body { margin:0; font-family: '微软雅黑', sans-serif; background: linear-gradient(135deg, #ffe0ec 0%, #fff5fa 100%);}
.page { display: flex; height: 100vh; justify-content: center; align-items: center; flex-direction: column;}
.page-img { max-width: 80vw; max-height: 40vh; margin-bottom: 32px; border-radius: 12px; box-shadow: 0 2px 8px #0001; }
.popup, .toast { position: fixed; left: 50%; top: 50%; transform: translate(-50%,-50%); background: #fff; border-radius: 10px; box-shadow: 0 2px 10px #0002; padding: 24px; z-index: 10; max-width: 90vw; box-sizing: border-box;}
.popup { min-width: 220px; }
.popup button { margin: 10px 0; width: 100%; padding: 14px 0; border: none; border-radius: 6px; background: #4caf50; color: #fff; font-size: 18px; }
.toast { background: #333; color: #fff; padding: 12px 24px; border-radius: 20px; font-size: 16px; z-index: 20;}
.mask { position: fixed; left:0; top:0; width:100vw; height:100vh; background:rgba(0,0,0,0.3); z-index:9;}
.next-btn { margin: 40px auto 0 auto; background: #2196f3; color: #fff; border: none;position: relative;left: 50px; border-radius: 6px; padding: 14px 0; width: 80vw; max-width: 320px; font-size: 18px; display: block; text-align: center;}
.popup-title {font-size:18px; margin-bottom:16px;}
@media (max-width: 480px) {
  .popup, .toast { padding: 16px; font-size: 16px; }
  .popup-title { font-size: 16px; }
  .next-btn { font-size: 16px; padding: 12px 0; }
}