* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f8f9fc;
            color: #1e2a3a;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: #0057b3;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #ff6b35;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #0a1a2f, #1a3a5c);
            color: #fff;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 26px;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fff;
            background: linear-gradient(90deg, #f9d342, #ff8a5c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 2px 8px rgba(249, 211, 66, 0.2);
        }
        .my-logo small {
            font-size: 14px;
            font-weight: 400;
            -webkit-text-fill-color: #aac;
            display: block;
            letter-spacing: 0.3px;
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 24px;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            border-color: #f9d342;
        }
        nav {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        nav a {
            color: #e0e8f0;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 40px;
            transition: 0.2s;
            font-size: 15px;
            white-space: nowrap;
        }
        nav a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #f9d342;
            text-decoration: none;
        }
        .nav-active {
            background: rgba(249, 211, 66, 0.15);
            color: #f9d342 !important;
        }
        .breadcrumb {
            background: #eef2f7;
            padding: 12px 0;
            font-size: 14px;
            border-bottom: 1px solid #dce3ed;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            align-items: center;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 8px;
            color: #7a8a9e;
        }
        .breadcrumb a {
            color: #0057b3;
        }
        .breadcrumb .current {
            color: #4a5a6e;
            font-weight: 500;
        }
        .hero {
            background: linear-gradient(135deg, #0d2b45 0%, #1b4a6b 100%);
            color: #fff;
            padding: 50px 0 40px;
            margin-bottom: 40px;
            border-radius: 0 0 40px 40px;
        }
        .hero h1 {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.2;
            max-width: 900px;
            margin-bottom: 16px;
        }
        .hero h1 span {
            background: linear-gradient(90deg, #f9d342, #ff8a5c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 18px;
            opacity: 0.9;
            max-width: 700px;
            margin-bottom: 12px;
        }
        .hero-meta {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            font-size: 14px;
            opacity: 0.8;
            margin-top: 20px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 20px 0 50px;
        }
        .main-article h2 {
            font-size: 30px;
            margin: 48px 0 16px;
            color: #0a1a2f;
            border-left: 6px solid #f9d342;
            padding-left: 18px;
        }
        .main-article h3 {
            font-size: 24px;
            margin: 36px 0 12px;
            color: #1a3a5c;
        }
        .main-article h4 {
            font-size: 20px;
            margin: 28px 0 10px;
            color: #2a4a6c;
        }
        .main-article p {
            margin-bottom: 18px;
            color: #2d3a4a;
        }
        .main-article ul,
        .main-article ol {
            margin: 12px 0 20px 24px;
        }
        .main-article li {
            margin-bottom: 8px;
        }
        .main-article .highlight-box {
            background: #eef6ff;
            border-left: 6px solid #0057b3;
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .main-article .highlight-box strong {
            color: #0057b3;
        }
        .main-article .emoji-big {
            font-size: 28px;
            margin-right: 8px;
        }
        .featured-image {
            margin: 30px 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
            background: #dce3ed;
            aspect-ratio: 16/9;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #1a3a5c, #2a5a7c);
            color: #fff;
            font-size: 18px;
            text-align: center;
            padding: 20px;
        }
        .featured-image .img-placeholder {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
        }
        .featured-image .img-placeholder i {
            font-size: 64px;
            color: #f9d342;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            margin-bottom: 24px;
            border: 1px solid #e8edf4;
        }
        .sidebar-card h3 {
            font-size: 18px;
            margin-bottom: 14px;
            color: #0a1a2f;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card li {
            margin-bottom: 10px;
        }
        .sidebar-card li a {
            display: block;
            padding: 8px 12px;
            background: #f4f7fc;
            border-radius: 8px;
            font-size: 14px;
            transition: 0.2s;
        }
        .sidebar-card li a:hover {
            background: #e0eaf5;
            text-decoration: none;
        }
        .search-form {
            display: flex;
            gap: 8px;
        }
        .search-form input {
            flex: 1;
            padding: 12px 16px;
            border: 2px solid #dce3ed;
            border-radius: 40px;
            font-size: 15px;
            outline: none;
            transition: 0.2s;
        }
        .search-form input:focus {
            border-color: #0057b3;
        }
        .search-form button {
            padding: 12px 22px;
            background: #0057b3;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .search-form button:hover {
            background: #003d7a;
        }
        .feedback-section {
            background: #fff;
            border-radius: 20px;
            padding: 32px;
            margin: 40px 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            border: 1px solid #e8edf4;
        }
        .feedback-section h2 {
            border-left: 6px solid #f9d342;
            padding-left: 16px;
            margin-bottom: 24px;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 6px;
            font-size: 15px;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #dce3ed;
            border-radius: 10px;
            font-size: 15px;
            outline: none;
            transition: 0.2s;
            font-family: inherit;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: #0057b3;
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 28px;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #dce3ed;
            transition: 0.2s;
            cursor: pointer;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f9d342;
        }
        .btn-primary {
            padding: 14px 36px;
            background: linear-gradient(135deg, #0057b3, #003d7a);
            color: #fff;
            border: none;
            border-radius: 40px;
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            transition: 0.3s;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 87, 179, 0.3);
        }
        .btn-secondary {
            padding: 12px 28px;
            background: #e8edf4;
            color: #1e2a3a;
            border: none;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .btn-secondary:hover {
            background: #d0dae8;
        }
        footer {
            background: #0a1a2f;
            color: #c8d4e4;
            padding: 48px 0 24px;
            margin-top: 40px;
        }
        footer a {
            color: #aac4e0;
        }
        footer a:hover {
            color: #f9d342;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand h3 {
            color: #fff;
            font-size: 22px;
            margin-bottom: 8px;
        }
        .footer-brand p {
            font-size: 14px;
            opacity: 0.8;
        }
        .footer-links h4 {
            color: #fff;
            margin-bottom: 12px;
            font-size: 16px;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links li a {
            font-size: 14px;
        }
        friend-link {
            display: block;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 20px;
            font-size: 14px;
        }
        friend-link a {
            margin: 0 12px 8px 0;
            display: inline-block;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 14px;
            opacity: 0.7;
        }
        @media (max-width: 900px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero h1 {
                font-size: 28px;
            }
        }
        @media (max-width: 720px) {
            .nav-toggle {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                padding-top: 16px;
                gap: 4px;
            }
            nav.show {
                display: flex;
            }
            nav a {
                padding: 12px 16px;
                border-radius: 10px;
                width: 100%;
            }
            .header-inner {
                gap: 12px;
            }
            .hero {
                padding: 30px 0 24px;
            }
            .hero h1 {
                font-size: 24px;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .feedback-section {
                padding: 20px;
            }
            .my-logo {
                font-size: 20px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            .hero h1 {
                font-size: 20px;
            }
            .main-article h2 {
                font-size: 24px;
            }
            .main-article h3 {
                font-size: 20px;
            }
            .search-form {
                flex-wrap: wrap;
            }
            .search-form button {
                width: 100%;
            }
        }