/* 基础样式 */
body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    color: #333;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

header {
    background-color: #4CAF50;
    color: white;
    padding: 15px;
    text-align: center;
    animation: fadeIn 1s ease-in-out;
}

nav {
    display: flex;
    justify-content: center;
    background-color: #333;
    padding: 10px;
    animation: slideIn 0.5s ease-in-out;
}

nav a {
    color: white;
    text-decoration: none;
    padding: 10px 20px;
    margin: 0 10px;
    transition: background-color 0.3s;
}

nav a:hover {
    background-color: #575757;
}

main {
    padding: 20px;
}

h1 {
    font-size: 2em;
    margin-bottom: 10px;
}

.chapter {
    background-color: #ffffff;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    opacity: 0;
    animation: fadeInUp 1s forwards;
}

.chapter h2 {
    color: #4CAF50;
    font-size: 1.5em;
    margin-top: 0;
}

.chapter p {
    font-size: 1.1em;
    line-height: 1.6;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px;
    position: fixed;
    width: 100%;
    bottom: 0;
    animation: slideInUp 0.5s ease-in-out;
}

/* 动画效果 */
@keyframes fadeIn {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(0);
    }
}

@keyframes slideInUp {
    0% {
        transform: translateY(100%);
    }
    100% {
        transform: translateY(0);
    }
}

/*-----------------------------------------*/

.marquee {
    overflow-x: hidden;
    margin-bottom: -20px;
  }
  
  .marquee-wrapper {
    display: flex;
    gap: 24px;
  }
  
  .marquee-content {
    display: flex;
    gap: 24px;
  }
  
  .content-img {
    width: 320px;
    flex-shrink: 0;
  }
  
  .content-text {
    font-weight: 700;
    font-size: 60px;
    white-space: nowrap;
  }