:root {
            --primary-color: #ff4655;
            --secondary-color: #0f1923;
            --accent-color: #ece8e1;
            --text-color: #333;
            --light-bg: #f8f9fa;
            --border-color: #ddd;
            --shadow: 0 4px 12px rgba(15, 25, 35, 0.1);
            --transition: all 0.3s ease;
        }
        * {
            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: var(--text-color);
            background-color: #fff;
            overflow-x: hidden;
        }
        .site-header {
            background-color: var(--secondary-color);
            color: var(--accent-color);
            padding: 1rem 5%;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-family: 'Arial Black', Gadget, sans-serif;
            font-size: 2.2rem;
            color: var(--primary-color);
            text-decoration: none;
            letter-spacing: 1px;
            transition: var(--transition);
        }
        .my-logo:hover {
            color: #fff;
            text-shadow: 0 0 8px var(--primary-color);
        }
        .my-logo span {
            color: var(--accent-color);
            font-weight: normal;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        .main-nav a {
            color: var(--accent-color);
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 0;
            position: relative;
            transition: var(--transition);
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--primary-color);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary-color);
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--accent-color);
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: var(--light-bg);
            padding: 0.8rem 5%;
            font-size: 0.9rem;
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb a {
            color: var(--primary-color);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .hero {
            background: linear-gradient(rgba(15, 25, 35, 0.9), rgba(15, 25, 35, 0.8)), url('https://images.unsplash.com/photo-1550745165-9bc0b252726f?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80');
            background-size: cover;
            background-position: center;
            color: var(--accent-color);
            text-align: center;
            padding: 4rem 5%;
            margin-bottom: 2rem;
        }
        .hero h1 {
            font-size: 3.2rem;
            margin-bottom: 1.5rem;
            color: #fff;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            opacity: 0.9;
        }
        .search-form {
            max-width: 600px;
            margin: 2rem auto 0;
            display: flex;
        }
        .search-form input {
            flex-grow: 1;
            padding: 0.9rem 1.2rem;
            border: none;
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
        }
        .search-form button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: #e03c4a;
        }
        .container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 0 5% 3rem;
            max-width: 1600px;
            margin: 0 auto;
        }
        .main-content {
            background: #fff;
            padding: 2rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        .sidebar {
            background: var(--light-bg);
            padding: 1.8rem;
            border-radius: 8px;
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            color: var(--secondary-color);
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--primary-color);
        }
        .sidebar ul {
            list-style: none;
        }
        .sidebar li {
            margin-bottom: 0.8rem;
        }
        .sidebar a {
            color: var(--text-color);
            text-decoration: none;
            display: block;
            padding: 0.5rem 0;
            border-left: 3px solid transparent;
            transition: var(--transition);
            padding-left: 10px;
        }
        .sidebar a:hover {
            border-left-color: var(--primary-color);
            color: var(--primary-color);
            background-color: rgba(255, 70, 85, 0.05);
        }
        article h2, article h3, article h4 {
            color: var(--secondary-color);
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        article h2 {
            font-size: 2.2rem;
            border-left: 5px solid var(--primary-color);
            padding-left: 15px;
        }
        article h3 {
            font-size: 1.8rem;
        }
        article h4 {
            font-size: 1.4rem;
            color: #555;
        }
        article p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .highlight-box {
            background-color: #fff7f8;
            border-left: 4px solid var(--primary-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .content-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 8px;
            margin: 1.5rem auto;
            display: block;
            box-shadow: var(--shadow);
            transition: transform 0.5s ease;
        }
        .content-img:hover {
            transform: scale(1.01);
        }
        .internal-link {
            color: var(--primary-color);
            font-weight: 600;
            text-decoration: none;
            border-bottom: 1px dashed transparent;
            transition: var(--transition);
        }
        .internal-link:hover {
            border-bottom-color: var(--primary-color);
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .interactive-section {
            background-color: var(--light-bg);
            padding: 2.5rem;
            border-radius: 10px;
            margin: 3rem 0;
            border: 1px solid var(--border-color);
        }
        .rating-form,
        .comment-form {
            margin-top: 1.5rem;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1.5rem;
        }
        .star {
            font-size: 2rem;
            color: #ccc;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            font-family: inherit;
            font-size: 1rem;
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .btn-submit {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
        }
        .btn-submit:hover {
            background-color: #e03c4a;
            transform: translateY(-2px);
        }
        .site-footer {
            background-color: var(--secondary-color);
            color: var(--accent-color);
            padding: 3rem 5% 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: #fff;
            margin-bottom: 1.2rem;
            font-size: 1.3rem;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 1rem;
        }
        .friend-links a {
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--accent-color);
            padding: 0.5rem 1rem;
            border-radius: 4px;
            text-decoration: none;
            transition: var(--transition);
            font-size: 0.9rem;
        }
        .friend-links a:hover {
            background-color: var(--primary-color);
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            opacity: 0.8;
        }
        .update-time {
            font-style: italic;
            color: #777;
            margin: 2rem 0;
            padding: 1rem;
            background-color: #f9f9f9;
            border-radius: 4px;
        }
        @media (max-width: 1024px) {
            .container {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: var(--secondary-color);
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem 5%;
                box-shadow: var(--shadow);
            }
            .main-nav.active ul {
                display: flex;
            }
            .hero h1 {
                font-size: 2.5rem;
            }
            .header-container {
                flex-wrap: wrap;
            }
            .container {
                padding: 0 3% 2rem;
            }
            .main-content, .sidebar {
                padding: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input,
            .search-form button {
                width: 100%;
                border-radius: 4px;
                margin-bottom: 0.5rem;
            }
            article h2 {
                font-size: 1.8rem;
            }
            .interactive-section {
                padding: 1.5rem;
            }
        }