* {
            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, #0c2461 0%, #1e3799 50%, #4a69bd 100%);
            color: #333;
            line-height: 1.8;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #1e3799;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        a:hover {
            color: #e55039;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 2.5rem;
            font-weight: 900;
            color: #e55039;
            text-transform: uppercase;
            letter-spacing: -1px;
            display: flex;
            align-items: center;
        }
        .my-logo i {
            color: #4a69bd;
            margin-right: 10px;
        }
        .my-logo:hover {
            color: #4a69bd;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
        }
        .main-nav li {
            margin-left: 30px;
        }
        .main-nav a {
            font-weight: 600;
            color: #0c2461;
            padding: 8px 5px;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover {
            border-color: #e55039;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #0c2461;
            cursor: pointer;
        }
        .breadcrumb {
            background: rgba(255, 255, 255, 0.85);
            padding: 12px 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #ddd;
        }
        .breadcrumb a {
            color: #666;
        }
        .breadcrumb span {
            color: #e55039;
            font-weight: 600;
        }
        .main-content {
            flex: 1;
            background: #fff;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
            margin: 30px auto;
            padding: 40px;
            overflow: hidden;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        article {
            grid-column: 1;
        }
        aside {
            grid-column: 2;
        }
        h1, h2, h3, h4 {
            color: #0c2461;
            margin-top: 1.8em;
            margin-bottom: 0.7em;
            line-height: 1.3;
        }
        h1 {
            font-size: 3rem;
            border-bottom: 5px solid #e55039;
            padding-bottom: 15px;
            margin-top: 0;
        }
        h2 {
            font-size: 2.2rem;
            border-left: 6px solid #4a69bd;
            padding-left: 15px;
        }
        h3 {
            font-size: 1.8rem;
            color: #1e3799;
        }
        h4 {
            font-size: 1.4rem;
            color: #4a69bd;
        }
        p {
            margin-bottom: 1.5em;
            text-align: justify;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            color: #555;
            font-weight: 500;
            background: #f8f9fa;
            padding: 20px;
            border-radius: 8px;
            border-left: 5px solid #e55039;
        }
        strong {
            color: #0c2461;
            font-weight: 700;
        }
        em {
            color: #e55039;
            font-style: italic;
        }
        .highlight-box {
            background: linear-gradient(to right, #f8f9fa, #e9ecef);
            border: 2px dashed #4a69bd;
            padding: 25px;
            border-radius: 10px;
            margin: 25px 0;
        }
        .quote {
            font-style: italic;
            font-size: 1.2rem;
            color: #555;
            border-left: 5px solid #e55039;
            padding-left: 25px;
            margin: 30px 0;
        }
        .author {
            text-align: right;
            font-weight: bold;
            color: #333;
        }
        .img-container {
            margin: 30px auto;
            text-align: center;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
            max-width: 800px;
        }
        .img-container img {
            width: 100%;
            transition: transform 0.5s ease;
        }
        .img-container img:hover {
            transform: scale(1.02);
        }
        .img-caption {
            font-size: 0.95rem;
            color: #666;
            padding: 10px;
            background: #f8f9fa;
        }
        .link-list {
            columns: 2;
            column-gap: 40px;
            margin: 25px 0;
        }
        .link-list li {
            margin-bottom: 10px;
            list-style-type: square;
            list-style-position: inside;
            color: #4a69bd;
        }
        .module {
            background: #f8f9fa;
            border-radius: 10px;
            padding: 25px;
            margin-bottom: 30px;
            border: 1px solid #dee2e6;
        }
        .module h3 {
            margin-top: 0;
            color: #0c2461;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .module h3 i {
            color: #e55039;
        }
        form label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #333;
        }
        form input,
        form textarea,
        form select {
            width: 100%;
            padding: 12px 15px;
            margin-bottom: 20px;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        form input:focus,
        form textarea:focus {
            border-color: #4a69bd;
            outline: none;
            box-shadow: 0 0 5px rgba(74, 105, 189, 0.5);
        }
        button,
        .btn {
            background: linear-gradient(to right, #e55039, #eb6442);
            color: white;
            border: none;
            padding: 14px 25px;
            border-radius: 6px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }
        button:hover,
        .btn:hover {
            background: linear-gradient(to right, #d44030, #e55039);
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(229, 80, 57, 0.3);
        }
        .rating {
            display: flex;
            gap: 10px;
            margin-bottom: 20px;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            margin: 0;
        }
        .rating input:checked ~ label,
        .rating label:hover,
        .rating label:hover ~ label {
            color: #ffc107;
        }
        aside .module {
            background: #fff;
            border: 2px solid #e9ecef;
        }
        .update-time {
            font-size: 0.9rem;
            color: #666;
            text-align: center;
            padding: 10px;
            background: #f8f9fa;
            border-radius: 6px;
            margin-top: 20px;
        }
        .update-time i {
            color: #e55039;
            margin-right: 8px;
        }
        site-footer {
            background: #0c2461;
            color: #fff;
            padding: 50px 0 20px;
            margin-top: auto;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 900;
            color: #fff;
            margin-bottom: 20px;
        }
        .footer-links h4 {
            color: #fff;
            border-bottom: 2px solid #4a69bd;
            padding-bottom: 10px;
            margin-bottom: 20px;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #ccc;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-links a:hover {
            color: #e55039;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.1);
            padding: 15px;
            border-radius: 6px;
            margin-bottom: 15px;
            border-left: 4px solid #e55039;
        }
        friend-link a {
            color: #fff;
            font-weight: 600;
        }
        friend-link a:hover {
            color: #ffc107;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            margin-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.2);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            aside {
                grid-column: 1;
            }
            .footer-container {
                grid-template-columns: repeat(2, 1fr);
            }
            h1 {
                font-size: 2.5rem;
            }
            h2 {
                font-size: 2rem;
            }
            .link-list {
                columns: 1;
            }
        }
        @media (max-width: 768px) {
            .main-nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(255, 255, 255, 0.98);
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
                padding: 20px;
                z-index: 999;
            }
            .main-nav.active ul {
                display: flex;
            }
            .main-nav li {
                margin: 10px 0;
                margin-left: 0;
            }
            .hamburger {
                display: block;
            }
            .main-content {
                padding: 25px;
                margin: 15px;
            }
            .footer-container {
                grid-template-columns: 1fr;
            }
        }