:root {
            --primary-blue: #2c5aa0;
            --secondary-green: #6aaf08;
            --accent-yellow: #ffcc00;
            --dark-bg: #1a2b4a;
            --light-bg: #f5f8fd;
            --text-dark: #222;
            --text-light: #444;
            --text-muted: #666;
            --border-color: #ddd;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --radius: 12px;
            --transition: all 0.3s ease;
            font-size: 16px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: var(--light-bg);
            color: var(--text-dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        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;
            border-radius: var(--radius);
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, var(--dark-bg) 0%, var(--primary-blue) 100%);
            color: white;
            padding: 1.2rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 15px rgba(0,0,0,0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--accent-yellow);
        }
        .my-logo:hover {
            text-decoration: none;
            transform: scale(1.02);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover {
            text-decoration: none;
            color: var(--accent-yellow);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            background: var(--accent-yellow);
            left: 0;
            bottom: 0;
            transition: var(--transition);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #e9eff7;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--primary-blue);
        }
        .hero {
            background: linear-gradient(rgba(44, 90, 160, 0.85), rgba(44, 90, 160, 0.9)), url('https://images.unsplash.com/photo-1593305841991-05c297ba4575?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 4rem 2rem;
            text-align: center;
            border-radius: 0 0 var(--radius) var(--radius);
            margin-bottom: 3rem;
        }
        .hero h1 {
            font-size: 3.2rem;
            margin-bottom: 1rem;
            line-height: 1.2;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
        }
        .hero p {
            font-size: 1.4rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            opacity: 0.95;
        }
        .cta-button {
            display: inline-block;
            background-color: var(--secondary-green);
            color: white;
            padding: 1rem 2.5rem;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.2rem;
            box-shadow: 0 6px 15px rgba(106, 175, 8, 0.4);
            transition: var(--transition);
        }
        .cta-button:hover {
            background-color: #5a9a07;
            transform: translateY(-3px);
            text-decoration: none;
            box-shadow: 0 10px 20px rgba(106, 175, 8, 0.5);
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 3rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        main article {
            background: white;
            padding: 2.5rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        h1, h2, h3, h4 {
            color: var(--dark-bg);
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 { font-size: 2.8rem; }
        h2 {
            font-size: 2.2rem;
            border-bottom: 3px solid var(--secondary-green);
            padding-bottom: 0.5rem;
        }
        h3 { font-size: 1.8rem; color: var(--primary-blue); }
        h4 { font-size: 1.4rem; color: var(--text-light); }
        p, li {
            margin-bottom: 1.5rem;
            color: var(--text-light);
            font-size: 1.1rem;
        }
        ul, ol {
            padding-left: 2rem;
            margin-bottom: 1.5rem;
        }
        .highlight-box {
            background: linear-gradient(135deg, #e9f7ff 0%, #fff4e6 100%);
            border-left: 5px solid var(--accent-yellow);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .tip {
            background-color: #f0f9ff;
            padding: 1rem;
            border-radius: var(--radius);
            border: 1px dashed var(--primary-blue);
            margin: 1.5rem 0;
        }
        .tip i {
            color: var(--primary-blue);
            margin-right: 10px;
        }
        .img-container {
            margin: 2.5rem 0;
            text-align: center;
        }
        .img-container figcaption {
            font-style: italic;
            color: var(--text-muted);
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: white;
            border-radius: var(--radius);
            padding: 1.5rem;
            text-align: center;
            box-shadow: 0 3px 10px rgba(0,0,0,0.05);
            border-top: 4px solid var(--secondary-green);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 15px rgba(0,0,0,0.08);
        }
        .stat-card .number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-blue);
            line-height: 1;
        }
        .stat-card .label {
            font-size: 1rem;
            color: var(--text-muted);
            margin-top: 0.5rem;
        }
        aside.sidebar {
            background: white;
            padding: 2rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .widget {
            margin-bottom: 2.5rem;
        }
        .widget h3 {
            font-size: 1.5rem;
            margin-top: 0;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--border-color);
        }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        input, textarea, select {
            padding: 0.9rem;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            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(44, 90, 160, 0.1);
        }
        button, .form-button {
            background-color: var(--primary-blue);
            color: white;
            border: none;
            padding: 1rem;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        button:hover, .form-button:hover {
            background-color: #1e4a8a;
        }
        .star-rating {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ccc;
            margin: 1rem 0;
        }
        .star-rating i {
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating i:hover, .star-rating i.active {
            color: var(--accent-yellow);
        }
        .link-list {
            list-style: none;
            padding-left: 0;
        }
        .link-list li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dashed #eee;
        }
        .link-list a {
            display: block;
            padding: 0.5rem 0.8rem;
            border-radius: 6px;
            background-color: #f9f9f9;
        }
        .link-list a:hover {
            background-color: #eef5ff;
            text-decoration: none;
            padding-left: 1.2rem;
        }
        .site-footer {
            background-color: var(--dark-bg);
            color: #bbb;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            color: white;
            margin-bottom: 1rem;
        }
        .footer-section h4 {
            color: white;
            margin-top: 0;
            font-size: 1.3rem;
            border-bottom: 2px solid var(--primary-blue);
            padding-bottom: 0.5rem;
            display: inline-block;
        }
        friend-link {
            display: block;
            margin: 1rem 0;
            color: #aaa;
        }
        friend-link a {
            color: #aaa;
        }
        friend-link a:hover {
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #2a3d5f;
            font-size: 0.9rem;
            color: #888;
        }
        @media (max-width: 768px) {
            :root { font-size: 15px; }
            .hero h1 { font-size: 2.5rem; }
            .hero p { font-size: 1.2rem; }
            .main-nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--dark-bg);
                padding: 1rem;
                box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            }
            .main-nav.active ul {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .content-wrapper {
                gap: 2rem;
            }
            main article {
                padding: 1.5rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            aside.sidebar {
                position: static;
            }
        }
        .last-updated {
            text-align: right;
            font-style: italic;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px solid var(--border-color);
        }
        .emoji {
            font-size: 1.2em;
            margin: 0 2px;
        }
        .keyword {
            background-color: #fff9db;
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
            color: var(--text-dark);
        }