*,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #1a3a5c;
            --primary-light: #2a5a8c;
            --accent: #f7c948;
            --accent-dark: #e0a800;
            --bg: #f4f7fb;
            --card-bg: #ffffff;
            --text: #1e2a3a;
            --text-light: #4a5a6a;
            --border: #dce3ed;
            --radius: 16px;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--accent-dark);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: var(--primary);
            color: #fff;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            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: 12px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: -0.5px;
            text-transform: uppercase;
            background: linear-gradient(135deg, var(--accent), #ff8c00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: none;
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-menu {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-menu a {
            color: #e8eef4;
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all 0.25s;
            white-space: nowrap;
        }
        .nav-menu a:hover {
            background: var(--accent);
            color: var(--primary);
            text-decoration: none;
        }
        .nav-menu a i {
            margin-right: 6px;
            font-size: 0.85rem;
        }
        .breadcrumb-wrap {
            background: #eef2f7;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            font-size: 0.85rem;
            color: var(--text-light);
            list-style: none;
            padding: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #aab;
            font-weight: 700;
        }
        .breadcrumb a {
            color: var(--primary-light);
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 600;
        }
        .main-wrap {
            padding: 40px 0 60px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
        }
        .article-body h1 {
            font-size: 2.4rem;
            line-height: 1.2;
            color: var(--primary);
            margin-bottom: 8px;
            font-weight: 800;
        }
        .article-body .meta {
            color: var(--text-light);
            font-size: 0.9rem;
            margin-bottom: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .article-body .meta i {
            margin-right: 4px;
        }
        .article-body .meta .last-updated {
            background: var(--accent);
            color: var(--primary);
            padding: 2px 14px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.8rem;
        }
        .article-body h2 {
            font-size: 1.8rem;
            color: var(--primary);
            margin: 48px 0 16px;
            padding-bottom: 8px;
            border-bottom: 4px solid var(--accent);
            font-weight: 700;
        }
        .article-body h3 {
            font-size: 1.35rem;
            color: var(--primary-light);
            margin: 32px 0 12px;
            font-weight: 700;
        }
        .article-body h4 {
            font-size: 1.1rem;
            color: var(--text);
            margin: 24px 0 8px;
            font-weight: 600;
        }
        .article-body p {
            margin-bottom: 18px;
            color: var(--text);
        }
        .article-body ul,
        .article-body ol {
            margin: 12px 0 20px 24px;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body .highlight-box {
            background: linear-gradient(135deg, #f0f6ff, #e8f0fe);
            border-left: 6px solid var(--accent);
            padding: 20px 24px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 24px 0;
        }
        .article-body .highlight-box strong {
            color: var(--primary);
        }
        .article-body .feature-img {
            margin: 28px 0;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .article-body .feature-img figcaption {
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 8px;
            font-style: italic;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .sidebar-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 24px;
            margin-bottom: 24px;
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            color: var(--primary);
            margin-bottom: 12px;
            border-bottom: 2px solid var(--accent);
            padding-bottom: 8px;
        }
        .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:last-child {
            border-bottom: none;
        }
        .sidebar-card ul li a {
            font-size: 0.9rem;
        }
        .sidebar-card ul li a i {
            margin-right: 8px;
            color: var(--accent-dark);
            font-size: 0.8rem;
        }
        .search-box {
            display: flex;
            border-radius: 30px;
            overflow: hidden;
            border: 2px solid var(--border);
            background: #fff;
            transition: border-color 0.2s;
        }
        .search-box:focus-within {
            border-color: var(--accent);
        }
        .search-box input {
            flex: 1;
            border: none;
            padding: 12px 18px;
            font-size: 0.95rem;
            outline: none;
            background: transparent;
            font-family: var(--font);
        }
        .search-box button {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 0 20px;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.2s;
        }
        .search-box button:hover {
            background: var(--primary-light);
        }
        .comment-section,
        .rating-section {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 32px;
            margin-top: 48px;
        }
        .comment-section h2,
        .rating-section h2 {
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 20px;
            border-bottom: 3px solid var(--accent);
            padding-bottom: 8px;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 4px;
            font-size: 0.95rem;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: 10px;
            font-size: 1rem;
            font-family: var(--font);
            transition: border-color 0.2s;
            background: #fafcff;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--accent);
            outline: none;
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .btn {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 32px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.25s;
            font-family: var(--font);
        }
        .btn:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(26, 58, 92, 0.25);
        }
        .btn-accent {
            background: var(--accent);
            color: var(--primary);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            color: var(--primary);
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            direction: rtl;
            justify-content: flex-end;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            transition: color 0.2s;
            color: #ddd;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: var(--accent);
        }
        friend-link {
            display: block;
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px 32px;
            margin-top: 40px;
            border-top: 6px solid var(--accent);
        }
        friend-link h3 {
            font-size: 1.3rem;
            color: var(--primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        friend-link ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 10px 20px;
        }
        friend-link ul li a {
            font-size: 0.95rem;
            background: #f0f4fa;
            padding: 6px 18px;
            border-radius: 30px;
            transition: all 0.2s;
            display: inline-block;
        }
        friend-link ul li a:hover {
            background: var(--accent);
            color: var(--primary);
            text-decoration: none;
        }
        .site-footer {
            background: var(--primary);
            color: #c8d6e5;
            padding: 32px 0;
            margin-top: 48px;
            text-align: center;
            font-size: 0.9rem;
        }
        .site-footer .copyright {
            color: #aab8c8;
        }
        .site-footer a {
            color: var(--accent);
        }
        .site-footer a:hover {
            color: #fff;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .article-body h1 {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                background: var(--primary-light);
                padding: 12px 0;
                border-radius: 12px;
                margin-top: 8px;
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-menu a {
                padding: 10px 20px;
                width: 100%;
                text-align: center;
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .article-body h1 {
                font-size: 1.5rem;
            }
            .article-body h2 {
                font-size: 1.4rem;
            }
            .article-body h3 {
                font-size: 1.15rem;
            }
            .comment-section,
            .rating-section {
                padding: 20px;
            }
            friend-link {
                padding: 20px;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
            .star-rating {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .article-body h1 {
                font-size: 1.3rem;
            }
            .btn {
                width: 100%;
                text-align: center;
            }
            .search-box {
                flex-wrap: wrap;
            }
            .search-box input {
                width: 100%;
                border-radius: 30px 30px 0 0;
            }
            .search-box button {
                width: 100%;
                padding: 12px;
                border-radius: 0 0 30px 30px;
            }
        }