.dt-startup { max-width: 600px; margin: 12vh auto; padding: 30px; font-family: Arial, "Microsoft YaHei", sans-serif; color: #19324d; background: #fff; border: 1px solid #dce4ed; border-radius: 12px; line-height: 1.8; }
.dt-startup h1 { font-size: 24px; line-height: 1.5; margin: 0 0 14px; }
.dt-startup p { margin: 12px 0; }
.dt-startup a { color: #2464d8; }
.dt-startup button { border: 0; border-radius: 5px; background: #2f70ef; color: #fff; padding: 10px 18px; cursor: pointer; margin: 0 16px 10px 0; font: inherit; }
.dt-startup code { color: #69798a; font-size: 12px; }
.dt-startup [hidden] { display: none; }