* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .main-header {
            background: linear-gradient(90deg, #1a3c6b 0%, #0d1f3d 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-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: 1px;
            text-decoration: none;
            color: #ffde00;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            transition: transform 0.3s;
        }
        .logo:hover {
            transform: scale(1.03);
            color: #fff;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-link {
            color: #d4e4ff;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s;
        }
        .nav-link:hover {
            background: rgba(255,255,255,0.15);
            color: white;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: #0d1f3d;
            padding: 1rem;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            box-shadow: 0 6px 12px rgba(0,0,0,0.2);
        }
        .mobile-nav.active {
            display: flex;
        }
        .breadcrumb {
            background: #e9f0f8;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb a {
            color: #1a3c6b;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        .article-main {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
        }
        h1 {
            color: #1a3c6b;
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            line-height: 1.3;
            border-left: 5px solid #ffde00;
            padding-left: 1rem;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }
        }
        h2 {
            color: #0d1f3d;
            font-size: 1.8rem;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e4edf5;
        }
        h3 {
            color: #2a5298;
            font-size: 1.4rem;
            margin: 1.8rem 0 1rem;
        }
        .article-section {
            margin-bottom: 2.2rem;
        }
        .article-section p {
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background: linear-gradient(90deg, #fff9c4 0%, #fff176 100%);
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 4px solid #f57c00;
            margin: 1.5rem 0;
            font-weight: 600;
        }
        .feature-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1rem;
            margin: 1.5rem 0;
        }
        .feature-card {
            background: #f0f7ff;
            padding: 1.2rem;
            border-radius: 8px;
            border: 1px solid #c5d9f0;
            transition: transform 0.3s;
        }
        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
        }
        .article-image {
            width: 100%;
            max-width: 700px;
            height: auto;
            border-radius: 10px;
            margin: 2rem auto;
            display: block;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            transition: transform 0.5s;
        }
        .article-image:hover {
            transform: scale(1.01);
        }
        .sidebar {
            background: white;
            border-radius: 12px;
            padding: 1.8rem;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
            height: fit-content;
            position: sticky;
            top: 120px;
        }
        @media (max-width: 992px) {
            .sidebar {
                position: static;
            }
        }
        .widget {
            margin-bottom: 2.5rem;
        }
        .widget-title {
            color: #1a3c6b;
            font-size: 1.3rem;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #ffde00;
        }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        input, textarea, select {
            padding: 0.9rem;
            border: 1px solid #b0c4de;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #2a5298;
            box-shadow: 0 0 0 3px rgba(42,82,152,0.1);
        }
        .btn {
            background: linear-gradient(90deg, #2a5298 0%, #1a3c6b 100%);
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 6px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s;
            text-align: center;
            text-decoration: none;
            display: inline-block;
        }
        .btn:hover {
            background: linear-gradient(90deg, #1a3c6b 0%, #0d1f3d 100%);
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.15);
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #ffde00;
        }
        .internal-link {
            color: #2a5298;
            text-decoration: none;
            font-weight: 600;
            border-bottom: 1px dashed #2a5298;
            transition: all 0.3s;
        }
        .internal-link:hover {
            color: #0d1f3d;
            border-bottom: 1px solid #0d1f3d;
        }
        .longtail-links {
            background: #0d1f3d;
            padding: 2.5rem 0;
            margin-top: 3rem;
        }
        .web-link {
            display: inline-block;
            margin: 0.8rem 1.5rem;
        }
        .web-link a {
            color: #d4e4ff;
            text-decoration: none;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s;
        }
        .web-link a:hover {
            color: white;
            background: rgba(255,255,255,0.1);
        }
        .main-footer {
            background: #0a1629;
            color: #b0c4de;
            padding: 2.5rem 0;
            text-align: center;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .footer-links a {
            color: #d4e4ff;
            text-decoration: none;
        }
        .footer-links a:hover {
            color: #ffde00;
        }
        .text-center {
            text-align: center;
        }
        .emoji {
            font-size: 1.2em;
            margin: 0 2px;
        }
        .divider {
            height: 1px;
            background: linear-gradient(90deg, transparent, #c5d9f0, transparent);
            margin: 2rem 0;
        }
        @media (max-width: 768px) {
            .article-main, .sidebar {
                padding: 1.5rem;
            }
            .feature-list {
                grid-template-columns: 1fr;
            }
            .web-link {
                display: block;
                margin: 0.5rem 0;
                text-align: center;
            }
        }