/* 高山集 PC 端开场动效 · 极简高级版
   作用：电脑端显示沉浸式开场视频，文字更轻，少遮挡画面。 */

.pc-intro {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #071d18;
  color: #f9f1d0;
  opacity: 0;
  transition: opacity 0.75s ease;
}

body.pc-intro-active {
  overflow: hidden;
}

body.pc-intro-active .pc-intro {
  display: flex;
  opacity: 1;
}

.pc-intro.pc-intro-leaving {
  opacity: 0;
  pointer-events: none;
}

.pc-intro video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1.08) contrast(1.03) brightness(0.94);
}

.pc-intro::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 50% 42%, rgba(246, 220, 146, 0.12), transparent 34%),
    linear-gradient(90deg, rgba(2, 18, 14, 0.58), transparent 30%, transparent 70%, rgba(2, 18, 14, 0.58)),
    linear-gradient(180deg, rgba(4, 24, 19, 0.24), transparent 42%, rgba(4, 20, 16, 0.58));
  pointer-events: none;
}

.pc-intro-quick {
  position: absolute;
  top: 28px;
  right: 34px;
  z-index: 2;
  padding: 10px 17px;
  border: 1px solid rgba(246, 229, 176, 0.36);
  border-radius: 999px;
  background: rgba(6, 31, 26, 0.3);
  color: rgba(255, 247, 219, 0.82);
  font: inherit;
  font-size: 14px;
  letter-spacing: 0.2em;
  cursor: pointer;
  backdrop-filter: blur(10px);
}

.pc-intro-panel {
  position: relative;
  width: min(680px, calc(100vw - 96px));
  padding: 36px 46px 40px;
  text-align: center;
  border: 1px solid rgba(236, 216, 151, 0.34);
  border-radius: 30px;
  background:
    linear-gradient(180deg, rgba(9, 52, 43, 0.5), rgba(5, 30, 25, 0.38)),
    rgba(8, 36, 31, 0.34);
  box-shadow: 0 26px 82px rgba(0, 0, 0, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
  animation: pcIntroPanelRise 1.25s ease both;
}

.pc-intro-kicker {
  margin-bottom: 15px;
  letter-spacing: 0.42em;
  text-indent: 0.42em;
  font-size: 15px;
  color: rgba(249, 241, 208, 0.78);
}

.pc-intro-title {
  margin: 0;
  font-family: "Noto Serif SC", "STSong", "SimSun", serif;
  font-size: clamp(58px, 7vw, 96px);
  font-weight: 500;
  letter-spacing: 0.26em;
  text-indent: 0.26em;
  line-height: 1.04;
  color: #fff4cc;
  text-shadow: 0 8px 34px rgba(246, 219, 135, 0.24), 0 1px 0 rgba(255, 255, 255, 0.16);
}

.pc-intro-subtitle {
  margin: 22px 0 31px;
  letter-spacing: 0.3em;
  text-indent: 0.3em;
  font-size: 20px;
  color: rgba(255, 247, 219, 0.88);
}

.pc-intro-actions {
  display: flex;
  justify-content: center;
}

.pc-intro-enter {
  min-width: 238px;
  padding: 16px 38px;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(180deg, #fff2c4, #d7b55b);
  color: #173f34;
  font: inherit;
  font-weight: 800;
  letter-spacing: 0.2em;
  cursor: pointer;
  box-shadow: 0 16px 42px rgba(216, 184, 92, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.66);
}

.pc-intro-hint {
  display: none;
  margin-top: 16px;
  font-size: 13px;
  color: rgba(255, 247, 219, 0.72);
}

.pc-intro.pc-intro-needs-tap .pc-intro-hint {
  display: block;
}

@keyframes pcIntroPanelRise {
  from {
    transform: translateY(20px) scale(0.985);
    opacity: 0;
  }
  to {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}

@media (max-width: 899px) {
  .pc-intro {
    display: none !important;
  }
}