/* Reserve separate desktop rails; narrow screens use normal document flow. */
.ad-top { width: auto; min-height: 100px; background: #f8f9fa; }
.ad-top .banner1 { width: 100%; max-width: 970px; margin: 0 auto; }
.ad-bottom { max-width: 970px; padding: 24px 12px; }
.ad-left, .ad-corner { margin: 24px auto; width: min(100% - 32px, 300px); background: #fff; }
.ad-left { min-height: 250px; }
.ad-corner { min-height: 250px; }
@media (min-width: 1440px) {
    body.has-launch-ads > .content,
    body.has-launch-ads > .ad-top { margin-right: 324px; }
    .ad-corner { position: fixed; right: 12px; bottom: 24px; width: 300px; margin: 0; }
}
@media (min-width: 1680px) {
    body.has-launch-ads > .content,
    body.has-launch-ads > .ad-top { margin-left: 184px; }
    .ad-left { position: fixed; left: 12px; top: 50%; transform: translateY(-50%); width: 160px; height: 600px; margin: 0; }
}