  font-size: 22px;
}
body.nav-mobile .core-content p {
  font-size: 18px;
}
body.nav-mobile .section-subtitle {
  font-size: 22px;
}
body.nav-mobile .product-card h4 {
  font-size: 26px;
}
body.nav-mobile .product-card p {
  font-size: 20px;
}
body.nav-mobile .feature-item p {
  font-size: 24px;
}
body.nav-mobile .cases-carousel .case-caption h4 {
  font-size: 26px;
}
body.nav-mobile .contact-section .section-subtitle {
  width: 800px;
  margin: 0 auto;
}
body.nav-mobile .contact-form {
  width: 900px;
  max-width: 900px;
}
body.nav-mobile .contact-form .form-group {
  margin-bottom: 50px;
}
body.nav-mobile .contact-form .form-row {
  grid-template-columns: auto;
}
body.nav-mobile .contact-form .form-group label {
  font-size: 36px;
}
body.nav-mobile .contact-form .form-control {
  padding: 30px;
  font-size: 36px;
}
body.nav-mobile .contact-form .form-control:focus::placeholder {
  font-size: 36px;
}
body.nav-mobile .contact-form .submit-btn {
  font-size: 36px;
}
body.nav-mobile .form-feedback {
  font-size: 40px;
  font-weight: bold;
  padding: 30px;
}