* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #0a0e17;
            color: #e0e0e0;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: #4dabf7;
            text-decoration: none;
            transition: color 0.3s ease, transform 0.2s ease;
        }
        a:hover {
            color: #74c0fc;
            transform: translateY(-2px);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
        }
        @media (min-width: 992px) {
            .main-grid {
                grid-template-columns: 3fr 1fr;
            }
        }
        .site-header {
            background: linear-gradient(135deg, #1a2332 0%, #0a0e17 100%);
            padding: 1.5rem 0;
            border-bottom: 3px solid #339af0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-family: 'Arial Black', 'Arial Bold', sans-serif;
            font-size: 2.2rem;
            background: linear-gradient(90deg, #339af0, #22b8cf);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            text-shadow: 0 2px 5px rgba(0,0,0,0.3);
        }
        .my-logo:hover {
            animation: logo-pulse 0.5s ease;
        }
        @keyframes logo-pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }
        .main-nav {
            display: flex;
            align-items: center;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        .nav-list a {
            color: #c5c7d0;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .nav-list a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #339af0;
            transition: width 0.3s ease;
        }
        .nav-list a:hover::after,
        .nav-list a.active::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        .breadcrumb {
            background-color: #141b2d;
            padding: 1rem 0;
            margin-bottom: 2rem;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: #5c7cfa;
        }
        .search-container {
            margin: 2rem 0;
            padding: 1.5rem;
            background: linear-gradient(90deg, #1c7ed6, #364fc7);
            border-radius: 12px;
            text-align: center;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.9rem 1.2rem;
            border: none;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
            background: #f8f9fa;
        }
        .search-btn {
            background-color: #212529;
            color: white;
            border: none;
            padding: 0 1.8rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.3s;
        }
        .search-btn:hover {
            background-color: #495057;
        }
        .main-article {
            background-color: #141b2d;
            border-radius: 16px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
            margin-bottom: 3rem;
        }
        .article-header {
            text-align: center;
            margin-bottom: 3rem;
            border-bottom: 2px dashed #339af0;
            padding-bottom: 2rem;
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: #4dabf7;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 2rem;
            color: #adb5bd;
            font-size: 0.9rem;
            flex-wrap: wrap;
        }
        .article-meta i {
            margin-right: 0.5rem;
            color: #339af0;
        }
        .content-section {
            margin-bottom: 3.5rem;
        }
        h2 {
            color: #74c0fc;
            font-size: 2rem;
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.7rem;
            border-bottom: 1px solid #2d3748;
        }
        h3 {
            color: #a5d8ff;
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
        }
        h4 {
            color: #d0ebff;
            font-size: 1.3rem;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.05rem;
        }
        .highlight {
            background: linear-gradient(90deg, rgba(51, 154, 240, 0.2), transparent);
            border-left: 4px solid #339af0;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: #adb5bd;
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.7rem;
        }
        .emph {
            font-weight: bold;
            color: #ffd43b;
        }
        .updated-time {
            display: inline-block;
            background-color: #2b8a3e;
            color: white;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-size: 0.85rem;
            margin-top: 1rem;
        }
        .sidebar {
            background-color: #141b2d;
            border-radius: 16px;
            padding: 2rem;
            align-self: start;
            position: sticky;
            top: 120px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.3);
        }
        .widget {
            margin-bottom: 2.5rem;
        }
        .widget-title {
            color: #74c0fc;
            font-size: 1.4rem;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #339af0;
        }
        .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        label {
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #c5c7d0;
        }
        input, textarea, select {
            padding: 0.8rem;
            border-radius: 8px;
            border: 1px solid #2d3748;
            background-color: #1e2a47;
            color: #e0e0e0;
            font-size: 1rem;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #339af0;
            box-shadow: 0 0 0 3px rgba(51, 154, 240, 0.3);
        }
        .submit-btn {
            background: linear-gradient(90deg, #339af0, #228be6);
            color: white;
            border: none;
            padding: 1rem;
            border-radius: 8px;
            font-weight: bold;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(51, 154, 240, 0.4);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            font-size: 1.8rem;
            gap: 0.2rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #495057;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: #ffd43b;
        }
        .site-footer {
            background-color: #0c111f;
            padding: 3rem 0 2rem;
            margin-top: 4rem;
            border-top: 3px solid #339af0;
        }
        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 2rem;
        }
        friend-link {
            display: block;
            margin-bottom: 1rem;
            font-size: 1.1rem;
        }
        .copyright {
            color: #868e96;
            font-size: 0.9rem;
            border-top: 1px solid #2d3748;
            padding-top: 2rem;
            width: 100%;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                align-items: flex-start;
                gap: 1rem;
            }
            .main-nav {
                width: 100%;
                justify-content: space-between;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: #1a2332;
                padding: 1rem;
                border-radius: 8px;
                margin-top: 1rem;
            }
            .nav-list.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            .main-article {
                padding: 1.5rem;
            }
            .sidebar {
                position: static;
                top: unset;
            }
        }