*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #1a2a6c;
            --secondary: #b21f1f;
            --accent: #fdbb2d;
            --bg-light: #f8f9fc;
            --bg-dark: #0f1a2e;
            --text-dark: #1a1a2e;
            --text-light: #f0f0f0;
            --text-muted: #5a5a7a;
            --border: #dcdce6;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            --radius: 14px;
            --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-main: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-main);
            background: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: var(--bg-dark);
            color: var(--text-light);
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--accent), #f7971e);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: none;
            transition: var(--transition);
        }
        .my-logo:hover {
            opacity: 0.85;
            transform: scale(1.02);
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            -webkit-text-fill-color: rgba(255, 255, 255, 0.7);
            display: block;
            letter-spacing: 1px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.2);
            color: var(--text-light);
            font-size: 1.6rem;
            padding: 8px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.05);
            border-color: var(--accent);
        }
        .nav-menu {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-menu a {
            color: rgba(255, 255, 255, 0.85);
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .nav-menu a:hover,
        .nav-menu a.active {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--accent);
            color: var(--accent);
        }
        .breadcrumb {
            background: #fff;
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            font-size: 0.88rem;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            align-items: center;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: var(--text-muted);
            font-weight: 700;
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .current {
            color: var(--secondary);
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(145deg, var(--bg-dark) 0%, #162447 100%);
            color: var(--text-light);
            padding: 60px 0 50px;
            text-align: center;
            border-bottom: 4px solid var(--accent);
        }
        .hero h1 {
            font-size: clamp(2.2rem, 7vw, 3.8rem);
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 16px;
            background: linear-gradient(to right, #fff, var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 780px;
            margin: 0 auto 24px;
            color: rgba(255, 255, 255, 0.85);
        }
        .hero .meta-info {
            display: flex;
            justify-content: center;
            gap: 30px;
            flex-wrap: wrap;
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
        }
        .hero .meta-info i {
            margin-right: 6px;
            color: var(--accent);
        }
        .content-area {
            padding: 50px 0 60px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 44px;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .main-content h2 {
            font-size: 2rem;
            margin-top: 48px;
            margin-bottom: 18px;
            color: var(--primary);
            border-left: 6px solid var(--accent);
            padding-left: 18px;
        }
        .main-content h3 {
            font-size: 1.5rem;
            margin-top: 36px;
            margin-bottom: 14px;
            color: var(--bg-dark);
        }
        .main-content h4 {
            font-size: 1.2rem;
            margin-top: 26px;
            margin-bottom: 10px;
            color: var(--text-muted);
            font-weight: 600;
        }
        .main-content p {
            margin-bottom: 18px;
            font-size: 1.05rem;
            color: #2d2d44;
        }
        .main-content ul,
        .main-content ol {
            margin: 16px 0 24px 28px;
        }
        .main-content li {
            margin-bottom: 10px;
            font-size: 1.02rem;
        }
        .main-content .highlight-box {
            background: #fff;
            border-radius: var(--radius);
            padding: 28px 32px;
            box-shadow: var(--shadow);
            border-left: 6px solid var(--accent);
            margin: 32px 0;
        }
        .main-content .highlight-box strong {
            color: var(--secondary);
        }
        .main-content .emoji-lg {
            font-size: 1.5rem;
            margin-right: 6px;
        }
        .main-content .btn-link {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 8px 24px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .main-content .btn-link:hover {
            background: var(--secondary);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(178, 31, 31, 0.3);
        }
        .featured-image {
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin: 32px 0;
            overflow: hidden;
        }
        .featured-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .featured-image figcaption {
            padding: 12px 18px;
            background: #fff;
            font-size: 0.9rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 24px 22px;
            box-shadow: var(--shadow);
            margin-bottom: 28px;
        }
        .sidebar-card h3 {
            font-size: 1.25rem;
            margin-bottom: 16px;
            color: var(--primary);
            border-bottom: 2px solid var(--accent);
            padding-bottom: 10px;
        }
        .sidebar-card ul {
            list-style: none;
        }
        .sidebar-card li {
            margin-bottom: 10px;
        }
        .sidebar-card a {
            color: var(--text-dark);
            font-weight: 500;
            display: block;
            padding: 6px 0;
            border-bottom: 1px dashed var(--border);
        }
        .sidebar-card a:hover {
            color: var(--secondary);
            padding-left: 6px;
        }
        .sidebar-card .fa-ul li i {
            color: var(--accent);
            margin-right: 10px;
        }
        .search-form {
            display: flex;
            gap: 8px;
            margin: 20px 0 30px;
        }
        .search-form input {
            flex: 1;
            padding: 14px 20px;
            border: 2px solid var(--border);
            border-radius: 50px;
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }
        .search-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(26, 42, 108, 0.08);
        }
        .search-form button {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 14px 28px;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            font-size: 1rem;
        }
        .search-form button:hover {
            background: var(--secondary);
            transform: scale(1.03);
        }
        .feedback-section {
            background: #fff;
            border-radius: var(--radius);
            padding: 36px 32px;
            box-shadow: var(--shadow);
            margin-top: 50px;
        }
        .feedback-section h2 {
            border-left-color: var(--secondary);
            margin-top: 0;
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 14px 18px;
            border: 2px solid var(--border);
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            transition: var(--transition);
            margin-bottom: 14px;
        }
        .comment-form textarea:focus,
        .comment-form input:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 4px rgba(26, 42, 108, 0.06);
        }
        .comment-form textarea {
            min-height: 120px;
            resize: vertical;
        }
        .comment-form button,
        .rating-form button {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .comment-form button:hover,
        .rating-form button:hover {
            background: var(--secondary);
            transform: translateY(-2px);
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 2rem;
            cursor: pointer;
            margin: 12px 0 18px;
        }
        .rating-stars i {
            color: #ddd;
            transition: var(--transition);
        }
        .rating-stars i.active,
        .rating-stars i:hover,
        .rating-stars i:hover~i {
            color: var(--accent);
        }
        .rating-stars i:hover {
            transform: scale(1.2);
        }
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 400px;
        }
        .rating-form select {
            padding: 12px 16px;
            border-radius: 10px;
            border: 2px solid var(--border);
            font-size: 1rem;
        }
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 30px;
            margin-top: 40px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
        }
        @media (max-width: 768px) {
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        .footer-inner h4 {
            color: var(--accent);
            margin-bottom: 16px;
            font-size: 1.15rem;
        }
        .footer-inner a {
            color: rgba(255, 255, 255, 0.75);
            display: block;
            padding: 4px 0;
            font-size: 0.95rem;
        }
        .footer-inner a:hover {
            color: var(--accent);
        }
        friend-link {
            display: block;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        friend-link a {
            display: inline-block;
            margin-right: 20px;
            margin-bottom: 8px;
        }
        .copyright {
            text-align: center;
            padding-top: 28px;
            margin-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 6px;
                padding: 16px 0 8px;
                border-top: 1px solid rgba(255, 255, 255, 0.05);
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                width: 100%;
                text-align: center;
                padding: 12px;
            }
            .hero {
                padding: 40px 0 30px;
            }
            .hero .meta-info {
                gap: 14px;
                flex-direction: column;
                align-items: center;
            }
            .content-area {
                padding: 30px 0 40px;
            }
            .feedback-section {
                padding: 24px 18px;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
            }
            .main-content h2 {
                font-size: 1.6rem;
                padding-left: 12px;
            }
            .main-content h3 {
                font-size: 1.25rem;
            }
            .sidebar {
                position: static;
            }
        }
        @media (max-width: 480px) {
            .my-logo {
                font-size: 1.5rem;
            }
            .header-inner {
                gap: 8px;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .container {
                padding: 0 14px;
            }
        }
        .text-accent {
            color: var(--accent);
        }
        .text-bold {
            font-weight: 700;
        }
        .mt-20 {
            margin-top: 20px;
        }
        .mb-20 {
            margin-bottom: 20px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }