/* 自定义样式文件 */

/* 基础样式设置 */
:root {
  --primary-color: #1a365d;
  --secondary-color: #2b6cb0;
  --accent-color: #4299e1;
  --text-color: #2d3748;
  --light-bg: #f7fafc;
  --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --hover-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

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

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

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

/* 导航栏样式 */
header {
  background-color: var(--primary-color);
  color: white;
  padding: 1rem 0;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.logo i {
  margin-right: 10px;
}

.nav-links {
  display: flex;
  list-style: none;
}

.nav-links li {
  margin-left: 1.5rem;
}

.nav-links a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--accent-color);
}

/* 主要内容区域 */
main {
  padding: 2rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 2rem;
  color: var(--primary-color);
}

/* 筛选区域样式 */
.filter-container {
  display: flex;
  justify-content: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.filter-btn {
  background-color: white;
  border: 1px solid var(--accent-color);
  color: var(--accent-color);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition);
  margin: 0 5px;
}

.filter-btn:hover,
.filter-btn.active {
  background-color: var(--accent-color);
  color: white;
}

/* 网站卡片网格 */
.website-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

.website-card {
  background-color: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
}

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

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 1px solid #eee;
}

.card-content {
  padding: 1.5rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--primary-color);
}

.card-description {
  color: #666;
  margin-bottom: 1rem;
  flex-grow: 1;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
}

.style-tag {
  background-color: #e2e8f0;
  color: var(--text-color);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
}

.download-btn {
  background-color: var(--secondary-color);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
}

.download-btn i {
  margin-right: 5px;
}

.download-btn:hover {
  background-color: var(--accent-color);
}

/* 预览模态框样式 */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  z-index: 1000;
  justify-content: center;
  align-items: center;
  padding: 2rem;
}

.modal-content {
  background-color: white;
  border-radius: 8px;
  width: 100%;
  max-width: 1000px;
  max-height: 90vh;
  overflow: hidden;
  position: relative;
}

.modal-image {
  width: 100%;
  height: auto;
}

.close-modal {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 1.5rem;
  color: white;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 10;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  transition: var(--transition);
}

.close-modal:hover {
  background-color: rgba(0, 0, 0, 0.8);
}

.modal-controls {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 1rem;
  z-index: 10;
}

.modal-btn {
  background-color: rgba(255, 255, 255, 0.9);
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
}

.modal-btn i {
  margin-right: 5px;
}

.modal-btn:hover {
  background-color: white;
  transform: translateY(-2px);
}

/* 页脚样式 */
footer {
  background-color: var(--primary-color);
  color: white;
  text-align: center;
  padding: 2rem 0;
  margin-top: 2rem;
}

.footer-content {
  max-width: 800px;
  margin: 0 auto;
}

.social-links {
  display: flex;
  justify-content: center;
  margin-top: 1rem;
}

.social-links a {
  color: white;
  margin: 0 0.5rem;
  font-size: 1.2rem;
  transition: var(--transition);
}

.social-links a:hover {
  color: var(--accent-color);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .website-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }

  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
  }

  .filter-container {
    flex-direction: column;
    align-items: center;
  }

  .filter-btn {
    width: 80%;
    margin-bottom: 0.5rem;
  }
}

/* 动画效果 */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.website-card {
  animation: fadeIn 0.5s ease forwards;
}

/* 延迟动画效果 */
.website-card:nth-child(1) { animation-delay: 0.1s; }
.website-card:nth-child(2) { animation-delay: 0.2s; }
.website-card:nth-child(3) { animation-delay: 0.3s; }
.website-card:nth-child(4) { animation-delay: 0.4s; }
.website-card:nth-child(5) { animation-delay: 0.5s; }
.website-card:nth-child(6) { animation-delay: 0.6s; }

/* 模态框动画 */
@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal {
  animation: modalFadeIn 0.3s ease forwards;
}

/* 滚动条样式 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: var(--accent-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--secondary-color);
}