/* 全局样式 */
body {
  margin: 0;
  font-family: 'Open Sans', sans-serif;
  background: linear-gradient(135deg, #000033, #1a1a4d);
  color: #ffffff;
  line-height: 1.6;
  padding: 20px;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Roboto', sans-serif;
  color: #ffcc00;
}

p {
  color: #e0e0ff;
}

/* 卡片样式 */
.card-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  border-radius: 10px;
  padding: 20px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
}

.card:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(255, 204, 0, 0.3);
}

.card img {
  width: 100%;
  height: auto;
  border-radius: 8px;
}

.card-title {
  font-size: 1.5em;
  color: #ffdd57;
  margin-bottom: 10px;
}

.card-content {
  font-size: 1em;
  color: #c0c0ff;
}

.card-tags {
  display: flex;
  gap: 10px;
  margin-top: 15px;
}

.card-tag {
  background: rgba(255, 204, 0, 0.2);
  color: #ffdd57;
  padding: 5px 10px;
  border-radius: 20px;
  font-size: 0.9em;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .card-container {
    grid-template-columns: 1fr;
  }
}

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

.fade-in {
  animation: fadeIn 1s ease-in-out;
}

/* 按钮样式 */
.button {
  display: inline-block;
  background: linear-gradient(45deg, #ffcc00, #ff9900);
  color: #000;
  padding: 10px 20px;
  border-radius: 25px;
  text-decoration: none;
  font-weight: bold;
  transition: transform 0.2s ease;
}

.button:hover {
  transform: scale(1.1);
}

/* 代码块样式 */
pre {
  background: rgba(255, 255, 255, 0.1);
  border-left: 4px solid #ffcc00;
  padding: 15px;
  overflow-x: auto;
}

code {
  color: #ffdd57;
  font-family: 'Courier New', Courier, monospace;
}

/* 背景装饰 */
.background-decor {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
}

.decor-item {
  position: absolute;
  background: radial-gradient(circle, rgba(255, 204, 0, 0.1), transparent);
  border-radius: 50%;
  animation: float 10s infinite alternate;
}

@keyframes float {
  from { transform: translateY(0px); }
  to { transform: translateY(-20px); }
}

/* 提示样式 */
.info-tip {
  background: rgba(255, 255, 255, 0.1);
  border-left: 4px solid #ffcc00;
  padding: 10px;
  margin: 20px 0;
  font-style: italic;
}