/* 首页视频 Hero 区 */
.hero {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  color: #fff;
}

.hero video {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  transform: translate(-50%, -50%);
  object-fit: cover;
  z-index: -2;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(rgba(0,0,0,.4), rgba(0,0,0,.55));
  z-index: -1;
}

.hero-content h1 {
  font-size: 46px;
  margin-bottom: 18px;
}

.hero-content p {
  font-size: 18px;
  line-height: 1.6;
  opacity: 0.95;
}

.hero-content .cta {
  margin-top: 32px;
  display: inline-block;
  padding: 12px 36px;
  background: #fff;
  color: #000;
  border-radius: 30px;
  text-decoration: none;
  font-size: 15px;
}

/* 移动端 */
@media (max-width: 768px) {
  .hero-content h1 { font-size: 32px; }
}