/* 重置样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
h1, h2, h3, h4, h5, h6 {
  font-family: "思源黑体", "SimHei", sans-serif;
  font-weight: 600;
  letter-spacing: 2px;
}

/* 顶部横幅 */
.banner-section {
  width: 100%;
  height: 502px;
}

/* 产品中心 */
.product-center {
  padding: 60px 0;
  background-color: white;
}

/* 顶部标题 */
.product-center-header {
  text-align: center;
  margin-bottom: 60px;
}

.product-center-header h2 {
  font-size: 45px;
  color: #333;
  margin-bottom: 20px;
  letter-spacing: 2px;
  font-weight: bold;
}

.product-center-header .english-title {
  color: #003366;
  font-size: 36px;
  margin-right: 10px;
  font-weight: bold;
}

.product-center-header .english-title .first-letter {
  color: #ff6600;
  font-weight: bold;
}

.product-center-header .title-decoration {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.product-center-header .title-decoration .line {
  width: 100px;
  height: 1px;
  background-color: #ddd;
}

.product-center-header .title-decoration .dot {
  color: #03056d;
  font-size: 18px;
}

/* 功能标签 */
.function-labels {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 60px;
}

.function-labels .label-item {
  display: flex; 
  align-items: center; 
  width: 100%;
  box-sizing: border-box;
  background-color: #f9f9f9;
}

.function-labels .label-item:hover {
  transform: translateY(-5px);
}

.function-labels .label-item .left-section {
  flex: 0 0 auto; 
  padding: 10px; 
  margin-right: 5px; 
  width: auto; 
  height: 100%; 
  display: flex;
  align-items: center; 
  justify-content: center;
}

.function-labels .label-item .left-section img {
  max-width: 100%;
  max-height: 100%;
  display: block; 
}

.function-labels .label-item .right-section {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.function-labels .label-item .h3-container {
  position: relative;
  display: inline-block;
}

.function-labels .label-item .orange-circle-bg {
  position: absolute;
  top: 30%;
  left: -8px;
  width: 15px;
  height: 15px;
  background-color: #FF6600;
  border-radius: 50%;
  transform: translateY(-50%);
  z-index: 0;
}

.function-labels .label-item h3 {
  font-size: 24px;
  color: #333;
  margin-bottom: 5px;
  letter-spacing: 1px;
  position: relative;
  z-index: 1;
  padding-left: 10px;
}

.function-labels .label-item p {
  font-size: 12px;
  color: #666;
  margin-bottom: 8px;
  line-height: 1.5;
  letter-spacing: 0.5px;
}

.function-labels .label-item .more-btn {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  color: #333;
  font-size: 14px;
  gap: 5px;
  transition: all 0.3s ease;
  position: relative;
}

.function-labels .label-item .more-btn::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 3px;
  background-color: #FF6600;
  transition: all 0.3s ease;
}

.function-labels .label-item .more-btn:hover {
  color: #FF6600;
}

.function-labels .label-item .more-btn:hover::after {
  width: 100%;
}

.function-labels .label-item .more-btn span {
  font-size: 16px;
}

.middle-featured-section {
  display: flex;
  gap: 40px;
  margin-top: 40px;
  margin-bottom: 40px;
  position: relative;
}

.middle-featured-section .left-section {
  flex: 1;
  display: flex;
  align-items: center;
  position: relative;
}

.middle-featured-section .blue-decoration {
  position: absolute;
  top: -20px;
  left: -20px;
  width: 200px;
  height: 200px;
  background-color: #003366;
  z-index: 1;
}

.middle-featured-section .screw-photo {
  width: 100%;
  max-width: 488px;
  position: relative;
  z-index: 2;
  border: 1px solid #EEEEEE;
  padding: 10px;
  background-color: white;
}

.middle-featured-section .screw-photo img {
  width: 100%;
  height: auto;
  border: none;
  padding: 0;
}

.middle-featured-section .floating-circles {
  position: absolute;
  right: -1px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 40px;
  z-index: 3;
}

.middle-featured-section .floating-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: bold;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.middle-featured-section .floating-circle.blue-circle {
  background-color: #003366;
  color: white;
}

.middle-featured-section .floating-circle.orange-circle {
  background-color: #FF6600;
  color: white;
}

.middle-featured-section .right-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 30px;
  padding-left: 20px;
}

.middle-featured-section .top1-label {
  text-align: right;
  margin-bottom: 20px;
}

.middle-featured-section .top1-label h3 {
  font-size: 45px;
  color: #003366;
  margin-bottom: 5px;
  letter-spacing: 10px;
  font-weight: bold;
}

.middle-featured-section .top1-label .line {
  color: #FF6600;
  margin-bottom: 5px;
  font-size: 12px;
  padding-right: 20px;
}

.middle-featured-section .top1-label p {
  font-size: 24px;
  color: #003366;
  letter-spacing: 3.5px;
  margin: 0;
}

.middle-featured-section .blue-banner {
  background-color: #003366;
  color: white;
  padding: 12px 50px;
  border-radius: 0;
  text-align: right;
  margin: 20px 0;
  align-self: flex-end;
  clip-path: polygon(15% 0, 100% 0, 100% 100%, 0 100%);
}

.middle-featured-section .blue-banner h4 {
  font-size: 16px;
  margin: 0;
  letter-spacing: 1px;
  font-weight: normal;
  word-spacing: 8px;
}

.middle-featured-section .service-icons {
  display: flex;
  gap: 30px;
  justify-content: space-between;
  margin-top: 20px;
  position: relative;
}

.middle-featured-section .service-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  position: relative;
  flex: 1;
}

.middle-featured-section .service-item::after {
  content: '';
  position: absolute;
  top: 24px;
  right: -15px;
  width: 30px;
  height: 1px;
  background: repeating-linear-gradient(to right, #CCCCCC 0px, #CCCCCC 2px, transparent 2px, transparent 4px);
}

.middle-featured-section .service-item:last-child::after {
  display: none;
}

.middle-featured-section .service-item .icon-container {
  width: 56px;
  height: 56px;
  border: 1px solid #EEEEEE;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
  background-color: white;
}

.middle-featured-section .service-item img {
  width: 32px;
  height: 32px;
  margin-bottom: 0;
}

.middle-featured-section .service-item span {
  font-size: 14px;
  color: #333333;
  text-align: center;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .middle-featured-section {
    flex-direction: column;
    gap: 30px;
  }
  
  .middle-featured-section .left-section,
  .middle-featured-section .right-section {
    width: 100%;
  }
  
  .middle-featured-section .floating-circles {
    position: relative;
    left: 0;
    top: 0;
    transform: none;
    flex-direction: row;
    justify-content: center;
    margin: 20px 0;
  }
  
  .middle-featured-section .service-icons {
    flex-direction: column;
    gap: 30px;
  }
}

/* 产品分类 */
.product-categories {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.product-categories .category-item {
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
}

.product-categories .category-item .left-section {
  width: 100%;
  display: flex;
  margin-bottom: 20px;
}

.product-categories .category-item .left-section img {
  width: 370px;
  max-width: 370px;
  height: 230px;
  object-fit: contain;
  border: 1px solid #EEEEEE;
  transition: all 0.3s ease;
}

.product-categories .category-item .right-section {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: left;
  gap: 10px;
}
.product-categories .category-item .right-section h3 {
  font-size: 16px;
  color: #333333;
  letter-spacing: 0.5px;
  margin: 0;
  font-weight: bold;
  font-family: sans-serif;
  position: relative;
  padding-bottom: 8px;
    border-bottom: 1px solid #EEEEEE;
}

.product-categories .category-item .right-section h3::before {
  content: '//';
  color: #FF6600;
  margin-right: 8px;
  font-weight: normal;
}

.product-categories .category-item .plus-button {
  position: absolute;
  bottom: 15px;
  right: 15px;
  width: 32px;
  height: 32px;
  border: 1px solid #CCCCCC;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #666666;
  cursor: pointer;
  transition: all 0.3s ease;
  background-color: white;
}

.product-categories .category-item:hover .plus-button {
  background-color: #003366;
  color: white;
  border-color: #003366;
  transform: scale(1.1);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .product-categories {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  
  .product-categories .category-item {
    padding: 20px;
  }
  
  .product-categories .category-item .left-section img {
    max-width: 150px;
    height: 100px;
  }
}

/* 响应式设计 */
@media (max-width: 768px) {
  .function-labels {
    grid-template-columns: 1fr;
  }
  
  .featured-product {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .featured-product .product-info {
    padding-left: 0;
    margin-top: 30px;
  }
  
  .product-categories {
    grid-template-columns: 1fr;
  }
}

/* 核心优势 */
.core-advantages {
  background-color: #003366;
  padding: 60px 0;
  color: white;
}

.advantages-content {
  width: 1200px;
  max-width: 100%;
  margin: 0 auto;
  padding: 0 20px;
}

/* 顶部标题 */
.about-header-container {
  text-align: left;
  margin-bottom: 20px;
  position: relative;
}

.about-main-title {
  font-size: 36px;
  font-weight: bold;
  color: #ff6600;
  margin-bottom: 15px;
  letter-spacing: 2px;
  line-height: 1.2;
}

.about-content-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 15px;
}

.about-title {
  font-size: 24px;
  color: white;
  font-weight: normal;
  letter-spacing: 1px;
  flex: 1;
}

.title-decoration {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.title-decoration .line {
  width: 100px;
  height: 1px;
  background-color: white;
}

.title-decoration .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1px solid white;
  background-color: transparent;
}

.about-description {
  font-size: 16px;
  color: white;
  opacity: 0.8;
  letter-spacing: 5px;
  margin: 0;
  line-height: 1.4;
}

/* 优势标签 */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 40px;
  margin-bottom: 60px;
}

.advantages-grid .advantage-item {
  background-color: rgba(255, 255, 255, 0.1);
  padding: 30px;
  border-radius: 8px;
  text-align: center;
  transition: transform 0.3s ease;
}

.advantages-grid .advantage-item:hover {
  transform: translateY(-5px);
}

.advantages-grid .advantage-icon {
  width: 80px;
  height: 80px;
  background-color: white;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.advantages-grid .advantage-icon img {
  width: 40px;
  height: auto;
}

.advantages-grid .advantage-item h3 {
  font-size: 20px;
  color: white;
  margin-bottom: 15px;
  letter-spacing: 1px;
}

.advantages-grid .advantage-item p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.4;
  letter-spacing: 0.5px;
}

/* 底部导航点 */
.navigation-dots {
  display: flex;
  align-items: center;
  justify-content: center;
}

.navigation-dots .dot-line {
  display: flex;
  align-items: center;
  gap: 30px;
}

.navigation-dots .dot-number {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background-color: white;
  color: #003366;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: bold;
  letter-spacing: 1px;
}

.navigation-dots .dot-line span.dot-line {
  width: 100px;
  height: 1px;
  background-color: rgba(255, 255, 255, 0.6);
  border-radius: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .advantages-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .advantages-header {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }
  
  .advantages-header p {
    position: relative;
    top: 0;
    left: 0;
    transform: none;
  }
  
  .navigation-dots .dot-line {
    flex-wrap: wrap;
    gap: 20px;
  }
  
  .navigation-dots .dot-line span.dot-line {
    width: 50px;
  }
}

/* 产品实拍 */
.product-photos {
  padding: 60px 0;
  background-color: white;
}

/* 顶部标题 */
.photos-header {
  display: flex;
  gap: 40px;
  background: linear-gradient(to bottom, transparent 50.67%, #f5f5f5 50.67%);
  margin-bottom: 40px;
  padding: 20px 0;
  border-radius: 0;
}

.photos-header .left-section {
  flex: 0 0 50%;
  display: flex;
  justify-content: flex-start;
  align-items: center;
}

.photos-header .main-photo img {
  width: 488px;
  height: auto;
  border: none;
  margin-left: 10px;
  box-shadow: none;
  background-color: #fff;
  border: #EEEEEE 1px solid;
  padding: 5px;
}

.photos-header .right-section {
  flex: 0 0 50%;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding-top: 10px;
}

.title-container {
  text-align: right;
  margin-bottom: 20px;
}

.main-title {
  font-size: 40px;
  margin-bottom: 15px;
  letter-spacing: 1px;
  line-height: 1.2;
  font-weight: bold;
  display: inline-block;
}

.main-title .first-letter {
  color: #ff6600;
  font-weight: bold;
}

.main-title .rest-letters {
  color: #003366;
  font-weight: bold;
}

.title-line {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  margin-bottom: 30px;
}

.title-decoration {
  display: flex;
  align-items: right;
  gap: 8px;
  margin-bottom: 0;
}

.title-decoration .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  border: 1px solid #333333;
  background-color: transparent;
}

.title-decoration .line {
  width: 120px;
  height: 1px;
  background-color: #333333;
}

.title-text {
  font-size: 28px;
  color: #003366;
  letter-spacing: 2.5px;
  font-weight: bold;
}

.photos-header .product-display {
  position: relative;
  margin-top: 80px;
}

.photos-header .product-display h3 {
  font-size: 18px;
  color: #333;
  margin-bottom: 15px;
  letter-spacing: 1px;
  position: relative;
  display: inline-block;
}

.photos-header .product-display h3::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 30px;
  height: 3px;
  background-color: #003366;
}

.photos-header .product-display p {
  font-size: 14px;
  color: #666;
  padding-top: 40px;
  margin-bottom: 30px;
  letter-spacing: 1px;
  max-width: 300px;
}

.photos-header .quote-line {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  position: absolute;
  right: 30px;
  bottom: 0;
  padding-right: 20px;
}

.photos-header .quote-line .vertical-line {
  width: 2px;
  height: 80px;
  background-color: #003366;
}

.photos-header .quote-line .quote {
  font-size: 36px;
  color: #003366;
  font-family: serif;
  line-height: 1;
}

/* 实拍卡片 */
.photos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.photos-grid .photo-card {
  display: flex;
  flex-direction: column;
  border: none;
  overflow: hidden;
  transition: transform 0.3s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.photos-grid .photo-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.photos-grid .photo-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border: 5px solid #dfdddd;
}

.photos-grid .photo-label {
  position: relative;
  padding: 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-radius: 0 0 8px 8px;
  margin-top: -1px;
}

.photos-grid .photo-label span {
  font-size: 16px;
  color: #333;
  letter-spacing: 1px;
  font-weight: bold;
}

.photos-grid .photo-label .english-label {
  font-size: 8px;
  letter-spacing: 1px;
  background-color: #dfdddd;
  border-radius: 20px;
  padding: 5px 10px;
}

.photos-grid .photo-label .english-label span {
  color: #000000;
  font-size: 8px;
  display: inline-block;
}

.photos-grid .photo-label .english-label span::first-letter {
  font-size: 8px;
  color: #ff6600;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .photos-header {
    flex-direction: column;
    gap: 40px;
  }
  
  .photos-header .right-section {
    align-items: center;
    text-align: center;
  }
  
  .photos-header .quote-line {
    position: relative;
    right: 0;
    bottom: 0;
    justify-content: center;
  }
  
  .photos-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* 响应式设计 */
@media (max-width: 768px) {
  .photos-grid {
    grid-template-columns: 1fr;
  }
}

/* 企业介绍 */
.company-intro {
  background: linear-gradient(to bottom, #003366 0%, #003366 38.33%, transparent 38.33%, transparent 100%);
  padding: 40px 0;
  color: white;
}

.intro-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  gap: 30px;
  align-items: flex-start;
}

.intro-content .left-section {
  flex: 1;
}

.intro-content .right-section {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.intro-content .photos-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.intro-content .left-section {
  flex: 1;
  padding: 20px;
  border-radius: 8px;
}

.intro-content .company-profile{
  padding-top: 60px;
}

.intro-content .company-profile p {
  font-size: 16px;
  color: #333;
  line-height: 1.6;
  letter-spacing: 0.5px;
  font-family: "思源黑体", "SimHei", sans-serif;
}

.intro-content .right-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding-top: 60px;
}

.intro-content img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 4px;
  display: block;
  margin: 0 auto;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .intro-content {
    flex-direction: column;
    gap: 40px;
  }
  
  .intro-content .photos-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  
  .intro-content .photo-item img {
    height: 200px;
  }
}

/* 响应式设计 */
@media (max-width: 768px) {
  .intro-content {
    flex-direction: column;
  }
  
  .intro-content .photos-grid {
    grid-template-columns: 1fr;
  }
}

/* 内容容器 */
.content-container {
  width: 1200px;
  max-width: 100%;
  margin: 0 auto;
  padding: 0 40px;
}

/* 顶部横幅 */
.banner-sub {
  width: 100%;
  position: relative;
  overflow: hidden;
}

.banner-sub img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  max-height: 502px;
}

/* 确保banner在不同屏幕尺寸下都能正确显示 */
@media (max-width: 768px) {
  .banner-sub img {
    max-height: 300px;
  }
}