/* 
 * Project: Fashion Women Wear 2026
 * Theme: Modern Minimalist & Art Atmosphere
 * Color Palette: Neutral tones with Soft Mist Purple & Rose Quartz
 */

:root {
  /* 基础色调 */
  --color-bg-primary: #F7F7F5; /* 米白 */
  --color-bg-secondary: #EBEBE9; /* 浅灰 */
  --color-text-main: #2C2C2C; /* 深灰，非纯黑 */
  --color-text-muted: #888888;
  
  /* 2026 春季主题色 */
  --color-theme-purple: #DCD0E6; /* 柔雾紫 */
  --color-theme-pink: #F3CED5; /* 石英粉 */
  --color-accent-sand: #DCCBB9; /* 沙色 */

  /* 动画曲线 */
  --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
  --ease-in-out-circ: cubic-bezier(0.785, 0.135, 0.15, 0.86);
}

/* --- 全局基础 --- */
body {
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; /* 无衬线字体家族 */
  background-color: var(--color-bg-primary);
  color: var(--color-text-main);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

/* 隐藏滚动条但允许滚动 */
.no-scrollbar::-webkit-scrollbar {
  display: none;
}
.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* --- 动画关键帧 --- */

/* 页面淡入淡出垂直滑动 */
@keyframes pageFadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 导航下划线展开 */
@keyframes lineExpand {
  from { width: 0; }
  to { width: 100%; }
}

/* 柔和漂浮 */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* 织物波浪模拟 */
@keyframes fabricWave {
  0% { transform: scale(1) skew(0deg); }
  50% { transform: scale(1.02) skew(1deg); }
  100% { transform: scale(1) skew(0deg); }
}

/* --- 核心组件样式 --- */

/* 1. 柔光滤镜 (Soft Light Filter) */
.soft-filter {
  position: relative;
  overflow: hidden;
}
.soft-filter::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(0.5px) brightness(1.02);
  pointer-events: none;
  z-index: 10;
}

/* 2. 图片悬停交互 (Hover Reveal) */
.hover-reveal-container {
  position: relative;
  overflow: hidden;
  cursor: none; /* 可配合自定义光标，此处简化 */
}

.hover-reveal-img {
  transition: transform 1.2s var(--ease-out-expo), filter 0.8s ease;
  will-change: transform;
}

.hover-reveal-text {
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.6s var(--ease-out-expo);
  pointer-events: none;
  z-index: 20;
}

.hover-reveal-container:hover .hover-reveal-img {
  transform: scale(1.03);
  filter: brightness(0.9);
}

.hover-reveal-container:hover .hover-reveal-text {
  opacity: 1;
  transform: translateY(0);
}

/* 3. 导航激活状态 */
.nav-link {
  position: relative;
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  height: 1px;
  background-color: var(--color-text-main);
  animation: lineExpand 0.6s var(--ease-out-expo) forwards;
}

/* 4. 滚动视差容器 (Parallax) */
.parallax-section {
  position: relative;
  overflow: hidden;
  /* 移动端降级处理，桌面端由JS控制transform */
}

/* 5. 抽象织物效果 */
.fabric-mesh {
  opacity: 0.6;
  filter: blur(40px);
  mix-blend-mode: multiply;
  animation: fabricWave 10s ease-in-out infinite;
}

/* --- 文字排版细节 --- */
.font-light-heading {
  font-weight: 300;
  letter-spacing: -0.02em;
}

.text-justify-custom {
  text-align: justify;
  text-justify: inter-ideograph;
}

/* 诗性排版：增加行高，字间距微调 */
.poetic-text {
  line-height: 1.8;
  letter-spacing: 0.05em;
}

/* --- 移动端适配 (响应式) --- */
@media (max-width: 768px) {
  /* 移动端禁用部分hover特效 */
  .hover-reveal-container:hover .hover-reveal-img {
    transform: none;
  }
  
  /* 移动端瀑布流单列优化 */
  .mobile-waterfall-item {
    margin-bottom: 24px;
  }
  
  /* 汉堡菜单动画 */
  .menu-overlay {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background-color: rgba(247, 247, 245, 0.95);
  }
}

/* --- 加载状态 --- */
.loader-fade-out {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.8s ease;
}

/* 页面切换过渡层 */
#page-transition-layer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--color-bg-primary);
  z-index: 9999;
  transform: translateY(100%);
  transition: transform 0.8s var(--ease-in-out-circ);
}
.page-transition-active {
  transform: translateY(0) !important;
}