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

:root {
  --color-ivory: #faf8f3;
  --color-light-gray: #e8e4df;
  --color-sand: #d4c5b0;
  --color-wine: #6b2737;
  --color-navy: #2c3e50;
  --color-text: #3a3a3a;
  --color-text-light: #666;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: var(--font-sans);
  background: var(--color-ivory);
  color: var(--color-text);
  line-height: 1.8;
  overflow-x: hidden;
}

html {
  scroll-behavior: smooth;
}

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

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

/* 导航栏 */
.nav-container {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(250, 248, 243, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 1.5rem 5%;
  border-bottom: 1px solid var(--color-light-gray);
}

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

.nav-links a {
  font-size: 0.95rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 300;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 50%;
  width: 0;
  height: 1px;
  background: var(--color-wine);
  transition: var(--transition);
  transform: translateX(-50%);
}

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

/* 首页轮播 */
.hero-section {
  height: 100vh;
  position: relative;
  overflow: hidden;
}

.carousel {
  width: 100%;
  height: 100%;
  position: relative;
}

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

.slide.active {
  opacity: 1;
}

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

.hero-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  z-index: 10;
  width: 90%;
  max-width: 800px;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 200;
  letter-spacing: 8px;
  color: white;
  text-shadow: 2px 2px 20px rgba(0, 0, 0, 0.3);
  margin-bottom: 2rem;
  animation: fadeInUp 1.2s ease-out;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: white;
  letter-spacing: 3px;
  font-weight: 300;
  line-height: 2;
  text-shadow: 1px 1px 10px rgba(0, 0, 0, 0.5);
  margin-bottom: 3rem;
  animation: fadeInUp 1.5s ease-out;
}

.hero-buttons {
  display: flex;
  gap: 2rem;
  justify-content: center;
  animation: fadeInUp 1.8s ease-out;
}

.btn-primary {
  padding: 1rem 3rem;
  background: var(--color-wine);
  color: white;
  border: none;
  cursor: pointer;
  letter-spacing: 2px;
  font-size: 0.9rem;
  transition: var(--transition);
}

.btn-primary:hover {
  background: var(--color-navy);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
  padding: 1rem 3rem;
  background: transparent;
  color: white;
  border: 1px solid white;
  cursor: pointer;
  letter-spacing: 2px;
  font-size: 0.9rem;
  transition: var(--transition);
}

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

/* 灵感图鉴网格 */
.section {
  padding: 8rem 5%;
  min-height: 100vh;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 200;
  letter-spacing: 6px;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.section-description {
  text-align: center;
  font-size: 1rem;
  color: var(--color-text-light);
  letter-spacing: 2px;
  margin-bottom: 5rem;
  font-weight: 300;
}

.category-section {
  margin-bottom: 6rem;
}

.category-title {
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 4px;
  margin-bottom: 2rem;
  color: var(--color-wine);
  text-align: center;
}

.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.grid-item {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3/4;
  cursor: pointer;
  border-radius: 2px;
}

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

.grid-item:hover img {
  transform: scale(1.08);
}

.grid-item-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  padding: 2rem;
  transform: translateY(100%);
  transition: var(--transition);
}

.grid-item:hover .grid-item-overlay {
  transform: translateY(0);
}

.grid-item-text {
  color: white;
  font-size: 1rem;
  letter-spacing: 2px;
  font-weight: 300;
}

/* 设计哲学页面 */
.philosophy-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  max-width: 1400px;
  margin: 0 auto;
  align-items: center;
}

.philosophy-images {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.philosophy-images img {
  width: 100%;
  border-radius: 2px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.philosophy-content h3 {
  font-size: 1.8rem;
  font-weight: 300;
  letter-spacing: 4px;
  margin-bottom: 1.5rem;
  color: var(--color-wine);
}

.philosophy-content p {
  font-size: 1rem;
  line-height: 2;
  color: var(--color-text-light);
  margin-bottom: 2.5rem;
  letter-spacing: 1px;
}

/* 页脚 */
.footer {
  text-align: center;
  padding: 3rem 5%;
  background: var(--color-light-gray);
  color: var(--color-text-light);
  font-size: 0.9rem;
  letter-spacing: 2px;
  margin-top: 5rem;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
  .nav-links {
    gap: 1.5rem;
  }
  
  .nav-links a {
    font-size: 0.8rem;
  }
  
  .hero-title {
    font-size: 2rem;
    letter-spacing: 4px;
  }
  
  .hero-subtitle {
    font-size: 0.9rem;
    letter-spacing: 2px;
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: 1rem;
  }
  
  .btn-primary, .btn-secondary {
    padding: 0.8rem 2rem;
    font-size: 0.85rem;
  }
  
  .section {
    padding: 5rem 5%;
  }
  
  .section-title {
    font-size: 1.8rem;
    letter-spacing: 3px;
  }
  
  .grid-container {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
  }
  
  .philosophy-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .category-title {
    font-size: 1.2rem;
    letter-spacing: 3px;
  }
}

@media (max-width: 480px) {
  .nav-container {
    padding: 1rem 3%;
  }
  
  .nav-links {
    gap: 1rem;
  }
  
  .nav-links a {
    font-size: 0.7rem;
    letter-spacing: 1px;
  }
  
  .hero-title {
    font-size: 1.5rem;
    letter-spacing: 3px;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  
  .grid-container {
    grid-template-columns: 1fr;
  }
}