* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.8;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: #1cb0f6;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #ffcc00;
        }
        ul, ol {
            list-style-position: inside;
            margin-left: 1.5rem;
        }
        header {
            background: linear-gradient(135deg, #58cc02, #1cb0f6);
            color: white;
            padding: 1rem 2rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 2.5rem;
            font-weight: 900;
            color: white;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            letter-spacing: 1px;
        }
        .my-logo:hover {
            color: #ffde59;
        }
        nav ul {
            display: flex;
            gap: 2rem;
        }
        nav li {
            list-style: none;
        }
        nav a {
            color: white;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            transition: background 0.3s;
        }
        nav a:hover {
            background: rgba(255,255,255,0.2);
        }
        .breadcrumb {
            padding: 1rem 2rem;
            background: #e9ecef;
            font-size: 0.9rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        .breadcrumb a {
            color: #555;
        }
        .breadcrumb a:hover {
            color: #1cb0f6;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        main {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 2rem;
            background: white;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.05);
            overflow: hidden;
        }
        article {
            padding: 2rem;
        }
        h1 {
            color: #58cc02;
            font-size: 3rem;
            margin-bottom: 1rem;
            text-align: center;
            border-bottom: 3px solid #ffcc00;
            padding-bottom: 1rem;
        }
        .update-time {
            text-align: center;
            color: #666;
            font-style: italic;
            margin-bottom: 2rem;
        }
        h2 {
            color: #1cb0f6;
            font-size: 2.2rem;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            padding-left: 0.5rem;
            border-left: 5px solid #58cc02;
        }
        h3 {
            color: #333;
            font-size: 1.8rem;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
        }
        h4 {
            color: #555;
            font-size: 1.5rem;
            margin-top: 1.5rem;
            margin-bottom: 0.6rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
            line-height: 1.9;
        }
        strong {
            color: #58cc02;
            font-weight: 800;
        }
        em {
            color: #1cb0f6;
            font-style: italic;
        }
        .highlight {
            background: #ffde59;
            padding: 0.2rem 0.5rem;
            border-radius: 5px;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.1);
            margin: 1.5rem auto;
            display: block;
        }
        .feature-box {
            background: #f1f8ff;
            border-left: 4px solid #1cb0f6;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
        }
        .quote {
            font-size: 1.3rem;
            color: #555;
            border-left: 4px solid #ffcc00;
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
        }
        .form-section {
            margin: 3rem 0;
            padding: 2rem;
            background: #f8f9fa;
            border-radius: 10px;
            border: 1px solid #ddd;
        }
        form {
            display: grid;
            gap: 1rem;
            max-width: 600px;
            margin: 0 auto;
        }
        label {
            font-weight: 600;
            color: #333;
        }
        input, textarea, select {
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            border-color: #58cc02;
            outline: none;
        }
        button {
            background: linear-gradient(to right, #58cc02, #1cb0f6);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 25px;
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        button:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        footer {
            background: #2d3748;
            color: white;
            padding: 3rem 2rem;
            margin-top: 3rem;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h3 {
            color: #ffcc00;
            margin-bottom: 1rem;
            font-size: 1.5rem;
        }
        friend-link {
            display: block;
            margin: 0.5rem 0;
            color: #1cb0f6;
        }
        friend-link:hover {
            color: #ffde59;
        }
        .copyright {
            text-align: center;
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid #4a5568;
            color: #ccc;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1cb0f6;
                padding: 1rem;
                border-radius: 10px;
                margin-top: 1rem;
            }
            nav ul.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            p {
                font-size: 1rem;
            }
            main {
                padding: 0 1rem;
            }
            article {
                padding: 1.5rem;
            }
            .footer-container {
                grid-template-columns: 1fr;
            }
        }
        .grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .flex {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
        }
        .card {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.08);
            transition: transform 0.3s;
        }
        .card:hover {
            transform: translateY(-5px);
        }