:root {
            --primary-color: #8B0000; /* 朱砂红 */
            --secondary-color: #2F4F4F; /* 青石色 */
            --light-bg: #F5F5F5;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: '微软雅黑', sans-serif;
        }

        body {
           background-color: #F8F5F0
        }

        /* 导航栏 */
        .nav {
            background: rgba(255, 255, 255, 0.95);
            padding: 1rem 5%;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }

        /* 主内容区 */
        .container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 20px;
            margin-top: 8rem;
        }

        .guide-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .guide-header h1 {
            font-size: 2.5rem;
            color: var(--secondary-color);
            margin-bottom: 1rem;
            font-family: '华文楷体', serif;
        }

        /* 指南卡片 */
        .guide-card {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            margin-bottom: 2rem;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }

        .guide-card:hover {
            transform: translateY(-5px);
        }

        .card-title {
            color: var(--primary-color);
            font-size: 1.5rem;
            margin-bottom: 1rem;
            border-left: 4px solid var(--accent-color);
            padding-left: 1rem;
        }

        .card-content {
            line-height: 1.8;
            color: #666;
        }

        .tip-box {
            background: var(--light-bg);
            padding: 1rem;
            border-radius: 8px;
            margin: 1rem 0;
            border-left: 3px solid var(--accent-color);
        }

        /* 图文混排 */
        .img-section {
            display: flex;
            gap: 2rem;
            align-items: center;
            margin: 2rem 0;
        }

        .guide-img {
            width: 300px;
            border-radius: 8px;
            box-shadow: 4px 4px 10px rgba(0,0,0,0.1);
        }

        @media (max-width: 768px) {
            .img-section {
                flex-direction: column;
            }
            .guide-img {
                width: 100%;
            }
        }

        /* 装饰元素 */
        .deco-line {
            height: 2px;
            background: linear-gradient(to right, transparent, var(--accent-color), transparent);
            margin: 2rem 0;
        }