* { 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: 100%;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        img { max-width: 100%; height: auto; display: block; }
        header {
            background: linear-gradient(135deg, #1a237e 0%, #4a148c 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            color: #ffd700;
            text-decoration: none;
            font-family: 'Arial Black', sans-serif;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
        }
        .my-logo i { margin-right: 10px; }
        .my-logo:hover { color: #fff; text-shadow: 0 0 8px #ffd700; }
        nav ul {
            display: flex;
            list-style: none;
        }
        nav li { margin-left: 2rem; }
        nav a {
            color: #e0e0ff;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            transition: color 0.3s;
            padding: 5px 0;
            border-bottom: 2px solid transparent;
        }
        nav a:hover, nav a.active {
            color: #ffd700;
            border-bottom-color: #ffd700;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #ffd700;
        }
        .breadcrumb {
            padding: 1rem 0;
            background: #e8eaf6;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #1a237e;
            text-decoration: none;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        .breadcrumb span { color: #666; }
        main { padding: 2rem 0; background: white; }
        article { padding: 2rem; border-radius: 8px; }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 6px solid #ffd700;
            padding-left: 15px;
        }
        h2 {
            font-size: 2rem;
            color: #4a148c;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e0e0ff;
        }
        h3 {
            font-size: 1.6rem;
            color: #311b92;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #5e35b1;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background: #fff8e1;
            border-left: 4px solid #ffd700;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .highlight p:last-child { margin-bottom: 0; }
        strong { color: #1a237e; }
        em { color: #5e35b1; }
        a.content-link {
            color: #1a88ff;
            text-decoration: none;
            font-weight: 600;
            border-bottom: 1px dotted #1a88ff;
        }
        a.content-link:hover {
            color: #0d47a1;
            border-bottom-style: solid;
        }
        .figure {
            margin: 2.5rem auto;
            text-align: center;
            max-width: 800px;
        }
        .figure img {
            border-radius: 10px;
            box-shadow: 0 6px 16px rgba(0,0,0,0.1);
            border: 1px solid #ddd;
        }
        .caption {
            font-style: italic;
            color: #666;
            margin-top: 0.8rem;
            font-size: 0.95rem;
        }
        ul, ol { margin: 1.5rem 0 1.5rem 2rem; }
        li { margin-bottom: 0.7rem; }
        .module {
            background: #f3e5f5;
            border-radius: 10px;
            padding: 2rem;
            margin: 3rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        }
        .module h3 { color: #7b1fa2; margin-top: 0; }
        .search-box, .comment-box, .rating-box {
            margin-top: 1.5rem;
        }
        input, textarea, select {
            width: 100%;
            padding: 12px 15px;
            margin: 8px 0 20px;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            border-color: #7b1fa2;
            outline: none;
            box-shadow: 0 0 0 3px rgba(123, 31, 162, 0.2);
        }
        button {
            background: linear-gradient(to right, #7b1fa2, #1a237e);
            color: white;
            border: none;
            padding: 14px 28px;
            font-size: 1.1rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s;
        }
        button:hover {
            background: linear-gradient(to right, #6a1b9a, #0d1b6a);
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.15);
        }
        .stars {
            display: flex;
            gap: 10px;
            margin: 15px 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active { color: #ffd700; }
        footer {
            background: #1a1a2e;
            color: #ccc;
            padding: 3rem 0 1.5rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: #ffd700;
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
        }
        .footer-links a {
            color: #aaa;
            display: block;
            margin-bottom: 0.8rem;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-links a:hover { color: #ffd700; }
        friend-link {
            display: inline-block;
            background: #2d2d4d;
            padding: 8px 15px;
            margin: 5px;
            border-radius: 4px;
            color: #aaa;
            text-decoration: none;
        }
        friend-link:hover { background: #3d3d6d; color: #fff; }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2d2d4d;
            font-size: 0.9rem;
            color: #888;
        }
        .update-time {
            color: #ff9800;
            font-weight: bold;
            margin-left: 10px;
        }
        @media (max-width: 768px) {
            .header-container { flex-wrap: wrap; }
            nav ul {
                flex-direction: column;
                width: 100%;
                background: #2d2d6e;
                position: absolute;
                top: 100%;
                left: 0;
                display: none;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            nav.active ul { display: flex; }
            nav li { margin: 0; }
            nav a {
                display: block;
                padding: 1rem 2rem;
                border-bottom: 1px solid #3d3d8e;
            }
            .hamburger { display: block; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            article { padding: 1.5rem; }
            .module { padding: 1.5rem; }
        }