:root {
            --primary-blue: #1a5f7a;
            --secondary-blue: #57a0c7;
            --accent-yellow: #ffd166;
            --accent-red: #ef476f;
            --light-bg: #f8f9fa;
            --dark-text: #2d3748;
            --light-text: #4a5568;
            --white: #ffffff;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
            --border-radius: 12px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--dark-text);
            background-color: var(--light-bg);
            overflow-x: hidden;
        }
        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-red);
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary-blue) 0%, #0a3d62 100%);
            color: var(--white);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent-yellow);
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            font-family: 'Georgia', serif;
        }
        .my-logo span {
            color: var(--white);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: var(--white);
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background-color: rgba(255, 255, 255, 0.15);
            color: var(--accent-yellow);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--white);
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #e9f2f7;
            padding: 1rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: var(--light-text);
        }
        .hero {
            text-align: center;
            padding: 3rem 0;
            background: linear-gradient(rgba(255,255,255,0.9), rgba(255,255,255,0.7)), url('https://images.unsplash.com/photo-1542751371-adc38448a05e?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
            border-radius: var(--border-radius);
            margin-bottom: 3rem;
        }
        .hero h1 {
            font-size: 3.2rem;
            color: var(--primary-blue);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.3rem;
            color: var(--light-text);
            max-width: 800px;
            margin: 0 auto 2rem;
        }
        .search-box {
            max-width: 600px;
            margin: 2rem auto 0;
            display: flex;
            box-shadow: var(--shadow);
            border-radius: 50px;
            overflow: hidden;
        }
        .search-box input {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1rem;
        }
        .search-box button {
            background-color: var(--accent-red);
            color: white;
            border: none;
            padding: 0 2rem;
            cursor: pointer;
            font-weight: bold;
            transition: var(--transition);
        }
        .search-box button:hover {
            background-color: #d43a5f;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .main-content {
            background-color: var(--white);
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .sidebar {
            background-color: var(--white);
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            color: var(--primary-blue);
            border-bottom: 3px solid var(--accent-yellow);
            padding-bottom: 0.7rem;
            margin-bottom: 1.5rem;
        }
        .sidebar ul {
            list-style: none;
        }
        .sidebar li {
            margin-bottom: 1rem;
            padding-bottom: 1rem;
            border-bottom: 1px dashed #eee;
        }
        .sidebar a {
            display: block;
            padding: 0.5rem 0;
            font-weight: 500;
        }
        .article-image {
            width: 100%;
            height: 400px;
            object-fit: cover;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            box-shadow: var(--shadow);
            border: 5px solid var(--white);
        }
        .pull-quote {
            font-size: 1.5rem;
            font-style: italic;
            color: var(--primary-blue);
            border-left: 5px solid var(--accent-yellow);
            padding-left: 2rem;
            margin: 2.5rem 0;
            line-height: 1.5;
        }
        .stats-box {
            background: linear-gradient(to right, #e9f7ff, #f0f9ff);
            border-left: 5px solid var(--secondary-blue);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .highlight {
            background-color: #fff8e1;
            padding: 2rem;
            border-radius: var(--border-radius);
            border: 1px solid #ffecb3;
            margin: 2rem 0;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-blue);
            margin-bottom: 1.5rem;
        }
        h2 {
            font-size: 2.2rem;
            color: var(--primary-blue);
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.7rem;
            border-bottom: 2px solid var(--accent-yellow);
        }
        h3 {
            font-size: 1.7rem;
            color: var(--secondary-blue);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--dark-text);
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            color: var(--light-text);
        }
        strong {
            color: var(--primary-blue);
            font-weight: 700;
        }
        em {
            color: var(--secondary-blue);
        }
        ul, ol {
            margin-bottom: 1.5rem;
            padding-left: 2rem;
            color: var(--light-text);
        }
        li {
            margin-bottom: 0.7rem;
        }
        blockquote {
            font-size: 1.2rem;
            border-left: 4px solid var(--accent-red);
            padding-left: 1.5rem;
            margin: 2rem 0;
            color: #555;
        }
        .rating-module,
        .comments-module {
            background-color: var(--white);
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin: 3rem 0;
            border-top: 5px solid var(--primary-blue);
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0 2rem;
            font-size: 2rem;
            color: #ffc107;
        }
        .star {
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover {
            transform: scale(1.2);
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark-text);
        }
        .form-control {
            width: 100%;
            padding: 0.9rem 1rem;
            border: 1px solid #cbd5e0;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--secondary-blue);
            box-shadow: 0 0 0 3px rgba(87, 160, 199, 0.2);
        }
        .btn {
            background-color: var(--primary-blue);
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 8px;
            cursor: pointer;
            font-weight: bold;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.7rem;
        }
        .btn:hover {
            background-color: #0a3d62;
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(0,0,0,0.1);
        }
        .btn-accent {
            background-color: var(--accent-red);
        }
        .btn-accent:hover {
            background-color: #d43a5f;
        }
        .site-footer {
            background: linear-gradient(to right, var(--primary-blue), #0a3d62);
            color: var(--white);
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-yellow);
            margin-bottom: 1rem;
        }
        .footer-section h4 {
            color: var(--accent-yellow);
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-section ul {
            list-style: none;
            padding-left: 0;
        }
        .footer-section li {
            margin-bottom: 0.8rem;
        }
        .footer-section a {
            color: #d1d5db;
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }
        .footer-section a:hover {
            color: var(--accent-yellow);
            padding-left: 0.5rem;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.08);
            padding: 1rem;
            border-radius: 8px;
            margin-bottom: 1rem;
            border-left: 4px solid var(--accent-yellow);
            transition: var(--transition);
        }
        friend-link:hover {
            background-color: rgba(255,255,255,0.15);
            transform: translateX(5px);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #a0aec0;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .hero h1 {
                font-size: 2.5rem;
            }
            h1 {
                font-size: 2.3rem;
            }
            h2 {
                font-size: 1.9rem;
            }
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                background-color: var(--primary-blue);
                flex-direction: column;
                padding: 2rem;
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: var(--transition);
                box-shadow: var(--shadow);
                z-index: 999;
            }
            .main-nav.active {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
            }
            .main-nav ul {
                flex-direction: column;
                gap: 1rem;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1.1rem;
            }
            .main-content {
                padding: 1.5rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.8s ease-out;
        }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mt-2 { margin-top: 2rem; }
        .mb-3 { margin-bottom: 3rem; }
        .p-2 { padding: 2rem; }
        .bg-light { background-color: var(--light-bg); }
        .rounded { border-radius: var(--border-radius); }
        .shadow { box-shadow: var(--shadow); }
        .update-time {
            background-color: #e7f5ff;
            padding: 0.8rem 1.5rem;
            border-radius: 30px;
            display: inline-flex;
            align-items: center;
            gap: 0.7rem;
            font-size: 0.9rem;
            color: var(--primary-blue);
            margin-bottom: 2rem;
        }