.container {
      display: flex;
    }

    .container-rigth {
      width: 4.95rem;
      margin-left: .45rem;
    }

    /* 右侧卡片 */
    .sidebar-card {
      margin-bottom: .35rem;
      background: #fff;
      border-radius: 0.08rem;
      box-shadow: 0 0.02rem 0.1rem rgba(0, 0, 0, 0.05);
      overflow: hidden;
    }

    .card-header {
      position: relative;
      height: .7rem;
      padding: 0.15rem 0.34rem;
      border-bottom: 0.01rem solid #f1f1f1;
      font-weight: 600;
      font-size: 0.24rem;
      line-height: .4rem;
    }

    .card-header::before {
      content: "";
      position: absolute;
      width: .03rem;
      height: .26rem;
      background-color:  rgba(202, 12, 21, 1);
      top: .225rem;
      left: .2rem;
    }

    .card-content {
      margin: 0.2rem;
      /* background-color: #f1f1f1; */
    }

    /* 加载状态 */
    .loading-state {
      text-align: center;
      padding: 1rem;
      color: #666;
      font-size: 0.2rem;
    }

    .loading-spinner {
      display: inline-block;
      width: 0.4rem;
      height: 0.4rem;
      border: 0.03rem solid #f3f3f3;
      border-top: 0.03rem solid var(--primary-color);
      border-radius: 50%;
      animation: spin 1s linear infinite;
    }

    @keyframes spin {
      100% {
        transform: rotate(360deg);
      }
    }

    .course-box {
      flex: 1;
      width: calc(100% - 5.4rem);
      background: var(--light-color);
      border-radius: .2rem .2rem 0 0;
      background: rgba(255, 255, 255, 1);
    }

    .course-top-box {
      width: 100%;
      height: 5.36rem;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      margin: .26rem 0;
      padding: .2rem;
      border-radius: .2rem;
      /* background: url("/assets/images/course-top-bg.png") 0 0/100%; */
      background-repeat: no-repeat;
    }

    .course-top-tab-box {
      display: flex;
      align-items: center;
      width: 100%;
      position: relative;
    }

    .filter-dropdown-box {
      position: relative;
      display: flex;
      margin-bottom: .15rem;
      padding: 0 .32rem;
      /* gap: 10px; */
    }
    .filter-dropdown-box::before {
      content: "";
      position: absolute;
      background-color: rgba(153, 153, 153, 1);
      top: .18rem;
      width: .06rem;
      height: .3rem;
      left: .28rem;
      background-color: rgba(255, 128, 31, 1);
      z-index: 1;
    }
    .filter-dropdown-item {
      position: relative;
      font-size: .3rem;
      font-weight: 400;
      color: #666;
      white-space: nowrap;
      cursor: pointer;
      border-radius: 4px;
      background: #fff;
      min-width: 1rem;
      text-align: center;
    }

    .filter-dropdown-item.active {
      color: var(--accent-color);;
      border-color: var(--accent-color);;
      background: #fff9f5;
    }

    .filter-dropdown-btn {
      position: relative;
      display: flex;
      align-items: center;
      padding: .1rem .2rem;
      /* background: #f5f5f5; */
      /* border-radius: .2rem; */
      /* border-right: 1px solid rgba(153, 153, 153, 1); */
      font-size: .28rem;
      color: #666;
      cursor: pointer;
      white-space: nowrap;
    }

    .filter-dropdown-btn.active {
      background: var(--accent-color);;
      color: white;
    }

    .filter-dropdown-btn::before {
      content: "";
      position: absolute;
      width: 1px;
      height: .3rem;
      background-color: rgba(153, 153, 153, 1);
      top: .18rem;
      left: 0;
    }
    /* .filter-dropdown-item:first-child .filter-dropdown-btn::before {
      width: .06rem;
      height: .3rem;
      left: -.1rem;
      background-color: rgba(255, 128, 31, 1);
    } */
    .filter-dropdown-item .filter-dropdown-btn::after {
      content: "";
      display: inline-block;
      width: 0;
      height: 0;
      margin-bottom: .08rem;
      margin-left: .1rem;
      border: solid #999;
      border-width: .06rem;
      border-top-color: transparent;
      border-left-color: transparent;
      transform: rotate(45deg);
      transition: transform 0.3s;
    }

    .filter-dropdown-btn.active::after {
      border-color: white;
      transform: rotate(-135deg);
    }

    .filter-dropdown-menu {
      position: absolute;
      top: 100%;
      left: 0;
      z-index: 1000;
      min-width: 2rem;
      background: #fff;
      border: 1px solid #e8e8e8;
      border-radius: 4px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, .15);
      margin-top: 5px;
      display: none;
    }

    .filter-dropdown-menu.show {
      display: block;
    }

    .filter-dropdown-option {
      padding: .25rem .4rem;
      font-size: .28rem;
      color: #333;
      cursor: pointer;
      transition: all .3s;
    }

    .filter-dropdown-option:hover {
      background: #f5f5f5;
      color: var(--accent-color);;
    }

    .filter-dropdown-option.active {
      background: #fff9f5;
      color: var(--accent-color);;
    }

    .course-tab-container {
      position: relative;
      width: 100%;
      overflow: hidden;
      flex: 1;
    }

    .course-tab {
      display: flex;
      align-items: center;
      position: relative;
      height: .9rem;
      margin: 0 .32rem .32rem;
      background: var(--light-color);
      overflow-x: auto;
      white-space: nowrap;
      scroll-behavior: smooth;
      -webkit-overflow-scrolling: touch;
      scrollbar-width: none;
      -ms-overflow-style: none;
    }

    .course-tab::-webkit-scrollbar {
      display: none;
    }

    .course-tab-item {
      position: relative;
      font-size: .3rem;
      line-height: .52rem;
      margin-right: .4rem;
      cursor: pointer;
      color: var(--dark-color);
      font-weight: 500;
      transition: color 0.25s;
      padding: .2rem .1rem .01rem;
      flex-shrink: 0;
      z-index: 1;
    }

    .course-tab-item.active {
      color: var(--accent-color);;
    }

    .course-tab-indicator {
      position: absolute;
      bottom: 0;
      height: .04rem;
      background: var(--accent-color);;
      border-radius: 2px;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      z-index: 0;
      /* 确保指示器在文字下方 */
    }


    .course-list {
      padding: 0.01rem .32rem;
      min-height: 6rem;
    }

    .course-item {
      display: flex;
      padding: .16rem;
      border-radius: .1rem;
      margin-bottom: .32rem;
      background: #FFFFFF;
      border: 1px solid #F2F2F2;
      box-shadow: 0px 2px 4px #00000025;
      cursor: pointer;
      transition: all 0.3s;
    }

    .course-item:hover {
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
      /* border-color: var(--accent-color);; */
    }

    .course-list .course-item-cover {
      width: 3.55rem;
      height: 2.12rem;
      border-radius: .05rem;
      object-fit: cover;
    }

    .course-list .course-rigth {
      flex: 1;
      display: flex;
      flex-direction: column;
      margin-left: .44rem;
    }

    .course-list .course-rigth .title {
      font-size: .3rem;
      font-weight: 400;
      letter-spacing: .02rem;
      line-height: .36rem;
      color: #000000;
      margin: 0 .12rem 0 0;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .course-list .course-rigth .course-conter {
      flex: 1;
      display: flex;
      font-size: .24rem;
      font-weight: 400;
      letter-spacing: .03rem;
      line-height: .35rem;
      margin: .16rem .32rem 0 0;
    }

    .course-list .course-rigth .course-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: .24rem;
      font-weight: 400;
      letter-spacing: .03rem;
      line-height: .35rem;
    }

    .course-list .course-rigth .course-bottom .play {
      padding: 0 .06rem .06rem 0;
    }

    .course-list .course-rigth .course-bottom .play img {
      width: .56rem;
      height: .56rem;
    }

    .loading {
      text-align: center;
      padding: 1rem;
      font-size: .3rem;
      color: #666;
    }

    .empty-state {
      text-align: center;
      padding: 2rem 0;
      color: #999;
      font-size: .3rem;
    }

    .pagination {
      display: flex;
      justify-content: center;
      align-items: center;
      padding: 20px 0;
    }

    .pagination-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin: 0 .2rem;
      border-radius: 50%;
      font-size: 14px;
      line-height: 1;
      cursor: pointer;
      transition: all 0.3s;
      text-decoration: none;
      box-shadow: 0 2px 8px rgba(0, 0, 0, .15);
    }

    .pagination-btn img {
      width: .6rem;
      height: .6rem;
    }

    .pagination-btn:hover {
      color: #1890ff;
      border-color: #1890ff;
    }

    .pagination-btn.active {
      color: #fff;
      background: #1890ff;
      border-color: #1890ff;
    }

    .pagination-btn.disabled {
      opacity: .55;
      cursor: not-allowed;
    }

    .pagination-btn.disabled:hover {
      color: #ccc;
      border-color: #d9d9d9;
    }

    .pagination-ellipsis {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 32px;
      height: 32px;
      margin: 0 4px;
      color: #666;
    }

    /* 院校推免 */
    .school-recommendation {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: .32rem;
      /* display: none; */
    }
    .recommendation-item {
      position: relative;
      background: #fff;
      border-radius: 0.2rem;
      box-shadow: 0 0.02rem 0.1rem rgba(0, 0, 0, 0.05);
      overflow: hidden;
      padding: .2rem;
      cursor: pointer;
    }
    .recommendation-title {
      font-size: .3rem;
      font-weight: 600;
      margin-bottom: .1rem;
      margin-right: 1.9rem;
      text-overflow: ellipsis;
      white-space: nowrap;
      overflow: hidden;
    }
    .recommendation-school {
      font-size: .2rem;
      color: #666;
      
    }
    .recommendation-tips {
      margin-top: .1rem;
      font-size: .2rem;
      color: #999;
    }
    .recommendation-righr-tags {
      position: absolute;
      top: 0;
      right: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      width: 1.85rem;
      height: .82rem;
      border-radius: 0 .2rem 0 .2rem;
      background: rgba(176, 0, 0, 1);
      font-size: .22rem;
      font-weight: 400;
      letter-spacing: .04rem;
      line-height: .32rem;
      color: rgba(255, 255, 255, 1);
      text-align: center;
    }
    .recommendation-righr-tags.is-green {
      background: rgba(0, 176, 65, 1);
    }
    .recommendation-righr-tags.is-black {
      background: rgba(0, 0, 0, 1)
    }
    .recommendation-date {
      margin-top: .02rem;
    }
    .recommendation-date span {
      text-align: center;
      font-size: .32rem;
      letter-spacing: .02rem;
      color: rgba(255, 255, 255, 1);
    }
    .recommendation-view {
      position: absolute;
      bottom: .2rem;
      right: .2rem;
      font-size: .2rem;
      color: #999;
    }
    
    /* 院校推免接收 */
    .recommendation-receive {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: .32rem;
      /* display: none; */
    }

    /* 录取名单 */
    .admission-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: .32rem;
      /* display: none; */
    }
    .recommendation-item-content {
      display: flex;
      justify-content: space-between;
    }
    .recommendation-item-content-left {
      flex: 1;
      width: calc(100% - 1.4rem);
    }
    .recommendation-item-content-left .recommendation-title {
      margin-right: 0;
    }
    .recommendation-item-content-right {
      width: .76rem;
      height: .76rem;
      margin: .08rem;
      /* background-color: #ccc; */
      font-size: .2rem;
      flex-shrink: 0;
    }

    .recommendation-admission-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: .06rem 0 0;
      font-size: .24rem;
    }

    .recommendation-admission-bottom-left span{
      font-size: .2rem;
      font-weight: 400;
      letter-spacing: .03rem;
      color: #999;
      margin-right: .4rem;
    }
    .recommendation-admission-bottom-right {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 1.72rem;
      height: .52rem;
      border-radius: .3rem;
      background: rgba(176, 0, 0, 1);
      font-size: .24rem;
      font-weight: 600;
      letter-spacing: .02rem;
      color: rgba(255, 255, 255, 1);
      cursor: pointer;
    }

    /* 保研技巧 */
    .technic-box {
      /* display: none; */
    }
    .technic-item-content {
      display: flex;
      justify-content: space-between;
    }
    .technic-item-content-right {
      width: 2.9rem;
      height: 1.73rem;
      margin-right: .42rem;
    }
    .technic-item-content-right-img {
      width: 100%;
      height: 100%;
      border-radius: .1rem;
      object-fit: cover;
    }
    .technic-item-content-left {
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    /* 保研竞赛 */
    .competition-box {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: .32rem;
    }

    /* 获奖名单 */
    .awards-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: .32rem;
      /* display: none; */
    }
    
    /* 学习动态卡片样式 */
    #dynamic-list {
      height: 3.2rem;
      overflow: hidden;
      position: relative;
    }
    .dynamic-scroll-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .dynamic-scroll-list li {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 0.8rem;        /* 每项高度 */
      line-height: 0.8rem;
      padding: 0 0.2rem;
      border-bottom: 1px solid #f0f0f0;
      font-size: 0.24rem;
    }
    .dynamic-scroll-list li img{
      width: 0.4rem;
      height: 0.4rem;
      border-radius: 50%;
      margin-right: 0.12rem;
    }
    .dynamic-text {
      color: #333;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      flex: 1;
      margin-right: 0.2rem;
    }
    .dynamic-time {
      color: #999;
      font-size: 0.2rem;
      flex-shrink: 0;
    }

    .province-grid {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      padding: 12px;
    }

    .province-grid .filter-dropdown-option {
      flex: 0 0 calc(12.5% - 6px);
      margin: 0;
      text-align: center;
      box-sizing: border-box;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      padding: 10px 5px;
    }

    .filter-dropdown-item[data-type="region"] .filter-dropdown-menu {
      width: 800px;
      left: -340px;
    }