:root {
            --primary: #FF6B00;
            --secondary: #1A237E;
            --dark: #121212;
            --light: #F5F5F5;
            --gray: #2D2D2D;
            --success: #4CAF50;
            --warning: #FFC107;
            --danger: #F44336;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            --border-radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #e0e0e0;
            background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
            background-attachment: fixed;
            max-width: 100%;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: rgba(18, 18, 18, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid var(--primary);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo span {
            color: var(--primary);
            text-shadow: 0 0 10px rgba(255, 107, 0, 0.5);
        }
        .logo i {
            font-size: 2rem;
        }
        nav {
            display: flex;
            gap: 30px;
        }
        .nav-link {
            color: #ccc;
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            padding: 8px 12px;
            border-radius: var(--border-radius);
            transition: var(--transition);
            position: relative;
        }
        .nav-link:hover, .nav-link.active {
            color: white;
            background: rgba(255, 107, 0, 0.1);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition);
        }
        .nav-link:hover::after {
            width: 80%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background: white;
            border-radius: 2px;
            transition: var(--transition);
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: #aaa;
            background: rgba(30, 30, 30, 0.7);
            margin-bottom: 30px;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-container {
            max-width: 600px;
            margin: 40px auto;
            padding: 0 20px;
        }
        .search-box {
            display: flex;
            background: rgba(40, 40, 40, 0.8);
            border-radius: 50px;
            overflow: hidden;
            border: 2px solid var(--gray);
            transition: var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 15px rgba(255, 107, 0, 0.3);
        }
        .search-box input {
            flex: 1;
            padding: 16px 25px;
            background: transparent;
            border: none;
            color: white;
            font-size: 1rem;
        }
        .search-box input:focus {
            outline: none;
        }
        .search-box button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 30px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-box button:hover {
            background: #ff8b00;
        }
        main {
            padding: 30px 0;
        }
        article {
            background: rgba(25, 25, 25, 0.8);
            border-radius: var(--border-radius);
            padding: 40px;
            margin-bottom: 40px;
            box-shadow: var(--shadow);
            border: 1px solid rgba(255, 107, 0, 0.1);
        }
        h1 {
            color: white;
            font-size: 2.8rem;
            margin-bottom: 25px;
            line-height: 1.2;
            text-align: center;
            background: linear-gradient(90deg, #FF6B00, #FF8E53);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        h2 {
            color: var(--primary);
            font-size: 2rem;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid rgba(255, 107, 0, 0.3);
        }
        h3 {
            color: #FF8E53;
            font-size: 1.6rem;
            margin: 30px 0 15px;
        }
        h4 {
            color: #FFAB91;
            font-size: 1.3rem;
            margin: 25px 0 12px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background: linear-gradient(90deg, rgba(255,107,0,0.1), rgba(255,142,83,0.05));
            border-left: 4px solid var(--primary);
            padding: 20px;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            margin: 25px 0;
        }
        .pro-tip {
            background: rgba(33,150,243,0.1);
            border-left: 4px solid #2196F3;
            padding: 15px;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            margin: 20px 0;
        }
        .pro-tip::before {
            content: "💡 PRO TIP: ";
            font-weight: bold;
            color: #2196F3;
        }
        .emphasis {
            color: #FFD54F;
            font-weight: 600;
        }
        .content-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: var(--border-radius);
            margin: 30px auto;
            display: block;
            box-shadow: var(--shadow);
            border: 2px solid var(--gray);
            transition: var(--transition);
        }
        .content-img:hover {
            transform: scale(1.01);
            border-color: var(--primary);
        }
        .internal-link {
            color: #4FC3F7;
            text-decoration: none;
            font-weight: 600;
            border-bottom: 1px dashed #4FC3F7;
            transition: var(--transition);
        }
        .internal-link:hover {
            color: #29B6F6;
            border-bottom-style: solid;
        }
        .rating-section {
            background: rgba(40, 40, 40, 0.8);
            padding: 30px;
            border-radius: var(--border-radius);
            margin: 40px 0;
            text-align: center;
        }
        .rating-title {
            color: white;
            font-size: 1.5rem;
            margin-bottom: 20px;
        }
        .star-rating {
            direction: rtl;
            display: inline-block;
            margin-bottom: 20px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #444;
            cursor: pointer;
            transition: var(--transition);
            padding: 0 5px;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: #FFD700;
        }
        .rating-form textarea {
            width: 100%;
            max-width: 600px;
            height: 120px;
            padding: 15px;
            background: rgba(60, 60, 60, 0.8);
            border: 1px solid var(--gray);
            border-radius: var(--border-radius);
            color: white;
            font-size: 1rem;
            margin: 15px 0;
            resize: vertical;
        }
        .rating-form button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 12px 30px;
            border-radius: var(--border-radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-form button:hover {
            background: #ff8b00;
            transform: translateY(-2px);
        }
        .comments-section {
            margin-top: 50px;
        }
        .comment-form {
            background: rgba(40, 40, 40, 0.8);
            padding: 25px;
            border-radius: var(--border-radius);
            margin-bottom: 30px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            color: #ccc;
            margin-bottom: 8px;
            font-weight: 600;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 15px;
            background: rgba(60, 60, 60, 0.8);
            border: 1px solid var(--gray);
            border-radius: var(--border-radius);
            color: white;
            font-size: 1rem;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
        }
        footer {
            background: rgba(10, 10, 10, 0.95);
            padding: 50px 0 20px;
            margin-top: 60px;
            border-top: 2px solid var(--primary);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 20px;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #aaa;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--primary);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            margin-top: 10px;
            padding: 8px 12px;
            background: rgba(255,107,0,0.1);
            border-radius: 4px;
        }
        .copyright {
            text-align: center;
            color: #777;
            padding-top: 20px;
            border-top: 1px solid var(--gray);
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .header-content {
                flex-wrap: wrap;
            }
            nav {
                width: 100%;
                flex-direction: column;
                gap: 10px;
                margin-top: 20px;
                display: none;
            }
            nav.active {
                display: flex;
            }
            .hamburger {
                display: flex;
            }
            .hamburger.active span:nth-child(1) {
                transform: rotate(45deg) translate(6px, 6px);
            }
            .hamburger.active span:nth-child(2) {
                opacity: 0;
            }
            .hamburger.active span:nth-child(3) {
                transform: rotate(-45deg) translate(6px, -6px);
            }
            article {
                padding: 25px;
            }
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .container {
                padding: 0 15px;
            }
            .search-box {
                flex-direction: column;
                border-radius: var(--border-radius);
            }
            .search-box input,
            .search-box button {
                width: 100%;
                border-radius: 0;
            }
            .rating-form textarea {
                height: 100px;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.8rem;
            }
            .logo {
                font-size: 1.5rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
            article {
                padding: 20px 15px;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        article, .search-container, .rating-section, .comments-section {
            animation: fadeIn 0.8s ease-out;
        }
        ::-webkit-scrollbar {
            width: 10px;
        }
        ::-webkit-scrollbar-track {
            background: #1a1a1a;
        }
        ::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 5px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #ff8b00;
        }