/* 全局样式 */
body {
    margin: 0;
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #12263A, #4C2D95);
    color: #fff;
    line-height: 1.6;
    overflow-x: hidden;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    box-sizing: border-box;
}
h1, h2, h3, h4, h5, h6 {
    color: #FFD700;
    text-shadow: 0 0 5px rgba(255, 215, 0, 0.8);
}
p, li, td, th {
    font-size: 16px;
    color: #BDC3C7;
}
a {
    color: #FFD700;
    text-decoration: none;
    transition: color 0.3s ease;
}
a:hover {
    color: #fff;
    text-shadow: 0 0 5px rgba(255, 215, 0, 0.8);
}
button {
    background: linear-gradient(135deg, #FFD700, #BDC3C7);
    border: none;
    padding: 10px 20px;
    color: #12263A;
    font-weight: bold;
    border-radius: 5px;
    cursor: pointer;
    transition: transform 0.2s ease;
}
button:hover {
    transform: scale(1.05);
}
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}
th, td {
    border: 1px solid #BDC3C7;
    padding: 10px;
    text-align: left;
}
th {
    background-color: #4C2D95;
    color: #FFD700;
}
/* 响应式布局 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    h1 {
        font-size: 24px;
    }
    p, li, td, th {
        font-size: 14px;
    }
}
/* 头部区域 */
.header {
    text-align: center;
    padding: 50px 20px;
    background: rgba(18, 38, 58, 0.8);
    margin-bottom: 20px;
    border-radius: 10px;
    position: relative;
    overflow: hidden;
}
.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.2), transparent);
    animation: starfield 10s linear infinite;
    z-index: -1;
}
@keyframes starfield {
    from { transform: translateY(-100%); }
    to { transform: translateY(0); }
}
.header h1 {
    font-size: 36px;
    font-weight: bold;
    letter-spacing: 2px;
    text-shadow: 0 0 10px #FFD700;
}
.header p {
    font-size: 18px;
    margin-top: 10px;
}
.header button {
    margin-top: 20px;
}
/* 主体内容模块 */
.section {
    background: rgba(18, 38, 58, 0.7);
    padding: 30px;
    margin-bottom: 20px;
    border-radius: 10px;
    position: relative;
}
.section::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 2px;
    background: linear-gradient(90deg, #FFD700, transparent);
}
.section h2 {
    font-size: 28px;
    margin-bottom: 20px;
}
.section p {
    margin-bottom: 15px;
}
.section ul, .section ol {
    margin-left: 20px;
}
.section img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 20px auto;
    border-radius: 10px;
}
/* 尾部总结 */
.footer {
    text-align: center;
    padding: 50px 20px;
    background: linear-gradient(135deg, #4C2D95, #12263A);
    border-radius: 10px;
}
.footer h2 {
    font-size: 32px;
    margin-bottom: 20px;
}
.footer button {
    margin-top: 20px;
}