.inner-section .content {
  width: 12rem;
  max-width: 1200px;
  margin: 0 auto;
}

.inner-section .content .title {
  font-size: 24px;
  font-weight: 600;
  text-align: left;
  color: #000000;
  line-height: 33px;
  position: relative;
  margin-bottom: calc(12px + 42px);
}

.inner-section .content .title::after {
  content: "";
  position: absolute;
  width: 80px;
  height: 4px;
  background: #bd0008;
  border-radius: 2px;
  bottom: -18px;
  left: 0;
}

.inner-section .product .p_item {
  padding: 90px 0;
  border-bottom: 1px solid #e7e7e7;
}

.inner-section .product .p_item .content::after {
  content: "";
  display: block;
  width: 0;
  height: 0;
  clear: both;
}

.inner-section .product .p_item .left {
  float: left;
  width: 266px;
}

.inner-section .product .p_item .right {
  float: left;
  box-sizing: border-box;
  width: calc(100% - 266px);
  padding-left: 0.53rem;
}

.inner-section .product .p_item .right ul {
  position: relative;
  height: 100%;
}

.inner-section .product .p_item .right ul::before {
  content: "";
  display: block;
  position: absolute;
  top: 0;
  left: -0.53rem;
  width: 1px;
  height: calc(100% - 0.4rem);
  background-color: #e7e7e7;
}

.inner-section .product .p_item .right ul::after {
  content: "";
  display: block;
  width: 0;
  height: 0;
  clear: both;
}

.inner-section .product .p_item .right ul li {
  float: left;
  box-sizing: border-box;
  width: calc((100% - 17.1%) / 4);
  height: 1.9rem;
  max-width: 190px;
  max-height: 190px;
  background: #ffffff;
  border-radius: 6px;
  box-shadow: 0px 0.02rem 0.16rem rgba(0, 0, 0, 0.16);
  margin-bottom: 0.4rem;
  padding: 34px 0;
}

.inner-section .product .p_item .right ul li:not(:nth-child(4n + 1)) {
  margin-left: 5.7%;
}

.inner-section .product .p_item .right ul li .ico {
  width: 0.52rem;
  height: 0.52rem;
  max-width: 52px;
  max-height: 52px;
  margin: 0 auto;
}

.inner-section .product .p_item .right ul li .ico img {
  width: 100%;
  height: 100%;
}

.inner-section .product .p_item .right ul li .i_title {
  padding: 13px 0 2px 0;
  font-size: 16px;
  font-weight: 600;
  text-align: center;
  color: #000000;
  line-height: 22px;
}

.inner-section .product .p_item .right ul li .i_text {
  padding-bottom: 12px;
  font-size: 12px;
  font-weight: 400;
  text-align: center;
  color: rgba(0, 0, 0, 0.5);
  line-height: 17px;
}

.inner-section .product .p_item .right ul li .i_line {
  width: 0.4rem;
  height: 0.04rem;
  opacity: 1;
  background: #e5e5e5;
  border-radius: 2px;
  margin: 0 auto;
}

.inner-section .product .video-box {
  width: 12rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 100px 0;
  font-size: 0;
}

.inner-section .product .video-box .three-card {
  display: inline-block;
  width: 30%;
  margin-bottom: 40px;
  vertical-align: top;
}

.inner-section .product .video-box .three-card .case-card-img {
  padding-top: 55.79%;
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
  transition: background-size 0.3s;
  -webkit-transition: background-size 0.3s;
}

.inner-section .product .video-box .three-card .case-card-img .play {
  width: 42px;
  height: 34px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-21px, -17px);
}

.inner-section .product .video-box .three-card .case-card-img .play img {
  max-width: 100%;
}

.inner-section .product .video-box .three-card:nth-child(2n) {
  margin-left: 5%;
  margin-right: 5%;
}

.inner-section .product .video-box .three-card .case-card-content {
  background: #ffffff;
  border-radius: 4px;
  box-shadow: 0px 4px 10px 0px rgba(0, 0, 0, 0.1);
  padding: 10px 16px;
}

.inner-section .product .video-box .three-card .video-title {
  font-size: 16px;
  font-weight: 400;
  text-align: justify;
  color: #000000;
  line-height: 28px;
  transition: color 0.3s;
  -webkit-transition: color 0.3s;
}

.inner-section .product .video-box .three-card .video-time {
  font-size: 14px;
  font-weight: 300;
  text-align: left;
  color: #969696;
  line-height: 20px;
  position: relative;
  margin-top: 1px;
  transition: color 0.3s;
  -webkit-transition: color 0.3s;
}

.inner-section .product .video-box .three-card .video-time img {
  position: absolute;
  right: 0;
  bottom: 2px;
  transition: transform 0.3s;
  -webkit-transition: transform 0.3s;
}

.inner-section .product .video-box .three-card:hover .case-card-img {
  background-size: 120%;
}

.inner-section .product .video-box .three-card:hover .video-title {
  color: #bd0008;
}

.inner-section .product .video-box .three-card:hover .video-time {
  color: #bd0008;
}

.inner-section .product .video-box .three-card:hover .video-time img {
  transform: translateY(-5px);
  -webkit-transform: translateY(-5px);
}

.inner-section .product .video-box .video-box-button {
  width: 180px;
  height: 40px;
  margin: 0 auto;
  background: linear-gradient(225deg, #ea462b, #bd0008);
  border-radius: 20px;
  box-shadow: 0px 4px 20px rgba(0, 0, 0, 0.2);
  font-weight: 500;
  text-align: center;
  font-size: 18px;
  color: #ffffff;
  line-height: 40px;
  cursor: pointer;
}

.inner-section .product .video-box .video-box-button:hover {
  box-shadow: none;
}

.inner-section .product .contact_us {
  width: 100%;
  padding: 65px 0;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  background-image: url(../images/p_contact_us_bg.jpg);
}

.inner-section .product .contact_us .contact_us_content {
  width: 10.08rem;
  max-width: 1008px;
  margin: 0 auto;
}

.inner-section .product .contact_us::after {
  content: "";
  display: block;
  width: 0;
  height: 0;
  clear: both;
}

.inner-section .product .contact_us .left {
  float: left;
  color: #fff;
}

.inner-section .product .contact_us .left .title {
  font-size: 30px;
  font-weight: 300;
  text-align: left;
  line-height: 42px;
  letter-spacing: -1px;
}

.inner-section .product .contact_us .left .title br {
  display: none;
}

.inner-section .product .contact_us .left .text {
  margin-top: 10px;
  font-size: 14px;
  font-weight: 300;
  text-align: left;
  line-height: 18px;
  letter-spacing: 1px;
}

.inner-section .product .contact_us .right {
  float: right;
}

.inner-section .product .contact_us .right .bottom_button {
  position: relative;
  box-sizing: border-box;
  width: 182px;
  height: 40px;
  line-height: 40px;
  margin-top: 10px;
  padding: 0 18px;
  background-color: #fff;
  border-radius: 5px;
  box-shadow: 20px 20px 60px 0px rgba(0, 0, 0, 0.4);
  color: #bd0008;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 7px;
  text-align: left;
}

.inner-section .product .contact_us .right .bottom_button:hover {
  box-shadow: none;
}

.inner-section .product .contact_us .right .bottom_button span {
  position: absolute;
  top: 50%;
  right: 18px;
  transform: translateY(-50%);
  -webkit-transform: translateY(-50%);
}

@media screen and (max-width: 768px) {
  .inner-section .content {
    width: calc(100% - 40px);
    margin: 0 auto;
  }
  .inner-section .content .title {
    font-size: 22px;
    line-height: 30px;
    margin-bottom: 28px !important;
    text-align: center !important;
  }
  .inner-section .content .title::after {
    left: 50% !important;
    transform: translateX(-50%) !important;
    -ms-transform: translateX(-50%) !important;
    -moz-transform: translateX(-50%) !important;
    -webkit-transform: translateX(-50%) !important;
    -o-transform: translateX(-50%);
    width: 60px;
    height: 4px;
    border-radius: 2px;
  }
  .inner-section .product .p_item {
    padding: 30px 0;
  }
  .inner-section .product .p_item .content::after {
    display: none;
  }
  .inner-section .product .p_item .left {
    float: none;
    width: 100%;
  }
  .inner-section .product .p_item .right {
    float: none;
    width: 100%;
    padding-left: 0;
    padding-top: 40px;
  }
  .inner-section .product .p_item .right ul::before {
    display: none;
    position: absolute;
    top: -20px;
    left: 0;
    width: 100%;
    height: 1px;
  }
  .inner-section .product .p_item .right ul li {
    float: left;
    box-sizing: border-box;
    width: calc((100% - 10%) / 3);
    height: 160px;
    max-width: 400px;
    margin-bottom: 20px;
    padding: 10px;
  }
  .inner-section .product .p_item .right ul li:not(:nth-child(4n + 1)) {
    margin-left: 0;
  }
  .inner-section .product .p_item .right ul li:not(:nth-child(3n)) {
    margin-right: 5%;
  }
  .inner-section .product .p_item .right ul li .ico {
    width: 0.32rem;
    height: 0.32rem;
    max-width: 32px;
    max-height: 32px;
  }
  .inner-section .product .p_item .right ul li .i_title {
    font-size: 14px;
    line-height: 20px;
  }
  .inner-section .product .p_item .right ul li .i_text {
    font-size: 12px;
    line-height: 17px;
  }
  .inner-section .product .p_item .right ul li .i_line {
    width: 40px;
    height: 4px;
  }
  .inner-section .product .video-box {
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
  }
  .inner-section .product .video-box .three-card {
    width: 100%;
  }
  .inner-section .product .video-box .three-card:nth-child(2n) {
    margin-left: 0;
    margin-right: 0;
  }
  .inner-section .product .video-box .video-box-button {
    margin-bottom: 30px;
  }
  .inner-section .product .contact_us {
    width: 100vw;
    padding: 30px 0;
  }
  .inner-section .product .contact_us .contact_us_content {
    width: calc(100% - 40px);
    margin: 0 auto;
  }
  .inner-section .product .contact_us .contact_us_content .left {
    float: none;
  }
  .inner-section .product .contact_us .contact_us_content .left .title {
    padding: 0;
    font-size: 22px;
    line-height: 34px;
    text-align: center;
  }
  .inner-section .product .contact_us .contact_us_content .left .title br {
    display: block;
  }
  .inner-section .product .contact_us .contact_us_content .left .text {
    margin-top: 5px;
    font-size: 14px;
    text-align: center;
  }
  .inner-section .product .contact_us .contact_us_content .right {
    float: none;
    display: table;
    margin: 0 auto;
  }
  .inner-section .product .contact_us .contact_us_content .right a .bottom_button {
    width: 130px;
    height: 30px;
    margin-top: 20px;
    line-height: 30px;
    font-size: 14px;
    padding: 0 12px;
  }
  .inner-section .product .contact_us .contact_us_content .right a span {
    right: 10px;
  }
}