body{
  margin:0;
  background:#111;
  color:#fff;
  font-family:Arial,sans-serif;
}

.topbar{
  height:60px;
  background:#1a1a1a;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 25px;
  border-bottom:1px solid #333;
}

.logo{
  color:#ffcc00;
  text-decoration:none;
  font-size:28px;
  font-weight:bold;
}

.nav a{
  color:#ddd;
  text-decoration:none;
  margin-left:18px;
  font-size:15px;
}

.container{
  max-width:1200px;
  margin:30px auto;
  padding:0 20px;
}

.video-title{
  font-size:34px;
  line-height:1.3;
  margin-bottom:25px;
}

.video-box{
  margin-bottom:25px;
}

.video-box iframe{
  width:100%;
  max-width:900px;
  height:520px;
  border:none;
  background:#000;
  display:block;
}

.follow-area{
  margin:25px 0;
}

.follow-btn{
  display:inline-block;
  background:#ffcc00;
  color:#000;
  text-decoration:none;
  padding:14px 28px;
  border-radius:8px;
  font-weight:bold;
  font-size:18px;
}

.section-title{
  font-size:28px;
  margin:40px 0 20px;
}

.related-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
}

.related-card{
  background:#1b1b1b;
  border-radius:10px;
  overflow:hidden;
  text-decoration:none;
  color:#fff;
  transition:0.2s;
}

.related-card:hover{
  transform:translateY(-4px);
}

.related-card img{
  width:100%;
  height:160px;
  object-fit:cover;
  display:block;
}

.related-title{
  padding:12px;
  font-size:15px;
  line-height:1.4;
}

.footer{
  margin-top:60px;
  padding:35px;
  text-align:center;
  color:#777;
  border-top:1px solid #333;
}

@media(max-width:900px){

  .related-grid{
    grid-template-columns:repeat(2,1fr);
  }

  .video-box iframe{
    height:280px;
  }

  .video-title{
    font-size:24px;
  }

}