/* 
 * 全局样式文件 - 雅致衣橱
 * 极简主义设计 | 响应式布局 | 微交互
 */

:root {
  /* 设计令牌 - 颜色 */
  --bg-color: #FAFAF9;      /* 温暖米白 */
  --bg-secondary: #F5F5F4;  /* 浅灰褐 */
  --text-primary: #1C1917;  /* 深褐灰 */
  --text-secondary: #57534E;/* 中灰 */
  --text-light: #A8A29E;    /* 浅灰 */
  --accent-color: #292524;  /* 强调色 */
  --overlay-bg: rgba(28, 25, 23, 0.3); /* 图片遮罩 */

  /* 设计令牌 - 字体 */
  --font-main: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
  
  /* 设计令牌 - 间距 */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 8rem;

  /* 设计令牌 - 动画 */
  --transition-base: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-slow: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- 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-main);
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-base);
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
  height: auto;
}

/* --- 排版 --- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  text-align: center;
  margin-bottom: var(--spacing-lg);
  position: relative;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
}

p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
  font-weight: 300;
}

.text-center { text-align: center; }
.text-uppercase { text-transform: uppercase; letter-spacing: 0.1em; font-size: 0.875rem; }

/* --- 布局容器 --- */
.container {
  width: 90%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.section {
  padding: var(--spacing-xl) 0;
}

.section-sm {
  padding: var(--spacing-lg) 0;
}

/* --- 导航栏 --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: var(--spacing-md) 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition-base);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(250, 250, 249, 0.95);
  padding: var(--spacing-sm) 5%;
  box-shadow: 0 1px 0 rgba(0,0,0,0.05);
}

.logo {
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  z-index: 1001;
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
}

.nav-link {
  font-size: 0.9rem;
  color: var(--text-primary);
  position: relative;
  padding-bottom: 4px;
}

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

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

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  cursor: pointer;
  z-index: 1001;
}

/* --- 全屏轮播 (Hero) --- */
.hero {
  position: relative;
  height: 100vh;
  width: 100%;
  overflow: hidden;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-slide.active {
  opacity: 1;
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  color: white;
  max-width: 800px;
  padding: 0 var(--spacing-sm);
  transform: translateY(20px);
  opacity: 0;
  transition: var(--transition-slow);
}

.hero-slide.active .hero-content {
  transform: translateY(0);
  opacity: 1;
  transition-delay: 0.5s;
}

.hero-text {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 300;
  letter-spacing: 0.05em;
  text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

/* --- 网格展示系统 --- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-sm);
}

/* --- 图片卡片组件 --- */
.card-item {
  position: relative;
  overflow: hidden;
  group: hover;
}

.card-image-wrapper {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3/4; /* 保持时尚摄影比例 */
}

.card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.2, 1, 0.3, 1);
}

.card-item:hover .card-image {
  transform: scale(1.08);
}

.card-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.9);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: var(--transition-base);
  padding: var(--spacing-md);
  text-align: center;
}

.card-item:hover .card-overlay {
  opacity: 1;
}

.card-info {
  margin-top: var(--spacing-sm);
}

.card-title {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.card-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* --- 理念宣言区 --- */
.manifesto {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-sm);
}

.manifesto-text {
  font-size: 1.25rem;
  line-height: 1.8;
  color: var(--text-primary);
}

/* --- 品质解析页特有样式 --- */
.craft-column {
  padding: var(--spacing-md);
  background: white;
  height: 100%;
}

.comparison-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.comparison-item {
  position: relative;
}

.comparison-label {
  position: absolute;
  bottom: var(--spacing-sm);
  left: var(--spacing-sm);
  background: white;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --- 页脚 --- */
.footer {
  padding: var(--spacing-md) 0;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-light);
  margin-top: auto;
  border-top: 1px solid rgba(0,0,0,0.05);
}

/* --- 动态槽位 (Dynamic Slots) --- */
[data-slot] {
  min-height: 0;
}

/* --- 响应式适配 --- */
@media (max-width: 1024px) {
  .grid-3, .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  :root {
    --spacing-xl: 5rem;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
    width: 24px;
    height: 18px;
    position: relative;
  }

  .menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    position: absolute;
    transition: var(--transition-base);
  }

  .menu-toggle span:nth-child(1) { top: 0; }
  .menu-toggle span:nth-child(2) { top: 8px; }
  .menu-toggle span:nth-child(3) { top: 16px; }

  .menu-toggle.active span:nth-child(1) { transform: rotate(45deg); top: 8px; }
  .menu-toggle.active span:nth-child(2) { opacity: 0; }
  .menu-toggle.active span:nth-child(3) { transform: rotate(-45deg); top: 8px; }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    height: 100vh;
    background: white;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: var(--transition-slow);
    box-shadow: -5px 0 20px rgba(0,0,0,0.05);
  }

  .nav-links.active {
    right: 0;
  }

  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  h1 { font-size: 2.5rem; }
  
  .comparison-wrapper {
    grid-template-columns: 1fr;
  }
}

/* 辅助类 */
.fade-in-up {
  animation: fadeInUp 1s cubic-bezier(0.2, 1, 0.3, 1) forwards;
  opacity: 0;
  transform: translateY(30px);
}

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

.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }