/* 渐变风格与全局样式 */
:root {
    --gradient-primary: linear-gradient(135deg, #4c6ef5, #8e44ad);
    --gradient-secondary: linear-gradient(90deg, #ff9a9e, #fad0c4);
    --color-accent: #ff7f50;
    --font-primary: 'Roboto', sans-serif;
    --spacing-unit: 20px;
}

body {
    margin: 0;
    font-family: var(--font-primary);
    background: var(--gradient-primary);
    color: #fff;
    line-height: 1.6;
    padding: 0 var(--spacing-unit);
}

h1, h2, h3, h4 {
    font-weight: bold;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

p {
    font-size: 1rem;
    margin-bottom: 1rem;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.3s ease-in-out;
}

a:hover {
    color: #fff;
}

/* 布局模块化设计 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-unit);
}

.card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: var(--spacing-unit);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease-in-out;
}

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

/* 动画效果 */
.button {
    display: inline-block;
    padding: 10px 20px;
    background: var(--gradient-secondary);
    border-radius: 20px;
    color: #fff;
    font-weight: bold;
    transition: transform 0.3s ease-in-out;
}

.button:hover {
    transform: scale(1.1);
}

/* 图片装饰 */
.image-decor {
    width: 100%;
    height: auto;
    border-radius: 10px;
    object-fit: cover;
}

/* 表格样式 */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 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: var(--gradient-secondary);
    color: #000;
}

/* 自适应布局 */
@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 2rem;
    }

    p {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.8rem;
    }

    p {
        font-size: 0.85rem;
    }
}