*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --secondary: #1d3557;
            --accent: #f4a261;
            --light: #f1faee;
            --dark: #0d1b2a;
            --gray: #457b9d;
            --text: #1a1a2e;
            --bg: #fefefe;
            --card-bg: #ffffff;
            --radius: 12px;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --font: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.85;
            padding: 0;
            margin: 0;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover,
        a:focus-visible {
            color: var(--primary-dark);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--secondary);
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
        }
        h1 {
            font-size: 2.6rem;
            margin-top: 0.5rem;
            color: var(--primary);
        }
        h2 {
            font-size: 2rem;
            border-bottom: 3px solid var(--accent);
            padding-bottom: 0.3rem;
        }
        h3 {
            font-size: 1.5rem;
            color: var(--secondary);
        }
        h4 {
            font-size: 1.2rem;
            color: var(--gray);
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.2rem;
            width: 100%;
        }
        header {
            background: var(--secondary);
            color: #fff;
            padding: 0.6rem 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: 0.8rem;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            background: var(--primary);
            padding: 0.2rem 1.2rem;
            border-radius: 40px;
            display: inline-block;
            transition: var(--transition);
        }
        .my-logo:hover {
            background: var(--primary-dark);
            transform: scale(1.02);
            text-decoration: none;
            color: #fff;
        }
        .my-logo small {
            font-weight: 400;
            font-size: 0.7rem;
            opacity: 0.85;
            display: block;
            line-height: 1;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 0.2rem;
            flex-wrap: wrap;
            padding: 0;
            margin: 0;
        }
        .nav-list li a {
            color: #fff;
            padding: 0.4rem 0.9rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
            display: inline-block;
        }
        .nav-list li a:hover,
        .nav-list li a:focus-visible {
            background: rgba(255, 255, 255, 0.18);
            text-decoration: none;
            color: var(--accent);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.6rem;
            border-radius: 8px;
            transition: var(--transition);
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.12);
        }
        .breadcrumb {
            background: var(--light);
            padding: 0.5rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0;
            gap: 0.3rem;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 0.4rem;
            color: var(--gray);
            font-weight: 700;
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .current {
            color: var(--secondary);
            font-weight: 600;
        }
        main {
            flex: 1;
            padding: 2rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            align-items: start;
        }
        .article-body {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 100px;
        }
        .sidebar-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 1.5rem;
            box-shadow: var(--shadow);
            margin-bottom: 1.5rem;
            border: 1px solid rgba(0, 0, 0, 0.04);
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            margin-top: 0;
            border-bottom: 2px solid var(--accent);
            padding-bottom: 0.4rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card ul li {
            padding: 0.3rem 0;
            border-bottom: 1px dashed #eee;
        }
        .sidebar-card ul li a {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 0.9rem;
        }
        .sidebar-card ul li a i {
            color: var(--accent);
            width: 1.2rem;
        }
        .featured-image {
            margin: 2rem 0;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            background: var(--light);
        }
        .featured-image img {
            width: 100%;
            max-height: 450px;
            object-fit: cover;
        }
        .featured-image figcaption {
            padding: 0.6rem 1rem;
            font-size: 0.85rem;
            color: var(--gray);
            background: var(--light);
            font-style: italic;
        }
        .form-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 2rem;
            box-shadow: var(--shadow);
            border: 1px solid rgba(0, 0, 0, 0.04);
            margin-top: 2.5rem;
        }
        .form-card h2,
        .form-card h3 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.3rem;
            font-size: 0.95rem;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 2px solid #e0e0e0;
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            transition: var(--transition);
            background: #fafafa;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--primary);
            outline: none;
            background: #fff;
            box-shadow: 0 0 0 4px rgba(230, 57, 70, 0.1);
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 2rem;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            background: var(--primary);
            color: #fff;
        }
        .btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(230, 57, 70, 0.3);
        }
        .btn-secondary {
            background: var(--secondary);
        }
        .btn-secondary:hover {
            background: #0f2b4a;
            box-shadow: 0 6px 20px rgba(29, 53, 87, 0.3);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            transition: var(--transition);
            cursor: pointer;
            color: #ddd;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f4a261;
        }
        .comment-list {
            margin-top: 1.5rem;
        }
        .comment-item {
            padding: 1rem 0;
            border-bottom: 1px solid #eee;
        }
        .comment-item:last-child {
            border-bottom: none;
        }
        .comment-author {
            font-weight: 700;
            color: var(--secondary);
        }
        .comment-date {
            font-size: 0.8rem;
            color: var(--gray);
            margin-left: 0.8rem;
        }
        .comment-body {
            margin-top: 0.3rem;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.95rem;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .data-table thead {
            background: var(--secondary);
            color: #fff;
        }
        .data-table th,
        .data-table td {
            padding: 0.75rem 1rem;
            text-align: left;
            border-bottom: 1px solid #eee;
        }
        .data-table tbody tr:hover {
            background: #f8f9fa;
        }
        footer {
            background: var(--dark);
            color: #ccc;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
            border-top: 4px solid var(--primary);
        }
        footer a {
            color: var(--accent);
        }
        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: #fff;
            margin-top: 0;
            font-size: 1.1rem;
            border-bottom: 2px solid var(--primary);
            padding-bottom: 0.4rem;
        }
        .friend-link {
            display: block;
            padding: 0.3rem 0;
        }
        .friend-link a {
            color: var(--accent);
            font-size: 0.9rem;
        }
        .friend-link a:hover {
            color: #fff;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.85rem;
            color: #999;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                margin-top: 2rem;
            }
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: var(--secondary);
                padding: 1rem 0;
                border-radius: 0 0 var(--radius) var(--radius);
                gap: 0;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                display: block;
                padding: 0.7rem 1.2rem;
                border-radius: 0;
            }
            .hamburger {
                display: block;
            }
            .breadcrumb ol {
                font-size: 0.75rem;
            }
            .form-card {
                padding: 1.2rem;
            }
            .data-table {
                font-size: 0.8rem;
            }
            .data-table th,
            .data-table td {
                padding: 0.5rem 0.6rem;
            }
            .my-logo {
                font-size: 1.5rem;
                padding: 0.1rem 1rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.8rem;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            .star-rating {
                font-size: 1.6rem;
            }
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .text-accent {
            color: var(--accent);
        }
        .text-primary {
            color: var(--primary);
        }
        .highlight {
            background: #fff3cd;
            padding: 0.1rem 0.3rem;
            border-radius: 4px;
        }
        .badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 0.2rem 0.7rem;
            border-radius: 30px;
            letter-spacing: 0.3px;
        }
        .quote {
            border-left: 4px solid var(--primary);
            background: var(--light);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
            font-style: italic;
        }
        .quote cite {
            display: block;
            margin-top: 0.5rem;
            font-style: normal;
            font-weight: 600;
            color: var(--secondary);
        }
        .update-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: var(--light);
            padding: 0.3rem 1rem;
            border-radius: 30px;
            font-size: 0.8rem;
            color: var(--gray);
            border: 1px solid #e0e0e0;
        }