*, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        :root {
            --primary: #82ca9c;
            --text: #2c3e50;
            --text-light: #555;
            --text-muted: #777;
            --white: #fff;
            --shadow: 0 2px 10px rgba(0,0,0,0.1);
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            color: var(--text-light);
            line-height: 1.7;
            padding-top: 70px;
        }

        a {
            color: var(--primary);
            text-decoration: none;
        }

        a:hover {
            text-decoration: underline;
        }

        /* Navigation */
        .nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: var(--white);
            box-shadow: var(--shadow);
            z-index: 1000;
            padding: 12px 0;
        }

        .nav-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            font-size: 1.3rem;
            color: var(--text);
            text-decoration: none;
        }

        .nav-brand img {
            height: 36px;
        }

        .nav-link {
            color: var(--text-light);
            font-weight: 500;
        }

        .nav-link:hover {
            color: var(--primary);
            text-decoration: none;
        }

        /* Content */
        .content {
            max-width: 800px;
            margin: 0 auto;
            padding: 40px 20px 60px;
        }

        h1 {
            color: var(--text);
            font-size: 2rem;
            margin-bottom: 30px;
        }

        h2 {
            color: var(--text);
            font-size: 1.25rem;
            margin-top: 35px;
            margin-bottom: 15px;
        }

        p {
            margin-bottom: 15px;
        }

        ul {
            margin: 15px 0;
            padding-left: 25px;
        }

        li {
            margin-bottom: 8px;
        }

        .info-box {
            background: #e8f5e9;
            border-left: 4px solid var(--primary);
            padding: 20px;
            margin: 25px 0;
        }

        .info-box p {
            margin: 0;
        }

        .update-date {
            margin-top: 50px;
            font-size: 0.85rem;
            color: #999;
        }

        /* Footer */
        footer {
            background: var(--text);
            color: #bdc3c7;
            padding: 30px 0;
            text-align: center;
        }

        footer a {
            color: #ecf0f1;
            margin: 0 10px;
        }

        footer a:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .footer-copy {
            margin-top: 15px;
            font-size: 0.85rem;
        }