/* Banner轮播 - 全屏 */
.banner {
  width: 100%;
  height: calc(100vh - 130px);
  position: relative;
  margin-top: 130px;
}

.banner-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
}

.banner-list {
  width: 100%;
  height: 100%;
}

.banner-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.5s;
}

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

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

.banner-prev,
.banner-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  background: rgba(0,0,0,0.3);
  cursor: pointer;
  z-index: 10;
}

.banner-prev:hover,
.banner-next:hover {
  background: rgba(0,0,0,0.5);
}

.banner-prev {
  left: 30px;
}

.banner-prev::before {
  content: '';
  display: block;
  width: 15px;
  height: 15px;
  border-left: 3px solid #fff;
  border-bottom: 3px solid #fff;
  transform: rotate(45deg);
  margin: 17px 0 0 15px;
}

.banner-next {
  right: 30px;
}

.banner-next::before {
  content: '';
  display: block;
  width: 15px;
  height: 15px;
  border-right: 3px solid #fff;
  border-top: 3px solid #fff;
  transform: rotate(45deg);
  margin: 17px 0 0 18px;
}

.banner-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 10;
}

.banner-dot {
  width: 12px;
  height: 12px;
  background: rgba(255,255,255,0.5);
  border-radius: 50%;
  cursor: pointer;
  transition: background 0.3s;
}

.banner-dot.active {
  background: #fff;
}

/* 产品中心 - 全屏 */
.products {
  width: 100%;
  min-height: calc(100vh - 130px);
  background: #fff;
  display: flex;
  align-items: center;
  padding: 50px 0;
}

.products-inner {
  width: 1240px;
  margin: 0 auto;
}

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

.products-title-wrapper {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
}

.products-title {
  font-size: 40px;
  margin-bottom: 10px;
  white-space: nowrap;
}

.products-title .title-black {
  color: #000000;
}

.products-title .title-blue {
  color: #008DBB;
}

.title-line {
  width: 100%;
  height: 4px;
  background: linear-gradient(to right, #4CA3DA, #ACD8BB);
}

.products-tabs {
  display: flex;
  justify-content: center;
  gap: 120px;
  margin-bottom: 30px;
}

.tab-item {
  font-size: 20px;
  color: #000000;
  cursor: pointer;
  position: relative;
  padding-bottom: 8px;
  transition: color 0.3s;
}

.tab-item.active {
  position: relative;
  color: #008DBB;
}

.tab-item.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: #B3B3B3;
}

.tab-item.active::before {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 9px solid #B3B3B3;
}

.products-content {
  margin-top: 20px;
  position: relative;
  overflow: hidden;
  min-height: 618px;
}

.products-panel {
  display: none;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
}

.products-panel.active {
  display: block;
  position: relative;
}

.product-row {
  display: flex;
  gap: 18px;
  overflow: visible;
}

.product-left {
  width: 782px;
  height: 300px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  display: flex;
  transition: transform 0.6s ease;
  will-change: transform;
}

.product-left:hover {
  transform: scale(1.03);
  z-index: 2;
}

.product-left-text {
  width: 350px;
  margin-left: auto;
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
  align-items: center;
  padding-right: 50px;
}

.text-item {
  font-size: 20px;
  color: #666666;
}

.text-item.text-main {
  font-size: 22px;
  color: #000000;
}

.product-right {
  width: 440px;
  height: 300px;
  background: url('../images/home/1 (16).png') no-repeat center center;
  background-size: cover;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 80px 50px 40px 40px;
  overflow: hidden;
  transition: transform 0.6s ease;
  will-change: transform;
}

.product-right:hover {
  transform: scale(1.03);
  z-index: 2;
}

.product-right-title {
  font-size: 22px;
  color: #fff;
}

.product-right-desc {
  font-size: 14px;
  color: #fff;
  line-height: 1.6;
  text-align: left;
}

/* 第二行布局 */
.product-row-left {
  width: 555px;
  display: flex;
  flex-direction: column;
}

.product-small {
  width: 555px;
  height: 144px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  padding: 20px 40px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  transition: transform 0.6s ease;
  will-change: transform;
}

.product-small:hover {
  transform: scale(1.03);
  z-index: 2;
}

.product-small-title {
  font-size: 22px;
  color: #fff;
  margin-bottom: 10px;
  text-align: left;
}

.product-small-desc {
  font-size: 14px;
  color: #fff;
  line-height: 1.5;
  text-align: left;
  margin-top: 25px;
}

.product-row-right {
  width: 663px;
  height: 300px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  display: flex;
  transition: transform 0.6s ease;
  will-change: transform;
}

.product-row-right:hover {
  transform: scale(1.03);
  z-index: 2;
}

.product-row-right-text {
  width: 350px;
  margin-left: auto;
  padding: 40px 20px 40px 0;
  display: flex;
  flex-direction: column;
}

.nx-title {
  font-size: 22px;
  color: #000;
  text-align: center;
  margin-bottom: 20px;
}

.nx-section {
  margin-bottom: 15px;
}

.nx-subtitle {
  font-size: 22px;
  color: #000;
  margin-bottom: 8px;
}

.nx-desc {
  font-size: 16px;
  color: #808080;
  line-height: 1.5;
}

.product-corner-title {
  position: absolute;
  right: 15px;
  bottom: 28px;
  font-size: 20px;
  color: #fff;
  z-index: 2;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
  pointer-events: none;
}

.product-corner-title-left-300 {
  left: 300px;
  right: auto;
}

.product-corner-title-left-210 {
  left: 210px;
  right: auto;
}

/* 进口传感器布局 */
.sensor-container {
  display: flex;
  gap: 18px;
  width: 1240px;
  height: 618px;
  overflow: visible;
}

.sensor-left {
  width: 782px;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.sensor-right {
  width: 440px;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.sensor-left-top {
  width: 100%;
  height: 319px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  display: block;
  position: relative;
  transition: transform 0.6s ease;
  will-change: transform;
}

.sensor-left-top:hover {
  transform: scale(1.03);
  z-index: 2;
}

.sensor-left-bottom {
  display: flex;
  gap: 18px;
  width: 100%;
  height: 281px;
}

.sensor-left-bottom-l {
  width: 488px;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  display: block;
  position: relative;
  transition: transform 0.6s ease;
  will-change: transform;
}

.sensor-left-bottom-l:hover {
  transform: scale(1.03);
  z-index: 2;
}

.sensor-left-bottom-r {
  width: 276px;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  display: block;
  position: relative;
  transition: transform 0.6s ease;
  will-change: transform;
}

.sensor-left-bottom-r:hover {
  transform: scale(1.03);
  z-index: 2;
}

.sensor-right-top {
  width: 100%;
  height: 368px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  display: block;
  position: relative;
  transition: transform 0.6s ease;
  will-change: transform;
}

.sensor-right-top:hover {
  transform: scale(1.03);
  z-index: 2;
}

.sensor-right-bottom {
  width: 100%;
  height: 232px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  display: block;
  position: relative;
  transition: transform 0.6s ease;
  will-change: transform;
}

.sensor-right-bottom:hover {
  transform: scale(1.03);
  z-index: 2;
}

.sensor-text {
  position: absolute;
  font-size: 20px;
  color: #000;
  line-height: 1.5;
}

.sensor-text .highlight {
  color: #2F7BBD;
}

.sensor-text.white {
  color: #fff;
  font-size: 16px;
}

.sensor-left-top .sensor-text {
  left: 30px;
  bottom: 30px;
}

.sensor-left-bottom-l .sensor-text {
  left: 30px;
  bottom: 30px;
  font-size: 16px;
}

.sensor-left-bottom-r .sensor-text {
  left: 30px;
  top: 90px;
  font-size: 16px;
}

.sensor-right-top .sensor-text {
  left: 30px;
  bottom: 30px;
}

.sensor-right-bottom .sensor-text {
  left: 30px;
  bottom: 30px;
  right: 30px;
}

/* 自主研发产品布局 */
.self-dev-container {
  display: flex;
  flex-direction: column;
  gap: 18px;
  width: 1240px;
  height: 618px;
}

.self-dev-top {
  display: flex;
  gap: 18px;
  height: 420px;
  overflow: visible;
}

.self-dev-card {
  flex: 1;
  background: #EDF3F3;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  transition: transform 0.6s ease;
  will-change: transform;
}

.self-dev-card:hover {
  transform: scale(1.03);
  z-index: 2;
}

.platform-card {
  padding: 24px;
}

.platform-img {
  width: 100%;
  height: 200px;
  margin-bottom: 20px;
  border-radius: 4px;
  overflow: hidden;
}

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

.platform-title {
  font-size: 20px;
  color: #333;
  margin-bottom: 15px;
  font-weight: 500;
}

.platform-desc {
  font-size: 14px;
  color: #666;
  line-height: 1.8;
  text-align: justify;
}

.list-card {
  padding: 0;
  background: transparent;
  gap: 12px;
}

.list-title {
  background: #EDF3F3;
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #333;
  font-weight: 500;
  border-radius: 8px;
  margin: 0;
}

.list-items {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.list-item {
  background: #EDF3F3;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #333;
  border-radius: 8px;
  transition: all 0.3s;
}

.list-item:hover {
  background: #E0EBEB;
}

.self-dev-bottom {
  display: flex;
  gap: 18px;
  height: 180px;
  overflow: visible;
}

.bottom-card {
  flex: 1;
  border-radius: 8px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: #fff;
  font-weight: 500;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  transition: transform 0.6s ease;
  will-change: transform;
}

.bottom-card:hover {
  transform: scale(1.03);
  z-index: 2;
}

/* 行业案例 - 全屏 */
.cases {
  width: 100%;
  min-height: calc(100vh - 130px);
  background: #fff;
  display: flex;
  align-items: center;
  padding: 50px 0;
}

.cases-inner {
  width: 1240px;
  margin: 0 auto;
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title .title-wrapper {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 15px;
}

.section-title h2 {
  font-size: 40px;
  white-space: nowrap;
  margin-bottom: 10px;
}

.section-title h2 .title-black {
  color: #000000;
}

.section-title h2 .title-blue {
  color: #008DBB;
}

.section-title .title-line {
  width: 100%;
  height: 4px;
  background: linear-gradient(to right, #4CA3DA, #ACD8BB);
}

.section-title p {
  font-size: 16px;
  color: #888;
}

.cases-list {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.case-card {
  width: calc((1240px - 36px) / 3);
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  transition: transform 0.6s ease;
  will-change: transform;
}

.case-card img {
  width: 100%;
  height: auto;
  display: block;
}

.case-card:hover {
  transform: scale(1.03);
  z-index: 2;
}

.case-card .case-title {
  position: absolute;
  right: 15px;
  bottom: 15px;
  font-size: 20px;
  color: #fff;
}

.cases-desc {
  text-align: center;
  font-size: 16px;
  color: #4D4D4D;
  margin-top: 30px;
  line-height: 1.6;
}

.more-btn {
  text-align: center;
  margin-top: 40px;
}

.more-btn a {
  display: inline-block;
  padding: 12px 40px;
  background: #003366;
  color: #fff;
  font-size: 14px;
  transition: background 0.3s;
}

.more-btn a:hover {
  background: #002244;
}

/* 关于我们 - 全屏 */
.about {
  width: 100%;
  min-height: calc(100vh - 130px);
  background: #f5f5f5;
  display: flex;
  align-items: center;
  padding: 50px 0;
}

.about-inner {
  width: 1240px;
  margin: 0 auto;
  display: flex;
  gap: 60px;
  align-items: center;
}

.about-left {
  width: 480px;
}

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

.about-right {
  flex: 1;
}

.section-title.left {
  text-align: left;
  margin-bottom: 30px;
}

.section-title.left .title-wrapper {
  align-items: flex-start;
}

.about-desc {
  margin-bottom: 80px;
}

.about-desc p {
  font-size: 15px;
  color: #666;
  line-height: 2;
}

.about-nums {
  display: flex;
  justify-content: space-between;
  margin-bottom: 40px;
}

.num-item {
  text-align: center;
  flex: 1;
}

.num-value {
  display: inline;
}

.num {
  font-size: 40px;
  font-weight: bold;
  color: #008DBB;
}

.num-unit {
  font-size: 16px;
  color: #000;
}

.num-text {
  font-size: 16px;
  color: #000;
  margin-top: 8px;
}

.about-btns {
  display: flex;
}

.about-btns a {
  display: block;
  margin: 0 30px;
}

.about-btns img {
  height: 40px;
  width: auto;
}

.about-btn a {
  display: inline-block;
  padding: 14px 45px;
  background: #003366;
  color: #fff;
  font-size: 14px;
  transition: background 0.3s;
}

.about-btn a:hover {
  background: #002244;
}