.wechat-open-overlay { display: none; }

.wechat-browser,
.wechat-browser body { overflow: hidden; }

.wechat-browser .wechat-open-overlay {
  position: fixed;
  inset: 0;
  z-index: 2147483647;
  display: block;
  background: rgba(0, 0, 0, .8);
  color: #fff;
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  touch-action: none;
  overscroll-behavior: none;
  -webkit-tap-highlight-color: transparent;
}

.wechat-open-arrow {
  position: absolute;
  top: calc(env(safe-area-inset-top, 0px) + 4px);
  right: 12px;
  width: 156px;
  height: 140px;
  fill: none;
  stroke: #fff;
  stroke-width: 5;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, .28));
}

.wechat-open-copy {
  position: absolute;
  top: calc(env(safe-area-inset-top, 0px) + 145px);
  left: 24px;
  right: 28px;
  max-width: 440px;
  margin-left: auto;
  text-align: right;
  line-height: 1.65;
  text-shadow: 0 2px 12px rgba(0, 0, 0, .35);
}

.wechat-open-copy strong {
  display: block;
  font-size: clamp(20px, 5.8vw, 29px);
  font-weight: 760;
}

.wechat-open-copy p {
  margin: 12px 0 0;
  color: rgba(255, 255, 255, .84);
  font-size: clamp(14px, 3.8vw, 17px);
}

@media (max-height: 420px) {
  .wechat-open-arrow { width: 110px; height: 105px; }
  .wechat-open-copy { top: calc(env(safe-area-inset-top, 0px) + 110px); }
}