:root {
            --primary-blue: #0033a0;
            --secondary-green: #009a3e;
            --accent-gold: #ffd700;
            --neutral-light: #f8f9fa;
            --neutral-dark: #212529;
            --neutral-gray: #6c757d;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --border-radius: 8px;
            --transition: all 0.3s ease;
            font-size: 16px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--neutral-dark);
            background-color: #fff;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-green);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary-blue) 0%, #001f5e 100%);
            color: white;
            padding: 1.5rem 0;
            border-bottom: 5px solid var(--accent-gold);
            margin-bottom: 2rem;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo a {
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--accent-gold);
        }
        .my-logo:hover a {
            color: var(--accent-gold);
        }
        .nav-primary {
            display: flex;
            gap: 1.5rem;
        }
        .nav-primary a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .nav-primary a:hover {
            color: var(--accent-gold);
        }
        .nav-primary a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-gold);
            transition: width 0.3s ease;
        }
        .nav-primary a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: var(--neutral-gray);
            border-bottom: 1px solid #eee;
            margin-bottom: 2rem;
        }
        .breadcrumb a {
            color: var(--neutral-gray);
        }
        .breadcrumb a:hover {
            color: var(--primary-blue);
        }
        .breadcrumb i {
            margin: 0 8px;
        }
        article {
            margin-bottom: 3rem;
            padding: 0 1rem;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-blue);
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 6px solid var(--secondary-green);
            padding-left: 1rem;
        }
        h2 {
            font-size: 2rem;
            color: var(--neutral-dark);
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eee;
        }
        h3 {
            font-size: 1.6rem;
            color: var(--primary-blue);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--secondary-green);
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: var(--neutral-dark);
            background: #f0f8ff;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            border-left: 4px solid var(--primary-blue);
            margin-bottom: 2.5rem;
        }
        .highlight-box {
            background: linear-gradient(to right, #e6f7ff, #f0fff4);
            border: 1px solid #b3e0ff;
            padding: 2rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: var(--border-radius);
            margin: 2.5rem auto;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            border: 5px solid white;
        }
        emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        strong {
            color: var(--primary-blue);
        }
        ul, ol {
            margin-bottom: 1.5rem;
            padding-left: 2rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        blockquote {
            font-style: italic;
            color: var(--neutral-gray);
            border-left: 4px solid var(--accent-gold);
            padding-left: 1.5rem;
            margin: 2rem 0;
        }
        .interactive-module {
            background: var(--neutral-light);
            border-radius: var(--border-radius);
            padding: 2rem;
            margin: 3rem 0;
            box-shadow: var(--shadow);
        }
        .module-title {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--primary-blue);
            margin-bottom: 1.5rem;
        }
        form {
            display: grid;
            gap: 1.2rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        label {
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--neutral-dark);
        }
        input, textarea, select {
            padding: 0.9rem;
            border: 1px solid #ced4da;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-blue);
            box-shadow: 0 0 0 3px rgba(0, 51, 160, 0.1);
        }
        button, .btn {
            background: linear-gradient(to right, var(--primary-blue), var(--secondary-green));
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--border-radius);
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }
        button:hover, .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(0, 51, 160, 0.2);
            text-decoration: none;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .rating-stars i {
            color: #ddd;
            cursor: pointer;
            font-size: 1.5rem;
            transition: var(--transition);
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: var(--accent-gold);
        }
        .site-footer {
            background: var(--neutral-dark);
            color: #adb5bd;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
            border-top: 5px solid var(--accent-gold);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-section h4 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
        }
        friend-link a {
            color: #adb5bd;
            text-decoration: none;
        }
        friend-link a:hover {
            color: white;
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #495057;
            font-size: 0.9rem;
        }
        .update-time {
            font-size: 0.9rem;
            color: var(--neutral-gray);
            background: #f8f9fa;
            padding: 0.8rem;
            border-radius: var(--border-radius);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 2rem;
        }
        @media (max-width: 768px) {
            :root {
                font-size: 14px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .header-container {
                flex-direction: column;
                align-items: flex-start;
                gap: 1rem;
            }
            .nav-primary {
                flex-direction: column;
                width: 100%;
                display: none;
                gap: 0;
            }
            .nav-primary.active {
                display: flex;
            }
            .nav-primary a {
                padding: 1rem;
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1.5rem;
                right: 15px;
            }
            .my-logo {
                font-size: 1.8rem;
            }
            .interactive-module {
                padding: 1.5rem;
            }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            body {
                padding: 0 30px;
            }
        }
        .text-center {
            text-align: center;
        }
        .mb-3 {
            margin-bottom: 3rem;
        }
        .mt-3 {
            margin-top: 3rem;
        }
        .d-flex {
            display: flex;
        }
        .align-center {
            align-items: center;
        }
        .justify-between {
            justify-content: space-between;
        }