/* ===== Reset & Base ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: #333;
  background: #fff;
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.3s;
}

ul, ol {
  list-style: none;
}

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

.container {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 40px;
  width: 100%;
}
.container2 {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
  width: 100%;
}

.page-wrapper {
  max-width: 1920px;
  margin: 0 auto;
  overflow: hidden;
}

/* ===== Scroll Animations ===== */
.fade-in {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(60px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.scale-in {
  opacity: 0;
  transform: scale(0.85);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }

/* ===== Header / Navigation ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  transition: background 0.3s, box-shadow 0.3s;
  max-width: 1920px;
  margin: 0 auto;
}

.site-header .header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 40px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 20px;
  color: #0052d9;
}

.logo img {
  height: 60px;
  width: auto;
}

.logo-icon {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 18px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-text .cn {
  font-size: 18px;
  font-weight: 700;
  color: #0052d9;
}

.logo-text .en {
  font-size: 11px;
  color: #999;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.main-nav a {
  font-size: 17px;
  color: #333;
  position: relative;
  padding: 4px 10px;
  transition: color 0.3s;
}

.main-nav a:hover,
.main-nav a.active {
  color: #0052d9;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: #0052d9;
  transition: width 0.3s;
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

.header-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #0052d9;
  color: #fff;
  padding: 8px 20px;
  border-radius: 25px;
  font-size: 15px;
  font-weight: 600;
  transition: background 0.3s;
}

.header-phone:hover {
  background: #003eb3;
}

.header-phone svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
  background: none;
  border: none;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: #333;
  transition: all 0.3s;
}

/* ===== Hero Carousel ===== */
.hero-carousel {
  margin-top: 70px;
  position: relative;
  width: 100%;
  max-width: 1920px;
  margin-left: auto;
  margin-right: auto;
  background: #0a0e1a;
  overflow: hidden;
}

.carousel-wrapper {
  position: relative;
  width: 100%;
  height: 560px;
}

.carousel-slides {
  position: relative;
  width: 100%;
  height: 100%;
}

.carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.8s ease-in-out;
  z-index: 1;
}

.carousel-slide.active {
  opacity: 1;
  z-index: 2;
}

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Carousel Arrows */
.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 50px;
  height: 50px;
  border: none;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(4px);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
}

.carousel-arrow:hover {
  background: rgba(255,255,255,0.3);
}

.carousel-arrow svg {
  width: 28px;
  height: 28px;
  fill: #fff;
}

.carousel-prev {
  left: 30px;
}

.carousel-next {
  right: 30px;
}

/* Carousel Dots */
.carousel-dots {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 12px;
}

.carousel-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: all 0.3s;
}

.carousel-dot:hover {
  background: rgba(255,255,255,0.7);
}

.carousel-dot.active {
  background: #0052d9;
  width: 32px;
  border-radius: 6px;
}

/* ===== Section Common ===== */
.section-title {
  text-align: center;
  margin-bottom: 45px;
  position: relative;
}

.section-title .en-title {
  font-size: 48px;
  font-weight: 800;
  color: rgba(0,82,217,0.06);
  text-transform: uppercase;
  letter-spacing: 4px;
  line-height: 1;
  margin-bottom: -20px;
  position: relative;
}

.section-title h2 {
  font-size: 28px;
  font-weight: 700;
  color: #222;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.section-title h2::before {
  content: '';
  width: 4px;
  height: 24px;
  background: #0052d9;
  border-radius: 2px;
}

.section-title.light h2 {
  color: #fff;
}

.section-title.light .en-title {
  color: rgba(255,255,255,0.06);
}

.section-title.light h2::before {
  background: #fff;
}

/* ===== Products Section ===== */
.products-section {
  padding: 70px 0 60px;
  background: #fff;
}

/* Products Header - Title Left + Tabs Right */
.products-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 20px;
}

.products-title-left {
  position: relative;
}

.products-watermark {
  position: absolute;
  left: 50px;
  top: -8px;
  font-size: 56px;
  font-weight: 900;
  color: rgba(0,0,0,0.04);
  text-transform: uppercase;
  letter-spacing: 4px;
  pointer-events: none;
  line-height: 1;
}

.products-title-main {
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
  z-index: 1;
}

.products-title-main .gear-icon {
  width: 28px;
  height: 28px;
}

.products-title-main h2 {
  font-size: 28px;
  font-weight: 700;
  color: #0052d9;
  letter-spacing: 2px;
}

/* Product Tabs - Pill Style */
.products-tabs {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.product-tab {
  padding: 10px 28px;
  font-size: 14px;
  color: #0052d9;
  cursor: pointer;
  border: 1px solid #0052d9;
  background: #fff;
  border-radius: 30px;
  transition: all 0.3s;
  white-space: nowrap;
}

.product-tab:hover {
  background: rgba(0,82,217,0.08);
}

.product-tab.active {
  background: #0052d9;
  color: #fff;
  border-color: #0052d9;
}

/* Products Grid */
.products-grid {
  display: none;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.products-grid.active {
  display: grid;
}

.product-card {
  background: #f5f7fa;
  border-radius: 0;
  overflow: hidden;
  transition: all 0.4s;
  cursor: pointer;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0,82,217,0.1);
}

.product-card .product-img {
  padding: 30px 20px;
  background: #f5f7fa;
  height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.product-card .product-img img {
  max-width: 100%;
  max-height: 200px;
  object-fit: contain;
  transition: transform 0.4s;
}

.product-card:hover .product-img img {
  transform: scale(1.03);
}

.product-card .product-name {
  text-align: left;
  padding: 16px 20px;
  font-size: 14px;
  color: #333;
  background: #fff;
}

/* ===== Features Section ===== */
.features-section {
  padding: 70px 0;
  background: linear-gradient(135deg, #0a1628 0%, #0d2b5e 50%, #0052d9 100%);
  position: relative;
  overflow: hidden;
}

.features-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('../images/feature-bg.jpg') center/cover no-repeat;
  opacity: 0.15;
}

.features-inner {
  position: relative;
  z-index: 2;
}

.features-header {
  text-align: center;
  margin-bottom: 50px;
}

.features-header h2 {
  font-size: 30px;
  color: #fff;
  font-weight: 700;
  margin-bottom: 8px;
}

.features-header p {
  font-size: 16px;
  color: rgba(255,255,255,0.7);
}

.features-layout {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 30px;
  align-items: center;
}

.feature-list-left,
.feature-list-right {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.feature-item {
  display: flex;
  gap: 15px;
  align-items: flex-start;
  padding: 20px;
  background: rgba(255,255,255,0.06);
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.08);
  backdrop-filter: blur(5px);
  transition: all 0.4s;
}

.feature-item:hover {
  background: rgba(255,255,255,0.12);
  transform: translateY(-4px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: 10px;
  background: rgba(0,82,217,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  fill: #4da6ff;
}

.feature-item h4 {
  font-size: 16px;
  color: #fff;
  margin-bottom: 6px;
  font-weight: 600;
}

.feature-item p {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
}

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

.features-center .center-logo {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: rgba(0,82,217,0.3);
  border: 2px solid rgba(0,82,217,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  position: relative;
}

.features-center .center-logo::before {
  content: '';
  position: absolute;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  border: 1px solid rgba(0,82,217,0.2);
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(1.3); opacity: 0; }
}

.features-center .center-logo span {
  color: #fff;
  font-weight: 700;
  font-size: 16px;
}

/* ===== Applications Section ===== */
.applications-section {
  padding: 70px 0;
  background: #f5f7fa;
}

.app-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 16px;
}

.app-card {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  min-height: 220px;
}

.app-card:first-child {
  grid-row: 1 / 3;
}

.app-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s;
}

.app-card:hover img {
  transform: scale(1.08);
}

.app-card .app-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(transparent 30%, rgba(0,0,0,0.65));
  display: flex;
  align-items: flex-end;
  padding: 20px;
  transition: background 0.4s;
}

.app-card:hover .app-overlay {
  background: linear-gradient(transparent 10%, rgba(0,82,217,0.7));
}

.app-card .app-name {
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

/* ===== About Section ===== */
.about-section {
  position: relative;
  overflow: hidden;
  background: #f0f2f5;
  padding: 70px 0 80px;
  max-width: 1920px;
  margin: 0 auto;
}

.about-en-watermark {
  position: absolute;
  right: 60px;
  top: 24px;
  font-size: 130px;
  font-weight: 900;
  color: rgba(0,0,0,0.04);
  text-transform: uppercase;
  letter-spacing: 10px;
  pointer-events: none;
  z-index: 3;
  line-height: 1;
}

.about-layout {
  display: flex;
  align-items: flex-start;
  min-height: 440px;
  width: 100%;
  max-width: 1920px;
  margin: 0 auto;
  padding: 0;
  position: relative;
}

/* Left dark panel - raised higher */
.about-left {
  position: relative;
  width: 54%;
  flex-shrink: 0;
  overflow: hidden;
  margin-top: -24px;
  z-index: 2;
  box-shadow: 12px 16px 48px rgba(0,0,0,0.3);
}

.about-left-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}

.about-left-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-left-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(8, 18, 50, 0.84);
  z-index: 1;
}

.about-left-content {
  position: relative;
  z-index: 2;
  padding: 70px 80px 70px 100px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 420px;
}

.about-label {
  font-size: 16px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 14px;
  letter-spacing: 2px;
}

.about-title {
  font-size: 34px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 28px;
  letter-spacing: 2px;
}

.about-desc {
  font-size: 15px;
  color: rgba(255,255,255,0.55);
  line-height: 2.1;
  margin-bottom: 36px;
  max-width: 580px;
}

.about-more-btn {
  display: inline-block;
  padding: 12px 36px;
  background: #0052d9;
  color: #fff;
  border-radius: 4px;
  font-size: 14px;
  letter-spacing: 1px;
  transition: all 0.3s;
  align-self: flex-start;
}

.about-more-btn:hover {
  background: #003eb3;
  color: #fff;
}

/* Right factory image - sits lower for layered look */
.about-right {
  flex: 1;
  position: relative;
  overflow: hidden;
  margin-top: 50px;
  margin-left: -30px;
  z-index: 1;
  box-shadow: -4px 12px 40px rgba(0,0,0,0.15);
  min-height: 380px;
}

.about-right img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s;
  min-height: 380px;
}

.about-right:hover img {
  transform: scale(1.03);
}

/* ===== Partners Section ===== */
.partners-section {
  padding: 60px 0 50px;
  background: #f7f9fc;
  position: relative;
  overflow: hidden;
}

.partners-bg-wrap {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  max-width: 1600px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.6;
}

.partners-bg-img {
  width: 100%;
  height: auto;
}

.partners-container {
  position: relative;
  z-index: 1;
}

.partners-header {
  text-align: center;
  margin-bottom: 10px;
}

.partners-en-title {
  font-size: 50px;
  font-weight: 800;
  color: rgba(0,82,217,0.05);
  text-transform: uppercase;
  letter-spacing: 8px;
  line-height: 1;
  margin-bottom: -20px;
}

.partners-heading {
  font-size: 26px;
  font-weight: 700;
  color: #222;
  display: inline-block;
  position: relative;
  letter-spacing: 2px;
}

/* Radial layout wrapper */
.partners-radial {
  position: relative;
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px 0 10px;
}

/* Center logo circle */
.partners-center-logo {
  position: relative;
  width: 120px;
  height: 120px;
  margin: 0 auto 0;
  z-index: 5;
}

.center-circle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: linear-gradient(145deg, #0052d9, #0040b0);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 30px rgba(0,82,217,0.3);
  z-index: 3;
}

.center-circle-icon {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  line-height: 1;
}

.center-circle-text {
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.2;
}

.center-circle-text .cn {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
}

.center-circle-text .en {
  font-size: 9px;
  color: rgba(255,255,255,0.7);
  letter-spacing: 2px;
}

.center-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 50%;
  border: 1px dashed rgba(0,82,217,0.2);
}

.ring-inner {
  width: 160px;
  height: 160px;
  transform: translate(-50%, -50%);
}

.ring-outer {
  width: 260px;
  height: 260px;
  transform: translate(-50%, -50%);
  border-color: rgba(0,82,217,0.12);
}

.center-dot {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #0052d9;
  z-index: 4;
}

.dot-1 {
  top: -30px;
  left: 30%;
}

.dot-2 {
  bottom: -40px;
  left: 20%;
}

.dot-3 {
  top: -60px;
  right: -80px;
}

/* Partner rows */
.partner-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: -30px;
  position: relative;
  z-index: 2;
}

.partner-row-1 {
  margin-top: -100px;
  padding: 0 40px;
}

.partner-row-2 {
  margin-top: -10px;
  padding: 0 20px;
}

.partner-row-3 {
  margin-top: 16px;
  padding: 0 30px;
}

.partner-row-4 {
  margin-top: 16px;
  padding: 0 80px;
}

/* Individual partner logo item */
.partner-logo-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  min-width: 180px;
  min-height: 90px;
  transition: all 0.4s;
  cursor: pointer;
}

.partner-logo-item:hover {
  transform: scale(1.06);
}

/* Partner logo image - 2:1 aspect ratio */
.partner-logo-img {
  width: 200px;
  height: 100px;
  object-fit: contain;
  filter: grayscale(20%);
  transition: all 0.4s;
}

.partner-logo-item:hover .partner-logo-img {
  filter: grayscale(0%);
  transform: scale(1.02);
}

/* ===== Service Section ===== */
.service-section {
  position: relative;
  padding: 100px 0 80px;
  background: #0c1a3a url('../images/service-bg.jpg') center/cover no-repeat;
  overflow: hidden;
}

.service-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(8, 18, 45, 0.65);
  z-index: 1;
}

.service-wave-top {
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  z-index: 2;
  line-height: 0;
}

.service-wave-top svg {
  width: 100%;
  height: 80px;
  display: block;
}

.service-container {
  position: relative;
  z-index: 3;
}

.service-title-wrap {
  text-align: center;
  margin-bottom: 50px;
  position: relative;
}

.service-en-title {
  font-size: 56px;
  font-weight: 800;
  color: rgba(255,255,255,0.05);
  text-transform: uppercase;
  letter-spacing: 8px;
  line-height: 1;
  margin-bottom: -24px;
  position: relative;
}

.service-heading {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  position: relative;
  display: inline-block;
  letter-spacing: 2px;
}

.service-heading::after {
  content: '';
  display: block;
  width: 40px;
  height: 3px;
  background: #0052d9;
  margin: 12px auto 0;
  border-radius: 2px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card {
  text-align: center;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-radius: 8px;
  padding: 50px 24px 30px;
  transition: all 0.4s;
  border: 1px solid rgba(255,255,255,0.3);
  position: relative;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.25);
  background: rgba(255,255,255,0.97);
}

/* Hexagonal icon */
.service-hex-icon {
  position: absolute;
  top: -30px;
  left: 50%;
  transform: translateX(-50%);
  width: 64px;
  height: 72px;
}

.service-hex-icon .hex-shape {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 4px 8px rgba(0,82,217,0.15));
}

.service-hex-icon .hex-icon-inner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 30px;
  height: 30px;
}

.service-hex-icon .hex-icon-inner svg {
  width: 100%;
  height: 100%;
}

.service-card h4 {
  font-size: 18px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 12px;
  margin-top: 10px;
}

.service-card p {
  font-size: 13px;
  color: #777;
  line-height: 1.8;
  margin-bottom: 20px;
  min-height: 48px;
}

.service-card .service-link {
  display: inline-block;
  padding: 7px 28px;
  border: 1px solid #0052d9;
  color: #0052d9;
  border-radius: 3px;
  font-size: 13px;
  transition: all 0.3s;
  letter-spacing: 1px;
}

.service-card:hover .service-link {
  background: #0052d9;
  color: #fff;
}

/* ===== CTA Section ===== */
.cta-section {
  padding: 70px 0;
  background: url('../images/cta-bg.jpg') center/cover no-repeat;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(8, 18, 50, 0.6);
}

.cta-content {
  position: relative;
  z-index: 2;
}

.cta-content h2 {
  font-size: 32px;
  color: #fff;
  font-weight: 700;
  margin-bottom: 12px;
}

.cta-content p {
  font-size: 15px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 28px;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 36px;
  border: 2px solid #fff;
  color: #fff;
  border-radius: 4px;
  font-size: 15px;
  font-weight: 600;
  transition: all 0.3s;
}

.cta-btn:hover {
  background: #fff;
  color: #0052d9;
}

/* ===== Page Banner (About page etc.) ===== */
.page-banner {
  margin-top: 70px;
  position: relative;
  width: 100%;
  max-width: 1920px;
  margin-left: auto;
  margin-right: auto;
  min-height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.page-banner-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}

.page-banner-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(8, 18, 50, 0.75), rgba(0, 82, 217, 0.55));
  z-index: 1;
}

.page-banner-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 40px 20px;
}

.page-banner-content h1 {
  font-size: 42px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 4px;
}

.page-banner-content p {
  font-size: 18px;
  color: rgba(255,255,255,0.8);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.8;
}

/* Banner text scroll-in animations */
@keyframes bannerTitleSlideIn {
  0% {
    opacity: 0;
    transform: translateY(-50px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes bannerDescSlideIn {
  0% {
    opacity: 0;
    transform: translateY(40px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.banner-title-animate {
  animation: bannerTitleSlideIn 1s ease-out forwards;
}

.banner-desc-animate {
  opacity: 0;
  animation: bannerDescSlideIn 1s ease-out 0.4s forwards;
}

/* ===== Company Intro Section ===== */
.company-intro-section {
  padding: 80px 0 60px;
  background: #fff;
  max-width: 1920px;
  margin: 0 auto;
}

.company-intro-layout {
  display: flex;
  gap: 80px;
  align-items: flex-start;
}

.company-intro-left {
  flex: 1;
  position: relative;
}

.intro-watermark {
  font-size: 64px;
  font-weight: 900;
  color: rgba(0,0,0,0.04);
  text-transform: uppercase;
  letter-spacing: 6px;
  line-height: 1;
  margin-bottom: -24px;
  position: relative;
}

.intro-title {
  font-size: 32px;
  font-weight: 700;
  color: #222;
  margin-bottom: 30px;
  position: relative;
}

.intro-content {
  border-left: 3px solid #0052d9;
  padding-left: 24px;
}

.intro-text-cn {
  font-size: 15px;
  color: #333;
  line-height: 2;
  margin-bottom: 24px;
}

.intro-text-en {
  font-size: 14px;
  color: #777;
  line-height: 1.9;
}

.company-intro-right {
  width: 45%;
  flex-shrink: 0;
}

.company-intro-right img {
  width: 100%;
  height: auto;
  border-radius: 4px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
}

/* ===== Facility Section - Infinite Scroll ===== */
.facility-section {
  padding: 0 0 80px;
  background: #fff;
  overflow: hidden;
  width: 100%;
  max-width: 1600px;
  margin: 0 auto;
}

.facility-scroll-wrapper {
  width: 100%;
  overflow: hidden;
}

.facility-scroll-track {
  display: flex;
  gap: 0;
  animation: facilityScroll 30s linear infinite;
  width: fit-content;
}

.facility-scroll-track:hover {
  animation-play-state: paused;
}

@keyframes facilityScroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

.facility-item {
  flex: 0 0 auto;
  width: 380px;
  position: relative;
  overflow: hidden;
}

.facility-item img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s;
}

.facility-item:hover img {
  transform: scale(1.08);
}

.facility-name {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  text-align: center;
  padding: 14px;
  background: rgba(0,0,0,0.5);
  color: #fff;
  font-size: 14px;
  letter-spacing: 2px;
}

/* ===== Products List Page ===== */
.products-list-section {
  padding: 50px 0 80px;
  background: #f5f7fa;
  max-width: 1920px;
  margin: 0 auto;
}

/* Filter Tabs */
.products-filter-tabs {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-tab {
  padding: 10px 32px;
  font-size: 14px;
  color: #555;
  cursor: pointer;
  border: 1px solid #ddd;
  background: #fff;
  border-radius: 30px;
  transition: all 0.3s;
  white-space: nowrap;
}

.filter-tab:hover {
  border-color: #0052d9;
  color: #0052d9;
}

.filter-tab.active {
  background: #0052d9;
  color: #fff;
  border-color: #0052d9;
}

/* Products List Grid */
.products-list-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

/* Product List Card */
.product-list-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #f0f2f5;
  padding: 30px 40px;
  min-height: 200px;
  transition: all 0.3s;
}

.product-list-card:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

.product-list-info {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  min-height: 140px;
}

.product-list-name {
  font-size: 18px;
  font-weight: 600;
  color: #0052d9;
  line-height: 1.4;
  margin-bottom: 20px;
}

.product-list-link {
  font-size: 14px;
  color: #0052d9;
  text-decoration: none;
  transition: all 0.3s;
}

.product-list-link:hover {
  text-decoration: underline;
}

.product-list-img {
  flex-shrink: 0;
  max-width: 45%;
}

.product-list-img img {
  max-width: 100%;
  max-height: 160px;
  object-fit: contain;
}

/* Pagination */
.products-pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 50px;
}

.page-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid #ddd;
  background: #fff;
  color: #555;
  font-size: 14px;
  text-decoration: none;
  transition: all 0.3s;
}

.page-btn:hover {
  border-color: #0052d9;
  color: #0052d9;
}

.page-btn.active {
  background: #0052d9;
  color: #fff;
  border-color: #0052d9;
}

.page-prev,
.page-next {
  font-size: 16px;
}

/* ===== Contact Page ===== */
.contact-section {
  margin-top: 70px;
  max-width: 1920px;
  margin-left: auto;
  margin-right: auto;
}

.contact-layout {
  display: flex;
  min-height: 600px;
}

.contact-map {
  flex: 0 0 45%;
  background: #7eb8c9;
  overflow: hidden;
}

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

.contact-info-panel {
  flex: 1;
  background: #0a1628;
  padding: 50px 60px;
  position: relative;
  overflow: hidden;
}

.contact-info-watermark {
  position: absolute;
  right: 60px;
  top: 30px;
  font-size: 56px;
  font-weight: 900;
  color: rgba(255,255,255,0.06);
  text-transform: uppercase;
  letter-spacing: 6px;
  pointer-events: none;
  line-height: 1;
}

.contact-info-title {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 30px;
  letter-spacing: 3px;
}

.contact-info-content {
  display: flex;
  justify-content: space-between;
  margin-bottom: 36px;
}

.contact-details {
  flex: 1;
}

.contact-detail-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
  color: rgba(255,255,255,0.85);
  font-size: 14px;
  line-height: 1.6;
}

.contact-detail-item svg {
  width: 20px;
  height: 20px;
  fill: rgba(255,255,255,0.6);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-qrcode {
  flex-shrink: 0;
  text-align: center;
  margin-left: 30px;
}

.contact-qrcode img {
  width: 100px;
  height: 100px;
  border-radius: 4px;
  margin-bottom: 8px;
}

.contact-qrcode span {
  display: block;
  font-size: 12px;
  color: rgba(255,255,255,0.6);
}

/* Contact Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 16px;
  background: #fff;
  border: none;
  font-size: 14px;
  color: #333;
  outline: none;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: #999;
}

.contact-form textarea {
  resize: vertical;
  min-height: 80px;
}

.submit-btn {
  padding: 14px 24px;
  background: #d4a44a;
  color: #fff;
  border: none;
  font-size: 15px;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all 0.3s;
}

.submit-btn:hover {
  background: #c49540;
}

/* ===== Service Page ===== */
.service-page-header {
  margin-top: 70px;
  background: #0a1628;
  padding: 30px 0;
  max-width: 1920px;
  margin-left: auto;
  margin-right: auto;
}

.service-header-layout {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.service-header-title {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.service-header-title h1 {
  font-size: 28px;
  font-weight: 700;
  color: #0052d9;
  letter-spacing: 2px;
}

.service-watermark {
  font-size: 28px;
  font-weight: 700;
  color: rgba(255,255,255,0.15);
  text-transform: uppercase;
  letter-spacing: 3px;
}

.service-header-tabs {
  display: flex;
  gap: 16px;
}

.service-tab {
  padding: 10px 36px;
  font-size: 14px;
  border-radius: 30px;
  text-decoration: none;
  transition: all 0.3s;
}

.service-tab:first-child {
  background: transparent;
  border: 1px solid #0052d9;
  color: #0052d9;
}

.service-tab:first-child:hover,
.service-tab:first-child.active {
  background: #0052d9;
  color: #fff;
}

.service-tab:last-child {
  background: #0a1628;
  border: 1px solid rgba(255,255,255,0.3);
  color: rgba(255,255,255,0.8);
}

.service-tab:last-child:hover,
.service-tab:last-child.active {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.5);
  color: #fff;
}

/* Filter Section */
.service-filter-section {
  background: #fff;
  border-bottom: 1px solid #e8e8e8;
  padding: 16px 0;
}

.service-filters {
  display: flex;
  gap: 60px;
}

.filter-dropdown {
  position: relative;
}

.filter-dropdown-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: none;
  font-size: 14px;
  color: #333;
  cursor: pointer;
  padding: 8px 0;
}

.filter-dropdown-btn svg {
  width: 20px;
  height: 20px;
  fill: #666;
  transition: transform 0.3s;
}

.filter-dropdown.open .filter-dropdown-btn svg {
  transform: rotate(180deg);
}

.filter-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 140px;
  background: #fff;
  border: 1px solid #e8e8e8;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  z-index: 100;
  display: none;
}

.filter-dropdown.open .filter-dropdown-menu {
  display: block;
}

.filter-dropdown-menu a {
  display: block;
  padding: 10px 16px;
  font-size: 14px;
  color: #333;
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: all 0.2s;
}

.filter-dropdown-menu a:hover {
  background: #f5f7fa;
  border-left-color: #0052d9;
  color: #0052d9;
}

/* Search and Content */
.service-content-section {
  background: #fff;
  padding: 30px 0 80px;
  min-height: 400px;
}

.service-search-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
}

.service-search-box {
  display: flex;
  align-items: center;
  border: 1px solid #ddd;
  max-width: 400px;
  flex: 1;
}

.service-search-box input {
  flex: 1;
  padding: 10px 16px;
  border: none;
  font-size: 14px;
  color: #333;
  outline: none;
}

.service-search-box input::placeholder {
  color: #999;
}

.search-btn {
  background: none;
  border: none;
  padding: 10px 16px;
  cursor: pointer;
}

.search-btn svg {
  width: 20px;
  height: 20px;
  fill: #999;
}

.service-result-count {
  font-size: 14px;
  color: #999;
}

.service-result-count span {
  color: #0052d9;
  margin: 0 4px;
}

/* Empty State */
.service-empty-state {
  padding: 60px 20px;
  text-align: left;
}

.service-empty-state p {
  font-size: 14px;
  color: #0052d9;
}

/* File List (for future use) */
.service-file-list {
  min-height: 200px;
}

.file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: #f5f7fa;
  margin-bottom: 12px;
  transition: all 0.3s;
}

.file-item:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.file-info {
  display: flex;
  align-items: center;
  gap: 16px;
}

.file-icon {
  width: 40px;
  height: 40px;
  background: #0052d9;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.file-icon svg {
  width: 24px;
  height: 24px;
  fill: #fff;
}

.file-name {
  font-size: 14px;
  color: #333;
  font-weight: 500;
}

.file-meta {
  font-size: 12px;
  color: #999;
  margin-top: 4px;
}

.file-download {
  padding: 8px 20px;
  background: #0052d9;
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.3s;
}

.file-download:hover {
  background: #003eb3;
}

/* ===== Product Detail Page ===== */
.product-detail-section {
  margin-top: 70px;
  padding: 40px 0 60px;
  background: #fff;
  max-width: 1920px;
  margin-left: auto;
  margin-right: auto;
}

/* Product Header */
.product-detail-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid #eee;
}

.product-detail-main {
  display: flex;
  align-items: center;
  gap: 24px;
}

.product-thumb-wrapper {
  width: 120px;
  height: 120px;
  border: 1px solid #eee;
  padding: 8px;
  cursor: pointer;
  transition: all 0.3s;
}

.product-thumb-wrapper:hover {
  border-color: #0052d9;
  box-shadow: 0 4px 12px rgba(0,82,217,0.15);
}

.product-thumb {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.product-detail-title {
  font-size: 22px;
  font-weight: 600;
  color: #0052d9;
}

.product-qrcode {
  text-align: center;
}

.product-qrcode img {
  width: 80px;
  height: 80px;
  margin-bottom: 8px;
}

.product-qrcode span {
  display: block;
  font-size: 12px;
  color: #0052d9;
}

/* Product Layout */
.product-detail-layout {
  display: flex;
  gap: 40px;
}

.product-detail-content {
  flex: 1;
}

.product-detail-sidebar {
  width: 220px;
  flex-shrink: 0;
}

/* Product Spec Banner */
.product-spec-banner {
  position: relative;
  height: 300px;
  margin-bottom: 40px;
  overflow: hidden;
}

.product-spec-banner > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.spec-banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,20,50,0.7);
}

.spec-banner-content {
  position: absolute;
  top: 40px;
  left: 40px;
  z-index: 2;
}

.spec-banner-content h2 {
  font-size: 36px;
  color: #0052d9;
  font-weight: 700;
  margin-bottom: 10px;
}

.spec-banner-content p {
  font-size: 16px;
  color: rgba(255,255,255,0.7);
}

.spec-banner-icons {
  position: absolute;
  bottom: 20px;
  left: 40px;
  right: 40px;
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  z-index: 2;
}

.spec-icon-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.spec-icon-img {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.spec-icon-img svg {
  width: 22px;
  height: 22px;
  fill: #fff;
}

.spec-icon-item span {
  font-size: 11px;
  color: rgba(255,255,255,0.7);
  white-space: nowrap;
}

/* Product Feature Block */
.product-feature-block {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-bottom: 40px;
  padding: 30px;
  background: #f8f9fb;
}

.product-feature-block.reverse {
  flex-direction: row-reverse;
}

.feature-image {
  flex: 0 0 45%;
}

.feature-image img {
  width: 100%;
  height: auto;
}

.feature-text h3 {
  font-size: 20px;
  font-weight: 600;
  color: #222;
  margin-bottom: 16px;
  line-height: 1.5;
}

.feature-text p {
  font-size: 14px;
  color: #666;
  line-height: 1.8;
}

/* Spec Table */
.spec-table-title {
  text-align: center;
  margin-bottom: 30px;
}

.spec-table-title h2 {
  font-size: 24px;
  font-weight: 600;
  color: #222;
}

.spec-table-wrapper {
  margin-bottom: 40px;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 20px;
}

.spec-table th.spec-header {
  background: #0052d9;
  color: #fff;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 500;
  text-align: left;
}

.spec-table td {
  padding: 10px 16px;
  font-size: 13px;
  border: 1px solid #e8e8e8;
  vertical-align: top;
}

.spec-table td.spec-label {
  background: #f5f7fa;
  color: #333;
  width: 12%;
  font-weight: 500;
}

.spec-table td.spec-value {
  color: #666;
  width: 38%;
}

/* Product Share */
.product-share {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-top: 30px;
  border-top: 1px solid #eee;
  justify-content: center;
}

.product-share span {
  font-size: 14px;
  color: #666;
}

.share-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #999;
  transition: all 0.3s;
}

.share-icon svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.share-icon:hover {
  color: #0052d9;
}

/* Sidebar */
.sidebar-section {
  background: #f8f9fb;
  padding: 20px;
}

.sidebar-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 20px;
  font-size: 14px;
  color: #999;
}

.sidebar-title .line {
  width: 30px;
  height: 1px;
  background: #ddd;
}

.related-products {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.related-product-item {
  display: block;
  text-decoration: none;
  background: #fff;
  padding: 12px;
  transition: all 0.3s;
}

.related-product-item:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.related-product-item img {
  width: 100%;
  height: 100px;
  object-fit: contain;
  margin-bottom: 8px;
}

.related-product-item span {
  display: block;
  font-size: 12px;
  color: #0052d9;
  text-align: center;
}

/* Image Lightbox */
.image-lightbox {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.9);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
}

.image-lightbox.active {
  display: flex;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.1);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
}

.lightbox-close:hover {
  background: rgba(255,255,255,0.2);
}

.lightbox-close svg {
  width: 24px;
  height: 24px;
  fill: #fff;
}

.image-lightbox img {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
}

/* ===== Footer ===== */
.site-footer {
  background: #0a1628;
  color: rgba(255,255,255,0.6);
  padding: 50px 0 0;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 15px;
}

.footer-brand .footer-logo .logo-icon {
  
}
.footer-brand .footer-logo .logo-icon img{
  height:60px;
}

.footer-brand .footer-logo .logo-text .cn {
  color: #fff;
}

.footer-col h5 {
  font-size: 15px;
  color: #fff;
  font-weight: 600;
  margin-bottom: 18px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  transition: color 0.3s;
}

.footer-col ul li a:hover {
  color: #4da6ff;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}

.footer-contact-item img {
	height:100px;
}

.footer-contact-item svg {
  width: 16px;
  height: 16px;
  min-width: 16px;
  fill: #4da6ff;
  margin-top: 3px;
}

.footer-qr {
  width: 90px;
  height: 90px;
  background: #fff;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 12px;
  font-size: 11px;
  color: #333;
}

.footer-bottom {
  text-align: center;
  padding: 18px 0;
  font-size: 12px;
  color: rgba(255,255,255,0.3);
}

/* ===== Back to Top ===== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  background: #0052d9;
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s;
  z-index: 999;
  box-shadow: 0 4px 16px rgba(0,82,217,0.3);
}

.back-to-top.show {
  opacity: 1;
  transform: translateY(0);
}

.back-to-top:hover {
  background: #003eb3;
}

.back-to-top svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .container {
    padding: 0 24px;
  }

  .site-header .header-inner {
    padding: 0 24px;
  }

  .carousel-wrapper {
    height: 480px;
  }

  .carousel-arrow {
    width: 44px;
    height: 44px;
  }

  .carousel-prev {
    left: 20px;
  }

  .carousel-next {
    right: 20px;
  }

  .products-header {
    flex-direction: column;
    gap: 24px;
  }

  .products-tabs {
    gap: 12px;
  }

  .product-tab {
    padding: 8px 20px;
    font-size: 13px;
  }

  .products-grid.active {
    grid-template-columns: repeat(2, 1fr);
  }

  .features-layout {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .features-center {
    order: -1;
  }

  .feature-list-left,
  .feature-list-right {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .feature-item {
    flex: 1 1 calc(50% - 15px);
  }

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

  .app-card:first-child {
    grid-row: auto;
    grid-column: 1 / -1;
  }

  .about-section {
    padding: 50px 0 60px;
  }

  .about-left {
    width: 54%;
    margin-top: -16px;
  }

  .about-left-content {
    padding: 40px 40px 40px 40px;
    min-height: 340px;
  }

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

  .about-desc {
    font-size: 14px;
  }

  .about-right {
    margin-top: 36px;
    margin-left: -20px;
    min-height: 300px;
  }

  .about-right img {
    min-height: 300px;
  }

  .about-en-watermark {
    font-size: 80px;
    right: 20px;
  }

  /* About page responsive */
  .page-banner {
    min-height: 280px;
  }

  .page-banner-content h1 {
    font-size: 32px;
  }

  .page-banner-content p {
    font-size: 15px;
  }

  .company-intro-layout {
    gap: 40px;
  }

  .intro-watermark {
    font-size: 48px;
  }

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

  .company-intro-right {
    width: 40%;
  }

  .facility-item {
    width: 320px;
  }

  .facility-item img {
    height: 220px;
  }

  /* Products list page 1024px */
  .products-filter-tabs {
    gap: 12px;
  }

  .filter-tab {
    padding: 8px 24px;
    font-size: 13px;
  }

  .product-list-card {
    padding: 24px 30px;
    min-height: 180px;
  }

  .product-list-name {
    font-size: 16px;
  }

  /* Contact page 1024px */
  .contact-layout {
    min-height: 550px;
  }

  .contact-map {
    flex: 0 0 40%;
  }

  .contact-info-panel {
    padding: 40px 50px;
  }

  .contact-info-watermark {
    font-size: 44px;
    right: 40px;
    top: 24px;
  }

  .contact-info-title {
    font-size: 28px;
  }

  .contact-qrcode img {
    width: 80px;
    height: 80px;
  }

  /* Service page 1024px */
  .service-header-title h1 {
    font-size: 24px;
  }

  .service-watermark {
    font-size: 24px;
  }

  .service-tab {
    padding: 8px 28px;
    font-size: 13px;
  }

  .service-filters {
    gap: 40px;
  }

  /* Product detail 1024px */
  .product-detail-layout {
    gap: 30px;
  }

  .product-detail-sidebar {
    width: 180px;
  }

  .product-spec-banner {
    height: 260px;
  }

  .spec-banner-content h2 {
    font-size: 28px;
  }

  .spec-banner-icons {
    gap: 16px;
  }

  .spec-icon-img {
    width: 36px;
    height: 36px;
  }

  .product-feature-block {
    gap: 30px;
    padding: 24px;
  }

  .feature-text h3 {
    font-size: 18px;
  }

  .service-section {
    padding: 80px 0 60px;
  }

  .service-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 24px;
  }

  .service-en-title {
    font-size: 40px;
  }

  .footer-main {
    grid-template-columns: repeat(2, 1fr);
  }

  .partners-radial {
    max-width: 880px;
  }

  .partner-row-1 {
    padding: 0 20px;
  }

  .partner-row-4 {
    padding: 0 40px;
  }

  .partner-logo-item {
    min-width: 100px;
    padding: 8px 10px;
  }

  .partner-logo-img {
    width: 160px;
    height: 80px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 20px;
    gap: 15px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
  }

  .main-nav.open {
    display: flex;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .header-phone {
    display: none;
  }

  .carousel-wrapper {
    height: 380px;
  }

  .carousel-arrow {
    width: 40px;
    height: 40px;
  }

  .carousel-arrow svg {
    width: 24px;
    height: 24px;
  }

  .carousel-prev {
    left: 12px;
  }

  .carousel-next {
    right: 12px;
  }

  .carousel-dots {
    bottom: 16px;
    gap: 10px;
  }

  .carousel-dot {
    width: 10px;
    height: 10px;
  }

  .carousel-dot.active {
    width: 26px;
  }

  .hero-features {
    gap: 15px;
  }

  .hero-feature-item {
    font-size: 12px;
  }

  .section-title .en-title {
    font-size: 32px;
  }

  .section-title h2 {
    font-size: 22px;
  }

  /* About page 768px */
  .page-banner {
    min-height: 220px;
  }

  .page-banner-content h1 {
    font-size: 26px;
    letter-spacing: 2px;
  }

  .page-banner-content p {
    font-size: 14px;
  }

  .company-intro-section {
    padding: 50px 0 40px;
  }

  .company-intro-layout {
    flex-direction: column;
    gap: 30px;
  }

  .intro-watermark {
    font-size: 36px;
    margin-bottom: -16px;
  }

  .intro-title {
    font-size: 24px;
    margin-bottom: 20px;
  }

  .company-intro-right {
    width: 100%;
  }

  .facility-section {
    padding: 0 0 50px;
  }

  .facility-item {
    width: 280px;
  }

  .facility-item img {
    height: 180px;
  }

  .facility-scroll-track {
    animation-duration: 25s;
  }

  .products-watermark {
    font-size: 36px;
    left: 40px;
  }

  .products-title-main h2 {
    font-size: 22px;
  }

  .products-tabs {
    justify-content: flex-start;
    gap: 8px;
  }

  .product-tab {
    padding: 6px 14px;
    font-size: 12px;
  }

  .products-grid.active {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

  .product-card .product-img {
    height: 160px;
    padding: 16px;
  }

  /* Product detail 768px */
  .product-detail-section {
    padding: 30px 0 50px;
  }

  .product-detail-header {
    flex-direction: column;
    gap: 20px;
  }

  .product-thumb-wrapper {
    width: 100px;
    height: 100px;
  }

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

  .product-qrcode {
    align-self: flex-start;
  }

  .product-detail-layout {
    flex-direction: column;
  }

  .product-detail-sidebar {
    width: 100%;
    order: -1;
  }

  .related-products {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .related-product-item {
    flex: 1;
    min-width: 140px;
  }

  .product-spec-banner {
    height: 220px;
  }

  .spec-banner-content {
    top: 20px;
    left: 20px;
  }

  .spec-banner-content h2 {
    font-size: 22px;
  }

  .spec-banner-content p {
    font-size: 14px;
  }

  .spec-banner-icons {
    left: 20px;
    right: 20px;
    bottom: 16px;
    gap: 12px;
  }

  .spec-icon-img {
    width: 32px;
    height: 32px;
  }

  .spec-icon-img svg {
    width: 18px;
    height: 18px;
  }

  .spec-icon-item span {
    font-size: 10px;
  }

  .product-feature-block {
    flex-direction: column;
    gap: 20px;
    padding: 20px;
  }

  .product-feature-block.reverse {
    flex-direction: column;
  }

  .feature-image {
    flex: none;
    width: 100%;
  }

  .feature-text h3 {
    font-size: 16px;
  }

  .feature-text p {
    font-size: 13px;
  }

  .spec-table-title h2 {
    font-size: 20px;
  }

  .spec-table {
    display: block;
    overflow-x: auto;
  }

  .spec-table td {
    padding: 8px 12px;
    font-size: 12px;
  }

  .spec-table td.spec-label {
    width: 20%;
  }

  .spec-table td.spec-value {
    width: 30%;
  }

  /* Products list page 768px */
  .products-list-section {
    padding: 40px 0 60px;
  }

  .products-filter-tabs {
    gap: 10px;
    margin-bottom: 30px;
  }

  .filter-tab {
    padding: 6px 16px;
    font-size: 12px;
  }

  .products-list-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .product-list-card {
    padding: 20px 24px;
    min-height: 140px;
  }

  .product-list-info {
    min-height: 100px;
  }

  .product-list-name {
    font-size: 15px;
    margin-bottom: 16px;
  }

  .product-list-img img {
    max-height: 120px;
  }

  .products-pagination {
    margin-top: 36px;
  }

  .page-btn {
    width: 32px;
    height: 32px;
    font-size: 13px;
  }

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

  /* Service page 768px */
  .service-page-header {
    padding: 24px 0;
  }

  .service-header-layout {
    flex-direction: column;
    gap: 20px;
    align-items: flex-start;
  }

  .service-header-title h1 {
    font-size: 22px;
  }

  .service-watermark {
    font-size: 22px;
  }

  .service-header-tabs {
    gap: 12px;
  }

  .service-tab {
    padding: 8px 24px;
    font-size: 12px;
  }

  .service-filters {
    gap: 24px;
    flex-wrap: wrap;
  }

  .filter-dropdown-btn {
    font-size: 13px;
  }

  .service-search-row {
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
  }

  .service-search-box {
    max-width: 100%;
    width: 100%;
  }

  /* Contact page 768px */
  .contact-layout {
    flex-direction: column;
    min-height: auto;
  }

  .contact-map {
    flex: none;
    height: 300px;
  }

  .contact-info-panel {
    padding: 36px 24px;
  }

  .contact-info-watermark {
    font-size: 32px;
    right: 20px;
    top: 16px;
  }

  .contact-info-title {
    font-size: 24px;
    margin-bottom: 24px;
  }

  .contact-info-content {
    flex-direction: column;
    gap: 24px;
    margin-bottom: 28px;
  }

  .contact-qrcode {
    margin-left: 0;
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .contact-qrcode img {
    width: 70px;
    height: 70px;
  }

  .contact-detail-item {
    font-size: 13px;
    margin-bottom: 12px;
  }

  .contact-form {
    gap: 12px;
  }

  .contact-form input,
  .contact-form textarea {
    padding: 10px 14px;
    font-size: 13px;
  }

  .submit-btn {
    padding: 12px 20px;
    font-size: 14px;
  }

  .service-section {
    padding: 70px 0 50px;
  }

  .service-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px 16px;
  }

  .service-en-title {
    font-size: 32px;
    margin-bottom: -16px;
  }

  .service-heading {
    font-size: 22px;
  }

  .service-wave-top svg {
    height: 50px;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .partners-center-logo {
    width: 90px;
    height: 90px;
  }

  .center-circle {
    width: 76px;
    height: 76px;
  }

  .center-circle-icon {
    font-size: 18px;
  }

  .center-circle-text .cn {
    font-size: 13px;
  }

  .ring-inner {
    width: 120px;
    height: 120px;
  }

  .ring-outer {
    width: 190px;
    height: 190px;
  }

  .partner-row {
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
  }

  .partner-row-1 {
    margin-top: -70px;
    padding: 0;
  }

  .partner-row-2,
  .partner-row-3 {
    padding: 0;
    margin-top: 8px;
  }

  .partner-row-4 {
    padding: 0;
    margin-top: 8px;
  }

  .partner-logo-item {
    min-width: 80px;
    min-height: 50px;
    padding: 6px 8px;
  }

  .partner-logo-img {
    width: 120px;
    height: 60px;
  }

  .partners-en-title {
    font-size: 34px;
  }

  .partners-heading {
    font-size: 22px;
  }

  .features-header h2 {
    font-size: 24px;
  }

  .feature-item {
    flex: 1 1 100%;
  }

  .about-section {
    padding: 40px 0 40px;
  }

  .about-layout {
    flex-direction: column;
    padding: 0 16px;
  }

  .about-left {
    width: 100%;
    margin-top: 0;
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
  }

  .about-left-content {
    padding: 32px 24px;
    min-height: auto;
  }

  .about-title {
    font-size: 24px;
  }

  .about-desc {
    font-size: 13px;
    line-height: 1.8;
  }

  .about-right {
    margin-top: 0;
    margin-left: 0;
    min-height: 240px;
  }

  .about-right img {
    min-height: 240px;
  }

  .about-en-watermark {
    font-size: 50px;
    right: 10px;
    top: 10px;
  }

  .cta-content h2 {
    font-size: 24px;
  }
}

@media (max-width: 480px) {
  .carousel-wrapper {
    height: 280px;
  }

  .carousel-arrow {
    width: 36px;
    height: 36px;
  }

  .carousel-arrow svg {
    width: 20px;
    height: 20px;
  }

  .carousel-prev {
    left: 8px;
  }

  .carousel-next {
    right: 8px;
  }

  .carousel-dots {
    bottom: 12px;
    gap: 8px;
  }

  .carousel-dot {
    width: 8px;
    height: 8px;
  }

  .carousel-dot.active {
    width: 20px;
  }

  /* About page 480px */
  .page-banner {
    min-height: 180px;
  }

  .page-banner-content h1 {
    font-size: 20px;
    letter-spacing: 1px;
  }

  .page-banner-content p {
    font-size: 12px;
  }

  .company-intro-section {
    padding: 36px 0 30px;
  }

  .intro-watermark {
    font-size: 28px;
    margin-bottom: -12px;
  }

  .intro-title {
    font-size: 20px;
    margin-bottom: 16px;
  }

  .intro-content {
    padding-left: 16px;
  }

  .intro-text-cn {
    font-size: 13px;
  }

  .intro-text-en {
    font-size: 12px;
  }

  .facility-section {
    padding: 0 0 36px;
  }

  .facility-item {
    width: 240px;
  }

  .facility-item img {
    height: 160px;
  }

  .facility-scroll-track {
    animation-duration: 20s;
  }

  /* Products list page 480px */
  .products-list-section {
    padding: 30px 0 50px;
  }

  .products-filter-tabs {
    gap: 6px;
    margin-bottom: 24px;
  }

  .filter-tab {
    padding: 5px 12px;
    font-size: 11px;
  }

  .product-list-card {
    flex-direction: column;
    padding: 20px;
    gap: 16px;
  }

  .product-list-info {
    min-height: auto;
    order: 1;
    width: 100%;
  }

  .product-list-img {
    max-width: 100%;
    order: 2;
    text-align: center;
  }

  .product-list-name {
    font-size: 14px;
    margin-bottom: 12px;
  }

  .product-list-img img {
    max-height: 100px;
  }

  .products-pagination {
    margin-top: 30px;
    gap: 6px;
  }

  .page-btn {
    width: 28px;
    height: 28px;
    font-size: 12px;
  }

  .products-watermark {
    font-size: 28px;
    left: 30px;
  }

  .products-title-main .gear-icon {
    width: 22px;
    height: 22px;
  }

  .products-title-main h2 {
    font-size: 18px;
  }

  .products-tabs {
    gap: 6px;
  }

  .product-tab {
    padding: 5px 12px;
    font-size: 11px;
  }

  .products-grid.active {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .product-card .product-img {
    height: 120px;
    padding: 12px;
  }

  .product-card .product-name {
    font-size: 12px;
    padding: 10px;
  }

  /* Product detail 480px */
  .product-detail-section {
    padding: 20px 0 40px;
  }

  .product-detail-main {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .product-thumb-wrapper {
    width: 80px;
    height: 80px;
  }

  .product-detail-title {
    font-size: 16px;
  }

  .product-qrcode img {
    width: 60px;
    height: 60px;
  }

  .product-qrcode span {
    font-size: 10px;
  }

  .related-product-item {
    min-width: 100px;
  }

  .related-product-item img {
    height: 70px;
  }

  .product-spec-banner {
    height: 180px;
    margin-bottom: 30px;
  }

  .spec-banner-content h2 {
    font-size: 18px;
  }

  .spec-banner-content p {
    font-size: 12px;
  }

  .spec-banner-icons {
    gap: 8px;
    bottom: 12px;
    left: 12px;
    right: 12px;
  }

  .spec-icon-img {
    width: 28px;
    height: 28px;
  }

  .spec-icon-img svg {
    width: 14px;
    height: 14px;
  }

  .spec-icon-item span {
    font-size: 9px;
  }

  .product-feature-block {
    padding: 16px;
    margin-bottom: 24px;
  }

  .feature-text h3 {
    font-size: 15px;
    margin-bottom: 12px;
  }

  .feature-text p {
    font-size: 12px;
  }

  .spec-table-title {
    margin-bottom: 20px;
  }

  .spec-table-title h2 {
    font-size: 18px;
  }

  .spec-table td {
    padding: 6px 10px;
    font-size: 11px;
  }

  .product-share {
    gap: 12px;
    padding-top: 24px;
  }

  .product-share span {
    font-size: 12px;
  }

  .share-icon {
    width: 28px;
    height: 28px;
  }

  .share-icon svg {
    width: 16px;
    height: 16px;
  }

  /* Service page 480px */
  .service-page-header {
    padding: 20px 0;
  }

  .service-header-title h1 {
    font-size: 18px;
  }

  .service-watermark {
    font-size: 18px;
  }

  .service-header-tabs {
    width: 100%;
    gap: 8px;
  }

  .service-tab {
    flex: 1;
    text-align: center;
    padding: 6px 12px;
    font-size: 11px;
  }

  .service-filters {
    gap: 16px;
  }

  .filter-dropdown-btn {
    font-size: 12px;
  }

  .service-content-section {
    padding: 20px 0 50px;
  }

  .service-empty-state {
    padding: 40px 16px;
  }

  .service-empty-state p {
    font-size: 13px;
  }

  /* Contact page 480px */
  .contact-map {
    height: 220px;
  }

  .contact-info-panel {
    padding: 28px 16px;
  }

  .contact-info-watermark {
    font-size: 24px;
    right: 12px;
    top: 12px;
  }

  .contact-info-title {
    font-size: 20px;
    margin-bottom: 20px;
  }

  .contact-detail-item {
    font-size: 12px;
    margin-bottom: 10px;
    gap: 8px;
  }

  .contact-detail-item svg {
    width: 16px;
    height: 16px;
  }

  .contact-qrcode img {
    width: 60px;
    height: 60px;
  }

  .contact-qrcode span {
    font-size: 11px;
  }

  .contact-form input,
  .contact-form textarea {
    padding: 10px 12px;
    font-size: 12px;
  }

  .submit-btn {
    padding: 10px 16px;
    font-size: 13px;
  }

  .partners-center-logo {
    width: 70px;
    height: 70px;
  }

  .center-circle {
    width: 60px;
    height: 60px;
  }

  .center-circle-icon {
    font-size: 15px;
  }

  .center-circle-text .cn {
    font-size: 11px;
  }

  .center-circle-text .en {
    font-size: 7px;
  }

  .ring-inner {
    width: 90px;
    height: 90px;
  }

  .ring-outer {
    width: 140px;
    height: 140px;
  }

  .center-dot {
    display: none;
  }

  .partner-row-1 {
    margin-top: -50px;
  }

  .partner-logo-item {
    min-width: 70px;
    min-height: 44px;
    padding: 4px 6px;
  }

  .partner-logo-img {
    width: 90px;
    height: 45px;
  }

  .partners-en-title {
    font-size: 26px;
    margin-bottom: -14px;
  }

  .about-section {
    padding: 24px 0 24px;
  }

  .about-layout {
    padding: 0 10px;
  }

  .about-left-content {
    padding: 24px 16px;
  }

  .about-title {
    font-size: 20px;
    margin-bottom: 16px;
  }

  .about-desc {
    font-size: 12px;
    margin-bottom: 20px;
  }

  .about-en-watermark {
    font-size: 36px;
    right: 8px;
  }

  .about-right {
    min-height: 180px;
  }

  .about-right img {
    min-height: 180px;
  }

  .service-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .service-card {
    padding: 46px 20px 24px;
  }

  .service-en-title {
    font-size: 26px;
    margin-bottom: -12px;
  }

  .cta-content h2 {
    font-size: 20px;
  }
}