:root {
            --primary: #FF6B8B;
            --secondary: #7B68EE;
            --accent: #20B2AA;
            --dark: #2C3E50;
            --light: #F8F9FA;
            --gray: #6C757D;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --radius: 12px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #fff;
            color: #333;
            line-height: 1.7;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--dark) 0%, #4A235A 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--primary);
        }
        .logo span {
            background: linear-gradient(to right, var(--primary), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 0;
            position: relative;
            transition: var(--transition);
        }
        .nav-links a:hover {
            color: var(--primary);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--primary);
            transition: width 0.3s ease;
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: white;
            border-radius: 2px;
            transition: var(--transition);
        }
        .breadcrumb {
            background-color: #f1f3f5;
            padding: 1rem 0;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
        }
        .breadcrumb a {
            color: var(--secondary);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '/';
            margin-left: 0.5rem;
            color: var(--gray);
        }
        main {
            padding: 2rem 0;
        }
        article {
            background: white;
            border-radius: var(--radius);
            padding: 2.5rem;
            box-shadow: var(--shadow);
            margin-bottom: 3rem;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--dark);
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: var(--secondary);
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--accent);
        }
        h3 {
            font-size: 1.5rem;
            color: var(--dark);
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            color: var(--dark);
            font-weight: 500;
            padding: 1.2rem;
            background: linear-gradient(90deg, #e3f2fd, #f3e5f5);
            border-left: 5px solid var(--secondary);
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 2rem 0;
        }
        emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .highlight {
            background-color: #fffacd;
            padding: 0.2rem 0.4rem;
            border-radius: 4px;
            font-weight: 600;
        }
        strong {
            color: var(--dark);
            font-weight: 700;
        }
        .content-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: var(--radius);
            margin: 2rem auto;
            display: block;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            transition: transform 0.5s ease;
        }
        .content-img:hover {
            transform: scale(1.02);
        }
        figcaption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            margin-top: 0.5rem;
        }
        blockquote {
            border-left: 5px solid var(--primary);
            padding: 1.5rem 2rem;
            margin: 2rem 0;
            background: #f8f9fa;
            border-radius: 0 var(--radius) var(--radius) 0;
            font-size: 1.2rem;
            color: #555;
        }
        blockquote cite {
            display: block;
            margin-top: 1rem;
            font-weight: 600;
            color: var(--secondary);
        }
        .download-box {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 2.5rem;
            border-radius: var(--radius);
            margin: 3rem 0;
            text-align: center;
            box-shadow: var(--shadow);
        }
        .download-box h3 {
            color: white;
            margin-top: 0;
        }
        .btn {
            display: inline-block;
            background: var(--primary);
            color: white;
            padding: 0.9rem 2.2rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.1rem;
            margin: 1rem 0.5rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn:hover {
            background: #ff5252;
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(255, 107, 139, 0.4);
        }
        .btn-secondary {
            background: var(--accent);
        }
        .btn-secondary:hover {
            background: #1daaa0;
            box-shadow: 0 7px 14px rgba(32, 178, 170, 0.4);
        }
        .search-widget {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: var(--radius);
            margin: 3rem 0;
            text-align: center;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 1.5rem auto 0;
        }
        .search-form input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: 2px solid #ddd;
            border-radius: 50px 0 0 50px;
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }
        .search-form input:focus {
            border-color: var(--secondary);
        }
        .search-form button {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 0 2rem;
            border-radius: 0 50px 50px 0;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: #6a5acd;
        }
        .interactive-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            margin: 4rem 0;
        }
        @media (max-width: 768px) {
            .interactive-section {
                grid-template-columns: 1fr;
            }
        }
        .comment-box, .rating-box {
            background: white;
            padding: 2.5rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin: 1.5rem 0;
            font-size: 2rem;
            color: #FFD700;
            justify-content: center;
        }
        .rating-stars i {
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-stars i:hover {
            transform: scale(1.2);
        }
        form label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark);
        }
        form input, form textarea, form select {
            width: 100%;
            padding: 1rem;
            margin-bottom: 1.5rem;
            border: 1px solid #ddd;
            border-radius: var(--radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        form input:focus, form textarea:focus {
            border-color: var(--secondary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(123, 104, 238, 0.2);
        }
        .longtail-links {
            background: #2C3E50;
            color: white;
            padding: 3rem 0;
            margin-top: 4rem;
        }
        .web-link {
            display: inline-block;
            margin: 0.8rem 1.5rem;
        }
        .web-link a {
            color: #BBBBBB;
            text-decoration: none;
            transition: var(--transition);
            font-size: 1.05rem;
        }
        .web-link a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        footer {
            background: #1a252f;
            color: #aaa;
            padding: 3rem 0 2rem;
            text-align: center;
        }
        .footer-content {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h4 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #aaa;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--primary);
            padding-left: 5px;
        }
        .copyright {
            border-top: 1px solid #34495e;
            padding-top: 2rem;
            font-size: 0.95rem;
            color: #7f8c8d;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
            .nav-links {
                gap: 1.2rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--dark);
                flex-direction: column;
                align-items: center;
                padding: 2rem 0;
                gap: 1.5rem;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
                z-index: 999;
            }
            .nav-links.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .header-content {
                padding: 0 1rem;
            }
            article {
                padding: 1.8rem;
            }
            .interactive-section {
                gap: 2rem;
            }
        }
        @media (max-width: 576px) {
            .container {
                padding: 0 15px;
            }
            h1 { font-size: 2rem; }
            .lead { font-size: 1.1rem; }
            .btn {
                padding: 0.8rem 1.8rem;
                font-size: 1rem;
            }
            .download-box {
                padding: 1.8rem;
            }
        }