* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; background: #f5f5f7; color: #222; }

.topbar {
  background: #1e2533; color: #eee;
  padding: 12px 24px;
  display: flex; align-items: center; gap: 16px;
  box-shadow: 0 1px 4px rgba(0,0,0,.2);
}
.topbar h1 { margin: 0; font-size: 1.1em; font-weight: 600; }
.topbar .user-info { margin-left: auto; color: #c8d1e0; }
.topbar .user-info b { color: #fff; }
.topbar a { color: #93b8ff; margin-left: 12px; text-decoration: none; }
.topbar a:hover { color: #fff; }

.content { padding: 24px; max-width: 1400px; margin: 0 auto; }

.login-form {
  max-width: 360px; margin: 80px auto;
  background: #fff; padding: 28px;
  border-radius: 8px; box-shadow: 0 2px 12px rgba(0,0,0,.08);
}
.login-form h2 { margin: 0 0 20px 0; text-align: center; }
.login-form label { display: block; margin-bottom: 14px; font-size: 14px; color: #444; }
.login-form input {
  width: 100%; padding: 10px 12px; margin-top: 4px;
  border: 1px solid #d0d6df; border-radius: 4px; font-size: 14px;
}
.login-form input:focus { outline: none; border-color: #4080ff; }
.login-form button {
  width: 100%; padding: 11px; margin-top: 6px;
  background: #1e2533; color: #fff; border: 0; border-radius: 4px;
  font-size: 15px; cursor: pointer;
}
.login-form button:hover { background: #2a3349; }
.login-form .hint { color: #888; font-size: 12px; margin-top: 16px; text-align: center; }

.error { color: #c00; background: #fee; padding: 8px 12px; border-radius: 4px; margin: 0 0 14px 0; }

.placeholder { background: #fff; padding: 24px; border-radius: 8px; box-shadow: 0 1px 4px rgba(0,0,0,.05); }

/* 红字校验提示 */
.field-error { color: #c00 !important; }
input.invalid, select.invalid, textarea.invalid { border-color: #c00 !important; background: #fff5f5; }
.field-hint { color: #888; font-size: 12px; margin-top: 2px; }
.field-hint.error { color: #c00; }