body{margin:0;font-family:Arial;}
.banner{background:#333;color:#fff;padding:20px;text-align:center;}
.container{display:flex;}
.sidebar{width:200px;background:#f4f4f4;padding:15px;}
.sidebar ul{list-style:none;padding:0;}
.sidebar ul li{margin:10px 0;}
.sidebar ul li a{text-decoration:none;color:#333;}
main{flex:1;padding:20px;}
.ad{width:250px;background:#eee;text-align:center;padding:10px;}
.ad-slot{margin-bottom:15px;} .ad-slot img{max-width:100%;height:auto;display:block;margin:0 auto;}
footer{background:#333;color:#fff;text-align:center;padding:10px;}
.gallery{display:flex;flex-wrap:wrap;gap:10px;} .gallery img{width:150px;height:auto;display:block;}
.audio-block{margin-bottom:20px;} .audio-block h3{margin:5px 0;} .audio-block p{margin:5px 0 15px;}