/* ========================================
   布局组件
   ======================================== */

.app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 18px 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  height: 100%;
}

/* Header */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel), transparent);
  box-shadow: var(--shadow);
}

header .title {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 220px;
}

header h1 {
  font-size: 19px;
  line-height: 1.4;
  margin: 0;
  letter-spacing: 0.2px;
  font-weight: 650;
}

header .sub {
  font-size: 12px;
  color: var(--muted);
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

/* Main content area */
.main {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: 1.45fr 0.85fr;
  gap: 14px;
}

/* Panel */
.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel), transparent);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 12px;
  border-bottom: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .panel-head {
  background: rgba(0, 0, 0, 0.03);
}

.panel-head .label {
  font-size: 12.5px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.panel-head .right {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Responsive */
@media (max-width: 960px) {
  .main {
    grid-template-columns: 1fr;
  }

  header {
    align-items: flex-start;
  }

  header .title {
    min-width: unset;
  }

  .actions {
    justify-content: flex-start;
  }
}