body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding-bottom: 0;
}
main, .main, #main, .page-content, .content {
  flex: 1 0 auto;
}
.footer {
  width: 100%;
  background: #f8f9fb;
  border-top: 1.5px solid #e0e3ea;
  padding: 24px 0 16px 0;
  margin-top: 48px;
  font-size: 15px;
  color: #666;
  box-sizing: border-box;
}
.beian-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}
.beian-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  padding: 8px 18px;
  margin: 4px 0;
  transition: box-shadow 0.2s;
}
.beian-item img {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  object-fit: cover;
  background: #f0f0f0;
}
.beian-item a {
  color: #666;
  text-decoration: none;
  transition: color 0.2s;
}
.beian-item a:hover {
  color: #1976d2;
}
.beian-item .status {
  color: #1976d2;
  font-weight: 500;
}
@media (max-width: 600px) {
  .footer {
    font-size: 13px;
    padding: 18px 0 12px 0;
  }
  .beian-container {
    flex-direction: column;
    gap: 12px;
  }
  .beian-item {
    padding: 8px 12px;
    font-size: 13px;
  }
  .beian-item img {
    width: 18px;
    height: 18px;
  }
}
@media (max-width: 600px) {
  .footer {
      padding: 20px 8px 50px 4px; 
      font-size: 20px; 
      text-align: center;
      color: #bbb;
      border-radius: 12px 12px 0 0;
      box-shadow: 0 -2px 8px rgba(0,0,0,0.08);
  }
  .footer a {
      color: #4fa3ff;
      text-decoration: underline;
      margin: 0 6px;
      font-size: 13px;
  }
  .footer .footer-links {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px;
      margin-bottom: 8px;
  }
  .footer .footer-links a {
      padding: 2px 8px;
       border-radius: 6px;
       background: rgba(255,255,255,0.04);
  }
  .footer .footer-copy {
      font-size: 12px;
      color: #888;
      margin-top: 6px;
    }
}