*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            background: #f5f7fa;
            color: #1a1a2e;
            line-height: 1.8;
            padding: 0;
            margin: 0;
        }
        a {
            color: #0066cc;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #004499;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        strong {
            font-weight: 700;
            color: #0d1b2a;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
            color: #0d1b2a;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.5rem;
        }
        h2 {
            font-size: 1.8rem;
            border-bottom: 3px solid #4a90d9;
            padding-bottom: 0.4rem;
        }
        h3 {
            font-size: 1.4rem;
        }
        h4 {
            font-size: 1.15rem;
            color: #2c3e50;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0d1b2a 0%, #1b2838 100%);
            color: #fff;
            padding: 0.8rem 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: 1.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #f9d423, #f7971e);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: transform 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
        }
        .my-logo i {
            background: #f9d423;
            color: #0d1b2a;
            -webkit-text-fill-color: #0d1b2a;
            font-size: 1.6rem;
            padding: 0.3rem;
            border-radius: 8px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 1.2rem;
        }
        .main-nav a {
            color: #e0e6ed;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.4rem 0.2rem;
            border-bottom: 2px solid transparent;
            transition: all 0.2s ease;
        }
        .main-nav a:hover {
            color: #f9d423;
            border-bottom-color: #f9d423;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.6rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background: #eef2f7;
            padding: 0.7rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #dce3ed;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            color: #7f8c8d;
            font-weight: 600;
            margin-right: 0.4rem;
        }
        .breadcrumb a {
            color: #2c3e50;
        }
        .breadcrumb a:hover {
            color: #0066cc;
        }
        .breadcrumb .current {
            color: #7f8c8d;
            font-weight: 500;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            padding: 2rem 0;
        }
        @media (min-width: 992px) {
            .main-grid {
                grid-template-columns: 1fr 320px;
            }
        }
        .article-body {
            background: #fff;
            border-radius: 16px;
            padding: 2rem 2.2rem;
            box-shadow: 0 6px 30px rgba(0, 0, 0, 0.04);
        }
        .article-body .last-updated {
            font-size: 0.85rem;
            color: #7f8c8d;
            background: #f0f4f9;
            padding: 0.4rem 1rem;
            border-radius: 30px;
            display: inline-block;
            margin-bottom: 1.2rem;
        }
        .article-body .last-updated i {
            margin-right: 0.4rem;
        }
        .featured-image {
            margin: 1.6rem 0 2rem 0;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08);
        }
        .featured-image img {
            width: 100%;
            height: auto;
            display: block;
        }
        .featured-image figcaption {
            padding: 0.8rem 1rem;
            background: #f8faff;
            font-size: 0.9rem;
            color: #4a5568;
            border-top: 1px solid #e8edf5;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 14px;
            padding: 1.5rem 1.6rem;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.04);
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            margin-top: 0;
            margin-bottom: 1rem;
            border-bottom: 2px solid #e8edf5;
            padding-bottom: 0.5rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-card li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f0f3f8;
            margin: 0;
        }
        .sidebar-card li:last-child {
            border-bottom: none;
        }
        .sidebar-card a {
            color: #2c3e50;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .sidebar-card a:hover {
            color: #0066cc;
            text-decoration: none;
        }
        .sidebar-card a i {
            width: 1.2rem;
            color: #4a90d9;
        }
        .search-form {
            display: flex;
            gap: 0.5rem;
            margin-top: 0.5rem;
        }
        .search-form input {
            flex: 1;
            padding: 0.7rem 1rem;
            border: 2px solid #dce3ed;
            border-radius: 30px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
        }
        .search-form input:focus {
            border-color: #4a90d9;
        }
        .search-form button {
            background: #4a90d9;
            color: #fff;
            border: none;
            border-radius: 30px;
            padding: 0.7rem 1.2rem;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s ease;
        }
        .search-form button:hover {
            background: #357abd;
        }
        .comment-section,
        .rating-section {
            background: #fff;
            border-radius: 14px;
            padding: 1.8rem 2rem;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.04);
            margin-top: 2rem;
        }
        .comment-section h2,
        .rating-section h2 {
            border-bottom: none;
            margin-top: 0;
            font-size: 1.5rem;
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid #dce3ed;
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: inherit;
            outline: none;
            transition: border 0.2s;
            margin-bottom: 0.8rem;
        }
        .comment-form textarea:focus,
        .comment-form input:focus {
            border-color: #4a90d9;
        }
        .comment-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .comment-form .btn,
        .rating-form .btn {
            background: #4a90d9;
            color: #fff;
            border: none;
            border-radius: 30px;
            padding: 0.7rem 2rem;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s ease;
        }
        .comment-form .btn:hover,
        .rating-form .btn:hover {
            background: #357abd;
        }
        .rating-stars {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.3rem;
            font-size: 2rem;
            margin: 0.6rem 0 1rem 0;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            cursor: pointer;
            color: #dce3ed;
            transition: color 0.15s;
        }
        .rating-stars label:hover,
        .rating-stars label:hover~label,
        .rating-stars input:checked~label {
            color: #f9d423;
        }
        .rating-form .current-rating {
            font-size: 0.95rem;
            color: #4a5568;
            margin-bottom: 0.8rem;
        }
        friend-link {
            display: block;
            background: #1b2838;
            color: #e0e6ed;
            padding: 2rem 0;
            margin-top: 2.5rem;
            border-top: 4px solid #4a90d9;
        }
        friend-link .container {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem 2.5rem;
            justify-content: center;
        }
        friend-link a {
            color: #b0c4de;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.2s;
            position: relative;
        }
        friend-link a:hover {
            color: #f9d423;
            text-decoration: none;
        }
        friend-link a::after {
            content: "•";
            color: #4a6a8a;
            margin-left: 1.2rem;
        }
        friend-link a:last-child::after {
            display: none;
        }
        friend-link .fl-title {
            width: 100%;
            text-align: center;
            font-size: 0.9rem;
            color: #8aa0b8;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 0.6rem;
        }
        .site-footer {
            background: #0d1b2a;
            color: #a0b4c8;
            padding: 1.8rem 0;
            text-align: center;
            font-size: 0.9rem;
        }
        .site-footer p {
            margin: 0.3rem 0;
        }
        .site-footer a {
            color: #8ab4f8;
        }
        .site-footer a:hover {
            color: #f9d423;
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                gap: 0.8rem;
                padding: 1rem 0 0.5rem 0;
                border-top: 1px solid rgba(255, 255, 255, 0.08);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                font-size: 1rem;
                width: 100%;
                padding: 0.4rem 0;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .article-body {
                padding: 1.2rem 1rem;
            }
            .sidebar-card {
                padding: 1.2rem;
            }
            .comment-section,
            .rating-section {
                padding: 1.2rem 1rem;
            }
            .rating-stars {
                font-size: 1.6rem;
            }
            friend-link .container {
                flex-direction: column;
                align-items: center;
                gap: 0.8rem;
            }
            friend-link a::after {
                display: none;
            }
            .breadcrumb ol {
                font-size: 0.8rem;
                gap: 0.2rem 0.5rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.8rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo i {
                font-size: 1.2rem;
            }
            h1 {
                font-size: 1.5rem;
            }
            .search-form {
                flex-direction: column;
                gap: 0.6rem;
            }
            .search-form button {
                width: 100%;
            }
        }
        .text-sm {
            font-size: 0.9rem;
            color: #4a5568;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .highlight-box {
            background: #f0f7ff;
            border-left: 4px solid #4a90d9;
            padding: 1.2rem 1.5rem;
            border-radius: 0 10px 10px 0;
            margin: 1.6rem 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .emoji-lg {
            font-size: 1.4rem;
        }
        .inline-icon {
            margin-right: 0.4rem;
            color: #4a90d9;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        table th,
        table td {
            padding: 0.7rem 1rem;
            border: 1px solid #dce3ed;
            text-align: left;
        }
        table th {
            background: #f0f4f9;
            font-weight: 600;
        }
        table tr:nth-child(even) {
            background: #fafcff;
        }
        .sidebar-card a,
        .main-nav a,
        .btn,
        .search-form button,
        .rating-stars label {
            transition: all 0.2s ease;
        }