/* 基础样式 */
body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #0074D9, #6C5CE7, #2ECC71);
    background-size: 200% 200%;
    animation: gradient-animation 10s ease infinite;
    color: #F5F5F5;
    line-height: 1.6;
}

@keyframes gradient-animation {
    0% {background-position: 0% 50%;}
    50% {background-position: 100% 50%;}
    100% {background-position: 0% 50%;}
}

h1, h2, h3 {
    font-family: 'Poppins', sans-serif;
    font-weight: bold;
    color: #FFFFFF;
}

a {
    color: #2ECC71;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #6C5CE7;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: #FFFFFF;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1), transparent);
    animation: rotate-bg 15s linear infinite;
}

@keyframes rotate-bg {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    max-width: 600px;
}

.module {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 16px;
    text-align: center;
    position: relative;
}

.module img {
    max-width: 100%;
    border-radius: 8px;
}

.code-block {
    background: rgba(0, 0, 0, 0.5);
    padding: 15px;
    border-radius: 8px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
    overflow-x: auto;
    margin: 20px 0;
}

.button {
    background: linear-gradient(90deg, #0074D9, #6C5CE7);
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    color: white;
    cursor: pointer;
    transition: background 0.5s ease;
}

.button:hover {
    background: linear-gradient(90deg, #6C5CE7, #0074D9);
}

.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    transform: scale(0);
    animation: ripple-effect 0.5s ease-out;
    opacity: 0;
}

@keyframes ripple-effect {
    0% { transform: scale(0); opacity: 0.5; }
    100% { transform: scale(2); opacity: 0; }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

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

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