* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #f4f7fc;
            color: #1e2a3a;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            text-decoration: none;
            color: #0056b3;
            transition: color 0.2s;
        }
        a:hover {
            color: #ff6b00;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .header {
            background: linear-gradient(135deg, #0b1a2e, #1a3a5c);
            color: #fff;
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #ffcc00;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 8px rgba(255, 204, 0, 0.3);
        }
        .my-logo:hover {
            color: #ffe44d;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px 10px;
        }
        .nav-menu {
            display: flex;
            gap: 25px;
            align-items: center;
            list-style: none;
        }
        .nav-menu li a {
            color: #e0edff;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
        }
        .nav-menu li a:hover {
            color: #ffcc00;
            border-bottom-color: #ffcc00;
        }
        .breadcrumb {
            background: #e9edf4;
            padding: 10px 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #d0d8e4;
        }
        .breadcrumb .container {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .breadcrumb a {
            color: #2c3e6b;
        }
        .breadcrumb a:hover {
            color: #ff6b00;
        }
        .breadcrumb span {
            color: #6a7a94;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 35px;
            padding: 35px 0;
        }
        .content-area {
            background: #fff;
            border-radius: 16px;
            padding: 35px 30px;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 22px 20px;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-bottom: 15px;
            color: #0b1a2e;
            border-left: 4px solid #ffcc00;
            padding-left: 12px;
        }
        .sidebar-card ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .sidebar-card ul li a {
            color: #1e3a6b;
            font-size: 0.95rem;
            display: block;
            padding: 6px 0;
            border-bottom: 1px dashed #e0e6ef;
        }
        .sidebar-card ul li a:hover {
            color: #ff6b00;
            padding-left: 5px;
        }
        .content-area h1 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #0b1a2e;
            line-height: 1.2;
            margin-bottom: 12px;
        }
        .content-area .last-updated {
            color: #7a8aa0;
            font-size: 0.9rem;
            margin-bottom: 20px;
            display: block;
        }
        .content-area h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: #0b1a2e;
            margin-top: 40px;
            margin-bottom: 16px;
            border-bottom: 3px solid #ffcc00;
            padding-bottom: 8px;
        }
        .content-area h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: #1a3a5c;
            margin-top: 30px;
            margin-bottom: 12px;
        }
        .content-area h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #2c4a6e;
            margin-top: 22px;
            margin-bottom: 8px;
        }
        .content-area p {
            margin-bottom: 18px;
            color: #2d3a4e;
            font-size: 1.02rem;
        }
        .content-area ul,
        .content-area ol {
            margin-bottom: 20px;
            padding-left: 25px;
            color: #2d3a4e;
        }
        .content-area li {
            margin-bottom: 8px;
        }
        .content-area img {
            max-width: 100%;
            height: auto;
            border-radius: 14px;
            margin: 25px 0;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
        }
        .feature-box {
            background: #f0f5fe;
            border-left: 5px solid #ff6b00;
            padding: 18px 22px;
            border-radius: 10px;
            margin: 25px 0;
        }
        .feature-box strong {
            color: #0b1a2e;
        }
        .highlight-yellow {
            background: #fff9e0;
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 600;
        }
        .search-form {
            display: flex;
            gap: 10px;
            margin: 25px 0;
            flex-wrap: wrap;
        }
        .search-form input {
            flex: 1;
            min-width: 180px;
            padding: 14px 18px;
            border: 2px solid #d0d8e4;
            border-radius: 10px;
            font-size: 1rem;
            outline: none;
            transition: 0.2s;
        }
        .search-form input:focus {
            border-color: #ff6b00;
            box-shadow: 0 0 0 3px rgba(255, 107, 0, 0.1);
        }
        .search-form button {
            padding: 14px 30px;
            background: #ff6b00;
            color: #fff;
            border: none;
            border-radius: 10px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.2s;
        }
        .search-form button:hover {
            background: #e05a00;
            transform: translateY(-2px);
        }
        .comment-section,
        .rating-section {
            background: #f8faff;
            border-radius: 14px;
            padding: 25px;
            margin-top: 35px;
            border: 1px solid #e0e8f2;
        }
        .comment-section h3,
        .rating-section h3 {
            font-size: 1.3rem;
            margin-bottom: 18px;
            color: #0b1a2e;
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 14px 16px;
            border: 2px solid #d0d8e4;
            border-radius: 10px;
            font-size: 1rem;
            margin-bottom: 14px;
            outline: none;
            font-family: inherit;
            transition: 0.2s;
        }
        .comment-form textarea:focus,
        .comment-form input:focus {
            border-color: #ff6b00;
        }
        .comment-form textarea {
            min-height: 110px;
            resize: vertical;
        }
        .comment-form .form-row {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .comment-form .form-row input {
            flex: 1;
            min-width: 150px;
        }
        .comment-form button {
            padding: 14px 36px;
            background: #0056b3;
            color: #fff;
            border: none;
            border-radius: 10px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.2s;
        }
        .comment-form button:hover {
            background: #003d82;
            transform: translateY(-2px);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 5px;
            margin-bottom: 16px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #d0d8e4;
            cursor: pointer;
            transition: 0.15s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #ffb800;
        }
        .rating-section button {
            padding: 12px 34px;
            background: #ff6b00;
            color: #fff;
            border: none;
            border-radius: 10px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.2s;
        }
        .rating-section button:hover {
            background: #e05a00;
            transform: translateY(-2px);
        }
        .footer {
            background: #0b1a2e;
            color: #c8d6e8;
            padding: 40px 0 25px;
            margin-top: 30px;
        }
        .footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 35px;
        }
        .footer h4 {
            color: #ffcc00;
            font-size: 1.1rem;
            margin-bottom: 16px;
        }
        .footer a {
            color: #9ab0cc;
            display: block;
            margin-bottom: 8px;
            font-size: 0.95rem;
        }
        .footer a:hover {
            color: #ffcc00;
        }
        .friend-link {
            display: block;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid #1e3a5c;
            font-size: 0.95rem;
        }
        .friend-link a {
            display: inline-block;
            margin-right: 20px;
            margin-bottom: 8px;
        }
        .copyright {
            text-align: center;
            padding-top: 25px;
            margin-top: 25px;
            border-top: 1px solid #1e3a5c;
            font-size: 0.9rem;
            color: #7a94b0;
            grid-column: 1 / -1;
        }
        @media (max-width: 1024px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0b1a2e;
                padding: 20px 0;
                gap: 12px;
                margin-top: 12px;
                border-top: 1px solid #1e3a5c;
            }
            .nav-menu.active {
                display: flex;
            }
            .header .container {
                position: relative;
            }
            .content-area {
                padding: 22px 16px;
            }
            .content-area h1 {
                font-size: 1.6rem;
            }
            .content-area h2 {
                font-size: 1.3rem;
            }
            .content-area h3 {
                font-size: 1.1rem;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .footer .container {
                grid-template-columns: 1fr;
                gap: 25px;
            }
            .search-form button {
                width: 100%;
            }
            .comment-form .form-row {
                flex-direction: column;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .content-area h1 {
                font-size: 1.3rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
        }
        .text-muted {
            color: #7a8aa0;
        }
        .mt-20 {
            margin-top: 20px;
        }
        .mb-10 {
            margin-bottom: 10px;
        }
        .flex-between {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 25px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            border-radius: 10px;
            overflow: hidden;
        }
        table th {
            background: #0b1a2e;
            color: #ffcc00;
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
        }
        table td {
            padding: 11px 16px;
            border-bottom: 1px solid #e0e6ef;
        }
        table tr:nth-child(even) {
            background: #f6f9ff;
        }
        table tr:hover {
            background: #eef4fe;
        }
        .btn-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #ff6b00;
            color: #fff;
            border: none;
            border-radius: 50%;
            width: 50px;
            height: 50px;
            font-size: 1.4rem;
            cursor: pointer;
            box-shadow: 0 4px 16px rgba(255, 107, 0, 0.3);
            transition: 0.2s;
            z-index: 999;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .btn-top:hover {
            background: #e05a00;
            transform: translateY(-3px);
        }