/* ============================================
   赛弗尼（SAFEN）企业门户 - 动画样式
   配合 IntersectionObserver 触发滚动动画
   ============================================ */

/* --- 基础动画状态 --- */
/* 所有需要滚动触发动画的元素初始状态 */
.animate-on-scroll {
  opacity: 0;
  transition: opacity 0.6s ease, transform 0.6s ease;
  will-change: opacity, transform;
}

/* 元素进入视口后的激活状态 */
.animate-on-scroll.animated {
  opacity: 1;
  transform: none !important;
}

/* --- 从下往上渐入 --- */
.fade-in-up {
  transform: translateY(40px);
}

.fade-in-up.animated {
  transform: translateY(0);
}

/* --- 从左侧滑入 --- */
.fade-in-left {
  transform: translateX(-40px);
}

.fade-in-left.animated {
  transform: translateX(0);
}

/* --- 从右侧滑入 --- */
.fade-in-right {
  transform: translateX(40px);
}

.fade-in-right.animated {
  transform: translateX(0);
}

/* --- 缩放入场 --- */
.scale-in {
  transform: scale(0.85);
}

.scale-in.animated {
  transform: scale(1);
}

/* --- 淡入 --- */
.fade-in {
  opacity: 0;
}

.fade-in.animated {
  opacity: 1;
}

/* --- 延迟类 - 用于交错动画 --- */
.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; }

/* --- 数字计数动画辅助 --- */
.counter-animate {
  display: inline-block;
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
}

/* --- 关键帧动画 --- */

/* 脉冲效果 */
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.pulse {
  animation: pulse 2s ease-in-out infinite;
}

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

.float {
  animation: float 3s ease-in-out infinite;
}

/* 闪烁强调 */
@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 5px rgba(233, 69, 96, 0.3);
  }
  50% {
    box-shadow: 0 0 20px rgba(233, 69, 96, 0.6);
  }
}

.glow {
  animation: glow 2s ease-in-out infinite;
}

/* 旋转加载 */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.spin {
  animation: spin 1s linear infinite;
}

/* 水平滚动（用于装饰条纹） */
@keyframes slide-stripe {
  from {
    background-position: 0 0;
  }
  to {
    background-position: 32px 0;
  }
}

.stripe-animate {
  animation: slide-stripe 1s linear infinite;
}

/* 文字逐字显示效果（需配合JS设置width） */
@keyframes typewriter {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

/* 光标闪烁 */
@keyframes blink-cursor {
  0%, 50% {
    border-right-color: var(--color-accent-red);
  }
  51%, 100% {
    border-right-color: transparent;
  }
}

/* 从底部弹起 */
@keyframes bounce-in {
  0% {
    opacity: 0;
    transform: translateY(60px);
  }
  60% {
    transform: translateY(-10px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.bounce-in {
  animation: bounce-in 0.8s ease forwards;
}

/* 进度条填充动画 */
@keyframes fill-bar {
  from {
    width: 0;
  }
  to {
    width: var(--fill-width, 100%);
  }
}

.fill-animate {
  animation: fill-bar 1.5s ease forwards;
}

/* --- 页面加载动画 --- */
@keyframes page-fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

body {
  animation: page-fade-in 0.4s ease;
}

/* --- 减少动画（无障碍支持） --- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .animate-on-scroll {
    opacity: 1;
    transform: none;
  }
}