* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
            overflow-x: hidden;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a237e, #4a148c);
            color: white;
            padding: 20px 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: #ff9800;
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: color 0.3s;
        }
        .logo a:hover {
            color: #ffc107;
        }
        .logo .my-logo {
            font-style: italic;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        .breadcrumb {
            margin: 10px 0;
            font-size: 0.9rem;
            color: #ccc;
        }
        .breadcrumb a {
            color: #ffcc80;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .nav-container {
            display: flex;
            align-items: center;
            width: 100%;
            margin-top: 15px;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
            padding: 5px;
        }
        .nav-menu {
            display: flex;
            list-style: none;
            flex: 1;
            justify-content: space-around;
            background: rgba(255,255,255,0.1);
            padding: 15px;
            border-radius: 10px;
            backdrop-filter: blur(5px);
        }
        .nav-menu li {
            margin: 0 10px;
        }
        .nav-menu a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 10px 15px;
            border-radius: 5px;
            transition: all 0.3s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-menu a:hover {
            background: #ff9800;
            color: #1a237e;
            transform: translateY(-3px);
        }
        .search-box {
            display: flex;
            margin-left: 20px;
        }
        .search-box input {
            padding: 10px 15px;
            border: none;
            border-radius: 5px 0 0 5px;
            outline: none;
            width: 200px;
        }
        .search-box button {
            background: #ff9800;
            border: none;
            color: white;
            padding: 10px 15px;
            border-radius: 0 5px 5px 0;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-box button:hover {
            background: #ff5722;
        }
        main {
            padding: 30px 0;
            background: white;
            border-radius: 15px;
            margin: 20px auto;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
        }
        .article-header {
            text-align: center;
            padding: 30px 20px;
            background: linear-gradient(90deg, #e3f2fd, #f3e5f5);
            border-radius: 15px 15px 0 0;
            margin-bottom: 30px;
        }
        h1 {
            font-size: 3.2rem;
            color: #1a237e;
            margin-bottom: 15px;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.1);
        }
        .subtitle {
            font-size: 1.4rem;
            color: #4a148c;
            margin-bottom: 20px;
        }
        .meta {
            display: flex;
            justify-content: center;
            gap: 20px;
            color: #666;
            font-size: 0.95rem;
        }
        .meta i {
            color: #ff9800;
        }
        section {
            margin-bottom: 40px;
            padding: 0 30px;
        }
        h2 {
            font-size: 2.4rem;
            color: #283593;
            border-left: 6px solid #ff9800;
            padding-left: 15px;
            margin: 30px 0 20px;
        }
        h3 {
            font-size: 1.8rem;
            color: #3949ab;
            margin: 25px 0 15px;
            padding-bottom: 8px;
            border-bottom: 2px dashed #c5cae9;
        }
        h4 {
            font-size: 1.4rem;
            color: #5c6bc0;
            margin: 20px 0 10px;
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
            font-size: 1.1rem;
            line-height: 1.8;
        }
        .highlight {
            background: #fff9c4;
            padding: 25px;
            border-radius: 10px;
            border-left: 5px solid #ffb300;
            margin: 25px 0;
            font-weight: 600;
            color: #5d4037;
        }
        .image-container {
            text-align: center;
            margin: 30px 0;
        }
        .image-container img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            box-shadow: 0 8px 16px rgba(0,0,0,0.15);
            transition: transform 0.4s;
        }
        .image-container img:hover {
            transform: scale(1.02);
        }
        .caption {
            font-style: italic;
            color: #757575;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .link-list {
            background: #f5f5f5;
            padding: 20px;
            border-radius: 10px;
            margin: 25px 0;
        }
        .link-list ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 15px;
        }
        .link-list li a {
            color: #1a237e;
            text-decoration: none;
            padding: 12px;
            display: block;
            background: white;
            border-radius: 8px;
            transition: all 0.3s;
            border-left: 4px solid #ff9800;
        }
        .link-list li a:hover {
            background: #e8eaf6;
            transform: translateX(5px);
        }
        .quote {
            font-size: 1.3rem;
            color: #4a148c;
            text-align: center;
            padding: 30px;
            background: #f3e5f5;
            border-radius: 15px;
            margin: 30px 0;
            font-style: italic;
            border: 2px dotted #ab47bc;
        }
        .form-section {
            background: #e8f5e9;
            padding: 30px;
            border-radius: 15px;
            margin-top: 40px;
        }
        .form-group {
            margin-bottom: 25px;
        }
        .form-group label {
            display: block;
            margin-bottom: 10px;
            font-weight: 600;
            color: #2e7d32;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 15px;
            border: 2px solid #c8e6c9;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: #4caf50;
            outline: none;
        }
        .form-row {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .form-row .form-group {
            flex: 1;
            min-width: 250px;
        }
        button[type="submit"] {
            background: linear-gradient(135deg, #4caf50, #2e7d32);
            color: white;
            border: none;
            padding: 18px 35px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s;
            display: block;
            margin: 20px auto;
        }
        button[type="submit"]:hover {
            background: linear-gradient(135deg, #388e3c, #1b5e20);
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.15);
        }
        .rating {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-wrap: wrap;
        }
        .rating input[type="radio"] {
            display: none;
        }
        .rating label {
            font-size: 2rem;
            color: #ffd700;
            cursor: pointer;
            transition: color 0.3s;
        }
        .rating input:checked ~ label {
            color: #ccc;
        }
        .rating label:hover,
        .rating label:hover ~ label {
            color: #ffed85;
        }
        footer {
            background: #263238;
            color: white;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 40px;
            margin-bottom: 30px;
        }
        .footer-section h3 {
            color: #ffcc80;
            border-bottom: 2px solid #546e7a;
            padding-bottom: 10px;
            margin-bottom: 20px;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #b0bec5;
            text-decoration: none;
            transition: color 0.3s;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-links a:hover {
            color: #ff9800;
        }
        friend-link {
            display: block;
            padding: 15px;
            background: #37474f;
            border-radius: 8px;
            margin: 10px 0;
            text-align: center;
        }
        friend-link a {
            color: #80deea;
            font-weight: 600;
            text-decoration: none;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #546e7a;
            color: #b0bec5;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.8rem; }
            h2 { font-size: 2.2rem; }
            .nav-menu {
                flex-direction: column;
                position: fixed;
                top: 120px;
                left: -100%;
                width: 80%;
                background: #1a237e;
                padding: 20px;
                border-radius: 0 15px 15px 0;
                transition: left 0.4s;
                z-index: 999;
            }
            .nav-menu.active {
                left: 0;
            }
            .nav-menu li {
                margin: 10px 0;
            }
            .hamburger {
                display: block;
                order: -1;
            }
            .search-box {
                margin-left: 0;
                margin-top: 15px;
                width: 100%;
            }
            .search-box input {
                width: 100%;
            }
        }
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                align-items: flex-start;
            }
            .logo a {
                font-size: 1.8rem;
            }
            .form-row {
                flex-direction: column;
            }
            section {
                padding: 0 15px;
            }
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .bold {
            font-weight: 800;
            color: #d84315;
        }
        .update-time {
            background: #e1f5fe;
            padding: 15px;
            border-radius: 8px;
            text-align: center;
            font-weight: 600;
            color: #0277bd;
            margin: 20px 0;
        }