* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.7;
            color: #2c3e50;
            background: #f8f6ff;
            font-size: 16px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #6c5ce7, #a855f7);
            color: #fff;
            padding: 20px 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 15px;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            text-decoration: none;
            letter-spacing: -1px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }
        .my-logo span {
            color: #ffd700;
        }
        .main-nav {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #fff;
            text-decoration: none;
            padding: 8px 18px;
            border-radius: 30px;
            background: rgba(255, 255, 255, 0.15);
            font-weight: 500;
            font-size: 0.9rem;
            transition: all 0.3s;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.35);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            background: none;
            border: none;
            color: #fff;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: rgba(0, 0, 0, 0.1);
                border-radius: 12px;
                padding: 15px;
            }
            .main-nav.active {
                display: flex;
            }
            .main-nav a {
                padding: 12px 20px;
                font-size: 1rem;
            }
        }
        .breadcrumb {
            background: transparent;
            padding: 15px 0;
            font-size: 0.85rem;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .breadcrumb li::after {
            content: "›";
            margin-left: 6px;
            color: #999;
        }
        .breadcrumb li:last-child::after {
            content: "";
        }
        .breadcrumb a {
            color: #6c5ce7;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .current {
            color: #333;
            font-weight: 600;
        }
        .search-bar {
            background: #fff;
            border-radius: 50px;
            padding: 8px 16px;
            display: flex;
            align-items: center;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
            max-width: 400px;
            margin: 15px auto;
        }
        .search-bar input {
            border: none;
            outline: none;
            flex: 1;
            font-size: 0.95rem;
            padding: 6px 10px;
            background: transparent;
        }
        .search-bar button {
            background: #6c5ce7;
            color: #fff;
            border: none;
            border-radius: 50%;
            width: 36px;
            height: 36px;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-bar button:hover {
            background: #a855f7;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 30px;
            padding: 30px 0;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: #fff;
            border-radius: 16px;
            padding: 30px;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
        }
        .article-content h1 {
            font-size: 2.4rem;
            color: #6c5ce7;
            line-height: 1.3;
            margin-bottom: 15px;
            border-bottom: 3px solid #ffd700;
            padding-bottom: 10px;
        }
        .article-content h2 {
            font-size: 1.8rem;
            color: #5a4bd1;
            margin: 40px 0 15px;
            padding-left: 12px;
            border-left: 5px solid #ffd700;
        }
        .article-content h3 {
            font-size: 1.3rem;
            color: #7c6cf6;
            margin: 25px 0 10px;
        }
        .article-content h4 {
            font-size: 1.1rem;
            color: #555;
            margin: 18px 0 8px;
            font-weight: 600;
        }
        .article-content p {
            margin-bottom: 16px;
            text-align: justify;
        }
        .article-content ul,
        .article-content ol {
            margin: 15px 0 20px 20px;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            margin: 20px 0;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        }
        .highlight-box {
            background: linear-gradient(135deg, #f0ecff, #faf6ff);
            border-left: 4px solid #6c5ce7;
            border-radius: 8px;
            padding: 20px;
            margin: 20px 0;
        }
        .stat-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 15px;
            margin: 20px 0;
        }
        .stat-item {
            background: #f8f6ff;
            border-radius: 12px;
            padding: 20px 10px;
            text-align: center;
            border: 1px solid #eee;
        }
        .stat-item .value {
            font-size: 2.2rem;
            font-weight: 800;
            color: #6c5ce7;
        }
        .stat-item .label {
            font-size: 0.85rem;
            color: #777;
            margin-top: 5px;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .widget {
            background: #fff;
            border-radius: 12px;
            padding: 20px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
        }
        .widget h3 {
            font-size: 1.1rem;
            color: #6c5ce7;
            margin-bottom: 12px;
            border-bottom: 2px solid #f0ecff;
            padding-bottom: 8px;
        }
        .widget ul {
            list-style: none;
        }
        .widget ul li {
            margin-bottom: 8px;
            padding: 6px 0;
            border-bottom: 1px dashed #eee;
        }
        .widget ul li a {
            color: #444;
            text-decoration: none;
            transition: color 0.3s;
        }
        .widget ul li a:hover {
            color: #6c5ce7;
        }
        .feedback-section {
            margin-top: 40px;
            border-top: 2px solid #f0ecff;
            padding-top: 25px;
        }
        .rating-form,
        .comment-form {
            background: #faf6ff;
            border-radius: 12px;
            padding: 20px;
            margin-bottom: 20px;
        }
        .rating-form h3,
        .comment-form h3 {
            color: #6c5ce7;
            margin-bottom: 10px;
        }
        .star-rating {
            display: flex;
            gap: 8px;
            font-size: 1.5rem;
            color: #ddd;
            cursor: pointer;
            margin: 10px 0;
        }
        .star-rating i.active {
            color: #ffd700;
        }
        .form-group {
            margin-bottom: 15px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 5px;
            font-size: 0.9rem;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 10px 14px;
            border: 2px solid #e8e4f0;
            border-radius: 8px;
            font-size: 0.95rem;
            transition: border-color 0.3s;
            background: #fff;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: #6c5ce7;
        }
        .btn {
            background: linear-gradient(135deg, #6c5ce7, #a855f7);
            color: #fff;
            border: none;
            padding: 12px 30px;
            border-radius: 30px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(108, 92, 231, 0.4);
        }
        .site-footer {
            background: #2d2b3a;
            color: #aab;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }
        .footer-inner h3 {
            color: #ffd700;
            margin-bottom: 15px;
            font-size: 1.1rem;
        }
        .footer-inner a {
            color: #ccd;
            text-decoration: none;
            display: block;
            margin-bottom: 6px;
        }
        .footer-inner a:hover {
            color: #ffd700;
        }
        .copyright {
            text-align: center;
            padding-top: 25px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 30px;
            color: #889;
            font-size: 0.85rem;
        }
        friend-link {
            display: block;
            margin-top: 15px;
            padding: 10px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 8px;
            font-size: 0.9rem;
        }
        friend-link a {
            color: #ffd700;
            text-decoration: none;
        }
        .updated-badge {
            display: inline-block;
            background: #ffd700;
            color: #333;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 15px;
        }
        .toc {
            background: #f8f6ff;
            border-radius: 12px;
            padding: 20px;
            margin: 20px 0;
            border: 1px solid #ece8f5;
        }
        .toc h4 {
            color: #6c5ce7;
            margin-bottom: 10px;
        }
        .toc ul {
            list-style: none;
            margin: 0;
        }
        .toc ul li {
            margin-bottom: 6px;
            padding-left: 12px;
            border-left: 2px solid #d8d0f4;
        }
        .toc ul li a {
            text-decoration: none;
            color: #555;
        }
        .toc ul li a:hover {
            color: #6c5ce7;
        }
        @media (max-width: 576px) {
            .article-content {
                padding: 18px;
            }
            .article-content h1 {
                font-size: 1.8rem;
            }
            .article-content h2 {
                font-size: 1.4rem;
            }
            .article-content h3 {
                font-size: 1.2rem;
            }
        }