/* 全局样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "微软雅黑", sans-serif;
  background-color: #FFFFFF;
  color: #333333;
  line-height: 1.6;
}

/* 顶部banner */
.top-banner {
  width: 100%;
  height: 500px;
  background-image: url("banner.png");
  background-size: cover;
  background-position: center;
  color: #FFFFFF;
  text-align: center;
}

.banner-content {
  max-width: 1200px;
  margin: 0 auto;
}

.banner-title {
  font-size: 48px;
  font-weight: bold;
  margin-bottom: 20px;
}

.banner-subtitle {
  font-size: 24px;
  margin-bottom: 30px;
}

.banner-buttons {
  margin-bottom: 40px;
}

.banner-button {
  display: inline-block;
  background-color: #FFB900;
  color: #333333;
  font-size: 16px;
  font-weight: bold;
  padding: 12px 30px;
  border-radius: 4px;
  text-decoration: none;
  margin: 0 10px;
  transition: background-color 0.3s;
}

.banner-button:hover {
  background-color: #FFA500;
}

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

/* 导航图标 */
.nav-icons {
  width: 100%;
  max-width: 1920px;
  margin: 0 auto;
  background-color: #f0f0f0;
  padding: 20px 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

.nav-icons-container {
  width: 100%;
  max-width: 1200px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.nav-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  transition: transform 0.3s ease;
  flex: 1;
  position: relative;
}

.nav-icon:not(:last-child)::after {
  content: "";
  position: absolute;
  right: 0;
  top: 10px;
  bottom: 10px;
  width: 0.5px;
  background-color: rgba(0, 0, 0, 0.2);
  border-right: 0.5px dashed rgba(0, 0, 0, 0.1);
}

.nav-icon:hover {
  transform: translateY(-5px);
}

.nav-icon img {
  width: 50px;
  height: 50px;
  object-fit: contain;
}

.nav-icon span {
  font-size: 16px;
  color: #333333;
  font-weight: bold;
}

.nav-icon p {
  font-size: 10px;
  color: #7c7c7c;
}

.product-nav {
  padding: 30px 0;
  background-color: #FFFFFF;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.nav-header {
  text-align: center;
  margin-bottom: 10px;
  position: relative;
  width: 100%;
  max-width: 1200px;
}

.nav-title-bg {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 48px;
  font-weight: bold;
  color: rgba(0, 0, 0, 0.05);
  z-index: 0;
  width: 100%;
  text-align: center;
}

.nav-title-main {
  font-size: 36px;
  font-weight: bold;
  color: #333333;
  position: relative;
  z-index: 1;
  margin-bottom: 15px;
  display: inline-block;
}

.nav-dot {
  display: flex;
  justify-content: center;
  margin-bottom: 15px;
}

.nav-subtitle {
  font-size: 16px;
  color: #666666;
  margin-bottom: 30px;
}

.nav-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  width: 100%;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.nav-image-container {
  width: 100%;
  padding: 20px;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
  margin-bottom: 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 250px;
}

.nav-image-container img {
  max-width: 100%;
  max-height: 200px;
  object-fit: contain;
}

.nav-button {
  width: 100%;
  background: linear-gradient(90deg, #0052cc 0%, #007bff 100%);
  color: #FFFFFF;
  padding: 10px 20px;
  border-radius: 25px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: bold;
  font-size: 18px;
  transition: background-color 0.3s ease;
}

.nav-button:hover {
  background: linear-gradient(90deg, #004494 0%, #0066cc 100%);
}

.nav-arrow {
  font-size: 16px;
  font-weight: bold;
  background-color: #FF4444;
  padding: 5px 12px;
  border: 1px solid #FFFFFF;
  border-radius: 50%;
}

/* 数据统计 */
.data-stats {
  width: 100%;
  padding: 60px 0;
  background-image: url('slbj.jpg');
  color: #FFFFFF;
}

.stats-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}

.stats-item {
  padding: 20px;
}

.stats-number {
  display: block;
  font-size: 36px;
  font-weight: bold;
  margin-bottom: 10px;
}

.stats-text {
  font-size: 16px;
  color: #E0E0E0;
}

.product-showcase {
  padding: 30px 0;
  background-color: #FFFFFF;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.showcase-header {
  text-align: center;
  margin-bottom: 10px;
  position: relative;
  width: 100%;
  max-width: 1200px;
}

.showcase-title-bg {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 48px;
  font-weight: bold;
  color: rgba(0, 0, 0, 0.05);
  z-index: 0;
  width: 100%;
  text-align: center;
}

.showcase-title-main {
  font-size: 36px;
  font-weight: bold;
  color: #333333;
  position: relative;
  z-index: 1;
  margin-bottom: 15px;
  display: inline-block;
}

.showcase-dot {
  display: flex;
  justify-content: center;
  margin-bottom: 15px;
}

.showcase-subtitle {
  font-size: 16px;
  color: #666666;
  margin-bottom: 30px;
}

.showcase-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(2, 1fr);
  gap: 20px;
  width: 100%;
}

.showcase-item {
  border: 1px solid #e0e0e0;
  padding: 20px;
  border-radius: 4px;
  position: relative;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  height: 340px;
}

.showcase-badge {
  position: absolute;
  top: 30px;
  left: 20px;
  background: linear-gradient(90deg, #0052cc 0%, #007bff 100%);
  color: #FFFFFF;
  padding: 5px 15px;
  border-radius: 15px;
  display: flex;
  align-items: center;
  font-weight: bold;
  z-index: 1;
}

.badge-number {
  background-color: #ff0000;
  border: 1px solid #FFFFFF;
  color: #FFFFFF;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-right: 8px;
  font-size: 16px;
}

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

.showcase-item img {
  width: 100%;
  height: 200px;
  object-fit: contain;
  margin: 20px 0;
  box-shadow: 5px 5px 15px rgba(0, 0, 0, 0.1);
}

.showcase-description {
  padding-top: 60px;
  font-size: 14px;
  color: #333333;
  line-height: 1.5;
  align-self: flex-start;
  width: 100%;
  font-weight: bolder;
}

.showcase-description p {
  margin-bottom: 5px;
}

.application {
  padding: 30px 0;
  background-color: #FFFFFF;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.application-header {
  text-align: center;
  margin-bottom: 10px;
  position: relative;
  width: 100%;
  max-width: 1200px;
}

.application-title-bg {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 48px;
  font-weight: bold;
  color: rgba(0, 0, 0, 0.05);
  z-index: 0;
  width: 100%;
  text-align: center;
}

.application-title-main {
  font-size: 36px;
  font-weight: bold;
  color: #333333;
  position: relative;
  z-index: 1;
  margin-bottom: 15px;
  display: inline-block;
}

.application-dot {
  display: flex;
  justify-content: center;
  margin-bottom: 15px;
}

.application-subtitle {
  font-size: 16px;
  color: #666666;
  margin-bottom: 30px;
}

.application-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(2, 1fr);
  gap: 20px;
  width: 100%;
}

.application-item {
  position: relative;
  overflow: hidden;
  border: 1px solid #e0e0e0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.application-item img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.application-item:hover img {
  transform: scale(1.05);
}

.application-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: rgba(0, 0, 0, 0.5);
  color: #FFFFFF;
  padding: 15px;
  text-align: center;
}

.application-label span {
  font-size: 18px;
  font-weight: bold;
}

.why-choose {
  padding: 30px 0;
  background-color: #f9f9f9;
  position: relative;
}

.choose-header {
  text-align: center;
  margin-bottom: 10px;
  position: relative;
}

.choose-title-bg {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 48px;
  font-weight: bold;
  color: rgba(0, 0, 0, 0.05);
  z-index: 0;
  width: 100%;
  text-align: center;
}

.choose-title-main {
  font-size: 36px;
  font-weight: bold;
  color: #333333;
  position: relative;
  z-index: 1;
  margin-bottom: 15px;
}

.choose-dot {
  display: flex;
  justify-content: center;
  margin-bottom: 15px;
}

.dot-red {
  width: 10px;
  height: 10px;
  background-color: #FF4444;
  border-radius: 50%;
}

.choose-subtitle {
  font-size: 16px;
  color: #666666;
  margin-bottom: 30px;
}

.choose-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
}

.choose-left {
  flex: 1;
  min-width: 300px;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.choose-right {
  flex: 1;
  min-width: 300px;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.choose-center {
  flex: 0 0 200px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.center-circle {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  border: 2px dashed #0056B3;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 10px;
}

.center-circle img {
  max-width: 180px;
  height: auto;
  border-radius: 50%;
}

.choose-item {
  display: flex;
  align-items: center;
  position: relative;
}

.choose-card {
  background-color: #0056B3;
  color: #FFFFFF;
  padding: 20px;
  border-radius: 4px;
  flex: 1;
  position: relative;
  z-index: 1;
}

.choose-card-title {
  font-size: 18px;
  font-weight: bold;
  margin-bottom: 10px;
  position: relative;
  padding-bottom: 10px;
}

.choose-card-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background-color: #FFFFFF;
}

.choose-card-text {
  font-size: 14px;
  line-height: 1.4;
}

.choose-icon {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
}

.icon-circle {
  width: 80px;
  height: 80px;
  background-color: #FF4444;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #FFFFFF;
  font-size: 24px;
}

.choose-left .top .choose-icon {
  right: -30px;
}

.choose-left .bottom .choose-icon {
  right: -30px;
}

.choose-right .top .choose-icon {
  left: -30px;
}

.choose-right .bottom .choose-icon {
  left: -30px;
}

.choose-left .choose-card {
  margin-right: 30px;
}

.choose-right .choose-card {
  margin-left: 30px;
}

/* 工厂实力 */
.factory-strength {
  width: 100%;
  padding: 30px 0;
  background-color: #F5F5F5;
  text-align: center;
}

.strength-title {
  font-size: 36px;
  font-weight: bold;
  color: #333333;
  margin-bottom: 40px;
}

.strength-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.strength-item img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 0;
  box-shadow: 5px 5px 5px rgba(0, 0, 0, 0.3);
}

/* 定制流程 */
.custom-process {
  width: 100%;
  padding: 30px 0;
  background-color: #FFFFFF;
  text-align: center;
}

.process-header {
  margin-bottom: 10px;
}

.process-title {
  font-size: 36px;
  font-weight: bold;
  color: #333333;
  margin-bottom: 10px;
}

.process-subtitle {
  font-size: 16px;
  color: #666666;
  margin-bottom: 30px;
}

.process-steps {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
}

.process-step {
  flex: 1;
  min-width: 120px;
  margin: 0 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.step-icon {
  width: 120px;
  height: 120px;
  background-color: #F5F5F5;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 15px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  border: #c7c5c5 2px solid;
}

.step-icon img {
  width: 50px;
  height: 50px;
}

.step-text {
  font-size: 18px;
  font-weight: bold;
  color: #333333;
}

.process-arrow {
  font-size: 20px;
  color: #FFB900;
  margin: 0 10px;
}

/* 关于我们 */
.about-us {
  width: 100%;
  padding: 60px 0;
  background-image: url('aboutbj.jpg');
  color: #FFFFFF;
}

.about-header {
  text-align: center;
  margin-bottom: 40px;
  position: relative;
}

.about-title-bg {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  z-index: 0;
}

.bg-text-left {
  font-size: 48px;
  font-weight: bold;
  color: rgba(255, 255, 255, 0.15);
  margin-right: 20px;
}

.bg-text-right {
  font-size: 48px;
  font-weight: bold;
  color: rgba(255, 255, 255, 0.15);
  margin-left: 20px;
}

.about-title-main {
  font-size: 36px;
  font-weight: bold;
  color: #FFFFFF;
  position: relative;
  z-index: 1;
  margin-bottom: 15px;
}

.about-dots {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 15px;
}

.dot-white {
  width: 8px;
  height: 8px;
  background-color: #FFFFFF;
  border-radius: 50%;
  margin: 0 5px;
}

.dot-red {
  width: 10px;
  height: 10px;
  background-color: #FF4444;
  border-radius: 50%;
  margin: 0 5px;
}

.about-subtitle {
  font-size: 16px;
  color: #FFFFFF;
  margin-bottom: 20px;
}

.about-line {
  width: 100%;
  max-width: 600px;
  height: 2px;
  background-color: rgba(255, 255, 255, 0.3);
  margin: 0 auto;
  position: relative;
}

.line-white {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 4px;
  background-color: #FFFFFF;
  border-radius: 2px;
}

.about-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 50px;
}

.about-left {
  flex: 1;
  margin-right: 50px;
  text-align: left;
}

.about-title {
  font-size: 36px;
  font-weight: bold;
  margin-bottom: 30px;
}

.about-text p {
  font-size: 16px;
  line-height: 1.6;
  margin-bottom: 20px;
}

.about-button {
  display: inline-block;
  background-color: #FFB900;
  color: #333333;
  font-size: 16px;
  font-weight: bold;
  padding: 12px 30px;
  border-radius: 4px;
  text-decoration: none;
  margin-top: 20px;
  transition: background-color 0.3s;
}

.about-button:hover {
  background-color: #FFA500;
}

.about-right {
  flex: 1;
}

.about-right img {
  width: 100%;
  height: auto;
  border-radius: 8px;
}


/* 响应式设计 */
@media (max-width: 768px) {
  .nav-grid,
  .stats-grid,
  .showcase-grid,
  .application-grid,
  .strength-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .choose-content,
  .about-content {
    flex-direction: column;
  }
  
  .choose-left,
  .about-left {
    margin-right: 0;
    margin-bottom: 30px;
  }
  
  .process-steps {
    flex-direction: column;
  }
  
  .process-arrow {
    transform: rotate(90deg);
    margin: 20px 0;
  }
}