/* ============================================
   动画 / 动效样式
   ============================================ */

/* --- 关键帧定义 --- */
@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(2.5); opacity: 0; }
}

@keyframes scroll-bounce {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(10px); opacity: 0.3; }
}

@keyframes shine {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes float-rotate {
  0% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(5deg); }
  100% { transform: translateY(0) rotate(0deg); }
}

@keyframes glow-pulse {
  0%, 100% { filter: drop-shadow(0 0 8px rgba(6, 182, 212, 0.4)); }
  50% { filter: drop-shadow(0 0 24px rgba(6, 182, 212, 0.8)); }
}

@keyframes spin-slow {
  to { transform: rotate(360deg); }
}

@keyframes slide-up {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slide-down {
  from { opacity: 0; transform: translateY(-30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slide-left {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slide-right {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scale-in {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes flip-in {
  from { opacity: 0; transform: perspective(600px) rotateY(-15deg); }
  to { opacity: 1; transform: perspective(600px) rotateY(0); }
}

@keyframes wave {
  0%, 100% { d: path("M 0,50 Q 25,30 50,50 T 100,50 T 150,50 T 200,50"); }
  50% { d: path("M 0,50 Q 25,70 50,50 T 100,50 T 150,50 T 200,50"); }
}

@keyframes flow-dash {
  to { stroke-dashoffset: -200; }
}

@keyframes flow-dot {
  0% { offset-distance: 0%; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { offset-distance: 100%; opacity: 0; }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

@keyframes blink-cursor {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

@keyframes typing-cursor {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes draw-line {
  from { stroke-dashoffset: 1000; }
  to { stroke-dashoffset: 0; }
}

@keyframes bar-fill {
  from { width: 0; }
}

@keyframes count-up {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes ticker {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@keyframes rotate-x-3d {
  0% { transform: perspective(1200px) rotateY(0deg); }
  100% { transform: perspective(1200px) rotateY(360deg); }
}

@keyframes energy-pulse {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.05); opacity: 1; }
}

@keyframes particle-rise {
  0% { transform: translateY(100%) translateX(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-100vh) translateX(40px); opacity: 0; }
}

@keyframes chart-line-grow {
  from { stroke-dashoffset: 1000; }
  to { stroke-dashoffset: 0; }
}

@keyframes bar-grow {
  from { transform: scaleY(0); }
  to { transform: scaleY(1); }
}

@keyframes ring-rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes ring-rotate-reverse {
  from { transform: rotate(0deg); }
  to { transform: rotate(-360deg); }
}

@keyframes grid-move {
  0% { background-position: 0 0; }
  100% { background-position: 80px 80px; }
}

/* --- 动画类 --- */
.animate-float { animation: float 4s ease-in-out infinite; }
.animate-float-slow { animation: float 6s ease-in-out infinite; }
.animate-float-fast { animation: float 3s ease-in-out infinite; }
.animate-glow { animation: glow-pulse 2s ease-in-out infinite; }
.animate-spin-slow { animation: spin-slow 20s linear infinite; }
.animate-pulse { animation: energy-pulse 2s ease-in-out infinite; }
.animate-blink { animation: blink 1s ease-in-out infinite; }
.animate-fade-in { animation: fade-in 0.8s ease-out forwards; }
.animate-slide-up { animation: slide-up 0.8s ease-out forwards; }
.animate-slide-down { animation: slide-down 0.8s ease-out forwards; }
.animate-scale-in { animation: scale-in 0.6s ease-out forwards; }
.animate-grid-move { animation: grid-move 8s linear infinite; }
.animate-flip { animation: flip-in 1s ease-out forwards; }

.delay-1 { animation-delay: 0.1s; opacity: 0; }
.delay-2 { animation-delay: 0.2s; opacity: 0; }
.delay-3 { animation-delay: 0.3s; opacity: 0; }
.delay-4 { animation-delay: 0.4s; opacity: 0; }
.delay-5 { animation-delay: 0.5s; opacity: 0; }
.delay-6 { animation-delay: 0.6s; opacity: 0; }
.delay-7 { animation-delay: 0.7s; opacity: 0; }
.delay-8 { animation-delay: 0.8s; opacity: 0; }

/* --- 滚动触发 --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.reveal-stagger.is-visible > *:nth-child(1) { transition-delay: 0.05s; opacity: 1; transform: translateY(0); }
.reveal-stagger.is-visible > *:nth-child(2) { transition-delay: 0.15s; opacity: 1; transform: translateY(0); }
.reveal-stagger.is-visible > *:nth-child(3) { transition-delay: 0.25s; opacity: 1; transform: translateY(0); }
.reveal-stagger.is-visible > *:nth-child(4) { transition-delay: 0.35s; opacity: 1; transform: translateY(0); }
.reveal-stagger.is-visible > *:nth-child(5) { transition-delay: 0.45s; opacity: 1; transform: translateY(0); }
.reveal-stagger.is-visible > *:nth-child(6) { transition-delay: 0.55s; opacity: 1; transform: translateY(0); }
.reveal-stagger.is-visible > *:nth-child(7) { transition-delay: 0.65s; opacity: 1; transform: translateY(0); }
.reveal-stagger.is-visible > *:nth-child(8) { transition-delay: 0.75s; opacity: 1; transform: translateY(0); }

/* 数字计数动画 */
.count-up {
  display: inline-block;
  font-variant-numeric: tabular-nums;
}

/* --- 媒体查询: 减少动效 --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* --- 3D 倾斜卡片 --- */
.tilt-card {
  transform-style: preserve-3d;
  transition: transform 0.4s ease;
}
.tilt-card:hover {
  transform: perspective(1000px) rotateY(5deg) rotateX(2deg) scale(1.02);
}

/* --- 视差滚动 --- */
.parallax-slow { will-change: transform; }
.parallax-fast { will-change: transform; }

/* --- 鼠标跟随光晕 --- */
.cursor-glow {
  position: fixed;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.1) 0%, transparent 70%);
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.2s ease;
  display: none;
}
@media (hover: hover) {
  .cursor-glow { display: block; }
}