/* 路径：static/feedback.css */
:root {
  --primary: #4a6bff;
  --bg: #0f172a;
  --fg: #111827;
  --card: #fff;
  --muted: #6b7280;
  --ok: #10b981;
  --err: #ef4444;
}

.fb-hero {
  background: linear-gradient(135deg, var(--bg), #0b1220);
  color: #eaf1ff;
  padding: 64px 24px;
  text-align: center;
}
.fb-hero__inner { max-width: 860px; margin: 0 auto; }
.fb-hero h1 { font-size: 2rem; margin: 0 0 12px; }
.fb-hero .lead { opacity: .9; line-height: 1.8; }
.fb-hero mark { background: rgba(255,255,255,.15); color: #fff; padding: 0 6px; border-radius: 4px; }

.fb-form { padding: 28px 16px 64px; background: #f8fafc; }
.fb-card {
  max-width: 860px; margin: 0 auto; background: var(--card);
  border-radius: 14px; padding: 22px; box-shadow: 0 10px 30px rgba(0,0,0,.08);
}
.fb-card h2 { margin: 6px 0 16px; }

.row { margin: 14px 0; display: flex; flex-direction: column; }
.row label { font-weight: 600; margin-bottom: 6px; }
.row .inline { display: flex; gap: 10px; }
.row select, .row input, .row textarea {
  width: 100%; padding: 10px 12px; border: 1px solid #e5e7eb; border-radius: 10px; font-size: 16px;
}
.row .inline select { max-width: 160px; }
.hint { color: var(--muted); font-size: 12px; margin-top: 6px; }

.btn-primary {
  display: inline-block; padding: 10px 18px; border-radius: 999px; border: 2px solid var(--primary);
  color: var(--primary); background: #fff; font-weight: 700; cursor: pointer;
}
.btn-primary:hover { background: var(--primary); color: #fff; }

.msg { margin-top: 10px; font-size: 14px; }
.msg--ok { color: var(--ok); }
.msg--error { color: var(--err); }

/* 响应式 */
@media (max-width: 680px) {
  .row .inline { flex-direction: column; }
}