/* ============================================
   九紫数智官网 — 动画 v1.0
   CSS keyframes + scroll-triggered
   ============================================ */

/* ---------- 基础动画 ---------- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(.9); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes countUp {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ---------- 浮动/光效 ---------- */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: .6; }
}

@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 20px rgba(229,0,127,.3); }
  50%      { box-shadow: 0 0 40px rgba(229,0,127,.5); }
}

/* ---------- Scroll 触发状态 ---------- */
.reveal {
  opacity: 0;
  transition: all .6s var(--ease);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal--up    { transform: translateY(40px); }
.reveal--left  { transform: translateX(-40px); }
.reveal--right { transform: translateX(40px); }
.reveal--scale { transform: scale(.9); }

/* 延迟序列 */
.reveal:nth-child(1) { transition-delay: 0s; }
.reveal:nth-child(2) { transition-delay: .1s; }
.reveal:nth-child(3) { transition-delay: .2s; }
.reveal:nth-child(4) { transition-delay: .3s; }
.reveal:nth-child(5) { transition-delay: .4s; }
.reveal:nth-child(6) { transition-delay: .5s; }

/* ---------- 页面过渡 ---------- */
.page-enter {
  animation: fadeIn .4s var(--ease) both;
}