* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary-blue: #1a5f7a;
            --secondary-blue: #57c1e8;
            --accent-yellow: #ffd166;
            --accent-red: #ef476f;
            --dark-bg: #073b4c;
            --light-bg: #f8f9fa;
            --text-dark: #212529;
            --text-light: #e9ecef;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        body {
            background-color: var(--light-bg);
            color: var(--text-dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--primary-blue);
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-red);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--dark-bg), var(--primary-blue));
            color: var(--text-light);
            padding: 1.5rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(to right, var(--secondary-blue), var(--accent-yellow));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -1px;
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            color: var(--text-light);
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
        }
        nav a:hover, nav a.active {
            color: var(--accent-yellow);
            border-bottom-color: var(--accent-yellow);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: var(--text-light);
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #e3f2fd;
            padding: 1rem 0;
            font-size: 0.95rem;
            margin-bottom: 2rem;
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 0.5rem;
            color: var(--primary-blue);
        }
        main {
            padding: 2rem 0;
            min-height: 80vh;
        }
        article {
            background-color: white;
            border-radius: 12px;
            padding: 3rem;
            box-shadow: var(--shadow);
            margin-bottom: 3rem;
        }
        h1 {
            color: var(--dark-bg);
            font-size: 3rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 6px solid var(--accent-red);
            padding-left: 1rem;
        }
        h2 {
            color: var(--primary-blue);
            font-size: 2.2rem;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed var(--secondary-blue);
        }
        h3 {
            color: var(--dark-bg);
            font-size: 1.7rem;
            margin: 2rem 0 1rem;
        }
        h4 {
            color: #555;
            font-size: 1.3rem;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            color: var(--primary-blue);
            font-weight: 600;
            margin-bottom: 2rem;
        }
        .highlight {
            background-color: #fff9db;
            border-left: 4px solid var(--accent-yellow);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .img-container {
            margin: 2.5rem auto;
            text-align: center;
            max-width: 800px;
        }
        .img-container img {
            border-radius: 10px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.1);
            border: 1px solid #ddd;
        }
        .caption {
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .search-box {
            background: linear-gradient(135deg, #f0f8ff, #e1f5fe);
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
            text-align: center;
        }
        .search-box h3 {
            margin-top: 0;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 1.5rem auto 0;
        }
        .search-form input {
            flex-grow: 1;
            padding: 1rem;
            border: 2px solid var(--secondary-blue);
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
        }
        .search-form button {
            background-color: var(--primary-blue);
            color: white;
            border: none;
            padding: 0 1.8rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: var(--dark-bg);
        }
        .user-feedback {
            background-color: #f8f9fa;
            border: 1px solid #dee2e6;
            border-radius: 10px;
            padding: 2.5rem;
            margin: 3rem 0;
        }
        .user-feedback h3 {
            text-align: center;
        }
        .rating-section, .comment-section {
            margin: 2rem 0;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1rem 0;
            font-size: 2rem;
            color: #ddd;
        }
        .stars i {
            cursor: pointer;
            transition: var(--transition);
        }
        .stars i:hover, .stars i.active {
            color: var(--accent-yellow);
        }
        .comment-form textarea {
            width: 100%;
            padding: 1rem;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
            margin: 1rem 0;
            min-height: 150px;
            resize: vertical;
        }
        .btn-submit {
            background-color: var(--accent-red);
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 8px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn-submit:hover {
            background-color: #d6336c;
        }
        footer {
            background-color: var(--dark-bg);
            color: var(--text-light);
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: var(--accent-yellow);
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #b0bec5;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            padding: 1rem;
            border-radius: 6px;
            margin: 0.5rem 0;
            border-left: 3px solid var(--secondary-blue);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #aaa;
        }
        .update-time {
            color: var(--accent-yellow);
            font-weight: bold;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.5rem; }
            h2 { font-size: 2rem; }
            article { padding: 2rem; }
        }
        @media (max-width: 768px) {
            .header-content { flex-direction: column; align-items: flex-start; }
            .my-logo { margin-bottom: 1rem; }
            nav ul { flex-direction: column; gap: 1rem; display: none; width: 100%; }
            nav.active ul { display: flex; }
            .hamburger { display: block; position: absolute; top: 1.5rem; right: 20px; }
            .search-form { flex-direction: column; }
            .search-form input { border-radius: 8px; margin-bottom: 0.5rem; }
            .search-form button { border-radius: 8px; padding: 1rem; }
        }
        @media (max-width: 480px) {
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
            .container { padding: 0 15px; }
            article { padding: 1.5rem; }
        }
        .bold { font-weight: 700; color: var(--dark-bg); }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        .text-center { text-align: center; }
        .mt-3 { margin-top: 3rem; }
        .mb-3 { margin-bottom: 3rem; }