/* ============================================
   月灵工坊 背景动画 (Background Animations)
   深空背景、光效、粒子动画
   ============================================ */

/* ============ 深空背景 ============ */
.deep-space-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: 
    radial-gradient(ellipse at 20% 10%, rgba(212, 175, 55, 0.04) 0%, transparent 40%),
    radial-gradient(ellipse at 80% 80%, rgba(212, 175, 55, 0.03) 0%, transparent 40%),
    linear-gradient(180deg, #0A0F1A 0%, #0F1623 50%, #0A0F1A 100%);
}

/* 星空粒子 */
.stars {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.star {
  position: absolute;
  width: 2px;
  height: 2px;
  background: rgba(212, 175, 55, 0.6);
  border-radius: 50%;
  animation: twinkle 3s ease-in-out infinite;
}

@keyframes twinkle {
  0%, 100% {
    opacity: 0.2;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.5);
  }
}

/* 可选：更多星星层 */
.stars.layer-2 .star {
  width: 1px;
  height: 1px;
  animation-duration: 5s;
  animation-delay: 1s;
}

.stars.layer-3 .star {
  width: 3px;
  height: 3px;
  background: rgba(232, 201, 106, 0.8);
  animation-duration: 4s;
  animation-delay: 2s;
}

/* ============ 金色光晕 ============ */
.gold-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  z-index: -1;
  opacity: 0.15;
}

.gold-glow--top {
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, var(--color-gold-primary) 0%, transparent 70%);
}

.gold-glow--bottom {
  bottom: -200px;
  right: 10%;
  width: 500px;
  height: 300px;
  background: radial-gradient(ellipse, var(--color-gold-light) 0%, transparent 70%);
}

/* ============ 金色边框发光效果 ============ */
.gold-border {
  position: relative;
}

.gold-border::before {
  content: '';
  position: absolute;
  inset: 0;
  padding: 1px;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--color-gold-light), var(--color-gold-dark), var(--color-gold-light));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* ============ Hero 区域装饰 ============ */
.hero-decoration {
  position: absolute;
  pointer-events: none;
  opacity: 0.4;
}

.hero-circle {
  width: 300px;
  height: 300px;
  border-radius: 50%;
  border: 1px solid var(--color-gold-glow);
  position: absolute;
  animation: float 8s ease-in-out infinite;
}

.hero-circle::before {
  content: '';
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  border: 1px solid var(--color-gold-glow);
  animation: rotate 20s linear infinite;
}

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

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

/* ============ 入场动画 ============ */
.fade-in {
  animation: fadeIn var(--duration-slow) var(--ease-out) forwards;
  opacity: 0;
}

.fade-in-up {
  animation: fadeInUp var(--duration-slow) var(--ease-out) forwards;
  opacity: 0;
  transform: translateY(20px);
}

.fade-in-down {
  animation: fadeInDown var(--duration-slow) var(--ease-out) forwards;
  opacity: 0;
  transform: translateY(-20px);
}

.fade-in-left {
  animation: fadeInLeft var(--duration-slow) var(--ease-out) forwards;
  opacity: 0;
  transform: translateX(-20px);
}

.fade-in-right {
  animation: fadeInRight var(--duration-slow) var(--ease-out) forwards;
  opacity: 0;
  transform: translateX(20px);
}

@keyframes fadeIn {
  to { opacity: 1; }
}

@keyframes fadeInUp {
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
  to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
  to { opacity: 1; transform: translateX(0); }
}

/* 滚动触发的入场 */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

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

/* ============ 按钮点击波纹 ============ */
.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(212, 175, 55, 0.3);
  transform: scale(0);
  animation: ripple 0.6s linear;
  pointer-events: none;
}

@keyframes ripple {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* ============ 骨架屏加载 ============ */
.skeleton {
  position: relative;
  overflow: hidden;
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
}

.skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(212, 175, 55, 0.1) 50%,
    transparent 100%
  );
  animation: skeleton-loading 1.5s infinite;
}

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

/* ============ 金色文字渐变 ============ */
.gold-text {
  background: linear-gradient(135deg, var(--color-gold-light) 0%, var(--color-gold-primary) 50%, var(--color-gold-dark) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.gold-text-glow {
  background: linear-gradient(135deg, var(--color-gold-light) 0%, var(--color-gold-primary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  text-shadow: 0 0 30px var(--color-gold-glow-strong);
}

/* ============ 卡片悬停光效 ============ */
.shimmer {
  position: relative;
  overflow: hidden;
}

.shimmer::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(212, 175, 55, 0.05),
    transparent
  );
  transition: left var(--duration-slow);
}

.shimmer:hover::before {
  left: 100%;
}

/* ============ 进度条 ============ */
.progress-bar {
  height: 4px;
  background: var(--color-bg-elevated);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-gold-dark), var(--color-gold-primary));
  border-radius: inherit;
  transition: width var(--duration-slow) var(--ease-out);
}

/* ============ 滚动条顶部进度 ============ */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gold-dark), var(--color-gold-primary), var(--color-gold-light));
  z-index: 1000;
  transition: width 0.1s linear;
}

/* ============ 滚动提示 ============ */
.scroll-hint {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  50% {
    transform: translateX(-50%) translateY(-10px);
  }
}

/* ============ 粒子效果容器 ============ */
.particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--color-gold-primary);
  border-radius: 50%;
  opacity: 0.6;
  animation: particle-float 6s ease-in-out infinite;
}

@keyframes particle-float {
  0%, 100% {
    transform: translateY(0) translateX(0);
    opacity: 0;
  }
  20% {
    opacity: 0.6;
  }
  80% {
    opacity: 0.6;
  }
  100% {
    transform: translateY(-100px) translateX(50px);
    opacity: 0;
  }
}

/* ============ 加载动画 ============ */
.loader {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-slate-300);
  border-top-color: var(--color-gold-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ============ 浮动元素 ============ */
.float {
  animation: float 6s ease-in-out infinite;
}

.float-delayed {
  animation: float 6s ease-in-out infinite;
  animation-delay: 2s;
}