:root {
            --primary: #003c71;
            --secondary: #b9975c;
            --accent: #e4002b;
            --bg: #f8f7f4;
            --text: #222222;
            --muted: #555555;
            --light: #ffffff;
            --border: #e2e0dc;
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            --radius: 10px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text);
            background: var(--bg);
            line-height: 1.75;
            font-size: 16px;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--accent);
        }
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: var(--primary);
            color: #fff;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 14px 20px;
            max-width: 1240px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 1px;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo span {
            color: var(--secondary);
        }
        .site-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 4px 16px;
        }
        .site-nav a {
            color: rgba(255, 255, 255, 0.9);
            font-size: 14px;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 20px;
            transition: background 0.2s;
        }
        .site-nav a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 24px;
            cursor: pointer;
            padding: 6px;
        }
        .breadcrumb {
            background: #f1efec;
            padding: 10px 0;
            font-size: 14px;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb .container {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .breadcrumb a {
            color: var(--muted);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: #bbb;
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 600;
        }
        .page-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 32px;
            padding: 32px 20px;
            max-width: 1240px;
            margin: 0 auto;
        }
        @media (max-width: 992px) {
            .page-layout {
                grid-template-columns: 1fr;
            }
        }
        .article-wrap {
            background: var(--light);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 36px 40px;
        }
        @media (max-width: 768px) {
            .article-wrap {
                padding: 20px 18px;
            }
        }
        .article-wrap h1 {
            font-size: 36px;
            line-height: 1.3;
            margin-bottom: 10px;
            color: var(--primary);
        }
        .article-wrap h2 {
            font-size: 28px;
            margin-top: 48px;
            margin-bottom: 16px;
            color: var(--primary);
            border-bottom: 3px solid var(--secondary);
            padding-bottom: 8px;
        }
        .article-wrap h3 {
            font-size: 22px;
            margin-top: 30px;
            margin-bottom: 10px;
            color: #333;
        }
        .article-wrap h4 {
            font-size: 18px;
            margin-top: 20px;
            margin-bottom: 8px;
            color: #444;
        }
        .article-wrap p {
            margin-bottom: 16px;
            text-align: justify;
        }
        .article-wrap ul,
        .article-wrap ol {
            margin: 16px 0 16px 24px;
        }
        .article-wrap li {
            margin-bottom: 8px;
        }
        .meta-line {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 24px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border);
        }
        .meta-line i {
            margin-right: 6px;
        }
        img.feature-img {
            width: 100%;
            border-radius: var(--radius);
            margin: 24px 0;
            box-shadow: var(--shadow);
        }
        .img-cap {
            font-size: 13px;
            color: var(--muted);
            text-align: center;
            margin-top: -12px;
            margin-bottom: 24px;
        }
        .tip-box {
            background: #f0f7ff;
            border-left: 5px solid var(--primary);
            padding: 18px 22px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 24px 0;
        }
        .alert-box {
            background: #fff7e6;
            border-left: 5px solid #f0a500;
            padding: 18px 22px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 24px 0;
        }
        .policy-table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0 24px;
            font-size: 15px;
        }
        .policy-table th {
            background: var(--primary);
            color: #fff;
            padding: 12px 14px;
            text-align: left;
        }
        .policy-table td {
            padding: 10px 14px;
            border-bottom: 1px solid var(--border);
        }
        .policy-table tr:nth-child(even) {
            background: #faf9f7;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .side-card {
            background: var(--light);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 22px;
        }
        .side-card h3 {
            font-size: 18px;
            margin-bottom: 14px;
            color: var(--primary);
            border-bottom: 2px solid var(--secondary);
            padding-bottom: 6px;
        }
        .side-card ul {
            list-style: none;
            padding: 0;
        }
        .side-card li {
            margin-bottom: 10px;
            font-size: 14px;
        }
        .side-card li a {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .side-card li a::before {
            content: "\f105";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 12px;
            color: var(--secondary);
        }
        .search-form {
            display: flex;
            gap: 8px;
        }
        .search-form input[type="text"] {
            flex: 1;
            padding: 10px 14px;
            border: 2px solid var(--border);
            border-radius: 24px;
            font-size: 14px;
            outline: none;
            transition: border-color 0.2s;
        }
        .search-form input[type="text"]:focus {
            border-color: var(--primary);
        }
        .search-form button {
            padding: 10px 18px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 24px;
            font-size: 14px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .search-form button:hover {
            background: #005a8d;
        }
        .comment-section {
            background: var(--light);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 30px;
            margin-top: 32px;
        }
        .comment-section h2 {
            font-size: 24px;
            color: var(--primary);
            margin-bottom: 16px;
            border-bottom: 2px solid var(--secondary);
            padding-bottom: 8px;
        }
        .comment-form textarea {
            width: 100%;
            padding: 14px;
            border: 2px solid var(--border);
            border-radius: 8px;
            font-size: 15px;
            font-family: inherit;
            resize: vertical;
            min-height: 120px;
            margin-bottom: 12px;
        }
        .comment-form input[type="text"] {
            width: 100%;
            padding: 10px 14px;
            border: 2px solid var(--border);
            border-radius: 8px;
            font-size: 14px;
            margin-bottom: 12px;
        }
        .comment-form button {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: 24px;
            font-size: 15px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .comment-form button:hover {
            background: #005a8d;
        }
        .rating-form {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 12px;
        }
        .star-rating {
            display: flex;
            gap: 4px;
            font-size: 22px;
            color: #ccc;
        }
        .star-rating i {
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating i.active,
        .star-rating i:hover {
            color: #f5b301;
        }
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.9);
            padding: 40px 20px 20px;
            margin-top: 40px;
        }
        .footer-inner {
            max-width: 1240px;
            margin: 0 auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 32px;
            margin-bottom: 28px;
        }
        .site-footer h4 {
            color: #fff;
            font-size: 17px;
            margin-bottom: 14px;
            border-bottom: 2px solid var(--secondary);
            padding-bottom: 6px;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.8);
        }
        .site-footer a:hover {
            color: var(--secondary);
        }
        .friend-link {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            margin-bottom: 20px;
        }
        .friend-link a {
            background: rgba(255, 255, 255, 0.1);
            padding: 6px 14px;
            border-radius: 18px;
            font-size: 14px;
        }
        .friend-link a:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        .copyright {
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 18px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
        }
        @media (max-width: 768px) {
            .site-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 4px;
                padding: 12px 0;
            }
            .site-nav.open {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .article-wrap h1 {
                font-size: 28px;
            }
            .article-wrap h2 {
                font-size: 22px;
            }
            .article-wrap h3 {
                font-size: 19px;
            }
        }
        @media (min-width: 769px) {
            .site-nav {
                display: flex !important;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: var(--primary);
            color: #fff;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
            cursor: pointer;
            border: none;
            z-index: 999;
            transition: opacity 0.3s;
        }
        .scroll-top:hover {
            opacity: 0.85;
        }
        .scroll-top.hide {
            opacity: 0;
            pointer-events: none;
        }