* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Arial', 'Verdana', 'Garamond', sans-serif;
            line-height: 1.8;
        }
        body {
            background-color: #f8f4e9;
            color: #1a1a1a;
            padding-bottom: 60px;
        }
        header {
            background-color: #8b4513;
            color: #ffffff;
            padding: 18px 5%;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 8px rgba(0,0,0,0.15);
        }
        .logo {
            font-size: 1.9rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.2px;
            color: #ffd700;
            text-shadow: 1px 1px 2px #00000040;
        }
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1300px;
            margin: 0 auto;
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .desktop-nav a {
            color: #ffffff;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            transition: all 0.3s ease;
            padding: 5px 0;
            border-bottom: 2px solid transparent;
        }
        .desktop-nav a:hover {
            color: #ffd700;
            border-bottom: 2px solid #ffd700;
        }
        .mobile-nav {
            display: none;
        }
        .hamburger {
            font-size: 2rem;
            cursor: pointer;
            color: #ffd700;
        }
        .mobile-menu {
            display: none;
            background-color: #a0522d;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 25px 5%;
            box-shadow: 0 4px 12px rgba(0,0,0,0.18);
            z-index: 99;
        }
        .mobile-menu ul {
            list-style: none;
        }
        .mobile-menu a {
            color: #ffffff;
            text-decoration: none;
            display: block;
            padding: 12px 0;
            border-bottom: 1px solid #d2b48c;
            font-weight: 500;
            font-size: 1.05rem;
            transition: color 0.2s;
        }
        .mobile-menu a:hover {
            color: #ffd700;
            padding-left: 8px;
        }
        .btn {
            padding: 12px 24px;
            border: none;
            border-radius: 6px;
            font-weight: 700;
            cursor: pointer;
            text-decoration: none;
            display: inline-block;
            margin: 12px 8px;
            transition: all 0.3s ease;
            font-size: 1.05rem;
            text-align: center;
        }
        .btn-download {
            background-color: #228b22;
            color: #ffffff;
        }
        .btn-login {
            background-color: #006400;
            color: #ffffff;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.2);
        }
        .btn:active {
            transform: translateY(1px);
            box-shadow: 0 2px 6px rgba(0,0,0,0.15);
        }
        main {
            max-width: 1300px;
            margin: 40px auto;
            padding: 0 5%;
        }
        h1 {
            font-size: 2.8rem;
            color: #8b4513;
            margin-bottom: 25px;
            border-bottom: 4px solid #ffd700;
            padding-bottom: 12px;
            font-weight: 800;
        }
        h2 {
            font-size: 2rem;
            color: #8b4513;
            margin: 35px 0 18px;
            font-weight: 700;
            position: relative;
            padding-left: 10px;
            border-left: 5px solid #ffd700;
        }
        h3 {
            font-size: 1.5rem;
            color: #a0522d;
            margin: 30px 0 12px;
            font-weight: 600;
        }
        h4 {
            font-size: 1.25rem;
            color: #a0522d;
            margin: 25px 0 10px;
            font-weight: 600;
        }
        p {
            margin: 12px 0;
            font-size: 1.05rem;
            text-align: justify;
            color: #212121;
        }
        strong {
            color: #8b4513;
            font-weight: 700;
        }
        .highlight {
            background-color: #fff8dc;
            padding: 4px 8px;
            border-left: 5px solid #ff8c00;
            margin: 15px 0;
            border-radius: 0 4px 4px 0;
        }
        .emoji-box {
            font-size: 1.3rem;
            margin: 20px 0;
            color: #8b4513;
            font-weight: 600;
        }
        .categories-tags {
            margin: 45px 0;
            padding: 25px;
            background-color: #ffffff;
            border-radius: 10px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.1);
        }
        .category-list, .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 15px;
        }
        .category-list a, .tag-list a {
            text-decoration: none;
            color: #ffffff;
            background-color: #b8860b;
            padding: 10px 18px;
            border-radius: 25px;
            font-size: 0.95rem;
            font-weight: 500;
            transition: background-color 0.2s ease;
        }
        .category-list a:hover, .tag-list a:hover {
            background-color: #8b4513;
        }
        .recommendation {
            background-color: #f0fff0;
            padding: 25px;
            border-radius: 10px;
            margin: 35px 0;
            border: 1px solid #90ee90;
        }
        .recommendation h3 {
            color: #228b22;
            border-left: 5px solid #228b22;
            padding-left: 10px;
        }
        footer {
            background-color: #8b4513;
            color: #ffffff;
            padding: 40px 5%;
            margin-top: 60px;
        }
        .footer-content {
            max-width: 1300px;
            margin: 0 auto;
        }
        .copyright {
            margin-top: 25px;
            padding-top: 25px;
            border-top: 1px solid #a0522d;
            font-size: 0.95rem;
            color: #f5f5f5;
            line-height: 1.9;
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .mobile-nav {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.35rem;
            }
            h4 {
                font-size: 1.15rem;
            }
            p {
                font-size: 1rem;
            }
            .category-list, .tag-list {
                gap: 10px;
            }
            .category-list a, .tag-list a {
                padding: 8px 15px;
                font-size: 0.9rem;
            }
            .btn {
                padding: 10px 20px;
                font-size: 1rem;
                margin: 10px 5px;
            }
            .logo {
                font-size: 1.6rem;
            }
        }
        img {
            max-width: 100%;
            height: auto;
            loading: lazy;
            border-radius: 8px;
        }
        .section-spacing {
            margin-bottom: 40px;
        }
        .paragraph-spacing {
            margin-bottom: 20px;
        }
        ul {
            margin: 18px 35px;
            list-style: disc;
        }
        li {
            margin: 10px 0;
            font-size: 1.05rem;
            color: #212121;
        }
        html {
            scroll-behavior: smooth;
        }
        a {
            color: #8b4513;
            text-decoration: none;
            font-weight: 600;
            transition: color 0.2s;
        }
        a:hover {
            color: #ff8c00;
        }
        :focus {
            outline: 3px solid #ffd700;
            outline-offset: 2px;
        }