.banner {
  width: 100%;
  height: 460px;
  position: relative;
}

.banner_bg {
  width: 100%;
  height: 100%;
}

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

.banner_content {
  position: absolute;
  top: 50%;
  left: 45%;
  transform: translate(-50%, -50%);
}

.banner_content h2 {
  font-size: 50px;
  color: #fff;
  margin-bottom: 20px;
  font-weight: 700;
}

.banner_content p {
  font-size: 50px;
  color: #fff;
  font-weight: 700;
}

.contact_us {
  width: 100%;
  height: 100%;
  padding: 60px 0 80px;
}


.contact_us_content {
  width: 100%;
  height: 100%;
}

.contact_us_content h2 {
  font-size: 26px;
  color: #282B29;
  margin-bottom: 40px;
  font-weight: 700;
  text-align: center;
}

.contact_us_item {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  padding: 0 130px;
}

.contact_us_item li {
  text-align: center;
  width: 100%;
  height: 100%;
}

.contact_us_item li .icon {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
  justify-content: flex-start;
}

.contact_us_item li img {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
}

.contact_us_item li span {
  text-align: left;
  flex-shrink: 0;
}

.contact_us_item li p {
  text-align: left;
  flex: 1;
}

.message {
  width: 100%;
  height: 100%;
  margin-bottom: 80px;
}

.network_log {
  width: 100%;
  height: 100%;
  padding-bottom: 80px;
}

.network_log_content {
  width: 100%;
  height: 100%;
}

.network_log_content h2 {
  font-size: 26px;
  color: #282B29;
  margin-bottom: 40px;
  font-weight: 700;
  text-align: center;
}

.network_log_list {
  width: 100%;
  height: 100%;
}

.network_log_list ul {
  width: 100%;
  height: 100%;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.network_log_list ul li {
  width: 100%;
  margin-bottom: 10px;
  
}

.network_log_list ul li a {
   padding: 20px;
  display: block;
  width: 100%;
  height: 100%;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  border-radius: 10px;
}

.network_log_list ul li h4 {
  font-size: 20px;
  color: #282B29;
  margin: 20px 0 10px;
}

.network_log_list ul li p {
  font-size: 16px;
  color: #6E706F;
  line-height: 26px;
}

.message_content {
  width: 100%;
  height: 100%;
}

.message_content h2 {
  font-size: 26px;
  color: #282B29;
  margin-bottom: 40px;
  font-weight: 700;
  text-align: center;
}

.form {
  width: 100%;
  height: 100%;
}

.form_box {
  width: 100%;
  height: 100%;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 37px;
  margin-bottom: 20px;
}

.form_item {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: flex-start;
  line-height: 50px;
}

.form_item span {
  font-size: 18px;
  color: #282B29;
  margin-right: 10px;
}

.form_item:first-child span {
  margin-left: 29px;
}

.form_item:last-child span {
  margin-left: 47px;
}

.form_item .input_tex {
  flex: 1;
  width: 100%;
  height: 100%;
  background-color: #F5F7F6;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
}

.form_item input {
  width: 100%;
  height: 50px;
  border-radius: 5px;
  font-size: 18px;
  color: #282B29;
  background-color: transparent;
}

.form_item .input_tex i {
  margin-right: 20px;
}

.form_item .input_tex input::placeholder {
  font-size: 18px;
  color: #AAADAB;
}

.form_last {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: flex-start;
}

.form_last span {
  font-size: 18px;
  color: #282B29;
  margin-right: 10px;
  margin-left: 20px;
  margin-top: 20px;
}

.form_last .input_tex {
  flex: 1;
  width: 100%;
  height: 320px;
  background-color: #F5F7F6;
  padding: 0 20px;
  margin-bottom: 40px;
}


.form_last .input_tex textarea {
  width: 100%;
  height: 100%;
  border-radius: 5px;
  font-size: 18px;
  color: #282B29;
  background-color: transparent;
  border: none;
  line-height: 70px;
}

.form_last .input_tex textarea::placeholder {
  font-size: 18px;
  color: #AAADAB;
}

.form_btn {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.form_btn a {
  font-size: 18px;
  color: #fff;
  padding: 12px 28px;
  border-radius: 48px;
  background-color: #485030;
}

.form_btn .iconfont {
  margin-right: 10px;
}


.return {
  width: 100%;
  padding: 30px 0;
  border-bottom: 1px solid #F0F0F0;
  display: flex;
  justify-content: center;
  align-items: center;

}


.return a {
  display: inline-block;
  font-size: 18px;
  color: #fff;
  padding: 12px 28px;
  border-radius: 48px;
  background-color: #485030;
  text-decoration: none;
  transition: all 0.3s ease;
}

.return a i {
  margin-right: 10px;
}

.blog {
  width: 100%;
  padding-top: 60px;
}

.blog_content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 30px;
}

.blog_list h2 {
  font-size: 30px;
  color: #282B29;
  margin-bottom: 40px;
  font-weight: 700;
  text-align: center;
}

.blog_list p {
  font-size: 18px;
  line-height: 32px;
  color: #6E706F;
  margin-bottom: 40px;
}

.blog_list .blog_pic {
  margin-bottom: 50px;
  text-align: center;
}

.blog_list img {
  object-fit: cover;
  max-width: 100%;
  height: auto;
}

/* 响应式布局 */
@media (max-width: 1200px) {
  .banner {
    height: 238px;
  }

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

  .banner_content h2,
  .banner_content p {
    font-size: 40px;
  }

  .contact_us {
    padding: 40px 30px 60px;
  }

  .contact_us_item {
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    padding: 0 60px;
  }

  .message {
    margin-bottom: 60px;
    padding: 0 30px;
  }

.network_log {
  padding: 0 30px;
}

  .network_log_content h2 {
    font-size: 24px;
    margin-bottom: 30px;
  }

  .network_log_list ul {
    gap: 20px 30px;
     padding: 0 30px;
  }

  .network_log_list ul li {
    margin-bottom: 30px;
  }

  .network_log_list ul li h4 {
    font-size: 18px;
    margin: 15px 0 10px;
  }

  .network_log_list ul li p {
    font-size: 15px;
    line-height: 24px;
  }

  .blog {
    padding-top: 40px;
  }

  .blog_list h2 {
    font-size: 26px;
    margin-bottom: 30px;
  }

  .blog_list p {
    font-size: 16px;
    line-height: 28px;
    margin-bottom: 30px;
  }

  .blog_list .blog_pic {
    margin-bottom: 40px;
  }

  .return {
    padding: 20px;
  }

  .return a {
    font-size: 16px;
    padding: 10px 24px;
  }
}

@media (max-width: 992px) {
  .banner {
    height: 183px;
  }

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

  .banner_content {
    padding: 0 20px;
    left: 50%;
    text-align: center;
  }

  .banner_content h2,
  .banner_content p {
    font-size: 30px;
  }

  .contact_us_content {
    text-align: -webkit-center;
  }

  .contact_us_content h2,
  .message_content h2 {
    font-size: 24px;
    margin-bottom: 30px;
  }

  .contact_us_item {
    width: 50%;
    grid-template-columns: repeat(1, 1fr);
    gap: 30px;
    padding: 0;
  }

  .contact_us_item li p {
    flex: 1;
  }

  .form {
    padding: 0 30px;
  }

  .form_box {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .form_item {
    flex-direction: column;
    align-items: flex-start;
    line-height: normal;
  }

  .form_item span {
    margin-bottom: 10px;
    margin-left: 0 !important;
  }

  .form_last {
    flex-direction: column;
    align-items: flex-start;
  }

  .form_last span {
    margin-left: 0;
    margin-bottom: 10px;
  }

  .form_last .input_tex {
    height: 250px;
  }

  .network_log {
    padding: 0 30px 40px;
  }

  .network_log_content h2 {
    font-size: 22px;
    margin-bottom: 25px;
  }

  .network_log_list ul {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 0 30px;
  }

  .network_log_list ul li {
    margin-bottom: 25px;
    text-align: center;
  }

  .network_log_list ul li h4 {
    font-size: 18px;
    margin: 15px 0 10px;
  }

  .network_log_list ul li p {
    font-size: 15px;
    line-height: 24px;
    text-align: left;
  }

  .blog {
    padding-top: 30px;
  }

  .blog_content {
    padding: 0 30px;
  }

  .blog_list h2 {
    font-size: 22px;
    margin-bottom: 25px;
  }

  .blog_list p {
    font-size: 15px;
    line-height: 26px;
    margin-bottom: 25px;
  }

  .blog_list .blog_pic {
    margin-bottom: 30px;
  }

  .return {
    padding: 15px 20px;
  }

  .return a {
    font-size: 16px;
    padding: 10px 24px;
  }
}

@media (max-width: 768px) {
  .banner {
    height: 170px;
  }

  .banner img {
    width: 100%;
    height: 100%;
  }

  .banner_content h2,
  .banner_content p {
  font-size: 20px;
  }

  .contact_us {
    padding: 30px 0 50px;
  }

  .contact_us_item {
    width: 80%;
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 0 30px;
  }

  .contact_us_item li {
    text-align: center;
  }

  .contact_us_content h2,
  .message_content h2 {
    font-size: 22px;
    margin-bottom: 25px;
  }

  .form {
    padding: 0;
  }

  .message {
    margin-bottom: 40px;
    padding: 0 20px;
  }

  .form_last .input_tex {
    height: 200px;
  }

  .form_btn a {
    font-size: 16px;
    padding: 10px 24px;
  }

  .network_log {
    padding: 0 20px 30px;
  }

  .network_log_content h2 {
    font-size: 20px;
    margin-bottom: 20px;
  }

  .network_log_list ul {
    gap: 15px;
  }

  .network_log_list ul li {
    margin-bottom: 20px;
  }

  .network_log_list ul li h4 {
    font-size: 16px;
    margin: 12px 0 8px;
  }

  .network_log_list ul li p {
    font-size: 14px;
    line-height: 22px;
  }

  .blog {
    padding-top: 20px;
  }

  .blog_content {
    padding: 0 20px;
  }

  .blog_list h2 {
    font-size: 20px;
    margin-bottom: 20px;
  }

  .blog_list p {
    font-size: 14px;
    line-height: 24px;
    margin-bottom: 20px;
  }

  .blog_list .blog_pic {
    margin-bottom: 20px;
  }

  .return {
    padding: 10px 20px;
  }

  .return a {
    font-size: 16px;
    padding: 10px 24px;
  }
}