:root {
            --primary-blue: #0066CC;
            --primary-red: #FF3333;
            --primary-yellow: #FFCC00;
            --primary-green: #00AA55;
            --primary-black: #1A1A1A;
            --light-bg: #F8F9FA;
            --border-color: #DEE2E6;
            --text-primary: #212529;
            --text-secondary: #6C757D;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.6;
            color: var(--text-primary);
            background-color: var(--light-bg);
            overflow-x: hidden;
        }
        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-red);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, var(--primary-red), var(--primary-blue), var(--primary-yellow), var(--primary-green));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -1px;
        }
        .my-logo a {
            background: none;
        }
        .nav-desktop {
            display: flex;
            gap: 25px;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            font-weight: 600;
            color: var(--text-primary);
            position: relative;
        }
        .nav-desktop a:after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--primary-blue);
            transition: var(--transition);
        }
        .nav-desktop a:hover:after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--primary-blue);
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: white;
            padding: 20px;
            border-top: 1px solid var(--border-color);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
            font-weight: 600;
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-color);
            background-color: #fff;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary-blue);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            padding: 40px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        @media (max-width: 768px) {
            .article-content {
                padding: 25px;
            }
        }
        .article-header {
            margin-bottom: 30px;
            border-bottom: 2px solid var(--primary-red);
            padding-bottom: 20px;
        }
        h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            color: var(--primary-black);
            margin-bottom: 15px;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
            color: var(--text-secondary);
            font-size: 0.95rem;
        }
        .last-updated {
            background: var(--light-bg);
            padding: 5px 10px;
            border-radius: 4px;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary-blue);
            margin: 40px 0 20px;
            padding-top: 10px;
            border-top: 1px dashed var(--border-color);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--primary-green);
            margin: 30px 0 15px;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--primary-yellow);
            margin: 25px 0 12px;
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .intro {
            font-size: 1.2rem;
            font-weight: 500;
            color: var(--text-primary);
            background: linear-gradient(to right, #f8f9fa, #e9ecef);
            padding: 20px;
            border-left: 5px solid var(--primary-blue);
            border-radius: 0 var(--radius) var(--radius) 0;
            margin-bottom: 30px;
        }
        .highlight {
            background-color: #fff3cd;
            border-left: 4px solid #ffc107;
            padding: 15px;
            margin: 20px 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .card-image {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            display: block;
            margin: 25px auto;
            transition: var(--transition);
        }
        .card-image:hover {
            transform: scale(1.02);
        }
        .float-right {
            float: right;
            margin: 0 0 20px 30px;
            max-width: 300px;
        }
        @media (max-width: 768px) {
            .float-right {
                float: none;
                margin: 20px auto;
                display: block;
            }
        }
        .link-list {
            background: var(--light-bg);
            padding: 25px;
            border-radius: var(--radius);
            margin: 30px 0;
        }
        .link-list ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 10px;
            list-style: none;
        }
        .link-list li {
            padding: 8px 0;
            border-bottom: 1px dotted var(--border-color);
        }
        .link-list li:before {
            content: '🃏';
            margin-right: 10px;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        @media (max-width: 992px) {
            .sidebar {
                order: -1;
            }
        }
        .sidebar-widget {
            background: white;
            padding: 25px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .widget-title {
            font-size: 1.4rem;
            color: var(--primary-red);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-color);
        }
        .search-form {
            display: flex;
        }
        .search-input {
            flex-grow: 1;
            padding: 12px 15px;
            border: 2px solid var(--border-color);
            border-right: none;
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-input:focus {
            outline: none;
            border-color: var(--primary-blue);
        }
        .search-button {
            background: var(--primary-blue);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            transition: var(--transition);
            font-size: 1.1rem;
        }
        .search-button:hover {
            background: var(--primary-red);
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin: 15px 0;
            font-size: 1.8rem;
            color: #FFD700;
        }
        .star {
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover {
            transform: scale(1.2);
        }
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .rating-form select, .rating-form textarea, .comment-form input, .comment-form textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        .rating-form select:focus, .rating-form textarea:focus, .comment-form input:focus, .comment-form textarea:focus {
            outline: none;
            border-color: var(--primary-blue);
            box-shadow: 0 0 0 3px rgba(0,102,204,0.1);
        }
        .submit-btn {
            background: var(--primary-green);
            color: white;
            border: none;
            padding: 14px 20px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .submit-btn:hover {
            background: var(--primary-blue);
            transform: translateY(-2px);
        }
        .site-footer {
            background: var(--primary-black);
            color: white;
            padding: 50px 0 20px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            color: white;
            margin-bottom: 15px;
        }
        .footer-links h4 {
            color: white;
            font-size: 1.2rem;
            margin-bottom: 20px;
            border-bottom: 2px solid var(--primary-blue);
            padding-bottom: 10px;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #ccc;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            padding: 15px;
            border-radius: var(--radius);
            margin: 10px 0;
            border-left: 3px solid var(--primary-yellow);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #333;
            color: #999;
            font-size: 0.9rem;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .bold {
            font-weight: 700;
            color: var(--primary-red);
        }
        .clearfix::after {
            content: "";
            clear: both;
            display: table;
        }