/* 引入字体资源：思源黑体(Noto Sans SC) 与 Inter (作为Neue Haas Grotesk的替代) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500&family=Noto+Sans+SC:wght@300;400;500&display=swap');

/* 定义设计系统的核心变量 */
:root {
  /* 色彩体系 */
  --color-bone-white: #FAF9F6;
  --color-fog-gray: #E8E8E8;
  --color-clay-pink: #D4A593;
  
  /* 字体系统 */
  --font-primary: 'Inter', 'Noto Sans SC', sans-serif;
  
  /* 动效参数 */
  --transition-duration: 0.6s;
  --transition-easing: cubic-bezier(0.22, 1, 0.36, 1); /* 优雅的缓动曲线 */
}

/* 全局基础重置与排版设置 */
body {
  font-family: var(--font-primary);
  background-color: var(--color-bone-white);
  color: #2c2c2c;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden; /* 防止水平溢出 */
  scroll-behavior: smooth;
}

/* 极简滚动条样式 */
::-webkit-scrollbar {
  width: 4px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: #d1d1d1;
  border-radius: 2px;
}

/* 核心动效：淡入与上滑 */
.animate-fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp var(--transition-duration) var(--transition-easing) forwards;
}

/* 延迟动画类，用于列表依次显示 */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }

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

/* 导航栏特定样式：固定定位且磨砂玻璃效果 */
.nav-glass {
  background-color: rgba(250, 249, 246, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.03);
  transition: all 0.3s ease;
}

.nav-link {
  position: relative;
  color: #333;
  text-decoration: none;
  transition: opacity 0.3s ease;
}

.nav-link:hover {
  opacity: 0.6; /* hover状态微透明 */
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0%;
  height: 1px;
  background-color: var(--color-clay-pink);
  transition: width 0.3s ease;
}

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

/* 图片容器通用样式：隐式遮罩与缩放 */
.image-wrapper {
  overflow: hidden;
  position: relative;
}

.image-wrapper img {
  transition: transform 0.8s var(--transition-easing);
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-wrapper:hover img {
  transform: scale(1.03); /* 微缩放效果 */
}

/* 风格图鉴页：材质标签悬停交互 */
.material-tag-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.2);
  opacity: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.4s ease;
}

.material-text {
  color: white;
  background: rgba(0,0,0,0.6);
  padding: 8px 16px;
  backdrop-filter: blur(4px);
  transform: translateY(10px);
  transition: transform 0.4s ease;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
}

.group:hover .material-tag-overlay {
  opacity: 1;
}

.group:hover .material-text {
  transform: translateY(0);
}

/* 穿搭叙事页：杂志排版辅助 */
.vertical-text {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  letter-spacing: 0.15em;
}

/* 页面转场遮罩 */
.page-loader {
  position: fixed;
  inset: 0;
  background: var(--color-bone-white);
  z-index: 9999;
  transform: translateY(0);
  pointer-events: none;
  animation: slideAway 0.8s var(--transition-easing) 0.2s forwards;
}

@keyframes slideAway {
  to {
    transform: translateY(-100%);
  }
}

/* 视差效果 (首页专用) */
.parallax-bg {
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

/* 工具类补充 */
.bg-bone { background-color: var(--color-bone-white); }
.text-clay { color: var(--color-clay-pink); }
.font-light-cn { font-weight: 300; }