:root {
  --vh: 100vh;
}

* {
  box-sizing: border-box;
}

body {
  background: #f6f7f8;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

.taikong {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  height: var(--vh);
  min-height: 100vh;
  padding: 20px;
}

.wechat-card {
  background: #fff;
  max-width: 428px;
  width: 100%;
  max-height: 569px;
  border-radius: 16px;
  padding: 24px 36px 20px 36px;
  display: flex;
  flex-direction: column;
  margin: auto;
  align-items: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.qrcode {
  width: 256px;
  height: 256px;
  display: flex;
  border-radius: 8px;
}

.tips {
  font-size: 14px;
  color: #000;
  opacity: 0.5;
  margin-top: 8px;
}

.taikong-card {
  width: 100%;
  display: flex;
  margin-top: 16px;
  background: #F7F7F7;
  padding: 18px;
  border-radius: 16px;
  align-items: center;
}

.taikong-head {
  width: 48px;
  height: 48px;
  background-image: url(https://www.phprun.cn/wp-content/uploads/2025/03/WechatIMG10929.png);
  border-radius: 68px;
  background-size: contain;
  margin-right: 16px;
  flex-shrink: 0;
}

.taikong-info {
  flex: 1;
  min-width: 0;
}

.taikong-name {
  font-weight: bold;
  font-size: 16px;
  margin-bottom: 4px;
}

.taikong-description {
  font-size: 12px;
  color: #000;
  opacity: 0.5;
  line-height: 1.4;
}

a.help {
  font-size: 14px;
  color: #000;
  opacity: 0.5;
  text-decoration: none;
  margin: 20px 0;
  transition: opacity 0.3s ease;
}

a.help:hover {
  opacity: 0.8;
}

a.help:visited {
  color: #000;
}

/* 响应式设计 */
@media (max-width: 480px) {
  .wechat-card {
    padding: 20px;
    margin: 10px;
  }
  
  .qrcode {
    width: 200px;
    height: 200px;
  }
  
  .taikong {
    padding: 10px;
  }
}

@media (max-width: 375px) {
  .qrcode {
    width: 180px;
    height: 180px;
  }
}