.edu-section,
.edu-section * {
  box-sizing: border-box;
}

.edu-section h2,
.edu-section p {
  margin: 0;
  padding: 0;
}

.edu-section {
  padding: 20px;
  overflow: hidden;
  background: #000;
  color: #fff;
  font-family: "Raleway", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  text-align: center;
}

.edu-container {
  max-width: 1100px;
  margin: 0 auto;
}

.edu-subtitle {
  display: block;
  margin-bottom: 15px;
  color: #ff5a1f;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
}

.edu-title {
  margin-bottom: 60px !important;
  font-size: clamp(32px, 4.5vw, 60px);
  font-weight: 300;
  line-height: 1.1;
  text-transform: uppercase;
}

.edu-orange { color: #ff5a1f; }

.main-video-wrapper {
  position: relative;
  width: 100%;
  margin-bottom: 40px;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  background: #111;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.8);
  transition: border-color 400ms ease;
}

.main-video-wrapper:hover { border-color: rgba(255, 90, 31, 0.5); }

.shorts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-bottom: 50px;
  gap: 30px;
}

.short-video-item {
  position: relative;
  width: 100%;
  overflow: hidden;
  aspect-ratio: 9 / 16;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  background: #111;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
  transition: all 400ms cubic-bezier(0.165, 0.84, 0.44, 1);
}

.short-video-item:hover {
  border-color: rgba(255, 90, 31, 0.5);
  box-shadow: 0 25px 50px rgba(255, 90, 31, 0.15);
  transform: translateY(-10px);
}

.edu-section iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.edu-footer-text {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 30px !important;
  color: rgba(255, 255, 255, 0.6);
  font-size: 15px;
  gap: 10px;
}

.edu-footer-text::before { color: #ff5a1f; content: '★'; }

.edu-fade-up {
  opacity: 0;
  transform: translateY(40px);
  animation: edu-fade-up 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.edu-delay-2 { animation-delay: 300ms; }
.edu-delay-3 { animation-delay: 500ms; }

@keyframes edu-fade-up { to { opacity: 1; transform: translateY(0); } }

@media (max-width: 900px) { .shorts-grid { gap: 15px; } }

@media (max-width: 600px) {
  .edu-section { padding: 40px 15px; }
  .shorts-grid { grid-template-columns: 1fr; max-width: 320px; margin: 0 auto 40px; }
  .edu-title { margin-bottom: 40px !important; }
}