* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            color: #333;
            line-height: 1.7;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 15px;
        }
        a {
            color: #2c5aa0;
            text-decoration: none;
            transition: color 0.3s;
        }
        a:hover {
            color: #e63946;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
        }
        .container {
            width: 100%;
            padding-right: 15px;
            padding-left: 15px;
            margin-right: auto;
            margin-left: auto;
        }
        header {
            background: linear-gradient(90deg, #1e3c72 0%, #2a5298 100%);
            color: white;
            padding: 1rem 0;
            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;
            flex-wrap: wrap;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 900;
            letter-spacing: 1px;
            background: linear-gradient(to right, #ff7e5f, #feb47b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        .logo a {
            background: none;
            -webkit-text-fill-color: initial;
            color: inherit;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
            font-size: 1.05rem;
        }
        nav a:hover {
            background: rgba(255,255,255,0.15);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.95rem;
            color: #666;
            background: #f8f9fa;
            border-radius: 0 0 8px 8px;
            margin-bottom: 1.5rem;
        }
        .breadcrumb a {
            color: #555;
        }
        .breadcrumb i {
            margin: 0 8px;
            color: #888;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .content {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
        }
        .sidebar {
            background: white;
            padding: 1.8rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 {
            color: #1e3c72;
            border-bottom: 3px solid #ff7e5f;
            padding-bottom: 0.7rem;
            margin-bottom: 1.5rem;
            font-size: 1.4rem;
        }
        .search-box {
            margin-bottom: 2rem;
            position: relative;
        }
        .search-box input {
            width: 100%;
            padding: 14px 20px;
            border: 2px solid #ddd;
            border-radius: 50px;
            font-size: 1rem;
            transition: all 0.3s;
        }
        .search-box input:focus {
            outline: none;
            border-color: #2a5298;
            box-shadow: 0 0 0 3px rgba(42, 82, 152, 0.2);
        }
        .search-box button {
            position: absolute;
            right: 8px;
            top: 8px;
            background: #2a5298;
            color: white;
            border: none;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-box button:hover {
            background: #1e3c72;
        }
        h1 {
            font-size: 2.8rem;
            color: #1e3c72;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 6px solid #ff7e5f;
            padding-left: 1rem;
        }
        h2 {
            font-size: 2rem;
            color: #2a5298;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #ddd;
        }
        h3 {
            font-size: 1.6rem;
            color: #333;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #555;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            color: #444;
            font-weight: 500;
            background: #f0f7ff;
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 4px solid #2a5298;
            margin-bottom: 2rem;
        }
        .highlight {
            background: linear-gradient(120deg, #ffecd2 0%, #fcb69f 100%);
            padding: 1.8rem;
            border-radius: 10px;
            margin: 2rem 0;
            border: 1px solid #ffb8a4;
            box-shadow: 0 4px 8px rgba(255, 126, 95, 0.15);
        }
        .highlight h4 {
            color: #b33c22;
            margin-top: 0;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.8rem;
        }
        .strategy-list {
            background: #f9f9f9;
            padding: 1.8rem 2rem;
            border-radius: 10px;
            border: 1px solid #e1e1e1;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
            border-radius: 8px;
            overflow: hidden;
        }
        th, td {
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid #e1e1e1;
        }
        th {
            background: #2a5298;
            color: white;
            font-weight: 600;
        }
        tr:nth-child(even) {
            background: #f8fafc;
        }
        tr:hover {
            background: #e3f2fd;
        }
        .featured-image {
            margin: 2.5rem 0;
            text-align: center;
        }
        .featured-image figcaption {
            font-style: italic;
            color: #666;
            margin-top: 0.8rem;
            font-size: 0.95rem;
        }
        .interactive-box {
            background: white;
            border: 2px solid #e1e1e1;
            border-radius: 10px;
            padding: 2rem;
            margin: 2.5rem 0;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .interactive-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        .interactive-box h3 {
            color: #1e3c72;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .rating {
            margin: 2rem 0;
            text-align: center;
            padding: 1.5rem;
            background: #f8f9fa;
            border-radius: 10px;
        }
        .stars {
            font-size: 2.2rem;
            color: #ffc107;
            margin: 1rem 0;
            cursor: pointer;
        }
        .stars i {
            margin: 0 3px;
            transition: transform 0.2s;
        }
        .stars i:hover {
            transform: scale(1.3);
        }
        .rating button {
            background: #28a745;
            color: white;
            border: none;
            padding: 12px 28px;
            border-radius: 50px;
            font-size: 1.1rem;
            cursor: pointer;
            margin-top: 1rem;
            transition: background 0.3s;
        }
        .rating button:hover {
            background: #218838;
        }
        .comments {
            margin: 3rem 0;
        }
        .comment-form textarea {
            width: 100%;
            padding: 1rem;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            margin-bottom: 1rem;
            min-height: 150px;
            resize: vertical;
        }
        .comment-form input {
            padding: 12px 20px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            margin-bottom: 1rem;
            width: 100%;
        }
        .comment-form button {
            background: #2a5298;
            color: white;
            border: none;
            padding: 14px 30px;
            border-radius: 8px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.3s;
        }
        .comment-form button:hover {
            background: #1e3c72;
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 1.5rem;
            margin: 3rem 0;
            padding: 2rem;
            background: #f1f8ff;
            border-radius: 12px;
        }
        @media (max-width: 768px) {
            .web-links {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        .web-link {
            background: white;
            padding: 1.2rem;
            border-radius: 8px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.05);
            transition: transform 0.3s;
            text-align: center;
        }
        .web-link:hover {
            transform: translateY(-5px);
        }
        .web-link a {
            color: #1e3c72;
            font-weight: 600;
            font-size: 1rem;
        }
        footer {
            background: #1a1a2e;
            color: #ddd;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
            border-radius: 12px 12px 0 0;
        }
        .footer-container {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 2rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid #333;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h4 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links a {
            color: #aaa;
            display: block;
            margin-bottom: 0.8rem;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: #ff7e5f;
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            color: #aaa;
            font-size: 0.95rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1e3c72;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                border-radius: 0 0 12px 12px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.2);
            }
            nav.active ul {
                display: flex;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .content, .sidebar {
                padding: 1.5rem;
            }
            .web-links {
                grid-template-columns: 1fr;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .content > * {
            animation: fadeIn 0.6s ease-out;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .bold {
            font-weight: 800;
            color: #1e3c72;
        }
        .note {
            background: #e8f4fd;
            border-left: 4px solid #2196f3;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .tip {
            background: #f0ffe8;
            border-left: 4px solid #4caf50;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .warning {
            background: #fff8e8;
            border-left: 4px solid #ff9800;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .quote {
            font-style: italic;
            color: #555;
            border-left: 4px solid #ff7e5f;
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-size: 1.2rem;
        }
        .author {
            text-align: right;
            font-weight: bold;
            color: #333;
            margin-top: 0.5rem;
        }