/* 全局样式重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg: #ffffff;
  --color-text: #2d2d2d;
  --color-text-light: #6b6b6b;
  --color-border: #e5e5e5;
  --color-overlay: rgba(0, 0, 0, 0.7);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.8;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.page-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.hero-section {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: zoomIn 20s ease-in-out infinite alternate;
}

@keyframes zoomIn {
  from { transform: scale(1); }
  to { transform: scale(1.1); }
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(0,0,0,0.2) 0%, rgba(0,0,0,0.4) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: white;
  padding: 2rem;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 200;
  letter-spacing: 0.3em;
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeInUp 1s ease-out 0.5s forwards;
}

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

.hero-button {
  display: inline-block;
  padding: 1rem 2.5rem;
  border: 1px solid rgba(255, 255, 255, 0.6);
  background: transparent;
  color: white;
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  cursor: pointer;
  transition: var(--transition-smooth);
  opacity: 0;
  animation: fadeInUp 1s ease-out 1s forwards;
}

.hero-button:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: white;
  transform: scale(1.05);
}

.preview-section {
  padding: 6rem 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 0.3em;
  text-align: center;
  margin-bottom: 4rem;
  color: var(--color-text);
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.preview-item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 3/4;
}

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

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

.preview-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 1.5rem;
  background: linear-gradient(0deg, rgba(0,0,0,0.7) 0%, transparent 100%);
  color: white;
  opacity: 0;
  transition: var(--transition-smooth);
}

.preview-item:hover .preview-overlay {
  opacity: 1;
}

.preview-label {
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  font-weight: 300;
}

.navigation {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--color-border);
  z-index: 100;
  padding: 1.5rem 2rem;
}

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

.nav-link {
  color: var(--color-text-light);
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  font-weight: 300;
  transition: var(--transition-smooth);
  position: relative;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--color-text);
}

.footer {
  text-align: center;
  padding: 2rem;
  color: var(--color-text-light);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  margin-bottom: 5rem;
}

.archive-header {
  padding: 8rem 2rem 3rem;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.archive-subtitle {
  font-size: 0.9rem;
  color: var(--color-text-light);
  font-weight: 300;
  letter-spacing: 0.1em;
  margin-top: 1rem;
}

.filter-nav {
  display: flex;
  justify-content: center;
  gap: 2rem;
  padding: 2rem;
  flex-wrap: wrap;
}

.filter-button {
  background: transparent;
  border: none;
  color: var(--color-text-light);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  cursor: pointer;
  padding: 0.5rem 1rem;
  transition: var(--transition-smooth);
  position: relative;
}

.filter-button:hover,
.filter-button.active {
  color: var(--color-text);
}

.filter-button.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--color-text);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1.5rem;
  padding: 2rem;
  max-width: 1600px;
  margin: 0 auto;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 3/4;
}

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

.gallery-item:hover img {
  transform: scale(1.05);
  filter: brightness(0.9);
}

.gallery-caption {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  text-align: center;
  opacity: 0;
  transition: var(--transition-smooth);
  padding: 1rem;
  width: 90%;
}

.gallery-item:hover .gallery-caption {
  opacity: 1;
}

.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-overlay);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.modal.active {
  display: flex;
  opacity: 1;
}

.modal-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  background: white;
  padding: 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.modal-image {
  max-width: 100%;
  max-height: 70vh;
  object-fit: contain;
}

.modal-description {
  text-align: center;
  color: var(--color-text);
  font-size: 0.95rem;
  line-height: 1.8;
  max-width: 600px;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: transparent;
  border: none;
  color: var(--color-text-light);
  font-size: 2rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.story-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.story-image-section {
  width: 100%;
  height: 100vh;
  position: relative;
  overflow: hidden;
}

.story-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1.1);
  transition: opacity 1s ease, transform 1.5s ease;
}

.story-image.visible {
  opacity: 1;
  transform: scale(1);
}

.story-text-section {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  background: var(--color-bg);
}

.story-text {
  max-width: 600px;
  text-align: center;
  font-size: 1.1rem;
  line-height: 2;
  color: var(--color-text);
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1s ease, transform 1s ease;
}

.story-text.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 1.8rem;
    letter-spacing: 0.2em;
  }
  
  .preview-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  
  .nav-list {
    gap: 1.5rem;
  }
  
  .nav-link {
    font-size: 0.8rem;
  }
  
  .filter-nav {
    gap: 1rem;
  }
  
  .modal-content {
    padding: 2rem 1rem;
  }
  
  .section-title {
    font-size: 1.2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}