/* 项目展示页面简约风格样式 */
.project-hero {
  margin-top: 70px;
  height: 400px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-align: center;
  overflow: hidden;
  width: 100%;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.6);
}

.hero-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: 0 20px;
  width: 100%;
}

.project-hero h1 {
  font-size: 3rem;
  margin-bottom: 20px;
  font-weight: 300;
}

.project-hero p {
  font-size: 1.2rem;
  color: #f1eeee;
}

.project-categories {
  background: rgb(26, 71, 127);
  padding: 40px 0;
  border-bottom: 1px solid #6588ab;
}

.category-nav {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
}

.category-btn {
  padding: 12px 24px;
  background: #f8f9fa;
  border: 1px solid #eee;
  color: #000000;
  /* 圆角 */
  border-radius: 0;
  cursor: pointer;
  transition: all 0.3s;
  font-weight: 500;
  text-decoration: none;
  display: inline-block;
}

.category-btn:hover,
.category-btn.active {
  background: #316286;
  color: white;
  border-color: #6b5d5d;
}

.project-section {
  padding: 80px 0;
}

.project-section:nth-child(even) {
  background: #fafafa;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 2.5rem;
  color: #2c759f;
  margin-bottom: 15px;
  font-weight: 300;
}

.section-header p {
  font-size: 1.1rem;
  color: #0b0b0b;
  max-width: 600px;
  margin: 0 auto;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 40px;
  margin-top: 50px;
}

.project-card {
  background: white;
  border-radius: 0;
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(59, 112, 137, 0.1);
  transition: transform 0.3s, box-shadow 0.3s;
  cursor: pointer;
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(50, 141, 164, 0.15);
}

.project-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform 0.3s;
}

.project-card:hover .project-image {
  transform: scale(1.05);
}

.project-content {
  padding: 30px;
}

.project-title {
  font-size: 1.4rem;
  color: #333;
  margin-bottom: 15px;
  font-weight: 600;
}

.project-desc {
  color: #666;
  line-height: 1.6;
  margin-bottom: 20px;
}

.project-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 20px;
  border-top: 1px solid #eee;
}

.project-type {
  background: #f8f9fa;
  color: #333;
  padding: 4px 12px;
  border-radius: 0;
  font-size: 0.85rem;
  font-weight: 500;
}

.project-year {
  color: #666;
  font-size: 0.9rem;
}

.project-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin: 60px 0;
  text-align: center;
}

.stat-item {
  padding: 30px;
  background: white;
  border-radius: 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 10px;
}

.stat-label {
  color: #666;
  font-size: 1rem;
}

@media (max-width: 768px) {
  .project-hero h1 {
    font-size: 2rem;
  }

  .category-nav {
    gap: 15px;
  }

  .category-btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }

  .project-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .project-stats {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}