* {
            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: 100vw;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul, ol {
            list-style-position: inside;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
        }
        header {
            background: linear-gradient(135deg, #1a237e 0%, #311b92 100%);
            color: #fff;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            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: 800;
            background: linear-gradient(to right, #ffeb3b, #ff9800);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        .my-logo:hover {
            transform: scale(1.03);
        }
        .breadcrumb {
            padding: 12px 0;
            background-color: rgba(255,255,255,0.05);
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #bbdefb;
        }
        .breadcrumb a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .breadcrumb span {
            margin: 0 8px;
            color: #ccc;
        }
        .desktop-nav ul {
            display: flex;
            gap: 30px;
        }
        .desktop-nav a {
            padding: 8px 0;
            font-weight: 600;
            font-size: 1.05rem;
            border-bottom: 3px solid transparent;
        }
        .desktop-nav a:hover,
        .desktop-nav a.active {
            border-bottom-color: #ffeb3b;
            color: #ffeb3b;
        }
        .mobile-nav-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: #1a237e;
            padding: 20px;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            box-shadow: 0 10px 15px rgba(0,0,0,0.2);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            padding: 15px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            font-weight: 600;
        }
        .mobile-nav a:hover {
            background-color: rgba(255,255,255,0.05);
            padding-left: 25px;
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .mobile-nav-toggle {
                display: block;
            }
        }
        .search-container {
            background: #e3f2fd;
            padding: 30px 0;
            margin-bottom: 30px;
            border-radius: 10px;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
        }
        .search-input {
            flex-grow: 1;
            padding: 18px 25px;
            border: none;
            font-size: 1.1rem;
            outline: none;
        }
        .search-button {
            background: linear-gradient(to right, #2196f3, #0d47a1);
            color: white;
            border: none;
            padding: 0 30px;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
        }
        .search-button:hover {
            background: linear-gradient(to right, #0d47a1, #2196f3);
        }
        .content-area {
            background: white;
            padding: 40px;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
        }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 25px;
            line-height: 1.2;
            border-left: 8px solid #ff9800;
            padding-left: 20px;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
        }
        h2 {
            font-size: 2rem;
            color: #311b92;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid #e0e0e0;
        }
        h3 {
            font-size: 1.6rem;
            color: #4527a0;
            margin: 30px 0 15px;
        }
        h4 {
            font-size: 1.3rem;
            color: #5e35b1;
            margin: 25px 0 12px;
        }
        p {
            margin-bottom: 1.5em;
            text-align: justify;
            font-size: 1.1rem;
            color: #444;
        }
        .intro {
            font-size: 1.3rem;
            color: #555;
            background-color: #f5f5f5;
            padding: 25px;
            border-radius: 10px;
            margin-bottom: 30px;
            border-left: 5px solid #4caf50;
        }
        .highlight {
            background-color: #fffde7;
            padding: 20px;
            border-radius: 10px;
            border-left: 5px solid #ffc107;
            margin: 25px 0;
        }
        .quote {
            font-style: italic;
            color: #666;
            border-left: 4px solid #9c27b0;
            padding-left: 20px;
            margin: 25px 0;
        }
        .stats-box {
            background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
            padding: 25px;
            border-radius: 10px;
            margin: 25px 0;
        }
        .btn {
            display: inline-block;
            background: linear-gradient(to right, #ff9800, #f57c00);
            color: white;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 700;
            box-shadow: 0 4px 12px rgba(255,152,0,0.3);
            margin: 10px 0;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 18px rgba(255,152,0,0.4);
        }
        .related-links {
            background: #f3e5f5;
            padding: 25px;
            border-radius: 10px;
            margin: 30px 0;
        }
        .related-links h3 {
            color: #7b1fa2;
        }
        .related-links ul {
            columns: 2;
            column-gap: 40px;
        }
        .related-links li {
            margin-bottom: 12px;
            break-inside: avoid;
        }
        .related-links a {
            color: #7b1fa2;
            font-weight: 600;
        }
        .related-links a:hover {
            text-decoration: underline;
        }
        @media (max-width: 600px) {
            .related-links ul {
                columns: 1;
            }
        }
        .sidebar {
            background: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget {
            margin-bottom: 35px;
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            color: #1a237e;
            padding-bottom: 10px;
            border-bottom: 2px solid #e0e0e0;
            margin-bottom: 20px;
        }
        .update-time {
            background: #e8eaf6;
            padding: 20px;
            border-radius: 10px;
            text-align: center;
        }
        .update-time i {
            color: #4caf50;
            margin-right: 10px;
        }
        .comment-section, .rating-section {
            background: white;
            padding: 40px;
            border-radius: 15px;
            margin-top: 40px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
        }
        .form-group {
            margin-bottom: 25px;
        }
        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #555;
        }
        input, textarea, select {
            width: 100%;
            padding: 15px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            border-color: #2196f3;
            outline: none;
            box-shadow: 0 0 0 3px rgba(33,150,243,0.1);
        }
        .star-rating {
            display: flex;
            gap: 10px;
            font-size: 2rem;
            color: #ffc107;
            cursor: pointer;
            margin-bottom: 20px;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        .submit-btn {
            background: linear-gradient(to right, #4caf50, #2e7d32);
            color: white;
            border: none;
            padding: 16px 40px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 700;
            cursor: pointer;
            display: block;
            margin: 0 auto;
        }
        .submit-btn:hover {
            background: linear-gradient(to right, #2e7d32, #4caf50);
            transform: translateY(-2px);
        }
        footer {
            background: #1a237e;
            color: #e8eaf6;
            margin-top: 60px;
            padding: 50px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            color: #ffeb3b;
            margin-bottom: 20px;
        }
        .footer-links h4 {
            color: #bbdefb;
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .footer-links ul li {
            margin-bottom: 12px;
        }
        .footer-links a:hover {
            color: #ffeb3b;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            margin-top: 20px;
            padding: 15px;
            background: rgba(255,255,255,0.05);
            border-radius: 8px;
        }
        friend-link a {
            color: #bbdefb;
            font-weight: 600;
        }
        friend-link a:hover {
            color: #ffeb3b;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            margin-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #90a4ae;
        }
        .text-center { text-align: center; }
        .mb-20 { margin-bottom: 20px; }
        .mt-30 { margin-top: 30px; }
        .emoji { font-size: 1.2em; }
        .bold { font-weight: 800; color: #1a237e; }