:root {
  --black: #1a1a1a;
  --gold: #ffd700;
  --gold-dark: #b8860b;
}

html, body {
  height: 100%;
  margin: 0;
  display: flex;
  flex-direction: column;
}

body {
  background: var(--black);
  color: #fff;
  line-height: 1.6;
  flex: 1;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, 'Helvetica Neue', sans-serif;
}

/* 导航栏 */
.nav-bar {
  background: rgba(26, 26, 26, 0.95);
  padding: 1.2rem 1rem;
  position: fixed;
  width: 100%;
  z-index: 1000;
  border-bottom: 2px solid var(--gold);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.logo {
  font-size: 1.5rem;
  letter-spacing: 2px;
  color: var(--gold);
  text-shadow: 0 0 8px rgba(255, 215, 0, 0.3);
}

.logo span {
  color: #fff;
  font-weight: 300;
}

.nav-menu {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding: 0;
  margin: 0;
}

.nav-menu a {
  color: #fff;
  text-decoration: none;
  padding-bottom: 5px;
}

.nav-menu a:hover {
  color: var(--gold);
  border-bottom: 2px solid var(--gold);
}

/* 画廊区域 */
.gallery-section {
  padding: 6rem 1rem 4rem;
  width: 100%;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  display: flex;
  align-items: center;
  margin: 2rem 0;
  flex-wrap: wrap;
  justify-content: center;
}

.gold-line {
  height: 2px;
  background: var(--gold);
  flex: 1;
  margin: 0 1rem;
  min-width: 50px;
}

.gallery-grid {
  display: grid;
  /* grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); */
  
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));

  gap: 1rem;
}

.photo-box {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1;
  border: 2px solid rgba(255, 215, 0, 0.3);
  transition: all 0.4s ease;
}

.photo-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.05) brightness(1.05);
  transition: 0.3s;
}

.photo-box:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(255, 215, 0, 0.1);
}

.photo-box:hover img {
  filter: grayscale(0%);
}

.gold-overlay {
  display: none;
}

/* 上传模块 */
.photo-upload {
  border: 2px dashed #ccc;
  display: inline-block;
  padding: 20px;
  text-align: center;
  cursor: pointer;
  width: 90%;
  max-width: 400px;
  margin: 20px auto;
}

/* 页脚 */
.gold-footer {
  background: #111;
  padding: 2rem 1rem;
  text-align: center;
  border-top: 2px solid var(--gold);
}

.gold-footer p {
  margin-bottom: 0.5rem;
  color: var(--gold);
  word-break: break-word;
}

/* 响应式适配 */
@media (max-width: 600px) {
  .nav-bar {
    flex-direction: column;
    align-items: flex-start;
  }
  .nav-menu {
    flex-direction: column;
    gap: 0.5rem;
  }
  .section-header {
    flex-direction: column;
  }
}