@media screen and (min-width: 768px) {
  #product_item_top_html {
  }
}

@media screen and (min-width: 768px) {
  .product_mian_bao_xie .product_title {
    flex: 1;
  }
}

@media screen and (min-width: 768px) {
  .product_mian_bao_xie .product_menu {
    width: 130px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
}

@media screen and (min-width: 768px) {
  .product_mian_bao_xie .product_menu > a {
    color: white;
    font-size: large;
    transition: all .5s;
    -moz-transition: all .5s;
    -webkit-transition: all .5s;
    -o-transition: all .5s;
  }
}

.product_mian_bao_xie .product_menu > a.product_zixun {
  color: #EE7700;
}

@media screen and (min-width: 768px) {
  .product_mian_bao_xie .product_menu > a:hover {
    color: #EE7700;
  }
}

@media screen and (min-width: 768px) {
  .product_mian_bao_xie .product_menu > a.product_zixun:hover {
    color: tomato;
  }
}

@media screen and (min-width: 768px) {
  .product_video_body {
    position: relative;
    background-color: #000;
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
  }
}

@media screen and (min-width: 768px) {
  .product_video_body video {
    width: 100%;
    display: block;
  }
}

@media screen and (min-width: 768px) {
  .product_video_body .play {
    cursor: pointer;
    z-index: 1;
    position: absolute;
    top: calc(50% - 74px);
    left: calc(50% - 120px);
  }
}

#product_item_gui_ge_can_shu, #product_item_zi_liao_xia_zai {
  font-size: 1.35rem;
  font-weight: bold;
  color: #000000;
  text-align: center;
  padding-top: 2rem;
  margin-bottom: 1rem;
}

@media screen and (min-width: 768px) {
  #product_item_gui_ge_can_shu, #product_item_zi_liao_xia_zai {
    font-size: 32px;
    font-weight: bold;
    color: #000000;
    text-align: center;
    padding-top: 50px;
    margin-bottom: 20px;
  }
}

@media (min-width: 1200px) {
  #product_item_gui_ge_can_shu, #product_item_zi_liao_xia_zai {
    font-size: 36px;
    font-weight: bold;
    text-align: center;
    padding-top: 70px;
    margin-bottom: 20px;
  }
}

.product_item_gui_ge_can_shu_block {
  line-height: 3.5rem;
  background: #F2F2F2;
  font-weight: bold;
  font-size: 1.1rem;
  text-align: center;
}

@media screen and (min-width: 768px) {
  .product_item_gui_ge_can_shu_block {
    line-height: 100px;
    background: #F2F2F2;
    font-weight: bold;
    font-size: x-large;
    text-align: center;
  }
}

.product_item_gui_ge_can_shu_list_body {
  /*display: flex;*/
  /*align-items: center;*/
  /*justify-content: center;*/
  padding: 0.5rem;
}

@media screen and (min-width: 768px) {
  .product_item_gui_ge_can_shu_list_body {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px 20px;
  }
}

.product_item_gui_ge_can_shu_list > div {
  display: flex;
  width: 100%;
  vertical-align: text-top;
  margin-bottom: 1rem;
}

@media screen and (min-width: 768px) {
  .product_item_gui_ge_can_shu_list {
    width: 1200px;
    min-width: 80vw;
    display: inline-block;
    max-width: 100%;
  }
}

@media screen and (min-width: 768px) {
  .product_item_gui_ge_can_shu_list > div {
    display: inline-block;
    width: 24%;
    margin-bottom: 20px;
    vertical-align: text-top;
    padding-right: 10px;
  }
}

.product_item_gui_ge_can_shu_name {
  font-size: 1rem;
  font-weight: bold;
  word-wrap: break-word;
  word-break: break-all;
  padding-right: 1rem;
  width: 7rem;
}

@media screen and (min-width: 768px) {
  .product_item_gui_ge_can_shu_name {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 0;
    width: auto;
  }
}

.product_item_gui_ge_can_shu_val {
  font-size: 1.1rem;
  word-wrap: break-word;
  word-break: break-all;
  flex: 1;
}

@media screen and (min-width: 768px) {
  .product_item_gui_ge_can_shu_val {
    font-size: calc(0.5rem + 0.5vw);
  }
}

@media screen and (min-width: 768px) {
  .product_item_pei_jian_image {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 300px;
    cursor: pointer;
    overflow: hidden;
  }
}

@media screen and (min-width: 768px) {
  .product_item_pei_jian_image img {
    width: 100%;
    transition: all .5s;
    -moz-transition: all .5s;
    -webkit-transition: all .5s;
    -o-transition: all .5s;
    transform: scale(1);
    -webkit-transform: scale(1);
  }
}

@media screen and (min-width: 768px) {
  .product_item_pei_jian_image:hover img {
    transform: scale(1.2);
    -webkit-transform: scale(1.2);
  }
}

@media screen and (min-width: 768px) {
  .product_item_pei_jian_name {
    font-size: 20px;
    text-align: center;
  }
}

.product_item_xia_zai_list_body {
  text-align: center;
  padding-bottom: 3rem;
}

@media screen and (min-width: 768px) {
  .product_item_xia_zai_list_body {
    text-align: center;
    padding-bottom: 120px;
  }
}

@media screen and (min-width: 768px) {
  .product_item_xia_zai_list {
    max-width: 1200px;
    display: inline-block;
  }
}

.product_item_xia_zai_item {
  width: calc(100% - 1rem);
  padding: 10vw 0.5rem;
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.5);
  border-radius: 1rem;
  text-align: center;
  display: inline-block;
  margin: 0.5rem;
  vertical-align: top;
}

@media screen and (min-width: 768px) {
  .product_item_xia_zai_item {
    width: 340px;
    padding: 25px;
    background: #FFFFFF;
    border: 1px solid rgba(0, 0, 0, 0.5);
    border-radius: 20px;
    text-align: center;
    display: inline-block;
    margin: 10px 20px;
    vertical-align: top;
  }
}

.product_item_xia_zai_item_name {
  font-size: 1.3rem;
  font-weight: 400;
  color: #000000;
  text-overflow: -o-ellipsis-lastline;
}

@media screen and (min-width: 768px) {
  .product_item_xia_zai_item_name {
    font-size: 20px;
    font-weight: 400;
    color: #000000;
    color: #000000;
    line-height: 30px;
    text-overflow: -o-ellipsis-lastline;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    height: 60px;
  }
}

.product_item_xia_zai_item_file_size {
  font-size: 0.6rem;
  font-weight: 400;
  color: #000000;
  margin: 0;
}

@media screen and (min-width: 768px) {
  .product_item_xia_zai_item_file_size {
    font-size: 12px;
    font-weight: 400;
    color: #000000;
    margin: 15px 0;
  }
}

.product_item_xia_zai_item_btn > a {
  width: 40%;
  height: 2rem;
  margin-top: 1rem;
  background: #000;
  color: white !important;
  display: inline-block;
  border-radius: 100px;
  line-height: 2rem;
  cursor: pointer;
  font-size: 0.8rem;
}

@media screen and (min-width: 768px) {
  .product_item_xia_zai_item_btn > a {
    width: 74px;
    height: 38px;
    background: #000;
    color: white !important;
    display: inline-block;
    border-radius: 19px;
    line-height: 38px;
    cursor: pointer;
  }
}

@media screen and (min-width: 768px) {
  .product_item_xia_zai_item_btn {
    text-align: center;
  }
}

@media screen and (min-width: 768px) {
  .product_item_gui_ge_can_shu_list_box {
    transform: translate(-50%, -50%);
    -webkit-transform: translate(-50%, -50%);
  }
}

#product_item_banner_container img {
  width: 100%;
}

.product_video_body.hide {
  display: none;
  overflow-y: hidden;
}

#product_video_body video {
  z-index: 0;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  position: absolute;
}

#product_item_banner_title {
  font-size: x-large;
  font-weight: bold;
}

#product_item_banner_intro {
  font-size: 18px;
  margin-top: 0.3em;
  overflow: hidden;
  text-overflow: ellipsis;
  word-break: break-all;
  overflow: hidden;
  text-overflow: ellipsis;
  word-break: break-all;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

#slide-0-swiper-next {
  right: calc(10px);
  bottom: 20px;
  left: auto;
  top: auto;
  color: #666;
}

#slide-0-swiper-prev {
  right: calc(100px);
  bottom: 20px;
  left: auto;
  top: auto;
  color: #666;
}

.product_hang_ye_ying_yong_banner_txt {
  position: absolute;
  display: flex;
  justify-content: start;
  align-items: center;
  bottom: 0;
  left: 10vw;
  right: calc(10vw + 180px);
  height: 160px;
}

.swiper-pagination {
  right: 0 !important;
  width: 180px !important;
  bottom: 110px !important;
  left: auto !important;
}

#product_item_zi_liao_xia_zai_body {
  display: none;
}

#product_item_banner {
  display: none;
  overflow: hidden;
}

.temp_video_body {
  position: fixed;
  left: 0;
  top: 0;
  right: 0;
  background-color: #000;
  bottom: 0;
  display: none;
  z-index: 9999;
}

.temp_video_body > div {
  position: relative;
  height: 100vh;
}

.temp_video_body video {
  width: 100%;
  height: 100%;
}

#video_close {
  position: absolute;
  right: 20px;
  top: 20px;
  color: white;
}

.top_html_contain {
  position: relative;
}

#play_it {
  position: absolute;
  left: calc(50% - 100px);
  width: 200px;
  height: 200px;
  top: calc(50% - 100px);
  display: none;
  cursor: pointer;
  opacity: 0.8;
}

.blank_80 {
  height: 128px;
}

@media (min-width: 768px) {
  .blank_80 {
    height: 70px;
  }
}

.txt_banner {
  padding: 1em 180px 1em 1em;
}

.product_btns {
  display: flex;
}

.product_title {
  text-align: center;
  padding: 0.5rem 0;
}

.product_menu {
  flex: 1;
  padding: 0.3rem 0;
  text-align: center;
  font-size: 1rem;
}

.product_mian_bao_xie {
  background: #1B1B1B;
  color: white;
  font-size: 1.25rem;
  transition: all .5s;
  position: fixed;
  left: 0;
  top: 50px;
  right: 0;
  -moz-transition: all .5s;
  -webkit-transition: all .5s;
  -o-transition: all .5s;
  z-index: 9;
}

.product_mian_bao_xie.top {
  top: 0;
}

@media screen and (min-width: 768px) {
  .product_mian_bao_xie {
    height: 80px;
    background: #1B1B1B;
    padding: 0 15%;
    color: white;
    font-size: x-large;
    display: flex;
    align-items: center;
    width: 100%;
    transition: all .5s;
    position: fixed;
    left: 0;
    top: 96px;
    right: 0;
    -moz-transition: all .5s;
    -webkit-transition: all .5s;
    -o-transition: all .5s;
    z-index: 9;
  }
}