* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: linear-gradient(135deg, #0c2b5e 0%, #1a5f7a 100%);
            color: #e0f7ff;
            line-height: 1.8;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #4fc3f7;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        a:hover {
            color: #ffcc80;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mb-3 { margin-bottom: 3rem; }
        .p-2 { padding: 2rem; }
        .bg-dark {
            background-color: rgba(10, 35, 66, 0.85);
            border-radius: 12px;
            border: 1px solid #2a5278;
        }
        .highlight {
            color: #ffcc80;
            font-weight: bold;
        }
        .emoji { font-size: 1.2em; }
        header {
            background: rgba(8, 25, 48, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 3px solid #4fc3f7;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(to right, #4fc3f7, #80deea);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 1px;
            text-shadow: 0 2px 5px rgba(0,0,0,0.3);
        }
        .my-logo:hover {
            transform: scale(1.03);
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 20px;
        }
        .desktop-nav a:hover {
            background: rgba(79, 195, 247, 0.15);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #4fc3f7;
        }
        .mobile-nav {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background: rgba(8, 25, 48, 0.98);
            border-top: 1px solid #2a5278;
            padding: 1rem;
            flex-direction: column;
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav ul {
            list-style: none;
            width: 100%;
        }
        .mobile-nav li {
            margin: 0.8rem 0;
        }
        .mobile-nav a {
            display: block;
            padding: 0.8rem;
            border-bottom: 1px solid #2a5278;
            font-weight: 600;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #b0d4ff;
        }
        .breadcrumb a:hover {
            color: #ffcc80;
        }
        main {
            flex: 1;
            padding: 2rem 0;
        }
        article {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            article {
                grid-template-columns: 1fr;
            }
        }
        .content-area h1 {
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            color: #80deea;
            line-height: 1.2;
        }
        .content-area h2 {
            font-size: 2rem;
            margin: 2.5rem 0 1rem;
            color: #4fc3f7;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #2a5278;
        }
        .content-area h3 {
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
            color: #ffcc80;
        }
        .content-area h4 {
            font-size: 1.3rem;
            margin: 1.5rem 0 0.8rem;
            color: #a5d6a7;
        }
        .content-area p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .content-area ul, .content-area ol {
            margin: 1.5rem 0 1.5rem 2rem;
        }
        .content-area li {
            margin-bottom: 0.8rem;
        }
        .intro-box {
            background: linear-gradient(to right, rgba(25, 118, 210, 0.2), rgba(41, 98, 255, 0.1));
            border-left: 5px solid #4fc3f7;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 12px 12px 0;
        }
        .feature-img {
            width: 100%;
            border-radius: 15px;
            border: 3px solid #4fc3f7;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
            margin: 2rem 0;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: rgba(10, 35, 66, 0.85);
            border-radius: 12px;
            border: 1px solid #2a5278;
            padding: 1.5rem;
        }
        .widget h3 {
            color: #ffcc80;
            margin-top: 0;
            font-size: 1.4rem;
            border-bottom: 1px solid #2a5278;
            padding-bottom: 0.5rem;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-control {
            width: 100%;
            padding: 0.8rem;
            border-radius: 8px;
            border: 1px solid #2a5278;
            background: rgba(20, 50, 90, 0.7);
            color: #e0f7ff;
            font-size: 1rem;
        }
        .form-control:focus {
            outline: none;
            border-color: #4fc3f7;
            box-shadow: 0 0 0 3px rgba(79, 195, 247, 0.3);
        }
        textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }
        .btn {
            background: linear-gradient(to right, #4fc3f7, #29b6f6);
            color: #0c2b5e;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 30px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-block;
            text-align: center;
        }
        .btn:hover {
            background: linear-gradient(to right, #29b6f6, #0288d1);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(41, 182, 246, 0.4);
            text-decoration: none;
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
            justify-content: center;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 2rem;
            color: #555;
            cursor: pointer;
            transition: color 0.2s;
        }
        .rating label:hover,
        .rating label:hover ~ label,
        .rating input:checked ~ label {
            color: #ffcc00;
        }
        footer {
            background: rgba(5, 18, 35, 0.95);
            border-top: 3px solid #4fc3f7;
            margin-top: 3rem;
            padding: 2rem 0;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
            margin: 1.5rem 0;
        }
        friend-link {
            background: rgba(79, 195, 247, 0.1);
            padding: 0.5rem 1rem;
            border-radius: 20px;
            border: 1px solid #2a5278;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2a5278;
            color: #b0d4ff;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .content-area h1 {
                font-size: 2.2rem;
            }
            .content-area h2 {
                font-size: 1.8rem;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }