* {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        background-color: #f8f9fa;
        color: #333;
        line-height: 1.7;
        display: flex;
        flex-direction: column;
        min-height: 100vh;
    }
    a {
        color: #2a5db0;
        text-decoration: none;
        transition: color 0.3s ease;
    }
    a:hover {
        color: #e63946;
        text-decoration: underline;
    }
    .container {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }
    .site-header {
        background: linear-gradient(135deg, #1a2980, #26d0ce);
        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: 2.2rem;
        font-weight: 800;
        background: linear-gradient(to right, #ffd89b, #19547b);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        text-shadow: 1px 1px 3px rgba(0,0,0,0.2);
    }
    .my-logo a {
        background: none;
        -webkit-text-fill-color: unset;
    }
    .main-nav ul {
        display: flex;
        list-style: none;
        gap: 1.8rem;
    }
    .main-nav a {
        color: white;
        font-weight: 600;
        padding: 0.5rem 0.8rem;
        border-radius: 4px;
        transition: background-color 0.3s;
    }
    .main-nav a:hover {
        background-color: rgba(255,255,255,0.15);
        text-decoration: none;
    }
    .hamburger {
        display: none;
        font-size: 1.8rem;
        background: none;
        border: none;
        color: white;
        cursor: pointer;
    }
    .breadcrumb {
        background-color: #e9ecef;
        padding: 0.8rem 0;
        font-size: 0.9rem;
        margin-bottom: 2rem;
    }
    .breadcrumb ol {
        display: flex;
        list-style: none;
        flex-wrap: wrap;
    }
    .breadcrumb li:not(:last-child)::after {
        content: "›";
        margin: 0 10px;
        color: #6c757d;
    }
    .main-content {
        flex: 1;
        padding: 2rem 0;
    }
    article {
        background-color: white;
        padding: 2.5rem;
        border-radius: 12px;
        box-shadow: 0 5px 20px rgba(0,0,0,0.05);
        margin-bottom: 3rem;
    }
    h1 {
        font-size: 2.8rem;
        color: #1a2980;
        margin-bottom: 1.5rem;
        line-height: 1.2;
        border-bottom: 3px solid #26d0ce;
        padding-bottom: 0.5rem;
    }
    h2 {
        font-size: 2rem;
        color: #2a5db0;
        margin: 2.5rem 0 1.2rem 0;
        padding-left: 0.5rem;
        border-left: 5px solid #e63946;
    }
    h3 {
        font-size: 1.5rem;
        color: #19547b;
        margin: 2rem 0 1rem 0;
    }
    h4 {
        font-size: 1.2rem;
        color: #6c757d;
        margin: 1.5rem 0 0.8rem 0;
    }
    p {
        margin-bottom: 1.5rem;
        text-align: justify;
        font-size: 1.1rem;
    }
    .lead {
        font-size: 1.3rem;
        font-weight: 500;
        color: #1a2980;
        background-color: #f1f8ff;
        padding: 1.5rem;
        border-radius: 8px;
        border-left: 5px solid #26d0ce;
        margin-bottom: 2.5rem;
    }
    .highlight-box {
        background: linear-gradient(to right, #fffde4, #d4fc79);
        border: 1px solid #d4fc79;
        padding: 1.5rem;
        border-radius: 10px;
        margin: 2rem 0;
        box-shadow: 0 4px 8px rgba(212,252,121,0.3);
    }
    .content-img {
        width: 100%;
        max-width: 800px;
        height: auto;
        border-radius: 10px;
        display: block;
        margin: 2rem auto;
        box-shadow: 0 8px 16px rgba(0,0,0,0.1);
        transition: transform 0.5s ease;
    }
    .content-img:hover {
        transform: scale(1.01);
    }
    .caption {
        text-align: center;
        font-style: italic;
        color: #666;
        margin-top: -1.5rem;
        margin-bottom: 2rem;
        font-size: 0.95rem;
    }
    .module {
        background-color: #f8f9fa;
        border: 1px solid #dee2e6;
        border-radius: 10px;
        padding: 2rem;
        margin: 3rem 0;
    }
    .module h2 {
        margin-top: 0;
        color: #e63946;
    }
    .search-form, .comment-form, .rating-form {
        display: grid;
        gap: 1rem;
        margin-top: 1.5rem;
    }
    .form-group {
        display: flex;
        flex-direction: column;
    }
    label {
        font-weight: 600;
        margin-bottom: 0.5rem;
    }
    input, textarea, select {
        padding: 0.8rem;
        border: 1px solid #ced4da;
        border-radius: 6px;
        font-size: 1rem;
        transition: border 0.3s;
    }
    input:focus, textarea:focus, select:focus {
        border-color: #26d0ce;
        outline: none;
        box-shadow: 0 0 0 3px rgba(38,208,206,0.2);
    }
    button, .btn {
        background: linear-gradient(to right, #1a2980, #26d0ce);
        color: white;
        border: none;
        padding: 0.9rem 1.8rem;
        border-radius: 6px;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.3s ease;
        display: inline-block;
        text-align: center;
    }
    button:hover, .btn:hover {
        background: linear-gradient(to right, #26d0ce, #1a2980);
        transform: translateY(-2px);
        box-shadow: 0 6px 12px rgba(0,0,0,0.15);
        text-decoration: none;
    }
    .star-rating {
        display: flex;
        gap: 0.5rem;
        font-size: 1.8rem;
        color: #ffd700;
        cursor: pointer;
        margin: 0.5rem 0;
    }
    .star-rating i:hover {
        transform: scale(1.2);
    }
    .related-links {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 1.5rem;
        margin: 3rem 0;
    }
    .link-card {
        background: white;
        border-radius: 10px;
        padding: 1.5rem;
        box-shadow: 0 4px 8px rgba(0,0,0,0.05);
        transition: transform 0.3s, box-shadow 0.3s;
        border-top: 4px solid #2a5db0;
    }
    .link-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    }
    .link-card h4 {
        margin-top: 0;
        color: #1a2980;
    }
    .site-footer {
        background-color: #212529;
        color: #adb5bd;
        padding: 3rem 0 1.5rem;
        margin-top: auto;
    }
    .footer-container {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 2.5rem;
    }
    .footer-section h3 {
        color: #f8f9fa;
        font-size: 1.3rem;
        margin-bottom: 1.5rem;
        padding-bottom: 0.5rem;
        border-bottom: 2px solid #26d0ce;
    }
    friend-link {
        display: block;
        margin-bottom: 0.8rem;
    }
    friend-link a {
        color: #adb5bd;
    }
    friend-link a:hover {
        color: #26d0ce;
    }
    .copyright {
        text-align: center;
        padding-top: 2rem;
        margin-top: 2rem;
        border-top: 1px solid #495057;
        font-size: 0.9rem;
        color: #6c757d;
    }
    .update-time {
        background-color: #fff3cd;
        color: #856404;
        padding: 0.8rem;
        border-radius: 6px;
        font-size: 0.9rem;
        margin-top: 2rem;
        text-align: center;
        border: 1px solid #ffeaa7;
    }
    @media (max-width: 992px) {
        h1 { font-size: 2.4rem; }
        h2 { font-size: 1.8rem; }
        article { padding: 2rem; }
    }
    @media (max-width: 768px) {
        .header-container {
            flex-wrap: wrap;
        }
        .hamburger {
            display: block;
        }
        .main-nav ul {
            display: none;
            flex-direction: column;
            width: 100%;
            background-color: #1a2980;
            position: absolute;
            top: 100%;
            left: 0;
            padding: 1rem;
            box-shadow: 0 10px 15px rgba(0,0,0,0.1);
        }
        .main-nav.active ul {
            display: flex;
        }
        .main-nav li {
            margin: 0.5rem 0;
        }
        h1 { font-size: 2rem; }
        h2 { font-size: 1.6rem; }
        .container { padding: 0 15px; }
    }
    @media (max-width: 576px) {
        .my-logo { font-size: 1.8rem; }
        article { padding: 1.5rem; }
        .module { padding: 1.5rem; }
        .footer-container { grid-template-columns: 1fr; }
    }