* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
        }
        a {
            text-decoration: none;
            color: #007bff;
        }
        a:hover {
            color: #0056b3;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a237e 0%, #4a148c 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: bold;
            color: #ffcc00;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        nav a {
            color: white;
            font-weight: 500;
            padding: 0.5rem 0.75rem;
            border-radius: 4px;
            transition: background 0.3s ease;
        }
        nav a:hover {
            background: rgba(255, 255, 255, 0.2);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            padding: 1rem 0;
            background: #e9ecef;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #6c757d;
        }
        .breadcrumb a:hover {
            color: #495057;
        }
        main {
            padding: 2rem 0;
            background: white;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
            margin-bottom: 2rem;
        }
        article {
            padding: 0 1rem;
        }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1rem;
            text-align: center;
            border-bottom: 3px solid #ffcc00;
            padding-bottom: 1rem;
        }
        h2 {
            font-size: 2rem;
            color: #4a148c;
            margin: 2rem 0 1rem;
            padding-left: 0.5rem;
            border-left: 5px solid #007bff;
        }
        h3 {
            font-size: 1.5rem;
            color: #333;
            margin: 1.5rem 0 0.75rem;
        }
        h4 {
            font-size: 1.2rem;
            color: #555;
            margin: 1rem 0 0.5rem;
            font-style: italic;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
            line-height: 1.8;
        }
        .highlight {
            background: #fff3cd;
            padding: 1rem;
            border-left: 4px solid #ffc107;
            margin: 1.5rem 0;
            border-radius: 4px;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .featured-image {
            width: 80%;
            margin: 2rem auto;
            border: 5px solid #4a148c;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
        }
        .functional-section {
            background: #f1f8ff;
            padding: 2rem;
            border-radius: 8px;
            margin: 2rem 0;
            border: 1px solid #cfe2ff;
        }
        .functional-section h2 {
            border-left: none;
            padding-left: 0;
            text-align: center;
            color: #1a237e;
        }
        form {
            display: grid;
            gap: 1rem;
            max-width: 600px;
            margin: 0 auto;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.75rem;
            border: 1px solid #ced4da;
            border-radius: 4px;
            font-size: 1rem;
        }
        button {
            background: #007bff;
            color: white;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 4px;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.3s ease;
        }
        button:hover {
            background: #0056b3;
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            justify-content: center;
            margin-top: 1rem;
        }
        .star {
            font-size: 2rem;
            color: #ffcc00;
            cursor: pointer;
            transition: transform 0.2s ease;
        }
        .star:hover {
            transform: scale(1.2);
        }
        footer {
            background: #1a237e;
            color: white;
            padding: 2rem 0;
            text-align: center;
        }
        friend-link {
            display: block;
            margin: 1rem 0;
        }
        friend-link a {
            color: #ffcc00;
            font-weight: bold;
        }
        .copyright {
            margin-top: 2rem;
            font-size: 0.9rem;
            color: #b0b7d6;
            border-top: 1px solid #4a148c;
            padding-top: 1rem;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #4a148c;
                position: absolute;
                top: 100%;
                left: 0;
                z-index: 1000;
                padding: 1rem;
                border-radius: 0 0 8px 8px;
            }
            nav ul.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .featured-image {
                width: 95%;
            }
            .functional-section {
                padding: 1rem;
            }
        }
        @media (min-width: 769px) {
            .content-grid {
                display: grid;
                grid-template-columns: 2fr 1fr;
                gap: 2rem;
            }
        }
        .update-time {
            text-align: right;
            font-style: italic;
            color: #6c757d;
            margin-bottom: 1rem;
            font-size: 0.9rem;
        }
        .link-list {
            background: #e9ecef;
            padding: 1rem;
            border-radius: 8px;
            margin: 1.5rem 0;
        }
        .link-list ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
        }
        .link-list a {
            color: #495057;
            background: white;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            transition: all 0.3s ease;
        }
        .link-list a:hover {
            background: #007bff;
            color: white;
        }