:root {
            --primary: #f99e1a; 
            --secondary: #1a9df9; 
            --dark: #0d1421;
            --darker: #070a12;
            --light: #f0f4f8;
            --gray: #8b9cb0;
            --success: #4CAF50;
            --warning: #ff9800;
            --danger: #f44336;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
            --transition: all 0.3s ease;
            --border-radius: 8px;
            --max-width: 1200px;
        }
        * {
            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: var(--light);
            background: linear-gradient(135deg, var(--darker) 0%, var(--dark) 100%);
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: rgba(13, 20, 33, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid var(--primary);
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
            letter-spacing: -0.5px;
        }
        .my-logo:hover {
            transform: scale(1.03);
            text-decoration: none;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .main-nav a {
            color: var(--light);
            font-weight: 600;
            font-size: 1.05rem;
            padding: 8px 5px;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            color: var(--light);
            cursor: pointer;
            background: none;
            border: none;
        }
        .breadcrumb {
            background-color: rgba(255,255,255,0.05);
            padding: 12px 0;
            font-size: 0.9rem;
            margin-bottom: 30px;
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb .separator {
            margin: 0 10px;
            color: var(--primary);
        }
        .hero {
            text-align: center;
            padding: 40px 0;
            background: radial-gradient(circle at center, rgba(26, 158, 249, 0.1) 0%, transparent 70%);
            margin-bottom: 40px;
        }
        .hero h1 {
            font-size: 3.2rem;
            margin-bottom: 20px;
            line-height: 1.2;
            background: linear-gradient(90deg, #fff, var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 2px 10px rgba(0,0,0,0.5);
        }
        .hero p {
            font-size: 1.3rem;
            color: var(--gray);
            max-width: 800px;
            margin: 0 auto 30px;
        }
        .search-box {
            max-width: 600px;
            margin: 30px auto;
            position: relative;
        }
        .search-box input {
            width: 100%;
            padding: 18px 25px;
            border-radius: 50px;
            border: 2px solid var(--primary);
            background: rgba(255,255,255,0.1);
            color: var(--light);
            font-size: 1.1rem;
            backdrop-filter: blur(5px);
        }
        .search-box button {
            position: absolute;
            right: 8px;
            top: 50%;
            transform: translateY(-50%);
            background: var(--primary);
            color: var(--darker);
            border: none;
            border-radius: 50%;
            width: 50px;
            height: 50px;
            font-size: 1.2rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-box button:hover {
            background: var(--secondary);
            transform: translateY(-50%) scale(1.05);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin-bottom: 50px;
        }
        article {
            background: rgba(255,255,255,0.03);
            border-radius: var(--border-radius);
            padding: 35px;
            box-shadow: var(--shadow);
            border: 1px solid rgba(255,255,255,0.05);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            color: var(--gray);
            font-size: 0.9rem;
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .update-time {
            color: var(--warning);
        }
        h2, h3, h4 {
            color: var(--primary);
            margin-top: 2em;
            margin-bottom: 0.8em;
            line-height: 1.3;
        }
        h2 {
            font-size: 2.2rem;
            border-left: 5px solid var(--secondary);
            padding-left: 15px;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--secondary);
        }
        h4 {
            font-size: 1.4rem;
            color: var(--light);
        }
        p {
            margin-bottom: 1.5em;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background: rgba(249, 158, 26, 0.1);
            border-left: 4px solid var(--primary);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .hero-image {
            width: 100%;
            border-radius: var(--border-radius);
            margin: 30px 0;
            border: 2px solid var(--primary);
            box-shadow: 0 10px 25px rgba(0,0,0,0.5);
            transition: var(--transition);
        }
        .hero-image:hover {
            transform: scale(1.005);
            box-shadow: 0 15px 35px rgba(0,0,0,0.6);
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 25px;
            margin: 40px 0;
        }
        .feature-card {
            background: rgba(26, 158, 249, 0.05);
            border: 1px solid rgba(26, 158, 249, 0.2);
            border-radius: var(--border-radius);
            padding: 25px;
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-5px);
            border-color: var(--secondary);
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
        }
        .feature-card i {
            font-size: 2.5rem;
            color: var(--secondary);
            margin-bottom: 15px;
        }
        .stats {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 20px;
            margin: 40px 0;
            text-align: center;
        }
        .stat-box {
            background: rgba(255,255,255,0.05);
            padding: 25px 15px;
            border-radius: var(--border-radius);
            min-width: 150px;
            flex: 1;
        }
        .stat-value {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
            line-height: 1;
        }
        .stat-label {
            color: var(--gray);
            font-size: 0.9rem;
            margin-top: 10px;
        }
        blockquote {
            font-style: italic;
            color: var(--gray);
            border-left: 4px solid var(--secondary);
            padding-left: 25px;
            margin: 30px 0;
            font-size: 1.2rem;
        }
        .link-list {
            background: rgba(255,255,255,0.03);
            border-radius: var(--border-radius);
            padding: 25px;
            margin: 40px 0;
        }
        .link-list h3 {
            margin-top: 0;
        }
        .link-list ul {
            list-style: none;
            column-count: 2;
            column-gap: 30px;
        }
        .link-list li {
            margin-bottom: 12px;
            break-inside: avoid;
        }
        .link-list a::before {
            content: "➤ ";
            color: var(--primary);
            margin-right: 8px;
        }
        aside {
            background: rgba(255,255,255,0.03);
            border-radius: var(--border-radius);
            padding: 25px;
            height: fit-content;
            border: 1px solid rgba(255,255,255,0.05);
        }
        .sidebar-widget {
            margin-bottom: 35px;
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            border-bottom: 2px solid var(--primary);
            padding-bottom: 10px;
            margin-bottom: 20px;
        }
        .popular-links a {
            display: block;
            padding: 12px 0;
            border-bottom: 1px dashed rgba(255,255,255,0.1);
            color: var(--light);
        }
        .popular-links a:hover {
            color: var(--primary);
            padding-left: 10px;
            text-decoration: none;
        }
        .user-interaction {
            background: rgba(255,255,255,0.03);
            border-radius: var(--border-radius);
            padding: 30px;
            margin-top: 50px;
            border: 1px solid rgba(255,255,255,0.05);
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        .form-group {
            margin-bottom: 25px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: var(--light);
            font-weight: 600;
        }
        .form-control {
            width: 100%;
            padding: 15px;
            border-radius: var(--border-radius);
            border: 1px solid rgba(255,255,255,0.2);
            background: rgba(255,255,255,0.08);
            color: var(--light);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            background: rgba(255,255,255,0.12);
        }
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        .btn {
            display: inline-block;
            padding: 15px 30px;
            background: linear-gradient(90deg, var(--primary), #ff7b00);
            color: var(--darker);
            border: none;
            border-radius: var(--border-radius);
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn:hover {
            background: linear-gradient(90deg, var(--secondary), var(--primary));
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(0,0,0,0.3);
            text-decoration: none;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 5px;
            margin: 15px 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: var(--gray);
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating label:hover,
        .star-rating label:hover ~ label,
        .star-rating input:checked ~ label {
            color: var(--primary);
        }
        footer {
            background-color: var(--darker);
            padding: 50px 0 25px;
            border-top: 2px solid var(--primary);
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            font-size: 1.4rem;
            margin-bottom: 25px;
            color: var(--light);
        }
        .footer-links a {
            display: block;
            margin-bottom: 12px;
            color: var(--gray);
        }
        .footer-links a:hover {
            color: var(--primary);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            padding: 10px;
            background: rgba(255,255,255,0.05);
            border-radius: var(--border-radius);
            margin-bottom: 10px;
            border-left: 4px solid var(--secondary);
        }
        .copyright {
            text-align: center;
            padding-top: 25px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: var(--gray);
            font-size: 0.9rem;
        }
        @media (max-width: 1024px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
            .link-list ul {
                column-count: 1;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .main-nav {
                order: 3;
                width: 100%;
                margin-top: 20px;
                display: none;
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
            .main-nav a {
                display: block;
                padding: 15px;
            }
            .hamburger {
                display: block;
            }
            .hero h1 {
                font-size: 2.5rem;
            }
            .hero p {
                font-size: 1.1rem;
            }
            .interaction-grid {
                grid-template-columns: 1fr;
            }
            .stats {
                flex-direction: column;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .footer-content {
                grid-template-columns: 1fr;
            }
            article, aside, .user-interaction {
                padding: 25px 20px;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
        }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 10px; }
        .mb-2 { margin-bottom: 20px; }
        .mb-3 { margin-bottom: 30px; }
        .mt-1 { margin-top: 10px; }
        .mt-2 { margin-top: 20px; }
        .mt-3 { margin-top: 30px; }
        .bold { font-weight: 700; color: var(--primary); }
        .emoji { font-size: 1.2em; margin-right: 5px; }