* { 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: #0a0f1e;
            background-image: radial-gradient(circle at 15% 50%, rgba(30, 60, 114, 0.15) 0%, transparent 55%),
                              radial-gradient(circle at 85% 30%, rgba(114, 30, 60, 0.1) 0%, transparent 55%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        h1, h2, h3, h4 { color: #4dabf7; font-weight: 700; margin-bottom: 1rem; line-height: 1.3; }
        h1 { font-size: clamp(2.5rem, 5vw, 3.8rem); margin-top: 1.5rem; text-shadow: 0 0 15px rgba(77, 171, 247, 0.3); }
        h2 { font-size: clamp(2rem, 4vw, 2.8rem); border-left: 5px solid #ff6b6b; padding-left: 15px; margin-top: 2.5rem; }
        h3 { font-size: clamp(1.6rem, 3vw, 2.1rem); color: #69db7c; margin-top: 2rem; }
        h4 { font-size: 1.4rem; color: #ffa94d; margin-top: 1.8rem; }
        p { margin-bottom: 1.5rem; font-size: 1.1rem; text-align: justify; }
        a { color: #63e6be; text-decoration: none; transition: all 0.3s ease; }
        a:hover { color: #ffa94d; text-shadow: 0 0 8px rgba(255, 169, 77, 0.5); }
        strong { color: #ffd43b; font-weight: 700; }
        em { color: #b197fc; font-style: italic; }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        main.container { flex: 1; }
        header { background: rgba(10, 20, 40, 0.95); backdrop-filter: blur(10px); border-bottom: 2px solid #1c3b6a; position: sticky; top: 0; z-index: 1000; }
        .header-top { display: flex; justify-content: space-between; align-items: center; padding: 1.2rem 0; }
        .my-logo {
            font-family: 'Arial Black', Gadget, sans-serif;
            font-size: 2.3rem;
            background: linear-gradient(90deg, #4dabf7, #da77f2);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-decoration: none;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i { font-size: 2rem; color: #ff6b6b; }
        .search-form { display: flex; max-width: 400px; width: 100%; }
        .search-form input {
            flex: 1;
            padding: 12px 18px;
            border: 1px solid #4dabf7;
            border-radius: 30px 0 0 30px;
            background: rgba(20, 30, 48, 0.8);
            color: #fff;
            font-size: 1rem;
        }
        .search-form button {
            background: linear-gradient(90deg, #4dabf7, #339af0);
            color: white;
            border: none;
            border-radius: 0 30px 30px 0;
            padding: 12px 25px;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .search-form button:hover { background: linear-gradient(90deg, #339af0, #228be6); }
        nav { background: rgba(15, 25, 45, 0.98); border-top: 1px solid #2d4a7a; }
        .nav-container { display: flex; justify-content: space-between; align-items: center; position: relative; }
        .main-nav { display: flex; list-style: none; }
        .main-nav li { position: relative; }
        .main-nav a {
            display: block;
            padding: 18px 22px;
            color: #a5d8ff;
            font-weight: 500;
            border-bottom: 3px solid transparent;
            transition: all 0.3s;
        }
        .main-nav a:hover,
        .main-nav a.active { color: #fff; background: rgba(77, 171, 247, 0.15); border-bottom-color: #4dabf7; }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #4dabf7;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 10px;
        }
        .breadcrumb {
            padding: 1rem 0;
            background: rgba(30, 40, 70, 0.4);
            font-size: 0.95rem;
        }
        .breadcrumb a { color: #a5d8ff; }
        .breadcrumb span { color: #ccc; }
        .article-header { text-align: center; padding: 2.5rem 0; border-bottom: 2px dashed #2d4a7a; margin-bottom: 2.5rem; }
        .meta-info { display: flex; justify-content: center; gap: 20px; color: #94d82d; font-size: 0.95rem; margin-top: 1rem; }
        .article-image {
            max-width: 800px;
            margin: 2.5rem auto;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            border: 2px solid #4dabf7;
        }
        .article-image img { width: 100%; height: auto; display: block; transition: transform 0.5s; }
        .article-image:hover img { transform: scale(1.03); }
        .content-section {
            background: rgba(20, 30, 48, 0.7);
            border-radius: 15px;
            padding: 2.5rem;
            margin-bottom: 2.5rem;
            border-left: 5px solid #ff6b6b;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .content-section:hover { transform: translateY(-5px); box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4); }
        .highlight-box {
            background: linear-gradient(135deg, rgba(30, 60, 114, 0.6), rgba(114, 30, 60, 0.6));
            border: 1px solid #4dabf7;
            border-radius: 10px;
            padding: 2rem;
            margin: 2rem 0;
            position: relative;
        }
        .highlight-box::before {
            content: '\f0e5';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            top: -15px;
            left: 20px;
            background: #0a0f1e;
            color: #ffd43b;
            padding: 0 10px;
            font-size: 1.5rem;
        }
        .interactive-panel {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .comment-form, .rating-form {
            background: rgba(25, 35, 60, 0.9);
            padding: 2rem;
            border-radius: 12px;
            border: 1px solid #3b5bdb;
        }
        .form-group { margin-bottom: 1.5rem; }
        .form-group label { display: block; color: #69db7c; margin-bottom: 0.5rem; font-weight: 600; }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 15px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid #4dabf7;
            border-radius: 8px;
            color: #fff;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus { outline: none; border-color: #ffa94d; }
        .form-group textarea { min-height: 120px; resize: vertical; }
        .star-rating { display: flex; gap: 10px; font-size: 1.8rem; color: #ffd43b; margin: 10px 0; }
        .star-rating i { cursor: pointer; transition: transform 0.2s; }
        .star-rating i:hover { transform: scale(1.2); }
        .submit-btn {
            background: linear-gradient(90deg, #ff6b6b, #ff8787);
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: 30px;
            font-weight: bold;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s;
            display: block;
            width: 100%;
        }
        .submit-btn:hover { background: linear-gradient(90deg, #ff8787, #ff6b6b); box-shadow: 0 0 15px rgba(255, 107, 107, 0.6); }
        footer {
            background: #050a15;
            border-top: 3px solid #1c3b6a;
            margin-top: 4rem;
            padding: 3rem 0 1.5rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-section h4 { color: #4dabf7; margin-bottom: 1.5rem; font-size: 1.3rem; }
        .footer-links { list-style: none; }
        .footer-links li { margin-bottom: 0.8rem; }
        .footer-links a { color: #a5d8ff; display: block; padding: 5px 0; }
        .footer-links a:hover { color: #ffa94d; padding-left: 8px; }
        friend-link {
            display: block;
            background: rgba(77, 171, 247, 0.1);
            padding: 1rem;
            border-radius: 8px;
            margin: 1rem 0;
            border-left: 4px solid #ff6b6b;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2d4a7a;
            color: #868e96;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-nav { flex-wrap: wrap; justify-content: center; }
            .interactive-panel { grid-template-columns: 1fr; }
        }
        @media (max-width: 768px) {
            .header-top { flex-direction: column; gap: 1.5rem; }
            .search-form { max-width: 100%; }
            .hamburger { display: block; }
            .nav-container { flex-direction: column; align-items: flex-start; }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                margin-top: 1rem;
            }
            .main-nav.active { display: flex; }
            .main-nav li { width: 100%; text-align: center; }
            .main-nav a { padding: 15px; border-bottom: 1px solid #2d4a7a; }
            .content-section { padding: 1.8rem; }
        }
        @media (max-width: 480px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .meta-info { flex-direction: column; align-items: center; gap: 10px; }
        }