/* ============================================================
   动画系统 v1.0 — Hero 光斑漂移 + 滚动揭示 + 各类微交互
   依赖：design-tokens.css
   ============================================================ */

/* ─────────────── 1. Hero 光斑漂移 ─────────────── */
@keyframes dm-glow-drift {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(8%, -5%) scale(1.05); }
  100% { transform: translate(-5%, 8%) scale(0.98); }
}

/* ─────────────── 2. 价格脉冲（实时数据高亮） ─────────────── */
@keyframes dm-pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.65; }
}
.dm-pulse {
  animation: dm-pulse 2s ease-in-out infinite;
}

/* ─────────────── 3. fade-up（滚动揭示，无 AOS 时兜底）─────────────── */
@keyframes dm-fade-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.dm-fade-up {
  animation: dm-fade-up var(--duration-slow) var(--ease-smooth) both;
}

/* ─────────────── 4. fade-in 简单淡入 ─────────────── */
@keyframes dm-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.dm-fade-in {
  animation: dm-fade-in var(--duration-slow) var(--ease-smooth) both;
}

/* ─────────────── 5. SVG 路径绘制（特性图标） ─────────────── */
@keyframes dm-draw-path {
  to { stroke-dashoffset: 0; }
}
.dm-svg-draw path {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: dm-draw-path 2s var(--ease-smooth) forwards;
}

/* ─────────────── 6. 神经网络节点连线脉冲 ─────────────── */
@keyframes dm-network-pulse {
  0%, 100% {
    opacity: 0.3;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.15);
  }
}
.dm-network-node {
  animation: dm-network-pulse 3s ease-in-out infinite;
}
.dm-network-node:nth-child(2) { animation-delay: 0.5s; }
.dm-network-node:nth-child(3) { animation-delay: 1s; }
.dm-network-node:nth-child(4) { animation-delay: 1.5s; }

/* ─────────────── 7. 数字高亮闪现（CountUp 后高亮）─────────────── */
@keyframes dm-flash {
  0%   { background-color: var(--brand-primary-soft); }
  100% { background-color: transparent; }
}
.dm-flash {
  animation: dm-flash 1.5s ease-out;
}

/* ─────────────── 8. 加载思维链 dots ─────────────── */
@keyframes dm-thinking {
  0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
  40%           { opacity: 1;   transform: scale(1); }
}
.dm-thinking {
  display: inline-flex;
  gap: 4px;
}
.dm-thinking span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-primary);
  animation: dm-thinking 1.4s ease-in-out infinite;
}
.dm-thinking span:nth-child(2) { animation-delay: 0.16s; }
.dm-thinking span:nth-child(3) { animation-delay: 0.32s; }

/* ─────────────── 9. AOS 自定义动画（覆盖 AOS 默认）─────────────── */
[data-aos="dm-fade-up"] {
  opacity: 0;
  transform: translateY(20px);
  transition-property: opacity, transform;
  transition-timing-function: var(--ease-smooth);
}
[data-aos="dm-fade-up"].aos-animate {
  opacity: 1;
  transform: translateY(0);
}

/* ─────────────── 10. 工具类 —— 动画延迟 ─────────────── */
.dm-delay-100 { animation-delay: 100ms !important; }
.dm-delay-200 { animation-delay: 200ms !important; }
.dm-delay-300 { animation-delay: 300ms !important; }
.dm-delay-400 { animation-delay: 400ms !important; }
.dm-delay-500 { animation-delay: 500ms !important; }