:root {
  --ishtar-paper: #fbfcff;
  --ishtar-lavender: #9c83d7;
  --ishtar-lavender-soft: #c9b7ee;
  --ishtar-sea: #78a9d8;
  --ishtar-mint: #71bda0;
  --ishtar-coral: #e9a3ab;
  --ishtar-gold: #dfb76d;
  --ishtar-muted: #83879a;
}

* {
  box-sizing: border-box;
}

html:has(#__loading_overlay),
body:has(#__loading_overlay) { overflow: hidden; }

#__loading_overlay {
  position: fixed;
  inset: 0;
  z-index: 99999;
  width: 100%;
  min-height: 100svh;
  height: 100dvh;
  display: grid;
  place-items: center;
  padding: max(24px, env(safe-area-inset-top)) max(24px, env(safe-area-inset-right)) max(24px, env(safe-area-inset-bottom)) max(24px, env(safe-area-inset-left));
  overflow: hidden;
  background:
    linear-gradient(rgba(133, 155, 195, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(133, 155, 195, .055) 1px, transparent 1px),
    var(--ishtar-paper);
  background-size: 48px 48px;
  transition: opacity .8s ease, visibility .8s ease;
}

#__loading_overlay::before,
#__loading_overlay::after {
  content: "";
  position: absolute;
  top: 50%;
  width: min(14vw, 190px);
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(156, 131, 215, .24));
}

#__loading_overlay::before { left: 0; }
#__loading_overlay::after { right: 0; transform: rotate(180deg); }

#__loading_overlay.fade_out {
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
}

.__loading_panel {
  position: relative;
  z-index: 1;
  width: min(94vw, 1000px);
  min-height: 480px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transform: translateY(-1.5vh);
}

.__loading_progress {
  width: min(50vw, 350px);
  margin-top: 24px;
}

#__progress_track {
  position: relative;
  width: 100%;
  height: 2px;
  overflow: hidden;
  background: #e8e7f0;
}

#__progress_fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  background: linear-gradient(90deg, var(--ishtar-mint), var(--ishtar-sea) 38%, var(--ishtar-lavender) 68%, var(--ishtar-coral));
  transition: width .28s ease;
}

#__progress_text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

#__loading_tip {
  margin-top: 13px;
  color: var(--ishtar-muted);
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 12px;
  letter-spacing: 0;
  opacity: 0;
  animation: __ishtar_tip_in .65s ease 1s forwards;
}

@keyframes __ishtar_tip_in {
  to { opacity: 1; }
}

@media (max-width: 680px) {
  #__loading_overlay {
    padding: max(16px, env(safe-area-inset-top)) max(8px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left));
  }

  .__loading_panel {
    width: min(100vw, 620px);
    min-height: 420px;
  }

  .__loading_progress {
    width: min(70vw, 300px);
    margin-top: 18px;
  }
}

@media (max-height: 520px) and (orientation: landscape) {
  .__loading_panel {
    min-height: 0;
    height: 100%;
    width: min(82vw, 720px);
  }

  .__loading_signature {
    width: min(72vw, 620px);
  }

  .__loading_progress {
    margin-top: 8px;
  }

  #__loading_tip {
    margin-top: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  #__loading_overlay { transition-duration: .01ms; }
  #__loading_tip { opacity: 1; animation: none; }
}