/* ===================================
   全局样式 - Modern Elegance
   极简高端时尚女装展示平台
   =================================== */

/* 重置与基础样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-white: #FFFFFF;
  --color-light-gray: #F8F9FA;
  --color-dark-gray: #2C3E50;
  --color-beige: #F5F1E8;
  --color-nude-pink: #E8D3C9;
  --color-misty-blue: #E3F2FD;
  --color-chocolate: #3E2723;
  --color-copper: #B71C1C;
  
  --font-title: 'Noto Serif SC', 'Playfair Display', serif;
  --font-body: 'Noto Sans SC', 'Source Han Sans', sans-serif;
  
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-subtle: 0 2px 12px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
}

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

body {
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.8;
  color: var(--color-dark-gray);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 导航栏样式 */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(44, 62, 80, 0.08);
  padding: 1.5rem 0;
  transition: var(--transition-smooth);
}

nav ul {
  display: flex;
  justify-content: center;
  align-items: center;
  list-style: none;
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

nav a {
  font-size: 0.95rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--color-dark-gray);
  text-decoration: none;
  padding: 0.5rem 1rem;
  position: relative;
  transition: var(--transition-smooth);
}

nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 1px;
  background-color: var(--color-chocolate);
  transform: translateX(-50%);
  transition: var(--transition-smooth);
}

nav a:hover::after,
nav a.active::after {
  width: 80%;
}

nav a:hover {
  color: var(--color-chocolate);
}

nav a.active {
  color: var(--color-chocolate);
  font-weight: 500;
}

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

/* 轮播图区域 */
.hero-slider {
  position: relative;
  width: 100%;
  height: 85vh;
  overflow: hidden;
  background-color: var(--color-light-gray);
}

.slider-container {
  position: relative;
  width: 100%;
  height: 100%;
}

.slide {
  position: absolute;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.slide.active {
  opacity: 1;
}

.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.slide-caption {
  position: absolute;
  bottom: 10%;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  color: var(--color-white);
  background-color: rgba(44, 62, 80, 0.7);
  padding: 1.5rem 3rem;
  backdrop-filter: blur(8px);
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  font-family: var(--font-title);
}

/* 内容区域 */
.content-section {
  max-width: 1400px;
  margin: 0 auto;
  padding: 6rem 2rem;
}

.section-title {
  font-family: var(--font-title);
  font-size: 2.5rem;
  font-weight: 400;
  text-align: center;
  margin-bottom: 4rem;
  letter-spacing: 0.08em;
  color: var(--color-chocolate);
}

.section-subtitle {
  font-size: 1.1rem;
  text-align: center;
  color: var(--color-dark-gray);
  max-width: 800px;
  margin: -2rem auto 4rem;
  line-height: 2;
  font-weight: 300;
}

/* 网格布局 */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3rem;
  margin-bottom: 4rem;
}

.grid-item {
  background-color: var(--color-white);
  overflow: hidden;
  transition: var(--transition-smooth);
  cursor: pointer;
}

.grid-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.grid-item img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.grid-item:hover img {
  transform: scale(1.05);
}

.grid-item-content {
  padding: 1.5rem;
  background-color: var(--color-white);
}

.grid-item-title {
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: 0.8rem;
  color: var(--color-chocolate);
  letter-spacing: 0.05em;
}

.grid-item-desc {
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--color-dark-gray);
  font-weight: 300;
}

/* 哲学页面特殊样式 */
.philosophy-block {
  max-width: 900px;
  margin: 0 auto 5rem;
  padding: 3rem;
  background-color: var(--color-beige);
}

.philosophy-block h3 {
  font-family: var(--font-title);
  font-size: 1.8rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  color: var(--color-chocolate);
  letter-spacing: 0.06em;
}

.philosophy-block p {
  font-size: 1rem;
  line-height: 2.2;
  color: var(--color-dark-gray);
  margin-bottom: 1rem;
  text-align: justify;
}

.philosophy-intro {
  font-size: 1.15rem;
  line-height: 2.3;
  text-align: center;
  max-width: 850px;
  margin: 0 auto 5rem;
  padding: 2.5rem;
  background-color: var(--color-light-gray);
  font-style: italic;
  color: var(--color-dark-gray);
}

/* 系列展示 */
.collection-category {
  margin-bottom: 6rem;
}

.collection-category h3 {
  font-family: var(--font-title);
  font-size: 2rem;
  font-weight: 400;
  margin-bottom: 1rem;
  color: var(--color-chocolate);
  letter-spacing: 0.08em;
}

.collection-intro {
  font-size: 1rem;
  line-height: 2;
  color: var(--color-dark-gray);
  margin-bottom: 3rem;
  max-width: 800px;
  font-weight: 300;
}

/* 页脚 */
footer {
  background-color: var(--color-chocolate);
  color: var(--color-white);
  text-align: center;
  padding: 2rem;
  margin-top: 4rem;
}

footer p {
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  font-weight: 300;
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .slide-caption {
    font-size: 1.2rem;
    padding: 1rem 2rem;
  }
}

@media (max-width: 768px) {
  nav ul {
    gap: 1.5rem;
    padding: 0 1rem;
  }
  
  nav a {
    font-size: 0.85rem;
    padding: 0.4rem 0.8rem;
  }
  
  .hero-slider {
    height: 60vh;
  }
  
  .content-section {
    padding: 4rem 1.5rem;
  }
  
  .section-title {
    font-size: 1.8rem;
    margin-bottom: 3rem;
  }
  
  .grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .grid-item img {
    height: 350px;
  }
  
  .philosophy-block {
    padding: 2rem 1.5rem;
  }
  
  .philosophy-block h3 {
    font-size: 1.5rem;
  }
  
  .slide-caption {
    font-size: 1rem;
    padding: 0.8rem 1.5rem;
    bottom: 5%;
  }
  
  .collection-category h3 {
    font-size: 1.6rem;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  
  nav ul {
    gap: 1rem;
  }
  
  nav a {
    font-size: 0.8rem;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  
  .grid-item img {
    height: 300px;
  }
}