/* 
 * 极简主义时尚女装展示网站全局样式
 * Design Philosophy: Minimalist, Elegant, Visual-First
 * Color Palette: White(#FFFFFF), Light Gray(#F8F9FA), Dark Gray(#333333), Dark Gold(#B59A6A)
 */

:root {
  --bg-primary: #FFFFFF;
  --bg-secondary: #F8F9FA;
  --text-main: #333333;
  --text-sub: #666666;
  --accent-gold: #B59A6A;
  --font-serif: "Playfair Display", "Songti SC", "SimSun", "Times New Roman", serif;
  --font-sans: "Source Han Sans CN", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --gap-base: 2rem;
  --transition-slow: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-fast: all 0.3s ease;
}

/* 基础重置 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* 字体排版 */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.3;
  color: var(--text-main);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); letter-spacing: 0.05em; }
h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); margin-bottom: 1.5rem; text-align: center; }
h3 { font-size: 1.5rem; margin-bottom: 1rem; letter-spacing: 0.02em; }
p { color: var(--text-sub); margin-bottom: 1.5rem; font-weight: 300; }
a { text-decoration: none; color: inherit; transition: var(--transition-fast); }

/* 布局容器 */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  width: 100%;
}

.section {
  padding: 6rem 0;
  position: relative;
}

.bg-gray { background-color: var(--bg-secondary); }

/* 导航栏 */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,0.03);
  transition: var(--transition-fast);
}

nav {
  display: flex;
  justify-content: center; /* 极简风格，居中导航 */
  align-items: center;
  height: 80px;
}

.nav-links {
  display: flex;
  gap: 4rem;
  list-style: none;
}

.nav-link {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-main);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--accent-gold);
  transition: var(--transition-fast);
}

.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-link:hover { color: var(--accent-gold); }

/* 英雄区 (Hero Section) */
.hero {
  height: 100vh;
  width: 100%;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -1;
  filter: brightness(0.85); /* 降低亮度以突出文字 */
  transition: transform 10s ease; /* 极慢的缩放动效 */
}

/* 简单的轮播图淡入淡出逻辑需要JS配合，这里设置基础样式 */
.hero-bg.active { opacity: 1; transform: scale(1.05); }
.hero-content {
  text-align: center;
  z-index: 1;
  max-width: 800px;
  padding: 0 1rem;
  opacity: 0;
  animation: fadeIn 1.5s ease-out forwards 0.5s;
}

.hero-title { margin-bottom: 1rem; text-shadow: 0 2px 10px rgba(0,0,0,0.1); color: #FFFFFF; }
.hero-subtitle { font-size: 1.1rem; letter-spacing: 0.1em; color: rgba(255,255,255,0.9); }

/* 图片网格与卡片 */
.grid-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.card {
  position: relative;
  overflow: hidden;
  background: var(--bg-primary);
}

.card-image-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 133%; /* 3:4 纵向比例 */
  overflow: hidden;
}

.card-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

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

.card-content {
  padding: 1.5rem 0.5rem;
  text-align: center;
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.card-desc {
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.6;
}

/* 设计哲学页面特有样式 */
.philosophy-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  margin: 4rem 0;
}

.philosophy-split:nth-child(even) .text-col { order: 2; }
.philosophy-split:nth-child(even) .img-col { order: 1; }

.text-block { padding: 2rem; }
.highlight-text { color: var(--accent-gold); font-style: italic; margin-bottom: 1rem; display: block; }

/* 系列精选页面特有样式 */
.collection-header {
  text-align: center;
  margin-bottom: 4rem;
  padding: 0 1rem;
}
.collection-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* 页脚 */
footer {
  padding: 3rem 0;
  text-align: center;
  border-top: 1px solid rgba(0,0,0,0.05);
  margin-top: auto;
}

.footer-text {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: #999;
  letter-spacing: 0.1em;
}

/* 动态槽位 */
.slot-container {
  display: contents; /* 不影响布局 */
}

/* 动画 */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* 响应式调整 */
@media (max-width: 1024px) {
  .nav-links { gap: 2rem; }
  .philosophy-split { gap: 2rem; }
}

@media (max-width: 768px) {
  .nav-links { gap: 1.5rem; font-size: 0.8rem; }
  .philosophy-split { grid-template-columns: 1fr; gap: 2rem; }
  .philosophy-split:nth-child(even) .text-col { order: unset; }
  .collection-grid { grid-template-columns: 1fr; }
  h1 { font-size: 2.5rem; }
  .section { padding: 4rem 0; }
  .card-image-wrapper { padding-bottom: 120%; }
}