* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background: #0f172a;
  color: #0b1220;
}
.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 14px 36px;
}
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 14px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 14px;
  color: #fff;
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.brand .title {
  font-weight: 800;
  letter-spacing: 0.2px;
}
.brand .sub {
  font-size: 12px;
  opacity: 0.85;
}
.btn {
  appearance: none;
  border: 0;
  border-radius: 10px;
  padding: 10px 12px;
  cursor: pointer;
  font-weight: 700;
  background: #ff6b3b;
  color: #fff;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn.secondary {
  background: rgba(255,255,255,0.14);
}
.btn[disabled],
button.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}
.btn[disabled]:hover,
button.btn:disabled:hover {
  filter: none;
}
.card {
  margin-top: 14px;
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 10px 26px rgba(0,0,0,0.28);
  overflow: hidden;
}
.card-hd {
  padding: 14px 16px;
  border-bottom: 1px solid #eef2f7;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.card-hd h1 {
  font-size: 18px;
  margin: 0;
}
.card-hd .hint {
  font-size: 12px;
  color: #64748b;
}
.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding: 14px 16px 16px;
}
@media (max-width: 860px) {
  .grid { grid-template-columns: 1fr; }
}
textarea, input, select {
  width: 100%;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 12px;
  font-size: 14px;
  line-height: 1.6;
  outline: none;
}
textarea { min-height: 260px; resize: vertical; }
.row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.row .btn { padding: 10px 12px; }
.msg {
  padding: 10px 12px;
  border-radius: 12px;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  color: #0f172a;
  font-size: 13px;
  line-height: 1.6;
}
.msg.ok { background: #ecfeff; border-color: #a5f3fc; }
.msg.err { background: #fff1f2; border-color: #fecdd3; }