@charset "utf-8";

/* ==========================================================
   expert-list.css
   模块：专家列表页
   作用：
   1. 控制专家列表页二级Banner；
   2. 控制专家列表栅格、专家卡片、底部信息条、
      悬停详情浮层和响应式布局。
   ========================================================== */

/* ==========================================================
   专家列表页二级Banner
   PC端图片：/banner/eb1.jpg
   移动端图片：/banner/eb1-mobile.jpg
   移动端设计尺寸：750 × 400px
   ========================================================== */

.expert-inner-banner {
  position: relative;
  width: 100%;
  height: clamp(280px, 28vw, 430px);
  min-height: 280px;
  overflow: hidden;
  background: #1e3757;
}

.expert-inner-banner__image {
  width: 100%;
  height: 100%;
  background-image: url("/banner/eb1.jpg");
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
}

.expert-list {
  --expert-card-width: 285px;
  --expert-info-height: 64px;
  --expert-blue: #003f97;
  --expert-blue-dark: #002d73;
  --expert-blue-light: #075fc2;

  background: #ffffff;
  padding: 70px 0 82px;
}

.expert-list,
.expert-list * {
  box-sizing: border-box;
}

.expert-list__container {
  width: 100%;
  max-width: 1596px; /* 5张卡片总宽1545px + 左右安全边距约48px */
  margin: 0 auto;
  padding: 0 24px;
}

.expert-list__title {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.expert-list__grid {
  display: grid;
  grid-template-columns: repeat(5, var(--expert-card-width));
  justify-content: center;
  gap: 40px 30px;
}

/* ========== 专家卡片 ========== */
.expert-card {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: #f4f6f9;
  cursor: pointer;
  outline: none;
  box-shadow: none;
  transition: transform 0.28s ease, box-shadow 0.28s ease;
}

.expert-card:hover,
.expert-card:focus {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(0, 45, 115, 0.14);
}

.expert-card__image {
  width: 100%;
  aspect-ratio: 233 / 243;
  height: auto;
  overflow: hidden;
  background: #d9dce1;
}

.expert-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  transition: transform 0.35s ease;
}

.expert-card:hover .expert-card__image img,
.expert-card:focus .expert-card__image img,
.expert-card.is-active .expert-card__image img {
  transform: scale(1.04);
}

/* ========== 底部蓝色信息条 ========== */
.expert-card__info {
  width: 100%;
  min-height: var(--expert-info-height);
  padding: 0 13px;
  background: var(--expert-blue);
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.expert-card__name {
  font-size: 18px;
  line-height: 1;
  font-weight: 500;
  color: #ffffff;
}

.expert-card__field {
  min-width: 0;
  font-size: 15px;
  line-height: 1.2;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.92);
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ========== 悬停详情浮层：从底部滑入覆盖整张卡片 ========== */
.expert-card__hover {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 16px 10px 10px;
  color: #ffffff;
  background: linear-gradient(180deg, rgba(0, 66, 155, 0.18) 0%, rgba(0, 45, 115, 0.96) 62%, rgba(0, 31, 85, 0.98) 100%);
  transform: translateY(100%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.38s cubic-bezier(0.22, 0.61, 0.36, 1), opacity 0.28s ease;
}

@media (hover: hover) and (pointer: fine) {
  .expert-card:hover .expert-card__hover,
  .expert-card:focus .expert-card__hover {
    transform: translateY(0);
    opacity: 1;
  }
}

.expert-card.is-active .expert-card__hover {
  transform: translateY(0);
  opacity: 1;
}

.expert-card__hover-name {
  margin: 0;
  font-size: 18px;
  letter-spacing: 1px;
}

.expert-card__hover-field {
  margin: 0 0 3px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.9);
}

.expert-card__hover-desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.92);
  text-align: justify;
}

/* ========== 响应式：小桌面保持 5 列，卡片随视口等比压缩 ========== */
@media (max-width: 1680px) and (min-width: 1201px) {
  .expert-list {
    --expert-card-width: clamp(203px, 16.9vw, 285px);
    --expert-info-height: clamp(48px, 3.8vw, 64px);
  }

  .expert-list__grid {
    gap: 36px 28px;
  }

  .expert-card__info {
    padding: 0 13px;
    gap: 8px;
  }

  .expert-card__name {
    font-size: 18px;
  }

  .expert-card__field {
    font-size: 12px;
  }
}

/* ========== 平板端：4 列 ========== */
@media (max-width: 1200px) {
  .expert-list {
    --expert-card-width: 233px;
    padding: 54px 0 64px;
  }

  .expert-list__grid {
    grid-template-columns: repeat(4, minmax(0, var(--expert-card-width)));
    gap: 30px 22px;
  }
}

/* ========== 小平板端：3 列 ========== */
@media (max-width: 900px) {
  .expert-list {
    --expert-card-width: 233px;
  }

  .expert-list__grid {
    grid-template-columns: repeat(3, minmax(0, var(--expert-card-width)));
    gap: 26px 22px;
  }
}

/* ========== 手机端：2 列，点击展开详情 ========== */
@media (max-width: 640px) {
  .expert-list {
    --expert-info-height: 42px;
    padding: 36px 0 46px;
  }

  .expert-list__container {
    padding: 0 16px;
  }

  .expert-list__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 16px;
  }

  .expert-card:hover,
  .expert-card:focus {
    transform: none;
    box-shadow: none;
  }

  .expert-card__info {
    padding: 0 8px;
    gap: 5px;
  }

  .expert-card__name {
    font-size: 15px;
  }

  .expert-card__field {
    font-size: 11px;
  }

  .expert-card__hover {
    padding: 18px 12px 16px;
  }

  .expert-card__hover-name {
    font-size: 18px;
    margin-bottom: 4px;
  }

  .expert-card__hover-field {
    font-size: 12px;
    margin-bottom: 8px;
  }

  .expert-card__hover-desc {
    font-size: 12px;
    line-height: 1.6;
  }
}

/* ========== 窄屏手机：1 列 ========== */
@media (max-width: 380px) {
  .expert-list__grid {
    grid-template-columns: minmax(0, 233px);
    gap: 18px;
  }
}


/* ==========================================================
   专家列表页二级Banner响应式
   ========================================================== */

@media (max-width: 768px) {
  /* 专家团队列表页移动端专用Banner：750 × 400px */
  .expert-inner-banner {
    height: auto !important;
    min-height: 0 !important;
    aspect-ratio: 750 / 400;
    background: #1e3757;
  }

  .expert-inner-banner__image {
    background-image: url("/banner/eb1-mobile.jpg");
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
  }
}

/* 420px以下继续沿用750 × 400比例，不再固定为165px */