:root {
          --primary-color: #1e88e5;
          --primary-light: #64b5f6;
          --primary-dark: #1565c0;
          --text-color: #333;
          --text-light: #666;
          --bg-color: #f5f7fa;
          --card-bg: rgba(255, 255, 255, 0.85);
          --card-bg-solid: #ffffff;
          --border-color: rgba(224, 224, 224, 0.6);
          --shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
          --blur-bg: rgba(255, 255, 255, 0.7);
        }
        * {
          margin: 0;
          padding: 0;
          box-sizing: border-box;
          }
        body {
          background-color: var(--bg-color);
          color: var(--text-color);
          line-height: 1.6;
          background-image: linear-gradient(120deg, #e0f7fa 0%, #f5f7fa 100%);
          min-height: 100vh;
        }
        header {
          background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
          color: white;
          padding: 1.5rem 0;
          text-align: center;
          box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
          position: relative;
          overflow: hidden;
        }
        header::before {
          content: '';
          position: absolute;
          top: 0;
          left: 0;
          right: 0;
          bottom: 0;
          background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect fill="rgba(255,255,255,0.05)" width="50" height="50"/></svg>');
          opacity: 0.1;
        }
        .container {
          max-width: 1200px;
          margin: 0 auto;
          padding: 0 20px;
        }
        .logo {
          font-size: 2rem;
          font-weight: 700;
          margin-bottom: 0.3rem;
          display: flex;
          align-items: center;
          justify-content: center;
        }
        .subtitle {
          font-size: 1.1rem;
          opacity: 0.9;
          margin-bottom: 1rem;
        }
        .stats {
          display: flex;
          justify-content: center;
          gap: 1.5rem;
          margin-top: 1rem;
        }
        .stat-item {
          text-align: center;
        }
        .stat-value {
          font-size: 1.5rem;
          font-weight: 600;
        }
        .stat-label {
          font-size: 0.9rem;
          opacity: 0.8;
        }
        /* 修改用户信息卡片样式 */
        .user-info {
          display: flex;
          align-items: center;
          gap: 1rem;
          padding: 1rem;
          background: var(--blur-bg);
          border-radius: 16px;
          backdrop-filter: blur(10px);
          -webkit-backdrop-filter: blur(10px);
          box-shadow: var(--shadow);
          transition: all 0.3s;
          flex: 0 1 280px;
          min-width: 250px;
          margin: 0;
          /* 移除之前的margin设置 */
        }
        .user-info:hover {
          transform: translateY(-3px);
          box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
        }
        .user-avatar {
          width: 60px;
          height: 60px;
          border-radius: 50%;
          object-fit: cover;
          border: 2px solid white;
          box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15);
        }
        .user-avatar:hover {
          transform: scale(1.05);
        }
        .user-details {
          text-align: left;
          flex: 1;
        }
        .user-name {
          font-size: 1.1rem;
          font-weight: 600;
          margin-bottom: 0.3rem;
        }
        .user-signature {
          font-size: 0.85rem;
          opacity: 0.8;
          font-style: italic;
          line-height: 1.3;
        }
        .user-container {
          display: flex;
          justify-content: center;
          gap: 1.5rem;
          margin: 1.5rem 0;
          flex-wrap: wrap;
        }
        .user-link {
          text-decoration: none;
          color: inherit;
          display: block;
        }
        .user-link:hover {
          color: var(--primary-light);
        }
        .controls {
          display: flex;
          justify-content: space-between;
          align-items: center;
          margin: 2rem 0;
          flex-wrap: wrap;
          gap: 1rem;
          padding: 1.5rem;
          background: var(--blur-bg);
          border-radius: 16px;
          backdrop-filter: blur(10px);
          -webkit-backdrop-filter: blur(10px);
          box-shadow: var(--shadow);
        }
        .search-box {
          display: flex;
          flex: 1;
          max-width: 400px;
        }
        .search-box input {
          flex: 1;
          padding: 12px 15px;
          border: 1px solid var(--border-color);
          border-radius: 12px 0 0 12px;
          font-size: 1rem;
          background: rgba(255, 255, 255, 0.8);
          transition: all 0.3s;
        }
        .search-box input:focus {
          outline: none;
          border-color: var(--primary-color);
          box-shadow: 0 0 0 2px rgba(30, 136, 229, 0.2);
        }
        .search-box button {
          background-color: var(--primary-color);
          color: white;
          border: none;
          padding: 0 20px;
          border-radius: 0 12px 12px 0;
          cursor: pointer;
          transition: background-color 0.3s;
        }
        .search-box button:hover {
          background-color: var(--primary-dark);
        }
        .sort-options {
          display: flex;
          gap: 1rem;
        }
        .sort-btn {
          background: none;
          border: 1px solid var(--border-color);
          padding: 10px 18px;
          border-radius: 12px;
          cursor: pointer;
          transition: all 0.3s;
          background: rgba(255, 255, 255, 0.7);
        }
        .sort-btn.active {
          background-color: var(--primary-color);
          color: white;
          border-color: var(--primary-color);
        }
        .video-grid {
          display: grid;
          grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
          gap: 1.5rem;
          margin-bottom: 2rem;
        }
        .video-card {
          background-color: var(--card-bg);
          border-radius: 16px;
          overflow: hidden;
          box-shadow: var(--shadow);
          transition: transform 0.3s, box-shadow 0.3s;
          backdrop-filter: blur(10px);
          -webkit-backdrop-filter: blur(10px);
          border: 1px solid rgba(255, 255, 255, 0.5);
          display: flex;
          flex-direction: column;
        }
        .video-card:hover {
          transform: translateY(-8px);
          box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
        }
        .video-cover {
          position: relative;
          width: 100%;
          padding-top: 56.25%;
          overflow: hidden;
        }
        .video-cover img {
          position: absolute;
          top: 0;
          left: 0;
          width: 100%;
          height: 100%;
          object-fit: cover;
          transition: transform 0.5s;
        }
        .video-card:hover .video-cover img {
          transform: scale(1.05);
        }
        .video-duration {
          position: absolute;
          bottom: 8px;
          right: 8px;
          background-color: rgba(0, 0, 0, 0.7);
          color: white;
          padding: 4px 8px;
          border-radius: 8px;
          font-size: 0.8rem;
          backdrop-filter: blur(5px);
        }
        .video-info {
          padding: 1.2rem;
          flex-grow: 1;
          display: flex;
          flex-direction: column;
        }
        .video-title {
          font-weight: 600;
          margin-bottom: 0.8rem;
          display: -webkit-box;
          -webkit-line-clamp: 2;
          -webkit-box-orient: vertical;
          overflow: hidden;
          height: auto;
          min-height: 3.2rem;
          line-height: 1.4;
        }
        .video-stats {
          display: flex;
          flex-wrap: wrap;
          gap: 0.8rem;
          margin-top: auto;
          padding-top: 0.8rem;
          border-top: 1px solid var(--border-color);
        }
        .stat {
          display: flex;
          align-items: center;
          gap: 0.3rem;
          font-size: 0.85rem;
          color: var(--text-light);
        }
        .stat-icon {
          font-size: 1rem;
        }
        .video-meta {
          display: flex;
          justify-content: space-between;
          font-size: 0.85rem;
          color: var(--text-light);
          margin-top: 0.8rem;
        }
        .pagination {
          display: flex;
          justify-content: center;
          align-items: center;
          margin: 2rem 0;
          gap: 1rem;
        }
        .pagination button {
          background-color: var(--primary-color);
          color: white;
          border: none;
          padding: 10px 18px;
          border-radius: 12px;
          cursor: pointer;
          transition: background-color 0.3s;
          box-shadow: 0 4px 12px rgba(30, 136, 229, 0.3);
        }
        .pagination button:disabled {
          background-color: var(--border-color);
          cursor: not-allowed;
          box-shadow: none;
        }
        .pagination button:hover:not(:disabled) {
          background-color: var(--primary-dark);
        }
        .page-info {
          font-size: 0.9rem;
          padding: 8px 16px;
          background: var(--blur-bg);
          border-radius: 12px;
          backdrop-filter: blur(10px);
        }
        .loading {
          text-align: center;
          padding: 3rem;
          font-size: 1.1rem;
          color: var(--text-light);
        }
        .error {
          text-align: center;
          padding: 2rem;
          color: #e53935;
          background-color: rgba(255, 235, 238, 0.8);
          border-radius: 16px;
          margin: 2rem 0;
          backdrop-filter: blur(10px);
        }
        footer {
          text-align: center;
          padding: 2rem 0;
          color: var(--text-light);
          border-top: 1px solid var(--border-color);
          margin-top: 2rem;
          background: var(--blur-bg);
          backdrop-filter: blur(10px);
        }
        @media (max-width: 768px) {
          .video-grid {
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
          }
          .controls {
            flex-direction: column;
            align-items: stretch;
          }
          .search-box {
            max-width: 100%;
          }
          .sort-options {
            justify-content: center;
          }
          .user-container {
            flex-direction: column;
            align-items: center;
          }
          .user-info {
            width: 100%;
            max-width: 400px;
          }
          .user-details {
            text-align: center;
          }
        }
        @media (max-width: 480px) {
          .video-grid {
            grid-template-columns: 1fr;
          }
          .logo {
            font-size: 2rem;
          }
          .stats {
            flex-direction: column;
            gap: 1rem;
          }
          .video-stats {
            gap: 0.5rem;
          }
          .user-info {
            flex-direction: column;
            text-align: center;
            gap: 0.8rem;
          }
          .user-details {
            text-align: center;
          }
        }