/* ========================================
   动效库
   ======================================== */

/* ---------- 渐变背景动画 ---------- */
@keyframes aurora-flow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
.bg-aurora {
  background: linear-gradient(135deg, #FF6B1A, #FF7A5C, #FFB199, #FF6B1A);
  background-size: 300% 300%;
  animation: aurora-flow 8s ease infinite;
}

/* ---------- NFC 圆环扩散 ---------- */
@keyframes nfc-ripple {
  0% { transform: scale(0.6); opacity: 0.8; }
  100% { transform: scale(2.2); opacity: 0; }
}
.nfc-ripple {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 3px solid #fff;
  animation: nfc-ripple 2s ease-out infinite;
}
.nfc-ripple:nth-child(2) { animation-delay: 0.6s; }
.nfc-ripple:nth-child(3) { animation-delay: 1.2s; }

/* ---------- 数字翻转 ---------- */
@keyframes flip-in {
  from { opacity: 0; transform: perspective(800px) rotateY(-30deg); }
  to { opacity: 1; transform: perspective(800px) rotateY(0); }
}
.flip-in { animation: flip-in 0.6s ease forwards; }

/* ---------- 上滑进入 ---------- */
@keyframes slide-up {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.slide-up { animation: slide-up 0.5s ease forwards; }
.slide-up-d1 { animation-delay: 0.1s; opacity: 0; }
.slide-up-d2 { animation-delay: 0.2s; opacity: 0; }
.slide-up-d3 { animation-delay: 0.3s; opacity: 0; }
.slide-up-d4 { animation-delay: 0.4s; opacity: 0; }

/* ---------- 淡入 ---------- */
@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}
.fade-in { animation: fade-in 0.4s ease forwards; }

/* ---------- 缩放出现 ---------- */
@keyframes pop-in {
  0% { opacity: 0; transform: scale(0.6); }
  60% { opacity: 1; transform: scale(1.08); }
  100% { transform: scale(1); }
}
.pop-in { animation: pop-in 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards; }

/* ---------- 飘动 ---------- */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.float { animation: float 3s ease-in-out infinite; }

/* ---------- 闪光 ---------- */
@keyframes shine {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}
.shine-wrap {
  position: relative;
  overflow: hidden;
}
.shine-wrap::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
  animation: shine 3s linear infinite;
}

/* ---------- 旋转加载 ---------- */
@keyframes spin {
  to { transform: rotate(360deg); }
}
.spin { animation: spin 1s linear infinite; }

/* ---------- 心跳 ---------- */
@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  10%, 30% { transform: scale(1.15); }
  20% { transform: scale(1); }
}
.heartbeat { animation: heartbeat 1.6s ease infinite; }

/* ---------- 跑马灯（榜单用） ---------- */
@keyframes marquee {
  from { transform: translateY(0); }
  to { transform: translateY(-50%); }
}

/* ---------- 入场延迟 ---------- */
.delay-100 { animation-delay: 0.1s; opacity: 0; }
.delay-200 { animation-delay: 0.2s; opacity: 0; }
.delay-300 { animation-delay: 0.3s; opacity: 0; }
.delay-400 { animation-delay: 0.4s; opacity: 0; }
.delay-500 { animation-delay: 0.5s; opacity: 0; }

/* ---------- 屏幕外过渡 ---------- */
.page-enter {
  animation: slide-up 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}