/* 页面全局样式 */
body {
    margin: 0;
    font-family: 'Helvetica', 'Arial', sans-serif;
    background: linear-gradient(135deg, #000046, #1cb5e0);
    color: #ffffff;
    line-height: 1.7;
    overflow-x: hidden;
}
h1, h2, h3, h4, h5, h6 {
    font-family: 'Roboto', sans-serif;
    font-weight: bold;
    color: #ff6f61;
    margin-top: 1.5rem;
    margin-bottom: 0.8rem;
}
p, li {
    font-size: 1rem;
    color: #e0f7fa;
}
a {
    color: #64ffda;
    text-decoration: none;
}
a:hover {
    color: #ff9800;
    text-decoration: underline;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}
/* 标题区域 */
.header {
    background: linear-gradient(45deg, #1e3c72, #2a5298);
    padding: 30px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.header h1 {
    font-size: 2.5rem;
    color: #ffffff;
    text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.5);
}
.header::before {
    content: '';
    position: absolute;
    top: -20%;
    left: -20%;
    width: 150%;
    height: 150%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1), transparent);
    transform: rotate(45deg);
    z-index: -1;
}
/* 不对称布局 */
.asymmetric-layout {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-top: 40px;
}
.asymmetric-layout .left {
    flex: 1;
    padding: 20px;
    background: linear-gradient(135deg, #2c3e50, #4ca1af);
    border-radius: 10px;
    margin-right: 20px;
}
.asymmetric-layout .right {
    flex: 1;
    padding: 20px;
    background: linear-gradient(135deg, #2b5876, #4e54c8);
    border-radius: 10px;
    margin-left: 20px;
}
@media (max-width: 768px) {
    .asymmetric-layout {
        flex-direction: column;
    }
    .asymmetric-layout .left, .asymmetric-layout .right {
        margin: 0;
        margin-bottom: 20px;
    }
}
/* 动画效果 */
.fade-in {
    opacity: 0;
    animation: fadeIn 1s forwards;
    animation-delay: 0.3s;
}
@keyframes fadeIn {
    to {
        opacity: 1;
    }
}
.button {
    display: inline-block;
    padding: 10px 20px;
    background: #ff6f61;
    color: #fff;
    border-radius: 5px;
    transition: transform 0.3s ease;
}
.button:hover {
    transform: scale(1.1);
}
/* 斜线分隔 */
.divider {
    border-bottom: 2px solid #ffffff;
    transform: skewX(-10deg);
    margin: 20px 0;
}
/* 图片与装饰 */
.image-decor {
    width: 100%;
    max-width: 320px;
    margin: 20px auto;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}
/* 表格样式 */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
}
th, td {
    padding: 10px;
    text-align: left;
    border: 1px solid rgba(255, 255, 255, 0.2);
}
th {
    background: rgba(255, 255, 255, 0.1);
    color: #ff9800;
}
td {
    color: #ffffff;
}
/* 响应式优化 */
@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }
    p, li {
        font-size: 0.9rem;
    }
    .container {
        padding: 10px;
    }
}