* {
            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, #0c1a2a 0%, #1a3a5f 100%);
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: #4da6ff;
            text-decoration: none;
            transition: color 0.3s ease, text-shadow 0.3s ease;
        }
        a:hover {
            color: #80ccff;
            text-shadow: 0 0 8px rgba(77, 166, 255, 0.5);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .text-center { text-align: center; }
        .bold { font-weight: 700; }
        .highlight {
            background: linear-gradient(90deg, rgba(255,215,0,0.15) 0%, rgba(255,140,0,0.15) 100%);
            padding: 2px 8px;
            border-radius: 4px;
            border-left: 3px solid #ff8c00;
        }
        .site-header {
            background: rgba(10, 25, 47, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid #1e3a5f;
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 2.2rem;
            background: linear-gradient(to right, #ff8a00, #da1b60);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-decoration: none;
            font-weight: 900;
            letter-spacing: -1px;
        }
        .my-logo:hover {
            filter: drop-shadow(0 0 10px rgba(218, 27, 96, 0.7));
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .main-nav a {
            color: #b0d0ff;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 8px 5px;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: #4da6ff;
            border-bottom-color: #4da6ff;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            color: #4da6ff;
            background: none;
            border: none;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 15px 0;
            background: rgba(30, 58, 95, 0.4);
            font-size: 0.9rem;
        }
        .breadcrumb .container {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb a {
            color: #a3c8ff;
        }
        .breadcrumb i {
            margin: 0 8px;
            color: #5a7fa3;
        }
        .search-bar {
            background: rgba(20, 40, 70, 0.6);
            padding: 25px 0;
            margin: 20px 0;
            border-radius: 12px;
            box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.3);
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            gap: 10px;
        }
        .search-input {
            flex-grow: 1;
            padding: 15px 20px;
            border: 2px solid #2a4a75;
            border-radius: 50px;
            background: rgba(10, 25, 47, 0.8);
            color: #fff;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s, box-shadow 0.3s;
        }
        .search-input:focus {
            border-color: #4da6ff;
            box-shadow: 0 0 15px rgba(77, 166, 255, 0.5);
        }
        .search-button {
            padding: 15px 30px;
            background: linear-gradient(90deg, #ff8a00, #da1b60);
            color: white;
            border: none;
            border-radius: 50px;
            font-weight: bold;
            cursor: pointer;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .search-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(218, 27, 96, 0.4);
        }
        .main-content {
            padding: 40px 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article {
            background: rgba(15, 30, 50, 0.8);
            border-radius: 16px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            border: 1px solid #2a4a75;
        }
        .article h1 {
            font-size: 2.8rem;
            color: #fff;
            margin-bottom: 25px;
            line-height: 1.2;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
        }
        .article h2 {
            font-size: 2rem;
            color: #4da6ff;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #2a4a75;
        }
        .article h3 {
            font-size: 1.6rem;
            color: #ffb347;
            margin: 30px 0 15px;
        }
        .article h4 {
            font-size: 1.3rem;
            color: #a3c8ff;
            margin: 25px 0 12px;
        }
        .article p {
            margin-bottom: 1.5em;
            font-size: 1.1rem;
            text-align: justify;
        }
        .article ul, .article ol {
            margin-bottom: 1.5em;
            padding-left: 30px;
        }
        .article li {
            margin-bottom: 0.8em;
        }
        .featured-image {
            margin: 30px auto;
            max-width: 900px;
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.7);
            border: 3px solid #3a5a8a;
        }
        .update-time {
            display: inline-block;
            background: rgba(255, 140, 0, 0.15);
            color: #ffb347;
            padding: 8px 15px;
            border-radius: 50px;
            font-size: 0.9rem;
            margin-bottom: 25px;
        }
        .update-time i {
            margin-right: 8px;
        }
        .sidebar {
            background: rgba(15, 30, 50, 0.8);
            border-radius: 16px;
            padding: 25px;
            align-self: start;
            border: 1px solid #2a4a75;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
        }
        .sidebar h3 {
            color: #ff8a00;
            margin-bottom: 20px;
            font-size: 1.5rem;
        }
        .quick-links {
            list-style: none;
        }
        .quick-links li {
            margin-bottom: 15px;
        }
        .quick-links a {
            display: block;
            padding: 12px 15px;
            background: rgba(42, 74, 117, 0.5);
            border-radius: 8px;
            border-left: 4px solid #4da6ff;
            transition: all 0.3s;
        }
        .quick-links a:hover {
            background: rgba(77, 166, 255, 0.2);
            transform: translateX(5px);
        }
        .user-interaction {
            margin-top: 50px;
            background: rgba(20, 40, 70, 0.6);
            border-radius: 16px;
            padding: 30px;
            border: 1px solid #2a4a75;
        }
        .interaction-title {
            color: #ffb347;
            font-size: 1.8rem;
            margin-bottom: 25px;
        }
        .rating-form, .comment-form {
            margin-bottom: 40px;
        }
        .stars {
            display: flex;
            gap: 10px;
            margin: 15px 0;
            direction: rtl; 
        }
        .star {
            font-size: 2rem;
            color: #555;
            cursor: pointer;
            transition: color 0.2s, transform 0.2s;
        }
        .star:hover,
        .star:hover ~ .star {
            color: #ffcc00;
        }
        .star.active {
            color: #ffcc00;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-label {
            display: block;
            margin-bottom: 8px;
            color: #a3c8ff;
            font-weight: 600;
        }
        .form-input, .form-textarea {
            width: 100%;
            padding: 15px;
            border-radius: 8px;
            border: 1px solid #2a4a75;
            background: rgba(10, 25, 47, 0.8);
            color: #fff;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        .form-input:focus, .form-textarea:focus {
            outline: none;
            border-color: #4da6ff;
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-button {
            padding: 15px 35px;
            background: linear-gradient(90deg, #00cc66, #00b359);
            color: white;
            border: none;
            border-radius: 50px;
            font-weight: bold;
            font-size: 1rem;
            cursor: pointer;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .submit-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(0, 204, 102, 0.4);
        }
        .site-footer {
            background: rgba(10, 25, 47, 0.95);
            border-top: 2px solid #1e3a5f;
            padding: 40px 0 20px;
            margin-top: 60px;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 40px;
            margin-bottom: 30px;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h4 {
            color: #4da6ff;
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        friend-link {
            display: block;
            margin-bottom: 10px;
            color: #a3c8ff;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #2a4a75;
            color: #8a9bb2;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(10, 25, 47, 0.98);
                padding: 20px;
                border-top: 2px solid #1e3a5f;
                box-shadow: 0 10px 20px rgba(0,0,0,0.5);
            }
            .main-nav.active ul {
                display: flex;
            }
            .article h1 {
                font-size: 2.2rem;
            }
            .article h2 {
                font-size: 1.8rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-button {
                width: 100%;
            }
        }