:root {
            --primary: #7B3AED;
            --secondary: #10B981;
            --accent: #F59E0B;
            --dark: #1F2937;
            --light: #F9FAFB;
            --gray: #6B7280;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            --radius: 12px;
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #fff;
            color: var(--dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        header {
            background: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 16px 0;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -0.5px;
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 36px;
        }
        nav a {
            font-weight: 600;
            color: var(--dark);
            font-size: 1.05rem;
            padding: 8px 4px;
            position: relative;
        }
        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--accent);
            transition: width 0.3s ease;
        }
        nav a:hover::after, nav a.active::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--dark);
            cursor: pointer;
        }
        .breadcrumb {
            padding: 20px 0 10px;
            font-size: 0.95rem;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        main {
            padding: 40px 0 80px;
        }
        article {
            max-width: 900px;
            margin: 0 auto 60px;
        }
        h1 {
            font-size: 3.2rem;
            line-height: 1.2;
            margin-bottom: 28px;
            color: var(--dark);
            text-align: center;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.5rem;
            }
        }
        h2 {
            font-size: 2.2rem;
            margin: 50px 0 22px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--light);
            color: var(--primary);
        }
        h3 {
            font-size: 1.7rem;
            margin: 38px 0 18px;
            color: var(--secondary);
        }
        h4 {
            font-size: 1.3rem;
            margin: 30px 0 15px;
            color: var(--accent);
        }
        p {
            margin-bottom: 26px;
            font-size: 1.125rem;
            color: #374151;
        }
        .lead {
            font-size: 1.4rem;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 40px;
            text-align: center;
            padding: 0 10%;
        }
        .highlight-box {
            background: linear-gradient(135deg, #F0F9FF, #EFF6FF);
            border-left: 5px solid var(--primary);
            padding: 30px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 40px 0;
            box-shadow: var(--shadow);
        }
        .inline-link {
            font-weight: 700;
            border-bottom: 2px dotted var(--secondary);
        }
        .feature-img {
            width: 100%;
            margin: 45px auto;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .feature-img:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 30px rgba(0,0,0,0.15);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            margin-top: 12px;
            font-size: 0.95rem;
        }
        .interactive-module {
            background: white;
            border-radius: var(--radius);
            padding: 35px;
            margin: 50px 0;
            box-shadow: var(--shadow);
        }
        .module-title {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 30px;
        }
        .module-title i {
            font-size: 2rem;
            color: var(--primary);
        }
        form {
            display: grid;
            gap: 22px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        label {
            margin-bottom: 8px;
            font-weight: 600;
        }
        input, textarea, select {
            padding: 16px;
            border: 2px solid #E5E7EB;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(123, 58, 237, 0.1);
        }
        button, .btn {
            background: linear-gradient(135deg, var(--primary), #8B5CF6);
            color: white;
            border: none;
            padding: 18px 32px;
            border-radius: 10px;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            width: fit-content;
        }
        button:hover, .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(123, 58, 237, 0.3);
        }
        .rating-stars {
            display: flex;
            gap: 8px;
            margin: 15px 0;
        }
        .star {
            font-size: 2rem;
            color: #E5E7EB;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover, .star.active {
            color: var(--accent);
        }
        footer {
            background: var(--dark);
            color: white;
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 50px;
        }
        .footer-section h4 {
            color: white;
            margin-bottom: 25px;
            font-size: 1.4rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 15px;
        }
        .footer-links a {
            color: #D1D5DB;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 8px;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            padding: 20px;
            border-radius: var(--radius);
            margin: 20px 0;
            border-left: 4px solid var(--secondary);
        }
        .copyright {
            text-align: center;
            padding-top: 40px;
            border-top: 1px solid #374151;
            color: #9CA3AF;
            font-size: 0.95rem;
        }
        @media (max-width: 1024px) {
            nav ul {
                gap: 24px;
            }
            h1 {
                font-size: 2.8rem;
            }
            .lead {
                padding: 0 5%;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
            }
            nav.active {
                max-height: 500px;
                margin-top: 20px;
            }
            nav ul {
                flex-direction: column;
                gap: 0;
            }
            nav li {
                width: 100%;
                border-bottom: 1px solid #E5E7EB;
            }
            nav a {
                display: block;
                padding: 18px 0;
            }
            .interactive-module {
                padding: 25px;
            }
            h2 {
                font-size: 1.9rem;
            }
            h3 {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 18px;
            }
            h1 {
                font-size: 2rem;
            }
            .lead {
                font-size: 1.2rem;
            }
            button, .btn {
                width: 100%;
            }
        }
        .emoji {
            font-size: 1.3em;
            margin-right: 8px;
        }
        .bold {
            font-weight: 800;
            color: var(--dark);
        }
        .text-center {
            text-align: center;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mt-2 {
            margin-top: 20px;
        }
        .py-2 {
            padding-top: 20px;
            padding-bottom: 20px;
        }