```css
.bus-page {
    width: 100%;
}

.bus-intro {
    padding: 32px 20px 24px;
}

.bus-eyebrow {
    margin-bottom: 10px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: #b85c45;
}

.bus-intro h1 {
    margin: 0;
    font-size: clamp(2rem, 8vw, 3rem);
    line-height: 1.05;
    color: #17212b;
}

.bus-intro p {
    max-width: 600px;
    margin: 14px 0 0;
    font-size: 1rem;
    line-height: 1.6;
    color: #5f6870;
}

.bus-board {
    width: 100%;
    margin: 0 0 20px;
    overflow: hidden;
    background: #ffffff;
}

.bus-board iframe {
    display: block;
    width: 100%;
    height: 210px;
    min-height: 210px;
    border: 0;
}

@media (min-width: 700px) {

    .bus-intro {
        padding: 44px 32px 28px;
    }

    .bus-board {
        margin-bottom: 24px;
        border-radius: 16px;
        box-shadow: 0 4px 18px rgba(23, 33, 43, 0.08);
    }

    .bus-board iframe {
        height: 210px;
        min-height: 210px;
    }

}
```