/**
 * 宋向元汝瓷官网 - 动效系统
 * 遵循奢侈品级动效规范：极简、舒缓、低干扰
 */

/* ═══════════════════════════════════════════════════════════
   入场动画
═══════════════════════════════════════════════════════════ */

/* 淡入上浮 */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-slow) var(--ease-luxury),
              transform var(--duration-slow) var(--ease-luxury);
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 淡入 */
.fade-in {
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-luxury);
}

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

/* 缩放入场 */
.scale-in {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity var(--duration-slow) var(--ease-luxury),
              transform var(--duration-slow) var(--ease-luxury);
}

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

/* 延迟类 */
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }
.delay-500 { transition-delay: 500ms; }
.delay-600 { transition-delay: 600ms; }

/* ═══════════════════════════════════════════════════════════
   悬停效果
═══════════════════════════════════════════════════════════ */

/* 悬停上浮 */
.hover-lift {
  transition: transform var(--duration-normal) var(--ease-luxury),
              box-shadow var(--duration-normal) var(--ease-luxury);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

/* 悬停放大 */
.hover-scale {
  transition: transform var(--duration-normal) var(--ease-luxury);
}

.hover-scale:hover {
  transform: scale(1.05);
}

/* 悬停发光 */
.hover-glow {
  transition: box-shadow var(--duration-normal) var(--ease-luxury);
}

.hover-glow:hover {
  box-shadow: var(--shadow-gold);
}

/* 悬停边框 */
.hover-border {
  transition: border-color var(--duration-normal) var(--ease-luxury);
}

.hover-border:hover {
  border-color: var(--color-tianqing);
}

/* ═══════════════════════════════════════════════════════════
   链接效果
═══════════════════════════════════════════════════════════ */

/* 下划线动画 */
.link-underline {
  position: relative;
  display: inline-block;
}

.link-underline::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: currentColor;
  transition: width var(--duration-normal) var(--ease-luxury);
}

.link-underline:hover::after {
  width: 100%;
}

/* 链接颜色变化 */
.link-color {
  transition: color var(--duration-normal) var(--ease-luxury);
}

.link-color:hover {
  color: var(--color-tianqing);
}

/* ═══════════════════════════════════════════════════════════
   图片效果
═══════════════════════════════════════════════════════════ */

/* 图片缩放 */
.img-zoom {
  overflow: hidden;
}

.img-zoom img {
  transition: transform var(--duration-slow) var(--ease-luxury);
}

.img-zoom:hover img {
  transform: scale(1.08);
}

/* 图片淡变黑白 */
.img-hover-bw {
  filter: grayscale(0);
  transition: filter var(--duration-slow) var(--ease-luxury);
}

.img-hover-bw:hover {
  filter: grayscale(100%);
}

/* ═══════════════════════════════════════════════════════════
   卡片效果
═══════════════════════════════════════════════════════════ */

/* 卡片悬停阴影 */
.card-hover {
  transition: transform var(--duration-slow) var(--ease-luxury),
              box-shadow var(--duration-slow) var(--ease-luxury);
}

.card-hover:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
}

/* 卡片边框悬停 */
.card-border-hover {
  transition: border-color var(--duration-normal) var(--ease-luxury),
              box-shadow var(--duration-normal) var(--ease-luxury);
}

.card-border-hover:hover {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-gold);
}

/* ═══════════════════════════════════════════════════════════
   加载动画
═══════════════════════════════════════════════════════════ */

/* 骨架屏 */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-fenqing) 0%,
    var(--color-sand) 50%,
    var(--color-fenqing) 100%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

.skeleton-text {
  height: 1em;
  margin-bottom: var(--space-2);
}

.skeleton-title {
  height: 1.5em;
  width: 60%;
  margin-bottom: var(--space-3);
}

.skeleton-image {
  aspect-ratio: 4/3;
}

/* 旋转加载 */
.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--color-sand);
  border-top-color: var(--color-tianqing);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* 脉冲点 */
.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--color-tianqing);
  border-radius: 50%;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(1.2);
  }
}

/* ═════════════════════════════════════════════════════════
   页面过渡（方向感知 · 丝滑版）
═════════════════════════════════════════════════════════ */

/*
 * page-nav.js 会在 body 上添加以下 class 组合：
 *
 *   进入方向 ↓（从上一页滚下来的）
 *     body.page-enter.page-enter--from-top
 *     → 页面从上方滑入
 *
 *   进入方向 ↑（从下一页滚上去的）
 *     body.page-enter.page-enter--from-bottom
 *     → 页面从下方滑入
 */

/* 初始：从上方进入（--from-top）*/
.page-enter--from-top {
  opacity: 0;
  transform: translateY(-32px);
  overflow: hidden;
}
.page-enter--from-top.page-enter-active {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 初始：从下方进入（--from-bottom）*/
.page-enter--from-bottom {
  opacity: 0;
  transform: translateY(32px);
  overflow: hidden;
}
.page-enter--from-bottom.page-enter-active {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

/* View Transitions API 增强（Chrome/Edge/Safari 17+）*/
@supports (view-transitions: auto) {
  ::view-transition-old(root),
  ::view-transition-new(root) {
    animation-duration: 0.4s;
    animation-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
  }
}


/* 滑入效果 */
.slide-in-right {
  animation: slideInRight var(--duration-slow) var(--ease-luxury);
}

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

.slide-in-left {
  animation: slideInLeft var(--duration-slow) var(--ease-luxury);
}

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

/* ═══════════════════════════════════════════════════════════
   滚动动画
═══════════════════════════════════════════════════════════ */

/* 视差滚动 */
.parallax {
  transition: transform 0.1s linear;
}

/* 滚动显示 */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity var(--duration-slower) var(--ease-luxury),
              transform var(--duration-slower) var(--ease-luxury);
}

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

/* 交错显示 */
.stagger-item {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--duration-slow) var(--ease-luxury),
              transform var(--duration-slow) var(--ease-luxury);
}

.stagger-item.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ═══════════════════════════════════════════════════════════
   装饰动画
═══════════════════════════════════════════════════════════ */

/* 浮动效果 */
.float {
  animation: float 3s ease-in-out infinite;
}

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

/* 旋转 */
.rotate {
  animation: rotate 20s linear infinite;
}

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

/* 脉冲 */
.pulse {
  animation: pulse-anim 2s ease-in-out infinite;
}

@keyframes pulse-anim {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
}

/* 光晕效果 */
.glow {
  animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
  from {
    box-shadow: 0 0 5px var(--color-gold), 0 0 10px var(--color-gold);
  }
  to {
    box-shadow: 0 0 20px var(--color-gold), 0 0 30px var(--color-gold-light);
  }
}

/* ═══════════════════════════════════════════════════════════
   交互反馈
═══════════════════════════════════════════════════════════ */

/* 点击波纹 */
.ripple {
  position: relative;
  overflow: hidden;
}

.ripple::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.ripple:active::after {
  width: 300px;
  height: 300px;
}

/* 按钮按压 */
.press-effect:active {
  transform: scale(0.97);
}

/* ═══════════════════════════════════════════════════════════
   数字动画
═══════════════════════════════════════════════════════════ */

/* 计数动画 */
.count-up {
  display: inline-block;
}

.count-up.animate {
  animation: countPulse 0.5s var(--ease-luxury);
}

@keyframes countPulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}

/* ═══════════════════════════════════════════════════════════
   特殊效果
═══════════════════════════════════════════════════════════ */

/* 汝瓷开片效果 */
.crackle-effect {
  position: relative;
}

.crackle-effect::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100' viewBox='0 0 100 100'%3E%3Cpath d='M0 50 Q25 30 50 50 T100 50' fill='none' stroke='%23C9A961' stroke-width='0.5' opacity='0.1'/%3E%3Cpath d='M0 30 Q30 50 50 30 T100 30' fill='none' stroke='%23C9A961' stroke-width='0.3' opacity='0.08'/%3E%3Cpath d='M0 70 Q20 50 40 70 T100 70' fill='none' stroke='%23C9A961' stroke-width='0.4' opacity='0.06'/%3E%3C/svg%3E");
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-luxury);
}

.crackle-effect:hover::before {
  opacity: 1;
}

/* ═══════════════════════════════════════════════════════════
   减少动画模式
═══════════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .fade-in-up,
  .fade-in,
  .scale-in,
  .reveal,
  .stagger-item {
    opacity: 1;
    transform: none;
  }
  
  .parallax {
    transform: none !important;
  }
}