* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #e0e0e0;
            background: linear-gradient(135deg, #0f1525 0%, #1a1f35 100%);
            background-attachment: fixed;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        a {
            color: #6ea8ff;
            text-decoration: none;
            transition: color 0.3s ease, text-shadow 0.3s ease;
        }
        a:hover {
            color: #a3c8ff;
            text-shadow: 0 0 8px rgba(110, 168, 255, 0.5);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        .site-header {
            background: rgba(20, 25, 45, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid #2a3a60;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-family: 'Arial Rounded MT Bold', sans-serif;
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, #ff7ee6, #6ea8ff);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-decoration: none;
            padding: 5px 0;
        }
        .my-logo:hover {
            filter: brightness(1.2);
        }
        .main-nav {
            display: flex;
            gap: 1.5rem;
            align-items: center;
        }
        .main-nav a {
            color: #ccd6f6;
            font-weight: 500;
            padding: 0.5rem 0.8rem;
            border-radius: 5px;
        }
        .main-nav a:hover {
            background: rgba(110, 168, 255, 0.15);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #ccd6f6;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        .breadcrumb {
            padding: 0.8rem 0;
            font-size: 0.9rem;
            color: #8a9bb8;
            border-bottom: 1px solid #2a3a60;
            margin-bottom: 2rem;
        }
        .breadcrumb a {
            color: #8a9bb8;
        }
        .breadcrumb .separator {
            margin: 0 10px;
        }
        .search-container {
            margin: 2rem auto;
            max-width: 600px;
        }
        .search-form {
            display: flex;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
            border-radius: 50px;
            overflow: hidden;
        }
        .search-input {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: none;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 1rem;
        }
        .search-input::placeholder {
            color: #aaa;
        }
        .search-button {
            background: linear-gradient(90deg, #6ea8ff, #8a7cff);
            border: none;
            color: white;
            padding: 0 1.8rem;
            cursor: pointer;
            font-size: 1.2rem;
            transition: opacity 0.3s;
        }
        .search-button:hover {
            opacity: 0.9;
        }
        .main-content {
            background: rgba(25, 30, 50, 0.7);
            border-radius: 15px;
            padding: 2.5rem;
            margin-bottom: 3rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
        }
        h1 {
            font-size: 2.8rem;
            color: #ffffff;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #6ea8ff;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2.1rem;
            color: #c3d0ff;
            margin: 2.5rem 0 1.2rem;
            padding-left: 10px;
            border-left: 5px solid #ff7ee6;
        }
        h3 {
            font-size: 1.7rem;
            color: #d1dcff;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #e0e7ff;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            color: #b3c5ff;
            font-weight: 500;
            margin-bottom: 2rem;
            padding: 1rem;
            background: rgba(110, 168, 255, 0.08);
            border-radius: 10px;
            border-left: 4px solid #6ea8ff;
        }
        .highlight {
            background: linear-gradient(90deg, rgba(110, 168, 255, 0.15), transparent);
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
            border: 1px solid rgba(110, 168, 255, 0.3);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            color: #8a9bb8;
            font-size: 0.95rem;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px dashed #2a3a60;
        }
        .featured-image {
            margin: 2.5rem auto;
            text-align: center;
        }
        .featured-image img {
            max-height: 500px;
            object-fit: cover;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
            border: 2px solid #3a4a80;
        }
        .img-caption {
            font-style: italic;
            color: #8a9bb8;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.7rem;
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1rem;
            margin: 2.5rem 0;
        }
        .link-card {
            background: rgba(40, 50, 80, 0.5);
            border-radius: 10px;
            padding: 1.2rem;
            transition: transform 0.3s, background 0.3s;
            border: 1px solid rgba(255, 255, 255, 0.05);
        }
        .link-card:hover {
            transform: translateY(-5px);
            background: rgba(60, 80, 130, 0.5);
            border-color: #6ea8ff;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .key-term {
            font-weight: bold;
            color: #ffb366;
        }
        .user-interaction {
            background: rgba(30, 35, 60, 0.8);
            border-radius: 15px;
            padding: 2rem;
            margin: 3rem 0;
            border-top: 5px solid #8a7cff;
        }
        .interaction-title {
            color: #c3d0ff;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            color: #b3c5ff;
            font-weight: 500;
        }
        .form-control {
            width: 100%;
            padding: 0.9rem;
            border-radius: 8px;
            border: 1px solid #3a4a80;
            background: rgba(255, 255, 255, 0.07);
            color: #fff;
            font-size: 1rem;
        }
        .form-control:focus {
            outline: none;
            border-color: #6ea8ff;
            box-shadow: 0 0 0 3px rgba(110, 168, 255, 0.2);
        }
        .rating-stars {
            display: flex;
            gap: 10px;
            font-size: 1.8rem;
            color: #555;
            cursor: pointer;
            margin-bottom: 1rem;
        }
        .rating-stars .star {
            transition: color 0.2s, transform 0.2s;
        }
        .rating-stars .star:hover,
        .rating-stars .star.active {
            color: #ffcc00;
            transform: scale(1.2);
        }
        .submit-btn {
            background: linear-gradient(90deg, #8a7cff, #ff7ee6);
            color: white;
            border: none;
            padding: 1rem 2.5rem;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: opacity 0.3s, transform 0.2s;
        }
        .submit-btn:hover {
            opacity: 0.9;
            transform: scale(1.03);
        }
        .site-footer {
            background: rgba(15, 20, 35, 0.95);
            border-top: 1px solid #2a3a60;
            padding: 3rem 0 1.5rem;
            text-align: center;
            margin-top: 4rem;
        }
        friend-link {
            display: block;
            font-size: 1.1rem;
            color: #8a9bb8;
            margin-bottom: 1.5rem;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .copyright {
            color: #6c7890;
            font-size: 0.9rem;
            padding-top: 1.5rem;
            border-top: 1px solid #2a3a60;
        }
        @media (max-width: 768px) {
            body {
                padding: 0 10px;
            }
            .header-container {
                flex-direction: column;
                align-items: flex-start;
            }
            .my-logo {
                font-size: 1.8rem;
                margin-bottom: 1rem;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1.2rem;
                right: 15px;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 0.5rem;
                margin-top: 1rem;
            }
            .main-nav.active {
                display: flex;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .main-content {
                padding: 1.5rem;
            }
            .link-list {
                grid-template-columns: 1fr;
            }
            .footer-links {
                flex-direction: column;
                gap: 1rem;
            }
        }
        @media print {
            .site-header, .search-container, .user-interaction, .site-footer {
                display: none;
            }
            body {
                background: white;
                color: black;
                max-width: 100%;
            }
            a {
                color: #0056b3;
                text-decoration: underline;
            }
        }