/* CSS3 样式代码块 */
body {
    margin: 0;
    font-family: 'Arial', sans-serif;
    background: linear-gradient(to bottom, #121C33, #4C2A85);
    color: #FFFFFF;
    line-height: 1.6;
    overflow-x: hidden;
}
header {
    text-align: center;
    padding: 50px 20px;
    background: rgba(0, 0, 0, 0.2);
    margin: 0 10px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    color: #FF9F1C;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}
header p {
    font-size: 1.2em;
    color: #FFFFFF;
    max-width: 800px;
    margin: 0 auto;
}
section {
    padding: 40px 20px;
    margin: 20px 10px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    position: relative;
}
section:nth-child(even) {
    background: rgba(255, 255, 255, 0.05);
}
h2, h3 {
    color: #FF9F1C;
    margin-top: 0;
}
p, li, td {
    font-size: 1em;
    color: #FFFFFF;
    line-height: 1.8;
}
a {
    color: #FF9F1C;
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}
button {
    background: #FF9F1C;
    color: #121C33;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    font-size: 1em;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
button:hover {
    background: #FFC107;
    transform: scale(1.05);
}
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}
th, td {
    border: 1px solid #FFFFFF;
    padding: 10px;
    text-align: left;
}
th {
    background: rgba(255, 255, 255, 0.2);
}
img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    margin: 20px 0;
}
@media (max-width: 768px) {
    header h1 {
        font-size: 2em;
    }
    section {
        padding: 30px 15px;
    }
    button {
        padding: 8px 16px;
        font-size: 0.9em;
    }
}
@media (max-width: 480px) {
    header h1 {
        font-size: 1.5em;
    }
    header p {
        font-size: 1em;
    }
    section {
        padding: 20px 10px;
    }
    button {
        padding: 6px 12px;
        font-size: 0.8em;
    }
}