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

:root {
  --color-cream: #faf9f6;
  --color-oatmeal: #f5f1e8;
  --color-warm-gray: #d4cfc9;
  --color-taupe: #a8a29e;
  --color-charcoal: #4a4a4a;
  --color-brown: #8b7355;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-subtle: 0 2px 8px rgba(0, 0, 0, 0.08);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--color-cream);
  color: var(--color-charcoal);
  line-height: 1.8;
  overflow-x: hidden;
}

/* 导航栏样式 */
.nav-container {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(250, 249, 246, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid var(--color-warm-gray);
}

.nav-wrapper {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  width: 40px;
  height: 40px;
  background: var(--color-taupe);
  border-radius: 50%;
}

.nav-links {
  display: flex;
  gap: 3rem;
  list-style: none;
}

.nav-links a {
  color: var(--color-charcoal);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 0.5px;
  position: relative;
  transition: var(--transition-smooth);
}

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

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

/* 页面主容器 */
.page-container {
  margin-top: 80px;
  min-height: calc(100vh - 160px);
}

/* 轮播图容器 */
.carousel-container {
  position: relative;
  width: 100%;
  height: 85vh;
  overflow: hidden;
  background: var(--color-oatmeal);
}

.carousel-slide {
  position: absolute;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1.2s ease-in-out;
}

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

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.95);
}

.carousel-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: white;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
  max-width: 800px;
  padding: 2rem;
}

.carousel-overlay h1 {
  font-size: 2.8rem;
  font-weight: 300;
  letter-spacing: 2px;
  margin-bottom: 1rem;
  animation: fadeInUp 1s ease-out;
}

.carousel-overlay p {
  font-size: 1.1rem;
  font-weight: 300;
  letter-spacing: 1px;
  animation: fadeInUp 1.2s ease-out;
}

/* 内容区域 */
.content-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 6rem 2rem;
}

.section-title {
  font-size: 2rem;
  font-weight: 300;
  letter-spacing: 1.5px;
  margin-bottom: 3rem;
  text-align: center;
  color: var(--color-charcoal);
}

.content-block {
  margin-bottom: 4rem;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease-out forwards;
}

.content-block h3 {
  font-size: 1.4rem;
  font-weight: 400;
  letter-spacing: 1px;
  margin-bottom: 1.5rem;
  color: var(--color-brown);
}

.content-block p {
  font-size: 1.05rem;
  line-height: 2;
  color: var(--color-charcoal);
  text-align: justify;
}

/* 四宫格布局 */
.grid-container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin: 4rem 0;
}

.grid-item {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3/4;
  background: var(--color-oatmeal);
  border-radius: 4px;
}

.grid-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
  filter: brightness(0.98);
}

.grid-item:hover img {
  transform: scale(1.05);
  filter: brightness(1);
}

/* 长滚动图集 */
.scroll-gallery {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  margin: 4rem 0;
}

.gallery-row {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 3rem;
  align-items: center;
}

.gallery-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3/4;
  background: var(--color-oatmeal);
  border-radius: 4px;
}

.gallery-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

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

.gallery-text {
  padding: 2rem;
}

.gallery-text h4 {
  font-size: 1.3rem;
  font-weight: 400;
  letter-spacing: 0.8px;
  margin-bottom: 1rem;
  color: var(--color-brown);
}

.gallery-text p {
  font-size: 1rem;
  line-height: 1.9;
  color: var(--color-charcoal);
}

/* 瀑布流布局 */
.masonry-container {
  column-count: 3;
  column-gap: 2rem;
  margin: 4rem 0;
}

.masonry-item {
  break-inside: avoid;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
  background: var(--color-oatmeal);
  border-radius: 4px;
}

.masonry-item img {
  width: 100%;
  display: block;
  transition: var(--transition-smooth);
  filter: brightness(0.98);
}

.masonry-item:hover img {
  transform: scale(1.04);
  filter: brightness(1);
}

/* 页脚样式 */
.footer {
  text-align: center;
  padding: 3rem 2rem;
  background: var(--color-oatmeal);
  color: var(--color-taupe);
  font-size: 0.9rem;
  letter-spacing: 1px;
  border-top: 1px solid var(--color-warm-gray);
}

/* 动画效果 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeInUp 0.8s ease-out forwards;
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .nav-links {
    gap: 2rem;
  }
  
  .carousel-overlay h1 {
    font-size: 2.2rem;
  }
  
  .content-section {
    padding: 4rem 1.5rem;
  }
  
  .gallery-row {
    grid-template-columns: 1fr;
  }
  
  .masonry-container {
    column-count: 2;
  }
}

@media (max-width: 768px) {
  .nav-wrapper {
    padding: 1rem 1.5rem;
  }
  
  .nav-links {
    gap: 1.5rem;
  }
  
  .nav-links a {
    font-size: 0.85rem;
  }
  
  .carousel-container {
    height: 70vh;
  }
  
  .carousel-overlay h1 {
    font-size: 1.8rem;
  }
  
  .carousel-overlay p {
    font-size: 1rem;
  }
  
  .grid-container {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .masonry-container {
    column-count: 1;
  }
  
  .section-title {
    font-size: 1.6rem;
  }
}

@media (max-width: 480px) {
  .nav-links {
    gap: 1rem;
  }
  
  .carousel-overlay {
    padding: 1rem;
  }
  
  .carousel-overlay h1 {
    font-size: 1.5rem;
  }
  
  .content-section {
    padding: 3rem 1rem;
  }
  
  .content-block h3 {
    font-size: 1.2rem;
  }
  
  .content-block p {
    font-size: 0.95rem;
  }
}