/* ====================================
   全局样式文件 - 时尚女装展示网站
   ==================================== */

/* 重置样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 根变量定义 */
:root {
  --color-cream: #faf8f6;
  --color-cocoa: #3e2723;
  --color-terracotta: #d4a59a;
  --color-mist: #e8e3df;
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --transition-base: 0.3s ease;
  --shadow-soft: 0 4px 20px rgba(62, 39, 35, 0.08);
}

/* 全局样式 */
html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-cream);
  color: var(--color-cocoa);
  line-height: 1.7;
  overflow-x: hidden;
}

/* 导航栏 */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(250, 248, 246, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: var(--spacing-sm) 0;
  box-shadow: var(--shadow-soft);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-cocoa);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
}

.nav-links a {
  color: var(--color-cocoa);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  transition: color var(--transition-base);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-terracotta);
  transition: width var(--transition-base);
}

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

/* 主容器 */
main {
  margin-top: 80px;
  min-height: calc(100vh - 160px);
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* 轮播图 */
.hero-slider {
  position: relative;
  width: 100%;
  height: 90vh;
  overflow: hidden;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease;
}

.slide.active {
  opacity: 1;
}

.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.9);
}

.slide-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--color-cream);
  z-index: 10;
}

.slide-overlay h1 {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 300;
  letter-spacing: 0.15em;
  margin-bottom: var(--spacing-sm);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.slide-overlay p {
  font-size: clamp(1rem, 2vw, 1.5rem);
  letter-spacing: 0.08em;
  font-weight: 300;
}

/* 分区标题 */
.section-title {
  text-align: center;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 400;
  letter-spacing: 0.1em;
  margin: var(--spacing-xl) 0 var(--spacing-lg);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 1px;
  background: var(--color-terracotta);
  margin: var(--spacing-sm) auto 0;
}

/* 图片网格 */
.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.image-card {
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  aspect-ratio: 3/4;
  cursor: pointer;
}

.image-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

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

.image-card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: var(--spacing-md);
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  color: white;
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

.image-card-overlay h3 {
  font-size: 1.2rem;
  font-weight: 400;
  margin-bottom: var(--spacing-xs);
}

.image-card-overlay p {
  font-size: 0.9rem;
  line-height: 1.6;
}

/* 文字模块 */
.text-module {
  max-width: 900px;
  margin: var(--spacing-xl) auto;
  padding: var(--spacing-lg) var(--spacing-md);
  background: white;
  border-radius: 8px;
  box-shadow: var(--shadow-soft);
}

.text-module h2 {
  font-size: 1.8rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  margin-bottom: var(--spacing-md);
  text-align: center;
}

.text-module p {
  font-size: 1.05rem;
  line-height: 1.9;
  color: #5d4e46;
  text-align: justify;
}

/* 风格分类 */
.style-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.style-item {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.style-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  height: 400px;
}

.style-images img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.style-images img:hover {
  transform: scale(1.05);
}

.style-content {
  padding: var(--spacing-md);
}

.style-content h3 {
  font-size: 1.4rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  margin-bottom: var(--spacing-sm);
  color: var(--color-cocoa);
}

.style-content p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: #5d4e46;
}

/* 细节模块 */
.detail-section {
  margin-bottom: var(--spacing-xl);
}

.detail-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.detail-item:nth-child(even) {
  direction: rtl;
}

.detail-item:nth-child(even) > * {
  direction: ltr;
}

.detail-image {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 8px;
  overflow: hidden;
}

.detail-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

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

.detail-text h3 {
  font-size: 1.6rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  margin-bottom: var(--spacing-sm);
  color: var(--color-cocoa);
}

.detail-text p {
  font-size: 1rem;
  line-height: 1.9;
  color: #5d4e46;
}

/* 页脚 */
footer {
  text-align: center;
  padding: var(--spacing-lg) 0;
  background: var(--color-mist);
  color: var(--color-cocoa);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .nav-container {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .nav-links {
    gap: var(--spacing-sm);
  }

  .hero-slider {
    height: 60vh;
  }

  .image-grid {
    grid-template-columns: 1fr;
  }

  .style-categories {
    grid-template-columns: 1fr;
  }

  .detail-item {
    grid-template-columns: 1fr;
  }

  .detail-item:nth-child(even) {
    direction: ltr;
  }

  .text-module {
    padding: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .nav-logo {
    font-size: 1.2rem;
  }

  .nav-links a {
    font-size: 0.85rem;
  }

  .section-title {
    margin: var(--spacing-md) 0;
  }

  .style-images {
    height: 300px;
  }
}