* {
            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;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        ul, ol {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        header {
            background: linear-gradient(135deg, #1a237e, #4a148c);
            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;
        }
        .logo a {
            font-size: 2rem;
            font-weight: 800;
            color: #ffd700;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: color 0.3s ease;
        }
        .logo a:hover {
            color: #ffffff;
        }
        .logo .my-logo {
            font-style: italic;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .nav-container {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            gap: 2rem;
        }
        .nav-links a {
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            transition: background 0.3s ease, color 0.3s ease;
        }
        .nav-links a:hover {
            background: rgba(255, 255, 255, 0.2);
            color: #ffd700;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #ffd700;
        }
        .breadcrumb {
            background: #e3f2fd;
            padding: 0.8rem 2rem;
            font-size: 0.9rem;
            color: #555;
            border-bottom: 1px solid #ccc;
        }
        .breadcrumb a {
            color: #1a237e;
            font-weight: 500;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .main-container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 2rem;
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        .content-section {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 6px 15px rgba(0,0,0,0.08);
        }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 6px solid #ffd700;
            padding-left: 1rem;
        }
        h2 {
            font-size: 2rem;
            color: #4a148c;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #ffd700;
        }
        h3 {
            font-size: 1.6rem;
            color: #6a1b9a;
            margin: 1.5rem 0 0.8rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #8e24aa;
            margin: 1.2rem 0 0.6rem;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
            line-height: 1.7;
            color: #444;
        }
        .emphasis {
            font-weight: 700;
            color: #d81b60;
        }
        .highlight {
            background: #fff9c4;
            padding: 0.2rem 0.5rem;
            border-radius: 3px;
        }
        .article-image {
            margin: 2rem auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            max-width: 800px;
        }
        .article-image img {
            width: 100%;
            transition: transform 0.5s ease;
        }
        .article-image img:hover {
            transform: scale(1.03);
        }
        .link-list {
            background: #f3e5f5;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .link-list ul {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
        }
        .link-list li a {
            background: #7b1fa2;
            color: white;
            padding: 0.7rem 1.2rem;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .link-list li a:hover {
            background: #4a148c;
            transform: translateY(-3px);
            box-shadow: 0 4px 10px rgba(0,0,0,0.2);
        }
        .form-section {
            background: #e8f5e9;
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .form-title {
            font-size: 1.5rem;
            color: #2e7d32;
            margin-bottom: 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .form-title i {
            color: #388e3c;
        }
        form {
            display: grid;
            gap: 1rem;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.9rem;
            border: 2px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            border-color: #7b1fa2;
            outline: none;
        }
        button {
            background: linear-gradient(to right, #7b1fa2, #4a148c);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            justify-self: start;
        }
        button:hover {
            background: linear-gradient(to right, #6a1b9a, #38006b);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0,0,0,0.2);
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ffd700;
            cursor: pointer;
        }
        .star-rating i:hover {
            color: #ffab00;
        }
        footer {
            background: #1a237e;
            color: white;
            padding: 3rem 2rem 1.5rem;
            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: #ffd700;
            margin-bottom: 1.2rem;
            font-size: 1.4rem;
        }
        .footer-links a {
            display: block;
            margin-bottom: 0.8rem;
            transition: color 0.3s ease;
        }
        .footer-links a:hover {
            color: #ffd700;
        }
        friend-link {
            display: block;
            background: #0d47a1;
            padding: 1rem;
            border-radius: 8px;
            margin: 1rem 0;
            text-align: center;
            font-weight: 600;
        }
        friend-link a {
            color: #ffd700;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid #3949ab;
            font-size: 0.9rem;
            color: #bbdefb;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                align-items: flex-start;
            }
            .nav-container {
                width: 100%;
                justify-content: space-between;
                margin-top: 1rem;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #4a148c;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                border-radius: 0 0 10px 10px;
            }
            .nav-links.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .main-container {
                padding: 0 1rem;
            }
            .content-section {
                padding: 1.5rem;
            }
            .link-list ul {
                flex-direction: column;
                align-items: center;
            }
        }
        @media (max-width: 480px) {
            .header-container {
                padding: 1rem;
            }
            .breadcrumb {
                padding: 0.8rem 1rem;
            }
            .form-section {
                padding: 1.5rem;
            }
            button {
                width: 100%;
            }
        }