* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.7;
            max-width: 100%;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        h1, h2, h3, h4 {
            color: #1a5fb4;
            margin-bottom: 1rem;
            line-height: 1.3;
            font-weight: 700;
        }
        h1 {
            font-size: clamp(2.2rem, 5vw, 3.5rem);
            margin-top: 1.5rem;
            border-bottom: 4px solid #58cc02;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: clamp(1.8rem, 4vw, 2.5rem);
            margin-top: 2.5rem;
            border-left: 5px solid #ffc800;
            padding-left: 15px;
        }
        h3 {
            font-size: clamp(1.4rem, 3vw, 1.9rem);
            margin-top: 2rem;
            color: #2d3748;
        }
        h4 {
            font-size: 1.3rem;
            color: #4a5568;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            color: #555;
            font-weight: 500;
        }
        .highlight {
            background-color: #e6f7e9;
            border-left: 4px solid #58cc02;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .term {
            font-weight: bold;
            color: #1a5fb4;
        }
        a {
            color: #1a5fb4;
            text-decoration: none;
            transition: color 0.3s ease, background-color 0.3s ease;
        }
        a:hover {
            color: #58cc02;
            text-decoration: underline;
        }
        header {
            background-color: #fff;
            box-shadow: 0 2px 15px rgba(0,0,0,0.08);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 900;
            color: #58cc02;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo:hover {
            color: #1a5fb4;
            text-decoration: none;
        }
        .my-logo i {
            font-size: 2.2rem;
        }
        .desktop-nav {
            display: flex;
            gap: 30px;
        }
        .desktop-nav a {
            font-weight: 600;
            font-size: 1.05rem;
            padding: 8px 0;
            position: relative;
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: #58cc02;
            transition: width 0.3s ease;
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #1a5fb4;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: #fff;
            padding: 20px;
            border-top: 1px solid #eee;
            box-shadow: 0 5px 10px rgba(0,0,0,0.05);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            padding: 15px 0;
            border-bottom: 1px solid #f0f0f0;
            font-weight: 600;
        }
        .mobile-nav a:last-child {
            border-bottom: none;
        }
        .breadcrumb {
            padding: 15px 20px;
            background-color: #f1f8ff;
            font-size: 0.95rem;
            margin-bottom: 20px;
        }
        .breadcrumb a {
            color: #5a6c7d;
        }
        .breadcrumb .separator {
            margin: 0 8px;
            color: #aaa;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 20px;
        }
        article {
            background-color: #fff;
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.04);
        }
        aside {
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .widget {
            background-color: #fff;
            padding: 25px;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.04);
            margin-bottom: 25px;
        }
        .widget h3 {
            font-size: 1.4rem;
            margin-top: 0;
            color: #1a5fb4;
            border-bottom: 2px solid #eee;
            padding-bottom: 10px;
        }
        .search-box {
            display: flex;
            margin-top: 15px;
        }
        .search-box input {
            flex-grow: 1;
            padding: 12px 15px;
            border: 2px solid #ddd;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s;
        }
        .search-box input:focus {
            border-color: #58cc02;
        }
        .search-box button {
            background-color: #1a5fb4;
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: background-color 0.3s;
        }
        .search-box button:hover {
            background-color: #58cc02;
        }
        .rating-widget form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .stars {
            display: flex;
            gap: 8px;
            justify-content: center;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            margin: 10px 0;
        }
        .stars .star:hover,
        .stars .star.active {
            color: #ffc800;
        }
        .rating-widget textarea {
            width: 100%;
            padding: 15px;
            border: 2px solid #eee;
            border-radius: 8px;
            min-height: 120px;
            resize: vertical;
            font-size: 1rem;
        }
        .rating-widget button {
            background-color: #58cc02;
            color: white;
            border: none;
            padding: 15px;
            border-radius: 8px;
            font-weight: bold;
            font-size: 1.05rem;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        .rating-widget button:hover {
            background-color: #4bb301;
        }
        .featured-img {
            margin: 2.5rem 0;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            position: relative;
        }
        .featured-img img {
            width: 100%;
            transition: transform 0.5s ease;
        }
        .featured-img:hover img {
            transform: scale(1.03);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            padding: 10px;
            background-color: #f9f9f9;
            font-size: 0.95rem;
        }
        .content-block {
            margin-bottom: 2.5rem;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 2rem 0;
        }
        .stat-card {
            background: linear-gradient(135deg, #e6f2ff, #ffffff);
            border-radius: 10px;
            padding: 25px;
            text-align: center;
            box-shadow: 0 5px 15px rgba(0,0,0,0.03);
            border: 1px solid #e1efff;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.08);
        }
        .stat-card .number {
            font-size: 2.8rem;
            font-weight: 900;
            color: #1a5fb4;
            line-height: 1;
            margin-bottom: 10px;
        }
        .stat-card .label {
            font-size: 1.1rem;
            color: #4a5568;
            font-weight: 600;
        }
        .link-list {
            background-color: #f8fdff;
            border: 1px dashed #a0d2ff;
            border-radius: 10px;
            padding: 25px;
            margin: 2.5rem 0;
        }
        .link-list h3 {
            margin-top: 0;
        }
        .link-list ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 12px;
        }
        .link-list li {
            padding: 10px 15px;
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.03);
            transition: background-color 0.3s;
        }
        .link-list li:hover {
            background-color: #e6f7ff;
        }
        .link-list a {
            color: #2d3748;
            display: block;
            font-weight: 500;
        }
        .link-list a:hover {
            color: #1a5fb4;
        }
        footer {
            background-color: #1a2b3c;
            color: #cbd5e0;
            padding: 50px 20px 30px;
            margin-top: 50px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 900;
            color: #58cc02;
            margin-bottom: 15px;
        }
        .footer-links h4 {
            color: #fff;
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #cbd5e0;
        }
        .footer-links a:hover {
            color: #58cc02;
        }
        friend-link {
            display: block;
            padding: 15px;
            background-color: #2d3748;
            border-radius: 8px;
            margin-bottom: 10px;
            text-align: center;
            font-weight: 600;
            transition: all 0.3s;
        }
        friend-link:hover {
            background-color: #3a4558;
            transform: scale(1.02);
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            margin-top: 30px;
            border-top: 1px solid #2d3748;
            font-size: 0.95rem;
            color: #94a3b8;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            aside {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                padding: 12px 15px;
            }
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .breadcrumb {
                padding: 12px 15px;
                font-size: 0.9rem;
            }
            article, .widget {
                padding: 20px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .link-list ul {
                grid-template-columns: 1fr;
            }
            .footer-container {
                grid-template-columns: 1fr;
                text-align: center;
            }
        }