*, *::before, *::after { box-sizing: border-box; margin:0; padding:0; }

body { font-family:"Microsoft YaHei", sans-serif; background:#f2f5f9; }

.header {
  height:90px; background:#fff; border-bottom:1px solid #e6e6e6;
  display:flex; align-items:center; padding:0 20px;
}
.header img { height:80px; }
.nav { margin-left:auto; display:flex; gap:15px; font-size:14px; }
.nav a { color:#333; text-decoration:none; line-height:60px; }

.container {
  display:flex; flex-wrap: wrap;
  justify-content: center;
  max-width:1000px; margin:60px auto 0;
  background:#fff; box-shadow:0 2px 8px rgba(0,0,0,0.1);
}
.left-panel, .right-panel {
  flex: 1 1 300px;
  min-width: 300px;
}
.left-panel {
  background: url('https://i.postimg.cc/BQG5Dzqf/falcon.webp') no-repeat center/cover;
  min-height: 200px;
}
.right-panel {
  padding: 40px;
}
.right-panel h1 {
  font-size:24px; color:#333; margin-bottom:20px;
}

.iframe-wrapper {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 ratio */
  overflow: hidden;
}
.iframe-wrapper iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: none;
  display: block;
}

.footer {
  text-align:center; font-size:12px; color:#666;
  background:#f7f7f7; padding:20px 0; margin-top:20px;
}
.footer a { color:#666; text-decoration:none; margin:0 5px; }
.footer .licence { margin-top:5px; }

@media(max-width:768px) {
  .header, .nav a { line-height: normal; }
  .nav { flex-wrap: wrap; gap:10px; }
  .right-panel { padding:20px;}
  .iframe-wrapper { padding-top: 75%; } /* taller for mobile content */
}