* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "PingFang SC", "微软雅黑", sans-serif;
}
body {
  background: #f7f8fa;
  font-size: 15px;
  color: #333;
}
.container {
  width: 100%;
  max-width: 750px;
  margin: 0 auto;
  padding: 15px;
}
.btn {
  display: block;
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  cursor: pointer;
  margin: 10px 0;
}
.btn-primary {
  background: #1677ff;
  color: #fff;
}
.btn-warn {
  background: #ff7d00;
  color: #fff;
}
.card {
  background: #fff;
  border-radius: 10px;
  padding: 16px;
  margin: 12px 0;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}
input, textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #eee;
  border-radius: 6px;
  margin: 8px 0;
  font-size: 15px;
}
.banner-img {
  width: 100%;
  border-radius: 10px;
  object-fit: cover;
}
.news-img {
  width: 100%;
  border-radius: 6px;
  margin: 10px 0;
}
.time-text {
  color: #999;
  font-size: 13px;
  margin-top: 8px;
}