@media (max-width: 768px) {
      .navbar {
        padding: 12px 16px;
      }
      .navbar .brand-logo img {
        height: 32px;
      }
      .navbar .nav-links {
        display: none;
      }
      .hamburger {
        display: flex;
      }
      .mobile-menu {
        width: 100%;
        right: -100%;
        padding: 80px 24px 30px;
      }
      .navbar::after {
        display: none;
      }
      .nav-links .dropdown-menu {
        display: none;
      }
    }

    /* ===== Banner ===== */
    .page-banner {
      width: 100%;
      height: 320px;
      background: url("/images/sbanner.png") no-repeat center center;
      background-size: cover;
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
    }

    @media (max-width: 768px) {
      .page-banner {
        height: 220px;
      }
      .page-banner .banner-text h1 {
        font-size: 2.2rem;
      }
    }

    /* ===== 面包屑 ===== */
    .page-nav {
      max-width: 1200px;
      margin: 0 auto;
      padding: 18px 20px;
      border-bottom: 1px solid #e8ecf2;
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.9rem;
      color: #6a7f9b;
    }
    .page-nav a {
      color: #1a2639;
      text-decoration: none;
      transition: 0.2s;
    }
    .page-nav a:hover {
      color: #ae1623;
    }
    .page-nav .sep {
      color: #c0c8d6;
    }
    .page-nav .current {
      color: #ae1623;
      font-weight: 600;
    }

    /* ===== 内容主体 ===== */
    .content-wrapper {
      max-width: 1200px;
      margin: 0 auto;
      padding: 40px 20px 80px;
    }

    /* ===== 视频中心头部 ===== */
    .video-header {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      flex-wrap: wrap;
      gap: 30px;
      margin-bottom: 20px;
    }
    .video-header-left {
      display: flex;
      flex-direction: column;
    }
    .video-header-left .main-title {
      font-size: 2.2rem;
      font-weight: 700;
      color: #1a2639;
      letter-spacing: 2px;
    }
    .video-header-left .sub-title {
      font-size: 0.9rem;
      color: #6a7f9b;
      letter-spacing: 4px;
      text-transform: uppercase;
      margin-top: 2px;
    }
    .video-categories {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
    }
    .video-categories .cat-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.9rem;
      font-weight: 500;
      color: #fff;
      cursor: pointer;
      padding: 8px 18px;
      background: rgb(164, 30, 37);
      border-radius: 0;
      transition: background 0.2s;
      text-decoration: none;
      border: none;
      font-family: inherit;
    }
    .video-categories .cat-item .line {
      display: inline-block;
      width: 0;
      height: 2px;
      background: rgba(255, 255, 255, 0.8);
      transition: width 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
      flex-shrink: 0;
    }
    .video-categories .cat-item.active .line,
    .video-categories .cat-item:hover .line {
      width: 24px;
    }
    .video-categories .cat-item:hover,
    .video-categories .cat-item.active {
      background: rgb(164, 30, 37);
      transform: none;
      box-shadow: none;
    }
    .video-divider {
      width: 100%;
      height: 1px;
      background: #d0d7e2;
      margin: 10px 0 30px 0;
    }

    @media (max-width: 768px) {
      .video-header {
        flex-direction: column;
        gap: 16px;
      }
      .video-header-left .main-title {
        font-size: 1.8rem;
      }
      .video-categories .cat-item {
        font-size: 0.8rem;
        padding: 6px 14px;
      }
    }

    /* ===== 视频列表 ===== */
    .video-list {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
      margin-top: 10px;
    }

    .video-item {
      background: #ffffff;
      overflow: hidden;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
      transition: 0.3s ease;
      cursor: pointer;
      position: relative;
    }
    .video-item:hover {
      transform: translateY(-6px);
      box-shadow: 0 16px 48px rgba(0, 0, 0, 0.08);
    }

    .video-item .video-player-wrapper {
      position: relative;
      width: 100%;
      padding-bottom: 56.25%;
      background: #0a0a0a;
      overflow: hidden;
    }
    .video-item .video-player-wrapper video {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      background: #0a0a0a;
      display: block;
    }

    .video-item .video-player-wrapper .play-overlay {
      position: absolute;
      inset: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(0, 0, 0, 0.25);
      transition: 0.3s ease;
      z-index: 2;
      cursor: pointer;
    }
    .video-item .video-player-wrapper .play-overlay.hidden {
      opacity: 0;
      pointer-events: none;
    }
    .video-item:hover .video-player-wrapper .play-overlay:not(.hidden) {
      background: rgba(0, 0, 0, 0.4);
    }
    .video-item .video-player-wrapper .play-overlay .play-circle {
      width: 64px;
      height: 64px;
      border-radius: 50%;
      background: rgba(174, 22, 35, 0.85);
      display: flex;
      align-items: center;
      justify-content: center;
      transition: 0.3s ease;
      border: 2px solid rgba(255, 255, 255, 0.3);
    }
    .video-item:hover .video-player-wrapper .play-overlay:not(.hidden) .play-circle {
      transform: scale(1.1);
      background: rgba(174, 22, 35, 1);
    }
    .video-item .video-player-wrapper .play-overlay .play-circle i {
      color: #fff;
      font-size: 1.5rem;
      margin-left: 4px;
    }

    .video-item .video-player-wrapper .duration {
      position: absolute;
      bottom: 12px;
      right: 12px;
      background: rgba(0, 0, 0, 0.7);
      color: #fff;
      padding: 3px 10px;

      font-size: 0.75rem;
      font-weight: 500;
      letter-spacing: 0.5px;
      backdrop-filter: blur(4px);
      z-index: 3;
    }

    /* ===== 视频信息 ===== */
    .video-item .video-info {
      padding: 18px 20px 20px;
    }
    .video-item .video-info .video-title {
      font-size: 1rem;
      font-weight: 600;
      color: #1a2639;
      line-height: 1.4;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      min-height: 44px;
      transition: 0.2s;
    }
    .video-item:hover .video-info .video-title {
      color: #ae1623;
    }
    .video-item .video-info .video-desc {
      font-size: 0.85rem;
      color: #6a7f9b;
      line-height: 1.6;
      margin-top: 8px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      min-height: 40px;
    }
    .video-item .video-info .video-meta {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      font-size: 0.8rem;
      color: #7a8ba3;
      margin-top: 14px;
      border-top: 1px solid #eef2f7;
      padding-top: 14px;
    }
    .video-item .video-info .video-meta span {
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .video-item .video-info .video-meta i {
      color: #ae1623;
      font-size: 0.75rem;
    }
    /* 放大播放按钮（小标签） */
    .video-item .video-info .video-meta .fullscreen-btn {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #ae1623;
      font-weight: 500;
      font-size: 0.8rem;
      background: none;
      border: none;
      cursor: pointer;
      padding: 4px 8px;
      border-radius: 4px;
      transition: 0.2s;
      font-family: inherit;
    }
    .video-item .video-info .video-meta .fullscreen-btn:hover {
      background: #fef0f0;
    }
    .video-item .video-info .video-meta .fullscreen-btn i {
      font-size: 0.7rem;
      transition: 0.2s;
    }
    .video-item .video-info .video-meta .fullscreen-btn:hover i {
      transform: scale(1.2);
    }

    /* ===== 分页 ===== */
    .pagination {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 10px;
      margin-top: 48px;
      flex-wrap: wrap;
    }
    .pagination a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 40px;
      height: 40px;
      padding: 0 14px;
      border-radius: 8px;
      font-size: 0.9rem;
      font-weight: 500;
      color: #1a2639;
      background: #f4f7fc;
      text-decoration: none;
      transition: 0.2s;
      border: 1px solid transparent;
    }
    .pagination a:hover {
      background: #e8ecf3;
      border-color: #cdd5e2;
    }
    .pagination a.active {
      background: #ae1623;
      color: #fff;
      border-color: #ae1623;
    }
    .pagination a.arrow {
      background: transparent;
      color: #6a7f9b;
    }
    .pagination a.arrow:hover {
      background: #f0f3f8;
      color: #1a2639;
    }

    /* ===== 底部 ===== */
    .footer {
      width: 100%;
      border-top: 1px solid rgba(0, 0, 0, 0.05);
      padding: 30px 20px 20px;
      text-align: center;
      font-size: 0.8rem;
      color: #2d4059;
      line-height: 1.7;
      background: #f8faff;
    }
    .footer .footer-row {
      max-width: 1200px;
      margin: 0 auto;
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      align-items: baseline;
      gap: 6px 20px;
    }
    .footer .footer-row .sep {
      color: #b0b8c5;
      margin: 0 4px;
    }
    .footer .footer-row a {
      color: #3b6cb7;
      text-decoration: none;
    }
    .footer .footer-row a:hover {
      text-decoration: underline;
    }
    @media (max-width: 768px) {
      .footer {
        padding: 20px 16px 16px;
        font-size: 0.7rem;
      }
    }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
      .video-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
      }
    }
    @media (max-width: 640px) {
      .video-list {
        grid-template-columns: 1fr;
        gap: 20px;
      }
      .video-item .video-info .video-title {
        font-size: 0.95rem;
      }
      .video-item .video-info .video-desc {
        font-size: 0.8rem;
      }
      .video-item .video-player-wrapper .play-overlay .play-circle {
        width: 48px;
        height: 48px;
      }
      .video-item .video-player-wrapper .play-overlay .play-circle i {
        font-size: 1.1rem;
      }
      .pagination a {
        min-width: 36px;
        height: 36px;
        font-size: 0.8rem;
        padding: 0 10px;
      }
      .video-categories .cat-item {
        font-size: 0.7rem;
        padding: 5px 10px;
      }
    }

    /* ===== 视频加载状态 ===== */
    .video-item .video-player-wrapper .loading-spinner {
      position: absolute;
      inset: 0;
      display: none;
      align-items: center;
      justify-content: center;
      background: rgba(0, 0, 0, 0.6);
      z-index: 4;
    }
    .video-item .video-player-wrapper .loading-spinner.show {
      display: flex;
    }
    .video-item .video-player-wrapper .loading-spinner i {
      color: #fff;
      font-size: 2rem;
      animation: spin 1s linear infinite;
    }
    @keyframes spin {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(360deg); }
    }

    /* ========================================
       视频弹窗（全屏放大播放）
       ======================================== */
    .video-modal-overlay {
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.88);
      backdrop-filter: blur(12px);
      z-index: 99999;
      display: flex;
      align-items: center;
      justify-content: center;
      opacity: 0;
      visibility: hidden;
      transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
      padding: 30px;
    }
    .video-modal-overlay.active {
      opacity: 1;
      visibility: visible;
    }

    .video-modal-content {
      position: relative;
      width: 100%;
      max-width: 960px;
      background: #000;
   
      overflow: hidden;
      transform: scale(0.92) translateY(40px);
      transition: all 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
      box-shadow: 0 60px 120px rgba(0, 0, 0, 0.7);
    }
    .video-modal-overlay.active .video-modal-content {
      transform: scale(1) translateY(0);
    }

    .video-modal-content .modal-video-wrapper {
      position: relative;
      width: 100%;
      padding-bottom: 56.25%;
      background: #000;
    }
    .video-modal-content .modal-video-wrapper video {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: contain;
      background: #000;
      display: block;
    }
    .video-modal-content .modal-video-wrapper video::-webkit-media-controls {
      z-index: 10;
    }

    /* 弹窗关闭按钮 */
    .video-modal-close {
      position: absolute;
      top: -56px;
      right: 0;
      width: 48px;
      height: 48px;
      border: none;
      background: rgba(255, 255, 255, 0.12);
      backdrop-filter: blur(8px);
      color: #fff;
      font-size: 1.6rem;
      border-radius: 50%;
      cursor: pointer;
      transition: 0.3s ease;
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 20;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .video-modal-close:hover {
      background: rgba(174, 22, 35, 0.85);
      transform: rotate(90deg);
      border-color: rgba(174, 22, 35, 0.5);
    }

    /* 弹窗视频信息 */
    .video-modal-info {
      padding: 18px 24px 22px;
      background: #14141e;
      color: #fff;
    }
    .video-modal-info .modal-title {
      font-size: 1.15rem;
      font-weight: 600;
      margin-bottom: 4px;
    }
    .video-modal-info .modal-meta {
      font-size: 0.85rem;
      color: rgba(255, 255, 255, 0.45);
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .video-modal-info .modal-meta span {
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .video-modal-info .modal-meta i {
      font-size: 0.75rem;
      color: #ae1623;
    }

    /* 弹窗加载状态 */
    .modal-loading {
      position: absolute;
      inset: 0;
      display: none;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 16px;
      background: #0a0a0a;
      z-index: 5;
      color: rgba(255, 255, 255, 0.6);
    }
    .modal-loading.show {
      display: flex;
    }
    .modal-loading .spinner {
      width: 48px;
      height: 48px;
      border: 3px solid rgba(255, 255, 255, 0.1);
      border-top-color: #ae1623;
      border-radius: 50%;
      animation: spin 0.8s linear infinite;
    }

    /* 弹窗错误状态 */
    .modal-error {
      position: absolute;
      inset: 0;
      display: none;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 14px;
      background: #0a0a0a;
      z-index: 5;
      color: rgba(255, 255, 255, 0.7);
    }
    .modal-error.show {
      display: flex;
    }
    .modal-error i {
      font-size: 3.2rem;
      color: #ff6b6b;
    }
    .modal-error .retry-btn {
      padding: 8px 32px;
      background: #ae1623;
      color: #fff;
      border: none;
      border-radius: 30px;
      cursor: pointer;
      font-size: 0.9rem;
      transition: 0.3s ease;
      font-family: inherit;
    }
    .modal-error .retry-btn:hover {
      background: #8a121d;
      transform: scale(1.04);
    }

    /* 弹窗响应式 */
    @media (max-width: 768px) {
      .video-modal-overlay {
        padding: 12px;
      }
      .video-modal-close {
        top: 12px;
        right: 12px;
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
      }
      .video-modal-content {
      
      }
      .video-modal-info {
        padding: 14px 16px 16px;
      }
      .video-modal-info .modal-title {
        font-size: 0.95rem;
      }
      .video-modal-info .modal-meta {
        font-size: 0.75rem;
        gap: 10px;
      }
    }
    @media (max-width: 480px) {
      .video-modal-overlay {
        padding: 8px;
      }
      .video-modal-close {
        top: 8px;
        right: 8px;
        width: 34px;
        height: 34px;
        font-size: 1rem;
      }
      .video-modal-content {
        
      }
    }