*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, Arial, sans-serif;
            line-height: 1.75;
            color: #2d3436;
            background: #f7f8fa;
        }
        a {
            color: #0984e3;
            text-decoration: none;
            transition: color 0.3s;
        }
        a:hover {
            color: #d63031;
        }
        .site-header {
            background: linear-gradient(135deg, #1a1a2e, #16213e);
            padding: 1rem 2rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 900;
            color: #ffd32a;
            letter-spacing: 2px;
            text-transform: uppercase;
            text-shadow: 2px 2px 0 #000;
        }
        .my-logo:hover {
            color: #ff6b6b;
        }
        .nav-toggle {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #fff;
            cursor: pointer;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 1.5rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #dfe6e9;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            transition: all 0.3s;
            font-size: 0.95rem;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #ffd32a;
        }
        .breadcrumb {
            background: #fff;
            padding: 0.6rem 2rem;
            font-size: 0.9rem;
            border-bottom: 1px solid #eee;
        }
        .breadcrumb a {
            color: #636e72;
        }
        .breadcrumb span {
            color: #b2bec3;
            margin: 0 6px;
        }
        .hero {
            background: linear-gradient(120deg, #1a1a2e, #ff6b6b);
            padding: 3rem 2rem;
            text-align: center;
            color: #fff;
        }
        .hero h1 {
            font-size: clamp(1.8rem, 4vw, 3rem);
            margin-bottom: 0.5rem;
            text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.4);
        }
        .hero p {
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto;
            opacity: 0.95;
        }
        .hero .update-date {
            margin-top: 1rem;
            font-size: 0.9rem;
            background: rgba(255, 255, 255, 0.2);
            display: inline-block;
            padding: 0.3rem 1rem;
            border-radius: 20px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 2rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
        }
        @media(max-width:900px) {
            .container {
                grid-template-columns: 1fr;
                padding: 1rem;
            }
            .main-nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0f0f2e;
                padding: 1rem;
                border-radius: 8px;
                position: absolute;
                top: 80px;
                left: 0;
                z-index: 999;
            }
            .main-nav ul.open {
                display: flex;
            }
            .nav-toggle {
                display: block;
                color: #ffd32a;
            }
            .header-inner {
                position: relative;
            }
        }
        .article-content {
            background: #fff;
            border-radius: 16px;
            padding: 2rem;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
        }
        .article-content h2 {
            font-size: 1.8rem;
            color: #1a1a2e;
            margin: 2.5rem 0 1rem;
            border-left: 4px solid #ffd32a;
            padding-left: 1rem;
        }
        .article-content h3 {
            font-size: 1.4rem;
            color: #2d3436;
            margin: 1.8rem 0 0.8rem;
        }
        .article-content h4 {
            font-size: 1.1rem;
            color: #636e72;
            margin: 1.2rem 0 0.5rem;
            font-weight: 700;
        }
        .article-content p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .article-content ul,
        .article-content ol {
            margin: 1rem 0 1.5rem 2rem;
        }
        .article-content li {
            margin-bottom: 0.5rem;
        }
        .article-content img {
            max-width: 100%;
            border-radius: 12px;
            margin: 1.5rem 0;
            border: 1px solid #eee;
        }
        .article-content blockquote {
            border-left: 4px solid #ffd32a;
            background: #fefae0;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
        }
        .highlight-box {
            background: #e8f4fd;
            border-radius: 12px;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-left: 4px solid #0984e3;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: #f0f5ff;
            border-radius: 12px;
            padding: 1.5rem;
            text-align: center;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
        }
        .stat-card i {
            font-size: 2.5rem;
            color: #ff6b6b;
            margin-bottom: 0.5rem;
        }
        .stat-card .number {
            font-size: 1.8rem;
            font-weight: 900;
            color: #1a1a2e;
        }
        .sidebar {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
            height: fit-content;
            position: sticky;
            top: 20px;
        }
        .sidebar h3 {
            font-size: 1.2rem;
            color: #1a1a2e;
            border-left: 3px solid #ffd32a;
            padding-left: 0.8rem;
            margin-bottom: 1rem;
        }
        .sidebar ul {
            list-style: none;
        }
        .sidebar li {
            margin-bottom: 0.6rem;
        }
        .sidebar a {
            color: #0984e3;
            font-size: 0.95rem;
            border-bottom: 1px solid #f0f0f0;
            display: block;
            padding: 0.4rem 0;
        }
        .sidebar a:hover {
            color: #d63031;
        }
        .search-box {
            background: #f8f9fa;
            border-radius: 12px;
            padding: 1.2rem;
            margin: 2rem 0 1rem;
            display: flex;
            gap: 10px;
        }
        .search-box input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 1px solid #ddd;
            border-radius: 20px;
            font-size: 1rem;
        }
        .search-box button {
            background: #0984e3;
            color: #fff;
            border: none;
            border-radius: 20px;
            padding: 0.8rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .search-box button:hover {
            background: #0366d6;
        }
        .comment-form,
        .rating-form {
            background: #f8f9fa;
            border-radius: 12px;
            padding: 1.5rem;
            margin: 1.5rem 0;
        }
        .comment-form textarea,
        .comment-form input,
        .rating-form select {
            width: 100%;
            padding: 0.8rem;
            margin-bottom: 0.8rem;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
        }
        .comment-form button,
        .rating-form button {
            background: #27ae60;
            color: #fff;
            border: none;
            border-radius: 20px;
            padding: 0.8rem 2rem;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .comment-form button:hover {
            background: #1e8449;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            margin-bottom: 0.8rem;
        }
        .rating-stars .active {
            color: #ffd32a;
        }
        .site-footer {
            background: #1a1a2e;
            color: #dfe6e9;
            padding: 2.5rem 2rem 1rem;
            margin-top: 3rem;
        }
        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-inner h3 {
            color: #ffd32a;
            margin-bottom: 1rem;
        }
        .footer-inner a {
            color: #b2bec3;
            display: block;
            margin-bottom: 0.5rem;
        }
        .footer-inner a:hover {
            color: #ffd32a;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            font-size: 0.9rem;
            color: #b2bec3;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 2rem;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            padding: 1rem;
            border-radius: 12px;
            margin-top: 1rem;
        }
        friend-link a {
            margin-right: 1rem;
            display: inline-block;
        }
        .responsive-img {
            width: 100%;
            height: auto;
        }
        @media(max-width:768px) {
            .article-content {
                padding: 1rem;
            }
            .breadcrumb {
                padding: 0.5rem 1rem;
                font-size: 0.8rem;
            }
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #ffd32a;
            color: #1a1a2e;
            width: 45px;
            height: 45px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
            cursor: pointer;
            transition: all 0.3s;
            z-index: 999;
        }
        .back-to-top:hover {
            transform: scale(1.1);
        }