:root {
            --primary-color: #7b3fe4;
            --primary-dark: #5a2bb5;
            --secondary-color: #ff4d8d;
            --dark-bg: #1a1a2e;
            --light-bg: #f8f9ff;
            --text-dark: #2d2d3a;
            --text-light: #f0f0f5;
            --border-radius: 12px;
            --shadow: 0 8px 25px rgba(123, 63, 228, 0.12);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            font-size: 16px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: var(--light-bg);
            color: var(--text-dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-color);
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--dark-bg) 0%, #2d2d5a 100%);
            color: var(--text-light);
            padding: 1.2rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.2);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(to right, #ff4d8d, #7b3fe4);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -0.5px;
        }
        .my-logo:hover {
            transform: scale(1.03);
        }
        nav.desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2.2rem;
        }
        nav.desktop-nav a {
            color: var(--text-light);
            font-weight: 600;
            padding: 0.6rem 0;
            position: relative;
            font-size: 1.05rem;
        }
        nav.desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--secondary-color);
            transition: width 0.4s ease;
        }
        nav.desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 5px;
            padding: 10px;
        }
        .hamburger span {
            width: 28px;
            height: 3px;
            background-color: var(--text-light);
            border-radius: 2px;
            transition: var(--transition);
        }
        .mobile-nav {
            position: fixed;
            top: 80px;
            left: 0;
            width: 100%;
            background: var(--dark-bg);
            padding: 2rem;
            transform: translateY(-150%);
            opacity: 0;
            transition: transform 0.5s ease, opacity 0.3s ease;
            z-index: 999;
            box-shadow: inset 0 10px 20px rgba(0,0,0,0.2);
        }
        .mobile-nav.active {
            transform: translateY(0);
            opacity: 1;
        }
        .mobile-nav ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        .mobile-nav a {
            color: var(--text-light);
            font-size: 1.3rem;
            padding: 0.8rem;
            display: block;
            border-radius: var(--border-radius);
            border-left: 4px solid transparent;
        }
        .mobile-nav a:hover {
            background: rgba(255, 255, 255, 0.05);
            border-left-color: var(--secondary-color);
            padding-left: 1.2rem;
        }
        .breadcrumb {
            padding: 1.5rem 0 1rem;
            font-size: 0.95rem;
            color: #666;
        }
        .breadcrumb a {
            color: #666;
        }
        .breadcrumb a:hover {
            color: var(--primary-color);
        }
        main {
            padding: 2.5rem 0;
        }
        article {
            background: white;
            border-radius: var(--border-radius);
            padding: 3rem;
            box-shadow: var(--shadow);
            margin-bottom: 3rem;
        }
        h1 {
            font-size: 3.2rem;
            line-height: 1.2;
            margin-bottom: 1.5rem;
            color: var(--dark-bg);
            background: linear-gradient(90deg, var(--primary-dark), var(--secondary-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        h2 {
            font-size: 2.3rem;
            margin: 3rem 0 1.5rem;
            padding-bottom: 0.8rem;
            border-bottom: 3px solid var(--primary-color);
            color: var(--dark-bg);
        }
        h3 {
            font-size: 1.8rem;
            margin: 2.5rem 0 1.2rem;
            color: var(--primary-dark);
        }
        h4 {
            font-size: 1.4rem;
            margin: 2rem 0 1rem;
            color: #555;
        }
        p {
            margin-bottom: 1.8rem;
            font-size: 1.125rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.3rem;
            font-weight: 500;
            color: var(--primary-dark);
            border-left: 5px solid var(--secondary-color);
            padding-left: 1.5rem;
            margin-bottom: 2.5rem;
        }
        strong {
            color: var(--primary-dark);
            font-weight: 700;
        }
        em {
            color: var(--secondary-color);
            font-style: italic;
        }
        .highlight-box {
            background: linear-gradient(135deg, #f8f9ff, #eef1ff);
            border-left: 6px solid var(--primary-color);
            padding: 2rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            margin: 2.5rem 0;
            box-shadow: 0 5px 15px rgba(0,0,0,0.03);
        }
        .image-container {
            margin: 3rem auto;
            text-align: center;
            max-width: 900px;
        }
        .featured-img {
            width: 100%;
            border-radius: var(--border-radius);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
            transition: var(--transition);
        }
        .featured-img:hover {
            transform: translateY(-8px);
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
        }
        .img-caption {
            margin-top: 1rem;
            font-style: italic;
            color: #666;
            font-size: 0.95rem;
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.5rem;
            margin: 3rem 0;
        }
        .link-card {
            background: white;
            border-radius: var(--border-radius);
            padding: 1.8rem;
            box-shadow: 0 7px 20px rgba(123, 63, 228, 0.08);
            border: 1px solid #eaeaea;
            transition: var(--transition);
        }
        .link-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(123, 63, 228, 0.15);
        }
        .link-card h4 {
            margin-top: 0;
            color: var(--primary-color);
        }
        .interactive-section {
            background: linear-gradient(135deg, var(--dark-bg), #2a2a4a);
            color: var(--text-light);
            padding: 3rem;
            border-radius: var(--border-radius);
            margin: 4rem 0;
        }
        .interactive-section h2 {
            color: white;
            border-bottom-color: var(--secondary-color);
        }
        .form-group {
            margin-bottom: 1.8rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.6rem;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 1rem 1.2rem;
            border: 2px solid #ddd;
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
            background: white;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(123, 63, 228, 0.2);
        }
        .btn {
            display: inline-block;
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            color: white;
            padding: 1rem 2.5rem;
            border-radius: 50px;
            border: none;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(123, 63, 228, 0.4);
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            margin: 1.5rem 0;
            flex-wrap: wrap;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #ffcc00;
            transform: scale(1.2);
        }
        .last-updated {
            text-align: right;
            font-size: 0.9rem;
            color: #888;
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid #eee;
        }
        footer {
            background: var(--dark-bg);
            color: var(--text-light);
            padding: 4rem 0 2rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .footer-section h3 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.5rem;
            border-bottom: none;
        }
        friend-link {
            display: block;
            padding: 0.8rem 0;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        friend-link a {
            color: #ccc;
        }
        friend-link a:hover {
            color: white;
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.8rem; }
            h2 { font-size: 2.1rem; }
            article { padding: 2rem; }
        }
        @media (max-width: 768px) {
            .header-container { flex-wrap: wrap; }
            nav.desktop-nav { display: none; }
            .hamburger { display: flex; }
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.9rem; }
            .interactive-section { padding: 2rem; }
            .link-list { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            h1 { font-size: 2rem; }
            .container { padding: 0 15px; }
            article { padding: 1.5rem; }
            .btn { width: 100%; }
        }