/* ============================================
   animations.css V2 — 网格光点/光晕/3D/路径描边
   ============================================ */

/* ── Scroll-triggered ── */
.fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

.fade-in { opacity: 0; transition: opacity 0.8s ease; }
.fade-in.visible { opacity: 1; }

.slide-left { opacity: 0; transform: translateX(-60px); transition: opacity 0.8s ease, transform 0.8s ease; }
.slide-left.visible { opacity: 1; transform: translateX(0); }

.slide-right { opacity: 0; transform: translateX(60px); transition: opacity 0.8s ease, transform 0.8s ease; }
.slide-right.visible { opacity: 1; transform: translateX(0); }

.scale-in { opacity: 0; transform: scale(0.9); transition: opacity 0.8s ease, transform 0.8s ease; }
.scale-in.visible { opacity: 1; transform: scale(1); }

/* Stagger delays */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }
.delay-6 { transition-delay: 0.6s; }

/* ── Hero Grid Dots (类 Linear) ── */
.hero-grid {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.hero-grid-pattern {
  position: absolute;
  inset: -10%;
  background-image:
    radial-gradient(circle at center, rgba(255,107,94,0.2) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 40%, black 20%, transparent 65%);
  -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 40%, black 20%, transparent 65%);
  animation: grid-pulse 6s ease-in-out infinite;
}

@keyframes grid-pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.8; }
}

/* ── 径向光晕呼吸 ── */
@keyframes glow-breathe {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.05); }
}

.glow-breathe { animation: glow-breathe 8s ease-in-out infinite; }

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

/* ── 脉冲发光 ── */
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 8px rgba(255,107,94,0.3); }
  50% { box-shadow: 0 0 24px rgba(255,107,94,0.6); }
}

/* ── 渐变流动 ── */
@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.gradient-animate {
  background-size: 200% 200%;
  animation: gradient-shift 6s ease infinite;
}

/* ── Marquee (合作伙伴滚动) ── */
.marquee-wrapper {
  overflow: hidden;
  width: 100%;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: scroll-left 40s linear infinite;
}

.marquee-track:hover { animation-play-state: paused; }

.marquee-track-reverse { animation: scroll-right 45s linear infinite; }
.marquee-track-reverse:hover { animation-play-state: paused; }

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

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

/* ── SVG 路径描边动画 ── */
@keyframes draw-path {
  from { stroke-dashoffset: var(--path-length, 1000); }
  to { stroke-dashoffset: 0; }
}

.svg-draw {
  stroke-dasharray: var(--path-length, 1000);
  stroke-dashoffset: var(--path-length, 1000);
}

.svg-draw.visible {
  animation: draw-path 2s ease forwards;
}

/* ── 文字逐字渐入 ── */
.char-reveal span {
  display: inline-block;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.char-reveal.visible span {
  opacity: 1;
  transform: translateY(0);
}

/* ── 旋转渐变边框 ── */
@keyframes rotate-gradient {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.rotating-border {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.rotating-border::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: conic-gradient(from 0deg, var(--color-primary), var(--color-secondary), var(--color-accent), transparent, var(--color-primary));
  border-radius: inherit;
  animation: rotate-gradient 4s linear infinite;
  z-index: -1;
}

.rotating-border::after {
  content: '';
  position: absolute;
  inset: 1px;
  background: var(--bg-card-solid);
  border-radius: calc(var(--radius-lg) - 1px);
  z-index: -1;
}

/* ── 波纹 ── */
@keyframes ripple {
  0% { transform: scale(1); opacity: 0.4; }
  100% { transform: scale(2.5); opacity: 0; }
}

/* ── Hero 粒子闪烁 ── */
@keyframes twinkle {
  0%, 100% { opacity: 0.2; }
  50% { opacity: 0.8; }
}

/* ── Scroll Indicator ── */
@keyframes scroll-hint {
  0%, 100% { opacity: 0.3; transform: translateY(0); }
  50% { opacity: 0.8; transform: translateY(8px); }
}

/* ── Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
  .fade-up, .fade-in, .slide-left, .slide-right, .scale-in {
    opacity: 1; transform: none; transition: none;
  }
  .marquee-track, .marquee-track-reverse, .gradient-animate,
  .hero-grid-pattern, .glow-breathe { animation: none; }
}