* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #0a1423;
            color: #e6e6e6;
            line-height: 1.7;
            background-image: linear-gradient(rgba(10, 20, 35, 0.95), rgba(10, 20, 35, 0.98)), url('https://images.unsplash.com/photo-1544551763-46a013bb70d5?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=30');
            background-attachment: fixed;
            background-size: cover;
            background-position: center;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #4da6ff;
            text-decoration: none;
            transition: color 0.3s ease, text-shadow 0.3s ease;
        }
        a:hover {
            color: #80c1ff;
            text-shadow: 0 0 8px rgba(77, 166, 255, 0.5);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.7);
        }
        .site-header {
            background-color: rgba(5, 12, 23, 0.92);
            border-bottom: 3px solid #c39738;
            padding: 1.2rem 5%;
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, #c39738, #ffd166);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
            letter-spacing: 1px;
        }
        .my-logo:hover {
            background: linear-gradient(90deg, #ffd166, #c39738);
            -webkit-background-clip: text;
            background-clip: text;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #c39738;
            color: #c39738;
            font-size: 1.8rem;
            padding: 0.5rem 0.8rem;
            border-radius: 5px;
            cursor: pointer;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2.2rem;
        }
        .main-nav a {
            color: #b8c7d9;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
        }
        .main-nav a:hover, .main-nav a.active {
            background-color: rgba(195, 151, 56, 0.15);
            color: #ffd166;
        }
        .breadcrumb {
            padding: 1rem 5%;
            background-color: rgba(15, 30, 50, 0.7);
            font-size: 0.95rem;
            border-bottom: 1px solid #2a3a52;
        }
        .breadcrumb a {
            color: #8fa3c9;
        }
        .breadcrumb span {
            color: #c39738;
            margin: 0 0.5rem;
        }
        .main-content {
            flex: 1;
            max-width: 1200px;
            width: 90%;
            margin: 2.5rem auto;
            background-color: rgba(15, 25, 40, 0.85);
            border-radius: 15px;
            padding: 3rem;
            border: 1px solid #2a3a52;
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6);
        }
        h1, h2, h3, h4 {
            color: #ffd166;
            margin-top: 2.2rem;
            margin-bottom: 1rem;
            line-height: 1.3;
            font-weight: 700;
        }
        h1 {
            font-size: 3.2rem;
            text-align: center;
            border-bottom: 3px solid #c39738;
            padding-bottom: 1.5rem;
            margin-top: 0;
            text-shadow: 0 3px 6px rgba(0, 0, 0, 0.7);
        }
        h2 {
            font-size: 2.4rem;
            border-left: 5px solid #4da6ff;
            padding-left: 1rem;
            margin-top: 3rem;
        }
        h3 {
            font-size: 1.9rem;
            color: #80c1ff;
        }
        h4 {
            font-size: 1.5rem;
            color: #a3d5ff;
        }
        p {
            margin-bottom: 1.8rem;
            font-size: 1.15rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.3rem;
            font-weight: 500;
            color: #d9e6ff;
            background: rgba(30, 50, 80, 0.4);
            padding: 2rem;
            border-radius: 10px;
            margin: 2.5rem 0;
            border-left: 5px solid #c39738;
        }
        .highlight {
            background-color: rgba(195, 151, 56, 0.1);
            border-left: 4px solid #c39738;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .important {
            font-weight: 700;
            color: #ffd166;
            font-size: 1.1em;
        }
        .emoji {
            font-size: 1.3em;
            margin-right: 0.5rem;
        }
        .feature-img {
            width: 100%;
            max-width: 900px;
            margin: 3rem auto;
            border: 3px solid #c39738;
        }
        .feature-img figcaption {
            text-align: center;
            font-style: italic;
            color: #8fa3c9;
            margin-top: 0.8rem;
            font-size: 1rem;
        }
        .content-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
            margin: 3rem 0;
        }
        .link-card {
            background: rgba(30, 50, 80, 0.5);
            border: 1px solid #4da6ff;
            border-radius: 10px;
            padding: 1.8rem;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .link-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 25px rgba(77, 166, 255, 0.3);
        }
        .link-card h3 {
            margin-top: 0;
        }
        .interactive-module {
            background: rgba(20, 35, 60, 0.7);
            border-radius: 12px;
            padding: 2.5rem;
            margin: 3.5rem 0;
            border: 1px solid #3a506b;
        }
        .module-title {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 2rem;
        }
        .module-title i {
            color: #c39738;
            font-size: 1.8rem;
        }
        .form-group {
            margin-bottom: 1.8rem;
        }
        label {
            display: block;
            margin-bottom: 0.7rem;
            color: #b8c7d9;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 1rem;
            border-radius: 8px;
            border: 1px solid #3a506b;
            background-color: rgba(10, 20, 35, 0.8);
            color: #e6e6e6;
            font-size: 1rem;
            transition: border 0.3s ease, box-shadow 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #4da6ff;
            box-shadow: 0 0 0 3px rgba(77, 166, 255, 0.2);
        }
        button, .btn {
            background: linear-gradient(135deg, #c39738, #a67c00);
            color: #0a1423;
            border: none;
            padding: 1rem 2.2rem;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-block;
            text-align: center;
        }
        button:hover, .btn:hover {
            background: linear-gradient(135deg, #ffd166, #c39738);
            transform: scale(1.05);
            box-shadow: 0 5px 15px rgba(195, 151, 56, 0.5);
        }
        .rating {
            display: flex;
            gap: 1rem;
            margin: 1.5rem 0;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 2.5rem;
            color: #555;
            cursor: pointer;
            margin: 0;
        }
        .rating input:checked ~ label,
        .rating label:hover,
        .rating label:hover ~ label {
            color: #ffd700;
        }
        .site-footer {
            background-color: rgba(5, 12, 23, 0.95);
            border-top: 3px solid #c39738;
            padding: 3rem 5% 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
        }
        .footer-section h3 {
            color: #ffd166;
            margin-bottom: 1.5rem;
            font-size: 1.5rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 1rem;
        }
        friend-link {
            display: block;
            background: rgba(30, 50, 80, 0.5);
            padding: 1rem;
            border-radius: 8px;
            margin-bottom: 1rem;
            border-left: 4px solid #4da6ff;
        }
        .copyright {
            text-align: center;
            padding-top: 2.5rem;
            margin-top: 2.5rem;
            border-top: 1px solid #2a3a52;
            color: #8fa3c9;
            font-size: 0.95rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.8rem; }
            h2 { font-size: 2.1rem; }
            .main-content { padding: 2.5rem; width: 95%; }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: rgba(5, 12, 23, 0.98);
                padding: 1.5rem 5%;
                border-top: 1px solid #2a3a52;
                box-shadow: 0 10px 20px rgba(0,0,0,0.5);
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 1.2rem;
            }
            .main-nav a {
                display: block;
                padding: 1rem;
                border-radius: 6px;
            }
            .header-container {
                flex-wrap: wrap;
            }
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.9rem; }
            .intro { font-size: 1.15rem; padding: 1.5rem; }
            .main-content { padding: 2rem; }
            .content-links {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .my-logo { font-size: 1.8rem; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
            .interactive-module { padding: 1.8rem; }
            .footer-container { grid-template-columns: 1fr; }
        }