* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f9f7f1;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        a { color: #4a6fa5; text-decoration: none; transition: color 0.3s; }
        a:hover { color: #e07a5f; }
        img { max-width: 100%; height: auto; display: block; }
        .site-header {
            background: linear-gradient(135deg, #2a9d8f 0%, #264653 100%);
            color: white;
            padding: 1.5rem 0;
            border-bottom: 5px solid #e9c46a;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-family: 'Courier New', monospace;
            font-size: 2.2rem;
            font-weight: bold;
            color: #e9c46a;
            text-shadow: 2px 2px 0 #264653;
            padding-left: 10px;
        }
        .my-logo a { color: inherit; }
        .main-nav ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .main-nav li { margin-left: 1.8rem; }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0.3rem;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover, .main-nav a.active {
            border-bottom-color: #e9c46a;
            color: #e9c46a;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0 15px;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #666;
            background-color: #edede9;
            margin-bottom: 2rem;
            border-radius: 0 0 5px 5px;
        }
        .breadcrumb a { color: #4a6fa5; }
        .breadcrumb a:hover { text-decoration: underline; }
        .content-area {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        article { background: white; padding: 2rem; border-radius: 10px; box-shadow: 0 5px 15px rgba(0,0,0,0.05); }
        h1 { color: #264653; font-size: 2.8rem; margin-bottom: 1.5rem; border-left: 6px solid #2a9d8f; padding-left: 15px; }
        h2 { color: #2a9d8f; font-size: 2rem; margin: 2.5rem 0 1rem; padding-bottom: 0.5rem; border-bottom: 2px dashed #e9c46a; }
        h3 { color: #e76f51; font-size: 1.5rem; margin: 1.8rem 0 0.8rem; }
        h4 { color: #4a6fa5; font-size: 1.2rem; margin: 1.5rem 0 0.5rem; }
        p { margin-bottom: 1.2rem; text-align: justify; }
        strong { color: #264653; }
        em { color: #666; }
        .intro { font-size: 1.2rem; background: #f4f1de; padding: 1.5rem; border-radius: 8px; margin-bottom: 2rem; border-left: 4px solid #e9c46a; }
        .highlight-box {
            background: linear-gradient(to right, #edf6f9, #ffddd2);
            border-left: 5px solid #e07a5f;
            padding: 1.2rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .tip { background-color: #d8f3dc; padding: 1rem; border-radius: 8px; margin: 1.5rem 0; border: 1px solid #95d5b2; }
        .tip i { color: #2d6a4f; margin-right: 10px; }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        aside {
            background: #edede9;
            padding: 1.5rem;
            border-radius: 10px;
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget { margin-bottom: 2rem; }
        .sidebar-widget h3 { color: #264653; font-size: 1.3rem; margin-top: 0; }
        .widget-form { display: flex; flex-direction: column; }
        .widget-form input, .widget-form textarea, .widget-form select {
            padding: 10px;
            margin-bottom: 12px;
            border: 1px solid #ccc;
            border-radius: 5px;
            font-family: inherit;
        }
        .widget-form button {
            background: #2a9d8f;
            color: white;
            border: none;
            padding: 12px;
            border-radius: 5px;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
        }
        .widget-form button:hover { background: #21867a; }
        .star-rating { direction: rtl; display: inline-block; font-size: 1.8rem; }
        .star-rating input { display: none; }
        .star-rating label { color: #ddd; cursor: pointer; }
        .star-rating label:hover,
        .star-rating label:hover ~ label,
        .star-rating input:checked ~ label { color: #f4d03f; }
        .article-img {
            width: 100%;
            max-width: 600px;
            margin: 2rem auto;
            border: 3px solid #e9c46a;
            border-radius: 10px;
            overflow: hidden;
        }
        .article-img img { width: 100%; transition: transform 0.5s; }
        .article-img:hover img { transform: scale(1.03); }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            padding: 0.5rem;
            background: #f8f9fa;
        }
        .internal-links {
            background: #f1faee;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .internal-links ul { columns: 2; list-style-position: inside; }
        .internal-links li { margin-bottom: 0.5rem; }
        footer {
            background: #264653;
            color: #e9f5db;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
            border-top: 5px solid #2a9d8f;
            text-align: center;
        }
        friend-link {
            display: block;
            margin: 1.5rem 0;
        }
        friend-link a {
            color: #e9c46a;
            font-weight: bold;
            margin: 0 10px;
        }
        .copyright {
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid #2a9d8f;
            font-size: 0.9rem;
            color: #adb5bd;
        }
        @media (max-width: 768px) {
            .content-area { grid-template-columns: 1fr; }
            .header-container { flex-direction: column; align-items: flex-start; }
            .main-nav { width: 100%; margin-top: 1rem; display: none; }
            .main-nav.active { display: block; }
            .main-nav ul { flex-direction: column; }
            .main-nav li { margin: 0; border-bottom: 1px solid rgba(255,255,255,0.1); }
            .main-nav a { display: block; padding: 0.8rem 0; }
            .hamburger { display: block; align-self: flex-end; margin-top: -3rem; }
            h1 { font-size: 2.2rem; }
            .internal-links ul { columns: 1; }
            aside { position: static; }
        }