*,
        *::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: #f5f7fb;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #0056b3;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus {
            color: #ff6b00;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1.2rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(145deg, #0f1a2e, #1a2a44);
            color: #fff;
            padding: 0.8rem 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: 0.8rem;
        }
        .my-logo {
            font-size: 1.7rem;
            font-weight: 800;
            color: #ffd700;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 8px rgba(255, 215, 0, 0.2);
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #ffed4a;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            color: #aac4e0;
            display: block;
            letter-spacing: 1px;
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .main-nav {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: #e0e8f5;
            padding: 0.5rem 0.9rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: rgba(255, 215, 0, 0.15);
            color: #ffd700;
            text-decoration: none;
        }
        .main-nav .nav-icon {
            margin-right: 0.3rem;
            font-size: 0.8rem;
        }
        .breadcrumb-wrap {
            background: #eef2f7;
            padding: 0.6rem 0;
            border-bottom: 1px solid #dce3ed;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            font-size: 0.85rem;
            color: #4a5568;
            gap: 0.3rem;
        }
        .breadcrumb a {
            color: #2b6cb0;
        }
        .breadcrumb a:hover {
            color: #ff6b00;
        }
        .breadcrumb .sep {
            color: #a0aec0;
            margin: 0 0.2rem;
        }
        .hero {
            padding: 2.5rem 0 1.5rem;
            background: linear-gradient(135deg, #e8edf5 0%, #d4e0ee 100%);
            border-bottom: 4px solid #ffd700;
        }
        .hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #0f1a2e;
            line-height: 1.2;
            margin-bottom: 0.5rem;
            letter-spacing: -0.5px;
        }
        .hero .sub-title {
            font-size: 1.1rem;
            color: #2d4059;
            max-width: 800px;
        }
        .hero .meta-info {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-top: 0.8rem;
            font-size: 0.9rem;
            color: #4a5568;
        }
        .hero .meta-info i {
            margin-right: 0.4rem;
            color: #ff6b00;
        }
        .last-updated {
            font-weight: 600;
            color: #c05621;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 2.5rem;
            padding: 2.5rem 0;
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            min-width: 0;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #0f1a2e;
            margin: 2.2rem 0 1rem 0;
            padding-bottom: 0.4rem;
            border-bottom: 3px solid #ffd700;
            display: inline-block;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: #1a2a44;
            margin: 1.8rem 0 0.8rem 0;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #2d4059;
            margin: 1.2rem 0 0.5rem 0;
        }
        p {
            margin-bottom: 1.2rem;
            color: #2d3748;
        }
        .lead {
            font-size: 1.15rem;
            color: #1a202c;
            font-weight: 500;
        }
        strong {
            color: #0f1a2e;
        }
        .emoji-big {
            font-size: 1.4rem;
            margin-right: 0.3rem;
        }
        .highlight-box {
            background: #edf2f9;
            border-left: 5px solid #ffd700;
            padding: 1.2rem 1.8rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .info-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            margin: 1.5rem 0;
            border: 1px solid #e2e8f0;
        }
        .info-card h4 {
            margin-top: 0;
            color: #0f1a2e;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
            border-radius: 12px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            font-size: 0.95rem;
            min-width: 600px;
        }
        table thead {
            background: #0f1a2e;
            color: #ffd700;
        }
        table th,
        table td {
            padding: 0.8rem 1rem;
            text-align: left;
            border-bottom: 1px solid #e2e8f0;
        }
        table tbody tr:hover {
            background: #f7fafc;
        }
        table th {
            font-weight: 600;
            letter-spacing: 0.5px;
        }
        .featured-image {
            margin: 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.1);
            background: #e2e8f0;
        }
        .featured-image img {
            width: 100%;
            height: auto;
            aspect-ratio: 1200/630;
            object-fit: cover;
        }
        .featured-image figcaption {
            padding: 0.8rem 1.2rem;
            background: #0f1a2e;
            color: #e0e8f5;
            font-size: 0.9rem;
            font-style: italic;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem;
            margin-bottom: 1.8rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
            border: 1px solid #e2e8f0;
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            margin-top: 0;
            margin-bottom: 0.8rem;
            color: #0f1a2e;
            border-bottom: 2px solid #ffd700;
            padding-bottom: 0.4rem;
        }
        .link-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .link-list li {
            padding: 0.5rem 0;
            border-bottom: 1px solid #f0f2f5;
            margin-bottom: 0;
        }
        .link-list li:last-child {
            border-bottom: none;
        }
        .link-list a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: #2b6cb0;
            font-weight: 500;
        }
        .link-list a:hover {
            color: #ff6b00;
            text-decoration: none;
        }
        .link-list a i {
            color: #ff6b00;
            font-size: 0.8rem;
        }
        .search-form {
            display: flex;
            gap: 0.4rem;
            margin-top: 0.5rem;
        }
        .search-form input {
            flex: 1;
            padding: 0.7rem 1rem;
            border: 2px solid #dce3ed;
            border-radius: 30px;
            font-size: 0.9rem;
            outline: none;
            transition: border 0.25s;
        }
        .search-form input:focus {
            border-color: #ffd700;
        }
        .search-form button {
            background: #0f1a2e;
            color: #ffd700;
            border: none;
            border-radius: 30px;
            padding: 0.7rem 1.2rem;
            font-size: 0.9rem;
            cursor: pointer;
            transition: background 0.25s;
            font-weight: 600;
        }
        .search-form button:hover {
            background: #1a2a44;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            font-size: 1.6rem;
            margin: 0.5rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #dce3ed;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f6ad55;
        }
        .rating-form textarea {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #dce3ed;
            border-radius: 12px;
            font-size: 0.9rem;
            resize: vertical;
            min-height: 80px;
            font-family: inherit;
            transition: border 0.25s;
        }
        .rating-form textarea:focus {
            border-color: #ffd700;
            outline: none;
        }
        .rating-form .btn-submit {
            background: #0f1a2e;
            color: #ffd700;
            border: none;
            border-radius: 30px;
            padding: 0.7rem 2rem;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            margin-top: 0.5rem;
        }
        .rating-form .btn-submit:hover {
            background: #1a2a44;
        }
        .comment-item {
            padding: 1rem 0;
            border-bottom: 1px solid #eef2f7;
        }
        .comment-item:last-child {
            border-bottom: none;
        }
        .comment-item strong {
            color: #0f1a2e;
        }
        .comment-item .date {
            font-size: 0.8rem;
            color: #718096;
        }
        .comment-item p {
            margin: 0.3rem 0 0 0;
        }
        friend-link {
            display: block;
            padding: 1.5rem 0;
            border-top: 2px solid #e2e8f0;
            margin-top: 2rem;
        }
        friend-link h3 {
            font-size: 1.2rem;
            margin-top: 0;
            margin-bottom: 0.8rem;
            color: #0f1a2e;
        }
        .friend-links-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 1.5rem;
            list-style: none;
            padding: 0;
        }
        .friend-links-list li {
            margin: 0;
        }
        .friend-links-list a {
            color: #2b6cb0;
            font-weight: 500;
        }
        .friend-links-list a:hover {
            color: #ff6b00;
        }
        .site-footer {
            background: #0f1a2e;
            color: #cbd5e0;
            padding: 2rem 0 1.5rem;
            margin-top: 2rem;
            font-size: 0.9rem;
        }
        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 1.5rem;
        }
        .footer-inner .copyright {
            flex: 1;
            min-width: 240px;
        }
        .footer-inner .copyright p {
            color: #cbd5e0;
            margin-bottom: 0.3rem;
        }
        .footer-inner .copyright strong {
            color: #ffd700;
        }
        .footer-links a {
            color: #aac4e0;
            margin: 0 0.5rem 0 0;
        }
        .footer-links a:hover {
            color: #ffd700;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                background: #0f1a2e;
                padding: 0.8rem 0;
                border-radius: 12px;
                margin-top: 0.5rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.7rem 1.2rem;
                border-radius: 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            .hero .sub-title {
                font-size: 1rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .container {
                padding: 0 0.9rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
            .meta-info {
                flex-direction: column;
                gap: 0.3rem;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.4rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .my-logo small {
                font-size: 0.6rem;
            }
            .sidebar-card {
                padding: 1rem;
            }
            .star-rating {
                font-size: 1.3rem;
            }
            table {
                font-size: 0.8rem;
                min-width: 400px;
            }
            table th,
            table td {
                padding: 0.5rem 0.6rem;
            }
        }
        .main-nav {
            transition: all 0.3s ease;
        }
        .scroll-top {
            position: fixed;
            bottom: 1.5rem;
            right: 1.5rem;
            background: #ffd700;
            color: #0f1a2e;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
            cursor: pointer;
            transition: transform 0.25s, opacity 0.25s;
            border: none;
            z-index: 999;
            opacity: 0.8;
        }
        .scroll-top:hover {
            transform: translateY(-4px);
            opacity: 1;
        }
        @media (max-width: 480px) {
            .scroll-top {
                width: 38px;
                height: 38px;
                font-size: 1rem;
                bottom: 1rem;
                right: 1rem;
            }
        }
        .author-bio {
            display: flex;
            align-items: center;
            gap: 1rem;
            background: #eef2f7;
            padding: 1rem 1.5rem;
            border-radius: 12px;
            margin: 1.5rem 0;
        }
        .author-bio .avatar {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: #0f1a2e;
            color: #ffd700;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .author-bio .bio-text strong {
            display: block;
        }
        .author-bio .bio-text p {
            margin: 0.2rem 0 0;
            font-size: 0.9rem;
        }
        .group-badge {
            display: inline-block;
            background: #ffd700;
            color: #0f1a2e;
            font-weight: 700;
            padding: 0.2rem 0.8rem;
            border-radius: 30px;
            font-size: 0.8rem;
            letter-spacing: 0.5px;
        }