:root {
            --primary-dark: #0a1a2d;
            --primary-blue: #1a5fce;
            --accent-orange: #ff7a00;
            --accent-red: #ce1a1a;
            --light-bg: #f5f9ff;
            --text-light: #e6edf7;
            --text-dark: #222;
            --border-radius: 8px;
            --shadow: 0 5px 15px rgba(0, 40, 120, 0.1);
            --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: var(--light-bg);
            color: var(--text-dark);
            line-height: 1.7;
        }
        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-orange);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary-dark) 0%, #152642 100%);
            color: var(--text-light);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(to right, var(--accent-orange), #ffcc00);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo:hover {
            transform: scale(1.03);
        }
        .search-box {
            display: flex;
            background: rgba(255,255,255,0.1);
            border-radius: 50px;
            padding: 5px;
            border: 1px solid rgba(255,255,255,0.2);
        }
        .search-box input {
            background: transparent;
            border: none;
            padding: 10px 15px;
            color: white;
            width: 250px;
            outline: none;
        }
        .search-box button {
            background: var(--primary-blue);
            color: white;
            border: none;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-box button:hover {
            background: var(--accent-orange);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        nav ul {
            display: flex;
            list-style: none;
            background: rgba(10, 26, 45, 0.95);
            border-radius: var(--border-radius);
            padding: 0.5rem;
            margin-top: 1rem;
        }
        nav ul li {
            margin: 0 10px;
        }
        nav ul li a {
            color: var(--text-light);
            padding: 8px 16px;
            border-radius: 4px;
            font-weight: 600;
        }
        nav ul li a:hover, nav ul li a.active {
            background: var(--primary-blue);
            color: white;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #aaa;
        }
        .breadcrumb a {
            color: #ccc;
        }
        .breadcrumb a:hover {
            color: white;
        }
        main {
            padding: 2rem 0;
        }
        article {
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            padding: 2.5rem;
            margin-bottom: 2rem;
        }
        h1 {
            color: var(--primary-dark);
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 6px solid var(--accent-orange);
            padding-left: 1rem;
        }
        h2 {
            color: var(--primary-blue);
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eaeaea;
            font-size: 2rem;
        }
        h3 {
            color: var(--primary-dark);
            margin: 2rem 0 1rem;
            font-size: 1.6rem;
        }
        h4 {
            color: #444;
            margin: 1.5rem 0 0.8rem;
            font-size: 1.3rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.2rem;
            background: linear-gradient(to right, #f0f7ff, #fff);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin-bottom: 2rem;
            border-left: 4px solid var(--primary-blue);
        }
        .highlight {
            background-color: #fff9e6;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            border-left: 4px solid var(--accent-orange);
            margin: 1.5rem 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: var(--light-bg);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            text-align: center;
            border-top: 4px solid var(--primary-blue);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }
        .stat-card i {
            font-size: 2.5rem;
            color: var(--primary-blue);
            margin-bottom: 1rem;
        }
        .feature-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: var(--border-radius);
            margin: 2rem auto;
            display: block;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            border: 3px solid white;
        }
        .link-box {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
        }
        .link-item {
            background: #f8fbff;
            padding: 1rem;
            border-radius: var(--border-radius);
            border: 1px solid #d1e3ff;
            transition: var(--transition);
        }
        .link-item:hover {
            background: #e6f0ff;
            border-color: var(--primary-blue);
        }
        .link-item a {
            font-weight: 600;
            display: block;
            margin-bottom: 0.5rem;
        }
        .link-item p {
            font-size: 0.9rem;
            color: #666;
            margin-bottom: 0;
        }
        .quote {
            font-style: italic;
            padding: 2rem;
            background: linear-gradient(45deg, #f0f7ff, #fff);
            border-radius: var(--border-radius);
            margin: 2rem 0;
            border-left: 5px solid var(--accent-red);
            font-size: 1.1rem;
            color: #333;
        }
        .author {
            text-align: right;
            font-weight: bold;
            color: var(--primary-blue);
            margin-top: 1rem;
        }
        .content-img {
            float: right;
            max-width: 400px;
            margin: 0 0 1.5rem 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .clearfix::after {
            content: "";
            clear: both;
            display: table;
        }
        .interactive-forms {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .form-box {
            background: #f8fbff;
            padding: 2rem;
            border-radius: var(--border-radius);
            border: 1px solid #cce0ff;
        }
        .form-box h3 {
            margin-top: 0;
            color: var(--primary-blue);
        }
        .form-box input, .form-box textarea, .form-box select {
            width: 100%;
            padding: 12px;
            margin-bottom: 1rem;
            border: 1px solid #b3d1ff;
            border-radius: 4px;
            background: white;
        }
        .form-box button {
            background: linear-gradient(to right, var(--primary-blue), #2a6fd6);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .form-box button:hover {
            background: linear-gradient(to right, var(--accent-orange), #ff944d);
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin: 1rem 0;
        }
        .stars i {
            color: #ddd;
            font-size: 1.8rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .stars i:hover, .stars i.active {
            color: #ffcc00;
        }
        .update-time {
            background: #e6f7e6;
            padding: 1rem;
            border-radius: var(--border-radius);
            margin-top: 2rem;
            text-align: center;
            color: #2d662d;
            border-left: 4px solid #4CAF50;
            font-weight: 600;
        }
        footer {
            background: var(--primary-dark);
            color: var(--text-light);
            padding: 3rem 0 1.5rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: var(--accent-orange);
            margin-bottom: 1.5rem;
            font-size: 1.5rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #ccc;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: inline-block;
            background: rgba(255,255,255,0.1);
            padding: 8px 15px;
            border-radius: 4px;
            margin: 5px;
            border: 1px solid rgba(255,255,255,0.2);
        }
        friend-link a {
            color: #ffcc00;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #2a3a5a;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            nav ul {
                flex-direction: column;
                display: none;
                width: 100%;
                margin-top: 1rem;
            }
            nav ul.show {
                display: flex;
            }
            nav ul li {
                margin: 5px 0;
            }
            .header-top {
                flex-direction: column;
                align-items: flex-start;
            }
            .search-box {
                margin-top: 1rem;
                width: 100%;
            }
            .search-box input {
                width: 100%;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            article {
                padding: 1.5rem;
            }
            .content-img {
                float: none;
                max-width: 100%;
                margin: 1rem 0;
            }
            .interactive-forms {
                grid-template-columns: 1fr;
            }
        }