* {
  box-sizing: border-box;
}

html, body {
  padding: 0;
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #0d0d12;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}

#unity-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

#unity-canvas {
  width: 100%;
  height: 100%;
  display: block;
  background: #FFFFFF;
}

/* 首屏加载遮罩 */
#unity-splash-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: opacity 0.4s ease;
}

.splash-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(165deg, #0d0d12 0%, #1a1a24 40%, #15151e 100%);
}

.splash-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.5rem;
  padding: 2rem;
  max-width: 90%;
}

.splash-title {
  font-size: clamp(1.25rem, 4vw, 1.75rem);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.95);
  letter-spacing: 0.05em;
}

/* 进度条区域 */
.progress-wrap {
  width: min(320px, 85vw);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.progress-track {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  overflow: hidden;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.3);
}

.progress-fill {
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, #6366f1 0%, #8b5cf6 50%, #a78bfa 100%);
  box-shadow: 0 0 12px rgba(99, 102, 241, 0.5);
  transition: width 0.15s ease-out;
}

.progress-label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  font-variant-numeric: tabular-nums;
}

#unity-warning {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  padding: 8px 12px;
  font-size: 12px;
  text-align: center;
  display: none;
}