* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
body {
    background-color: #f8f9fa;
    color: #333;
    line-height: 1.7;
    font-size: 1.05rem;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
.site-header {
    background: linear-gradient(135deg, #6a11cb 0%, #2575fc 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: 2.2rem;
    font-weight: 900;
    text-decoration: none;
    color: white;
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: -0.5px;
}
.my-logo i {
    color: #FFD43B;
}
.my-logo span {
    background: linear-gradient(to right, #FFD43B, #FF6B6B);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.main-nav {
    display: flex;
    align-items: center;
}
.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
}
.nav-list a {
    color: white;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.05rem;
    padding: 8px 12px;
    border-radius: 6px;
    transition: all 0.3s ease;
}
.nav-list a:hover, .nav-list a.active {
    background-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}
.hamburger {
    display: none;
    font-size: 1.8rem;
    background: none;
    border: none;
    color: white;
    cursor: pointer;
}
.breadcrumb {
    background-color: #e9ecef;
    padding: 12px 0;
    margin-bottom: 30px;
    border-radius: 0 0 8px 8px;
}
.breadcrumb ol {
    display: flex;
    list-style: none;
    flex-wrap: wrap;
    gap: 10px;
}
.breadcrumb li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #6c757d;
}
.breadcrumb a {
    color: #2575fc;
    text-decoration: none;
}
.breadcrumb li:not(:last-child)::after {
    content: '›';
    font-size: 1.2rem;
}
.main-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
    margin: 30px 0;
}
@media (max-width: 992px) {
    .main-content {
        grid-template-columns: 1fr;
    }
}
.article-content {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.05);
}
.article-header {
    margin-bottom: 35px;
    border-bottom: 2px solid #f1f1f1;
    padding-bottom: 20px;
}
.article-header h1 {
    font-size: 2.8rem;
    color: #2d3748;
    margin-bottom: 15px;
    line-height: 1.2;
}
.meta-info {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    color: #718096;
    font-size: 0.95rem;
}
.meta-info span {
    display: flex;
    align-items: center;
    gap: 8px;
}
.content-section {
    margin-bottom: 45px;
}
.content-section h2 {
    font-size: 2rem;
    color: #4a5568;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #6a11cb;
}
.content-section h3 {
    font-size: 1.6rem;
    color: #2d3748;
    margin: 25px 0 15px;
}
.content-section h4 {
    font-size: 1.3rem;
    color: #4a5568;
    margin: 20px 0 12px;
}
.content-section p {
    margin-bottom: 20px;
    text-align: justify;
}
.content-section emoji {
    font-size: 1.2em;
    margin-right: 5px;
}
.content-section strong {
    color: #2d3748;
    background-color: #fef3c7;
    padding: 2px 6px;
    border-radius: 4px;
}
.content-section a {
    color: #2575fc;
    text-decoration: none;
    border-bottom: 1px dotted #2575fc;
    transition: color 0.3s;
}
.content-section a:hover {
    color: #6a11cb;
    border-bottom-style: solid;
}
.content-section ul, .content-section ol {
    padding-left: 25px;
    margin-bottom: 20px;
}
.content-section li {
    margin-bottom: 10px;
}
.img-container {
    margin: 30px 0;
    text-align: center;
}
.article-img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    border: 1px solid #e2e8f0;
}
.caption {
    font-style: italic;
    color: #718096;
    margin-top: 10px;
    font-size: 0.95rem;
}
.sidebar {
    background: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.05);
    align-self: start;
    position: sticky;
    top: 120px;
}
.widget {
    margin-bottom: 35px;
}
.widget-title {
    font-size: 1.4rem;
    color: #4a5568;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #e2e8f0;
}
.search-form {
    display: flex;
}
.search-form input {
    flex-grow: 1;
    padding: 14px;
    border: 2px solid #e2e8f0;
    border-radius: 8px 0 0 8px;
    font-size: 1rem;
}
.search-form button {
    background: #6a11cb;
    color: white;
    border: none;
    padding: 0 22px;
    border-radius: 0 8px 8px 0;
    cursor: pointer;
    font-size: 1.1rem;
    transition: background 0.3s;
}
.search-form button:hover {
    background: #2575fc;
}
.related-links a {
    display: block;
    padding: 12px 15px;
    margin-bottom: 10px;
    background-color: #f7fafc;
    border-left: 4px solid #6a11cb;
    color: #4a5568;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s;
}
.related-links a:hover {
    background-color: #edf2f7;
    transform: translateX(5px);
}
.download-box {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: 25px;
    border-radius: 10px;
    text-align: center;
}
.download-box h3 {
    color: white;
    margin-bottom: 15px;
}
.download-btn {
    display: inline-block;
    background-color: white;
    color: #f5576c;
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    margin-top: 15px;
    transition: all 0.3s;
}
.download-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 15px rgba(0,0,0,0.2);
}
.interaction-widget {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 12px;
    margin-top: 40px;
}
.interaction-widget h2 {
    color: #4a5568;
    margin-bottom: 25px;
}
.rating-system {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}
.stars {
    display: flex;
    gap: 5px;
}
.star {
    font-size: 1.8rem;
    color: #e2e8f0;
    cursor: pointer;
    transition: color 0.2s;
}
.star:hover,
.star.active {
    color: #FFD43B;
}
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border 0.3s;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #6a11cb;
}
.submit-btn {
    background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
    color: white;
    border: none;
    padding: 16px 35px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}
.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(106, 17, 203, 0.3);
}
.site-footer {
    background: #2d3748;
    color: #cbd5e0;
    padding: 50px 0 25px;
    margin-top: 60px;
}
.footer-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}
@media (max-width: 768px) {
    .footer-container {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 480px) {
    .footer-container {
        grid-template-columns: 1fr;
    }
}
.footer-widget h3 {
    color: white;
    font-size: 1.3rem;
    margin-bottom: 20px;
}
.footer-links a {
    display: block;
    color: #cbd5e0;
    text-decoration: none;
    padding: 8px 0;
    transition: color 0.3s;
}
.footer-links a:hover {
    color: #6a11cb;
    padding-left: 5px;
}
friend-link {
    display: block;
    padding: 10px 15px;
    background-color: rgba(255,255,255,0.05);
    margin-bottom: 10px;
    border-radius: 6px;
    color: #cbd5e0;
    text-decoration: none;
    transition: all 0.3s;
}
friend-link:hover {
    background-color: rgba(106, 17, 203, 0.2);
    color: white;
}
.copyright {
    text-align: center;
    padding-top: 30px;
    margin-top: 30px;
    border-top: 1px solid #4a5568;
    font-size: 0.9rem;
    color: #a0aec0;
}
@media (max-width: 768px) {
    .hamburger {
        display: block;
    }
    .main-nav .nav-list {
        position: fixed;
        top: 80px;
        left: -100%;
        flex-direction: column;
        background: #6a11cb;
        width: 100%;
        padding: 20px;
        transition: left 0.5s ease;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        z-index: 999;
    }
    .main-nav .nav-list.active {
        left: 0;
    }
    .article-header h1 {
        font-size: 2.2rem;
    }
    .content-section h2 {
        font-size: 1.8rem;
    }
    .content-section h3 {
        font-size: 1.4rem;
    }
}