.media-split .about-company-video { height: auto; min-width: 0; background: var(--gray-bg); }
.media-split .about-company-video video { width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: contain; background: #0d1014; }
.about-company-video figcaption { padding: 16px 20px; color: var(--muted); font-size: .875rem; }
#certificates { scroll-margin-top: 100px; }
.about-certificate-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
.about-certificate-card { display: flex; flex-direction: column; min-width: 0; padding: 20px; border: 1px solid var(--line); background: var(--white); transition: border-color .2s ease; }
.about-certificate-card:hover { border-color: var(--blue); }
.about-certificate-card:focus-visible { outline: 3px solid var(--blue); outline-offset: 4px; }
.about-certificate-image { display: flex; align-items: center; justify-content: center; height: 240px; margin-bottom: 24px; padding: 12px; background: var(--gray-bg); }
.about-certificate-image img { width: 100%; height: 100%; object-fit: contain; }
.about-certificate-card h3 { margin: 0 0 14px; color: var(--navy); font-size: 1.125rem; line-height: 1.4; }
.about-certificate-card p { margin: 0 0 18px; font-size: 1rem; }
.about-certificate-card .about-certificate-date { margin-top: auto; color: var(--muted); font-size: .875rem; }
.about-certificate-card.is-historical .about-certificate-date { color: #85500c; }
.about-certificate-open { display: flex; justify-content: space-between; gap: 12px; padding-top: 14px; border-top: 1px solid var(--line); color: var(--blue); font-size: .875rem; font-weight: 700; }
@media (max-width: 1100px) { .about-certificate-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .about-certificate-grid { grid-template-columns: minmax(0, 1fr); gap: 20px; } .about-certificate-image { height: 280px; } }