*,
        *::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, BlinkMacSystemFont, sans-serif;
            background: #f8fafc;
            color: #1e293b;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #0f3b5e;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #e67e22;
            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: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #0a1e2f;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
        }
        h1 {
            font-size: 2.4rem;
            border-left: 6px solid #e67e22;
            padding-left: 1rem;
        }
        h2 {
            font-size: 1.8rem;
            border-bottom: 2px solid #e2e8f0;
            padding-bottom: 0.5rem;
        }
        h3 {
            font-size: 1.4rem;
            color: #1e3a5f;
        }
        h4 {
            font-size: 1.15rem;
            color: #2c3e50;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0a1e2f, #1a3a5c);
            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: 1.8rem;
            font-weight: 800;
            color: #fbbf24;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
            transition: transform 0.2s ease;
        }
        .my-logo:hover {
            transform: scale(1.02);
            color: #f59e0b;
            text-decoration: none;
        }
        .my-logo i {
            margin-right: 0.4rem;
            color: #e67e22;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.3rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-menu {
            display: flex;
            gap: 1.2rem;
            align-items: center;
            flex-wrap: wrap;
        }
        .nav-menu a {
            color: #e2e8f0;
            font-weight: 500;
            padding: 0.4rem 0.8rem;
            border-radius: 6px;
            transition: all 0.2s ease;
            font-size: 0.95rem;
        }
        .nav-menu a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fbbf24;
            text-decoration: none;
        }
        .nav-menu a i {
            margin-right: 0.3rem;
        }
        .breadcrumb {
            background: #e9edf2;
            padding: 0.6rem 0;
            font-size: 0.88rem;
            color: #475569;
            border-bottom: 1px solid #d1d9e6;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #94a3b8;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #0f3b5e;
        }
        .breadcrumb a:hover {
            color: #e67e22;
        }
        .breadcrumb .current {
            color: #64748b;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(135deg, #0f2b42, #1e4a6b);
            color: #fff;
            padding: 3rem 0 2.5rem;
            margin-bottom: 2rem;
            border-radius: 0 0 40px 40px;
        }
        .hero h1 {
            font-size: 2.8rem;
            color: #fff;
            border-left-color: #fbbf24;
            margin-top: 0;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            color: #d1dce8;
        }
        .hero .meta-info {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-top: 1.2rem;
            font-size: 0.95rem;
            color: #b0c7db;
        }
        .hero .meta-info i {
            margin-right: 0.4rem;
            color: #fbbf24;
        }
        .search-section {
            background: #fff;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin-bottom: 2.5rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            border: 1px solid #e2e8f0;
        }
        .search-section form {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .search-section input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 0.85rem 1.2rem;
            border: 2px solid #d1d9e6;
            border-radius: 10px;
            font-size: 1rem;
            transition: border-color 0.3s;
            background: #f8fafc;
        }
        .search-section input[type="text"]:focus {
            border-color: #e67e22;
            outline: none;
            background: #fff;
        }
        .search-section button {
            padding: 0.85rem 1.8rem;
            background: #0a1e2f;
            color: #fff;
            border: none;
            border-radius: 10px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.3s, transform 0.15s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-section button:hover {
            background: #e67e22;
            transform: translateY(-2px);
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin-bottom: 3rem;
        }
        .main-content {
            background: #fff;
            border-radius: 20px;
            padding: 2rem 2.5rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            border: 1px solid #eef2f6;
        }
        .sidebar {
            background: #fff;
            border-radius: 20px;
            padding: 1.8rem 1.5rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            border: 1px solid #eef2f6;
            align-self: start;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 {
            font-size: 1.3rem;
            margin-top: 0;
            border-bottom: 2px solid #e2e8f0;
            padding-bottom: 0.6rem;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
        }
        .sidebar ul li {
            padding: 0.5rem 0;
            border-bottom: 1px dashed #e2e8f0;
        }
        .sidebar ul li a {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 500;
        }
        .sidebar ul li a i {
            color: #e67e22;
            width: 1.2rem;
        }
        .featured-image {
            margin: 1.8rem 0 2.2rem;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
        }
        .featured-image figcaption {
            padding: 0.8rem 1rem;
            background: #f1f5f9;
            font-size: 0.9rem;
            color: #475569;
            text-align: center;
            font-style: italic;
        }
        .highlight-box {
            background: #f0f7ff;
            border-left: 5px solid #0f3b5e;
            padding: 1.2rem 1.8rem;
            border-radius: 0 12px 12px 0;
            margin: 1.8rem 0;
        }
        .highlight-box.orange {
            background: #fef7ee;
            border-left-color: #e67e22;
        }
        .highlight-box.green {
            background: #ecfdf5;
            border-left-color: #10b981;
        }
        .highlight-box.purple {
            background: #f5f0ff;
            border-left-color: #7c3aed;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.8rem 0;
            font-size: 0.98rem;
        }
        .data-table th {
            background: #0a1e2f;
            color: #fff;
            padding: 0.8rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        .data-table td {
            padding: 0.7rem 1rem;
            border-bottom: 1px solid #e2e8f0;
        }
        .data-table tr:nth-child(even) {
            background: #f8fafc;
        }
        .data-table tr:hover {
            background: #edf2f7;
        }
        .interaction-section {
            background: #fff;
            border-radius: 20px;
            padding: 2rem 2.5rem;
            margin-top: 2.5rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            border: 1px solid #eef2f6;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        .interaction-grid form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .interaction-grid label {
            font-weight: 600;
            font-size: 0.95rem;
            color: #1e293b;
        }
        .interaction-grid input,
        .interaction-grid textarea,
        .interaction-grid select {
            padding: 0.75rem 1rem;
            border: 2px solid #d1d9e6;
            border-radius: 10px;
            font-size: 1rem;
            transition: border-color 0.3s;
            background: #f8fafc;
            font-family: inherit;
        }
        .interaction-grid input:focus,
        .interaction-grid textarea:focus,
        .interaction-grid select:focus {
            border-color: #e67e22;
            outline: none;
            background: #fff;
        }
        .interaction-grid textarea {
            resize: vertical;
            min-height: 100px;
        }
        .interaction-grid .btn-submit {
            padding: 0.8rem 1.8rem;
            background: #0a1e2f;
            color: #fff;
            border: none;
            border-radius: 10px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.3s, transform 0.15s;
            align-self: flex-start;
        }
        .interaction-grid .btn-submit:hover {
            background: #e67e22;
            transform: translateY(-2px);
        }
        .star-rating {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            color: #d1d9e6;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            transition: color 0.2s;
            font-size: 2rem;
            color: #d1d9e6;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f59e0b;
        }
        .site-footer {
            background: #0a1e2f;
            color: #cbd5e1;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        .footer-inner h4 {
            color: #fbbf24;
            margin-top: 0;
            font-size: 1.1rem;
        }
        .footer-inner a {
            color: #a0b9d4;
        }
        .footer-inner a:hover {
            color: #fbbf24;
        }
        .footer-bottom {
            border-top: 1px solid #1e3a5f;
            padding-top: 1.5rem;
            margin-top: 2rem;
            text-align: center;
            font-size: 0.9rem;
            color: #94a3b8;
        }
        .footer-bottom .copyright {
            font-weight: 500;
        }
        friend-link {
            display: block;
            margin: 1.2rem 0;
            padding: 1rem 1.2rem;
            background: #0f2b42;
            border-radius: 10px;
            font-size: 0.95rem;
        }
        friend-link a {
            display: inline-block;
            margin: 0.2rem 0.8rem 0.2rem 0;
            padding: 0.2rem 0.6rem;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 6px;
            transition: background 0.2s;
        }
        friend-link a:hover {
            background: rgba(255, 255, 255, 0.12);
            text-decoration: none;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .interaction-grid {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                padding: 1rem 0 0.5rem;
                gap: 0.5rem;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .header-inner {
                align-items: center;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .main-content {
                padding: 1.2rem 1.2rem;
            }
            .interaction-section {
                padding: 1.2rem 1.2rem;
            }
            .search-section {
                padding: 1.2rem 1.2rem;
            }
            .search-section form {
                flex-direction: column;
            }
            .search-section input[type="text"] {
                min-width: auto;
                width: 100%;
            }
            .search-section button {
                width: 100%;
                justify-content: center;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .data-table {
                font-size: 0.85rem;
            }
            .data-table th,
            .data-table td {
                padding: 0.5rem 0.6rem;
            }
            .star-rating label {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.8rem;
            }
            .hero {
                padding: 2rem 0 1.5rem;
            }
            .hero h1 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .breadcrumb {
                font-size: 0.78rem;
            }
            .main-content {
                padding: 0.8rem 0.8rem;
            }
            .interaction-section {
                padding: 0.8rem 0.8rem;
            }
            .search-section {
                padding: 0.8rem 0.8rem;
            }
            .highlight-box {
                padding: 0.8rem 1rem;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: #0a1e2f;
            color: #fff;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            z-index: 999;
        }
        .scroll-top:hover {
            background: #e67e22;
            transform: translateY(-4px);
        }
        .text-small {
            font-size: 0.9rem;
            color: #64748b;
        }
        .mt-2 {
            margin-top: 1.5rem;
        }
        .mb-1 {
            margin-bottom: 0.8rem;
        }
        .flex-between {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .badge {
            display: inline-block;
            background: #e2e8f0;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            color: #1e293b;
        }
        .badge.orange {
            background: #fef3c7;
            color: #b45309;
        }
        .badge.green {
            background: #d1fae5;
            color: #065f46;
        }
        .badge.blue {
            background: #dbeafe;
            color: #1e40af;
        }