:root {
            --primary: #7c4dff;
            --secondary: #00e5ff;
            --accent: #ffd700;
            --dark: #1a1a2e;
            --light: #f5f7fa;
            --text: #2d3436;
            --radius: 12px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: var(--light);
            color: var(--text);
            line-height: 1.75;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: all .3s;
        }
        a:hover {
            color: var(--secondary);
        }
        header {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, .3);
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 900;
            color: #fff;
            text-transform: uppercase;
            letter-spacing: 2px;
            background: linear-gradient(135deg, var(--accent), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 25px;
            flex-wrap: wrap;
        }
        .nav-list a {
            color: #e0e0e0;
            font-weight: 500;
            font-size: .95rem;
            padding: 8px 16px;
            border-radius: 20px;
            transition: all .3s;
        }
        .nav-list a:hover {
            background: rgba(124, 77, 255, .3);
            color: var(--accent);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #fff;
            cursor: pointer;
        }
        .breadcrumb {
            background: #fff;
            padding: 10px 0;
            border-bottom: 1px solid #eee;
            font-size: .85rem;
        }
        .breadcrumb a {
            color: var(--primary);
            margin: 0 5px;
        }
        .breadcrumb span {
            color: #999;
            margin: 0 5px;
        }
        .hero {
            background: linear-gradient(135deg, #1a1a2e, #7c4dff, #00e5ff);
            padding: 60px 20px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .hero h1 {
            font-size: 3rem;
            margin-bottom: 15px;
            text-shadow: 2px 2px 10px rgba(0, 0, 0, .4);
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto;
            opacity: .9;
        }
        .search-box {
            margin-top: 30px;
            display: flex;
            justify-content: center;
            gap: 10px;
        }
        .search-box input {
            padding: 12px 20px;
            border: none;
            border-radius: 30px;
            width: 100%;
            max-width: 500px;
            font-size: 1rem;
            outline: none;
            box-shadow: 0 4px 15px rgba(0, 0, 0, .2);
        }
        .search-box button {
            background: var(--accent);
            border: none;
            border-radius: 30px;
            padding: 12px 20px;
            font-size: 1rem;
            cursor: pointer;
            color: var(--dark);
            font-weight: 600;
            box-shadow: 0 4px 15px rgba(0, 0, 0, .2);
            transition: all .3s;
        }
        .search-box button:hover {
            transform: scale(1.05);
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            padding: 40px 20px;
        }
        .article-body {
            background: #fff;
            border-radius: var(--radius);
            padding: 40px;
            box-shadow: 0 2px 15px rgba(0, 0, 0, .08);
            max-width: 960px;
            margin: 0 auto;
        }
        .article-body h2 {
            font-size: 2rem;
            color: var(--dark);
            margin-top: 50px;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--primary);
            position: relative;
        }
        .article-body h2::after {
            content: '';
            position: absolute;
            bottom: -3px;
            left: 0;
            width: 60px;
            height: 3px;
            background: var(--accent);
        }
        .article-body h3 {
            font-size: 1.5rem;
            color: #2d3436;
            margin-top: 30px;
            margin-bottom: 12px;
            font-weight: 600;
        }
        .article-body h4 {
            font-size: 1.1rem;
            color: var(--primary);
            margin-top: 20px;
            margin-bottom: 8px;
            font-weight: 600;
        }
        .article-body p {
            margin-bottom: 18px;
            font-size: 1.02rem;
            line-height: 1.8;
        }
        .article-body ul,
        .article-body ol {
            margin: 15px 0 20px 25px;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body img {
            max-width: 100%;
            border-radius: var(--radius);
            margin: 20px 0;
            box-shadow: 0 4px 15px rgba(0, 0, 0, .1);
        }
        .image-caption {
            font-size: .9rem;
            color: #888;
            text-align: center;
            margin-top: -10px;
            margin-bottom: 20px;
        }
        .highlight-box {
            background: linear-gradient(135deg, #f0f0ff, #e6f7ff);
            border-left: 4px solid var(--primary);
            padding: 20px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 20px 0;
            font-style: italic;
        }
        .tip-box {
            background: #fff8e1;
            border-left: 4px solid var(--accent);
            padding: 18px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 20px 0;
        }
        .stats-table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            font-size: .95rem;
        }
        .stats-table th,
        .stats-table td {
            padding: 12px 15px;
            border: 1px solid #e0e0e0;
            text-align: left;
        }
        .stats-table th {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        .stats-table tr:nth-child(even) {
            background: #f8f9fa;
        }
        blockquote {
            border-left: 4px solid var(--secondary);
            padding: 15px 20px;
            margin: 20px 0;
            background: #e6f7ff;
            border-radius: 0 var(--radius) var(--radius) 0;
            font-style: italic;
            color: #555;
        }
        .rating-section {
            background: #fff;
            border-radius: var(--radius);
            padding: 30px;
            margin-top: 40px;
            box-shadow: 0 2px 15px rgba(0, 0, 0, .08);
            max-width: 960px;
            margin-left: auto;
            margin-right: auto;
        }
        .rating-stars {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            display: inline-flex;
            gap: 5px;
        }
        .rating-stars .active {
            color: var(--accent);
        }
        .comment-form textarea {
            width: 100%;
            padding: 15px;
            border: 1px solid #ddd;
            border-radius: var(--radius);
            resize: vertical;
            min-height: 120px;
            font-family: inherit;
            font-size: 1rem;
        }
        .comment-form input {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: var(--radius);
            margin-bottom: 10px;
            font-size: 1rem;
        }
        .btn-submit {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 30px;
            border-radius: 30px;
            font-size: 1rem;
            cursor: pointer;
            transition: all .3s;
            margin-top: 10px;
        }
        .btn-submit:hover {
            background: var(--secondary);
            color: var(--dark);
            transform: translateY(-2px);
        }
        footer {
            background: var(--dark);
            color: #a0a0a0;
            padding: 40px 20px 20px;
            margin-top: 60px;
        }
        footer a {
            color: var(--secondary);
        }
        .footer-inner {
            max-width: 1280px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }
        .footer-copy {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #333;
            margin-top: 30px;
            font-size: .85rem;
        }
        friend-link {
            display: block;
            padding: 10px 0;
            font-size: .95rem;
        }
        friend-link a {
            margin: 0 10px;
        }
        .back-to-top {
            position: fixed;
            bottom: 20px;
            right: 20px;
            background: var(--primary);
            color: #fff;
            width: 45px;
            height: 45px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            box-shadow: 0 4px 15px rgba(0, 0, 0, .3);
            transition: all .3s;
            z-index: 999;
        }
        .back-to-top:hover {
            background: var(--accent);
            color: var(--dark);
            transform: translateY(-5px);
        }
        @media (max-width: 768px) {
            .nav-list {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0;
                padding-top: 10px;
            }
            .nav-list.show {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .article-body {
                padding: 20px;
            }
            .article-body h2 {
                font-size: 1.5rem;
            }
            .article-body h3 {
                font-size: 1.2rem;
            }
            .search-box {
                flex-direction: column;
                align-items: center;
            }
            .search-box input {
                max-width: 100%;
            }
        }
        @media (max-width: 480px) {
            .header-inner {
                flex-wrap: nowrap;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .article-body {
                padding: 15px;
            }
        }