*,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', 'Roboto', system-ui, -apple-system, sans-serif;
            background: #f5f7fb;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #2b6cb0;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #1a365d;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .skip-link {
            position: absolute;
            top: -100px;
            left: 0;
            background: #1a1a2e;
            color: #fff;
            padding: 0.6rem 1.2rem;
            z-index: 1000;
            transition: top 0.2s;
        }
        .skip-link:focus {
            top: 0;
        }
        header[role="banner"] {
            background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
            color: #fff;
            padding: 0.8rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #f7971e, #ffd200);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: none;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #ffd200;
            font-size: 1.4rem;
        }
        .my-logo:hover {
            opacity: 0.92;
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.7rem;
            -webkit-text-fill-color: initial;
            color: #aaa;
            font-weight: 400;
            letter-spacing: 0.3px;
        }
        nav[aria-label="Main navigation"] {
            display: flex;
            align-items: center;
            gap: 0.2rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 0.1rem;
            padding: 0;
            margin: 0;
        }
        .nav-list li a {
            display: block;
            padding: 0.5rem 0.9rem;
            color: #eee;
            font-size: 0.92rem;
            font-weight: 500;
            border-radius: 6px;
            transition: background 0.2s, color 0.2s;
        }
        .nav-list li a:hover,
        .nav-list li a:focus {
            background: rgba(255, 255, 255, 0.15);
            color: #ffd200;
            text-decoration: none;
        }
        .nav-list li a.active {
            background: rgba(255, 210, 0, 0.18);
            color: #ffd200;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.3rem 0.6rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb-nav {
            background: #e8ecf4;
            padding: 0.5rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #d0d7e5;
        }
        .breadcrumb-nav ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.1rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb-nav li+li::before {
            content: "›";
            margin: 0 0.4rem;
            color: #7a7a9a;
        }
        .breadcrumb-nav a {
            color: #2b6cb0;
        }
        .breadcrumb-nav .current {
            color: #1a1a2e;
            font-weight: 600;
        }
        main {
            padding: 2rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media (max-width: 920px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .sidebar {
            position: sticky;
            top: 5.5rem;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 14px;
            padding: 1.4rem;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            margin-bottom: 1.6rem;
        }
        .sidebar-card h3 {
            font-size: 1.05rem;
            margin-bottom: 0.8rem;
            border-bottom: 2px solid #f0f2f7;
            padding-bottom: 0.5rem;
            color: #1a1a2e;
        }
        .sidebar-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-links li {
            margin-bottom: 0.4rem;
        }
        .sidebar-links a {
            display: block;
            padding: 0.4rem 0.6rem;
            border-radius: 6px;
            font-size: 0.9rem;
            transition: background 0.15s;
        }
        .sidebar-links a:hover {
            background: #f0f2f7;
            text-decoration: none;
        }
        h1 {
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 0.8rem;
            color: #0f0c29;
        }
        h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-top: 2.8rem;
            margin-bottom: 1rem;
            color: #1a1a2e;
            border-left: 5px solid #f7971e;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.3rem;
            font-weight: 600;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
            color: #2d2d4a;
        }
        h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-top: 1.2rem;
            margin-bottom: 0.4rem;
            color: #3d3d5c;
        }
        p {
            margin-bottom: 1.1rem;
            color: #2d2d44;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 400;
            color: #3d3d5c;
            line-height: 1.8;
        }
        strong {
            color: #0f0c29;
        }
        .highlight-box {
            background: #fef9e7;
            border-left: 4px solid #f7971e;
            padding: 1.2rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.6rem 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .featured-image {
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.10);
            margin: 2rem 0;
            background: #eef1f8;
        }
        .featured-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 16/9;
        }
        .featured-image figcaption {
            padding: 0.8rem 1.2rem;
            font-size: 0.88rem;
            color: #5a5a7a;
            background: #fff;
            font-style: italic;
            border-top: 1px solid #e8ecf4;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.6rem 0;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }
        .data-table th {
            background: #1a1a2e;
            color: #fff;
            padding: 0.8rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        .data-table td {
            padding: 0.7rem 1rem;
            border-bottom: 1px solid #eef1f8;
        }
        .data-table tr:last-child td {
            border-bottom: none;
        }
        .data-table tr:hover td {
            background: #f8f9fe;
        }
        .form-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            margin: 2rem 0;
        }
        .form-card label {
            font-weight: 600;
            display: block;
            margin-bottom: 0.3rem;
            font-size: 0.95rem;
        }
        .form-card input,
        .form-card textarea,
        .form-card select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #e0e4ee;
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            transition: border-color 0.2s;
            background: #fafcff;
        }
        .form-card input:focus,
        .form-card textarea:focus,
        .form-card select:focus {
            border-color: #f7971e;
            outline: none;
            background: #fff;
        }
        .form-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .form-card .btn {
            background: linear-gradient(135deg, #f7971e, #ffd200);
            color: #1a1a2e;
            border: none;
            padding: 0.8rem 2rem;
            font-size: 1rem;
            font-weight: 700;
            border-radius: 50px;
            cursor: pointer;
            transition: transform 0.15s, box-shadow 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .form-card .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(247, 151, 30, 0.35);
        }
        .form-card .btn:active {
            transform: translateY(0);
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }
        @media (max-width: 600px) {
            .form-row {
                grid-template-columns: 1fr;
            }
        }
        .star-rating {
            display: flex;
            gap: 0.2rem;
            font-size: 1.8rem;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #ddd;
            transition: color 0.15s;
            cursor: pointer;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f7b731;
        }
        .interview-block {
            background: #f0f4fe;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin: 2rem 0;
            border: 1px solid #dce4f5;
        }
        .interview-block .quote {
            font-style: italic;
            font-size: 1.1rem;
            color: #1a1a2e;
            border-left: 4px solid #2b6cb0;
            padding-left: 1.2rem;
            margin: 1rem 0;
        }
        .interview-block .attribution {
            font-weight: 700;
            color: #0f0c29;
            margin-top: 0.5rem;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 1.2rem;
            margin: 1.6rem 0;
        }
        .stat-card {
            background: #fff;
            border-radius: 14px;
            padding: 1.2rem;
            text-align: center;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
            border: 1px solid #eef1f8;
        }
        .stat-card .number {
            font-size: 2rem;
            font-weight: 800;
            color: #f7971e;
            display: block;
        }
        .stat-card .label {
            font-size: 0.85rem;
            color: #5a5a7a;
            margin-top: 0.2rem;
        }
        footer[role="contentinfo"] {
            background: #0f0c29;
            color: #ccc;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
        }
        footer a {
            color: #ffd200;
        }
        footer a:hover {
            color: #fff;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-grid h4 {
            color: #ffd200;
            font-size: 1rem;
            margin-bottom: 0.8rem;
            border-bottom: 1px solid #2a2a4a;
            padding-bottom: 0.4rem;
        }
        .footer-grid ul {
            list-style: none;
            padding: 0;
        }
        .footer-grid ul li {
            margin-bottom: 0.3rem;
        }
        .footer-grid ul li a {
            font-size: 0.9rem;
        }
        friend-link {
            display: block;
            padding: 0.8rem 0;
            border-top: 1px solid #2a2a4a;
            margin-top: 1.2rem;
            font-size: 0.9rem;
            color: #aaa;
        }
        friend-link a {
            color: #ffd200;
            margin: 0 0.3rem;
        }
        .copyright {
            text-align: center;
            padding-top: 1.2rem;
            border-top: 1px solid #2a2a4a;
            font-size: 0.85rem;
            color: #888;
        }
        @media (max-width: 768px) {
            .nav-list {
                display: none;
                flex-direction: column;
                background: #1a1a2e;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                padding: 0.6rem 1rem;
                border-radius: 0 0 16px 16px;
                box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
                z-index: 200;
            }
            .nav-list.open {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .header-inner {
                position: relative;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .form-card {
                padding: 1.2rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .my-logo {
                font-size: 1.2rem;
            }
            .my-logo small {
                font-size: 0.6rem;
            }
            .container {
                padding: 0 0.8rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }
        .last-updated {
            font-size: 0.88rem;
            color: #7a7a9a;
            text-align: right;
            border-top: 1px solid #e8ecf4;
            padding-top: 0.6rem;
            margin-top: 2rem;
        }
        .back-to-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: #f7971e;
            color: #1a1a2e;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 16px rgba(247, 151, 30, 0.3);
            transition: transform 0.2s, opacity 0.2s;
            opacity: 0.85;
            z-index: 50;
        }
        .back-to-top:hover {
            transform: translateY(-4px);
            opacity: 1;
            text-decoration: none;
            color: #1a1a2e;
        }