*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f4f7fb;
            color: #1e293b;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #0f3b5e;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #f5a623;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0b1e2e 0%, #1a3a4a 100%);
            padding: 16px 0;
            border-bottom: 4px solid #f5a623;
            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: 1.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }
        .my-logo i {
            color: #f5a623;
            font-size: 2rem;
        }
        .my-logo span {
            color: #f5a623;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            color: #aac4d4;
            display: block;
            line-height: 1.2;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 10px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #dce8f0;
            padding: 8px 16px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.9rem;
            transition: all 0.25s;
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: rgba(245, 166, 35, 0.2);
            color: #f5a623;
        }
        .main-nav a i {
            margin-right: 6px;
        }
        .breadcrumb {
            background: #e9edf2;
            padding: 12px 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #dce0e5;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            padding: 0 20px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 6px;
            color: #4a5b6b;
        }
        .breadcrumb li+li::before {
            content: "›";
            color: #9aabb8;
            font-size: 1.2rem;
            margin-right: 6px;
        }
        .breadcrumb a {
            color: #0f3b5e;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .current {
            color: #1e293b;
            font-weight: 600;
        }
        .main-content {
            padding: 40px 0 60px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .article-body {
            background: #fff;
            border-radius: 20px;
            padding: 40px 36px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
        }
        .article-body h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #0b1e2e;
            line-height: 1.2;
            margin-bottom: 8px;
            letter-spacing: -0.5px;
        }
        .article-body h1 i {
            color: #f5a623;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 24px;
            color: #5a6b7b;
            font-size: 0.9rem;
            margin-bottom: 24px;
            padding-bottom: 20px;
            border-bottom: 2px solid #f0f3f7;
        }
        .article-meta i {
            margin-right: 6px;
            color: #f5a623;
        }
        .article-body h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #0b1e2e;
            margin-top: 48px;
            margin-bottom: 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid #f5a623;
            display: inline-block;
        }
        .article-body h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: #1a3a4a;
            margin-top: 32px;
            margin-bottom: 12px;
        }
        .article-body h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #2a4a5a;
            margin-top: 24px;
            margin-bottom: 8px;
        }
        .article-body p {
            margin-bottom: 18px;
            font-size: 1.05rem;
            color: #2a3a4a;
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 20px;
            padding-left: 24px;
        }
        .article-body li {
            margin-bottom: 8px;
            font-size: 1.02rem;
        }
        .highlight-box {
            background: linear-gradient(135deg, #fef9ed, #fdf2db);
            border-left: 5px solid #f5a623;
            padding: 20px 24px;
            border-radius: 12px;
            margin: 24px 0;
        }
        .highlight-box strong {
            color: #0b1e2e;
        }
        .feature-image {
            margin: 28px 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
        }
        .feature-image img {
            width: 100%;
            display: block;
        }
        .feature-image figcaption {
            background: #f4f7fb;
            padding: 10px 16px;
            font-size: 0.85rem;
            color: #4a5b6b;
            text-align: center;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px 20px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
        }
        .sidebar-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #0b1e2e;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i {
            color: #f5a623;
        }
        .sidebar-links {
            list-style: none;
            padding: 0;
        }
        .sidebar-links li {
            padding: 8px 0;
            border-bottom: 1px solid #f0f3f7;
        }
        .sidebar-links li:last-child {
            border-bottom: none;
        }
        .sidebar-links a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 500;
            color: #0f3b5e;
        }
        .sidebar-links a:hover {
            color: #f5a623;
            transform: translateX(4px);
        }
        .sidebar-links a i {
            color: #f5a623;
            font-size: 0.8rem;
        }
        .search-form {
            display: flex;
            gap: 8px;
            margin-top: 4px;
        }
        .search-form input {
            flex: 1;
            padding: 12px 16px;
            border: 2px solid #e0e6ed;
            border-radius: 30px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.3s;
            background: #f8fafc;
        }
        .search-form input:focus {
            border-color: #f5a623;
        }
        .search-form button {
            background: #f5a623;
            border: none;
            padding: 0 20px;
            border-radius: 30px;
            color: #fff;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.25s;
        }
        .search-form button:hover {
            background: #d48e1a;
        }
        .comment-section,
        .rating-section {
            margin-top: 48px;
            padding-top: 32px;
            border-top: 2px solid #e9edf2;
        }
        .comment-section h3,
        .rating-section h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #0b1e2e;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .comment-form textarea {
            width: 100%;
            padding: 16px;
            border: 2px solid #e0e6ed;
            border-radius: 14px;
            font-size: 1rem;
            font-family: inherit;
            resize: vertical;
            min-height: 120px;
            transition: border 0.3s;
            background: #f8fafc;
        }
        .comment-form textarea:focus {
            border-color: #f5a623;
            outline: none;
        }
        .comment-form .form-row {
            display: flex;
            gap: 14px;
            margin-top: 14px;
            flex-wrap: wrap;
        }
        .comment-form input {
            flex: 1;
            padding: 12px 16px;
            border: 2px solid #e0e6ed;
            border-radius: 30px;
            font-size: 0.95rem;
            background: #f8fafc;
            transition: border 0.3s;
            min-width: 180px;
        }
        .comment-form input:focus {
            border-color: #f5a623;
            outline: none;
        }
        .comment-form button {
            background: #0b1e2e;
            border: none;
            padding: 12px 32px;
            border-radius: 30px;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.25s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .comment-form button:hover {
            background: #1a3a4a;
        }
        .rating-stars {
            display: flex;
            gap: 8px;
            font-size: 2rem;
            color: #d0d8e0;
            cursor: pointer;
            margin-bottom: 16px;
            direction: rtl;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            transition: color 0.2s;
            cursor: pointer;
            color: #d0d8e0;
        }
        .rating-stars label:hover,
        .rating-stars label:hover~label,
        .rating-stars input:checked~label {
            color: #f5a623;
        }
        .rating-form button {
            background: #f5a623;
            border: none;
            padding: 10px 28px;
            border-radius: 30px;
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.25s;
        }
        .rating-form button:hover {
            background: #d48e1a;
        }
        .site-footer {
            background: #0b1e2e;
            color: #c8d8e4;
            padding: 48px 0 24px;
            margin-top: 40px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .footer-brand .my-logo {
            font-size: 1.5rem;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            max-width: 360px;
            color: #9aaabb;
        }
        .footer-links h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .footer-links a {
            display: block;
            padding: 5px 0;
            color: #9aaabb;
            font-size: 0.9rem;
            transition: color 0.2s;
        }
        .footer-links a:hover {
            color: #f5a623;
        }
        friend-link {
            display: block;
            margin-top: 8px;
        }
        friend-link a {
            display: inline-block;
            margin-right: 16px;
            color: #9aaabb;
            font-size: 0.9rem;
        }
        friend-link a:hover {
            color: #f5a623;
        }
        .footer-bottom {
            text-align: center;
            padding-top: 32px;
            margin-top: 32px;
            border-top: 1px solid #1a3a4a;
            font-size: 0.85rem;
            color: #7a8b9b;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .article-body {
                padding: 28px 20px;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding-top: 16px;
                gap: 4px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 16px;
                border-radius: 10px;
                background: rgba(255, 255, 255, 0.05);
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .article-body h1 {
                font-size: 1.8rem;
            }
            .article-body h2 {
                font-size: 1.5rem;
            }
            .article-body h3 {
                font-size: 1.2rem;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .breadcrumb ol {
                font-size: 0.75rem;
                padding: 0 12px;
            }
            .article-body {
                padding: 20px 16px;
            }
            .rating-stars {
                font-size: 1.6rem;
            }
            .comment-form .form-row {
                flex-direction: column;
            }
            .comment-form input {
                min-width: unset;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .my-logo i {
                font-size: 1.4rem;
            }
            .article-body h1 {
                font-size: 1.5rem;
            }
            .article-body p {
                font-size: 0.95rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                padding: 12px;
            }
        }
        .btn-gold {
            background: #f5a623;
            color: #0b1e2e;
            font-weight: 700;
            padding: 12px 28px;
            border-radius: 30px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all 0.25s;
            border: none;
            cursor: pointer;
        }
        .btn-gold:hover {
            background: #e09512;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 166, 35, 0.3);
        }
        .tag {
            display: inline-block;
            background: #eef2f6;
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
            color: #0f3b5e;
            margin-right: 6px;
            margin-bottom: 6px;
        }
        .tag i {
            margin-right: 4px;
            color: #f5a623;
        }
        .last-updated {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #f4f7fb;
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #4a5b6b;
        }