/* 重置样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

h1,
h2,
h3,
span， .quality-text h3,
.product-series h2,
.selected-quality-section h2,
.product-details h2 {
  font-weight: 900;
  letter-spacing: 5px;
  font-family: "黑体", "SimHei", sans-serif;
}


.body1 {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  max-width: 1200px;
  margin: 0 auto;
}


p {
  font-family: "宋体", "SimSun", serif;
}


.ban {
  height: 498px;
  overflow: hidden;
  background: url('banner1.png') center center;
}


.hero {
  background: url('banner.jpg') no-repeat center center/cover;
  padding: 50px 0;
  color: white;
  height: 900px;
}

.hero .biaoshi,
.hero h1,
.hero p {
  margin-left: 100px;
  padding-left: 0;
}

.hero .biaoshi {
  width: 150px;
  height: 50px;
  border-radius: 5px;
  background-color: #FF9C00;
  margin-bottom: 10px;
  color: #fff;
  display: block;
  line-height: 50px;
  font-weight: bold;
  text-align: center;
  letter-spacing: 2px;
  font-size: 2rem;
}

.hero h1 {
  font-size: 10rem;
  margin-bottom: 10px;
  color: #3B3B3B;
  margin-left: 100px;
  font-weight: bold;
}

.hero hr {
  width: 80px;
  height: 5px;
  border-bottom: #FF9C00 6px solid;
  margin-left: 100px;
  margin-bottom: 10px;
}

.hero p {
  margin-bottom: 10px;
  color: #000;
  font-size: 3rem;
  margin-left: 100px;
}

.product-series {}


.title-text {
  text-align: center;
  width: 100%;
  margin: 0 auto;
}

.product-series h2 {
  font-size: 80px;
  line-height: 85px;
  color: #515151;
  margin-top: -53px;
  text-align: center;
}

.product-series span {
  font-size: 85px;
  font-family: Impact;
  line-height: 100px;
  text-transform: uppercase;
  color: #e1e1e1;
  text-align: center;
}

.product-series hr {
  width: 20%;
  border-bottom: 1px solid #000;
  margin: 20px auto;
}

.product-series p {
  margin-bottom: 10px;
  color: #000;
  font-size: 30px;
  text-align: center;
  margin-left: 0;
}

.product-series img {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  width: 100%;
}


.product-item {
  display: flex;
  width: 1400px;
  margin: 0 auto 20px;
}

.product-type {
  width: 40%;
  background-color: #FF9C00;
  color: white;
  padding: 10px 20px;
  text-align: center;
}

.product-model {
  width: 900px;
  background-color: white;
  color: black;
  padding: 10px 20px;
  text-align: center;
}

.product-model a {
  color: black;
  text-decoration: none;
}

.product-model a:hover {
  color: red;
}


.product-model::before {
  content: "型号：";
  color: red;
}


.product-details {
  max-width: 1400px;
}


.title-block {
  display: flex;
  width: 100%;
  justify-content: space-between;
  align-items: center;
  margin: 8px auto;
  padding-bottom: 5px;
  border-bottom: 1px solid #ccc;
}

.title-text {
  text-align: left;
  width: 80%;
  margin: 8px 0;
  margin-left: 0;
}


.title-block img {
  width: 60px;
  height: 60px;
  object-fit: contain;
  margin-left: auto;
  margin-right: 0;
}


.product-details h2 {
  font-size: 4rem;
  margin: 8px auto;
  color: #000;
  margin: 0;
  padding: 0;
}


.product-details h2 span {
  color: #FF9C00;
  margin: 8px auto;
}


.product-details hr {
  width: 50px;
  border-bottom: #FF9C00 4px solid;
}


.product-details p {
  margin: 8px auto;
  font-size: 2rem;
  margin: 0;
  padding: 0;
}

.detail-container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  margin-top: 30px;
}

.detail-item {
  width: calc(33.33% - 20px);
  margin-bottom: 30px;
  text-align: center;
}

.detail-item img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid #ddd;
  border-radius: 5px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.detail-item div {
  margin-top: 20px;
  font-size: 2.5rem;
  color: #333;
  padding: 10px 0;
  text-align: center;
  border-top: 2px solid #ddd;
  border-bottom: 2px solid #ddd;
  width: 300px;
}


.product-photo {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.product-photo h2 {
  font-size: 4rem;
  margin-bottom: 10px;
  color: #000;
  margin: 0;
  padding: 0;
}

.product-photo h2 span {
  color: #FF9C00;
}

.product-photo hr {
  width: 50px;
  border-bottom: #FF9C00 3px solid;
  margin-bottom: 10px;
}

.product-photo p {
  margin-bottom: 20px;
  font-size: 2rem;
  letter-spacing: 2px;
  margin: 0;
  padding: 0;
}

.title-block {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.title-block>div {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.title-block img {
  max-height: 150px;
  margin-left: 20px;
  align-self: center;
}

.product-photo1 {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 20px;
  padding: 40px 20px 10px;
}

.photo-item {
  width: calc(33% - 10px);
  margin-bottom: 10px;
  border: 1px solid rgb(77, 77, 77);
  border-radius: 3px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.photo-item img {
  width: 100%;
  height: auto;
  border-radius: 3px;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  filter: brightness(1.05) contrast(1.1);
}

.selected-quality-section {
  text-align: center;
}

.selected-quality-section h2 {
  font-size: 5rem;
  margin: 8px 0;
  line-height: 60px;
}

.selected-quality-section span {
  color: #FF9C00;
  line-height: 50px;
  margin: 8px 0;
}

.selected-quality-section hr {
  height: 5px;
  width: 100px;
  margin: 8px auto;
  background-color: #FF9C00;
  border: none;
}

.selected-quality-section p {
  font-size: 2.5rem;
  margin: 8px 0;
}


.selected-quality-container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  max-width: 1400px;
  margin: 0 auto;
}

.quality-item {
  width: calc(33.33% - 20px);
  margin-bottom: 40px;
  border: 1px solid #FF9C00;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}


.quality-content {
  display: flex;
  flex-direction: column;
  height: auto;
}


.quality-img {
  margin-top: auto;
  width: 100%;
  align-self: flex-end;
}

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

.quality-text {
  flex: 1;
  margin: 0 20px;
  text-align: left;
}

.quality-number {
  font-size: 12rem;
  font-weight: bold;
  margin-right: 50px;
  color: #FFF;
}

.quality-text h3 {
  position: relative;
  display: inline-block;
  margin-bottom: 20px;
  font-size: 4rem;
  color: #000;
  z-index: 1;
}

.quality-text h3::after {
  content: "";
  position: absolute;
  bottom: 0px;
  left: 0;
  width: 100%;
  height: 15px;
  background-color: #FFC500;
  z-index: -1;
}

.quality-text p {
  font-size: 20px;
  letter-spacing: 2px;
  height: 250px;
}

.application-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-around;
  background-color: #FF9C00;
}

.application-section h2 {
  text-align: center;
  font-size: 6rem;
  line-height: 75px;
  color: #fff;
}

.application-section span {
  text-align: center;
  font-size: 6rem;
  line-height: 75px;
  color: #FED339;
}

.application-section p {
  font-size: 20px;
  color: #FFf;
  text-align: center;
  margin: 0 auto;
  letter-spacing: 6px;
}

.application-section hr {
  width: 50px;
  border-bottom: #FFf 3px solid;
  margin: 5px 0;
}

.single-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  max-width: 1200px;
  margin: 0 auto;
}

.application-item {
  width: calc(25% - 8px);
  margin-bottom: 20px;
  border-radius: 5px;
  overflow: hidden;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

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

.app-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px;
  background-color: #fff;
}

.app-text {
  flex: 1;
  text-align: left;
  order: 1;
}

.app-number {
  order: 2;
  font-size: 8rem;
  font-weight: bold;
  background: linear-gradient(to bottom, #ffffff, #FEDC67);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

.about-us {
  padding: 50px 20px;
  text-align: center;
  background: url('gzbj.png') no-repeat center center/cover;
}

.about-us h2 {
  font-size: 6rem;
  color: #fff;
  margin-bottom: 20px;
}

.about-us hr {
  width: 93%;
  height: 5px;
  margin: 5px 40px 20px 40px;
  border-top: #fff 3px solid;
}

.about-info {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
}

.info-item {
  text-align: center;
  margin-bottom: 20px;
}

.info-item h3 {
  color: #fff;
}

.info-item img {
  width: 100px;
  height: 100px;
}

.about-us p {
  max-width: 800px;
  font-size: 30px;
  color: white;
  padding: 20px;
  margin: 20px auto;
  border-radius: 5px;
  background-color: rgba(128, 128, 128, 0.7);
}

.about-us img {
  margin-bottom: 20px;
}


html {
  font-size: 62.5%;
}


@media (max-width: 1200px) {
  html {
    font-size: 58%;
  }

  .hero h1,
  .product-series h2,
  .selected-quality-section h2 {
    font-size: 6rem;
  }

  .hero p,
  .product-series p {
    font-size: 2.5rem;
  }
}

@media (max-width: 992px) {
  html {
    font-size: 54%;
  }

  .hero {
    height: 700px;
  }

  .product-item {
    width: 95%;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 50%;
  }

  .hero {
    height: 500px;
    background-size: cover;
  }

  .hero .biaoshi,
  .hero h1,
  .hero p {
    margin-left: 20px;
  }

  .product-item,
  .quality-item,
  .application-item {
    width: 100%;
  }

  .photo-item {
    width: 100%;
  }
}


.hero,
.about-us,
.ban {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

@media (max-width: 768px) {
  .ban {
    height: 300px;
  }
}


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


@media (max-width: 768px) {

  .product-type,
  .product-model {
    width: 100%;
    display: block;
  }

  .product-model {
    margin-top: 10px;
  }
}


@media (max-width: 768px) {
  .quality-content {
    flex-direction: column;
    text-align: center;
  }

  .quality-number {
    margin-top: 10px;
  }

  .product-series span {
    font-size: 35px;
    font-family: Impact;
    line-height: 100px;
    text-transform: uppercase;
    color: #e1e1e1;
    text-align: center;
  }

}


@media (max-width: 992px) {
  .application-item {
    width: calc(50% - 10px);
  }
}

@media (max-width: 576px) {
  .application-item {
    width: 100%;
  }

}