/* 全局样式文件 - 时尚女装展示网站 */

/* ============================================
   CSS 变量定义
   ============================================ */
:root {
  /* 配色方案 - 低饱和度 */
  --color-bg-primary: #faf9f7;
  --color-bg-secondary: #f5f3f0;
  --color-text-primary: #2c2c2c;
  --color-text-secondary: #666666;
  --color-text-light: #999999;
  --color-accent: #8b7355;
  --color-overlay: rgba(0, 0, 0, 0.3);
  --color-overlay-hover: rgba(0, 0, 0, 0.5);
  
  /* 字体 */
  --font-heading: 'Playfair Display', serif;
  --font-body: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  
  /* 间距 */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  
  /* 动画缓动 */
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  
  /* 断点 */
  --breakpoint-mobile: 375px;
  --breakpoint-tablet: 768px;
  --breakpoint-desktop: 1440px;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: opacity 0.3s var(--ease-smooth);
}

a:hover {
  opacity: 0.7;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

/* ============================================
   导航栏样式
   ============================================ */
.nav-container {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(250, 249, 247, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(139, 115, 85, 0.1);
}

.nav-content {
  max-width: 1440px;
  margin: 0 auto;
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
}

.nav-link {
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
  transition: color 0.3s var(--ease-smooth);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-accent);
}

/* ============================================
   页面容器
   ============================================ */
.page-wrapper {
  min-height: 100vh;
  padding-top: 60px;
}

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

.container {
  max-width: 1440px;
  margin: 0 auto;
}

/* ============================================
   首页 - 英雄区
   ============================================ */
.hero-section {
  position: relative;
  height: 100vh;
  overflow: hidden;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.3));
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: var(--spacing-md);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 300;
  color: white;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 1s var(--ease-smooth);
}

.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-md);
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}

.scroll-arrow {
  width: 24px;
  height: 24px;
  border: 2px solid white;
  border-top: none;
  border-right: none;
  transform: rotate(-45deg);
}

/* ============================================
   首页 - 此刻即新模块
   ============================================ */
.moments-section {
  background-color: var(--color-bg-secondary);
}

.moments-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.moment-card {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  cursor: pointer;
}

.moment-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-smooth);
}

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

.moment-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.4s var(--ease-smooth);
}

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

.moment-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: white;
  letter-spacing: 0.1em;
}

/* ============================================
   首页 - 系列凝望模块
   ============================================ */
.collections-preview-section {
  padding: var(--spacing-xl) var(--spacing-md);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 300;
  text-align: center;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-lg);
}

.collections-scroll {
  display: flex;
  gap: var(--spacing-md);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: var(--spacing-sm) 0;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.collections-scroll::-webkit-scrollbar {
  display: none;
}

.collection-card {
  flex: 0 0 320px;
  scroll-snap-align: center;
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  cursor: pointer;
}

.collection-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-smooth);
}

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

.collection-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-overlay);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: background 0.4s var(--ease-smooth);
}

.collection-card:hover .collection-overlay {
  background: var(--color-overlay-hover);
}

.collection-name {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  color: white;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-sm);
}

.view-btn {
  padding: var(--spacing-xs) var(--spacing-md);
  border: 1px solid white;
  color: white;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  transition: all 0.3s var(--ease-smooth);
}

.view-btn:hover {
  background: white;
  color: var(--color-text-primary);
}

/* ============================================
   系列页面
   ============================================ */
.collection-hero {
  position: relative;
  height: 40vh;
  overflow: hidden;
}

.collection-hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.collection-hero-title {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3.5rem);
  color: white;
  letter-spacing: 0.1em;
  text-align: center;
}

.collection-description {
  max-width: 800px;
  margin: var(--spacing-lg) auto;
  padding: 0 var(--spacing-md);
  text-align: center;
  line-height: 2;
  color: var(--color-text-secondary);
}

.gallery-grid {
  columns: 3;
  column-gap: var(--spacing-md);
  padding: var(--spacing-md);
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: var(--spacing-md);
  overflow: hidden;
}

.gallery-image {
  width: 100%;
  transition: transform 0.4s var(--ease-smooth);
  cursor: pointer;
}

.gallery-image:hover {
  transform: scale(1.03);
}

.explore-pieces-btn {
  display: block;
  margin: var(--spacing-lg) auto;
  padding: var(--spacing-sm) var(--spacing-lg);
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-size: 1rem;
  letter-spacing: 0.1em;
  transition: all 0.3s var(--ease-smooth);
}

.explore-pieces-btn:hover {
  background: var(--color-accent);
  color: white;
}

/* ============================================
   单品页面
   ============================================ */
.filter-section {
  text-align: center;
  padding: var(--spacing-md);
  border-bottom: 1px solid rgba(139, 115, 85, 0.2);
}

.filter-tags {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.filter-tag {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all 0.3s var(--ease-smooth);
  border-bottom: 2px solid transparent;
}

.filter-tag:hover,
.filter-tag.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.pieces-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  padding: var(--spacing-lg) var(--spacing-md);
}

.piece-card {
  position: relative;
  cursor: pointer;
  overflow: hidden;
}

.piece-image-container {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--color-bg-secondary);
}

.piece-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.4s var(--ease-smooth);
}

.piece-image-alt {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.4s var(--ease-smooth);
}

.piece-card:hover .piece-image-alt {
  opacity: 1;
}

.piece-info-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-md);
  background: rgba(250, 249, 247, 0.95);
  transform: translateY(100%);
  transition: transform 0.4s var(--ease-smooth);
}

.piece-card:hover .piece-info-overlay {
  transform: translateY(0);
}

.piece-name {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin-bottom: var(--spacing-xs);
}

.piece-description {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.detail-icon {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  width: 32px;
  height: 32px;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s var(--ease-smooth);
}

.piece-card:hover .detail-icon {
  opacity: 1;
}

/* ============================================
   模态框
   ============================================ */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  animation: fadeIn 0.3s var(--ease-smooth);
}

.modal.active {
  display: flex;
}

.modal-content {
  max-width: 1200px;
  width: 100%;
  background: white;
  border-radius: 0;
  overflow: hidden;
  animation: slideUp 0.4s var(--ease-smooth);
}

.modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  width: 40px;
  height: 40px;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: transform 0.3s var(--ease-smooth);
}

.modal-close:hover {
  transform: rotate(90deg);
}

.modal-gallery {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.modal-gallery-item {
  flex: 0 0 100%;
  scroll-snap-align: center;
}

.modal-image {
  width: 100%;
  height: 60vh;
  object-fit: contain;
}

.modal-details {
  padding: var(--spacing-lg);
}

.modal-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
}

.modal-description {
  line-height: 2;
  color: var(--color-text-secondary);
}

/* ============================================
   页脚
   ============================================ */
.footer {
  text-align: center;
  padding: var(--spacing-lg) var(--spacing-md);
  border-top: 1px solid rgba(139, 115, 85, 0.1);
}

.footer-text {
  font-size: 0.9rem;
  color: var(--color-text-light);
  letter-spacing: 0.1em;
}

/* ============================================
   动画关键帧
   ============================================ */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

@keyframes slideUp {
  from {
    transform: translateY(50px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes bounce {
  0%, 100% {
    transform: translate(-50%, 0);
  }
  50% {
    transform: translate(-50%, 10px);
  }
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 768px) {
  :root {
    --spacing-md: 1.5rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
  }
  
  .nav-content {
    gap: var(--spacing-md);
  }
  
  .moments-grid {
    grid-template-columns: 1fr;
  }
  
  .collection-card {
    flex: 0 0 280px;
  }
  
  .gallery-grid {
    columns: 2;
  }
  
  .pieces-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: var(--spacing-md);
  }
}

@media (max-width: 375px) {
  .gallery-grid {
    columns: 1;
  }
  
  .pieces-grid {
    grid-template-columns: 1fr;
  }
  
  .filter-tags {
    gap: var(--spacing-sm);
  }
}

/* ============================================
   工具类
   ============================================ */
.hidden {
  display: none !important;
}

.fade-in {
  animation: fadeIn 0.6s var(--ease-smooth);
}