* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
:root {
    --primary-color: #c62828;
    --secondary-color: #1a237e;
    --accent-color: #ff9800;
    --dark-bg: #121212;
    --light-bg: #f5f5f5;
    --text-light: #ffffff;
    --text-dark: #333333;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}
body {
    background-color: var(--light-bg);
    color: var(--text-dark);
    line-height: 1.7;
    overflow-x: hidden;
}
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
.site-header {
    background-color: var(--dark-bg);
    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;
}
.my-logo {
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--accent-color);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 2px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.my-logo i {
    color: var(--primary-color);
}
.my-logo:hover {
    color: var(--text-light);
    transform: scale(1.02);
    transition: var(--transition);
}
.main-nav {
    display: flex;
    align-items: center;
}
.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
}
.nav-list a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: var(--transition);
}
.nav-list a:hover, .nav-list a.active {
    background-color: var(--primary-color);
    color: var(--text-light);
}
.hamburger {
    display: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--text-light);
}
.breadcrumb {
    background-color: #2c2c2c;
    padding: 0.8rem 0;
    margin-bottom: 2rem;
}
.breadcrumb ol {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    flex-wrap: wrap;
}
.breadcrumb a {
    color: #aaa;
    text-decoration: none;
}
.breadcrumb a:hover {
    color: var(--accent-color);
}
.breadcrumb li:not(:last-child)::after {
    content: '>';
    margin-left: 0.5rem;
    color: #666;
}
.main-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 3rem;
    margin: 2rem 0;
}
.article-content {
    background-color: white;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}
.sidebar {
    background-color: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    align-self: start;
    position: sticky;
    top: 120px;
}
h1 {
    color: var(--secondary-color);
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    border-bottom: 4px solid var(--accent-color);
    padding-bottom: 0.5rem;
}
h2 {
    color: var(--primary-color);
    font-size: 2rem;
    margin: 2.5rem 0 1.2rem;
    padding-left: 0.5rem;
    border-left: 5px solid var(--secondary-color);
}
h3 {
    color: var(--secondary-color);
    font-size: 1.5rem;
    margin: 2rem 0 1rem;
}
h4 {
    color: #555;
    font-size: 1.2rem;
    margin: 1.5rem 0 0.8rem;
}
p {
    margin-bottom: 1.5rem;
    text-align: justify;
    font-size: 1.05rem;
}
.lead {
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--secondary-color);
    background-color: #e8eaf6;
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2.5rem;
    border-left: 5px solid var(--accent-color);
}
.emoji {
    font-size: 1.2em;
    margin: 0 0.2em;
}
.highlight {
    background-color: #fff9c4;
    padding: 0.2em 0.4em;
    border-radius: 3px;
    font-weight: 600;
}
blockquote {
    border-left: 4px solid var(--accent-color);
    padding-left: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    color: #555;
    background-color: #f9f9f9;
    padding: 1.5rem;
    border-radius: 0 8px 8px 0;
}
.content-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 1px dotted var(--primary-color);
    transition: var(--transition);
}
.content-link:hover {
    color: var(--accent-color);
    border-bottom: 1px solid var(--accent-color);
}
.link-list {
    background-color: #f0f0f0;
    padding: 1.5rem;
    border-radius: 8px;
    margin: 2rem 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}
.link-list a {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--secondary-color);
    text-decoration: none;
    padding: 0.5rem;
    border-radius: 4px;
    transition: var(--transition);
}
.link-list a:hover {
    background-color: var(--secondary-color);
    color: white;
    transform: translateX(5px);
}
.link-list i {
    color: var(--primary-color);
}
.featured-image {
    width: 100%;
    border-radius: 12px;
    margin: 2rem 0;
    box-shadow: var(--shadow);
    transition: var(--transition);
}
.featured-image:hover {
    transform: scale(1.005);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}
.image-caption {
    text-align: center;
    font-style: italic;
    color: #666;
    margin-top: 0.5rem;
    font-size: 0.95rem;
}
.form-section {
    background-color: #f8f9fa;
    padding: 2rem;
    border-radius: 10px;
    margin: 3rem 0;
    border: 1px solid #dee2e6;
}
.form-title {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}
.form-group {
    margin-bottom: 1.5rem;
}
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #444;
}
.form-control {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 1rem;
    transition: var(--transition);
}
.form-control:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.2);
}
.btn {
    background-color: var(--secondary-color);
    color: white;
    border: none;
    padding: 0.9rem 2rem;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.btn:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}
.rating {
    display: flex;
    gap: 5px;
    margin: 1rem 0;
}
.rating input { display: none; }
.rating label {
    font-size: 2rem;
    color: #ddd;
    cursor: pointer;
    transition: var(--transition);
}
.rating label:hover,
.rating label:hover ~ label,
.rating input:checked ~ label {
    color: var(--accent-color);
}
.widget {
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #eee;
}
.widget:last-child {
    border-bottom: none;
}
.widget-title {
    color: var(--primary-color);
    margin-bottom: 1.2rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--accent-color);
    display: flex;
    align-items: center;
    gap: 10px;
}
.update-time {
    background-color: #e3f2fd;
    padding: 1rem;
    border-radius: 8px;
    font-weight: 600;
    color: var(--secondary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}
.site-footer {
    background-color: var(--dark-bg);
    color: var(--text-light);
    padding: 3rem 0 1.5rem;
    margin-top: 4rem;
}
.footer-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2.5rem;
}
.footer-logo {
    font-size: 2rem;
    font-weight: 900;
    color: var(--accent-color);
    margin-bottom: 1rem;
}
.footer-links h4 {
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}
.footer-links ul {
    list-style: none;
}
.footer-links a {
    color: #ccc;
    text-decoration: none;
    display: block;
    padding: 0.4rem 0;
    transition: var(--transition);
}
.footer-links a:hover {
    color: white;
    padding-left: 10px;
}
friend-link {
    display: block;
    background-color: #2a2a2a;
    padding: 1.5rem;
    border-radius: 8px;
    margin: 1.5rem 0;
}
friend-link a {
    color: var(--accent-color);
    font-weight: 600;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}
friend-link a:hover {
    text-decoration: underline;
}
.copyright {
    text-align: center;
    padding-top: 2rem;
    margin-top: 2rem;
    border-top: 1px solid #444;
    color: #aaa;
    font-size: 0.9rem;
}
@media (max-width: 992px) {
    .main-content {
        grid-template-columns: 1fr;
    }
    .sidebar {
        position: static;
    }
    h1 {
        font-size: 2.4rem;
    }
    h2 {
        font-size: 1.8rem;
    }
}
@media (max-width: 768px) {
    .header-container {
        flex-wrap: wrap;
    }
    .main-nav {
        width: 100%;
        order: 3;
        margin-top: 1rem;
    }
    .nav-list {
        display: none;
        flex-direction: column;
        width: 100%;
        background-color: var(--dark-bg);
        padding: 1rem;
        border-radius: 8px;
        gap: 0.5rem;
    }
    .nav-list.active {
        display: flex;
    }
    .hamburger {
        display: block;
    }
    .article-content {
        padding: 1.5rem;
    }
    .link-list {
        grid-template-columns: 1fr;
    }
    .footer-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
}
@media print {
    .site-header, .sidebar, .form-section, .site-footer {
        display: none;
    }
    .main-content {
        grid-template-columns: 1fr;
    }
    body {
        font-size: 12pt;
        line-height: 1.5;
    }
    h1 {
        font-size: 18pt;
    }
}