/* CHHES 滚动显现 + Hero 视差 — 需配合 chhes-animations.js */

[data-animate] {
  opacity: 0;
  transition: opacity 0.75s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    transform 0.75s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

[data-animate='fade-up'] { transform: translateY(40px); }
[data-animate='fade-down'] { transform: translateY(-40px); }
[data-animate='fade-scale'] { transform: scale(0.96); }

[data-animate].animated {
  opacity: 1;
  transform: none;
}

[data-delay='100'] { transition-delay: 0.1s; }
[data-delay='200'] { transition-delay: 0.2s; }
[data-delay='300'] { transition-delay: 0.3s; }
[data-delay='400'] { transition-delay: 0.4s; }

.parallax-container { overflow: hidden; position: relative; }
.parallax-bg { will-change: transform; }

@media (prefers-reduced-motion: reduce) {
  [data-animate] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .parallax-bg { transform: none !important; }
  .page-loader { display: none !important; }
  .split-text .char {
    opacity: 1;
    transform: none;
    animation: none;
  }
}

/* 首页 Hero 高级动效 */
.page-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--chhes-bg-primary, #f3f1ec);
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

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

.loader-logo {
  font-size: clamp(32px, 6vw, 48px);
  font-weight: 200;
  letter-spacing: 0.3em;
  color: var(--chhes-text-primary, #111);
  animation: chhesLogoReveal 1.5s ease forwards;
}

.loader-progress {
  position: absolute;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 1px;
  background: rgba(17, 17, 17, 0.12);
  overflow: hidden;
}

.loader-progress-bar {
  width: 0;
  height: 100%;
  background: var(--chhes-text-primary, #111);
  animation: chhesLoadProgress 1.2s ease forwards;
}

@keyframes chhesLogoReveal {
  0% { opacity: 0; letter-spacing: 1em; filter: blur(10px); }
  50% { opacity: 1; letter-spacing: 0.3em; filter: blur(0); }
  100% { opacity: 1; letter-spacing: 0.3em; }
}

@keyframes chhesLoadProgress {
  to { width: 100%; }
}

.split-text { display: inline-block; }
.split-text--static .char,
.split-text.split-text--static { opacity: 1; transform: none; }

.split-text .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(50px) rotate(10deg);
  animation: chhesCharReveal 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

@keyframes chhesCharReveal {
  to { opacity: 1; transform: translateY(0) rotate(0); }
}

.magnetic-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.magnetic-btn-inner {
  position: relative;
  z-index: 1;
  transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}