*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, sans-serif;
            background: #f4f7fc;
            color: #1a2639;
            line-height: 1.7;
            padding: 0 16px;
        }
        a {
            color: #0a58ca;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover,
        a:focus {
            color: #e63946;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 0 40px rgba(0, 0, 0, 0.06);
            border-radius: 24px;
            padding: 20px 28px 32px;
            margin-top: 16px;
            margin-bottom: 40px;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0 12px;
            border-bottom: 2px solid #e9ecef;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #e63946, #f77f00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
            text-decoration: none !important;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none !important;
        }
        .my-logo small {
            font-size: 0.9rem;
            font-weight: 400;
            -webkit-text-fill-color: #5a6a7a;
            color: #5a6a7a;
            letter-spacing: 0.2px;
        }
        .nav-bar {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .nav-bar a {
            padding: 6px 14px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.92rem;
            color: #1a2639;
            background: transparent;
            transition: all 0.2s ease;
        }
        .nav-bar a:hover,
        .nav-bar a.active {
            background: #e63946;
            color: #fff;
            text-decoration: none;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #1a2639;
            border-radius: 8px;
            padding: 6px 12px;
            font-size: 1.4rem;
            cursor: pointer;
            color: #1a2639;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            background: #1a2639;
            color: #fff;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            padding: 12px 0 8px;
            font-size: 0.85rem;
            color: #6c757d;
            list-style: none;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #adb5bd;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #0a58ca;
        }
        .breadcrumb a:hover {
            color: #e63946;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin: 1.2rem 0 0.6rem;
            color: #1a2639;
            letter-spacing: -0.3px;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 2.2rem 0 0.8rem;
            padding-bottom: 6px;
            border-bottom: 3px solid #f77f00;
            color: #1a2639;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin: 1.8rem 0 0.5rem;
            color: #2b3a55;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 1.2rem 0 0.3rem;
            color: #3d4f6a;
        }
        p {
            margin-bottom: 1.1rem;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 400;
            color: #2c3e50;
            background: #f8f9fa;
            padding: 16px 20px;
            border-radius: 16px;
            border-left: 6px solid #e63946;
        }
        .last-updated {
            display: inline-block;
            background: #f1f3f5;
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 500;
            color: #495057;
            margin-bottom: 12px;
        }
        .last-updated i {
            margin-right: 6px;
            color: #e63946;
        }
        .featured-image {
            margin: 28px 0 24px;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.10);
        }
        .featured-image figcaption {
            background: #f1f3f5;
            padding: 10px 18px;
            font-size: 0.9rem;
            color: #495057;
            text-align: center;
            font-style: italic;
        }
        .search-box {
            display: flex;
            max-width: 520px;
            margin: 24px 0 28px;
            background: #f1f3f5;
            border-radius: 60px;
            overflow: hidden;
            border: 1px solid #dee2e6;
            transition: 0.2s;
        }
        .search-box:focus-within {
            border-color: #e63946;
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.15);
        }
        .search-box input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 14px 20px;
            font-size: 1rem;
            outline: none;
            font-family: inherit;
        }
        .search-box button {
            background: #e63946;
            color: #fff;
            border: none;
            padding: 14px 26px;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.2s;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-box button:hover {
            background: #c1121f;
        }
        .feedback-section {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            margin: 40px 0 20px;
            padding: 28px 24px;
            background: #f8f9fa;
            border-radius: 20px;
        }
        .feedback-card {
            flex: 1 1 280px;
        }
        .feedback-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 8px;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 12px 16px;
            border: 1px solid #dee2e6;
            border-radius: 12px;
            font-family: inherit;
            font-size: 0.95rem;
            outline: none;
            transition: 0.2s;
            background: #fff;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: #e63946;
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.12);
        }
        .feedback-card textarea {
            min-height: 90px;
            resize: vertical;
        }
        .feedback-card .btn-submit {
            background: #e63946;
            color: #fff;
            border: none;
            padding: 12px 24px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.2s;
            align-self: flex-start;
        }
        .feedback-card .btn-submit:hover {
            background: #c1121f;
            transform: scale(1.02);
        }
        .rating-stars {
            display: flex;
            gap: 4px;
            font-size: 1.6rem;
            color: #ffb703;
            cursor: pointer;
        }
        .rating-stars i {
            transition: 0.15s;
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #fb8500;
            transform: scale(1.15);
        }
        friend-link {
            display: block;
            padding: 20px 0 8px;
            margin-top: 24px;
            border-top: 2px solid #e9ecef;
        }
        friend-link::before {
            content: "🔗 Quick Links";
            display: block;
            font-size: 1.2rem;
            font-weight: 700;
            color: #1a2639;
            margin-bottom: 10px;
        }
        .friend-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            list-style: none;
            padding: 0;
        }
        .friend-list li a {
            font-weight: 500;
            padding: 4px 0;
        }
        .site-footer {
            margin-top: 36px;
            padding: 28px 0 12px;
            border-top: 2px solid #e9ecef;
            text-align: center;
            font-size: 0.9rem;
            color: #6c757d;
        }
        .site-footer .copyright {
            font-weight: 500;
            margin-top: 8px;
        }
        .schema-note {
            display: none;
        }
        @media (max-width: 768px) {
            .container {
                padding: 12px 16px 20px;
                border-radius: 16px;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .site-header {
                flex-wrap: wrap;
            }
            .nav-bar {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding-top: 12px;
                gap: 4px;
            }
            .nav-bar.open {
                display: flex;
            }
            .nav-bar a {
                padding: 10px 16px;
                border-radius: 12px;
                background: #f1f3f5;
            }
            .nav-toggle {
                display: inline-block;
            }
            .feedback-section {
                flex-direction: column;
                padding: 16px;
            }
            .search-box {
                max-width: 100%;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
        }
        @media (min-width: 769px) {
            .nav-bar {
                display: flex !important;
            }
            .nav-toggle {
                display: none !important;
            }
        }
        .highlight {
            background: #fff3cd;
            padding: 0 4px;
            border-radius: 4px;
        }
        .emoji-big {
            font-size: 1.8rem;
            vertical-align: middle;
        }
        .insight-box {
            background: #e7f0fa;
            border-radius: 16px;
            padding: 18px 22px;
            margin: 20px 0;
            border-left: 6px solid #0a58ca;
        }
        .insight-box strong {
            color: #0a58ca;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 20px 0;
        }
        @media (max-width: 600px) {
            .grid-2 {
                grid-template-columns: 1fr;
            }
        }
        .btn-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #1a2639;
            color: #fff;
            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(0, 0, 0, 0.15);
            transition: 0.2s;
            z-index: 999;
            border: none;
            cursor: pointer;
        }
        .btn-top:hover {
            background: #e63946;
            transform: translateY(-4px);
        }