/* login.html / register.html 认证页样式（公共样式见 css/common.css） */
body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.auth-card {
  width: 100%;
  max-width: 400px;
  background: rgba(255, 255, 255, 0.92);
  border-radius: 18px;
  padding: 36px 30px;
  box-shadow: 0 10px 40px rgba(20, 80, 180, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.65);
}

/* 认证卡片内的统一标题区 */
.auth-header {
  margin-bottom: 20px;
  padding: 14px 16px;
}
.auth-header .header-row h2 {
  font-size: 24px;
}
.auth-header .header-desc {
  margin-top: 6px;
}

.auth-card input {
  margin-bottom: 14px;
}

.auth-card .btn {
  width: 100%;
  padding: 12px;
  font-size: 16px;
}

.hint {
  font-size: 13px;
  color: #8a919f;
  margin: -8px 0 14px 2px;
}

.register-link {
  display: block;
  text-align: center;
  margin-top: 14px;
  color: #1677ff;
  text-decoration: none;
  font-size: 14px;
}
.register-link:hover { text-decoration: underline; }

.back {
  display: block;
  text-align: center;
  margin-top: 16px;
  color: #1677ff;
  text-decoration: none;
  font-size: 14px;
}
.back:hover { text-decoration: underline; }

/* 手机适配 */
@media (max-width: 480px) {
  .auth-card { padding: 28px 20px; }
  .auth-header { padding: 12px 14px; }
}