以低成本试错验证高价值假设
.pay-stage{max-width:820px;margin:24px auto;background:linear-gradient(145deg,#0f1e2d,#04060c 70%);c···
.stage-hongmeng{max-width:820px;margin:26px auto;background:radial-gradient(circle at top,#1a2746,#0···