*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f5f7fa;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #0056b3;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover,
        a:focus {
            color: #d4a017;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            border-radius: 24px;
            padding: 1.5rem 2rem 2rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: #0b1e33;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.4rem;
            border-left: 6px solid #d4a017;
            padding-left: 1rem;
        }
        h2 {
            font-size: 1.8rem;
            border-bottom: 2px solid #eaeef3;
            padding-bottom: 0.3rem;
        }
        h3 {
            font-size: 1.35rem;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #2c3e50;
        }
        p {
            margin-bottom: 1rem;
        }
        .lead {
            font-size: 1.15rem;
            color: #2c3e50;
            font-weight: 400;
            background: #f0f4f9;
            padding: 1.2rem 1.5rem;
            border-radius: 16px;
            border-left: 4px solid #d4a017;
        }
        header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 0.8rem 0 1rem;
            border-bottom: 1px solid #e2e8f0;
            position: relative;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #0b1e33;
            background: linear-gradient(145deg, #1a2a3a, #0b1e33);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i {
            -webkit-text-fill-color: #d4a017;
            font-size: 1.8rem;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            -webkit-text-fill-color: #4a5a6a;
            display: block;
            letter-spacing: 0.3px;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            flex-wrap: wrap;
        }
        nav a {
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.4rem 0.6rem;
            border-radius: 8px;
            color: #1a2a3a;
            transition: background 0.2s, color 0.2s;
        }
        nav a:hover {
            background: #d4a01718;
            color: #d4a017;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #0b1e33;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            font-size: 0.85rem;
            padding: 0.6rem 0 0.2rem;
            margin-bottom: 0.8rem;
            color: #5a6a7a;
        }
        .breadcrumb li+li::before {
            content: "›";
            padding: 0 0.6rem;
            color: #aab;
        }
        .breadcrumb a {
            color: #2c6b9e;
        }
        .breadcrumb a:hover {
            color: #d4a017;
        }
        .search-form {
            display: flex;
            gap: 0.4rem;
            max-width: 480px;
            margin: 1.2rem 0 1.6rem;
            background: #f0f4f9;
            border-radius: 40px;
            padding: 0.2rem 0.2rem 0.2rem 1.2rem;
            border: 1px solid #dce3ec;
            transition: box-shadow 0.25s;
        }
        .search-form:focus-within {
            box-shadow: 0 0 0 3px #d4a01744;
            border-color: #d4a017;
        }
        .search-form input[type="text"] {
            flex: 1;
            border: none;
            background: transparent;
            padding: 0.7rem 0.2rem;
            font-size: 0.95rem;
            outline: none;
            color: #1a2a3a;
        }
        .search-form button {
            background: #d4a017;
            border: none;
            border-radius: 40px;
            padding: 0.6rem 1.4rem;
            font-weight: 600;
            color: #fff;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .search-form button:hover {
            background: #b8890e;
            transform: scale(1.02);
        }
        .interaction-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem 2rem;
            align-items: center;
            background: #f8fafc;
            padding: 1rem 1.5rem;
            border-radius: 20px;
            margin: 2rem 0 1.2rem;
            border: 1px solid #e8edf4;
        }
        .star-rating {
            display: flex;
            gap: 0.3rem;
            align-items: center;
        }
        .star-rating i {
            font-size: 1.5rem;
            color: #dddddd;
            cursor: pointer;
            transition: color 0.15s, transform 0.1s;
        }
        .star-rating i.checked,
        .star-rating i:hover {
            color: #f5b342;
        }
        .star-rating i:hover {
            transform: scale(1.15);
        }
        .rating-score {
            font-weight: 700;
            color: #1a2a3a;
            margin-left: 0.4rem;
            font-size: 1.1rem;
        }
        .comment-form {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            flex: 1;
            min-width: 200px;
        }
        .comment-form input,
        .comment-form textarea {
            border: 1px solid #dce3ec;
            border-radius: 12px;
            padding: 0.6rem 1rem;
            font-size: 0.9rem;
            flex: 1 1 160px;
            background: #fff;
            transition: border-color 0.2s;
        }
        .comment-form textarea {
            flex-basis: 100%;
            min-height: 56px;
            resize: vertical;
        }
        .comment-form input:focus,
        .comment-form textarea:focus {
            border-color: #d4a017;
            outline: none;
            box-shadow: 0 0 0 2px #d4a01722;
        }
        .comment-form button {
            background: #0b1e33;
            color: #fff;
            border: none;
            border-radius: 40px;
            padding: 0.5rem 1.5rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
        }
        .comment-form button:hover {
            background: #d4a017;
        }
        article {
            margin: 1.6rem 0 2rem;
        }
        article p,
        article li {
            font-size: 1.02rem;
            color: #1e2a3a;
        }
        article ul,
        article ol {
            padding-left: 1.4rem;
            margin-bottom: 1.2rem;
        }
        article li {
            margin-bottom: 0.3rem;
        }
        .feature-img {
            margin: 1.8rem 0;
            border-radius: 16px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }
        .insight-box {
            background: #f0f6fe;
            border-left: 6px solid #d4a017;
            padding: 1.2rem 1.6rem;
            border-radius: 0 16px 16px 0;
            margin: 1.6rem 0;
        }
        .insight-box strong {
            color: #0b1e33;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.6rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 0.7rem 1rem;
            text-align: left;
            border-bottom: 1px solid #e2e8f0;
        }
        th {
            background: #0b1e33;
            color: #fff;
            font-weight: 600;
        }
        tr:nth-child(even) {
            background: #f8fafc;
        }
        friend-link {
            display: block;
            padding: 1.2rem 0 0.6rem;
            border-top: 2px solid #e2e8f0;
            margin-top: 2rem;
            font-size: 0.95rem;
        }
        friend-link a {
            display: inline-block;
            margin: 0.2rem 1rem 0.2rem 0;
            padding: 0.2rem 0.6rem;
            background: #f0f4f9;
            border-radius: 30px;
            font-weight: 500;
            transition: background 0.2s;
        }
        friend-link a:hover {
            background: #d4a01722;
            text-decoration: none;
        }
        footer {
            text-align: center;
            padding: 1.5rem 0 0.6rem;
            font-size: 0.85rem;
            color: #4a5a6a;
            border-top: 1px solid #e2e8f0;
            margin-top: 1.5rem;
        }
        footer .copyright {
            font-weight: 400;
            letter-spacing: 0.3px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0.8rem 1rem 1.2rem;
            }
            h1 {
                font-size: 1.7rem;
                padding-left: 0.6rem;
            }
            h2 {
                font-size: 1.35rem;
            }
            h3 {
                font-size: 1.1rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .my-logo small {
                font-size: 0.6rem;
            }
            .hamburger {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0.4rem;
                padding: 1rem 0 0.6rem;
                background: #fff;
                border-top: 1px solid #e2e8f0;
                margin-top: 0.6rem;
            }
            #nav-toggle:checked~.hamburger~nav,
            #nav-toggle:checked~nav {
                display: flex;
            }
            nav a {
                padding: 0.6rem 0.8rem;
                border-radius: 10px;
                width: 100%;
            }
            .search-form {
                flex-wrap: wrap;
                padding: 0.4rem 0.6rem;
            }
            .search-form button {
                width: 100%;
                justify-content: center;
                padding: 0.6rem;
            }
            .interaction-bar {
                flex-direction: column;
                align-items: stretch;
                gap: 1rem;
                padding: 1rem;
            }
            .star-rating {
                justify-content: center;
            }
            .comment-form button {
                width: 100%;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
            table {
                font-size: 0.8rem;
            }
            th,
            td {
                padding: 0.4rem 0.5rem;
            }
            .lead {
                font-size: 1rem;
                padding: 1rem;
            }
            .insight-box {
                padding: 0.8rem 1rem;
            }
        }
        @media (min-width: 769px) {
            #nav-toggle,
            .hamburger {
                display: none;
            }
            nav {
                display: flex !important;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0.5rem 0.6rem 1rem;
            }
            h1 {
                font-size: 1.4rem;
            }
            h2 {
                font-size: 1.15rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
        }
        .text-muted {
            color: #5a6a7a;
        }
        .mb-1 {
            margin-bottom: 0.6rem;
        }
        .mt-2 {
            margin-top: 1.4rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-wrap: wrap;
        }
        .last-updated {
            font-size: 0.8rem;
            color: #6a7a8a;
            background: #f0f4f9;
            display: inline-block;
            padding: 0.2rem 1rem;
            border-radius: 30px;
            margin-bottom: 1rem;
        }
        .fa,
        .fas,
        .far,
        .fab {
            font-family: 'Font Awesome 6 Free', 'Font Awesome 6 Brands';
        }