* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
        }
        :root {
            --primary: #1a3c6e;
            --primary-light: #2a5a9e;
            --secondary: #f39c12;
            --accent: #e74c3c;
            --bg: #f8f9fa;
            --card-bg: #ffffff;
            --text: #2c3e50;
            --text-light: #6c7a89;
            --border: #e0e4e8;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --radius: 12px;
            --max-width: 1200px;
            --gold: #f1c40f;
            --green: #27ae60;
            --orange: #e67e22;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: var(--primary);
            color: #fff;
            padding: 0 0 4px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 14px 20px;
            max-width: var(--max-width);
            margin: 0 auto;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--secondary);
            font-size: 2rem;
        }
        .my-logo span {
            background: var(--secondary);
            color: var(--primary);
            padding: 0 8px;
            border-radius: 4px;
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            margin-left: 4px;
        }
        .my-logo:hover {
            color: #fff;
            opacity: 0.92;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 24px;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 8px;
            flex-wrap: wrap;
        }
        .nav-list li a {
            color: rgba(255, 255, 255, 0.88);
            padding: 8px 14px;
            border-radius: 30px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: all 0.25s;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list li a:hover,
        .nav-list li a.active {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.12);
        }
        .breadcrumb-wrap {
            background: rgba(255, 255, 255, 0.06);
            padding: 8px 20px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: var(--max-width);
            margin: 0 auto;
        }
        .breadcrumb-wrap a {
            color: rgba(255, 255, 255, 0.8);
        }
        .breadcrumb-wrap a:hover {
            color: var(--secondary);
        }
        .breadcrumb-wrap span {
            color: rgba(255, 255, 255, 0.5);
        }
        main {
            padding: 40px 0 60px;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
        }
        .content-area h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .content-area .subtitle {
            font-size: 1.1rem;
            color: var(--text-light);
            margin-bottom: 28px;
            border-left: 4px solid var(--secondary);
            padding-left: 18px;
        }
        .content-area h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            margin: 40px 0 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid var(--secondary);
        }
        .content-area h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--primary-light);
            margin: 28px 0 12px;
        }
        .content-area h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text);
            margin: 20px 0 8px;
        }
        .content-area p {
            margin-bottom: 16px;
            color: var(--text);
        }
        .content-area ul,
        .content-area ol {
            margin: 12px 0 20px 24px;
        }
        .content-area li {
            margin-bottom: 8px;
        }
        .content-area .highlight-box {
            background: var(--card-bg);
            border-left: 5px solid var(--secondary);
            padding: 20px 24px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 24px 0;
            box-shadow: var(--shadow);
        }
        .content-area .highlight-box strong {
            color: var(--primary);
        }
        .content-area .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 16px;
            margin: 24px 0;
        }
        .content-area .stat-card {
            background: var(--card-bg);
            padding: 20px 16px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            text-align: center;
            border-top: 4px solid var(--secondary);
        }
        .content-area .stat-card .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
        }
        .content-area .stat-card .label {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-top: 4px;
        }
        .content-area .featured-image {
            margin: 28px 0;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .content-area .featured-image figcaption {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 8px;
            text-align: center;
            font-style: italic;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .sidebar-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 24px 20px;
            box-shadow: var(--shadow);
            margin-bottom: 24px;
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            border-bottom: 2px solid var(--secondary);
            padding-bottom: 6px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card ul li {
            padding: 6px 0;
            border-bottom: 1px solid var(--border);
        }
        .sidebar-card ul li a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.92rem;
        }
        .sidebar-card ul li a i {
            color: var(--secondary);
            width: 16px;
        }
        .search-form {
            display: flex;
            gap: 8px;
            margin: 12px 0 4px;
        }
        .search-form input {
            flex: 1;
            padding: 10px 16px;
            border: 2px solid var(--border);
            border-radius: 30px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.25s;
        }
        .search-form input:focus {
            border-color: var(--primary-light);
        }
        .search-form button {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 30px;
            padding: 10px 20px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .search-form button:hover {
            background: var(--primary-light);
        }
        .comment-section {
            margin-top: 40px;
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 28px 30px;
            box-shadow: var(--shadow);
        }
        .comment-section h2 {
            margin-top: 0 !important;
            border-bottom: none !important;
            padding-bottom: 0 !important;
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: 8px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.25s;
            margin-bottom: 12px;
            font-family: inherit;
        }
        .comment-form textarea:focus,
        .comment-form input:focus {
            border-color: var(--primary-light);
        }
        .comment-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .comment-form .form-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .comment-form .form-row input {
            flex: 1;
            min-width: 140px;
        }
        .comment-form .btn-submit {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 30px;
            padding: 12px 32px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .comment-form .btn-submit:hover {
            background: var(--primary-light);
        }
        .star-rating {
            display: flex;
            gap: 6px;
            margin: 8px 0 16px;
            font-size: 1.6rem;
            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: var(--gold);
        }
        friend-link {
            display: block;
            margin-top: 8px;
        }
        friend-link a {
            display: inline-block;
            padding: 4px 12px;
            margin: 3px 4px 3px 0;
            background: rgba(26, 60, 110, 0.06);
            border-radius: 20px;
            font-size: 0.9rem;
            transition: background 0.2s;
        }
        friend-link a:hover {
            background: rgba(26, 60, 110, 0.14);
        }
        footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.85);
            padding: 36px 0 28px;
            margin-top: 40px;
        }
        footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
        }
        footer h4 {
            color: #fff;
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 12px;
        }
        footer a {
            color: rgba(255, 255, 255, 0.78);
        }
        footer a:hover {
            color: var(--secondary);
        }
        footer .copyright {
            grid-column: 1 / -1;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            margin-top: 12px;
            font-size: 0.88rem;
            text-align: center;
            color: rgba(255, 255, 255, 0.6);
        }
        footer .copyright strong {
            color: rgba(255, 255, 255, 0.85);
        }
        @media (max-width: 992px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            footer .container {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                padding: 10px 16px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: var(--primary-light);
                padding: 12px 16px;
                border-radius: 0 0 var(--radius) var(--radius);
                gap: 4px;
                margin-top: 8px;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 10px 14px;
                border-radius: 8px;
            }
            .hamburger {
                display: block;
            }
            .content-area h1 {
                font-size: 1.8rem;
            }
            .content-area h2 {
                font-size: 1.4rem;
            }
            .content-area h3 {
                font-size: 1.1rem;
            }
            .comment-section {
                padding: 20px 16px;
            }
            footer .container {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .breadcrumb-wrap {
                font-size: 0.75rem;
                padding: 6px 16px;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr !important;
            }
        }
        @media (max-width: 480px) {
            .stat-grid {
                grid-template-columns: 1fr !important;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                justify-content: center;
            }
            .content-area .highlight-box {
                padding: 16px 18px;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: var(--primary);
            color: #fff;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
            cursor: pointer;
            transition: all 0.3s;
            opacity: 0;
            pointer-events: none;
            border: none;
            z-index: 999;
        }
        .scroll-top.visible {
            opacity: 1;
            pointer-events: auto;
        }
        .scroll-top:hover {
            background: var(--primary-light);
            transform: translateY(-3px);
        }
        .anchor-offset {
            scroll-margin-top: 90px;
        }