* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}
html {
    scroll-behavior: smooth;
}
body {
    background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
    color: #2c3e50;
    line-height: 1.7;
    overflow-x: hidden;
}
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}
.main-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
    margin-top: 30px;
}
@media (max-width: 1024px) {
    .main-grid {
        grid-template-columns: 1fr;
    }
}
.site-header {
    background: linear-gradient(90deg, #1a237e 0%, #283593 50%, #3949ab 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 4px 12px rgba(26, 35, 126, 0.2);
    position: sticky;
    top: 0;
    z-index: 1000;
}
.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.my-logo {
    font-size: 2.2rem;
    font-weight: 800;
    text-decoration: none;
    color: #ffeb3b;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    letter-spacing: -0.5px;
    transition: all 0.3s ease;
}
.my-logo:hover {
    color: #fff;
    transform: scale(1.03);
}
.nav-desktop ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}
.nav-desktop a {
    color: #e3f2fd;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.05rem;
    padding: 8px 12px;
    border-radius: 6px;
    transition: all 0.3s ease;
}
.nav-desktop a:hover,
.nav-desktop a.active {
    background-color: rgba(255, 255, 255, 0.15);
    color: #ffeb3b;
}
.hamburger {
    display: none;
    font-size: 1.8rem;
    background: none;
    border: none;
    color: white;
    cursor: pointer;
}
.nav-mobile {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: #283593;
    padding: 1rem;
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}
.nav-mobile.active {
    display: block;
}
.nav-mobile ul {
    list-style: none;
}
.nav-mobile li {
    margin: 1rem 0;
}
.nav-mobile a {
    color: white;
    text-decoration: none;
    font-size: 1.2rem;
    display: block;
    padding: 10px;
    border-radius: 6px;
}
.nav-mobile a:hover {
    background-color: rgba(255,255,255,0.1);
}
@media (max-width: 768px) {
    .nav-desktop {
        display: none;
    }
    .hamburger {
        display: block;
    }
}
.breadcrumb {
    padding: 15px 0;
    font-size: 0.95rem;
    color: #546e7a;
}
.breadcrumb a {
    color: #3949ab;
    text-decoration: none;
}
.breadcrumb a:hover {
    text-decoration: underline;
}
.main-content {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    margin-bottom: 40px;
}
.article-header {
    border-bottom: 3px solid #ffeb3b;
    padding-bottom: 25px;
    margin-bottom: 40px;
}
.article-header h1 {
    font-size: 2.8rem;
    color: #1a237e;
    line-height: 1.2;
    margin-bottom: 15px;
}
.last-updated {
    color: #78909c;
    font-style: italic;
    margin-top: 10px;
}
.content-section {
    margin-bottom: 50px;
}
h2 {
    font-size: 2rem;
    color: #283593;
    margin: 30px 0 20px;
    padding-bottom: 10px;
    border-bottom: 2px dashed #c5cae9;
}
h3 {
    font-size: 1.6rem;
    color: #3949ab;
    margin: 25px 0 15px;
}
h4 {
    font-size: 1.3rem;
    color: #5c6bc0;
    margin: 20px 0 10px;
}
p {
    margin-bottom: 1.2em;
    font-size: 1.1rem;
    text-align: justify;
}
strong {
    color: #1a237e;
    font-weight: 700;
}
em {
    color: #e91e63;
}
.insight-box {
    background: #e8f4fd;
    border-left: 5px solid #2196f3;
    padding: 20px;
    margin: 25px 0;
    border-radius: 0 10px 10px 0;
}
.quote {
    font-style: italic;
    background: #fff8e1;
    padding: 20px;
    border-radius: 10px;
    margin: 25px 0;
    border-left: 5px solid #ffb300;
}
.article-image {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    margin: 25px auto;
    display: block;
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    transition: transform 0.5s ease;
}
.article-image:hover {
    transform: scale(1.01);
}
.img-caption {
    text-align: center;
    font-style: italic;
    color: #757575;
    margin-top: -15px;
    margin-bottom: 30px;
}
.internal-link {
    color: #1a237e;
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 3px;
}
.internal-link:hover {
    color: #ff5722;
}
.sidebar {
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.06);
    align-self: start;
    position: sticky;
    top: 120px;
}
.widget {
    margin-bottom: 35px;
}
.widget h3 {
    font-size: 1.4rem;
    color: #1a237e;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #ffeb3b;
}
.search-form {
    display: flex;
}
.search-form input {
    flex: 1;
    padding: 12px 15px;
    border: 2px solid #c5cae9;
    border-radius: 8px 0 0 8px;
    font-size: 1rem;
}
.search-form button {
    background: #3949ab;
    color: white;
    border: none;
    padding: 0 20px;
    border-radius: 0 8px 8px 0;
    cursor: pointer;
    transition: background 0.3s;
}
.search-form button:hover {
    background: #283593;
}
.rating-widget {
    text-align: center;
}
.stars {
    font-size: 2rem;
    color: #ffd600;
    margin: 15px 0;
    cursor: pointer;
}
.stars i:hover {
    transform: scale(1.2);
}
.related-links ul {
    list-style: none;
}
.related-links li {
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px dotted #e0e0e0;
}
.related-links a {
    color: #3949ab;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: color 0.3s;
}
.related-links a:hover {
    color: #ff9800;
}
.related-links i {
    color: #ff9800;
}
.comment-section {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    margin-bottom: 40px;
}
.comment-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #37474f;
}
.comment-form input,
.comment-form textarea {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 20px;
    border: 2px solid #c5cae9;
    border-radius: 8px;
    font-size: 1rem;
    transition: border 0.3s;
}
.comment-form input:focus,
.comment-form textarea:focus {
    border-color: #3949ab;
    outline: none;
}
.comment-form button {
    background: linear-gradient(90deg, #ff9800, #ff5722);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}
.comment-form button:hover {
    transform: translateY(-3px);
    box-shadow: 0 7px 15px rgba(255, 87, 34, 0.3);
}
.site-footer {
    background: #1a237e;
    color: #e3f2fd;
    padding: 50px 0 30px;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}
.footer-widget h4 {
    color: #ffeb3b;
    margin-bottom: 20px;
    font-size: 1.3rem;
}
.footer-links {
    list-style: none;
}
.footer-links li {
    margin-bottom: 12px;
}
.footer-links a {
    color: #bbdefb;
    text-decoration: none;
    transition: color 0.3s;
}
.footer-links a:hover {
    color: #ffeb3b;
    padding-left: 5px;
}
friend-link {
    display: inline-block;
    background: rgba(255, 255, 255, 0.1);
    padding: 8px 15px;
    border-radius: 6px;
    margin: 5px 10px 5px 0;
    transition: all 0.3s;
}
friend-link a {
    color: #ffcc80;
    text-decoration: none;
    font-weight: 600;
}
friend-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}
.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #3949ab;
    color: #90a4ae;
    font-size: 0.95rem;
}
@media (max-width: 768px) {
    .main-content,
    .sidebar,
    .comment-section {
        padding: 25px;
    }
    .article-header h1 {
        font-size: 2.2rem;
    }
    h2 {
        font-size: 1.8rem;
    }
    h3 {
        font-size: 1.5rem;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
}