/* 匠金台 · 轻量首屏加载 */
:root {
  --jjt-loader-bg: #1a1410;
  --jjt-loader-amber: #c8962e;
  --jjt-loader-accent: #ff5a1b;
}

body.jjt-loader-active {
  overflow: hidden;
}

.jjt-loader {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse 80% 60% at 50% 40%, rgba(200, 150, 46, 0.14) 0%, transparent 55%),
    var(--jjt-loader-bg);
  transition: opacity 0.45s ease, visibility 0.45s ease;
}

.jjt-loader--hide {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.jjt-loader-inner {
  text-align: center;
  padding: 24px;
  max-width: 280px;
}

.jjt-loader-logo {
  position: relative;
  width: 96px;
  height: 96px;
  margin: 0 auto 20px;
}

.jjt-loader-logo img {
  width: 72px;
  height: auto;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: jjt-loader-pulse 1.6s ease-in-out infinite;
}

.jjt-loader-ring {
  position: absolute;
  inset: 0;
  animation: jjt-loader-spin 1.1s linear infinite;
}

.jjt-loader-ring svg {
  width: 100%;
  height: 100%;
}

.jjt-loader-ring circle {
  fill: none;
  stroke: url(#jjt-loader-gradient);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-dasharray: 90 200;
}

.jjt-loader-brand {
  margin: 0 0 6px;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: rgba(250, 246, 240, 0.95);
}

.jjt-loader-slogan {
  margin: 0 0 18px;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: rgba(200, 150, 46, 0.85);
}

.jjt-loader-bar {
  height: 2px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.jjt-loader-bar-fill {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--jjt-loader-amber), var(--jjt-loader-accent));
  transition: width 0.25s ease;
}

@keyframes jjt-loader-spin {
  to { transform: rotate(360deg); }
}

@keyframes jjt-loader-pulse {
  0%, 100% { opacity: 0.88; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.04); }
}

@media (prefers-reduced-motion: reduce) {
  .jjt-loader-logo img,
  .jjt-loader-ring {
    animation: none;
  }

  .jjt-loader--hide {
    transition: none;
  }
}