/* GBIF风格样式表 */
:root {
  --gbif-green: #9acc3d;
  --gbif-dark-green: #7ab800;
  --gbif-light-gray: #f5f5f5;
  --gbif-medium-gray: #e0e0e0;
  --gbif-dark-gray: #757575;
  --gbif-text: #333333;
  --gbif-white: #ffffff;
  --gbif-shadow: 0 2px 4px rgba(0,0,0,0.1);
  --gbif-shadow-hover: 0 4px 8px rgba(0,0,0,0.15);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--gbif-text);
  background-color: var(--gbif-light-gray);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 头部样式 */
.header {
  background-color: var(--gbif-white);
  box-shadow: var(--gbif-shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header h1 {
  color: var(--gbif-green);
  padding: 20px 0;
  font-size: 2rem;
}

.navigation {
  display: flex;
  border-top: 1px solid var(--gbif-medium-gray);
  border-bottom: 1px solid var(--gbif-medium-gray);
  padding: 0;
}

.navigation button {
  background: none;
  border: none;
  padding: 15px 20px;
  cursor: pointer;
  font-weight: 500;
  color: var(--gbif-dark-gray);
  transition: all 0.3s ease;
  position: relative;
}

.navigation button:hover {
  background-color: var(--gbif-light-gray);
  color: var(--gbif-text);
}

.navigation button.active {
  color: var(--gbif-green);
}

.navigation button.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background-color: var(--gbif-green);
}

.navigation .navigation-link {
  background: none;
  border: none;
  padding: 15px 20px;
  cursor: pointer;
  font-weight: 500;
  color: var(--gbif-dark-gray);
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
}

.navigation .navigation-link:hover {
  background-color: var(--gbif-light-gray);
  color: var(--gbif-text);
}

/* 主体内容 */
.main-content {
  padding: 30px 0;
}

.content-wrapper {
  display: flex;
  gap: 20px;
}

.main-panel {
  flex: 1;
  transition: all 0.3s ease;
}

.main-panel.with-sidebar {
  flex: 0 0 calc(100% - 320px);
}

.sidebar-panel {
  flex: 0 0 300px;
  background-color: var(--gbif-white);
  border-radius: 8px;
  box-shadow: var(--gbif-shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}

.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid var(--gbif-medium-gray);
  background-color: var(--gbif-light-gray);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sidebar-header h2 {
  color: var(--gbif-text);
  font-size: 1.3rem;
  margin: 0;
}

.close-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--gbif-dark-gray);
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background-color 0.3s ease;
}

.close-btn:hover {
  background-color: var(--gbif-medium-gray);
}

.sidebar-content {
  padding: 20px;
  overflow-y: auto;
  flex: 1;
}

.detail-item {
  margin-bottom: 15px;
}

.detail-item label {
  display: block;
  font-weight: bold;
  color: var(--gbif-dark-gray);
  margin-bottom: 5px;
}

.detail-item span,
.detail-item p {
  display: block;
  word-break: break-word;
}

.detail-item a {
  color: var(--gbif-green);
  text-decoration: none;
}

.detail-item a:hover {
  text-decoration: underline;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 15px;
}

.section-header h2 {
  color: var(--gbif-text);
  font-size: 1.5rem;
}

.search-box {
  flex-grow: 1;
  max-width: 300px;
}

.search-input {
  width: 100%;
  padding: 10px 15px;
  border: 1px solid var(--gbif-medium-gray);
  border-radius: 4px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.search-input:focus {
  outline: none;
  border-color: var(--gbif-green);
  box-shadow: 0 0 0 2px rgba(154, 184, 0, 0.2);
}

/* 加载状态 */
.loading {
  text-align: center;
  padding: 20px;
  color: var(--gbif-dark-gray);
  font-style: italic;
}

/* 卡片网格布局 */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 20px;
}

/* 卡片样式 */
.card {
  background-color: var(--gbif-white);
  border-radius: 8px;
  box-shadow: var(--gbif-shadow);
  overflow: hidden;
  transition: all 0.3s ease;
  cursor: pointer;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--gbif-shadow-hover);
}

.card.selected {
  border: 2px solid var(--gbif-green);
  box-shadow: 0 0 0 2px var(--gbif-green);
}

.card-header {
  padding: 20px;
  border-bottom: 1px solid var(--gbif-medium-gray);
  background-color: var(--gbif-light-gray);
}

.id-badge {
  display: inline-block;
  background-color: var(--gbif-green);
  color: white;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: bold;
  margin-bottom: 10px;
}

.card-title {
  font-size: 1.2rem;
  color: var(--gbif-text);
  margin: 0 0 10px 0;
}

.oa-icon {
  height: 1em;
  width: 1em;
  vertical-align: middle;
  margin-right: 8px;
}

.card-body {
  padding: 20px;
}

.card-body p {
  margin-bottom: 10px;
  font-size: 0.95rem;
}

.card-body p:last-child {
  margin-bottom: 0;
}

.card-body strong {
  color: var(--gbif-dark-gray);
}

/* 关于页面 */
.about-page {
  background-color: var(--gbif-white);
  border-radius: 8px;
  box-shadow: var(--gbif-shadow);
  padding: 30px;
}

.business-card {
  background: linear-gradient(135deg, #f5f5f5 0%, #e0e0e0 100%);
  border-radius: 8px;
  padding: 25px;
  margin-bottom: 30px;
  text-align: left;
  box-shadow: var(--gbif-shadow);
  border-left: 4px solid var(--gbif-green);
}

.business-card h1 {
  color: var(--gbif-dark-green);
  margin: 0 0 10px 0;
  font-size: 2rem;
}

.business-card .affiliation {
  color: var(--gbif-text);
  font-size: 1.1rem;
  margin: 0 0 15px 0;
}

.business-card .links a {
  color: var(--gbif-green);
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
}

.business-card .links a:hover {
  text-decoration: underline;
}

.tags {
  margin-top: 15px;
}

.tag {
  display: inline-block;
  background-color: var(--gbif-green);
  color: white;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  margin: 0 5px 5px 0;
}

.about-page h2 {
  color: var(--gbif-green);
  margin-bottom: 25px;
  font-size: 1.8rem;
  text-align: center;
}

.about-section {
  margin-bottom: 30px;
}

.about-section:last-child {
  margin-bottom: 0;
}

.about-section h3 {
  color: var(--gbif-text);
  margin: 0 0 15px 0;
  font-size: 1.4rem;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--gbif-medium-gray);
}

.about-section h4 {
  color: var(--gbif-dark-green);
  margin: 0 0 10px 0;
  font-size: 1.1rem;
}

.about-section p {
  margin-bottom: 15px;
  text-align: justify;
  line-height: 1.7;
}

.about-section ul {
  margin: 15px 0 20px 0;
  padding-left: 20px;
}

.about-section li {
  margin-bottom: 10px;
  line-height: 1.7;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 15px;
}

.feature-card {
  background-color: var(--gbif-light-gray);
  border-radius: 6px;
  padding: 20px;
  box-shadow: var(--gbif-shadow);
  transition: transform 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-3px);
}

.feature-card h4 {
  color: var(--gbif-green);
  margin-top: 0;
}

/* 页脚 */
.footer {
  background-color: var(--gbif-white);
  padding: 20px 0;
  border-top: 1px solid var(--gbif-medium-gray);
  text-align: center;
  color: var(--gbif-dark-gray);
  font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .header h1 {
    font-size: 1.5rem;
    padding: 15px 0;
  }

  .navigation {
    flex-direction: column;
  }

  .navigation button {
    text-align: left;
    width: 100%;
    border-bottom: 1px solid var(--gbif-medium-gray);
  }

  .navigation button:last-child {
    border-bottom: none;
  }

  .section-header {
    flex-direction: column;
    align-items: stretch;
  }

  .search-box {
    max-width: 100%;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .content-wrapper {
    flex-direction: column;
  }

  .main-panel.with-sidebar {
    flex: 1;
  }

  .sidebar-panel {
    flex: 0 0 auto;
    width: 100%;
  }
  
  .about-page {
    padding: 20px 15px;
  }
  
  .feature-grid {
    grid-template-columns: 1fr;
  }
  
  .business-card h1 {
    font-size: 1.5rem;
  }
  
  .business-card .affiliation {
    font-size: 1rem;
  }
}