body {
        margin: 0;
        padding: 0;
        min-height: 100vh;
        font-family: "Segoe UI", Arial, sans-serif;
        background: linear-gradient(135deg, #0f1535 60%, #1ec6e6 100%);
        color: #fff;
        display: flex;
        flex-direction: column;
        align-items: center;
      }

      .container {
        width: 100%;
        max-width: 400px;
        margin: 0 auto;
        padding: 32px 16px 0 16px;
        box-sizing: border-box;
        display: flex;
        flex-direction: column;
        align-items: center;
      }

      .robot-img {
        width: 160px;
        height: 160px;
        margin-bottom: 16px;
        background: none;
        display: flex;
        align-items: center;
        justify-content: center;
      }

      .robot-img img {
        animation: ai-float 2.2s ease-in-out infinite alternate;
      }

      @keyframes ai-float {
        0% {
          transform: translateY(0) scale(1);
          filter: drop-shadow(0 2px 8px #ffa20044);
        }
        50% {
          transform: translateY(-12px) scale(1.04);
          filter: drop-shadow(0 8px 18px #ffa20066);
        }
        100% {
          transform: translateY(0) scale(1);
          filter: drop-shadow(0 2px 8px #ffa20044);
        }
      }

      .title {
        font-size: 2rem;
        font-weight: 600;
        margin-bottom: 8px;
        color: #ffa200;
        text-align: center;
        width: 100%;
      }

      .subtitle {
        font-size: 1.5rem;
        font-weight: 500;
        margin-bottom: 24px;
        color: #fff;
        text-align: center;
        width: 100%;
        line-height: 1.2;
      }

      .card {
        background: rgba(20, 30, 60, 0.95);
        border-radius: 18px;
        padding: 20px 18px;
        margin-bottom: 24px;
        width: 100%;
        box-sizing: border-box;
        box-shadow: 0 4px 24px rgba(0, 0, 0, 0.18);
        text-align: left;
      }

      .result-box {
        background: linear-gradient(135deg, #18213c 60%, #1ec6e6 100%);
        border-radius: 12px;
        padding: 64px 18px;
        max-width: 340px;
        margin: 60px auto;
        color: #fff;
        box-shadow: 0 4px 24px rgba(0, 0, 0, 0.18);
      }

      .accuracy {
        font-size: 1.1rem;
        margin-bottom: 10px;
        color: #fff;
      }

      .accuracy .percent {
        color: #ffa200;
        font-weight: bold;
        font-size: 1.3rem;
      }

      .desc {
        font-size: 1rem;
        color: #b8c6e0;
        margin-bottom: 6px;
      }

      .desc .highlight {
        color: #ffa200;
        font-weight: 500;
        text-decoration: underline;
        cursor: pointer;
      }

      .input-group {
        width: 100%;
        margin-bottom: 18px;
      }

      .input-group input {
        width: 100%;
        padding: 14px 12px;
        border-radius: 8px;
        border: none;
        background: #232b45;
        color: #b8c6e0;
        font-size: 1rem;
        outline: none;
        margin-bottom: 0;
        box-sizing: border-box;
      }

      .btn {
        width: 100%;
        padding: 14px 0;
        border: none;
        border-radius: 24px;
        background: linear-gradient(90deg, #1ec6e6 0%, #25a4e9 100%);
        color: #fff;
        font-size: 1.1rem;
        font-weight: 600;
        cursor: pointer;
        transition: background 0.2s;
        margin-top: 8px;
        box-shadow: 0 2px 8px rgba(30, 198, 230, 0.18);
        animation: btn-breath 1.8s ease-in-out infinite;
      }

      @keyframes btn-breath {
        0% {
          box-shadow: 0 2px 16px 0 rgba(30, 198, 230, 0.25),
            0 2px 8px rgba(30, 198, 230, 0.18);
          transform: scale(1);
        }
        50% {
          box-shadow: 0 4px 32px 0 rgba(30, 198, 230, 0.38),
            0 2px 16px rgba(30, 198, 230, 0.22);
          transform: scale(1.04);
        }
        100% {
          box-shadow: 0 2px 16px 0 rgba(30, 198, 230, 0.25),
            0 2px 8px rgba(30, 198, 230, 0.18);
          transform: scale(1);
        }
      }

      #chat-btn {
        animation: breath 1.6s ease-in-out infinite;
      }

      @keyframes breath {
        0% {
          box-shadow: 0 2px 12px 0 #15a22333;
          transform: scale(1);
        }
        50% {
          box-shadow: 0 6px 24px 0 #15a22355;
          transform: scale(1.04);
        }
        100% {
          box-shadow: 0 2px 12px 0 #15a22333;
          transform: scale(1);
        }
      }

      @media (max-width: 480px) {
        .container {
          padding: 18px 4px 0 4px;
        }

        .robot-img {
          width: 120px;
          height: 120px;
        }

        .title {
          font-size: 2rem;
          text-align: center;
          margin-bottom: 0;
        }

        .subtitle {
          font-size: 1.1rem;
          text-align: center;
        }
      }
      
      body {
        text-align: left;
        font-family: "Arial", "Helvetica", sans-serif;
      }

      .desc,
      .result-con,
      .footer,
      .accuracy {
        text-align: left;
      }