* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f8f9fa;
            max-width: 1920px;
            margin: 0 auto;
            overflow-x: hidden;
        }
        a {
            color: #2c5aa0;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        a:hover {
            color: #e63946;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        .container {
            width: 100%;
            padding: 0 20px;
            margin: 0 auto;
        }
        @media (min-width: 1200px) {
            .container {
                max-width: 1140px;
            }
        }
        .site-header {
            background: linear-gradient(135deg, #1a2980 0%, #26d0ce 100%);
            color: white;
            padding: 1.5rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            font-family: 'Arial Black', sans-serif;
            background: linear-gradient(to right, #ffd700, #ff8c00);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            letter-spacing: 1px;
        }
        .my-logo:hover {
            text-decoration: none;
            transform: scale(1.03);
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }
        .nav-desktop a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            text-decoration: none;
        }
        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger-btn {
                display: block;
            }
        }
        .mobile-nav {
            position: fixed;
            top: 80px;
            left: 0;
            width: 100%;
            background-color: #1a2980;
            padding: 2rem;
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            transform: translateY(-100%);
            opacity: 0;
            transition: transform 0.4s ease, opacity 0.4s ease;
            z-index: 999;
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
        }
        .mobile-nav.active {
            transform: translateY(0);
            opacity: 1;
        }
        .mobile-nav a {
            color: white;
            font-size: 1.2rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            padding-bottom: 1rem;
        }
        .mobile-nav a:last-child {
            border-bottom: none;
        }
        .breadcrumb {
            padding: 1rem 20px;
            background-color: #e9ecef;
            font-size: 0.9rem;
            border-bottom: 1px solid #dee2e6;
        }
        .breadcrumb a {
            color: #6c757d;
        }
        .breadcrumb i {
            margin: 0 8px;
            color: #adb5bd;
        }
        .hero {
            background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1549317661-bd32c8ce0db2?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
            color: white;
            text-align: center;
            padding: 5rem 1rem;
            margin-bottom: 3rem;
            border-radius: 0 0 20px 20px;
        }
        .hero h1 {
            font-size: 3.2rem;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.7);
        }
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.5rem;
            }
        }
        .hero p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 2.5rem;
            opacity: 0.9;
        }
        .search-box {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
        }
        .search-box input {
            flex-grow: 1;
            padding: 1.2rem 1.5rem;
            border: none;
            font-size: 1.1rem;
        }
        .search-box button {
            background-color: #e63946;
            color: white;
            border: none;
            padding: 0 2.5rem;
            cursor: pointer;
            font-size: 1.2rem;
            transition: background-color 0.3s;
        }
        .search-box button:hover {
            background-color: #d32f2f;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0 4rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: white;
            padding: 3rem;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
        }
        h1, h2, h3, h4 {
            color: #1a2980;
            margin-top: 2.5rem;
            margin-bottom: 1.2rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 4px solid #26d0ce;
            padding-bottom: 1rem;
        }
        h2 {
            font-size: 2.2rem;
            border-left: 6px solid #e63946;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.8rem;
            color: #2c5aa0;
        }
        h4 {
            font-size: 1.5rem;
            color: #4a6fa5;
        }
        p {
            margin-bottom: 1.8rem;
            text-align: justify;
            hyphens: auto;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: #555;
            background-color: #f1f8ff;
            padding: 1.5rem;
            border-radius: 10px;
            border-left: 5px solid #2c5aa0;
        }
        .highlight {
            background-color: #fffacd;
            padding: 1.5rem;
            border-radius: 10px;
            border: 2px dashed #ffd700;
            margin: 2rem 0;
        }
        .tip {
            background-color: #e0f7fa;
            border-left: 5px solid #00acc1;
            padding: 1.5rem;
            margin: 2rem 0;
        }
        .tip i {
            color: #00acc1;
            margin-right: 10px;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            box-shadow: 0 0 10px rgba(0,0,0,0.05);
        }
        .data-table th, .data-table td {
            border: 1px solid #ddd;
            padding: 1rem;
            text-align: left;
        }
        .data-table th {
            background-color: #1a2980;
            color: white;
        }
        .data-table tr:nth-child(even) {
            background-color: #f9f9f9;
        }
        .data-table tr:hover {
            background-color: #e3f2fd;
        }
        .btn-link {
            display: inline-block;
            background-color: #2c5aa0;
            color: white;
            padding: 0.8rem 1.8rem;
            border-radius: 50px;
            font-weight: bold;
            margin: 1rem 0;
            transition: all 0.3s;
        }
        .btn-link:hover {
            background-color: #e63946;
            text-decoration: none;
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(230, 57, 70, 0.3);
        }
        aside {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
            height: fit-content;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget {
            margin-bottom: 3rem;
        }
        .sidebar-widget h3 {
            font-size: 1.5rem;
            border-bottom: 3px solid #26d0ce;
            padding-bottom: 0.7rem;
            margin-bottom: 1.5rem;
        }
        .related-links ul {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 1rem;
            padding-bottom: 1rem;
            border-bottom: 1px dashed #eee;
        }
        .related-links a {
            display: block;
            padding: 0.8rem;
            border-radius: 8px;
            background-color: #f8f9fa;
            transition: all 0.3s;
        }
        .related-links a:hover {
            background-color: #e9ecef;
            padding-left: 1.2rem;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 2rem;
            color: #ffd700;
            margin: 1rem 0;
            cursor: pointer;
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .comment-form textarea, .rating-form select {
            width: 100%;
            padding: 1rem;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            margin-bottom: 1rem;
        }
        .comment-form button, .rating-form button {
            width: 100%;
            padding: 1rem;
            background-color: #1a2980;
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        .comment-form button:hover, .rating-form button:hover {
            background-color: #e63946;
        }
        footer {
            background-color: #1a2980;
            color: white;
            padding: 4rem 0 2rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: bold;
            color: #26d0ce;
            margin-bottom: 1rem;
        }
        footer h4 {
            color: #ffd700;
            border-bottom: 2px solid #26d0ce;
            padding-bottom: 0.7rem;
            margin-bottom: 1.5rem;
        }
        friend-link {
            display: block;
            background-color: rgba(255,255,255,0.05);
            padding: 1rem;
            margin-bottom: 1rem;
            border-radius: 6px;
            transition: background-color 0.3s;
        }
        friend-link:hover {
            background-color: rgba(255,255,255,0.1);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #aaa;
            font-size: 0.95rem;
        }
        .text-center { text-align: center; }
        .mb-3 { margin-bottom: 3rem; }
        .mt-3 { margin-top: 3rem; }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        .update-time {
            background-color: #ffeaa7;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            display: inline-block;
            font-weight: bold;
            margin-bottom: 2rem;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            article, aside {
                padding: 1.5rem;
            }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            .hero { padding: 3rem 1rem; }
            .main-content { gap: 2rem; }
        }