/* ==========================================================================
   修行网站 - 艺术化深度美化 (空寂·淡雅·禅意)
   特色：水墨云雾、涟漪扩散、淡入淡出、米白+墨灰+青竹绿
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS变量定义 - 禅意色彩系统
   -------------------------------------------------------------------------- */
:root {
  /* 品牌主色系 - 禅意自然 */
  --zen-cream: #faf8f5;
  --zen-cream-dark: #f5f0e8;
  --zen-ink: #2c2c2c;
  --zen-ink-light: #4a4a4a;
  --zen-bamboo: #7c9a6e;
  --zen-bamboo-dark: #5a7a4e;
  --zen-jade: #8fbc8f;
  --zen-moss: #6b8e6b;
  
  /* 中性色 */
  --zen-gray-light: #d4cfc7;
  --zen-gray: #a8a095;
  --zen-stone: #8b8680;
  
  /* 装饰色 */
  --zen-gold: #c9a962;
  --zen-rose: #c9a5a5;
  
  /* 透明度 */
  --ink-mist-opacity: 0.08;
  --glass-opacity: 0.85;
  
  /* 动效时长 */
  --zen-slow: 1.5s;
  --zen-normal: 0.6s;
  --zen-fast: 0.3s;
}

/* --------------------------------------------------------------------------
   2. 水墨云雾系统
   -------------------------------------------------------------------------- */
.ink-mist-system {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.ink-mist-zen {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(
    ellipse at center,
    rgba(44, 44, 44, 0.06) 0%,
    rgba(44, 44, 44, 0.03) 40%,
    transparent 70%
  );
  filter: blur(40px);
  animation: mistFloat 20s ease-in-out infinite;
}

@keyframes mistFloat {
  0%, 100% {
    transform: translate(0, 0) scale(1) rotate(0deg);
    opacity: 0.4;
  }
  25% {
    transform: translate(30px, -20px) scale(1.1) rotate(5deg);
    opacity: 0.6;
  }
  50% {
    transform: translate(-10px, 20px) scale(0.95) rotate(-3deg);
    opacity: 0.5;
  }
  75% {
    transform: translate(20px, 10px) scale(1.05) rotate(8deg);
    opacity: 0.55;
  }
}

/* 墨迹晕染效果 */
.ink-spread {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(
    ellipse at center,
    rgba(44, 44, 44, 0.05) 0%,
    transparent 60%
  );
  animation: inkExpand 15s ease-in-out infinite;
}

@keyframes inkExpand {
  0% {
    transform: scale(0.5);
    opacity: 0;
  }
  30% {
    opacity: 0.5;
  }
  70% {
    opacity: 0.3;
  }
  100% {
    transform: scale(2);
    opacity: 0;
  }
}

/* --------------------------------------------------------------------------
   3. 涟漪扩散系统
   -------------------------------------------------------------------------- */
.ripple-container {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.ripple {
  position: absolute;
  border: 1px solid;
  border-radius: 50%;
  animation: rippleExpand 6s ease-out infinite;
}

@keyframes rippleExpand {
  0% {
    width: 0;
    height: 0;
    opacity: 0.8;
  }
  100% {
    width: 400px;
    height: 400px;
    margin-left: -200px;
    margin-top: -200px;
    opacity: 0;
  }
}

/* 五行涟漪色 */
.ripple-meditation {
  border-color: rgba(124, 154, 110, 0.5);
  animation-delay: 0s;
}

.ripple-chan {
  border-color: rgba(107, 142, 107, 0.5);
  animation-delay: 1.2s;
}

.ripple-dao {
  border-color: rgba(107, 142, 107, 0.4);
  animation-delay: 2.4s;
}

.ripple-fo {
  border-color: rgba(201, 165, 165, 0.4);
  animation-delay: 3.6s;
}

.ripple-yujia {
  border-color: rgba(124, 154, 110, 0.3);
  animation-delay: 4.8s;
}

/* 呼吸涟漪 */
.breathe-ripple {
  position: absolute;
  border: 1px solid rgba(44, 44, 44, 0.15);
  border-radius: 50%;
  animation: breatheRipple 4s ease-in-out infinite;
}

@keyframes breatheRipple {
  0%, 100% {
    transform: scale(0.8);
    opacity: 0.3;
  }
  50% {
    transform: scale(1.2);
    opacity: 0.6;
  }
}

/* --------------------------------------------------------------------------
   4. Hero区域 - 禅意渐入
   -------------------------------------------------------------------------- */
.hero-zen-art {
  min-height: 600px;
  position: relative;
  background: linear-gradient(
    180deg,
    var(--zen-cream) 0%,
    var(--zen-cream-dark) 50%,
    var(--zen-gray-light) 100%
  );
  overflow: hidden;
}

/* 淡墨山影 */
.mountain-shadow {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40%;
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(44, 44, 44, 0.03) 50%,
    rgba(44, 44, 44, 0.08) 100%
  );
  clip-path: polygon(
    0% 100%,
    0% 60%,
    15% 40%,
    30% 55%,
    45% 30%,
    60% 50%,
    75% 35%,
    90% 45%,
    100% 30%,
    100% 100%
  );
  opacity: 0.5;
}

/* 渐入文字效果 */
.text-reveal {
  opacity: 0;
  transform: translateY(30px);
  animation: textReveal 1.5s ease-out forwards;
}

@keyframes textReveal {
  0% {
    opacity: 0;
    transform: translateY(30px) scale(0.98);
    filter: blur(4px);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
  }
}

.text-reveal-delay-1 { animation-delay: 0.5s; }
.text-reveal-delay-2 { animation-delay: 1s; }
.text-reveal-delay-3 { animation-delay: 1.5s; }
.text-reveal-delay-4 { animation-delay: 2s; }

/* --------------------------------------------------------------------------
   5. 导航栏 - 极简透明
   -------------------------------------------------------------------------- */
.nav-zen {
  background: rgba(250, 248, 245, var(--glass-opacity));
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border-bottom: 1px solid rgba(44, 44, 44, 0.08);
  transition: all var(--zen-normal) ease;
}

.nav-zen:hover {
  background: rgba(250, 248, 245, 0.95);
}

/* 导航链接 - 下划线渐显 */
.nav-link-zen {
  position: relative;
  padding: 0.5rem 1rem;
  color: var(--zen-ink-light);
  font-weight: 400;
  letter-spacing: 0.05em;
  transition: all var(--zen-fast) ease;
}

.nav-link-zen::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  width: 0;
  height: 1px;
  background: var(--zen-bamboo);
  transition: all var(--zen-normal) ease;
  transform: translateX(-50%);
}

.nav-link-zen:hover,
.nav-link-zen.active {
  color: var(--zen-ink);
}

.nav-link-zen:hover::after,
.nav-link-zen.active::after {
  width: 60%;
  background: linear-gradient(90deg, transparent, var(--zen-bamboo), transparent);
}

/* Logo禅意动画 */
.logo-zen-animate {
  animation: zenFloat 6s ease-in-out infinite;
  filter: grayscale(20%);
  transition: filter var(--zen-normal) ease;
}

.logo-zen-animate:hover {
  filter: grayscale(0%);
}

@keyframes zenFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-3px) rotate(1deg); }
}

/* --------------------------------------------------------------------------
   6. 修行入口卡片 - 涟漪悬浮
   -------------------------------------------------------------------------- */
.zen-entrance-card {
  position: relative;
  background: white;
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 4px 20px rgba(44, 44, 44, 0.05);
  transition: all var(--zen-normal) cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

/* 卡片涟漪效果 */
.zen-entrance-card::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: radial-gradient(
    circle,
    rgba(124, 154, 110, 0.15) 0%,
    transparent 70%
  );
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: all var(--zen-slow) ease;
}

.zen-entrance-card:hover::before {
  width: 300%;
  height: 300%;
}

.zen-entrance-card:hover {
  transform: translateY(-8px);
  box-shadow: 
    0 20px 40px rgba(44, 44, 44, 0.1),
    0 0 60px rgba(124, 154, 110, 0.1);
}

/* 卡片边框涟漪 */
.zen-entrance-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 16px;
  border: 2px solid transparent;
  background: linear-gradient(white, white) padding-box,
              linear-gradient(135deg, var(--zen-bamboo), var(--zen-jade)) border-box;
  opacity: 0;
  transition: opacity var(--zen-normal) ease;
}

.zen-entrance-card:hover::after {
  opacity: 0.6;
}

/* 涟漪光圈动画 */
.ripple-effect {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.ripple-effect span {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--zen-bamboo);
  animation: rippleEffect 3s ease-out infinite;
}

.ripple-effect span:nth-child(2) { animation-delay: 1s; }
.ripple-effect span:nth-child(3) { animation-delay: 2s; }

@keyframes rippleEffect {
  0% {
    transform: scale(0.5);
    opacity: 0.8;
  }
  100% {
    transform: scale(2);
    opacity: 0;
  }
}

/* 卡片图标呼吸 */
.entrance-icon-zen {
  font-size: 3rem;
  line-height: 1;
  animation: iconBreathe 4s ease-in-out infinite;
}

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

/* --------------------------------------------------------------------------
   7. 标签系统 - 淡雅风格
   -------------------------------------------------------------------------- */
.tag-zen {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  font-size: 0.75rem;
  color: var(--zen-bamboo-dark);
  background: rgba(124, 154, 110, 0.1);
  border: 1px solid rgba(124, 154, 110, 0.2);
  border-radius: 20px;
  transition: all var(--zen-fast) ease;
}

.tag-zen:hover {
  background: rgba(124, 154, 110, 0.2);
  border-color: rgba(124, 154, 110, 0.3);
  transform: translateY(-1px);
}

/* --------------------------------------------------------------------------
   8. 按钮系统 - 素雅风格
   -------------------------------------------------------------------------- */
.btn-zen {
  position: relative;
  padding: 0.8rem 2rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--zen-bamboo-dark);
  background: transparent;
  border: 1px solid var(--zen-bamboo);
  border-radius: 30px;
  overflow: hidden;
  transition: all var(--zen-normal) ease;
}

.btn-zen::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--zen-bamboo), var(--zen-moss));
  opacity: 0;
  transition: opacity var(--zen-normal) ease;
}

.btn-zen:hover {
  color: white;
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(124, 154, 110, 0.3);
}

.btn-zen:hover::before {
  opacity: 1;
}

.btn-zen span {
  position: relative;
  z-index: 1;
}

/* --------------------------------------------------------------------------
   9. 文字淡入淡出
   -------------------------------------------------------------------------- */
.fade-in-zen {
  opacity: 0;
  animation: fadeInZen 1.2s ease-out forwards;
}

@keyframes fadeInZen {
  0% {
    opacity: 0;
    letter-spacing: 0.2em;
  }
  100% {
    opacity: 1;
    letter-spacing: 0.05em;
  }
}

.fade-in-zen-delay {
  animation-delay: 0.8s;
}

/* 逐字淡入 */
.char-reveal {
  opacity: 0;
  animation: charReveal 0.5s ease-out forwards;
}

@keyframes charReveal {
  0% {
    opacity: 0;
    transform: translateY(10px);
    filter: blur(2px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

/* --------------------------------------------------------------------------
   10. 滚动动画 - 自然过渡
   -------------------------------------------------------------------------- */
.scroll-reveal-zen {
  opacity: 0;
  transform: translateY(50px);
  transition: all 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.scroll-reveal-zen.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* 淡入上浮 */
.fade-up-zen {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-up-zen.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* 交错延迟 */
.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }
.delay-400 { transition-delay: 0.4s; }
.delay-500 { transition-delay: 0.5s; }

/* --------------------------------------------------------------------------
   11. 鼠标涟漪效果
   -------------------------------------------------------------------------- */
.mouse-ripple {
  position: fixed;
  width: 100px;
  height: 100px;
  border: 1px solid rgba(124, 154, 110, 0.3);
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 9999;
}

.mouse-ripple.active {
  opacity: 1;
  animation: mouseRippleExpand 1s ease-out forwards;
}

@keyframes mouseRippleExpand {
  0% {
    width: 20px;
    height: 20px;
    opacity: 0.8;
  }
  100% {
    width: 150px;
    height: 150px;
    opacity: 0;
  }
}

/* --------------------------------------------------------------------------
   12. Logo区域 - 慢速漂移
   -------------------------------------------------------------------------- */
.logo-slow-drift {
  animation: slowDrift 20s ease-in-out infinite;
  filter: grayscale(10%);
  transition: filter var(--zen-normal) ease;
}

.logo-slow-drift:hover {
  filter: grayscale(0%);
}

@keyframes slowDrift {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  25% { transform: translate(5px, -3px) rotate(0.5deg); }
  50% { transform: translate(-3px, 5px) rotate(-0.5deg); }
  75% { transform: translate(3px, 3px) rotate(0.3deg); }
}

/* --------------------------------------------------------------------------
   13. 内容区域 - 纸张质感
   -------------------------------------------------------------------------- */
.paper-texture {
  position: relative;
  background: white;
  box-shadow: 0 4px 20px rgba(44, 44, 44, 0.05);
}

.paper-texture::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  opacity: 0.5;
}

/* --------------------------------------------------------------------------
   14. 装饰线条 - 禅意笔触
   -------------------------------------------------------------------------- */
.zen-line {
  position: relative;
  height: 1px;
  background: linear-gradient(90deg, 
    transparent 0%,
    var(--zen-gray-light) 20%,
    var(--zen-bamboo) 50%,
    var(--zen-gray-light) 80%,
    transparent 100%
  );
  margin: 2rem 0;
}

.zen-line::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 8px;
  height: 8px;
  background: var(--zen-bamboo);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

/* --------------------------------------------------------------------------
   15. 五大门类特定样式
   -------------------------------------------------------------------------- */

/* 冥想 - 蓝色系 */
.entrance-meditation .ripple-effect span {
  border-color: rgba(124, 154, 110, 0.5);
}

.entrance-meditation:hover {
  box-shadow: 
    0 20px 40px rgba(44, 44, 44, 0.1),
    0 0 60px rgba(143, 188, 143, 0.2);
}

/* 禅修 - 绿色系 */
.entrance-chan .ripple-effect span {
  border-color: rgba(107, 142, 107, 0.5);
}

.entrance-chan:hover {
  box-shadow: 
    0 20px 40px rgba(44, 44, 44, 0.1),
    0 0 60px rgba(107, 142, 107, 0.2);
}

/* 道家 - 青色系 */
.entrance-dao .ripple-effect span {
  border-color: rgba(107, 142, 107, 0.4);
}

.entrance-dao:hover {
  box-shadow: 
    0 20px 40px rgba(44, 44, 44, 0.1),
    0 0 60px rgba(107, 142, 107, 0.15);
}

/* 佛学 - 暖色系 */
.entrance-fo .ripple-effect span {
  border-color: rgba(201, 165, 165, 0.5);
}

.entrance-fo:hover {
  box-shadow: 
    0 20px 40px rgba(44, 44, 44, 0.1),
    0 0 60px rgba(201, 165, 165, 0.2);
}

/* 瑜伽 - 混合系 */
.entrance-yujia .ripple-effect span {
  border-color: rgba(124, 154, 110, 0.3);
}

.entrance-yujia:hover {
  box-shadow: 
    0 20px 40px rgba(44, 44, 44, 0.1),
    0 0 60px rgba(124, 154, 110, 0.1);
}

/* --------------------------------------------------------------------------
   16. 页面切换动画
   -------------------------------------------------------------------------- */
.page-zen-transition {
  animation: zenPageIn 1s ease-out;
}

@keyframes zenPageIn {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --------------------------------------------------------------------------
   17. 特殊文字效果
   -------------------------------------------------------------------------- */
.text-zen-title {
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--zen-ink);
  text-shadow: 2px 2px 4px rgba(44, 44, 44, 0.05);
}

.text-zen-subtitle {
  font-weight: 300;
  letter-spacing: 0.15em;
  color: var(--zen-ink-light);
}

/* 渐变文字 */
.text-gradient-zen {
  background: linear-gradient(135deg, var(--zen-bamboo), var(--zen-moss), var(--zen-jade));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* --------------------------------------------------------------------------
   18. 响应式优化
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .hero-zen-art {
  min-height: 600px;
    min-height: 500px;
  }
  
  .zen-entrance-card {
    padding: 1.5rem;
  }
  
  .entrance-icon-zen {
    font-size: 2.5rem;
  }
  
  .text-zen-title {
    letter-spacing: 0.15em;
  }
}

/* --------------------------------------------------------------------------
   19. 工具类
   -------------------------------------------------------------------------- */
.shadow-zen {
  box-shadow: 0 4px 20px rgba(44, 44, 44, 0.08);
}

.shadow-zen-hover:hover {
  box-shadow: 0 12px 40px rgba(44, 44, 44, 0.12);
}

.border-zen {
  border-color: rgba(124, 154, 110, 0.2);
}

/* 呼吸动画 */
.breath-zen {
  animation: breathZen 4s ease-in-out infinite;
}

@keyframes breathZen {
  0%, 100% {
    transform: scale(1);
    opacity: 0.8;
  }
  50% {
    transform: scale(1.05);
    opacity: 1;
  }
}