*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
            background: #f5f7fc;
            color: #1e2a3a;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #1a56db;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: #0e3a8a;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        .container {
            max-width: 1160px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0b1a2e 0%, #1a3a5a 100%);
            color: #fff;
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.75rem 1rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #fbbf24, #f59e0b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: none;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
        }
        .my-logo i {
            -webkit-text-fill-color: #fbbf24;
            font-size: 1.6rem;
        }
        .my-logo span {
            font-size: 0.75rem;
            font-weight: 400;
            -webkit-text-fill-color: #b0c4de;
            letter-spacing: 0.3px;
            display: none;
        }
        @media (min-width:540px) {
            .my-logo span {
                display: inline;
            }
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
            transition: color 0.2s;
        }
        .nav-toggle:hover {
            color: #fbbf24;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.25rem 0.5rem;
            flex-wrap: wrap;
        }
        .nav-menu a {
            color: #e0edff;
            padding: 0.4rem 0.9rem;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.25s, color 0.25s;
            white-space: nowrap;
        }
        .nav-menu a:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fbbf24;
            text-decoration: none;
        }
        .nav-menu a i {
            margin-right: 0.3rem;
            font-size: 0.8rem;
        }
        @media (max-width:767px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                background: rgba(11, 26, 46, 0.98);
                padding: 1rem 0.75rem;
                border-radius: 0 0 16px 16px;
                margin-top: 0.5rem;
                gap: 0.25rem;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 0.6rem 1rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }
        }
        .breadcrumb {
            background: #e9eef5;
            padding: 0.6rem 0;
            font-size: 0.85rem;
            color: #4a5a6a;
            border-bottom: 1px solid #dce3ec;
        }
        .breadcrumb-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.3rem 0.5rem;
        }
        .breadcrumb-inner a {
            color: #1a56db;
        }
        .breadcrumb-inner span {
            color: #6a7a8a;
        }
        main {
            padding: 2rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
        }
        @media (min-width:992px) {
            .content-grid {
                grid-template-columns: 1fr 300px;
            }
        }
        article {
            background: #fff;
            border-radius: 24px;
            padding: 2rem 1.75rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
        }
        @media (min-width:768px) {
            article {
                padding: 2.8rem 2.5rem;
            }
        }
        h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 0.75rem;
            color: #0b1a2e;
        }
        h1 i {
            color: #f59e0b;
            margin-right: 0.3rem;
        }
        h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-top: 2.4rem;
            margin-bottom: 0.9rem;
            padding-bottom: 0.4rem;
            border-bottom: 3px solid #f0f4fc;
            color: #0b1a2e;
        }
        h2 i {
            color: #1a56db;
            margin-right: 0.4rem;
        }
        h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
            color: #1e3a5a;
        }
        h3 i {
            color: #f59e0b;
            margin-right: 0.3rem;
        }
        h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-top: 1.2rem;
            margin-bottom: 0.4rem;
            color: #2a4a6a;
        }
        p {
            margin-bottom: 1.1rem;
        }
        .last-updated {
            display: inline-block;
            background: #eef2f7;
            padding: 0.25rem 1rem;
            border-radius: 40px;
            font-size: 0.8rem;
            color: #4a6a8a;
            margin-bottom: 1.2rem;
        }
        .last-updated i {
            margin-right: 0.3rem;
        }
        .featured-image {
            margin: 1.8rem 0 2rem;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
            background: #eef2f7;
        }
        .featured-image img {
            width: 100%;
            aspect-ratio: 1200/630;
            object-fit: cover;
        }
        .featured-image figcaption {
            padding: 0.6rem 1.2rem;
            font-size: 0.85rem;
            color: #4a6a8a;
            background: #f8faff;
            border-top: 1px solid #e6ecf5;
            font-style: italic;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 1.8rem;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 20px;
            padding: 1.5rem 1.25rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-top: 0;
            margin-bottom: 0.8rem;
            border-bottom: 2px solid #f0f4fc;
            padding-bottom: 0.5rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding-left: 0;
        }
        .sidebar-card ul li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f0f4fc;
        }
        .sidebar-card ul li:last-child {
            border-bottom: none;
        }
        .sidebar-card ul li a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 500;
        }
        .sidebar-card ul li a i {
            color: #f59e0b;
            font-size: 0.8rem;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 0.25rem;
            color: #1e3a5a;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #dce3ec;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            background: #fafcff;
            transition: border 0.25s, box-shadow 0.25s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #1a56db;
            box-shadow: 0 0 0 4px rgba(26, 86, 219, 0.1);
        }
        .form-group textarea {
            min-height: 90px;
            resize: vertical;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #1a56db;
            color: #fff;
            padding: 0.7rem 1.8rem;
            border: none;
            border-radius: 40px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            font-family: inherit;
        }
        .btn:hover {
            background: #0e3a8a;
            transform: translateY(-2px);
            text-decoration: none;
            color: #fff;
        }
        .btn i {
            font-size: 0.9rem;
        }
        .btn-secondary {
            background: #e9eef5;
            color: #1e2a3a;
        }
        .btn-secondary:hover {
            background: #dce3ec;
            color: #1e2a3a;
        }
        .comment-item {
            padding: 0.8rem 0;
            border-bottom: 1px solid #f0f4fc;
        }
        .comment-item:last-child {
            border-bottom: none;
        }
        .comment-author {
            font-weight: 700;
            color: #0b1a2e;
        }
        .comment-meta {
            font-size: 0.8rem;
            color: #6a8aaa;
        }
        .star-rating {
            display: flex;
            gap: 0.25rem;
            font-size: 1.3rem;
            color: #dce3ec;
            cursor: pointer;
        }
        .star-rating .star.active {
            color: #f59e0b;
        }
        .star-rating .star:hover {
            color: #fbbf24;
        }
        .score-display {
            font-size: 1.1rem;
            font-weight: 700;
            color: #0b1a2e;
        }
        .site-footer {
            background: #0b1a2e;
            color: #b0c4de;
            padding: 2.5rem 0 1.8rem;
            margin-top: 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        @media (min-width:640px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (min-width:992px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
        }
        .site-footer h4 {
            color: #fbbf24;
            margin-top: 0;
            margin-bottom: 0.8rem;
            font-size: 1.05rem;
        }
        .site-footer a {
            color: #8ab4f8;
        }
        .site-footer a:hover {
            color: #fbbf24;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 1.5rem;
            margin-top: 2rem;
            text-align: center;
            font-size: 0.85rem;
            color: #6a8aaa;
        }
        friend-link {
            display: block;
            margin: 0.5rem 0;
        }
        friend-link a {
            display: inline-block;
            padding: 0.2rem 0;
        }
        @media (max-width:480px) {
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            h3 {
                font-size: 1.05rem;
            }
            article {
                padding: 1.25rem 1rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
        }
        @media (max-width:400px) {
            .header-inner {
                flex-direction: column;
                align-items: stretch;
            }
            .nav-toggle {
                align-self: flex-end;
            }
        }
        .highlight-box {
            background: #f0f7ff;
            border-left: 4px solid #1a56db;
            padding: 1.2rem 1.5rem;
            border-radius: 0 16px 16px 0;
            margin: 1.5rem 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .emoji-big {
            font-size: 1.4rem;
            line-height: 1;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0.8rem;
            margin: 1.2rem 0;
        }
        @media (min-width:600px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr 1fr;
            }
        }
        .stat-card {
            background: #f0f7ff;
            padding: 1rem;
            border-radius: 16px;
            text-align: center;
        }
        .stat-card .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: #0b1a2e;
        }
        .stat-card .label {
            font-size: 0.8rem;
            color: #4a6a8a;
        }
        .inline-list {
            display: inline-flex;
            flex-wrap: wrap;
            gap: 0.25rem 0.75rem;
        }
        .inline-list a {
            font-weight: 600;
        }
        .schema-hidden {
            display: none;
        }