body {
    font-family: Arial, sans-serif;
    margin: 0;
    background-color: #e9edf5;
    color: #1f2937;
    padding: 24px;
}

header {
    max-width: 900px;
    margin: 0 auto 24px;
    background-color: #1f3a5f;
    color: #fff;
    text-align: center;
    padding: 24px 16px;
    border-radius: 14px;
    border: 1px solid #16304e;
    box-shadow: 0 8px 20px rgba(31, 58, 95, 0.2);
}

main {
    max-width: 900px;
    margin: 0 auto;
    background: #fff;
    padding: 28px;
    border-radius: 14px;
    border: 1px solid #d5dceb;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}

.intro-text {
    max-width: 560px;
    margin: 0 auto 16px;
    padding: 14px 16px;
    font-size: 1.25rem;
    background-color: #f8faff;
    border: 1px solid #d8e1f2;
    border-radius: 12px;
    text-align: center;
    line-height: 1.5;
}

.image-frame {
    max-width: 560px;
    margin: 0 auto;
    padding: 14px;
    background: #f8faff;
    border: 1px solid #d8e1f2;
    border-radius: 12px;
}

.second-image {
    margin-top: 16px;
}

.site-image {
    display: block;
    width: 100%;
    border-radius: 10px;
}