body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    color: #ffffff;
    background: linear-gradient(135deg, #1e3c72, #2a5298, #00ffcb);
    background-size: 400% 400%;
    animation: gradient-animation 20s ease infinite;
    overflow-x: hidden;
}

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

header {
    text-align: center;
    padding: 100px 20px;
    position: relative;
    overflow: hidden;
}

header h1 {
    font-size: 4rem;
    font-weight: bold;
    background: -webkit-linear-gradient(#ff7e5f, #feb47b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
    z-index: 2;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 200%;
    height: 100%;
    background: url('https://images.gptkong.com/demo/sample1.png'), url('https://images.gptkong.com/demo/sample2.png');
    background-size: 30%, 25%;
    background-repeat: no-repeat;
    background-position: 10% 50%, 90% 50%;
    opacity: 0.3;
    z-index: 1;
    animation: float-effect 15s infinite alternate;
}

@keyframes float-effect {
    from {transform: translateX(-10px);}
    to {transform: translateX(10px);}
}

.cta-button {
    display: inline-block;
    margin-top: 20px;
    padding: 15px 30px;
    font-size: 1.2rem;
    background: linear-gradient(90deg, #6a11cb, #2575fc);
    border-radius: 50px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
    z-index: 2;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.5s ease;
    z-index: -1;
}

.cta-button:hover::before {
    width: 200px;
    height: 200px;
}

.cta-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
}

.container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    padding: 40px 20px;
    max-width: 1400px;
    margin: auto;
}

.module {
    width: calc(33.33% - 20px);
    margin-bottom: 40px;
    background: linear-gradient(135deg, #6a11cb, #2575fc);
    color: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
    position: relative;
}

.module img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 10px;
}

.module:hover {
    transform: scale(1.05);
}

.module h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.module p {
    font-size: 1rem;
    line-height: 1.6;
}

.line {
    stroke: url(#gradient-line);
    stroke-width: 2;
    animation: line-glow 2s infinite alternate;
}

@keyframes line-glow {
    from {opacity: 0.5;}
    to {opacity: 1;}
}

.parallax {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    height: 500px;
    background-image: linear-gradient(to bottom, #0f2027, #203a43, #2c5364);
    position: relative;
}

.parallax::after {
    content: '这是一个网页样式设计参考';
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.5rem;
    color: white;
    background: rgba(0, 0, 0, 0.5);
    padding: 10px 20px;
    border-radius: 50px;
}

@media (max-width: 1024px) {
    .module {
        width: calc(50% - 20px);
    }
}

@media (max-width: 768px) {
    header h1 {
        font-size: 3rem;
    }
    .module {
        width: 100%;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 2.5rem;
    }
    .container {
        padding: 20px;
    }
    .cta-button {
        font-size: 1rem;
        padding: 10px 20px;
    }
}