:root {
        --primary-red: #e10600;
        --primary-black: #15151e;
        --primary-silver: #f0f0f0;
        --accent-blue: #00a0de;
        --text-light: #ffffff;
        --text-dark: #333333;
        --shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        --border-radius: 8px;
        --transition: all 0.3s ease;
    }
    * {
        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: var(--text-dark);
        background-color: #fafafa;
        overflow-x: hidden;
    }
    a {
        color: var(--accent-blue);
        text-decoration: none;
        transition: var(--transition);
    }
    a:hover {
        color: var(--primary-red);
        text-decoration: underline;
    }
    .container {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }
    .site-header {
        background-color: var(--primary-black);
        color: var(--text-light);
        padding: 1rem 0;
        position: sticky;
        top: 0;
        z-index: 1000;
        box-shadow: var(--shadow);
    }
    .header-container {
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
    }
    .my-logo {
        font-family: 'Arial Black', sans-serif;
        font-size: 2.2rem;
        font-weight: 900;
        color: var(--primary-red);
        text-transform: uppercase;
        letter-spacing: -1px;
        display: flex;
        align-items: center;
    }
    .my-logo span {
        color: var(--text-light);
        margin-left: 5px;
    }
    .my-logo:hover {
        text-decoration: none;
        opacity: 0.9;
    }
    .main-nav {
        display: flex;
        gap: 1.5rem;
    }
    .main-nav a {
        color: var(--text-light);
        font-weight: 600;
        padding: 0.5rem 0;
        position: relative;
    }
    .main-nav a:after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 0;
        height: 2px;
        background: var(--primary-red);
        transition: var(--transition);
    }
    .main-nav a:hover:after {
        width: 100%;
    }
    .hamburger {
        display: none;
        background: none;
        border: none;
        color: var(--text-light);
        font-size: 1.8rem;
        cursor: pointer;
    }
    .search-form {
        margin-top: 1rem;
        width: 100%;
        display: flex;
    }
    .search-form input {
        flex-grow: 1;
        padding: 0.75rem 1rem;
        border: 2px solid #444;
        border-radius: var(--border-radius) 0 0 var(--border-radius);
        background: #222;
        color: var(--text-light);
        font-size: 1rem;
    }
    .search-form button {
        background: var(--primary-red);
        color: white;
        border: none;
        padding: 0.75rem 1.5rem;
        border-radius: 0 var(--border-radius) var(--border-radius) 0;
        cursor: pointer;
        font-weight: bold;
        transition: var(--transition);
    }
    .search-form button:hover {
        background: #ff1a1a;
    }
    .breadcrumb {
        padding: 1rem 0;
        background: #eee;
        font-size: 0.9rem;
    }
    .breadcrumb a {
        color: var(--primary-black);
    }
    .breadcrumb .separator {
        margin: 0 8px;
        color: #777;
    }
    .content-wrapper {
        display: grid;
        grid-template-columns: 1fr 300px;
        gap: 2.5rem;
        margin: 2rem 0;
    }
    article {
        background: white;
        padding: 2.5rem;
        border-radius: var(--border-radius);
        box-shadow: var(--shadow);
    }
    h1 {
        color: var(--primary-black);
        font-size: 2.8rem;
        margin-bottom: 1.5rem;
        line-height: 1.2;
        border-bottom: 4px solid var(--primary-red);
        padding-bottom: 0.5rem;
    }
    h2 {
        color: var(--primary-red);
        font-size: 2rem;
        margin: 2.5rem 0 1.2rem 0;
        padding-top: 1rem;
        border-top: 1px solid #eee;
    }
    h3 {
        color: var(--primary-black);
        font-size: 1.6rem;
        margin: 2rem 0 1rem 0;
    }
    h4 {
        color: #555;
        font-size: 1.3rem;
        margin: 1.5rem 0 0.8rem 0;
    }
    p {
        margin-bottom: 1.5rem;
        text-align: justify;
    }
    .lead {
        font-size: 1.3rem;
        font-weight: 500;
        color: #444;
        background: #f9f9f9;
        padding: 1.5rem;
        border-left: 5px solid var(--accent-blue);
        border-radius: 0 var(--border-radius) var(--border-radius) 0;
        margin-bottom: 2.5rem;
    }
    .highlight-box {
        background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
        border-left: 5px solid var(--primary-red);
        padding: 1.5rem;
        margin: 2rem 0;
        border-radius: 0 var(--border-radius) var(--border-radius) 0;
    }
    .article-image {
        width: 100%;
        max-width: 800px;
        height: auto;
        border-radius: var(--border-radius);
        margin: 2rem auto;
        display: block;
        box-shadow: var(--shadow);
        transition: var(--transition);
    }
    .article-image:hover {
        transform: scale(1.01);
        box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
    }
    .caption {
        text-align: center;
        font-style: italic;
        color: #666;
        margin-top: 0.5rem;
        font-size: 0.95rem;
    }
    .internal-link-list {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 1rem;
        margin: 2.5rem 0;
        padding: 1.5rem;
        background: #f1f5f9;
        border-radius: var(--border-radius);
    }
    .internal-link-list a {
        display: block;
        padding: 0.8rem;
        background: white;
        border-radius: 6px;
        box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        color: var(--primary-black);
        font-weight: 600;
    }
    .internal-link-list a:hover {
        background: var(--primary-red);
        color: white;
        text-decoration: none;
        transform: translateY(-3px);
    }
    em {
        color: var(--primary-red);
        font-style: normal;
        font-weight: 700;
    }
    strong {
        color: var(--primary-black);
        font-weight: 800;
    }
    .update-time {
        font-size: 0.9rem;
        color: #777;
        text-align: right;
        margin-top: 3rem;
        padding-top: 1rem;
        border-top: 1px dashed #ccc;
    }
    aside {
        background: white;
        padding: 1.5rem;
        border-radius: var(--border-radius);
        box-shadow: var(--shadow);
        align-self: start;
        position: sticky;
        top: 120px;
    }
    .sidebar-widget {
        margin-bottom: 2rem;
    }
    .sidebar-widget h3 {
        font-size: 1.4rem;
        color: var(--primary-black);
        margin-bottom: 1rem;
        padding-bottom: 0.5rem;
        border-bottom: 2px solid var(--primary-silver);
    }
    .user-rating {
        text-align: center;
    }
    .stars {
        font-size: 1.8rem;
        color: gold;
        margin: 1rem 0;
        letter-spacing: 5px;
    }
    .rating-form input, .rating-form select, .rating-form textarea {
        width: 100%;
        padding: 0.8rem;
        margin-bottom: 1rem;
        border: 1px solid #ccc;
        border-radius: 6px;
    }
    .rating-form button {
        width: 100%;
        padding: 0.9rem;
        background: var(--primary-red);
        color: white;
        border: none;
        border-radius: 6px;
        font-weight: bold;
        cursor: pointer;
        transition: var(--transition);
    }
    .rating-form button:hover {
        background: #c40500;
    }
    .comments-section {
        margin-top: 3rem;
        background: white;
        padding: 2rem;
        border-radius: var(--border-radius);
        box-shadow: var(--shadow);
    }
    .comment-form textarea {
        width: 100%;
        min-height: 150px;
        padding: 1rem;
        border: 1px solid #ccc;
        border-radius: var(--border-radius);
        margin-bottom: 1rem;
        font-family: inherit;
    }
    .comment-form input {
        width: 100%;
        padding: 0.8rem;
        margin-bottom: 1rem;
        border: 1px solid #ccc;
        border-radius: 6px;
    }
    .comment-form button {
        background: var(--accent-blue);
        color: white;
        border: none;
        padding: 1rem 2rem;
        border-radius: var(--border-radius);
        cursor: pointer;
        font-weight: bold;
        transition: var(--transition);
    }
    .comment-form button:hover {
        background: #0088cc;
    }
    .site-footer {
        background: var(--primary-black);
        color: var(--text-light);
        padding: 3rem 0 1.5rem 0;
        margin-top: 3rem;
    }
    .footer-content {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 2rem;
        margin-bottom: 2rem;
    }
    friend-link {
        display: block;
        padding: 0.8rem 0;
        border-bottom: 1px solid #444;
        color: #ccc;
    }
    friend-link:hover {
        color: var(--primary-red);
        text-decoration: none;
    }
    .copyright {
        text-align: center;
        padding-top: 1.5rem;
        border-top: 1px solid #444;
        color: #aaa;
        font-size: 0.9rem;
    }
    @media (max-width: 992px) {
        .content-wrapper {
            grid-template-columns: 1fr;
        }
        aside {
            position: static;
        }
        h1 {
            font-size: 2.4rem;
        }
    }
    @media (max-width: 768px) {
        .header-container {
            flex-direction: column;
            align-items: flex-start;
        }
        .main-nav {
            flex-direction: column;
            width: 100%;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease;
            margin-top: 1rem;
        }
        .main-nav.active {
            max-height: 500px;
        }
        .hamburger {
            display: block;
            position: absolute;
            top: 1.5rem;
            right: 20px;
        }
        .search-form {
            margin-top: 1rem;
            width: 100%;
        }
        .my-logo {
            font-size: 1.8rem;
        }
        article {
            padding: 1.5rem;
        }
    }