* { 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: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
            min-height: 100vh;
        }
        img { max-width: 100%; height: auto; display: block; }
        .site-header {
            background: linear-gradient(90deg, #1e3c72 0%, #2a5298 100%);
            color: white;
            padding: 1rem 5%;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: #FFD700;
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: 2px;
            font-family: 'Impact', 'Arial Black', sans-serif;
            text-shadow: 3px 3px 0 #1e3c72;
            transition: all 0.3s ease;
        }
        .my-logo:hover {
            color: #ffffff;
            text-shadow: 3px 3px 0 #FF4500;
            transform: scale(1.05);
        }
        .my-logo span { color: #00BFFF; }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-3px);
        }
        .breadcrumb {
            padding: 1rem 5%;
            background-color: #e9ecef;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb a {
            color: #2a5298;
            text-decoration: none;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        .search-container {
            background: white;
            padding: 2rem;
            margin: 2rem 5%;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            text-align: center;
        }
        .search-box {
            display: flex;
            max-width: 600px;
            margin: 1rem auto;
        }
        .search-box input {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: 2px solid #2a5298;
            border-radius: 50px 0 0 50px;
            font-size: 1.1rem;
            outline: none;
        }
        .search-box button {
            background: linear-gradient(90deg, #FF4500, #FF8C00);
            color: white;
            border: none;
            padding: 0 2rem;
            border-radius: 0 50px 50px 0;
            cursor: pointer;
            font-weight: bold;
            transition: all 0.3s;
        }
        .search-box button:hover {
            background: linear-gradient(90deg, #FF8C00, #FF4500);
            transform: scale(1.05);
        }
        .container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 0 5% 3rem;
            max-width: 1600px;
            margin: 0 auto;
        }
        main { background: white; padding: 2.5rem; border-radius: 15px; box-shadow: 0 10px 30px rgba(0,0,0,0.08); }
        article h1 {
            color: #1e3c72;
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #FFD700;
            padding-bottom: 1rem;
        }
        .meta {
            color: #666;
            margin-bottom: 2rem;
            font-style: italic;
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }
        article h2 {
            color: #2a5298;
            margin: 2.5rem 0 1rem;
            padding-left: 0.75rem;
            border-left: 5px solid #00BFFF;
        }
        article h3 {
            color: #FF4500;
            margin: 2rem 0 1rem;
        }
        article h4 {
            color: #228B22;
            margin: 1.5rem 0 0.75rem;
        }
        article p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.05rem;
        }
        .highlight {
            background: linear-gradient(120deg, #fffbcc 0%, #fffbcc 100%);
            padding: 1.5rem;
            border-left: 5px solid #FFD700;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .feature-img {
            width: 100%;
            border-radius: 12px;
            margin: 2rem 0;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            border: 3px solid #2a5298;
        }
        .btn {
            display: inline-block;
            background: linear-gradient(90deg, #1e3c72, #2a5298);
            color: white;
            padding: 0.8rem 1.8rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: bold;
            margin: 0.5rem;
            transition: all 0.3s;
            box-shadow: 0 4px 10px rgba(30, 60, 114, 0.3);
        }
        .btn:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 15px rgba(30, 60, 114, 0.4);
            background: linear-gradient(90deg, #2a5298, #1e3c72);
        }
        aside { background: white; padding: 2rem; border-radius: 15px; box-shadow: 0 10px 30px rgba(0,0,0,0.08); align-self: start; }
        .widget { margin-bottom: 2.5rem; }
        .widget h3 { color: #1e3c72; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 2px dashed #ddd; }
        .link-list { list-style: none; }
        .link-list li { margin-bottom: 0.8rem; }
        .link-list a {
            color: #2a5298;
            text-decoration: none;
            padding: 0.5rem;
            display: block;
            border-radius: 6px;
            transition: all 0.2s;
            border-left: 3px solid transparent;
        }
        .link-list a:hover {
            background-color: #f0f8ff;
            border-left-color: #FF4500;
            padding-left: 1rem;
        }
        .rating-widget, .comment-widget { background: #f9f9f9; padding: 1.5rem; border-radius: 10px; margin-top: 2rem; }
        .stars { display: flex; gap: 0.5rem; margin: 1rem 0; font-size: 1.8rem; color: #FFD700; cursor: pointer; }
        .stars span:hover { transform: scale(1.2); }
        .rating-form, .comment-form { display: flex; flex-direction: column; gap: 1rem; }
        .rating-form input, .comment-form input, .comment-form textarea {
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-family: inherit;
        }
        .comment-form textarea { min-height: 120px; resize: vertical; }
        .submit-btn {
            background: linear-gradient(90deg, #228B22, #32CD32);
            color: white;
            border: none;
            padding: 1rem;
            border-radius: 8px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
        }
        .submit-btn:hover { background: linear-gradient(90deg, #32CD32, #228B22); transform: scale(1.02); }
        footer {
            background: #1a1a2e;
            color: #ddd;
            padding: 3rem 5% 2rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        friend-link {
            display: block;
            margin: 1rem 0;
        }
        friend-link a {
            color: #00BFFF;
            text-decoration: none;
            padding: 0.3rem 0;
            display: inline-block;
        }
        friend-link a:hover { text-decoration: underline; color: #FFD700; }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #333;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 1024px) {
            .container { grid-template-columns: 1fr; }
            aside { order: -1; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav ul {
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: #2a5298;
                display: none;
                padding: 1rem 5%;
                box-shadow: 0 5px 10px rgba(0,0,0,0.2);
            }
            .main-nav.active ul { display: flex; }
            .header-top { flex-wrap: wrap; }
            article h1 { font-size: 2.2rem; }
            .main-nav a { justify-content: center; }
        }