body {
  background: #f6f7fb;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

.hero {
  min-height: 240px;
  border-radius: 12px;
}

.card-title {
  font-weight: 600;
}

footer {
  border-top: 1px solid #eee;
  padding: 20px 0;
}

pre {
  white-space: pre-wrap;
  word-break: break-all;
}

input[name="captcha"] {
  height: 50px; /* 和图片高度一致 */
  font-size: 28px; /* 字体大小匹配 */
  letter-spacing: 4px;
}

/* 角标样式 */
.badge-corner {
  position: absolute;
  right: 0;
  top: 0;
}

.badge-corner .tag {
  background: #0d6efd;
  color: #fff;
  padding: 6px 10px;
  border-bottom-left-radius: 8px;
  font-size: 0.75rem;
}

.badge-corner .tag.hot {
  background: #dc3545;
}

.badge-corner .tag.new {
  background: #0d6efd;
}