.initial-loading-overlay {
  --loader-center-x: 50cqw;
  --loader-center-y: 50cqh;
  --loader-ring-size: clamp(210px, 13.5cqw, 270px);
  position: fixed;
  z-index: 99997;
  inset: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at var(--loader-center-x) var(--loader-center-y), rgba(7, 24, 29, 0.06) 0 15%, rgba(2, 7, 11, 0.18) 48%, rgba(2, 6, 10, 0.28) 100%),
    rgba(2, 6, 10, 0.16);
  pointer-events: auto;
  isolation: isolate;
  will-change: opacity;
}

.initial-loading-overlay__visual {
  position: absolute;
  left: var(--loader-center-x);
  top: var(--loader-center-y);
  width: var(--loader-ring-size);
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  transform-origin: center;
  will-change: transform, opacity;
}

.initial-loading-overlay__ring {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
  filter: drop-shadow(0 0 7px rgba(63, 177, 177, 0.12));
}

.initial-loading-overlay__aura {
  fill: none;
  stroke: rgba(82, 190, 190, 0.08);
  stroke-width: 12;
  filter: blur(5px);
}

.initial-loading-overlay__trace,
.initial-loading-overlay__progress,
.initial-loading-overlay__sweep {
  fill: none;
  vector-effect: non-scaling-stroke;
  transform-origin: 140px 140px;
}

.initial-loading-overlay__trace {
  stroke-width: 0.7;
  stroke-linecap: round;
}

.initial-loading-overlay__trace--outer {
  stroke: rgba(77, 184, 185, 0.22);
  stroke-dasharray: 0.19 0.12 0.07 0.23 0.13 0.26;
  animation: initial-loader-drift 8s linear infinite;
}

.initial-loading-overlay__trace--inner {
  stroke: rgba(198, 179, 128, 0.13);
  stroke-dasharray: 0.08 0.27 0.16 0.49;
  animation: initial-loader-drift-reverse 11s linear infinite;
}

.initial-loading-overlay__progress {
  stroke: rgba(91, 205, 202, 0.66);
  stroke-width: 1.35;
  stroke-linecap: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  transform: rotate(-90deg);
  filter: drop-shadow(0 0 4px rgba(72, 205, 201, 0.3));
}

.initial-loading-overlay__sweep {
  stroke: rgba(153, 230, 220, 0.25);
  stroke-width: 1.2;
  stroke-linecap: round;
  stroke-dasharray: 0.045 0.955;
  filter: drop-shadow(0 0 5px rgba(86, 218, 211, 0.34));
  animation: initial-loader-sweep 2.8s linear infinite;
}

.initial-loading-overlay__percent {
  position: absolute;
  left: 50%;
  bottom: 13.5%;
  color: rgba(151, 202, 194, 0.58);
  font-family: "Source Han Serif Taichu", "Noto Serif SC", "Songti SC", serif;
  font-size: clamp(10px, 0.72cqw, 13px);
  font-weight: 280;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.12em;
  text-shadow: 0 0 8px rgba(74, 194, 190, 0.2);
  transform: translateX(-50%);
}

.initial-loading-overlay.is-complete {
  opacity: 0;
  pointer-events: none;
  transition: opacity 780ms ease-in-out;
}

@keyframes initial-loader-sweep {
  to { transform: rotate(360deg); }
}

@keyframes initial-loader-drift {
  to { transform: rotate(360deg); }
}

@keyframes initial-loader-drift-reverse {
  to { transform: rotate(-360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .initial-loading-overlay__trace,
  .initial-loading-overlay__sweep { animation: none; }
}