.periodic {
  width: 100%;
  height: auto;
  padding: 67px 0 120px;
}

.periodic .periodic_content {
  width: 100%;
  height: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.periodic .periodic_content .chuangcuhei {
  color: #111;
  text-align: center;
  font-size: 42px;
  font-style: normal;
  font-weight: 400;
  line-height: 50px;
  /* 119.048% */
}

.periodic .periodic_content .chuangcuhei span {
  font-size: 33px;
  font-weight: 500;
}

.periodic .periodic_content .page_c_tab_box {
  margin-top: 14px;
  width: 660px;
  height: 60px;
  border-radius: 4px;
  border: 1px solid #A4A4A4;
  border-right: none;
  display: flex;
  flex-direction: row;
  align-items: center;
}

.periodic .periodic_content .page_c_tab_box .tab_item {
  border-right: 1px solid #A4A4A4;
  width: 50%;
  height: 100%;
  border-radius: 4px;
  cursor: pointer;
  color: #666;
  text-align: center;
  font-size: 26px;
  font-style: normal;
  font-weight: 400;
  line-height: 32px;
  /* 123.077% */
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
}

.periodic .periodic_content .page_c_tab_box .tab_item.active {
  color: #fff;
  background: #E60012;
  border-color: #E60012;
}

.periodic .periodic_content .periodic_box {
  width: 100%;
  height: auto;
  margin-top: 60px;
}

.periodic .periodic_content .periodic_box .per_filter_box {
  width: 100%;
  height: auto;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}

.periodic .periodic_content .periodic_box .per_filter_box .filter_box {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 24px;
}

.periodic .periodic_content .periodic_box .per_filter_box .filter_box .filter_item {
  width: 240px;
  height: 60px;
  border-radius: 4px;
  background: #F9F9F9;
  position: relative;
}

.periodic .periodic_content .periodic_box .per_filter_box .filter_box .filter_item img {
  width: 14px;
  height: 14px;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  right: 24px;
}

.periodic .periodic_content .periodic_box .per_filter_box .filter_box .filter_item select {
  width: 100%;
  height: 100%;
  appearance: none;
  outline: none;
  border: none;
  background: transparent;
  padding: 0 38px 0 24px;
  color: #111;
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 26px;
  /* 162.5% */
}

.periodic .periodic_content .periodic_box .per_filter_box .filter_box .filter_search {
  width: 360px;
  height: 60px;
  border-radius: 4px;
  background: #F9F9F9;
  position: relative;
}

.periodic .periodic_content .periodic_box .per_filter_box .filter_box .filter_search input {
  width: 100%;
  height: 100%;
  border: none;
  outline: none;
  background: transparent;
  padding: 0 108px 0 24px;
  color: #111;
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 26px;
  /* 162.5% */
}

.periodic .periodic_content .periodic_box .per_filter_box .filter_box .filter_search button {
  width: 84px;
  height: 48px;
  border: none;
  outline: none;
  background: #E60012;
  border-radius: 4px;
  color: #fff;
  text-align: center;
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 48px;
  /* 162.5% */
  cursor: pointer;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  right: 17px;
}

.periodic .periodic_content .periodic_box .per_filter_box .total_num {
  color: #666;
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 26px;
  /* 162.5% */
}

.periodic .periodic_content .periodic_results {
  width: 100%;
  height: auto;
  margin-top: 40px;
}

.periodic .periodic_content .periodic_results .results_box {
  width: 100%;
  height: auto;
}

.periodic .periodic_content .periodic_results .results_box .news_item {
  width: 100%;
  height: auto;
  padding: 26px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}

.periodic .periodic_content .periodic_results .results_box .news_item:hover .item_left .item_title {
  color: #E60012;
  text-decoration-line: underline;
}

.periodic .periodic_content .periodic_results .results_box .news_item:first-child {
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.periodic .periodic_content .periodic_results .results_box .news_item .item_left {
  width: 80%;
  height: auto;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.periodic .periodic_content .periodic_results .results_box .news_item .item_left .item_date {
  color: #666;
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 24px;
  /* 142.857% */
}

.periodic .periodic_content .periodic_results .results_box .news_item .item_left .item_title {
  color: #111;
  font-size: 18px;
  font-style: normal;
  font-weight: 400;
  line-height: 24px;
  /* 133.333% */
}

.periodic .periodic_content .periodic_results .results_box .news_item .item_right a {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 8px;
}

.periodic .periodic_content .periodic_results .results_box .news_item .item_right a span {
  color: #666;
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 24px;
  /* 150% */
}

.periodic .periodic_content .periodic_results .results_box .news_item .item_right a img {
  width: 14px;
  height: 14px;
  transform: rotate(-90deg);
}

.pagebox {
  display: flex;
  flex-direction: row;
  justify-content: center;
  margin-top: 40px;
}

.spage-number button {
  border-radius: 2px;
  width: 40px;
  height: 40px;
  padding: 0;
  margin: 0 4px;
  border: none;
  background: transparent;
  line-height: 40px;
  font-size: 14px;
  text-align: center;
  color: #111;
}

.spage-number button:hover {
  background: #E60012;
  color: #FFFFFF;
}

.spage-number button:first-child {
  margin-right: 40px;
  border-radius: 2px;
  border: 1px solid #BBB;
  background: rgba(255, 255, 255, 0);
  width: 40px;
  height: 40px;
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
}

.spage-number button:first-child img {
  width: 8px;
  height: 11px;
}

.spage-number button:last-child {
  margin-left: 40px;
  border-radius: 2px;
  border: 1px solid #BBB;
  background: rgba(255, 255, 255, 0);
  width: 40px;
  height: 40px;
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
}

.spage-number button:last-child img {
  width: 8px;
  height: 11px;
}

.spage-number button.active {
  background: #E60012;
  color: #FFFFFF;
}

.spage-number button.active:hover {
  background: #E60012;
  color: #FFFFFF;
}

@media screen and (max-width: 1440px) {
  .periodic {
    width: 100%;
    height: auto;
    padding: 3.95486vw 0 7.08333vw;
  }
  .periodic .periodic_content {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .periodic .periodic_content .chuangcuhei {
    color: #111;
    text-align: center;
    font-size: 2.47917vw;
    font-style: normal;
    font-weight: 400;
    line-height: 2.95139vw;
    /* 119.048% */
  }
  .periodic .periodic_content .chuangcuhei span {
    font-size: 1.94792vw;
    font-weight: 500;
  }
  .periodic .periodic_content .page_c_tab_box {
    margin-top: 0.82639vw;
    width: 38.95833vw;
    height: 3.54167vw;
    border-radius: 0.23611vw;
    border: 0.05903vw solid #A4A4A4;
    border-right: none;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .periodic .periodic_content .page_c_tab_box .tab_item {
    border-right: 0.05903vw solid #A4A4A4;
    width: 50%;
    height: 100%;
    border-radius: 0.23611vw;
    cursor: pointer;
    color: #666;
    text-align: center;
    font-size: 1.53472vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.88889vw;
    /* 123.077% */
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
  }
  .periodic .periodic_content .page_c_tab_box .tab_item.active {
    color: #fff;
    background: #E60012;
    border-color: #E60012;
  }
  .periodic .periodic_content .periodic_box {
    width: 100%;
    height: auto;
    margin-top: 3.54167vw;
  }
  .periodic .periodic_content .periodic_box .per_filter_box {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .periodic .periodic_content .periodic_box .per_filter_box .filter_box {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 1.41667vw;
  }
  .periodic .periodic_content .periodic_box .per_filter_box .filter_box .filter_item {
    width: 14.16667vw;
    height: 3.54167vw;
    border-radius: 0.23611vw;
    background: #F9F9F9;
    position: relative;
  }
  .periodic .periodic_content .periodic_box .per_filter_box .filter_box .filter_item img {
    width: 0.82639vw;
    height: 0.82639vw;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    right: 1.41667vw;
  }
  .periodic .periodic_content .periodic_box .per_filter_box .filter_box .filter_item select {
    width: 100%;
    height: 100%;
    appearance: none;
    outline: none;
    border: none;
    background: transparent;
    padding: 0 2.24306vw 0 1.41667vw;
    color: #111;
    font-size: 0.94444vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.53472vw;
    /* 162.5% */
  }
  .periodic .periodic_content .periodic_box .per_filter_box .filter_box .filter_search {
    width: 21.25vw;
    height: 3.54167vw;
    border-radius: 0.23611vw;
    background: #F9F9F9;
    position: relative;
  }
  .periodic .periodic_content .periodic_box .per_filter_box .filter_box .filter_search input {
    width: 100%;
    height: 100%;
    border: none;
    outline: none;
    background: transparent;
    padding: 0 6.375vw 0 1.41667vw;
    color: #111;
    font-size: 0.94444vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.53472vw;
    /* 162.5% */
  }
  .periodic .periodic_content .periodic_box .per_filter_box .filter_box .filter_search button {
    width: 4.95833vw;
    height: 2.83333vw;
    border: none;
    outline: none;
    background: #E60012;
    border-radius: 0.23611vw;
    color: #fff;
    text-align: center;
    font-size: 0.94444vw;
    font-style: normal;
    font-weight: 400;
    line-height: 2.83333vw;
    /* 162.5% */
    cursor: pointer;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    right: 1.00347vw;
  }
  .periodic .periodic_content .periodic_box .per_filter_box .total_num {
    color: #666;
    font-size: 0.94444vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.53472vw;
    /* 162.5% */
  }
  .periodic .periodic_content .periodic_results {
    width: 100%;
    height: auto;
    margin-top: 2.36111vw;
  }
  .periodic .periodic_content .periodic_results .results_box {
    width: 100%;
    height: auto;
  }
  .periodic .periodic_content .periodic_results .results_box .news_item {
    width: 100%;
    height: auto;
    padding: 1.53472vw;
    border-bottom: 0.05903vw solid rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .periodic .periodic_content .periodic_results .results_box .news_item:hover .item_left .item_title {
    color: #E60012;
    text-decoration-line: underline;
  }
  .periodic .periodic_content .periodic_results .results_box .news_item:first-child {
    border-top: 0.05903vw solid rgba(0, 0, 0, 0.1);
  }
  .periodic .periodic_content .periodic_results .results_box .news_item .item_left {
    width: 80%;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.70833vw;
  }
  .periodic .periodic_content .periodic_results .results_box .news_item .item_left .item_date {
    color: #666;
    font-size: 0.94444vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.41667vw;
    /* 142.857% */
  }
  .periodic .periodic_content .periodic_results .results_box .news_item .item_left .item_title {
    color: #111;
    font-size: 1.0625vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.41667vw;
    /* 133.333% */
  }
  .periodic .periodic_content .periodic_results .results_box .news_item .item_right a {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.47222vw;
  }
  .periodic .periodic_content .periodic_results .results_box .news_item .item_right a span {
    color: #666;
    font-size: 0.94444vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.41667vw;
    /* 150% */
  }
  .periodic .periodic_content .periodic_results .results_box .news_item .item_right a img {
    width: 0.82639vw;
    height: 0.82639vw;
    transform: rotate(-90deg);
  }
  .pagebox {
    display: flex;
    flex-direction: row;
    justify-content: center;
    margin-top: 2.36111vw;
  }
  .spage-number button {
    border-radius: 0.11806vw;
    width: 2.36111vw;
    height: 2.36111vw;
    padding: 0;
    margin: 0 0.23611vw;
    border: none;
    background: transparent;
    line-height: 2.36111vw;
    font-size: 0.82639vw;
    text-align: center;
    color: #111;
  }
  .spage-number button:hover {
    background: #E60012;
    color: #FFFFFF;
  }
  .spage-number button:first-child {
    margin-right: 2.36111vw;
    border-radius: 0.11806vw;
    border: 0.05903vw solid #BBB;
    background: rgba(255, 255, 255, 0);
    width: 2.36111vw;
    height: 2.36111vw;
    display: inline-flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
  }
  .spage-number button:first-child img {
    width: 0.47222vw;
    height: 0.64931vw;
  }
  .spage-number button:last-child {
    margin-left: 2.36111vw;
    border-radius: 0.11806vw;
    border: 0.05903vw solid #BBB;
    background: rgba(255, 255, 255, 0);
    width: 2.36111vw;
    height: 2.36111vw;
    display: inline-flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
  }
  .spage-number button:last-child img {
    width: 0.47222vw;
    height: 0.64931vw;
  }
  .spage-number button.active {
    background: #E60012;
    color: #FFFFFF;
  }
  .spage-number button.active:hover {
    background: #E60012;
    color: #FFFFFF;
  }
}

@media screen and (max-width: 1024px) {
  .periodic {
    width: 100%;
    height: auto;
    padding: 10.66667vw 0 10.66667vw;
  }
  .periodic .periodic_content {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .periodic .periodic_content .column-title {
    margin-bottom: 5.66667vw;
  }
  .periodic .periodic_content .column-title::after {
    margin-top: 0;
  }
  .periodic .periodic_content .chuangcuhei {
    font-size: 7.46667vw;
    line-height: 1.2;
    margin-top: 0;
    margin-bottom: 0;
    padding-bottom: 2.66667vw;
    height: 9.6vw;
  }
  .periodic .periodic_content .chuangcuhei span {
    font-size: 6vw;
    font-weight: 500;
  }
  .periodic .periodic_content .page_c_tab_box {
    margin-top: 1.86667vw;
    width: 92vw;
    height: 10.66667vw;
    border-radius: 1.06667vw;
    border: 0.26667vw solid #A4A4A4;
    border-right: none;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .periodic .periodic_content .page_c_tab_box .tab_item {
    border-right: 0.26667vw solid #A4A4A4;
    width: auto;
    flex: 1;
    height: 100%;
    border-radius: 1.06667vw;
    cursor: pointer;
    color: #666;
    text-align: center;
    font-size: 4.26667vw;
    font-style: normal;
    font-weight: 400;
    line-height: 4.26667vw;
    /* 123.077% */
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
  }
  .periodic .periodic_content .page_c_tab_box .tab_item.active {
    color: #fff;
    background: #E60012;
    border-color: #E60012;
  }
  .periodic .periodic_content .periodic_box {
    width: 100%;
    height: auto;
    margin-top: 8.53333vw;
  }
  .periodic .periodic_content .periodic_box .per_filter_box {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: inherit;
    gap: 3.2vw;
  }
  .periodic .periodic_content .periodic_box .per_filter_box .filter_box {
    width: 100%;
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    align-items: center;
    gap: 3.2vw;
  }
  .periodic .periodic_content .periodic_box .per_filter_box .filter_box .filter_item {
    width: 100%;
    height: 10.66667vw;
    border-radius: 1.06667vw;
    background: #F9F9F9;
    position: relative;
  }
  .periodic .periodic_content .periodic_box .per_filter_box .filter_box .filter_item img {
    width: 3.73333vw;
    height: 3.73333vw;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    right: 3.2vw;
  }
  .periodic .periodic_content .periodic_box .per_filter_box .filter_box .filter_item select {
    width: 100%;
    height: 100%;
    appearance: none;
    outline: none;
    border: none;
    background: transparent;
    padding: 0 6.66667vw 0 3.2vw;
    color: #111;
    font-size: 3.2vw;
    font-style: normal;
    font-weight: 400;
    line-height: 3.2vw;
    /* 162.5% */
  }
  .periodic .periodic_content .periodic_box .per_filter_box .filter_box .filter_search {
    width: 100%;
    height: 10.66667vw;
    border-radius: 1.06667vw;
    background: #F9F9F9;
    position: relative;
  }
  .periodic .periodic_content .periodic_box .per_filter_box .filter_box .filter_search input {
    width: 100%;
    height: 100%;
    border: none;
    outline: none;
    background: transparent;
    padding: 0 14.4vw 0 3.2vw;
    color: #111;
    font-size: 3.2vw;
    font-style: normal;
    font-weight: 400;
    line-height: 4.26667vw;
    /* 162.5% */
  }
  .periodic .periodic_content .periodic_box .per_filter_box .filter_box .filter_search button {
    width: 16vw;
    height: 9.86667vw;
    border: none;
    outline: none;
    background: #E60012;
    border-radius: 1.06667vw;
    color: #fff;
    text-align: center;
    font-size: 3.2vw;
    font-style: normal;
    font-weight: 400;
    line-height: 10.13333vw;
    /* 162.5% */
    cursor: pointer;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    right: 2.26667vw;
  }
  .periodic .periodic_content .periodic_box .per_filter_box .total_num {
    color: #666;
    font-size: 3.2vw;
    font-style: normal;
    font-weight: 400;
    line-height: 3.46667vw;
    /* 162.5% */
  }
  .periodic .periodic_content .periodic_results {
    width: 100%;
    height: auto;
    margin-top: 8.53333vw;
  }
  .periodic .periodic_content .periodic_results .results_box {
    width: 100%;
    height: auto;
  }
  .periodic .periodic_content .periodic_results .results_box .news_item {
    width: 100%;
    height: auto;
    padding: 3.46667vw;
    border-bottom: 0.13333vw solid rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: inherit;
    gap: 2.66667vw;
  }
  .periodic .periodic_content .periodic_results .results_box .news_item:hover .item_left .item_title {
    color: #E60012;
    text-decoration-line: underline;
  }
  .periodic .periodic_content .periodic_results .results_box .news_item:first-child {
    border-top: 0.13333vw solid rgba(0, 0, 0, 0.1);
  }
  .periodic .periodic_content .periodic_results .results_box .news_item .item_left {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.6vw;
  }
  .periodic .periodic_content .periodic_results .results_box .news_item .item_left .item_date {
    color: #666;
    font-size: 3.2vw;
    font-style: normal;
    font-weight: 400;
    line-height: 3.2vw;
    /* 142.857% */
  }
  .periodic .periodic_content .periodic_results .results_box .news_item .item_left .item_title {
    color: #111;
    font-size: 3.73333vw;
    font-style: normal;
    font-weight: 400;
    line-height: 1.333;
    /* 133.333% */
  }
  .periodic .periodic_content .periodic_results .results_box .news_item .item_right a {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 1.06667vw;
  }
  .periodic .periodic_content .periodic_results .results_box .news_item .item_right a span {
    color: #666;
    font-size: 3.2vw;
    font-style: normal;
    font-weight: 400;
    line-height: 3.2vw;
    /* 150% */
  }
  .periodic .periodic_content .periodic_results .results_box .news_item .item_right a img {
    width: 3.2vw;
    height: 3.2vw;
    transform: rotate(-90deg);
  }
  .pagebox {
    display: flex;
    flex-direction: row;
    justify-content: center;
    margin-top: 5.33333vw;
  }
  .spage-number button {
    border-radius: 0.26667vw;
    width: 8vw;
    height: 8vw;
    padding: 0;
    margin: 0 0.53333vw;
    border: none;
    background: transparent;
    line-height: 8vw;
    font-size: 3.73333vw;
    text-align: center;
    color: #111;
  }
  .spage-number button:hover {
    background: #E60012;
    color: #FFFFFF;
  }
  .spage-number button:first-child {
    margin-right: 5.33333vw;
    border-radius: 0.26667vw;
    border: 0.13333vw solid #BBB;
    background: rgba(255, 255, 255, 0);
    width: 8vw;
    height: 8vw;
    display: none;
    flex-direction: row;
    align-items: center;
    justify-content: center;
  }
  .spage-number button:first-child img {
    width: 1.06667vw;
    height: 1.46667vw;
  }
  .spage-number button:last-child {
    margin-left: 5.33333vw;
    border-radius: 0.26667vw;
    border: 0.13333vw solid #BBB;
    background: rgba(255, 255, 255, 0);
    width: 8vw;
    height: 8vw;
    display: none;
    flex-direction: row;
    align-items: center;
    justify-content: center;
  }
  .spage-number button:last-child img {
    width: 1.06667vw;
    height: 1.46667vw;
  }
  .spage-number button.active {
    background: #E60012;
    color: #FFFFFF;
  }
  .spage-number button.active:hover {
    background: #E60012;
    color: #FFFFFF;
  }
}