*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #f4f7fc;
            color: #1a2a3a;
            line-height: 1.75;
            padding: 0;
            margin: 0;
        }
        a {
            color: #1e6f9f;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #0d3b5c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin: 1rem 0;
        }
        li {
            margin-bottom: 0.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #0a1f2e;
            margin-top: 2rem;
            margin-bottom: 1rem;
        }
        h1 {
            font-size: 2.4rem;
            border-bottom: 4px solid #1e6f9f;
            padding-bottom: 0.6rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 5px solid #1e6f9f;
            padding-left: 1rem;
            margin-top: 2.8rem;
        }
        h3 {
            font-size: 1.4rem;
            color: #1a4a6a;
        }
        h4 {
            font-size: 1.15rem;
            color: #2a5a7a;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0a1f2e 0%, #1a4a6a 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            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: 1.9rem;
            font-weight: 800;
            color: #f0d78c;
            letter-spacing: 1px;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
            transition: transform 0.2s ease;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #fae6a8;
        }
        .my-logo i {
            font-size: 1.6rem;
            color: #f0d78c;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            font-size: 1.5rem;
            padding: 0.4rem 0.8rem;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-menu {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-menu a {
            color: #e8f0f8;
            padding: 0.5rem 1rem;
            border-radius: 6px;
            font-weight: 500;
            font-size: 0.95rem;
            transition: background 0.2s, color 0.2s;
        }
        .nav-menu a:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #f0d78c;
            text-decoration: none;
        }
        .nav-menu a.active {
            background: rgba(255, 255, 255, 0.12);
            color: #f0d78c;
        }
        .breadcrumb {
            background: #e8f0f8;
            padding: 0.6rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #d0dde8;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0;
            gap: 0.3rem;
        }
        .breadcrumb li+li::before {
            content: "›";
            padding: 0 0.5rem;
            color: #6a8a9a;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #1e6f9f;
        }
        .breadcrumb .current {
            color: #2a4a5a;
            font-weight: 600;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2.5rem 0;
        }
        @media (max-width: 900px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
        }
        .content-area {
            min-width: 0;
        }
        .sidebar {
            min-width: 0;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.8rem 1.5rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            margin-bottom: 2rem;
            border: 1px solid #e2ecf5;
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            margin-top: 0;
            border-bottom: 2px solid #d0dde8;
            padding-bottom: 0.6rem;
            margin-bottom: 1rem;
        }
        .sidebar-link-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-link-list li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f0f4f8;
        }
        .sidebar-link-list a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 500;
        }
        .sidebar-link-list a i {
            color: #1e6f9f;
            font-size: 0.85rem;
            width: 1.2rem;
            text-align: center;
        }
        .sidebar-image-card img {
            width: 100%;
            border-radius: 12px;
            margin-bottom: 0.8rem;
        }
        .sidebar-image-card .caption {
            font-size: 0.85rem;
            color: #4a6a7a;
            text-align: center;
        }
        .feature-box {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem 1.8rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
            margin-bottom: 2rem;
            border-left: 6px solid #1e6f9f;
        }
        .feature-box.highlight {
            border-left-color: #f0d78c;
            background: #fdfbf5;
        }
        .two-col-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 1.5rem 0;
        }
        @media (max-width: 640px) {
            .two-col-grid {
                grid-template-columns: 1fr;
            }
        }
        .stat-badge {
            display: inline-block;
            background: #1e6f9f;
            color: #fff;
            padding: 0.2rem 1rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
        }
        .search-form {
            display: flex;
            gap: 0.5rem;
            margin: 1.5rem 0;
            flex-wrap: wrap;
        }
        .search-form input {
            flex: 1;
            min-width: 180px;
            padding: 0.8rem 1.2rem;
            border: 2px solid #d0dde8;
            border-radius: 30px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.2s;
            background: #fff;
        }
        .search-form input:focus {
            border-color: #1e6f9f;
        }
        .search-form button {
            padding: 0.8rem 1.8rem;
            background: #1e6f9f;
            color: #fff;
            border: none;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #0d4a6a;
            transform: scale(1.02);
        }
        .comment-box,
        .rating-box {
            background: #fff;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
            margin: 2rem 0;
            border: 1px solid #e2ecf5;
        }
        .comment-box h3,
        .rating-box h3 {
            margin-top: 0;
        }
        .comment-form textarea {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid #d0dde8;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            resize: vertical;
            min-height: 100px;
            outline: none;
            transition: border-color 0.2s;
        }
        .comment-form textarea:focus {
            border-color: #1e6f9f;
        }
        .comment-form input[type="text"] {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #d0dde8;
            border-radius: 12px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.2s;
        }
        .comment-form input[type="text"]:focus {
            border-color: #1e6f9f;
        }
        .comment-form .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
            margin: 0.8rem 0;
        }
        @media (max-width: 500px) {
            .comment-form .form-row {
                grid-template-columns: 1fr;
            }
        }
        .comment-form .btn-submit {
            padding: 0.7rem 2rem;
            background: #1e6f9f;
            color: #fff;
            border: none;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s;
            margin-top: 0.5rem;
        }
        .comment-form .btn-submit:hover {
            background: #0d4a6a;
        }
        .star-rating {
            display: flex;
            gap: 0.3rem;
            font-size: 2rem;
            cursor: pointer;
            direction: rtl;
            justify-content: flex-end;
            margin: 0.8rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #d0dde8;
            transition: color 0.15s;
            cursor: pointer;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5b342;
        }
        .rating-form .btn-submit {
            padding: 0.6rem 2rem;
            background: #1e6f9f;
            color: #fff;
            border: none;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s;
        }
        .rating-form .btn-submit:hover {
            background: #0d4a6a;
        }
        .site-footer {
            background: #0a1f2e;
            color: #c8d8e8;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
            border-top: 4px solid #1e6f9f;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        @media (max-width: 700px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
        }
        .footer-brand .my-logo {
            font-size: 1.6rem;
            margin-bottom: 0.5rem;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: #a0b8c8;
        }
        .footer-links h4 {
            color: #f0d78c;
            margin-top: 0;
            font-size: 1.1rem;
            border-bottom: 2px solid #1a4a6a;
            padding-bottom: 0.5rem;
        }
        .footer-links a {
            display: block;
            color: #a0b8c8;
            padding: 0.25rem 0;
            font-size: 0.9rem;
            transition: color 0.2s;
        }
        .footer-links a:hover {
            color: #f0d78c;
            text-decoration: none;
        }
        .footer-bottom {
            border-top: 1px solid #1a4a6a;
            padding-top: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            font-size: 0.85rem;
            color: #8aa0b0;
        }
        .footer-bottom .copyright {
            font-weight: 400;
        }
        .footer-bottom .copyright strong {
            color: #f0d78c;
        }
        friend-link {
            display: block;
            padding: 0.8rem 1.2rem;
            background: #0d2a3a;
            border-radius: 10px;
            margin: 0.5rem 0;
            font-size: 0.9rem;
        }
        friend-link a {
            color: #b0d0e0;
            margin: 0 0.4rem;
        }
        friend-link a:hover {
            color: #f0d78c;
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                background: rgba(10, 30, 46, 0.98);
                padding: 1rem 0;
                border-radius: 0 0 16px 16px;
                margin-top: 0.8rem;
                gap: 0.1rem;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 0.7rem 1.2rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            .header-inner {
                position: relative;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .container {
                padding: 0 1rem;
            }
            .sidebar {
                order: 2;
            }
            .content-area {
                order: 1;
            }
        }
        .text-small {
            font-size: 0.9rem;
            color: #4a6a7a;
        }
        .text-muted {
            color: #6a8a9a;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .last-updated {
            background: #e8f0f8;
            display: inline-block;
            padding: 0.3rem 1rem;
            border-radius: 20px;
            font-size: 0.85rem;
            color: #1a4a6a;
            font-weight: 500;
        }
        .last-updated i {
            margin-right: 0.4rem;
        }
        blockquote {
            background: #f0f6fc;
            border-left: 5px solid #1e6f9f;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #1a3a4a;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        th,
        td {
            padding: 0.7rem 1rem;
            border-bottom: 1px solid #e2ecf5;
            text-align: left;
        }
        th {
            background: #e8f0f8;
            font-weight: 700;
            color: #0a1f2e;
        }
        tr:last-child td {
            border-bottom: none;
        }
        .featured-image-wrap {
            margin: 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
        }
        .featured-image-wrap img {
            width: 100%;
            object-fit: cover;
        }
        .featured-image-wrap .img-caption {
            padding: 0.8rem 1.2rem;
            background: #f0f6fc;
            font-size: 0.9rem;
            color: #2a4a5a;
            text-align: center;
            font-style: italic;
        }
        .anchor-offset {
            scroll-margin-top: 100px;
        }
        .badge-new {
            background: #f0d78c;
            color: #0a1f2e;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 0.15rem 0.6rem;
            border-radius: 20px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }