.customer-service {
      position: fixed;
      right: 30px;
      bottom: 30px;
      z-index: 9999;
  }

  .service-btn {
      width: 60px;
      height: 60px;
      border-radius: 50%;
      background-color: #040498;
      color: white;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      cursor: pointer;
      box-shadow: 0 2px 10px rgba(0, 136, 255, 0.3);
      transition: all 0.3s ease;
      position: relative;
      border: none;
      outline: none;
      animation: breathe 2s infinite ease-in-out;
  }

  @keyframes breathe {

      0%,
      100% {
          transform: scale(1);
          box-shadow: 0 2px 10px rgba(0, 136, 255, 0.3);
      }

      50% {
          transform: scale(1.08);
          box-shadow: 0 4px 15px rgba(0, 136, 255, 0.5);
      }
  }

  .service-btn::after {
      content: attr(data-tooltip);
      position: absolute;
      right: 70px;
      top: 50%;
      transform: translateY(-50%);
      background-color: #333;
      color: white;
      padding: 6px 12px;
      border-radius: 4px;
      font-size: 14px;
      white-space: nowrap;
      opacity: 0;
      visibility: hidden;
      transition: all 0.3s ease;
      z-index: 10000;
      transform: translateY(-50%) translateX(10px);
  }

  .service-btn::before {
      content: '';
      position: absolute;
      right: 64px;
      top: 50%;
      transform: translateY(-50%);
      border-width: 6px 0 6px 8px;
      border-style: solid;
      border-color: transparent transparent transparent #333;
      opacity: 0;
      visibility: hidden;
      transition: all 0.3s ease;
      z-index: 10000;
      transform: translateY(-50%) translateX(10px);
  }


  .service-btn:hover {
      background-color: #040498;
      animation: none;
      transform: scale(1.1);
  }

  .service-btn:hover::after,
  .service-btn:hover::before {
      opacity: 1;
      visibility: visible;
      transform: translateY(-50%) translateX(0);
  }

  .service-dialog {
      width: 320px;
      background-color: white;
      border-radius: 8px;
      box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
      position: absolute;
      right: 0;
      bottom: 70px;
      opacity: 0;
      visibility: hidden;
      transform: translateY(20px) scale(0.95);
      transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  }

  .service-dialog.show {
      opacity: 1;
      visibility: visible;
      transform: translateY(0) scale(1);
  }

  .dialog-header {
      background-color: #040498;
      color: white;
      padding: 12px 15px;
      border-radius: 8px 8px 0 0;
      display: flex;
      justify-content: space-between;
      align-items: center;
  }

  .dialog-title {
      font-size: 16px;
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 8px;
  }

  .online-status {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: #4cd964;
      animation: pulse 1.5s infinite;
  }

  @keyframes pulse {
      0% {
          box-shadow: 0 0 0 0 rgba(76, 217, 100, 0.7);
      }

      70% {
          box-shadow: 0 0 0 6px rgba(76, 217, 100, 0);
      }

      100% {
          box-shadow: 0 0 0 0 rgba(76, 217, 100, 0);
      }
  }

  .close-btn {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background-color: rgba(255, 255, 255, 0.2);
      color: white;
      border: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      transition: all 0.2s;
  }

  .close-btn:hover {
      background-color: rgba(255, 255, 255, 0.3);
      transform: rotate(90deg);
  }

  .dialog-content {
      height: 300px;
      padding: 15px;
      overflow-y: auto;
      background-color: #f9f9f9;
  }

  .message {
      margin-bottom: 15px;
      max-width: 80%;
      opacity: 0;
      transform: translateY(10px);
      animation: messageIn 0.3s ease forwards;
  }

  @keyframes messageIn {
      to {
          opacity: 1;
          transform: translateY(0);
      }
  }

  .message.robot {
      text-align: left;
      animation-delay: 0.1s;
  }

  .message.user {
      text-align: right;
      margin-left: auto;
      animation-delay: 0.2s;
  }

  .message-content {
      padding: 8px 12px;
      border-radius: 6px;
      display: inline-block;
      position: relative;
  }

  .robot .message-content {
      background-color: white;
      border: 1px solid #eee;
      border-radius: 6px 6px 6px 0;
      box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  }

  .user .message-content {
      background-color: #040498;
      color: white;
      border-radius: 6px 6px 0 6px;
      box-shadow: 0 1px 2px rgba(0, 136, 255, 0.2);
  }

  .loading {
      display: inline-flex;
      gap: 2px;
      padding: 8px;
      background-color: white;
      border-radius: 6px 6px 6px 0;
  }

  .loading-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background-color: #040498;
      animation: loading 1s infinite ease-in-out;
  }

  .loading-dot:nth-child(2) {
      animation-delay: 0.2s;
  }

  .loading-dot:nth-child(3) {
      animation-delay: 0.4s;
  }

  @keyframes loading {

      0%,
      100% {
          transform: translateY(0);
      }

      50% {
          transform: translateY(-5px);
      }
  }

  .dialog-input {
      padding: 10px 15px;
      border-top: 1px solid #eee;
      display: flex;
      gap: 10px;
  }

  #messageInput {
      flex: 1;
      padding: 8px 12px;
      border: 1px solid #ddd;
      border-radius: 20px;
      outline: none;
      font-size: 14px;
      transition: all 0.3s ease;
  }

  #messageInput:focus {
      border-color: #040498;
      box-shadow: 0 0 0 3px rgba(0, 136, 255, 0.1);
      transform: translateX(-2px);
  }

  #sendBtn {
      padding: 8px 16px;
      background-color: #040498;
      color: white;
      border: none;
      border-radius: 20px;
      cursor: pointer;
      font-size: 14px;
      transition: all 0.2s;
      position: relative;
      overflow: hidden;
  }

  #sendBtn:hover {
      background-color: #040498;
      transform: scale(1.05);
  }

  #sendBtn::after {
      content: '';
      position: absolute;
      top: 50%;
      left: 50%;
      width: 0;
      height: 0;
      background-color: rgba(255, 255, 255, 0.2);
      border-radius: 50%;
      transform: translate(-50%, -50%);
      transition: width 0.6s ease, height 0.6s ease;
  }

  #sendBtn:active::after {
      width: 200px;
      height: 200px;
      opacity: 0;
  }