* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #0f1419;
            color: #e1e7ef;
            line-height: 1.7;
            max-width: 100%;
            overflow-x: hidden;
        }
        a {
            color: #4da6ff;
            text-decoration: none;
            transition: color 0.3s ease, text-shadow 0.3s ease;
        }
        a:hover {
            color: #80c1ff;
            text-shadow: 0 0 8px rgba(77, 166, 255, 0.5);
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #1a1f2e 0%, #0c111b 100%);
            border-bottom: 2px solid #2a3a5a;
            padding: 1.2rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(90deg, #ff6b6b, #4ecdc4);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-transform: uppercase;
            letter-spacing: 2px;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
        }
        .my-logo:hover {
            transform: scale(1.03);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #b8c2cc;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 6px;
            font-size: 1.05rem;
        }
        .main-nav a:hover, .main-nav a.active {
            background-color: rgba(77, 166, 255, 0.15);
            color: #4da6ff;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #4da6ff;
            background: none;
            border: none;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.95rem;
            color: #8899aa;
            background-color: #151b26;
            margin-bottom: 2rem;
        }
        .breadcrumb a {
            color: #a3b8cc;
        }
        .breadcrumb span {
            margin: 0 0.5rem;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-area {
            background: linear-gradient(145deg, #1c222e, #161b26);
            border-radius: 16px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
            border: 1px solid #2a3446;
        }
        .sidebar {
            background: #151b26;
            border-radius: 12px;
            padding: 1.8rem;
            border: 1px solid #2a3a5a;
            height: fit-content;
            position: sticky;
            top: 120px;
        }
        h1 {
            font-size: 2.8rem;
            color: #ffffff;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            text-shadow: 0 2px 10px rgba(0,0,0,0.7);
            border-left: 6px solid #ff6b6b;
            padding-left: 1.5rem;
        }
        h2 {
            font-size: 2rem;
            color: #4ecdc4;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.7rem;
            border-bottom: 2px solid #3a4a6a;
        }
        h3 {
            font-size: 1.6rem;
            color: #ffd166;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #a3b8cc;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            color: #c2d1e0;
            font-weight: 300;
            margin-bottom: 2.5rem;
            padding: 1.5rem;
            background: rgba(42, 58, 90, 0.3);
            border-radius: 10px;
            border-left: 4px solid #4da6ff;
        }
        .highlight {
            background-color: rgba(255, 215, 102, 0.15);
            padding: 1.5rem;
            border-radius: 10px;
            border-left: 5px solid #ffd166;
            margin: 2rem 0;
        }
        .quote {
            font-style: italic;
            color: #b8c2cc;
            border-left: 4px solid #4ecdc4;
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-size: 1.2rem;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.7rem;
        }
        .internal-links {
            background: rgba(42, 58, 90, 0.5);
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2.5rem 0;
        }
        .internal-links h3 {
            margin-top: 0;
            color: #80c1ff;
        }
        .module {
            background: rgba(30, 40, 60, 0.7);
            border-radius: 12px;
            padding: 1.8rem;
            margin-bottom: 2rem;
            border: 1px solid #3a4a6a;
        }
        .module-title {
            color: #4ecdc4;
            margin-bottom: 1.2rem;
            font-size: 1.4rem;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.9rem 1.2rem;
            margin-bottom: 1.2rem;
            border-radius: 8px;
            border: 1px solid #3a4a6a;
            background-color: #1a2230;
            color: #e1e7ef;
            font-size: 1rem;
            transition: all 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #4da6ff;
            box-shadow: 0 0 0 3px rgba(77, 166, 255, 0.2);
        }
        button {
            background: linear-gradient(90deg, #4da6ff, #2a8cff);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 8px;
            font-weight: bold;
            font-size: 1.05rem;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.7rem;
        }
        button:hover {
            background: linear-gradient(90deg, #2a8cff, #4da6ff);
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(42, 140, 255, 0.4);
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1.5rem;
            justify-content: center;
        }
        .stars i {
            font-size: 2rem;
            color: #444;
            cursor: pointer;
            transition: color 0.2s;
        }
        .stars i.active {
            color: #ffd700;
        }
        .featured-img {
            margin: 2.5rem 0;
            text-align: center;
        }
        .featured-img img {
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
            border: 2px solid #3a4a6a;
            transition: transform 0.5s ease, box-shadow 0.5s ease;
        }
        .featured-img img:hover {
            transform: scale(1.02);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.8);
        }
        .img-caption {
            font-style: italic;
            color: #8899aa;
            margin-top: 0.8rem;
            font-size: 0.95rem;
        }
        .site-footer {
            background: #0c111b;
            border-top: 2px solid #2a3a5a;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h3 {
            color: #4ecdc4;
            margin-bottom: 1.5rem;
            font-size: 1.4rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
            padding: 0.5rem 0;
            border-bottom: 1px dashed #2a3a5a;
        }
        friend-link a {
            color: #a3b8cc;
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }
        friend-link a:hover {
            color: #4da6ff;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2a3a5a;
            color: #8899aa;
            font-size: 0.95rem;
        }
        .update-time {
            color: #ff6b6b;
            font-weight: bold;
            background: rgba(255, 107, 107, 0.1);
            padding: 0.5rem 1rem;
            border-radius: 6px;
            display: inline-block;
            margin: 1rem 0;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
            }
            .main-nav.active {
                max-height: 500px;
                margin-top: 1.5rem;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                width: 100%;
            }
            .main-nav a {
                display: block;
                padding: 1rem;
                border-bottom: 1px solid #2a3a5a;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .article-area {
                padding: 1.8rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .article-area {
            animation: fadeIn 0.8s ease-out;
        }