* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #2a4365;
            --secondary: #c53030;
            --accent: #ecc94b;
            --light: #f7fafc;
            --dark: #1a202c;
            --gray: #718096;
            --transition: all 0.3s ease;
        }
        body {
            background-color: #f5f7fa;
            color: var(--dark);
            line-height: 1.7;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--primary);
            color: white;
            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;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 2px;
        }
        .my-logo span {
            color: white;
        }
        .search-box {
            display: flex;
            background: white;
            border-radius: 50px;
            overflow: hidden;
            width: 300px;
        }
        .search-box input {
            flex: 1;
            border: none;
            padding: 12px 20px;
            font-size: 1rem;
            outline: none;
        }
        .search-box button {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 0 25px;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-box button:hover {
            background: #9b2c2c;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            background: none;
            border: none;
            color: white;
        }
        nav ul {
            display: flex;
            list-style: none;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 8px;
            padding: 5px;
        }
        nav li {
            margin: 0 5px;
        }
        nav a {
            color: white;
            padding: 10px 20px;
            border-radius: 6px;
            display: block;
            font-weight: 500;
        }
        nav a:hover, nav a.active {
            background: var(--secondary);
            color: white;
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: #cbd5e0;
        }
        .breadcrumb a {
            color: var(--accent);
        }
        .breadcrumb i {
            margin: 0 8px;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        main {
            background: white;
            border-radius: 12px;
            padding: 40px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
        }
        aside {
            background: white;
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
            align-self: start;
            position: sticky;
            top: 140px;
        }
        h1 {
            color: var(--primary);
            font-size: 2.8rem;
            margin-bottom: 20px;
            line-height: 1.2;
            border-bottom: 3px solid var(--accent);
            padding-bottom: 15px;
        }
        h2 {
            color: var(--primary);
            font-size: 2rem;
            margin: 35px 0 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid #e2e8f0;
        }
        h3 {
            color: var(--secondary);
            font-size: 1.6rem;
            margin: 30px 0 15px;
        }
        h4 {
            color: var(--dark);
            font-size: 1.3rem;
            margin: 25px 0 10px;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: #edf2f7;
            padding: 15px 20px;
            border-radius: 8px;
            margin: 25px 0;
            font-size: 0.95rem;
        }
        .update-time {
            color: var(--secondary);
            font-weight: 600;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.05rem;
        }
        .lead {
            font-size: 1.2rem;
            color: var(--primary);
            font-weight: 600;
            padding: 15px;
            background: #f0fff4;
            border-left: 4px solid var(--secondary);
            border-radius: 4px;
        }
        .highlight {
            background: linear-gradient(120deg, var(--accent) 0%, var(--accent) 100%);
            background-repeat: no-repeat;
            background-size: 100% 0.4em;
            background-position: 0 88%;
            font-weight: 700;
        }
        .feature-img {
            border-radius: 12px;
            overflow: hidden;
            margin: 30px 0;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
            position: relative;
        }
        .feature-img img {
            width: 100%;
            height: 400px;
            object-fit: cover;
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            padding: 10px;
            font-size: 0.9rem;
            background: #f7fafc;
        }
        .info-box {
            background: #ebf8ff;
            border-left: 5px solid #4299e1;
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 8px 8px 0;
        }
        .info-box h4 {
            color: #2b6cb0;
            margin-top: 0;
        }
        .strategy-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 25px;
            margin: 30px 0;
        }
        .strategy-card {
            background: var(--light);
            padding: 25px;
            border-radius: 10px;
            border-top: 5px solid var(--secondary);
            transition: var(--transition);
        }
        .strategy-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 20px rgba(0, 0, 0, 0.08);
        }
        .strategy-card i {
            font-size: 2rem;
            color: var(--secondary);
            margin-bottom: 15px;
        }
        ul, ol {
            margin-left: 25px;
            margin-bottom: 25px;
        }
        li {
            margin-bottom: 10px;
        }
        .related-links {
            background: #fffaf0;
            padding: 25px;
            border-radius: 10px;
            margin: 35px 0;
        }
        .related-links h4 {
            color: #dd6b20;
        }
        .related-links ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 10px;
            list-style: none;
            margin-left: 0;
        }
        .related-links li {
            margin-bottom: 8px;
        }
        .related-links a {
            display: block;
            padding: 10px 15px;
            background: white;
            border-radius: 6px;
            border: 1px solid #fed7aa;
            transition: var(--transition);
        }
        .related-links a:hover {
            background: var(--accent);
            border-color: var(--accent);
        }
        .sidebar-widget {
            margin-bottom: 35px;
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
        }
        .rating-widget {
            text-align: center;
            background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
            padding: 25px;
            border-radius: 10px;
        }
        .stars {
            font-size: 2rem;
            color: #ecc94b;
            margin: 15px 0;
        }
        .stars i {
            cursor: pointer;
            margin: 0 3px;
            transition: var(--transition);
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .rating-widget button {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            width: 100%;
            margin-top: 15px;
            transition: var(--transition);
        }
        .rating-widget button:hover {
            background: #9b2c2c;
            transform: translateY(-3px);
        }
        .comment-form textarea {
            width: 100%;
            padding: 15px;
            border: 1px solid #cbd5e0;
            border-radius: 8px;
            margin-bottom: 15px;
            font-family: inherit;
            resize: vertical;
            min-height: 120px;
        }
        .comment-form button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 8px;
            cursor: pointer;
            transition: var(--transition);
        }
        .comment-form button:hover {
            background: #1a365d;
        }
        .popular-links li {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px solid #e2e8f0;
        }
        .popular-links a {
            display: flex;
            align-items: center;
        }
        .popular-links i {
            color: var(--secondary);
            margin-right: 10px;
        }
        footer {
            background: var(--dark);
            color: #cbd5e0;
            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: var(--accent);
            margin-bottom: 20px;
        }
        .friend-links {
            background: rgba(255, 255, 255, 0.05);
            padding: 25px;
            border-radius: 8px;
            margin: 30px 0;
        }
        .friend-links h4 {
            color: var(--accent);
            margin-bottom: 15px;
        }
        .friend-links a {
            color: #90cdf4;
            display: inline-block;
            margin-right: 15px;
            margin-bottom: 10px;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #4a5568;
            font-size: 0.9rem;
            color: #a0aec0;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .search-box {
                order: 3;
                width: 100%;
                margin-top: 15px;
            }
            .hamburger {
                display: block;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 15px;
                background: rgba(0, 0, 0, 0.9);
                position: absolute;
                top: 100%;
                left: 0;
                border-radius: 0;
                padding: 20px;
            }
            nav.active ul {
                display: flex;
            }
            nav li {
                margin: 5px 0;
            }
            main, aside {
                padding: 25px;
            }
            .feature-img img {
                height: 250px;
            }
        }