/* styles.css - LFAN Main Stylesheet (Warm Orange Theme) */

/* =============== Reset & Base =============== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  .logo img {
    height: 80px;       /* 控制图片高度 */
    width: 120px;        /* 保持原始宽高比例 */
    vertical-align: middle;
    margin-right: 0.5rem;
  }

  body {
    font-family: 'Poppins', 'Verdana', sans-serif;
    line-height: 1.6;
    background-color: #f9f9f9;
    color: #333;
    padding: 0 1rem;
  }

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

  ul {
    list-style: none;
  }

  a {
    text-decoration: none;
    color: #4CAF50;
  }

  /* =============== Layout =============== */
  header {
    background-color: #4CAF50;
    padding: 1rem 0;
    color: white;
  }

  nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1100px;
    margin: auto;
  }

  .logo {
    display: flex;
    align-items: center;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
  }

  .logo img {
    height: 32px;
    width: auto;
    vertical-align: middle;
    margin-right: 0.5rem;
  }

  .nav-links {
    display: flex;
    gap: 1rem;
  }

  .nav-links a {
    color: white;
    font-weight: bold;
  }

  .nav-links a.active {
    border-bottom: 2px solid #fff;
  }

  .search-form input[type="text"] {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    border: 1px solid #ccc;
  }

  .search-form button {
    padding: 0.25rem 0.5rem;
    background-color: #4CAF50;
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 4px;
  }

  .hero {
    text-align: center;
    padding: 2rem 0;
    background-color: #E8F5E9;
  }
  .hero img {
    width: 100%;
    height: 300px;
    object-fit: cover;
  }  

  .hero h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
  }

  .hero p {
    font-size: 1.25rem;
    margin-bottom: 1rem;
  }

  .call-to-action {
    padding: 2rem 1rem;
    text-align: center;
  }

  .cta-buttons {
    margin-top: 1rem;
  }

  .button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: #4CAF50 ;
    color: white;
    border-radius: 5px;
    margin: 0.5rem;
    transition: background-color 0.3s ease;
    font-weight: bold;
  }

  .button:hover {
    background-color: #388E3C;
  }

  .locations-preview,
  .intro,
  .user-types,
  .latest-news {
    padding: 2rem 1rem;
    text-align: center;
  }

  footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 1rem;
    margin-top: 2rem;
  }

  .footer-links a {
    color: white;
    margin: 0 1rem;
    font-size: 0.9rem;
  }

  /* =============== Responsive =============== */
  @media (max-width: 768px) {
    .nav-links {
      flex-direction: column;
      align-items: flex-start;
    }

    .hero h1 {
      font-size: 2rem;
    }

    .button {
      width: 100%;
      margin: 0.5rem 0;
    }

    .user-cards {
      flex-direction: column;
    }
  }

  .intro-content {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  align-items: center;
  justify-content: center;
  margin-top: 1rem;
}

.intro-text {
  flex: 1 1 300px;
  text-align: left;
}

.intro-text ul {
  margin: 1rem 0;
  padding-left: 1.2rem;
  list-style: none;
}

.intro-text li {
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

.intro-image {
  flex: 1 1 300px;
}

.intro-image img {
  width: 100%;
  height: 375px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.user-types {
  padding: 4rem 1rem;
  background-color: #f5f5f5;
  text-align: center;
  max-width: 1100px;
  margin: auto;
}
.user-cards {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    margin-top: 2rem;
  }
  
  .user-card {
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
    overflow: hidden;
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
  }
  
  .user-card:hover {
    transform: translateY(-6px);
  }
  
  .user-image-bar img {
    width: 100%;
    height: 180px; /* 你也可以尝试 200px 或 220px，根据图片内容决定 */
    object-fit: cover;
    display: block;
  }
  
  .user-card h3 {
    margin: 1rem 0 0.5rem;
    font-size: 1.3rem;
    color: #333;
    padding: 0 1rem;
    text-align: center;
  }
  
  .user-card p {
    padding: 0 1.2rem;
    font-size: 1rem;
    color: #555;
    text-align: center;
    margin-bottom: 1rem;
  }
  
  .user-card .button {
    background-color: #4CAF50;
    color: white;
    padding: 0.6rem 1.2rem;
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
    width: fit-content;
    margin: 0 auto 1rem;
    transition: background-color 0.3s;
  }
  
  .user-card .button:hover {
    background-color: #388E3C;
  }
  .mission-cards {
    padding: 4rem 1rem;
    background-color: #f0fdf4;
    text-align: center;
  }
  
  .mission-cards h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #2e7d32;
  }
  
  .card-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    max-width: 1000px;
    margin: 0 auto;
  }
  
  .mission-card {
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
    padding: 2rem;
    transition: transform 0.2s ease-in-out;
  }
  
  .mission-card:hover {
    transform: translateY(-6px);
  }
  
  .mission-card img {
    width: 70px;
    height: auto;
    margin-bottom: 1rem;
  }
  
  .mission-card h3 {
    color: #2e7d32;
    margin-bottom: 0.5rem;
  }
  
  .mission-card p {
    color: #555;
    font-size: 1rem;
  }
  /* 下拉导航栏 */
.nav-links .dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: #ffffff;
  padding: 0.5rem 0;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  display: none;
  flex-direction: column;
  min-width: 180px;
  z-index: 1000;
}

.dropdown-menu li {
  list-style: none;
}

.dropdown-menu a {
  display: block;
  padding: 0.5rem 1rem;
  color: #333;
  text-decoration: none;
  font-weight: 500;
  white-space: nowrap;
}

.dropdown-menu a:hover {
  background-color: #f1f1f1;
  color: #2e7d32;
}

/* 显示下拉菜单 */
.nav-links .dropdown:hover .dropdown-menu {
  display: flex;
}