* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #FF6B35;
            --secondary-color: #00C2FF;
            --accent-color: #FFD166;
            --dark-bg: #0A0A1A;
            --light-bg: #121230;
            --text-primary: #FFFFFF;
            --text-secondary: #CCCCFF;
            --border-radius: 12px;
            --transition: all 0.3s ease;
            --shadow: 0 8px 24px rgba(255, 107, 53, 0.15);
            --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            background: linear-gradient(135deg, var(--dark-bg) 0%, var(--light-bg) 100%);
            color: var(--text-primary);
            line-height: 1.8;
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: 80px;
        }
        h1, h2, h3, h4 {
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 1.5rem;
            color: var(--accent-color);
        }
        h1 {
            font-size: clamp(2.5rem, 5vw, 4rem);
            text-align: center;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            margin: 2rem 0;
            text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
        }
        h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.8rem);
            border-left: 5px solid var(--primary-color);
            padding-left: 1.5rem;
            margin-top: 3rem;
        }
        h3 {
            font-size: clamp(1.4rem, 2.5vw, 2rem);
            color: var(--secondary-color);
            margin-top: 2.5rem;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--text-primary);
            margin-top: 2rem;
        }
        p {
            margin-bottom: 1.8rem;
            font-size: 1.1rem;
            color: var(--text-secondary);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }
        header {
            background: rgba(10, 10, 26, 0.95);
            backdrop-filter: blur(10px);
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            border-bottom: 2px solid var(--primary-color);
            padding: 1rem 0;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 900;
            text-decoration: none;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 0.75rem;
            transition: var(--transition);
        }
        .my-logo:hover {
            color: var(--primary-color);
            transform: scale(1.05);
        }
        .my-logo i {
            color: var(--secondary-color);
            font-size: 2.2rem;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2.5rem;
        }
        .main-nav a {
            color: var(--text-primary);
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.75rem 0;
            position: relative;
            transition: var(--transition);
        }
        .main-nav a:hover {
            color: var(--primary-color);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--primary-color);
            transition: var(--transition);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            background: rgba(255, 107, 53, 0.1);
            padding: 1.2rem 2rem;
            border-radius: var(--border-radius);
            margin: 1.5rem 0 3rem;
            font-size: 0.95rem;
        }
        .breadcrumb a {
            color: var(--secondary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary-color);
            text-decoration: underline;
        }
        .breadcrumb span {
            color: var(--text-secondary);
            margin: 0 0.5rem;
        }
        article {
            background: rgba(18, 18, 48, 0.7);
            border-radius: var(--border-radius);
            padding: 3rem;
            margin-bottom: 3rem;
            box-shadow: var(--shadow);
            border: 1px solid rgba(255, 107, 53, 0.2);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            padding-bottom: 2rem;
            border-bottom: 2px dashed rgba(0, 194, 255, 0.3);
            margin-bottom: 3rem;
        }
        .update-time {
            color: var(--accent-color);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .word-count {
            background: rgba(0, 194, 255, 0.15);
            padding: 0.5rem 1rem;
            border-radius: 20px;
            font-size: 0.9rem;
        }
        .highlight {
            background: linear-gradient(90deg, rgba(255, 107, 53, 0.15), rgba(0, 194, 255, 0.15));
            border-left: 4px solid var(--primary-color);
            padding: 1.5rem 2rem;
            margin: 2.5rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .tip-box {
            background: rgba(255, 209, 102, 0.1);
            border: 2px solid var(--accent-color);
            border-radius: var(--border-radius);
            padding: 1.8rem;
            margin: 2.5rem 0;
            position: relative;
        }
        .tip-box::before {
            content: '💡 PRO TIP';
            position: absolute;
            top: -12px;
            left: 2rem;
            background: var(--dark-bg);
            padding: 0 1rem;
            font-weight: 700;
            color: var(--accent-color);
            font-size: 0.9rem;
        }
        .content-link {
            color: var(--secondary-color);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 2px dotted var(--secondary-color);
            transition: var(--transition);
        }
        .content-link:hover {
            color: var(--primary-color);
            border-bottom-style: solid;
        }
        .article-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: var(--border-radius);
            margin: 2.5rem auto;
            display: block;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
            border: 3px solid rgba(255, 107, 53, 0.3);
            transition: var(--transition);
        }
        .article-img:hover {
            transform: translateY(-5px);
            box-shadow: 0 16px 40px rgba(255, 107, 53, 0.25);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-secondary);
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .interactive-section {
            background: rgba(10, 10, 26, 0.8);
            border-radius: var(--border-radius);
            padding: 2.5rem;
            margin: 3rem 0;
            border: 2px solid rgba(0, 194, 255, 0.2);
        }
        .search-form {
            display: flex;
            margin: 2rem 0;
        }
        .search-input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: 2px solid var(--primary-color);
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-primary);
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-input:focus {
            outline: none;
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--secondary-color);
        }
        .search-btn {
            background: linear-gradient(90deg, var(--primary-color), #FF8B53);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-btn:hover {
            background: linear-gradient(90deg, #FF8B53, var(--primary-color));
            transform: scale(1.03);
        }
        .rating-system {
            background: rgba(18, 18, 48, 0.9);
            padding: 2rem;
            border-radius: var(--border-radius);
            margin: 3rem 0;
            text-align: center;
            border: 1px solid rgba(255, 209, 102, 0.2);
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1.5rem 0;
            font-size: 2.5rem;
        }
        .star {
            color: #444466;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: var(--accent-color);
            transform: scale(1.2);
        }
        .rating-btn {
            background: linear-gradient(90deg, var(--secondary-color), #00A2FF);
            color: white;
            border: none;
            padding: 1rem 2.5rem;
            border-radius: 50px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            margin-top: 1rem;
        }
        .rating-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0, 194, 255, 0.3);
        }
        .comments-section {
            margin: 4rem 0;
        }
        .comment-form {
            background: rgba(10, 10, 26, 0.8);
            padding: 2.5rem;
            border-radius: var(--border-radius);
            margin-bottom: 3rem;
        }
        .form-group {
            margin-bottom: 1.8rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            color: var(--accent-color);
            font-weight: 600;
        }
        .form-input,
        .form-textarea {
            width: 100%;
            padding: 1rem;
            border: 2px solid rgba(255, 107, 53, 0.3);
            border-radius: var(--border-radius);
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-primary);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-input:focus,
        .form-textarea:focus {
            outline: none;
            border-color: var(--secondary-color);
            background: rgba(255, 255, 255, 0.1);
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            background: linear-gradient(90deg, var(--primary-color), #FF8B53);
            color: white;
            border: none;
            padding: 1.2rem 3rem;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: var(--transition);
            display: block;
            margin: 2rem auto 0;
        }
        .submit-btn:hover {
            background: linear-gradient(90deg, #FF8B53, var(--primary-color));
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(255, 107, 53, 0.3);
        }
        footer {
            background: rgba(10, 10, 26, 0.98);
            padding: 4rem 0 2rem;
            margin-top: 4rem;
            border-top: 3px solid var(--primary-color);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .footer-section h3 {
            color: var(--accent-color);
            margin-bottom: 2rem;
            font-size: 1.5rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 1rem;
        }
        .footer-links a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .footer-links a:hover {
            color: var(--primary-color);
            transform: translateX(5px);
        }
        friend-link {
            display: block;
            background: rgba(255, 107, 53, 0.1);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin: 1rem 0;
            transition: var(--transition);
        }
        friend-link:hover {
            background: rgba(255, 107, 53, 0.2);
            transform: translateX(10px);
        }
        friend-link a {
            color: var(--secondary-color);
            text-decoration: none;
            font-weight: 600;
            display: block;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--text-secondary);
            font-size: 0.95rem;
        }
        @media (max-width: 1024px) {
            .container {
                padding: 0 1.5rem;
            }
            article {
                padding: 2rem;
            }
        }
        @media (max-width: 768px) {
            body {
                padding-top: 70px;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 70px);
                background: rgba(10, 10, 26, 0.98);
                backdrop-filter: blur(10px);
                transition: var(--transition);
                padding: 2rem;
            }
            .main-nav.active {
                left: 0;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 1.5rem;
            }
            .main-nav a {
                font-size: 1.3rem;
                padding: 1rem;
                display: block;
                border-bottom: 1px solid rgba(255, 107, 53, 0.2);
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
                padding-left: 1rem;
            }
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
            }
            .search-form {
                flex-direction: column;
            }
            .search-input {
                border-radius: var(--border-radius);
                margin-bottom: 0.5rem;
            }
            .search-btn {
                border-radius: var(--border-radius);
                justify-content: center;
            }
            .stars {
                font-size: 2rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 1rem;
            }
            article {
                padding: 1.5rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .interactive-section,
            .comment-form,
            .rating-system {
                padding: 1.5rem;
            }
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .fade-in {
            animation: fadeInUp 0.8s ease forwards;
        }
        .delay-1 { animation-delay: 0.2s; opacity: 0; }
        .delay-2 { animation-delay: 0.4s; opacity: 0; }
        .delay-3 { animation-delay: 0.6s; opacity: 0; }
        .text-bold {
            font-weight: 800;
            color: var(--accent-color);
        }
        .text-gradient {
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            font-weight: 800;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }