.ban {
  height: auto;
  overflow: hidden;
  background: url('banner1.jpg') center center;
}


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


/* 头部样式 */
.hero {
  position: relative;
  z-index: 1;
  background: url('banner.jpg') no-repeat center center/cover;
  padding: 50px 0;
  color: white;
  height: 700px;
}

.hero .biaoshi,
.hero h1,
.hero p {
  margin-left: 50px;
  padding-left: 0;
}

.hero .biaoshi {
  width: 100px;
  height: 30px;
  border-radius: 5px;
  background-color: #C52D2D;
  margin-bottom: 10px;
  color: #fff;
  display: block;
  line-height: 30px;
  font-weight: bold;
  text-align: center;
  letter-spacing: 2px;
  font-size: 1.8rem;
}

.hero h1 {
  font-size: 6rem;
  margin-bottom: 10px;
  color: #3B3B3B;
  margin-left: 100px;
}

.hero span {
  font-size: 6rem;
  margin-bottom: 10px;
  color: #C52D2D;
  margin-left: 10px;
}

.hero hr {
  width: 80px;
  height: 5px;
  border-bottom: #C52D2D 6px solid;
  margin-left: 100px;
  margin-bottom: 10px;
}

.hero p {
  margin-bottom: 10px;
  color: #000;
  font-size: 24px;
  margin-left: 50px;
}

/* 产品系列 */
.product-series {
  position: relative;
  margin-top: -300px;
  z-index: 10;
  background-color: rgba(197, 45, 45, 0.8);
  /* 使用rgba设置半透明红色 */
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.product-series h2 {
  font-size: 8rem;
  color: #3B3B3B;
  padding-left: 0;
}

.product-series hr {
  width: 80px;
  height: 5px;
  border-bottom: #C52D2D 5px solid;
}

.product-series p {
  color: #000;
  font-size: 2.5rem;
  padding-left: 0;
}

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

.title-block>div {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-left: 100px;
}

.title-block img {
  max-height: 150px;
  margin-left: 20px;
  align-self: center;
  margin-right: 50px;
}

.product-item {
  display: flex;
  width: 1100px;
  margin: 0 auto 20px;
}

.product-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0 10px;
}

.product-table tr {
  margin-bottom: 10px;
}

.product-type,
.product-model {
  padding: 10px 20px;
  vertical-align: middle;
}


.product-type {
  width: 40%;
  background-color: rgba(197, 45, 45, 0.8);
  color: white;
  padding: 20px 20px;
  text-align: center;
  font-size: 3rem;
  letter-spacing: 2px;

}

.product-model {
  width: 900px;
  background-color: rgba(255, 255, 255, 0.8);
  color: black;
  padding: 20px 100px;
  text-align: left;
}

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

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

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


.product-photo {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 10px;
  ;
}

.product-photo-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  margin: 0;
}

.product-photo-title>div {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  width: 90%;
}

.product-photo-title img {
  max-height: 100px;
  width: auto;
  height: auto;
  margin-left: auto;
  align-self: center;
}

.product-photo h2 {
  font-size: 5rem;
  margin-bottom: 10px;
  color: #000;
  margin: 0;
  padding: 0;
}

.product-photo h2 span {
  color: #C53232;
}

.product-photo hr {
  width: 50px;
  border-bottom: #C52D2D 3px solid;
  margin-bottom: 10px;
}

.product-photo p {
  margin-bottom: 20px;
  color: #666;
  font-size: 2rem;
  margin: 0;
  padding: 0;
}

.photo-item {
  width: calc(33% - 10px);
  margin-bottom: 6px;
  border: 1px solid #ddd;
  border-radius: 3px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.photo-item img {
  width: 100%;
  height: auto;
  border-radius: 3px;
  border: #3B3B3B 1px solid;
}


.quality-section {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.quality-section h2 {
  text-align: center;
  font-size: 6rem;
  line-height: 75px;
}

.quality-section span {
  text-align: center;
  font-size: 6rem;
  line-height: 70px;
  color: #C52D2D;
}

.quality-section p {
  font-size: 20px;
  line-height: 40px;
  text-align: center;
  margin: 0 auto;
  letter-spacing: 6px;
}

.quality-section hr {
  width: 50px;
  border-bottom: #000 5px solid;
  margin: 5px 0;
}


.quality-section {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.quality-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.quality-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 30px;
  width: 100%;
}

.quality-item {
  width: 49%;
  background-color: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.quality-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px;
  color: #fff;
  background-color: #C52D2D;
}

.quality-text {
  flex: 1;
}

.quality-text h3 {
  font-size: 4rem;
  position: relative;
  display: inline-block;
}

.quality-text h3::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 8px;
  background-color: #FFC600;
  z-index: 1;
}

.quality-text p {
  font-size: 1.8rem;
  color: #fff;
  float: left;
}

.quality-number {
  font-size: 8rem;
  font-weight: bold;
  background: linear-gradient(to bottom, #ffffff, #C52D2D);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
  text-shadow:
    -1px -1px 0 #fff,
    1px -1px 0 #fff,
    -1px 1px 0 #fff,
    1px 1px 0 #fff;
}

.quality-item img {
  width: 100%;
  height: auto;
  display: block;
  border-top: 1px solid #fff;
}


.application-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-around;
  background-color: #C52D2D;
}

.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: #FFC600;
}

.application-section p {
  font-size: 20px;
  color: #FFf;
  padding: 8px 0 8px;
  text-align: center;
  margin: 0 auto;
  letter-spacing: 6px;
}

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

.app-number {
  font-size: 8rem;
  font-weight: bold;
  background: linear-gradient(to bottom, #ffffff, #C52D2D);
  -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');
  min-height: 100vh;
}

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

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

}

.about-info {
  margin-top: 20px;
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
}

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

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

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

.about-us p {
  background-color: rgba(128, 128, 128, 0.7);
  color: white;
  padding: 20px;
  max-width: 800px;
  margin: 20px auto;
  border-radius: 5px;
  font-size: 22px;
}


html {
  font-size: 62.5%;

}


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

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

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

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

  .hero .biaoshi,
  .hero h1,
  .hero p,
  .product-series h2,
  .product-series p {
    margin-left: 20px;
  }

  .product-item {
    width: 95%;
  }

  .product-type,
  .product-model {
    padding: 10px;
  }

  .photo-item {
    width: 100%;
  }

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


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


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


@media (max-width: 768px) {
  .product-table {
    display: block;
    overflow-x: auto;
  }

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


@media (max-width: 768px) {
  .quality-row {
    flex-direction: column;
  }

  .quality-content {
    flex-direction: column;
    text-align: center;
  }

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


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

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