/* 前台首页占位 */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #1f2937;
  background: #ffffff;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.front-wrap { width: 100%; max-width: 500px; margin: 0 auto; }
.front-box {
  background: #fff;
  border-radius: 14px;
  padding: 50px 36px;
  text-align: center;
  box-shadow: 0 10px 40px rgba(15, 23, 42, .06);
}
.front-logo {
  width: 60px;
  height: 60px;
  border-radius: 14px;
  background: #3b82f6;
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.front-box h1 { font-size: 26px; margin: 0; font-weight: 600; }
.front-box p { color: #6b7280; margin: 8px 0 28px; }
.front-links { display: flex; gap: 12px; justify-content: center; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border-radius: 7px;
  border: 1px solid transparent;
  font-size: 14px;
  text-decoration: none;
  cursor: pointer;
}
.btn-primary { background: #3b82f6; color: #fff; }
.btn-primary:hover { background: #2563eb; }
.btn-line { background: #fff; border-color: #e5e7eb; color: #4b5563; }
.btn-line:hover { border-color: #3b82f6; color: #3b82f6; }