* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary-color: #1e3a8a;
            --secondary-color: #dc2626;
            --accent-color: #f59e0b;
            --text-dark: #1f2937;
            --text-light: #6b7280;
            --bg-light: #f9fafb;
            --bg-white: #ffffff;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-color);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--bg-white);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--primary-color);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo span {
            color: var(--secondary-color);
        }
        .search-box {
            flex-grow: 1;
            max-width: 400px;
            margin: 0 30px;
            position: relative;
        }
        .search-box input {
            width: 100%;
            padding: 12px 20px;
            border: 2px solid #e5e7eb;
            border-radius: 50px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-box input:focus {
            outline: none;
            border-color: var(--primary-color);
        }
        .search-box button {
            position: absolute;
            right: 10px;
            top: 50%;
            transform: translateY(-50%);
            background: var(--primary-color);
            color: white;
            border: none;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-box button:hover {
            background: var(--secondary-color);
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .desktop-nav a {
            font-weight: 600;
            font-size: 1.05rem;
            padding: 5px 0;
            position: relative;
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--accent-color);
            transition: var(--transition);
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .mobile-toggle {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--primary-color);
        }
        .mobile-nav {
            display: none;
            background: var(--bg-white);
            padding: 20px;
            border-top: 2px solid #e5e7eb;
        }
        .mobile-nav.active {
            display: block;
        }
        .mobile-nav ul {
            list-style: none;
        }
        .mobile-nav li {
            margin-bottom: 15px;
        }
        .mobile-nav a {
            font-size: 1.1rem;
            font-weight: 600;
            display: block;
            padding: 10px;
            border-radius: 8px;
        }
        .mobile-nav a:hover {
            background: var(--bg-light);
        }
        .breadcrumb {
            padding: 15px 0;
            background: #f1f5f9;
            font-size: 0.95rem;
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary-color);
        }
        .breadcrumb span {
            margin: 0 8px;
            color: #9ca3af;
        }
        main {
            padding: 40px 0;
        }
        article {
            background: var(--bg-white);
            border-radius: 16px;
            padding: 40px;
            box-shadow: var(--shadow);
            margin-bottom: 40px;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-color);
            margin-bottom: 25px;
            line-height: 1.2;
            border-left: 6px solid var(--accent-color);
            padding-left: 20px;
        }
        h2 {
            font-size: 2.2rem;
            color: var(--text-dark);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid #e5e7eb;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--primary-color);
            margin: 30px 0 15px;
        }
        h4 {
            font-size: 1.4rem;
            color: var(--secondary-color);
            margin: 25px 0 12px;
        }
        p {
            margin-bottom: 22px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            color: var(--text-dark);
            font-weight: 600;
            margin-bottom: 30px;
            padding: 20px;
            background: #f0f9ff;
            border-radius: 10px;
            border-left: 5px solid var(--primary-color);
        }
        .highlight {
            background: linear-gradient(120deg, #fef3c7 0%, #fef3c7 100%);
            padding: 3px 6px;
            border-radius: 4px;
            font-weight: 600;
        }
        .note {
            background: #f0fdf4;
            border-left: 5px solid #10b981;
            padding: 20px;
            margin: 25px 0;
            border-radius: 8px;
        }
        .note h4 {
            color: #059669;
            margin-top: 0;
        }
        .content-img {
            margin: 35px auto;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            max-width: 900px;
        }
        .content-img img {
            width: 100%;
            transition: var(--transition);
        }
        .content-img:hover img {
            transform: scale(1.03);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-light);
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .interactive-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin: 50px 0;
        }
        .comment-box, .rating-box {
            background: var(--bg-white);
            border-radius: 12px;
            padding: 30px;
            box-shadow: var(--shadow);
        }
        .comment-box h3, .rating-box h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .comment-box form, .rating-box form {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        .form-group input, .form-group textarea, .form-group select {
            padding: 14px;
            border: 2px solid #e5e7eb;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus, .form-group textarea:focus, .form-group select:focus {
            outline: none;
            border-color: var(--primary-color);
        }
        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }
        .stars {
            display: flex;
            gap: 10px;
            font-size: 1.8rem;
            color: #e5e7eb;
            cursor: pointer;
            margin: 10px 0;
        }
        .stars i:hover,
        .stars i.active {
            color: var(--accent-color);
        }
        .btn {
            padding: 15px 30px;
            background: var(--primary-color);
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            align-self: flex-start;
        }
        .btn:hover {
            background: var(--secondary-color);
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(220, 38, 38, 0.2);
        }
        .link-list {
            background: #f8fafc;
            padding: 25px;
            border-radius: 12px;
            margin: 40px 0;
        }
        .link-list h3 {
            margin-top: 0;
        }
        .link-list ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
            list-style: none;
        }
        .link-list li {
            padding: 12px 18px;
            background: white;
            border-radius: 8px;
            border-left: 4px solid var(--primary-color);
            transition: var(--transition);
        }
        .link-list li:hover {
            transform: translateX(5px);
            box-shadow: var(--shadow);
        }
        footer {
            background: var(--text-dark);
            color: white;
            padding: 50px 0 20px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            color: white;
            margin-bottom: 20px;
            font-size: 1.4rem;
        }
        .footer-section p {
            color: #d1d5db;
        }
        friend-link {
            display: block;
            margin: 15px 0;
            color: #93c5fd;
        }
        friend-link:hover {
            color: white;
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #4b5563;
            color: #9ca3af;
            font-size: 0.95rem;
        }
        .update-time {
            background: var(--accent-color);
            color: #78350f;
            padding: 10px 20px;
            border-radius: 50px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            margin: 20px 0;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 2rem; }
            .header-top { flex-wrap: wrap; }
            .search-box { order: 3; max-width: 100%; margin: 20px 0 0; }
        }
        @media (max-width: 768px) {
            .mobile-toggle { display: block; }
            .desktop-nav { display: none; }
            .header-top { padding: 15px 0; }
            article { padding: 25px; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.8rem; }
            .interactive-section { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            .container { padding: 0 15px; }
            h1 { font-size: 1.8rem; }
            .btn { width: 100%; }
        }