* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #0f1b2d;
            color: #e0e7ff;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: #6ab0ff;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #ffcc00;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .site-header {
            background: linear-gradient(135deg, #1a2b4a 0%, #0a1525 100%);
            padding: 1rem 2rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(90deg, #ffcc00, #6ab0ff);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -1px;
        }
        .logo a:hover {
            filter: brightness(1.2);
        }
        .nav-desktop ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-desktop a {
            font-size: 1.1rem;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 5px;
        }
        .nav-desktop a:hover {
            background-color: rgba(106, 176, 255, 0.15);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #6ab0ff;
        }
        .nav-mobile {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background-color: #1a2b4a;
            padding: 1rem;
            box-shadow: 0 10px 20px rgba(0,0,0,0.3);
        }
        .nav-mobile.active {
            display: block;
        }
        .nav-mobile ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .nav-mobile a {
            display: block;
            padding: 0.8rem;
            border-bottom: 1px solid #2a3f66;
        }
        .breadcrumb {
            background-color: #152238;
            padding: 0.8rem 2rem;
            font-size: 0.9rem;
            border-bottom: 1px solid #2a3f66;
        }
        .breadcrumb a {
            color: #a0c1ff;
        }
        .breadcrumb span {
            color: #ccc;
            margin: 0 0.5rem;
        }
        .container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 1.5rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media (max-width: 992px) {
            .container {
                grid-template-columns: 1fr;
            }
        }
        main {
            background: rgba(26, 43, 74, 0.7);
            border-radius: 15px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
            border: 1px solid #2a3f66;
        }
        article h1 {
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            color: #ffcc00;
            line-height: 1.2;
            border-bottom: 3px solid #6ab0ff;
            padding-bottom: 0.5rem;
        }
        article h2 {
            font-size: 2rem;
            margin: 2.5rem 0 1.2rem;
            color: #6ab0ff;
            padding-left: 0.5rem;
            border-left: 5px solid #ffcc00;
        }
        article h3 {
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
            color: #a0c1ff;
        }
        article h4 {
            font-size: 1.3rem;
            margin: 1.5rem 0 0.8rem;
            color: #b8d0ff;
        }
        article p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px dashed #2a3f66;
            font-size: 0.95rem;
            color: #aaa;
        }
        .update-time {
            color: #ff9966;
            font-weight: bold;
        }
        .featured-img {
            width: 100%;
            border-radius: 10px;
            overflow: hidden;
            margin: 2rem 0;
            border: 3px solid #3a5a8c;
            box-shadow: 0 8px 20px rgba(0,0,0,0.5);
        }
        .featured-img img {
            width: 100%;
            transition: transform 0.5s ease;
        }
        .featured-img img:hover {
            transform: scale(1.03);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #aaa;
            margin-top: 0.5rem;
        }
        .highlight {
            background-color: rgba(255, 204, 0, 0.1);
            border-left: 5px solid #ffcc00;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
        }
        .tip {
            background-color: rgba(106, 176, 255, 0.1);
            border-left: 5px solid #6ab0ff;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
        }
        .tip i {
            color: #6ab0ff;
            margin-right: 0.5rem;
        }
        .keywords {
            font-weight: bold;
            color: #ffcc00;
        }
        aside {
            background: rgba(26, 43, 74, 0.7);
            border-radius: 15px;
            padding: 2rem;
            align-self: start;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
            border: 1px solid #2a3f66;
        }
        .sidebar-widget {
            margin-bottom: 2.5rem;
        }
        .sidebar-widget h3 {
            color: #ffcc00;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #6ab0ff;
            font-size: 1.5rem;
        }
        .search-box form {
            display: flex;
        }
        .search-box input {
            flex: 1;
            padding: 0.9rem;
            border: 1px solid #3a5a8c;
            border-radius: 5px 0 0 5px;
            background-color: #152238;
            color: #fff;
            outline: none;
        }
        .search-box button {
            background-color: #6ab0ff;
            color: #0f1b2d;
            border: none;
            padding: 0 1.2rem;
            border-radius: 0 5px 5px 0;
            cursor: pointer;
            font-weight: bold;
            transition: background-color 0.3s;
        }
        .search-box button:hover {
            background-color: #ffcc00;
        }
        .related-links ul {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dotted #2a3f66;
        }
        .related-links a:hover {
            color: #ffcc00;
            padding-left: 5px;
        }
        .interaction {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid #2a3f66;
        }
        .rating-widget, .comment-widget {
            background: rgba(21, 34, 56, 0.8);
            padding: 2rem;
            border-radius: 10px;
            margin-bottom: 2rem;
        }
        .rating-widget h3, .comment-widget h3 {
            color: #ffcc00;
            margin-bottom: 1.5rem;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .stars i {
            font-size: 2rem;
            color: #555;
            cursor: pointer;
            transition: color 0.2s;
        }
        .stars i:hover,
        .stars i.active {
            color: #ffcc00;
        }
        .rating-form input, .comment-form textarea, .comment-form input {
            width: 100%;
            padding: 0.9rem;
            margin-bottom: 1rem;
            background-color: #152238;
            border: 1px solid #3a5a8c;
            border-radius: 5px;
            color: #fff;
        }
        .rating-form button, .comment-form button {
            background-color: #ff9966;
            color: #0f1b2d;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 5px;
            cursor: pointer;
            font-weight: bold;
            transition: background-color 0.3s;
        }
        .rating-form button:hover, .comment-form button:hover {
            background-color: #ffcc00;
        }
        footer {
            background: linear-gradient(135deg, #0a1525 0%, #1a2b4a 100%);
            padding: 3rem 2rem 1.5rem;
            margin-top: 4rem;
            border-top: 3px solid #6ab0ff;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 900;
            background: linear-gradient(90deg, #ffcc00, #6ab0ff);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            margin-bottom: 1rem;
        }
        .footer-links h4 {
            color: #ffcc00;
            margin-bottom: 1.2rem;
            font-size: 1.3rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.7rem;
        }
        friend-link {
            display: block;
            background-color: rgba(106, 176, 255, 0.1);
            padding: 1rem;
            margin: 1rem 0;
            border-radius: 5px;
            border-left: 4px solid #ffcc00;
        }
        .copyright {
            text-align: center;
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid #2a3f66;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-container {
                padding: 0.5rem;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .container {
                padding: 0 1rem;
                gap: 1.5rem;
            }
            main, aside {
                padding: 1.5rem;
            }
            article h1 {
                font-size: 2.2rem;
            }
            article h2 {
                font-size: 1.8rem;
            }
        }