*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
            background: #f4f7fb;
            color: #1e293b;
            line-height: 1.75;
            font-size: 1.0625rem;
            padding: 0;
            margin: 0;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #2563eb;
            text-decoration: none;
            transition: color .2s, border-color .2s;
        }
        a:hover,
        a:focus-visible {
            color: #1e40af;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1.25rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #0f172a;
            margin-top: 0;
            margin-bottom: 0.75rem;
        }
        h1 {
            font-size: 2.25rem;
            margin-bottom: 1.25rem;
        }
        h2 {
            font-size: 1.75rem;
            border-bottom: 3px solid #2563eb;
            padding-bottom: 0.45rem;
            margin-top: 2.5rem;
            margin-bottom: 1.25rem;
        }
        h3 {
            font-size: 1.375rem;
            margin-top: 1.75rem;
            margin-bottom: 0.75rem;
        }
        h4 {
            font-size: 1.15rem;
            margin-top: 1.25rem;
            margin-bottom: 0.5rem;
            color: #1e293b;
        }
        p {
            margin-bottom: 1.25rem;
            font-size: 1.0625rem;
        }
        strong {
            color: #0f172a;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
            width: 100%;
        }
        .skip-link {
            position: absolute;
            top: -100%;
            left: 1rem;
            background: #2563eb;
            color: #fff;
            padding: 0.75rem 1.5rem;
            border-radius: 0 0 8px 8px;
            z-index: 9999;
            font-weight: 600;
        }
        .skip-link:focus {
            top: 0;
        }
        .site-header {
            background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
            color: #fff;
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.75rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: opacity .2s;
        }
        .my-logo:hover {
            opacity: 0.88;
            text-decoration: none;
        }
        .my-logo i {
            color: #facc15;
            font-size: 2rem;
        }
        .my-logo span {
            background: linear-gradient(90deg, #facc15, #fbbf24);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.75rem;
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            border-radius: 8px;
            transition: background .2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: wrap;
        }
        .nav-menu a {
            color: #e2e8f0;
            padding: 0.5rem 1rem;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.95rem;
            transition: background .2s, color .2s;
            white-space: nowrap;
        }
        .nav-menu a:hover,
        .nav-menu a:focus-visible {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            text-decoration: none;
        }
        .nav-menu a.active {
            background: rgba(255, 255, 255, 0.15);
            color: #facc15;
        }
        .breadcrumb {
            background: #fff;
            padding: 0.75rem 0;
            border-bottom: 1px solid #e2e8f0;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.35rem 0.5rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.5rem;
            color: #94a3b8;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #2563eb;
        }
        .breadcrumb .current {
            color: #64748b;
            font-weight: 500;
        }
        .hero {
            background: linear-gradient(135deg, #1e3a5f 0%, #0f172a 100%);
            color: #fff;
            padding: 3rem 0 2.5rem;
            margin-bottom: 2rem;
            border-radius: 0 0 32px 32px;
        }
        .hero h1 {
            color: #fff;
            font-size: 2.5rem;
            margin-bottom: 0.75rem;
        }
        .hero p {
            font-size: 1.2rem;
            color: #cbd5e1;
            max-width: 720px;
        }
        .hero .meta-badge {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem 2rem;
            margin-top: 1.25rem;
            font-size: 0.95rem;
            color: #94a3b8;
        }
        .hero .meta-badge i {
            color: #facc15;
            margin-right: 0.4rem;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: 2.5rem;
            padding-bottom: 3rem;
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 6rem;
            align-self: start;
        }
        .widget {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            border: 1px solid #e2e8f0;
        }
        .widget h3 {
            font-size: 1.2rem;
            margin-top: 0;
            margin-bottom: 1rem;
            border-bottom: 2px solid #e2e8f0;
            padding-bottom: 0.5rem;
        }
        .widget ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .widget ul li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f1f5f9;
        }
        .widget ul li:last-child {
            border-bottom: none;
        }
        .widget ul li a {
            font-weight: 500;
        }
        .search-form {
            display: flex;
            gap: 0.5rem;
            background: #fff;
            border-radius: 60px;
            border: 2px solid #e2e8f0;
            padding: 0.25rem 0.25rem 0.25rem 1.25rem;
            transition: border-color .2s, box-shadow .2s;
            max-width: 500px;
        }
        .search-form:focus-within {
            border-color: #2563eb;
            box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
        }
        .search-form input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 0.6rem 0;
            font-size: 1rem;
            outline: none;
            color: #1e293b;
            min-width: 0;
        }
        .search-form button {
            background: #2563eb;
            border: none;
            color: #fff;
            padding: 0.6rem 1.5rem;
            border-radius: 60px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background .2s, transform .1s;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .search-form button:hover {
            background: #1e40af;
            transform: scale(0.97);
        }
        .form-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.75rem;
            margin-top: 2rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            border: 1px solid #e2e8f0;
        }
        .form-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .form-card form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-card label {
            font-weight: 600;
            font-size: 0.95rem;
            color: #1e293b;
        }
        .form-card input,
        .form-card textarea,
        .form-card select {
            padding: 0.7rem 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            transition: border-color .2s, box-shadow .2s;
            background: #fafbfc;
            width: 100%;
        }
        .form-card input:focus,
        .form-card textarea:focus,
        .form-card select:focus {
            border-color: #2563eb;
            box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
            outline: none;
            background: #fff;
        }
        .form-card textarea {
            resize: vertical;
            min-height: 110px;
        }
        .form-card .btn-primary {
            background: #2563eb;
            border: none;
            color: #fff;
            padding: 0.8rem 2rem;
            border-radius: 60px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: background .2s, transform .1s;
            align-self: flex-start;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .form-card .btn-primary:hover {
            background: #1e40af;
            transform: scale(0.97);
        }
        .rating-stars {
            display: flex;
            gap: 0.4rem;
            font-size: 1.8rem;
            color: #d1d5db;
            cursor: pointer;
            transition: color .2s;
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #facc15;
        }
        .rating-stars i {
            transition: color .2s, transform .15s;
        }
        .rating-stars i:hover {
            transform: scale(1.15);
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
            border-radius: 12px;
            border: 1px solid #e2e8f0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 0.85rem 1rem;
            text-align: left;
            border-bottom: 1px solid #e2e8f0;
        }
        th {
            background: #f1f5f9;
            font-weight: 700;
            color: #0f172a;
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:hover td {
            background: #f8fafc;
        }
        .featured-image {
            margin: 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .featured-image figcaption {
            background: #f1f5f9;
            padding: 0.75rem 1.25rem;
            font-size: 0.9rem;
            color: #475569;
            text-align: center;
        }
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 2.5rem 0 1.5rem;
            margin-top: auto;
            border-top: 4px solid #2563eb;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .site-footer h4 {
            color: #fff;
            margin-top: 0;
            font-size: 1.1rem;
            border-bottom: 2px solid #1e3a5f;
            padding-bottom: 0.5rem;
        }
        .site-footer a {
            color: #94a3b8;
            font-size: 0.95rem;
        }
        .site-footer a:hover {
            color: #facc15;
            text-decoration: none;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            padding: 0.3rem 0;
        }
        friend-link {
            display: block;
            padding: 1rem 0;
            border-top: 1px solid #1e3a5f;
            margin-top: 1rem;
            font-size: 0.95rem;
        }
        friend-link a {
            color: #94a3b8;
            margin: 0 0.75rem 0 0;
        }
        friend-link a:hover {
            color: #facc15;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #1e3a5f;
            font-size: 0.9rem;
            color: #64748b;
        }
        @media (max-width: 1024px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .main-content {
                order: 1;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0f172a;
                padding: 0.75rem 0;
                border-radius: 12px;
                margin-top: 0.5rem;
                gap: 0;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 0.75rem 1.25rem;
                border-radius: 0;
                width: 100%;
                border-bottom: 1px solid #1e3a5f;
            }
            .nav-menu a:last-child {
                border-bottom: none;
            }
            .header-inner {
                align-items: center;
            }
            .hero h1 {
                font-size: 1.75rem;
            }
            .hero p {
                font-size: 1rem;
            }
            h1 {
                font-size: 1.75rem;
            }
            h2 {
                font-size: 1.45rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .search-form {
                flex-direction: column;
                border-radius: 16px;
                padding: 0.75rem;
                background: #fff;
            }
            .search-form input {
                width: 100%;
                padding: 0.6rem 0.75rem;
                border-radius: 60px;
                background: #f1f5f9;
            }
            .search-form button {
                width: 100%;
                justify-content: center;
            }
            .form-card .btn-primary {
                width: 100%;
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .my-logo {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 1rem;
            }
            .hero {
                padding: 2rem 0 1.5rem;
            }
            .hero h1 {
                font-size: 1.5rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
            .widget {
                padding: 1rem;
            }
            .form-card {
                padding: 1.25rem;
            }
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }
        .text-muted {
            color: #64748b;
            font-size: 0.95rem;
        }
        .flex-between {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.75rem;
        }
        .gap-1 {
            gap: 1rem;
        }
        .anchor-offset {
            scroll-margin-top: 5.5rem;
        }
        .highlight-box {
            background: #fef9e7;
            border-left: 5px solid #facc15;
            padding: 1.25rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .tip-box {
            background: #ecfdf5;
            border-left: 5px solid #10b981;
            padding: 1.25rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }