.cunam-about-video {
    margin: 0 0 clamp(28px, 5vw, 52px);
    padding: clamp(16px, 2.4vw, 26px);
    border: 1px solid rgba(77, 165, 153, .22);
    border-radius: 20px;
    background: linear-gradient(145deg, #f5fbfa, #eef6f7);
    box-shadow: 0 18px 44px rgba(15, 49, 56, .1);
}

.cunam-about-video-heading { margin-bottom: 16px; }
.cunam-about-video-heading span {
    display: block;
    margin-bottom: 5px;
    color: #31877d;
    font-size: .75rem;
    font-weight: 800;
    letter-spacing: .09em;
    text-transform: uppercase;
}
.cunam-about-video-heading h2 { margin: 0; color: #173f4b; font-size: clamp(1.3rem, 2.2vw, 1.8rem); }
.cunam-about-video video {
    display: block;
    width: 100%;
    max-height: min(68vh, 720px);
    aspect-ratio: 16 / 9;
    border-radius: 14px;
    background: #071a22;
    object-fit: contain;
}

@media (max-width: 640px) {
    .cunam-about-video { margin-left: -4px; margin-right: -4px; padding: 10px; border-radius: 15px; }
    .cunam-about-video-heading { padding: 5px 4px 0; }
    .cunam-about-video video { border-radius: 10px; }
}