:root {
            --primary: #1a5276;
            --accent: #e67e22;
            --accent-light: #f39c12;
            --dark: #2c3e50;
            --light: #f8f9fa;
            --white: #ffffff;
            --text: #333333;
            --border: #e0e0e0;
            --green: #27ae60;
            --shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, Arial, sans-serif;
            line-height: 1.75;
            color: var(--text);
            background: var(--light);
            overflow-x: hidden;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .top-bar {
            background: var(--primary);
            color: #fff;
            font-size: 13px;
            padding: 6px 0;
        }
        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .top-bar .social i {
            margin-left: 12px;
            font-size: 14px;
            cursor: pointer;
            transition: color .3s;
        }
        .top-bar .social i:hover {
            color: var(--accent-light);
        }
        .header {
            background: var(--white);
            padding: 18px 0;
            border-bottom: 3px solid var(--accent);
            position: sticky;
            top: 0;
            z-index: 999;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
        }
        .my-logo {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            text-decoration: none;
            letter-spacing: -1px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            color: var(--accent);
            font-size: 32px;
        }
        .my-logo span {
            color: var(--accent);
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 5px;
            flex-wrap: wrap;
        }
        .nav-list li a {
            text-decoration: none;
            color: var(--dark);
            padding: 8px 14px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 14px;
            transition: all .3s;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list li a:hover,
        .nav-list li a.active {
            background: var(--primary);
            color: #fff;
        }
        .hamburger {
            display: none;
            background: var(--primary);
            border: none;
            color: #fff;
            font-size: 24px;
            padding: 6px 12px;
            border-radius: 6px;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 12px 0;
            font-size: 14px;
            background: var(--white);
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb span {
            color: #999;
            margin: 0 6px;
        }
        .hero {
            background: linear-gradient(135deg, #1a5276 0%, #1e6b9b 50%, #2e86c1 100%);
            color: #fff;
            padding: 60px 20px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .hero::after {
            content: '';
            position: absolute;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
            top: -50px;
            right: -50px;
        }
        .hero h1 {
            font-size: 42px;
            font-weight: 800;
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .hero p {
            font-size: 18px;
            max-width: 700px;
            margin: 0 auto 20px;
            opacity: .9;
        }
        .hero .badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            padding: 40px 0;
        }
        .content-main {
            background: var(--white);
            padding: 40px;
            border-radius: 12px;
            box-shadow: var(--shadow);
        }
        .content-main img {
            max-width: 100%;
            border-radius: 10px;
            margin: 25px 0;
            width: 100%;
            height: auto;
        }
        .content-main h2 {
            font-size: 30px;
            color: var(--primary);
            margin: 40px 0 18px;
            padding-bottom: 10px;
            position: relative;
        }
        .content-main h2::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
        }
        .content-main h2 i {
            color: var(--accent);
            margin-right: 10px;
        }
        .content-main h3 {
            font-size: 23px;
            color: var(--dark);
            margin: 30px 0 12px;
        }
        .content-main h4 {
            font-size: 18px;
            color: var(--primary);
            margin: 20px 0 8px;
        }
        .content-main p {
            margin-bottom: 16px;
            text-align: justify;
        }
        .content-main ul,
        .content-main ol {
            margin: 0 0 20px 25px;
        }
        .content-main li {
            margin-bottom: 8px;
        }
        .content-main a {
            color: var(--accent);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 1px dashed var(--accent);
        }
        .content-main a:hover {
            color: var(--primary);
            border-bottom-style: solid;
        }
        .highlight-box {
            background: #fef9e7;
            border-left: 5px solid var(--accent);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .highlight-box strong {
            color: var(--accent);
        }
        .info-box {
            background: #eaf2f8;
            border-left: 5px solid var(--primary);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .info-box strong {
            color: var(--primary);
        }
        .table-responsive {
            overflow-x: auto;
            margin: 20px 0;
        }
        .table-responsive table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }
        .table-responsive th {
            background: var(--primary);
            color: #fff;
            padding: 12px;
            text-align: left;
        }
        .table-responsive td {
            padding: 10px;
            border-bottom: 1px solid var(--border);
        }
        .table-responsive tr:hover td {
            background: #f5f5f5;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }
        .sidebar-widget {
            background: var(--white);
            padding: 25px;
            border-radius: 12px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            font-size: 18px;
            color: var(--primary);
            margin-bottom: 15px;
            border-bottom: 2px solid var(--accent);
            padding-bottom: 8px;
        }
        .sidebar-widget ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-widget ul li {
            margin-bottom: 10px;
        }
        .sidebar-widget ul li a {
            color: var(--dark);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            padding: 6px 0;
            transition: all .3s;
            border-bottom: none;
        }
        .sidebar-widget ul li a:hover {
            color: var(--accent);
            padding-left: 5px;
        }
        .search-box {
            display: flex;
            gap: 0;
            margin-top: 5px;
        }
        .search-box input {
            flex: 1;
            padding: 10px 15px;
            border: 2px solid var(--border);
            border-radius: 30px 0 0 30px;
            font-size: 14px;
            outline: none;
        }
        .search-box input:focus {
            border-color: var(--primary);
        }
        .search-box button {
            background: var(--primary);
            border: none;
            color: #fff;
            padding: 0 20px;
            border-radius: 0 30px 30px 0;
            cursor: pointer;
            font-size: 16px;
            transition: background .3s;
        }
        .search-box button:hover {
            background: var(--accent);
        }
        .user-interaction {
            margin-top: 40px;
            padding-top: 30px;
            border-top: 2px solid var(--border);
        }
        .rating-area {
            background: #f8f9fa;
            padding: 20px;
            border-radius: 10px;
            margin-bottom: 25px;
            text-align: center;
        }
        .rating-area .stars {
            font-size: 28px;
            color: #ddd;
            cursor: pointer;
            display: inline-block;
        }
        .rating-area .stars i {
            margin-right: 5px;
            transition: color .2s, transform .2s;
        }
        .rating-area .stars i:hover {
            color: var(--accent);
            transform: scale(1.2);
        }
        .rating-area .stars i.active {
            color: var(--accent);
        }
        .rating-area p {
            margin-top: 10px;
            font-weight: 600;
            color: var(--primary);
        }
        .comment-form {
            margin-top: 20px;
        }
        .comment-form textarea {
            width: 100%;
            height: 120px;
            padding: 15px;
            border: 2px solid var(--border);
            border-radius: 10px;
            font-size: 14px;
            font-family: inherit;
            resize: vertical;
            outline: none;
        }
        .comment-form textarea:focus {
            border-color: var(--primary);
        }
        .comment-form .form-group {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
            margin-top: 15px;
        }
        .comment-form input {
            width: 100%;
            padding: 10px 15px;
            border: 2px solid var(--border);
            border-radius: 10px;
            font-size: 14px;
            outline: none;
        }
        .comment-form input:focus {
            border-color: var(--primary);
        }
        .comment-form button {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 30px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            margin-top: 15px;
            transition: all .3s;
        }
        .comment-form button:hover {
            background: var(--accent);
        }
        friend-link {
            display: block;
            margin-top: 30px;
            background: var(--white);
            padding: 25px;
            border-radius: 12px;
            box-shadow: var(--shadow);
        }
        friend-link a {
            color: var(--primary);
            text-decoration: none;
            margin: 0 10px 10px 0;
            display: inline-block;
            font-size: 14px;
            border-bottom: 1px solid transparent;
        }
        friend-link a:hover {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }
        .footer {
            background: var(--dark);
            color: #ccc;
            padding: 50px 0 0;
            margin-top: 40px;
        }
        .footer .container {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            padding-bottom: 30px;
        }
        .footer h4 {
            color: #fff;
            margin-bottom: 15px;
            font-size: 18px;
        }
        .footer a {
            color: #ccc;
            text-decoration: none;
        }
        .footer a:hover {
            color: var(--accent);
        }
        .footer .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            text-align: center;
            font-size: 14px;
        }
        @media (max-width: 1024px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            .sidebar {
                order: 2;
            }
        }
        @media (max-width: 768px) {
            .header .container {
                flex-wrap: wrap;
            }
            .nav-list {
                display: none;
                width: 100%;
                flex-direction: column;
                background: var(--white);
                border-top: 2px solid var(--accent);
                padding: 10px 0;
            }
            .nav-list.show {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero p {
                font-size: 16px;
            }
            .content-main {
                padding: 20px;
            }
            .content-main h2 {
                font-size: 24px;
            }
            .content-main h3 {
                font-size: 20px;
            }
            .footer .container {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .comment-form .form-group {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            .my-logo {
                font-size: 22px;
            }
            .hero {
                padding: 40px 15px;
            }
            .hero h1 {
                font-size: 24px;
            }
            .breadcrumb {
                font-size: 12px;
            }
        }
        .timeline {
            position: relative;
            padding: 20px 0;
            margin: 20px 0;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 20px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--border);
        }
        .timeline-item {
            position: relative;
            padding-left: 60px;
            margin-bottom: 25px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: 12px;
            top: 5px;
            width: 16px;
            height: 16px;
            background: var(--accent);
            border-radius: 50%;
            border: 3px solid #fff;
            box-shadow: 0 0 0 2px var(--accent);
        }
        .timeline-item h4 {
            margin-bottom: 5px;
        }
        .timeline-item .time {
            font-size: 12px;
            color: #888;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin: 25px 0;
        }
        .stat-card {
            background: #f8f9fa;
            border-radius: 12px;
            padding: 20px;
            text-align: center;
            border: 1px solid var(--border);
        }
        .stat-card .number {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
        }
        .stat-card .label {
            font-size: 13px;
            color: #666;
            margin-top: 5px;
        }
        @media (max-width: 600px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: 10px;
            margin-bottom: 15px;
            overflow: hidden;
        }
        .faq-item summary {
            padding: 15px 20px;
            font-weight: 600;
            cursor: pointer;
            background: #f8f9fa;
            outline: none;
            transition: background .3s;
        }
        .faq-item summary:hover {
            background: #e9ecef;
        }
        .faq-item p {
            padding: 15px 20px;
            margin: 0;
            background: #fff;
        }