* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ed 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #ff6b35;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #e63946;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .site-header {
            background: linear-gradient(90deg, #1a2980, #26d0ce);
            color: white;
            padding: 1rem 2rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 2.5rem;
            font-weight: 900;
            text-transform: uppercase;
            letter-spacing: 2px;
            background: linear-gradient(45deg, #ffd166, #ff6b35);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        .my-logo:hover {
            transform: scale(1.05);
            transition: transform 0.3s ease;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 5px;
        }
        .main-nav a:hover {
            background: rgba(255,255,255,0.2);
        }
        #menu-toggle {
            display: none;
        }
        .menu-button {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        @media (max-width: 768px) {
            .menu-button {
                display: block;
            }
            .main-nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: #1a2980;
                padding: 1rem;
                box-shadow: 0 4px 8px rgba(0,0,0,0.2);
            }
            #menu-toggle:checked ~ .main-nav ul {
                display: flex;
            }
        }
        .breadcrumb {
            background: #e9ecef;
            padding: 0.8rem 2rem;
            font-size: 0.9rem;
            border-bottom: 1px solid #ced4da;
        }
        .breadcrumb a {
            color: #495057;
        }
        .breadcrumb a:hover {
            color: #ff6b35;
        }
        .container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 2rem;
            flex: 1;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: white;
            padding: 3rem;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }
        h1 {
            font-size: 3.2rem;
            color: #1a2980;
            margin-bottom: 1.5rem;
            border-bottom: 4px solid #ff6b35;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2.4rem;
            color: #264653;
            margin: 2.5rem 0 1rem;
            padding-left: 0.5rem;
            border-left: 5px solid #26d0ce;
        }
        h3 {
            font-size: 1.8rem;
            color: #2a9d8f;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #e76f51;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background: #fff3cd;
            padding: 1.5rem;
            border-left: 5px solid #ffc107;
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
        }
        .update-time {
            font-style: italic;
            color: #6c757d;
            text-align: right;
            margin-top: 3rem;
            padding-top: 1rem;
            border-top: 1px dashed #adb5bd;
        }
        .sidebar {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.06);
            align-self: start;
        }
        .search-box {
            margin-bottom: 2rem;
        }
        .search-box h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
        }
        .search-box form {
            display: flex;
        }
        .search-box input {
            flex: 1;
            padding: 0.8rem;
            border: 2px solid #26d0ce;
            border-radius: 5px 0 0 5px;
            font-size: 1rem;
        }
        .search-box button {
            background: #26d0ce;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 0 5px 5px 0;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.3s;
        }
        .search-box button:hover {
            background: #1a9c9a;
        }
        .rating-widget, .comment-widget {
            margin-top: 2.5rem;
        }
        .rating-widget h3, .comment-widget h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .star {
            font-size: 1.8rem;
            color: #ffd700;
            cursor: pointer;
            transition: transform 0.2s;
        }
        .star: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 #ced4da;
            border-radius: 5px;
            font-size: 1rem;
        }
        .comment-form textarea {
            min-height: 120px;
            resize: vertical;
        }
        .rating-form button, .comment-form button {
            background: #ff6b35;
            color: white;
            border: none;
            padding: 0.8rem;
            border-radius: 5px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: bold;
            transition: background 0.3s;
        }
        .rating-form button:hover, .comment-form button:hover {
            background: #e63946;
        }
        footer {
            background: #264653;
            color: white;
            padding: 3rem 2rem;
            margin-top: 4rem;
        }
        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
        }
        .footer-section h3 {
            color: #ffd166;
            margin-bottom: 1.5rem;
            font-size: 1.5rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
            padding: 0.5rem;
            background: rgba(255,255,255,0.05);
            border-radius: 5px;
            transition: background 0.3s;
        }
        friend-link:hover {
            background: rgba(255,255,255,0.1);
        }
        .copyright {
            text-align: center;
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 1px solid #2a9d8f;
            font-size: 0.9rem;
            color: #adb5bd;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 1rem;
            }
            article {
                padding: 2rem;
            }
            h1 {
                font-size: 2.5rem;
            }
            h2 {
                font-size: 2rem;
            }
        }