* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: #f5f7fa;
            color: #1e2a3e;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: #0066cc;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #004080;
            text-decoration: underline;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #0f1a2e 0%, #1a2d4a 100%);
            color: #fff;
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            color: #ffc107;
            letter-spacing: 1px;
            text-shadow: 0 0 10px rgba(255, 193, 7, 0.3);
        }
        .my-logo i {
            margin-right: 8px;
            color: #ff6f00;
        }
        .my-logo:hover {
            color: #ffd54f;
            text-decoration: none;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #ffc107;
            color: #ffc107;
            font-size: 1.6rem;
            padding: 6px 14px;
            border-radius: 6px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            background: #ffc107;
            color: #0f1a2e;
        }
        nav {
            display: flex;
            gap: 10px 18px;
            flex-wrap: wrap;
            align-items: center;
        }
        nav a {
            color: #e0e7f0;
            font-weight: 500;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
        }
        nav a:hover {
            color: #ffc107;
            border-bottom-color: #ffc107;
            text-decoration: none;
        }
        .breadcrumb {
            background: #e9edf2;
            padding: 10px 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #d0d7e0;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #6b7a8f;
        }
        .breadcrumb a {
            color: #2c3e50;
        }
        .breadcrumb .active {
            color: #7f8c8d;
        }
        main {
            padding: 30px 0 50px;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #0f1a2e;
            margin-bottom: 0.5rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #1a2d4a;
            margin: 2.2rem 0 1rem 0;
            border-left: 5px solid #ffc107;
            padding-left: 16px;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: #243b55;
            margin: 1.6rem 0 0.7rem 0;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #2c4a6e;
            margin: 1.2rem 0 0.5rem 0;
        }
        p {
            margin-bottom: 1.2rem;
            color: #2c3e50;
        }
        .last-updated {
            display: inline-block;
            background: #eef2f7;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            color: #4a5b6f;
            margin-bottom: 1.2rem;
        }
        .last-updated i {
            margin-right: 6px;
            color: #ff6f00;
        }
        .featured-img {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 16px;
            margin: 20px 0 30px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
        }
        .img-caption {
            font-size: 0.9rem;
            color: #5a6a7e;
            text-align: center;
            margin-top: -20px;
            margin-bottom: 30px;
            font-style: italic;
        }
        .highlight {
            background: #fff8e1;
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 600;
        }
        .btn {
            display: inline-block;
            background: #ffc107;
            color: #0f1a2e;
            padding: 10px 28px;
            border-radius: 30px;
            font-weight: 600;
            transition: 0.3s;
            border: none;
            cursor: pointer;
            font-size: 1rem;
        }
        .btn:hover {
            background: #ffb300;
            box-shadow: 0 4px 15px rgba(255, 193, 7, 0.4);
            transform: translateY(-2px);
            text-decoration: none;
            color: #0f1a2e;
        }
        .card {
            background: #fff;
            border-radius: 16px;
            padding: 24px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            margin-bottom: 24px;
            transition: 0.3s;
            border: 1px solid #eef2f7;
        }
        .card:hover {
            box-shadow: 0 8px 35px rgba(0, 0, 0, 0.1);
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 20px;
        }
        .link-list {
            list-style: none;
            padding: 0;
        }
        .link-list li {
            padding: 8px 0;
            border-bottom: 1px dashed #dce3ec;
        }
        .link-list li a i {
            margin-right: 8px;
            color: #ff6f00;
        }
        .search-box {
            display: flex;
            gap: 8px;
            max-width: 500px;
            margin: 20px 0;
        }
        .search-box input {
            flex: 1;
            padding: 12px 18px;
            border: 2px solid #d0d7e0;
            border-radius: 30px;
            font-size: 1rem;
            outline: none;
            transition: 0.2s;
        }
        .search-box input:focus {
            border-color: #ffc107;
            box-shadow: 0 0 0 3px rgba(255, 193, 7, 0.2);
        }
        .search-box button {
            background: #ffc107;
            border: none;
            border-radius: 30px;
            padding: 0 24px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            color: #0f1a2e;
        }
        .search-box button:hover {
            background: #ffb300;
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #d0d7e0;
            border-radius: 10px;
            font-size: 1rem;
            margin-bottom: 12px;
            outline: none;
            transition: 0.2s;
            font-family: inherit;
        }
        .comment-form textarea:focus,
        .comment-form input:focus {
            border-color: #ffc107;
        }
        .comment-form textarea {
            min-height: 120px;
            resize: vertical;
        }
        .rating-stars {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            margin: 10px 0 16px;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            font-size: 1.8rem;
            color: #d0d7e0;
            cursor: pointer;
            transition: 0.2s;
        }
        .rating-stars label:hover,
        .rating-stars label:hover~label,
        .rating-stars input:checked~label {
            color: #ffc107;
        }
        .friend-link {
            display: block;
            background: #eef2f7;
            padding: 20px 24px;
            border-radius: 14px;
            margin: 30px 0 10px;
            border: 1px solid #dce3ec;
        }
        .friend-link a {
            display: inline-block;
            margin: 4px 16px 4px 0;
            padding: 4px 12px;
            background: #fff;
            border-radius: 20px;
            font-weight: 500;
            border: 1px solid #d0d7e0;
            transition: 0.2s;
        }
        .friend-link a:hover {
            background: #ffc107;
            border-color: #ffc107;
            color: #0f1a2e;
            text-decoration: none;
        }
        footer {
            background: #0f1a2e;
            color: #b0c0d0;
            padding: 30px 0 20px;
            text-align: center;
            border-top: 4px solid #ffc107;
        }
        footer a {
            color: #ffc107;
        }
        footer a:hover {
            color: #ffd54f;
        }
        .copyright {
            font-size: 0.85rem;
            margin-top: 12px;
            opacity: 0.8;
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                padding-top: 16px;
                gap: 6px;
            }
            nav.active {
                display: flex;
            }
            nav a {
                padding: 10px 0;
                border-bottom: 1px solid #2a4060;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .grid-2,
            .grid-3 {
                grid-template-columns: 1fr;
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.4rem;
            }
        }
        @media (min-width: 769px) {
            nav {
                display: flex !important;
            }
        }
        .schema-hidden {
            display: none;
        }
        html {
            scroll-behavior: smooth;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .inline-icon {
            margin-right: 6px;
        }
        .badge {
            background: #ffc107;
            color: #0f1a2e;
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }