* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #e0e0e0;
            background: linear-gradient(135deg, #0c0c1d 0%, #1a1a2e 50%, #16213e 100%);
            background-attachment: fixed;
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #6ee7b7;
            text-decoration: none;
            transition: color 0.3s ease, text-shadow 0.3s ease;
        }
        a:hover {
            color: #34d399;
            text-shadow: 0 0 8px rgba(52, 211, 153, 0.5);
        }
        ul, ol {
            padding-left: 1.5rem;
            margin: 1rem 0;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .visually-hidden {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        .site-header {
            background: rgba(10, 10, 25, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid #2a2a5a;
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 1rem 0;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, #6ee7b7, #3b82f6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .my-logo:hover {
            transform: scale(1.02);
        }
        .my-logo i {
            font-size: 2.5rem;
            background: none;
            -webkit-text-fill-color: #6ee7b7;
        }
        .main-nav ul {
            display: flex;
            gap: 2rem;
            list-style: none;
            margin: 0;
        }
        .main-nav a {
            color: #cbd5e1;
            font-weight: 600;
            padding: 0.5rem 0.75rem;
            border-radius: 6px;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: rgba(59, 130, 246, 0.2);
            color: #60a5fa;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #cbd5e1;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #94a3b8;
            border-bottom: 1px solid #334155;
            margin-bottom: 2rem;
        }
        .breadcrumb a {
            color: #94a3b8;
        }
        .breadcrumb a:hover {
            color: #6ee7b7;
        }
        .breadcrumb span {
            margin: 0 0.5rem;
        }
        .search-widget {
            background: rgba(30, 41, 59, 0.7);
            border-radius: 12px;
            padding: 2rem;
            margin: 2.5rem 0;
            text-align: center;
            border: 1px solid #475569;
        }
        .search-widget h3 {
            color: #6ee7b7;
            margin-bottom: 1rem;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex: 1;
            padding: 0.9rem 1.2rem;
            border: 2px solid #3b82f6;
            border-radius: 8px 0 0 8px;
            background: #1e293b;
            color: #f1f5f9;
            font-size: 1rem;
        }
        .search-btn {
            background: linear-gradient(90deg, #3b82f6, #1d4ed8);
            color: white;
            border: none;
            border-radius: 0 8px 8px 0;
            padding: 0 1.8rem;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .search-btn:hover {
            background: linear-gradient(90deg, #1d4ed8, #1e40af);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0 4rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: rgba(15, 23, 42, 0.8);
            border-radius: 16px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
            border: 1px solid #374151;
        }
        .article-meta {
            color: #94a3b8;
            font-size: 0.9rem;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px dashed #475569;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
        }
        h1, h2, h3, h4 {
            color: #f8fafc;
            font-weight: 700;
            line-height: 1.3;
            margin-top: 2.5rem;
            margin-bottom: 1.2rem;
        }
        h1 {
            font-size: clamp(2.5rem, 5vw, 3.5rem);
            background: linear-gradient(90deg, #6ee7b7, #3b82f6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            border-bottom: 3px solid #3b82f6;
            padding-bottom: 1rem;
            margin-top: 0;
        }
        h2 {
            font-size: 2.2rem;
            color: #6ee7b7;
            padding-left: 0.75rem;
            border-left: 5px solid #3b82f6;
        }
        h3 {
            font-size: 1.8rem;
            color: #93c5fd;
        }
        h4 {
            font-size: 1.4rem;
            color: #c7d2fe;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        strong {
            color: #fbbf24;
            font-weight: 700;
        }
        .highlight-box {
            background: linear-gradient(135deg, rgba(30, 64, 175, 0.2), rgba(110, 231, 183, 0.1));
            border-left: 5px solid #3b82f6;
            padding: 1.5rem;
            border-radius: 0 10px 10px 0;
            margin: 2rem 0;
        }
        .tip {
            background: rgba(245, 158, 11, 0.1);
            border-left: 5px solid #f59e0b;
            padding: 1.5rem;
            border-radius: 0 10px 10px 0;
            margin: 2rem 0;
        }
        .tip h4 {
            color: #fbbf24;
            margin-top: 0;
        }
        .article-img {
            width: 100%;
            border-radius: 12px;
            margin: 2.5rem auto;
            border: 2px solid #475569;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
            overflow: hidden;
        }
        .article-img img {
            width: 100%;
            transition: transform 0.5s ease;
        }
        .article-img:hover img {
            transform: scale(1.03);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #94a3b8;
            margin-top: 0.75rem;
            font-size: 0.95rem;
        }
        .sidebar-widget {
            background: rgba(15, 23, 42, 0.8);
            border-radius: 12px;
            padding: 1.8rem;
            margin-bottom: 2rem;
            border: 1px solid #374151;
        }
        .sidebar-widget h3 {
            font-size: 1.5rem;
            color: #6ee7b7;
            margin-top: 0;
            padding-bottom: 0.75rem;
            border-bottom: 2px solid #3b82f6;
        }
        .related-links ul {
            list-style: none;
            padding-left: 0;
        }
        .related-links li {
            margin-bottom: 0.8rem;
            padding: 0.8rem;
            background: rgba(30, 41, 59, 0.5);
            border-radius: 6px;
            transition: background 0.3s;
        }
        .related-links li:hover {
            background: rgba(59, 130, 246, 0.2);
        }
        .related-links a {
            color: #cbd5e1;
            display: block;
        }
        .related-links a:hover {
            color: #60a5fa;
        }
        .rating-section, .comment-section {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid #374151;
        }
        .star-rating {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin: 1.5rem 0;
            flex-wrap: wrap;
        }
        .stars {
            display: flex;
            gap: 0.3rem;
        }
        .star {
            color: #4b5563;
            font-size: 1.8rem;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #fbbf24;
        }
        .rating-form, .comment-form {
            background: rgba(30, 41, 59, 0.7);
            padding: 1.8rem;
            border-radius: 10px;
            margin-top: 1.5rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            color: #cbd5e1;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.9rem;
            border: 1px solid #475569;
            border-radius: 6px;
            background: #1e293b;
            color: #f1f5f9;
            font-size: 1rem;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #3b82f6;
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
        }
        .submit-btn {
            background: linear-gradient(90deg, #10b981, #059669);
            color: white;
            border: none;
            border-radius: 8px;
            padding: 1rem 2rem;
            font-weight: 700;
            cursor: pointer;
            transition: background 0.3s;
        }
        .submit-btn:hover {
            background: linear-gradient(90deg, #059669, #047857);
        }
        .site-footer {
            background: rgba(10, 10, 25, 0.98);
            border-top: 2px solid #2a2a5a;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #6ee7b7;
            margin-bottom: 1rem;
        }
        .footer-links h4 {
            color: #6ee7b7;
            font-size: 1.3rem;
            margin-bottom: 1.2rem;
        }
        .footer-links ul {
            list-style: none;
            padding-left: 0;
        }
        .footer-links li {
            margin-bottom: 0.7rem;
        }
        friend-link {
            display: block;
            padding: 0.5rem 0;
            color: #94a3b8;
            border-bottom: 1px dotted #374151;
        }
        friend-link a {
            color: #94a3b8;
        }
        friend-link a:hover {
            color: #6ee7b7;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #374151;
            color: #94a3b8;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(10, 10, 25, 0.98);
                padding: 1rem;
                border-top: 2px solid #2a2a5a;
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
            }
            .main-nav.active ul {
                display: flex;
            }
            .main-nav a {
                display: block;
                padding: 1rem;
                border-radius: 6px;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .search-form {
                flex-direction: column;
            }
            .search-input, .search-btn {
                border-radius: 8px;
                width: 100%;
            }
            .search-btn {
                margin-top: 0.75rem;
                padding: 0.9rem;
            }
            article, .sidebar-widget {
                padding: 1.5rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        article, .sidebar-widget {
            animation: fadeIn 0.6s ease-out;
        }
        .pulse {
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.7); }
            70% { box-shadow: 0 0 0 10px rgba(59, 130, 246, 0); }
            100% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0); }
        }