.custom-underline {
        display: inline-block;
        border-bottom: 1px solid #000;
        padding-bottom: 5px;
        margin-bottom: 10px;
    }

    #divide {
        border: none;
        height: 2px;
        color: #d3d3d3;
        background-color: #666;
        margin-top: -12px;
    }

    #divide-2 {
        border: none;
        height: 1px;
        color: #d3d3d3;
        background-color: #666;
        margin-top: -10px;
    }

    .sticky-1 {
        position: sticky;
        top: 60px;
        background-color: white;
    }

    #para {
        text-align: justify;
    }

    .im {
        border-radius: 7px;
        width: 100%;
        margin: auto;
    }

    .b {
        font-weight: bold;
    }

    .colo {
        color: red;
    }

    .txd {
        text-decoration: none;
    }

    .unified-btn {
        background-color: red;
        color: white;
        font-size: 16px;
        font-weight: bold;
        border: none;
        padding: 10px 20px;
        border-radius: 8px;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        transition: background-color 0.3s;
    }

    .unified-btn i {
        font-size: 18px;
    }

    #floating-tts {
        position: fixed;
        bottom: 20px;
        right: 20px;
        background: rgba(200, 200, 200, 0.95);
        padding: 15px;
        border-radius: 10px;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 10px;
        transition: opacity 0.5s ease, visibility 0.5s ease;
    }

    .hidden {
        opacity: 0;
        visibility: hidden;
    }

    #mini-volume-slider {
        width: 150px;
        accent-color: red;
    }

    .paragraph-highlight {
        background-color: lightgray;
        border-radius: 4px;
        padding: 5px;
        transition: background-color 0.3s ease-in-out;
    }

    @keyframes blink {
        0% {
            opacity: 1;
        }

        50% {
            opacity: 0.3;
        }

        100% {
            opacity: 1;
        }
    }

    .dots span {
        animation: blink 1.5s infinite alternate;
    }

    .dots span:nth-child(2) {
        animation-delay: 0.3s;
    }

    .dots span:nth-child(3) {
        animation-delay: 0.6s;
    }

h3.faq-title, h2.takeaway_title {
    color: #FF1628;
    font-size: 2.4rem;
    border-bottom: 1px solid #000;
    padding-bottom: 10px;
}
.ai-overview {
    padding-top: 10px;
}