body {
    margin: 0;
    background-color: #fde9e5;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.banner-container {
    width: 100%;
    max-width: 2100px;
    padding: 10px;
    box-sizing: border-box;
}

.responsive-banner {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
}