*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif;
            background: #f8fafc;
            color: #1e293b;
            line-height: 1.75;
            padding: 0;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        a {
            color: #0d6efd;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #0a58ca;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0b2b4a 0%, #1a5276 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;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #f7dc6f;
            text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.3);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #f9e79f;
        }
        .my-logo i {
            font-size: 2rem;
            color: #5dade2;
        }
        .my-logo span {
            font-weight: 300;
            font-size: 0.9rem;
            color: #aed6f1;
            margin-left: 0.3rem;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .main-nav {
            display: flex;
            gap: 0.25rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #eaf2f8;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.9rem;
            transition: background 0.25s, color 0.25s;
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.2);
            color: #f7dc6f;
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 0.35rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.6);
            color: #fff;
            font-size: 1.5rem;
            padding: 0.3rem 0.7rem;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-check {
            display: none;
        }
        .breadcrumb {
            background: #eaf2f8;
            padding: 0.7rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #d4e6f1;
        }
        .breadcrumb ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #7f8c8d;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #2c3e50;
        }
        .breadcrumb a:hover {
            color: #1a5276;
        }
        .breadcrumb .current {
            color: #7f8c8d;
            font-weight: 500;
        }
        .hero {
            background: linear-gradient(145deg, #eaf2f8, #d4e6f1);
            padding: 2.5rem 0;
            border-bottom: 4px solid #f7dc6f;
        }
        .hero-content {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #0b2b4a;
            line-height: 1.2;
            letter-spacing: -0.5px;
        }
        .hero h1 i {
            color: #f39c12;
        }
        .hero p {
            font-size: 1.15rem;
            color: #2c3e50;
            max-width: 780px;
        }
        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem 2.5rem;
            font-size: 0.95rem;
            color: #34495e;
            margin-top: 0.5rem;
        }
        .hero-meta span {
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .hero-meta i {
            color: #1a5276;
        }
        .last-updated {
            background: #f7dc6f;
            color: #1e293b;
            padding: 0.2rem 1rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.85rem;
        }
        .main-content {
            padding: 2.5rem 0;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 2.5rem;
        }
        .content-body {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .sidebar-card {
            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 #e9ecef;
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            color: #0b2b4a;
            margin-bottom: 1rem;
            border-bottom: 2px solid #f7dc6f;
            padding-bottom: 0.5rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-card li {
            padding: 0.5rem 0;
            border-bottom: 1px solid #f1f3f5;
        }
        .sidebar-card li:last-child {
            border-bottom: none;
        }
        .sidebar-card a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 500;
        }
        .sidebar-card a i {
            color: #f39c12;
            width: 1.2rem;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #0b2b4a;
            margin: 2.5rem 0 1rem 0;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #f7dc6f;
        }
        h2 i {
            color: #f39c12;
            margin-right: 0.5rem;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #1a5276;
            margin: 1.8rem 0 0.8rem 0;
        }
        h3 i {
            margin-right: 0.4rem;
            color: #5dade2;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #2c3e50;
            margin: 1.2rem 0 0.5rem 0;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .highlight {
            background: #fef9e7;
            border-left: 4px solid #f7dc6f;
            padding: 1rem 1.5rem;
            border-radius: 0 8px 8px 0;
            margin: 1.5rem 0;
        }
        .highlight strong {
            color: #1a5276;
        }
        .code-box {
            background: #1e293b;
            color: #aed6f1;
            padding: 1rem 1.5rem;
            border-radius: 10px;
            font-family: 'Courier New', monospace;
            font-size: 0.95rem;
            overflow-x: auto;
            margin: 1rem 0;
            white-space: pre-wrap;
            word-break: break-all;
        }
        .emoji-big {
            font-size: 1.4rem;
        }
        .code-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
        }
        .code-table th {
            background: #0b2b4a;
            color: #f7dc6f;
            padding: 0.9rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        .code-table td {
            padding: 0.8rem 1rem;
            border-bottom: 1px solid #e9ecef;
        }
        .code-table tr:last-child td {
            border-bottom: none;
        }
        .code-table tr:hover td {
            background: #f8f9fa;
        }
        .code-table .status-active {
            color: #27ae60;
            font-weight: 600;
        }
        .code-table .status-expired {
            color: #e74c3c;
            font-weight: 600;
        }
        .copy-btn {
            background: #f7dc6f;
            border: none;
            padding: 0.2rem 0.8rem;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            font-size: 0.8rem;
            transition: background 0.2s;
        }
        .copy-btn:hover {
            background: #f5c842;
        }
        .search-box {
            display: flex;
            gap: 0.5rem;
            margin: 1.5rem 0;
            flex-wrap: wrap;
        }
        .search-box input {
            flex: 1;
            min-width: 200px;
            padding: 0.8rem 1.2rem;
            border: 2px solid #d4e6f1;
            border-radius: 30px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s;
        }
        .search-box input:focus {
            border-color: #1a5276;
        }
        .search-box button {
            background: #1a5276;
            color: #fff;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-box button:hover {
            background: #0b2b4a;
        }
        .feedback-section {
            background: #fff;
            border-radius: 16px;
            padding: 2rem;
            margin: 2.5rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            border: 1px solid #e9ecef;
        }
        .feedback-section h2 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.3rem;
            color: #2c3e50;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #d4e6f1;
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            transition: border-color 0.3s;
            background: #fafcff;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #1a5276;
            outline: none;
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }
        .star-rating {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #ccc;
            transition: color 0.2s;
            cursor: pointer;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f7dc6f;
        }
        .btn-primary {
            background: #1a5276;
            color: #fff;
            border: none;
            padding: 0.8rem 2.5rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-primary:hover {
            background: #0b2b4a;
            transform: translateY(-1px);
        }
        .featured-image {
            margin: 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
        }
        .featured-image figcaption {
            background: #f1f3f5;
            padding: 0.7rem 1.2rem;
            font-size: 0.85rem;
            color: #555;
            text-align: center;
        }
        .interview-card {
            background: #f0f8ff;
            border-radius: 16px;
            padding: 1.8rem;
            margin: 2rem 0;
            border-left: 5px solid #1a5276;
        }
        .interview-card .quote {
            font-style: italic;
            font-size: 1.05rem;
            margin-bottom: 0.8rem;
            position: relative;
            padding-left: 1.5rem;
        }
        .interview-card .quote::before {
            content: "\201C";
            font-size: 3rem;
            color: #1a5276;
            position: absolute;
            left: -0.3rem;
            top: -0.8rem;
            opacity: 0.3;
        }
        .interview-card .author {
            font-weight: 600;
            color: #1a5276;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        friend-link {
            display: block;
            padding: 2rem 0;
        }
        .friend-links-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 1.5rem;
            list-style: none;
            padding: 0;
            margin: 1rem 0 0 0;
        }
        .friend-links-grid li a {
            background: #eaf2f8;
            padding: 0.4rem 1.2rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            display: inline-block;
            transition: background 0.2s, color 0.2s;
        }
        .friend-links-grid li a:hover {
            background: #1a5276;
            color: #fff;
            text-decoration: none;
        }
        .site-footer {
            background: #0b2b4a;
            color: #d4e6f1;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
        }
        .site-footer a {
            color: #f7dc6f;
        }
        .site-footer a:hover {
            color: #fff;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        .footer-inner h4 {
            color: #f7dc6f;
            margin-bottom: 1rem;
            font-size: 1.1rem;
        }
        .footer-inner ul {
            list-style: none;
            padding: 0;
        }
        .footer-inner li {
            margin-bottom: 0.4rem;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.85rem;
            color: #aed6f1;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .content-body {
                order: 1;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
            .hero h1 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: rgba(11, 43, 74, 0.98);
                padding: 1rem;
                border-radius: 12px;
                margin-top: 0.8rem;
                gap: 0.3rem;
            }
            .main-nav a {
                padding: 0.7rem 1rem;
                border-radius: 8px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            .nav-check:checked~.main-nav {
                display: flex;
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo span {
                font-size: 0.7rem;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
            }
            .code-table {
                font-size: 0.85rem;
            }
            .code-table th,
            .code-table td {
                padding: 0.5rem 0.6rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .feedback-section {
                padding: 1.2rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.9rem;
            }
            .hero h1 {
                font-size: 1.4rem;
            }
            .hero-meta {
                gap: 0.8rem;
                font-size: 0.8rem;
            }
            .search-box button {
                padding: 0.7rem 1.2rem;
                font-size: 0.9rem;
            }
            .star-rating {
                font-size: 1.4rem;
            }
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .text-center {
            text-align: center;
        }
        .flex-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }