/* 首页专属样式 */

/* ==================== 全局：克制的过渡 ==================== */
.svc-item,
.news-list li,
.research-grid figure,
.journal-grid figure,
.brief-grid figure,
.full-img img,
.tab-bar .tab,
.block-title::before,
.block-title::after {
  transition: all .25s ease;
}

/* banner 轮播 */
.banner { margin-top: 55px; }
.banner-slider {
  position: relative;
  overflow: hidden;
  touch-action: pan-y;
}
.slide {
  position: relative;
  display: none;
  animation: slideIn .4s ease;
}
.slide1 {
  position: relative;
  display: none;
  animation: slideIn .4s ease;
}
.slide2 {
  position: relative;
  display: none;
  animation: slideIn .4s ease;
}
.slide.active { display: block; }
.slide1.active { display: block; }
.slide2.active { display: block; }
.slide2 img { width: 100%; height: 100px; object-fit: cover; }
.slide1 img { width: 100%; height: 245px; object-fit: cover; }
.slide img { width: 100%; height: 450px; object-fit: cover; }

/* 轮播切换淡入 */
@keyframes slideIn {
  from { opacity: 0; transform: scale(1.02); }
  to   { opacity: 1; transform: scale(1); }
}

/* 首页 banner 轮播标题条（白色标题浮于底部渐变条上） */
.banner-slide-title {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 7px 44px 7px 12px;
  background: linear-gradient(180deg, rgba(8, 53, 92, 0), rgba(8, 53, 92, .6));
  color: #fff;
  font-size: 13px;
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 首页 banner 指示点（浮于图右下角，白色系） */
.banner .banner-dots {
  position: absolute;
  right: 12px;
  bottom: 11px;
  display: flex;
  gap: 6px;
  z-index: 2;
}
.banner .banner-dot { background: rgba(255, 255, 255, .55); }
.banner .banner-dot.active { background: #fff; }

/* 重要新闻 4 图轮播 */
.news-carousel { margin: 0 12px; position: relative; }
.news-slides {
  position: relative;
  overflow: hidden;
  touch-action: pan-y;
}
.news-carousel .slide {
  position: relative;
  display: none;
  animation: slideIn .4s ease;
}
.news-carousel .slide.active { display: block; }
.news-carousel .slide img { width: 100%; border-radius: 4px; }
.news-slide-title {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 8px 12px;
  background: rgba(0, 0, 0, .5);
  color: #fff;
  font-size: 13px;
  line-height: 1.5;
  border-radius: 0 0 4px 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.news-dots {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: 8px;
}
.banner-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #C9D6E8;
  cursor: pointer;
}
.banner-dot.active { background: var(--blue); }

/* ==================== 列表项：hover 左侧色条 + 背景 ==================== */
.news-list li {
  cursor: pointer;
  position: relative;
}
.news-list li:hover,
.news-list li:active {
  background: #F5F8FC;
  box-shadow: -3px 0 0 0 var(--blue) inset;
}
.news-list li:hover .t,
.news-list li:hover .d {
  color: var(--blue);
}

/* ==================== 查看更多：hover 下划线（右对齐） ==================== */
.more-link {
  position: relative;
  display: block;
  text-align: right;
  padding: 14px 15px 10px 0;
  color: var(--blue-deep);
  font-size: var(--fs-small);
}
.more-link::after {
  content: '';
  position: absolute;
  left: auto;
  right: 15px;
  bottom: 8px;
  width: 0;
  height: 2px;
  background: var(--blue);
  transition: width .25s ease, right .25s ease;
}
.more-link:hover::after {
  width: 60px;
  right: 15px;
}

/* ==================== 服务连接卡片：hover 上浮 + 阴影 ==================== */
.svc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  padding: 0 12.5px 14px;
  background: #fff;
  margin-top: 10px;
}
.svc-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-direction: column;
  background: #fff;
  border: 1px solid #C6DFF6;
  padding: 14px 8px;
  min-height: 64px;
  font-size: 13px;
  color: var(--text-2);
  border-radius: 6px;
  cursor: pointer;
}
.svc-item:hover,
.svc-item:active {
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(15, 74, 151, .12);
  border-color: var(--blue);
  color: var(--blue);
}
.svc-item img {
  width: 28px; height: 28px;
  object-fit: contain;
  flex: 0 0 auto;
  transition: transform .25s ease;
}
.svc-item:hover img {
  transform: scale(1.1);
}
.svc-item span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* 党建横幅 */
.party-banner { overflow: hidden; border-radius: 4px; margin: 0 12px; }
.party-banner img { width: 100%; }

/* 全宽图（国际合作、专家协会：上下一张） */
.full-img { padding: 0 12px; }
.full-img img {
  width: 100%;
  display: block;
  margin-bottom: 8px;
  border-radius: 4px;
}

/* ==================== 期刊/简报：hover 轻微放大 ==================== */
.journal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding: 0 12px;
}
.journal-grid figure,
.brief-grid figure {
  text-align: center;
  cursor: pointer;
}
.journal-grid img,
.brief-grid img {
  width: 100%;
  height: auto;
  border: 1px solid #E8E8E8;
  border-radius: 4px;
  transition: transform .25s ease, box-shadow .25s ease;
}
.journal-grid figure:hover img,
.brief-grid figure:hover img {
  transform: scale(1.02);
  box-shadow: 0 4px 10px rgba(0,0,0,.1);
}
.journal-grid figcaption,
.brief-grid figcaption {
  font-size: 13px;
  color: var(--text-2);
  margin-top: 6px;
  line-height: 1.5;
}
.journal-grid figure:hover figcaption,
.brief-grid figure:hover figcaption { color: var(--blue); }

/* 简报 2 列 */
.brief-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding: 12px 12px 0;
}

/* ==================== 科学研究卡片：hover 阴影 ==================== */
.research-grid { padding: 0 12px; }
.research-grid figure {
  margin-bottom: 12px;
  cursor: pointer;
  border-radius: 4px;
  overflow: hidden;
}
.research-grid img { width: 100%; border-radius: 4px; transition: transform .25s ease, box-shadow .25s ease; }
.research-grid figcaption {
  text-align: center;
  margin-top: 6px;
  font-size: 15px;
  color: var(--blue-deep);
  font-weight: bold;
}
.research-grid figcaption a { color: var(--blue-deep); }
.research-grid figure:hover img {
  transform: scale(1.02);
  box-shadow: 0 4px 12px rgba(0,0,0,.12);
}
.research-grid figure:hover figcaption { color: var(--blue); }

/* tab 栏 */
.tab-bar {
  display: flex;
  background: #F2F6FB;
  margin: 0 12px;
  border-radius: 4px;
  overflow: hidden;
}
.tab-bar .tab {
  flex: 1;
  text-align: center;
  padding: 8px 2px;
  font-size: 13px;
  color: var(--text-2);
  cursor: pointer;
}
.tab-bar .tab:hover { background: #E8EFF9; color: var(--blue); }
.tab-bar .tab.active { background: var(--blue); color: #fff; font-weight: bold; }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: tabFadeIn .35s ease; }

/* tab 内容淡入（轻微） */
@keyframes tabFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ==================== 区块标题 hover：装饰线变长 ==================== */
.block-title { cursor: default; }
.block-title:hover::before,
.block-title:hover::after { width: 30px; }

/* ==================== 滚动渐入动画 ==================== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .6s ease, transform .6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}