/* 与 web_official 一致的 Page Loader - MDB PRIME logo 动画 */

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  display: none !important;
  transform: scale(0.95);
}

.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #000000;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    visibility 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  transform: scale(1) translateZ(0);
  will-change: opacity, transform;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.loader-logo-container {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2;
  width: 100%;
  height: 100%;
}

.loader-logo-wrapper {
  position: relative;
  width: 600px;
  height: 200px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.loader-logo-part {
  position: absolute;
  width: 180px;
  height: 180px;
  object-fit: contain;
  object-position: center;
  filter: drop-shadow(0 0 30px rgba(0, 212, 170, 0.5));
  transform-origin: center center;
}

.loader-logo-mdb {
  opacity: 0;
  transform: translateX(0) scale(1);
  animation: mdbMove 2.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.loader-logo-words {
  opacity: 0;
  transform: translateX(0) scale(1);
  animation: wordsMove 2.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes mdbMove {
  0% {
    opacity: 0;
    transform: translateX(0) scale(1);
  }
  20% {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
  50% {
    opacity: 1;
    transform: translateX(-80px) scale(1);
  }
  100% {
    opacity: 1;
    transform: translateX(-80px) scale(1);
  }
}

@keyframes wordsMove {
  0%, 20% {
    opacity: 0;
    transform: translateX(0) scale(1);
  }
  50% {
    opacity: 1;
    transform: translateX(80px) scale(1);
  }
  100% {
    opacity: 1;
    transform: translateX(80px) scale(1);
  }
}

@media (max-width: 768px) {
  .loader-logo-wrapper {
    width: 100%;
    max-width: 500px;
    height: 150px;
    padding: 0 20px;
  }
  .loader-logo-part {
    width: 120px;
    height: 120px;
  }
  @keyframes mdbMove {
    0% { opacity: 0; transform: translateX(0) scale(1); }
    20% { opacity: 1; transform: translateX(0) scale(1); }
    50% { opacity: 1; transform: translateX(-50px) scale(1); }
    100% { opacity: 1; transform: translateX(-50px) scale(1); }
  }
  @keyframes wordsMove {
    0%, 20% { opacity: 0; transform: translateX(0) scale(1); }
    50% { opacity: 1; transform: translateX(50px) scale(1); }
    100% { opacity: 1; transform: translateX(50px) scale(1); }
  }
}

@media (max-width: 480px) {
  .loader-logo-wrapper {
    width: 100%;
    max-width: 100%;
    height: 120px;
    padding: 0 15px;
  }
  .loader-logo-part {
    width: 100px;
    height: 100px;
  }
  @keyframes mdbMove {
    0% { opacity: 0; transform: translateX(0) scale(1); }
    20% { opacity: 1; transform: translateX(0) scale(1); }
    50% { opacity: 1; transform: translateX(-40px) scale(1); }
    100% { opacity: 1; transform: translateX(-40px) scale(1); }
  }
  @keyframes wordsMove {
    0%, 20% { opacity: 0; transform: translateX(0) scale(1); }
    50% { opacity: 1; transform: translateX(40px) scale(1); }
    100% { opacity: 1; transform: translateX(40px) scale(1); }
  }
}