.interchange-config-root {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 12px;
  height: 100%;
  min-height: 760px;
  color: #dbe5ef;
}
.interchange-config-sidebar,
.interchange-config-main {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.interchange-config-card {
  background: #0f1724;
  border: 1px solid #2c3a4f;
  border-radius: 10px;
  padding: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,.18);
}
.interchange-config-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(280px, 1fr));
  gap: 12px;
}
.interchange-config-title {
  font-size: 18px;
  font-weight: 700;
  color: #9cc5ff;
}
.interchange-config-subtitle {
  margin-top: 6px;
  color: #9aa8ba;
  font-size: 13px;
}
.interchange-config-section-label {
  font-weight: 700;
  margin-bottom: 10px;
  color: #9cc5ff;
}
.interchange-config-card label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 10px;
  font-size: 13px;
}
.interchange-config-card label.checkbox {
  flex-direction: row;
  align-items: center;
}
.interchange-config-card input,
.interchange-config-card select {
  background: #182334;
  color: #e6edf5;
  border: 1px solid #31455f;
  border-radius: 8px;
  padding: 8px 10px;
}
.interchange-config-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.interchange-config-btn {
  background: #182334;
  color: #e6edf5;
  border: 1px solid #31455f;
  border-radius: 8px;
  padding: 8px 10px;
  display: inline-flex;
  gap: 8px;
  align-items: center;
  cursor: pointer;
}
.interchange-config-btn:hover { background: #1e2d41; }
.interchange-config-pre {
  background: #09111a;
  border: 1px solid #243247;
  border-radius: 8px;
  padding: 10px;
  font-size: 12px;
  white-space: pre-wrap;
}
.ok { color: #58d68d; }
.bad { color: #ff8585; }
.ic-hidden { display: none; }
.ic-icon svg { width: 16px; height: 16px; }
@media (max-width: 1200px) {
  .interchange-config-root { grid-template-columns: 1fr; }
  .interchange-config-grid { grid-template-columns: 1fr; }
}