/* ============================================================
   响应式样式 - webmedia.css
   前缀: iet_
   描述: 中科院工程热物理研究所70周年专题网站响应式样式
   ============================================================ */

/* ============================================================
   >=1680px - 大屏优化
   ============================================================ */
@media (min-width: 1680px) {
  .iet_container {
    width: 1400px;
  }

  .iet_banner_top {
    width: 1400px;
  }

  .iet_speech_img {
    width: 320px;
  }
}

/* ============================================================
   >=1200px and <1400px - 标准桌面
   ============================================================ */
@media (min-width: 1200px) and (max-width: 1399px) {
  .iet_container {
    width: 1140px;
  }

  .iet_banner_top {
    width: 1140px;
  }

  .iet_speech_img {
    width: 240px;
  }

  .iet_speech_box {
    padding: 20px 25px;
  }

  .iet_speech_text {
    font-size: 16px;
  }

  .iet_news_card_img {
    width: 220px;
    min-height: 120px;
  }

  .iet_identity_logo {
    width: 150px;
    height: 150px;
  }

  .iet_identity_70th {
    width: 120px;
    height: 120px;
  }
}

/* ============================================================
   >=768px and <1200px - 平板设备
   ============================================================ */
@media (min-width: 768px) and (max-width: 1199px) {
  .iet_container {
    width: 100%;
    padding: 0 30px;
  }

  .iet_col_left {
    width: 60%;
  }

  .iet_col_right {
    width: 40%;
  }

  .iet_speech_img {
    width: 200px;
    margin-right: 18px;
  }

  .iet_speech_box {
    padding: 18px 20px;
  }

  .iet_speech_text {
    font-size: 15px;
    line-height: 1.7;
  }

  .iet_col_half {
    width: 50%;
  }

  .iet_news_card_img {
    width: 200px;
    min-height: 100px;
  }

  .iet_news_card_title {
    font-size: 15px;
  }

  .iet_news_card_summary {
    font-size: 13px;
  }

  .iet_identity_logo {
    width: 140px;
    height: 140px;
  }

  .iet_identity_70th {
    width: 110px;
    height: 110px;
  }

  .iet_identity_slide_inner {
    min-height: 240px;
  }

  .iet_history_slide_title {
    font-size: 15px;
  }

  .iet_footer {
    font-size: 14px;
    padding: 25px 20px;
  }

  .iet_news_list_title {
    font-size: 16px;
  }

  .iet_detail_content {
    padding: 30px 35px;
  }

  .iet_detail_title {
    font-size: 24px;
  }

  .iet_detail_body {
    font-size: 16px;
  }
}

/* ============================================================
   <768px - 手机设备
   ============================================================ */
@media (max-width: 767px) {
  .iet_container {
    width: 100%;
    padding: 0 15px;
  }

  .iet_banner img {
    height: 200px;
    object-fit: cover;
  }

  .iet_main_content {
    padding: 25px 0;
  }

  .iet_main_content::before {
    width: 250px;
    height: 250px;
  }
  .iet_main_content.iet_logo_tl::before,
  .iet_main_content.iet_logo_br::before {
    width: 120px;
    height: 120px;
  }
  .iet_speech_box::after,
  .iet_notice_box::after,
  .iet_blessing_box::after,
  .iet_identity_box::after,
  .iet_news_card::after {
    width: 50px;
    height: 50px;
  }

  .iet_col_left,
  .iet_col_right,
  .iet_col_half {
    width: 100%;
    margin-bottom: 25px;
  }

  .iet_col_left:last-child,
  .iet_col_right:last-child,
  .iet_col_half:last-child {
    margin-bottom: 0;
  }

  .iet_col_left,
  .iet_col_right,
  .iet_col_half {
    display: block;
  }

  .iet_speech_box {
    min-height: auto;
    padding: 15px;
  }

  .iet_speech_img {
    float: none;
    width: 100%;
    max-width: 300px;
    margin: 0 auto 15px;
  }

  .iet_speech_text {
    font-size: 15px;
    line-height: 1.7;
  }

  .iet_notice_box {
    padding: 5px 15px;
  }
  .iet_news_card{
    flex-wrap: wrap;
  }
  .iet_news_card_img {
    width: 100%;
    min-height: 110px;
  }

  .iet_news_card_title {
    font-size: 15px;
  }

  .iet_news_card_summary {
    font-size: 13px;
  }

  .iet_blessing_box {
    padding: 10px 15px;
  }

  .iet_blessing_scroll {
    height: 240px;
  }

  .iet_blessing_content {
    font-size: 15px;
  }

  .iet_identity_box {
    padding: 25px 15px;
  }

  .iet_identity_slide_inner {
    min-height: 220px;
  }

  .iet_identity_logo {
    width: 150px;
    height: 150px;
  }

  .iet_identity_70th {
    width: 120px;
    height: 120px;
  }

  .iet_history_slide_title {
    font-size: 14px;
  }

  .iet_history_nav_wrap .swiper-button-prev,
  .iet_history_nav_wrap .swiper-button-next {
    display: none;
  }

  .iet_list_title {
    font-size: 15px;
  }

  .iet_list_date {
    font-size: 13px;
  }

  .iet_footer {
    padding: 20px 15px;
    font-size: 13px;
    line-height: 1.8;
  }

  .iet_footer_divider {
    display: block;
    height: 0;
    overflow: hidden;
    margin: 0;
  }

  .iet_news_list {
    padding: 0;
  }

  .iet_news_list_item {
    flex-direction: column;
    align-items: flex-start;
    padding: 14px 15px;
    margin-bottom: 8px;
  }

  .iet_news_list_item:hover {
    transform: none;
  }

  .iet_news_list_date {
    margin-right: 0;
    margin-bottom: 10px;
    min-width: auto;
    align-self: flex-start;
  }

  .iet_news_list_title {
    font-size: 15px;
    white-space: normal;
  }

  .iet_pagination_box a {
    padding: 5px 12px;
    font-size: 13px;
  }

  .iet_pagination_box {
    display: none;
  }

  .iet_load_more_wrap {
    display: block;
  }

  .iet_detail_content {
    padding: 25px 20px;
    border-radius: 6px;
  }

  .iet_detail_title {
    font-size: 22px;
  }

  .iet_detail_subtitle {
    font-size: 16px;
  }

  .iet_detail_meta {
    font-size: 13px;
    gap: 10px;
  }

  .iet_detail_body {
    font-size: 16px;
    line-height: 1.8;
  }

  .iet_detail_page_nav {
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
    font-size: 14px;
  }

  .iet_detail_page_nav a {
    max-width: 100%;
  }
}

/* ============================================================
   <480px - 小屏手机
   ============================================================ */
@media (max-width: 479px) {
  .iet_banner img {
    height: 160px;
  }

  .iet_banner_home_link {
    font-size: 12px;
    padding: 4px 10px;
    top: 8px;
    right: 8px;
  }

  .iet_module_title {
    font-size: 20px;
  }

  .iet_module_title_img {
    width: 26px;
    height: 26px;
    margin-right: 8px;
  }

  .iet_module_more {
    font-size: 13px;
  }

  .iet_speech_text {
    font-size: 14px;
  }

  .iet_news_card_img {
    width: 90px;
    min-height: 90px;
  }

  .iet_news_card_title {
    font-size: 14px;
  }

  .iet_news_card_summary {
    font-size: 12px;
    -webkit-line-clamp: 2;
  }

  .iet_blessing_scroll {
    height: 200px;
  }

  .iet_list_page_title {
    font-size: 20px;
  }

  .iet_list_page_title .iet_module_title_img {
    width: 26px;
    height: 26px;
  }

  .iet_news_list_date {
    font-size: 12px;
    padding: 2px 8px;
  }

  .iet_news_list_title {
    font-size: 14px;
  }

  .iet_breadcrumb_inner {
    font-size: 15px;
  }

  .iet_detail_content {
    padding: 18px 15px;
  }

  .iet_detail_title {
    font-size: 20px;
  }

  .iet_detail_body {
    font-size: 15px;
    line-height: 1.75;
  }
}