:root {
            --primary: #2A5CAA;
            --secondary: #FF6B35;
            --dark: #1A1A2E;
            --light: #F8F9FA;
            --gray: #6C757D;
            --success: #28A745;
            --warning: #FFC107;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--light);
            color: #333;
            line-height: 1.6;
        }
        .site-header {
            background: linear-gradient(135deg, var(--dark) 0%, var(--primary) 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--secondary);
        }
        .my-logo span {
            background: linear-gradient(90deg, var(--secondary), #FFA500);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            padding: 0.5rem 0;
            position: relative;
            transition: all 0.3s ease;
        }
        .main-nav a:hover {
            color: var(--secondary);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--secondary);
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 1rem 0;
            border-bottom: 1px solid #dee2e6;
        }
        .breadcrumb-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .main-container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
        }
        article {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        h1 {
            color: var(--dark);
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 5px solid var(--secondary);
            padding-left: 1rem;
        }
        h2 {
            color: var(--primary);
            font-size: 1.8rem;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eee;
        }
        h3 {
            color: var(--dark);
            font-size: 1.4rem;
            margin: 2rem 0 1rem;
        }
        h4 {
            color: var(--gray);
            font-size: 1.1rem;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            color: var(--primary);
            font-weight: 500;
            background: #f0f7ff;
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 4px solid var(--secondary);
            margin-bottom: 2rem;
        }
        .highlight {
            background-color: #fff3cd;
            border-left: 4px solid var(--warning);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        strong {
            color: var(--primary);
            font-weight: 700;
        }
        .content-img {
            width: 100%;
            height: auto;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }
        .content-img:hover {
            transform: scale(1.01);
        }
        .content-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 2px dotted var(--primary);
            transition: all 0.2s ease;
        }
        .content-link:hover {
            color: var(--secondary);
            border-bottom-style: solid;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: white;
            border-radius: 12px;
            padding: 1.8rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .widget-title {
            color: var(--dark);
            font-size: 1.3rem;
            margin-bottom: 1.2rem;
            padding-bottom: 0.7rem;
            border-bottom: 2px solid var(--secondary);
        }
        .search-form {
            display: flex;
        }
        .search-input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 2px solid #ddd;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s;
        }
        .search-input:focus {
            border-color: var(--primary);
        }
        .search-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-btn:hover {
            background: #1d4a8a;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 0.3rem;
            margin: 1rem 0;
        }
        .star {
            color: #ddd;
            cursor: pointer;
            font-size: 1.8rem;
            transition: color 0.2s;
        }
        .star.active,
        .star:hover,
        .star:hover ~ .star {
            color: var(--warning);
        }
        .rating-btn {
            background: var(--success);
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            margin-top: 1rem;
            width: 100%;
            transition: background 0.3s;
        }
        .rating-btn:hover {
            background: #218838;
        }
        .comment-form textarea {
            width: 100%;
            padding: 1rem;
            border: 2px solid #ddd;
            border-radius: 8px;
            min-height: 120px;
            margin-bottom: 1rem;
            font-size: 1rem;
            resize: vertical;
        }
        .comment-submit {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
        }
        .comment-submit:hover {
            background: #1d4a8a;
        }
        .site-footer {
            background: var(--dark);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 1rem;
        }
        .footer-links h4 {
            color: white;
            margin-bottom: 1.2rem;
            font-size: 1.2rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            display: block;
            padding: 0.3rem 0;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: var(--secondary);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            padding: 1rem;
            border-radius: 8px;
            margin: 0.5rem 0;
            border-left: 3px solid var(--secondary);
        }
        friend-link a {
            color: #fff;
            text-decoration: none;
            font-weight: 500;
        }
        friend-link a:hover {
            color: var(--secondary);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-container {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                background: var(--dark);
                padding: 2rem;
                transition: left 0.3s ease;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            .main-nav.active {
                left: 0;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 1.5rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 576px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            article {
                padding: 1.5rem;
            }
            .widget {
                padding: 1.5rem;
            }
        }
        .update-time {
            color: var(--gray);
            font-size: 0.9rem;
            font-style: italic;
            margin-bottom: 2rem;
            display: block;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .section-divider {
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--primary), transparent);
            margin: 2.5rem 0;
        }
        .feature-list {
            list-style: none;
            margin: 1.5rem 0;
        }
        .feature-list li {
            padding: 0.5rem 0;
            padding-left: 2rem;
            position: relative;
        }
        .feature-list li:before {
            content: '✓';
            color: var(--success);
            font-weight: bold;
            position: absolute;
            left: 0;
        }