/* 注册页样式 */
* { margin: 0; padding: 0; box-sizing: border-box; }
.navbar {
  height: 52px; background: #1e3a5f; display: flex; align-items: center;
  padding: 0 20px; box-shadow: 0 2px 8px rgba(0,0,0,0.18);
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
}
.navbar-brand { font-size: 15px; font-weight: 700; color: #fff; }
body {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #1e3a5f 0%, #2d6a9f 100%);
  font-family: system-ui, -apple-system, sans-serif; padding-top: 52px;
}
.card {
  background: #fff; border-radius: 12px; padding: 40px 36px;
  width: 360px; max-width: 92%; box-shadow: 0 8px 32px rgba(0,0,0,0.18);
}
.logo { text-align: center; margin-bottom: 28px; }
.logo h1 { font-size: 20px; color: #1e3a5f; font-weight: 700; }
.logo p { font-size: 13px; color: #6b7280; margin-top: 4px; }
.form-group { margin-bottom: 18px; }
label { display: block; font-size: 13px; color: #374151; margin-bottom: 6px; font-weight: 500; }
input {
  width: 100%; padding: 10px 12px; border: 1px solid #d1d5db;
  border-radius: 7px; font-size: 14px; outline: none; transition: border-color 0.2s;
}
input:focus { border-color: #2d6a9f; box-shadow: 0 0 0 3px rgba(45,106,159,0.12); }
.hint { font-size: 12px; color: #9ca3af; margin-top: 4px; }
.error {
  background: #fef2f2; border: 1px solid #fca5a5; color: #dc2626;
  border-radius: 7px; padding: 10px 12px; font-size: 13px; margin-bottom: 16px;
}
.btn {
  width: 100%; padding: 11px; background: #2d6a9f; color: #fff; border: none;
  border-radius: 7px; font-size: 15px; font-weight: 600; cursor: pointer;
  transition: background 0.2s; margin-top: 4px;
}
.btn:hover { background: #1e3a5f; }
.footer { text-align: center; margin-top: 20px; font-size: 13px; color: #6b7280; }
.footer a { color: #2d6a9f; text-decoration: none; font-weight: 500; }
.footer a:hover { text-decoration: underline; }