* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f8f9fa;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        h1, h2, h3, h4 {
            font-family: 'Arial Black', 'Arial Bold', Gadget, sans-serif;
            color: #1a365d;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        h1 {
            font-size: clamp(2.5rem, 5vw, 3.5rem);
            border-left: 6px solid #0073e6;
            padding-left: 1.5rem;
            margin-top: 1.5rem;
        }
        h2 {
            font-size: clamp(1.8rem, 4vw, 2.5rem);
            margin-top: 2.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e2e8f0;
        }
        h3 {
            font-size: 1.5rem;
            margin-top: 2rem;
            color: #2d3748;
        }
        h4 {
            font-size: 1.2rem;
            margin-top: 1.5rem;
            color: #4a5568;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        a {
            color: #0073e6;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #e53e3e;
        }
        strong {
            color: #2d3748;
        }
        .intro-emoji {
            font-size: 1.5rem;
            margin-right: 0.5rem;
        }
        .highlight {
            background: linear-gradient(120deg, #a0e7ff 0%, #a0e7ff 100%);
            background-repeat: no-repeat;
            background-size: 100% 0.4em;
            background-position: 0 90%;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        @media (min-width: 992px) {
            .main-grid {
                grid-template-columns: 1fr 300px;
            }
        }
        .site-header {
            background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Orbitron', sans-serif;
            font-size: 2rem;
            font-weight: 900;
            color: #00a8ff;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo:hover {
            color: #ffffff;
        }
        .my-logo i {
            font-size: 1.8rem;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #cbd5e0;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: #00a8ff;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #00a8ff;
            transition: width 0.3s;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                background: #2d3748;
                transition: left 0.4s ease;
                padding: 2rem;
                box-shadow: 0 5px 15px rgba(0,0,0,0.2);
            }
            .main-nav.active {
                left: 0;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 1rem;
            }
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #718096;
        }
        .breadcrumb a {
            color: #4a5568;
        }
        .breadcrumb span {
            margin: 0 0.5rem;
        }
        .article-main {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            color: #718096;
            font-size: 0.95rem;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #e2e8f0;
        }
        .update-time {
            background: #e6fffa;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            color: #234e52;
        }
        .sidebar {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
            align-self: start;
        }
        .widget {
            margin-bottom: 2.5rem;
        }
        .widget h3 {
            font-size: 1.3rem;
            margin-bottom: 1.2rem;
            color: #1a365d;
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        input, textarea, select {
            padding: 0.8rem 1rem;
            border: 1px solid #cbd5e0;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s, box-shadow 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #0073e6;
            box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.2);
        }
        button, .btn {
            background: linear-gradient(to right, #0073e6, #0056b3);
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.3s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }
        button:hover, .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(0, 115, 230, 0.3);
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #e2e8f0;
            cursor: pointer;
            margin-bottom: 1rem;
        }
        .star-rating .active {
            color: #f6ad55;
        }
        .featured-image {
            margin: 2.5rem 0;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #718096;
            padding: 0.8rem;
            background: #f7fafc;
            font-size: 0.95rem;
        }
        .internal-links {
            background: #f0f9ff;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .internal-links h4 {
            margin-top: 0;
        }
        .internal-links ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 0.8rem;
            list-style: none;
        }
        .internal-links li a {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            padding: 0.5rem;
            border-radius: 6px;
            background: white;
            transition: background 0.3s;
        }
        .internal-links li a:hover {
            background: #e6f7ff;
        }
        .site-footer {
            background: #1a202c;
            color: #cbd5e0;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-logo {
            font-family: 'Orbitron', sans-serif;
            font-size: 2rem;
            color: #00a8ff;
            margin-bottom: 1rem;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin: 1.5rem 0;
        }
        friend-link {
            display: inline-block;
            background: #2d3748;
            padding: 0.7rem 1.2rem;
            border-radius: 6px;
            transition: background 0.3s;
        }
        friend-link a {
            color: #90cdf4;
        }
        friend-link:hover {
            background: #4a5568;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2d3748;
            font-size: 0.9rem;
            color: #a0aec0;
        }
        @media (max-width: 768px) {
            .article-main, .sidebar {
                padding: 1.5rem;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .internal-links ul {
                grid-template-columns: 1fr;
            }
        }