* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #0a0e17;
            color: #e0e0e0;
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            color: #4fc3f7;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #29b6f6;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .header {
            background: linear-gradient(135deg, #1a237e 0%, #0d47a1 100%);
            padding: 1rem 2rem;
            border-bottom: 3px solid #4fc3f7;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 2.5rem;
            font-weight: 900;
            background: linear-gradient(90deg, #4fc3f7, #29b6f6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-transform: uppercase;
            letter-spacing: 2px;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
        }
        .my-logo:hover {
            transform: scale(1.05);
            transition: transform 0.3s ease;
        }
        .nav-main {
            display: flex;
            gap: 2rem;
        }
        .nav-main a {
            color: #bbdefb;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }
        .nav-main a:hover {
            background-color: rgba(79, 195, 247, 0.2);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #bbdefb;
        }
        .breadcrumb {
            padding: 1rem 2rem;
            background-color: #111827;
            font-size: 0.9rem;
            max-width: 1400px;
            margin: 0 auto;
        }
        .breadcrumb a {
            color: #90caf9;
        }
        .breadcrumb span {
            color: #b0bec5;
        }
        .container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 2rem;
        }
        @media (max-width: 768px) {
            .container {
                grid-template-columns: 1fr;
            }
        }
        .main-content {
            background-color: #1a202c;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
        }
        .sidebar {
            background-color: #1a202c;
            border-radius: 12px;
            padding: 1.5rem;
            align-self: start;
            position: sticky;
            top: 120px;
        }
        h1, h2, h3, h4 {
            color: #4fc3f7;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 3rem;
            border-bottom: 3px solid #29b6f6;
            padding-bottom: 0.5rem;
            margin-bottom: 2rem;
            text-align: center;
        }
        h2 {
            font-size: 2.2rem;
            margin-top: 2.5rem;
            padding-left: 0.5rem;
            border-left: 5px solid #29b6f6;
        }
        h3 {
            font-size: 1.8rem;
            margin-top: 2rem;
            color: #81d4fa;
        }
        h4 {
            font-size: 1.4rem;
            margin-top: 1.5rem;
            color: #b3e5fc;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .intro {
            font-size: 1.2rem;
            background-color: #111827;
            padding: 1.5rem;
            border-radius: 8px;
            margin-bottom: 2rem;
            border-left: 5px solid #4fc3f7;
        }
        .highlight {
            background-color: #0d47a1;
            padding: 1rem;
            border-radius: 8px;
            margin: 1.5rem 0;
            border-left: 5px solid #ff9800;
        }
        .mission-list {
            list-style-type: none;
            padding-left: 1.5rem;
        }
        .mission-list li {
            margin-bottom: 1rem;
            padding-left: 1.5rem;
            position: relative;
        }
        .mission-list li:before {
            content: '🔹';
            position: absolute;
            left: 0;
            color: #4fc3f7;
        }
        .feature-img {
            width: 100%;
            border-radius: 12px;
            margin: 2rem auto;
            border: 3px solid #4fc3f7;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.7);
            transition: transform 0.3s ease;
        }
        .feature-img:hover {
            transform: scale(1.02);
        }
        .widget {
            margin-bottom: 2rem;
            padding-bottom: 1.5rem;
            border-bottom: 1px solid #37474f;
        }
        .widget h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: #bbdefb;
        }
        .search-box input {
            width: 100%;
            padding: 0.8rem;
            border-radius: 6px;
            border: 2px solid #37474f;
            background-color: #111827;
            color: #e0e0e0;
            font-size: 1rem;
        }
        .search-box button {
            width: 100%;
            margin-top: 0.8rem;
            padding: 0.8rem;
            background-color: #1a237e;
            color: white;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            font-weight: bold;
            transition: background-color 0.3s ease;
        }
        .search-box button:hover {
            background-color: #0d47a1;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
            font-size: 1.8rem;
            color: #ffb74d;
        }
        .rating-stars i {
            cursor: pointer;
            transition: color 0.3s ease;
        }
        .rating-stars i:hover {
            color: #ff9800;
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 0.8rem;
            margin-bottom: 1rem;
            border-radius: 6px;
            border: 2px solid #37474f;
            background-color: #111827;
            color: #e0e0e0;
            font-size: 1rem;
        }
        .comment-form button {
            padding: 0.8rem 1.5rem;
            background-color: #388e3c;
            color: white;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            font-weight: bold;
            transition: background-color 0.3s ease;
        }
        .comment-form button:hover {
            background-color: #2e7d32;
        }
        .footer {
            background-color: #111827;
            padding: 3rem 2rem 1.5rem;
            margin-top: 3rem;
            border-top: 3px solid #4fc3f7;
        }
        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        friend-link {
            display: block;
            margin-bottom: 1rem;
        }
        friend-link a {
            color: #bbdefb;
            padding: 0.5rem;
            display: block;
            border-radius: 4px;
            background-color: #1a202c;
            transition: background-color 0.3s ease;
        }
        friend-link a:hover {
            background-color: #37474f;
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #37474f;
            margin-top: 2rem;
            color: #b0bec5;
            font-size: 0.9rem;
        }
        .update-time {
            background-color: #1a237e;
            padding: 0.5rem 1rem;
            border-radius: 6px;
            display: inline-block;
            margin: 1rem 0;
            font-weight: bold;
            color: #bbdefb;
        }
        @media (max-width: 1024px) {
            .header-container {
                flex-direction: column;
                gap: 1rem;
            }
            .nav-main {
                flex-wrap: wrap;
                justify-content: center;
            }
            h1 {
                font-size: 2.5rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-main {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: #1a237e;
                padding: 1rem;
                border-radius: 8px;
                margin-top: 1rem;
            }
            .nav-main.active {
                display: flex;
            }
            .container {
                padding: 0 1rem;
            }
            .main-content, .sidebar {
                padding: 1.5rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .main-content, .sidebar {
            animation: fadeIn 0.8s ease-out;
        }