@charset 'utf-8';
.container-fluid {
  width: 100%;
  height: 100%;
  padding: 0;
  margin: 0;
  text-align: center;
  /* 底部样式 */
  /* 版权信息 */
  /* 响应式设计 */
  /* 平板及以下设备 */
  /* 小屏幕手机 */
}
.container-fluid .banner {
  width: 100%;
  height: 600px;
  /*background: url("/images/banner_bg.png") no-repeat;*/
  background-size: 100% 100%;
  position: relative;
  text-align: center;
}
.container-fluid .banner .middle_img {
  height: 600px;
  margin: 0 auto;
  display: block;
  max-width: 100%;
}
@media (max-width: 1024px) {
  .container-fluid .banner {
    height: 400px;
  }
  .container-fluid .banner .middle_img {
    height: 400px;
  }
}
@media (max-width: 767px) {
  .container-fluid .banner {
    height: 250px;
  }
  .container-fluid .banner .middle_img {
    height: 250px;
  }
}
.container-fluid .middel_title {
  width: 100%;
  padding: 0 20px;
}
.container-fluid .middel_title .middle_tips_bold {
  font-size: 38px;
  font-weight: bold;
  margin-top: 40px;
  margin-bottom: 30px;
  color: #000;
}
.container-fluid .middel_title .middle_tips {
  font-size: 20px;
  color: #000;
}
@media (max-width: 1024px) {
  .container-fluid .middel_title .middle_tips_bold {
    font-size: 28px;
    margin-top: 30px;
    margin-bottom: 20px;
  }
  .container-fluid .middel_title .middle_tips {
    font-size: 18px;
  }
}
@media (max-width: 767px) {
  .container-fluid .middel_title .middle_tips_bold {
    font-size: 22px;
    margin-top: 20px;
    margin-bottom: 15px;
  }
  .container-fluid .middel_title .middle_tips {
    font-size: 16px;
  }
}
.container-fluid .why_change_title {
  margin-top: 92px;
  padding: 0 20px;
}
.container-fluid .why_change_title .middle_tips_bold {
  font-size: 38px;
  font-weight: bold;
  margin-bottom: 30px;
  color: #000;
}
@media (max-width: 1024px) {
  .container-fluid .why_change_title {
    margin-top: 60px;
  }
  .container-fluid .why_change_title .middle_tips_bold {
    font-size: 28px;
    margin-bottom: 20px;
  }
}
@media (max-width: 767px) {
  .container-fluid .why_change_title {
    margin-top: 40px;
  }
  .container-fluid .why_change_title .middle_tips_bold {
    font-size: 22px;
    margin-bottom: 15px;
  }
}
.container-fluid .middle_content {
  width: 1040px;
  margin: 60px auto;
  padding: 0 20px;
}
@media (max-width: 1200px) {
  .container-fluid .middle_content {
    width: 100%;
    max-width: 1040px;
  }
}
@media (max-width: 1024px) {
  .container-fluid .middle_content {
    margin: 40px auto;
    padding: 0 15px;
  }
}
@media (max-width: 767px) {
  .container-fluid .middle_content {
    margin: 30px auto;
    padding: 0 10px;
  }
}
.container-fluid .middle_content .middle_item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
}
@media (max-width: 1024px) {
  .container-fluid .middle_content .middle_item {
    flex-direction: column;
    margin-bottom: 30px;
  }
}
@media (max-width: 767px) {
  .container-fluid .middle_content .middle_item {
    margin-bottom: 20px;
  }
}
.container-fluid .middle_content .middle_item .left_content {
  text-align: left;
}
.container-fluid .middle_content .middle_item .left_content .title {
  font-weight: 500;
  font-size: 24px;
  color: #000000;
  margin-bottom: 17px;
}
.container-fluid .middle_content .middle_item .left_content .title::before {
  content: "";
  display: inline-block;
  width: 12px;
  height: 12px;
  background: url("../images/title_icon.png") no-repeat;
  margin-right: 10px;
}
.container-fluid .middle_content .middle_item .left_content .tips {
  font-weight: 400;
  font-size: 16px;
  color: #596476;
  margin-bottom: 10px;
}
.container-fluid .middle_content .middle_item .left_content .tips::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  background: url("../images/tips_icon.png") no-repeat;
  margin-right: 10px;
}
@media (max-width: 1024px) {
  .container-fluid .middle_content .middle_item .left_content .title {
    font-size: 22px;
    margin-bottom: 15px;
  }
  .container-fluid .middle_content .middle_item .left_content .tips {
    font-size: 15px;
    margin-bottom: 8px;
  }
}
@media (max-width: 767px) {
  .container-fluid .middle_content .middle_item .left_content {
    text-align: center;
  }
  .container-fluid .middle_content .middle_item .left_content .title {
    font-size: 20px;
    margin-bottom: 12px;
  }
  .container-fluid .middle_content .middle_item .left_content .tips {
    font-size: 14px;
    margin-bottom: 6px;
  }
}
.container-fluid .middle_content .middle_item .right_image img {
  max-width: 100%;
  height: auto;
}
@media (max-width: 1024px) {
  .container-fluid .middle_content .middle_item .right_image {
    margin-top: 20px;
  }
}
@media (max-width: 767px) {
  .container-fluid .middle_content .middle_item .right_image {
    margin-top: 15px;
  }
}
.container-fluid .middle_content .middle_item:last-child {
  padding-bottom: 289px;
}
@media (max-width: 1024px) {
  .container-fluid .middle_content .middle_item:last-child {
    padding-bottom: 200px;
  }
}
@media (max-width: 767px) {
  .container-fluid .middle_content .middle_item:last-child {
    padding-bottom: 150px;
  }
}
@media (max-width: 1024px) {
  .container-fluid .middle_content .middle_item:nth-child(even) {
    flex-direction: column-reverse;
  }
}
.container-fluid .footer {
  background-color: #2d2d2d;
  color: white;
  font-family: Arial, sans-serif;
  padding: 40px 20px;
  width: 100%;
  position: relative;
}
.container-fluid .footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}
.container-fluid .footer-column {
  flex: 1;
  min-width: 250px;
  padding: 0 15px;
  margin-bottom: 30px;
}
.container-fluid .footer-column h3 {
  color: white;
  margin-bottom: 20px;
  font-size: 18px;
  position: relative;
  padding-bottom: 10px;
}
.container-fluid .footer-column ul {
  list-style: none;
  padding: 0;
}
.container-fluid .footer-column ul li {
  margin-bottom: 12px;
}
.container-fluid .footer-column a {
  color: #ccc;
  text-decoration: none;
  transition: color 0.3s ease;
  font-size: 14px;
}
.container-fluid .footer-column a:hover {
  color: #007bff;
}
.container-fluid .contact-info {
  line-height: 1.8;
}
.container-fluid .contact-info p {
  margin: 8px 0;
  font-size: 14px;
  color: #ccc;
}
.container-fluid .qr-code-container {
  text-align: center;
}
.container-fluid .qr-code {
  width: 120px;
  height: 120px;
  border: 2px solid #fff;
  padding: 10px;
  background-color: #fff;
  margin: 0 auto 15px;
}
.container-fluid .qr-code img {
  width: 100%;
  height: 100%;
}
.container-fluid .qr-text {
  font-size: 14px;
  color: #ccc;
  text-align: center;
}
.container-fluid .footer-bottom {
  background-color: #000;
  color: #ccc;
  text-align: center;
  padding: 15px 20px;
  font-size: 12px;
  clear: both;
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
}
.container-fluid .footer-bottom p {
  margin: 0;
  line-height: 1.6;
}
@media (min-width: 768px) {
  .container-fluid .footer {
    padding: 50px 30px;
  }
  .container-fluid .footer-column {
    margin-bottom: 0;
  }
  .container-fluid .footer-column h3 {
    font-size: 20px;
  }
  .container-fluid .footer-column a,
  .container-fluid .contact-info p,
  .container-fluid .qr-text {
    font-size: 15px;
  }
  .container-fluid .qr-code {
    width: 140px;
    height: 140px;
  }
}
@media (min-width: 1024px) {
  .container-fluid .footer {
    padding: 60px 40px;
  }
  .container-fluid .footer-column h3 {
    font-size: 22px;
  }
  .container-fluid .footer-column a,
  .container-fluid .contact-info p,
  .container-fluid .qr-text {
    font-size: 16px;
  }
  .container-fluid .qr-code {
    width: 150px;
    height: 150px;
  }
}
@media (max-width: 767px) {
  .container-fluid .footer-container {
    flex-direction: column;
    align-items: center;
  }
  .container-fluid .footer-column {
    text-align: center;
    min-width: 100%;
    margin-bottom: 40px;
  }
  .container-fluid .footer-column:nth-child(1),
  .container-fluid .footer-column:nth-child(2) {
    text-align: center;
  }
  .container-fluid .footer-column:nth-child(3) {
    text-align: center;
  }
  .container-fluid .footer-column h3::after {
    left: 50%;
    transform: translateX(-50%);
  }
  .container-fluid .contact-info p {
    text-align: center;
  }
  .container-fluid .qr-code {
    width: 100px;
    height: 100px;
  }
}
@media (max-width: 480px) {
  .container-fluid .footer {
    padding: 30px 15px;
  }
  .container-fluid .footer-column {
    padding: 0 10px;
  }
  .container-fluid .footer-column h3 {
    font-size: 16px;
    margin-bottom: 15px;
  }
  .container-fluid .footer-column a,
  .container-fluid .contact-info p,
  .container-fluid .qr-text {
    font-size: 13px;
  }
  .container-fluid .qr-code {
    width: 90px;
    height: 90px;
  }
  .container-fluid .footer-bottom {
    padding: 12px 15px;
    font-size: 11px;
  }
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  padding: 0;
}
img {
  max-width: 100%;
  height: auto;
}