/* layout.css */
/* ============================
   布局与容器
   依赖：无
   ============================ */
#app-root {
  width: 100%;
  max-width: 750px;
  min-height: 100vh;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-bottom: var(--safe-bottom);
}

.hidden {
  display: none !important;
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

.text-center {
  text-align: center;
}

.flex-row {
  display: flex;
  flex-direction: row;
}

.flex-col {
  display: flex;
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

.gap-sm {
  gap: 6px;
}
.gap-md {
  gap: 12px;
}
.gap-lg {
  gap: 20px;
}