* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: #f8fafc;
            color: #1e293b;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: #0f3b5e;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #d97706;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0f3b5e 0%, #1a5a7a 100%);
            color: #fff;
            padding: 16px 0;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fbbf24;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.03);
            color: #fde68a;
        }
        .my-logo i {
            margin-right: 8px;
            color: #fbbf24;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            font-size: 1.5rem;
            padding: 6px 14px;
            border-radius: 6px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.15);
        }
        .main-nav {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: #e2e8f0;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: background 0.2s, color 0.2s;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.2);
            color: #fbbf24;
        }
        .main-nav .active {
            background: rgba(255, 255, 255, 0.15);
            color: #fbbf24;
        }
        .breadcrumb {
            background: #e9edf2;
            padding: 10px 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #d1d9e6;
        }
        .breadcrumb ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #64748b;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #0f3b5e;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .current {
            color: #475569;
            font-weight: 500;
        }
        .hero {
            background: linear-gradient(135deg, #1a3a4a, #0f2d3b);
            color: #fff;
            padding: 48px 0 40px;
            text-align: center;
            border-bottom: 4px solid #fbbf24;
        }
        .hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -1px;
            line-height: 1.2;
            margin-bottom: 12px;
        }
        .hero h1 i {
            color: #fbbf24;
            margin-right: 10px;
        }
        .hero p {
            font-size: 1.2rem;
            color: #cbd5e1;
            max-width: 720px;
            margin: 0 auto 16px;
        }
        .hero .meta {
            font-size: 0.95rem;
            color: #94a3b8;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
        }
        .hero .meta i {
            margin-right: 6px;
            color: #fbbf24;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        @media (max-width: 920px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            min-width: 0;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            margin-bottom: 28px;
            border: 1px solid #e9edf2;
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 16px;
            border-bottom: 2px solid #fbbf24;
            padding-bottom: 8px;
            color: #0f3b5e;
        }
        .sidebar-card ul {
            list-style: none;
        }
        .sidebar-card li {
            margin-bottom: 10px;
        }
        .sidebar-card li a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 6px 0;
            border-bottom: 1px solid #f1f5f9;
            font-size: 0.95rem;
            color: #1e293b;
        }
        .sidebar-card li a:hover {
            color: #d97706;
            padding-left: 4px;
        }
        .sidebar-card li a i {
            color: #0f3b5e;
            width: 18px;
            text-align: center;
        }
        .article-body {
            background: #fff;
            border-radius: 16px;
            padding: 32px 36px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            border: 1px solid #e9edf2;
        }
        .article-body h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #0f3b5e;
            margin: 40px 0 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid #fbbf24;
        }
        .article-body h2:first-child {
            margin-top: 0;
        }
        .article-body h3 {
            font-size: 1.35rem;
            font-weight: 600;
            color: #1a5a7a;
            margin: 30px 0 12px;
        }
        .article-body h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #1e293b;
            margin: 20px 0 8px;
        }
        .article-body p {
            margin-bottom: 16px;
            font-size: 1.02rem;
        }
        .article-body ul,
        .article-body ol {
            margin: 12px 0 20px 24px;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body .feature-img {
            margin: 28px 0;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
        }
        .article-body .feature-img img {
            width: 100%;
        }
        .article-body .feature-img figcaption {
            background: #f1f5f9;
            padding: 10px 16px;
            font-size: 0.9rem;
            color: #475569;
            font-style: italic;
        }
        .highlight-box {
            background: #fef9e7;
            border-left: 4px solid #fbbf24;
            padding: 16px 20px;
            border-radius: 0 8px 8px 0;
            margin: 20px 0;
        }
        .highlight-box strong {
            color: #0f3b5e;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            font-size: 0.95rem;
        }
        .data-table th {
            background: #0f3b5e;
            color: #fff;
            padding: 10px 14px;
            text-align: left;
        }
        .data-table td {
            padding: 10px 14px;
            border-bottom: 1px solid #e2e8f0;
        }
        .data-table tr:nth-child(even) {
            background: #f8fafc;
        }
        .search-form {
            display: flex;
            gap: 0;
            margin: 20px 0 10px;
            border-radius: 40px;
            overflow: hidden;
            border: 2px solid #d1d9e6;
            background: #fff;
            transition: border-color 0.2s;
        }
        .search-form:focus-within {
            border-color: #fbbf24;
        }
        .search-form input {
            flex: 1;
            border: none;
            padding: 12px 20px;
            font-size: 1rem;
            outline: none;
            background: transparent;
        }
        .search-form button {
            background: #0f3b5e;
            color: #fff;
            border: none;
            padding: 0 24px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.2s;
        }
        .search-form button:hover {
            background: #1a5a7a;
        }
        .comment-section,
        .rating-section {
            margin-top: 36px;
            padding-top: 28px;
            border-top: 2px solid #e9edf2;
        }
        .comment-section h3,
        .rating-section h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: #0f3b5e;
            margin-bottom: 16px;
        }
        .comment-form textarea {
            width: 100%;
            padding: 14px 18px;
            border: 2px solid #d1d9e6;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            resize: vertical;
            min-height: 100px;
            transition: border-color 0.2s;
        }
        .comment-form textarea:focus {
            border-color: #fbbf24;
            outline: none;
        }
        .comment-form .form-actions {
            display: flex;
            gap: 12px;
            margin-top: 12px;
            flex-wrap: wrap;
        }
        .btn {
            background: #0f3b5e;
            color: #fff;
            border: none;
            padding: 10px 28px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn:hover {
            background: #1a5a7a;
            transform: translateY(-2px);
        }
        .btn-secondary {
            background: #e9edf2;
            color: #1e293b;
        }
        .btn-secondary:hover {
            background: #d1d9e6;
            color: #0f3b5e;
        }
        .rating-stars {
            display: flex;
            gap: 8px;
            font-size: 2rem;
            color: #d1d9e6;
            cursor: pointer;
            margin: 10px 0 16px;
        }
        .rating-stars i {
            transition: color 0.2s, transform 0.1s;
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #fbbf24;
            transform: scale(1.1);
        }
        .site-footer {
            background: #0f1a24;
            color: #cbd5e1;
            padding: 40px 0 20px;
            margin-top: 40px;
            border-top: 4px solid #fbbf24;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 30px;
        }
        @media (max-width: 680px) {
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .footer-inner h4 {
            color: #fbbf24;
            font-size: 1.1rem;
            margin-bottom: 12px;
        }
        .footer-inner a {
            color: #94a3b8;
            display: block;
            margin-bottom: 6px;
        }
        .footer-inner a:hover {
            color: #fbbf24;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.04);
            padding: 16px 20px;
            border-radius: 12px;
            margin: 16px 0;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            padding: 4px 10px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 16px;
            font-size: 0.9rem;
        }
        friend-link a:hover {
            background: rgba(251, 191, 36, 0.15);
        }
        .copyright {
            text-align: center;
            padding-top: 24px;
            margin-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.9rem;
            color: #64748b;
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                margin-top: 16px;
                flex-direction: column;
                gap: 4px;
                background: rgba(255, 255, 255, 0.06);
                border-radius: 12px;
                padding: 12px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 10px 16px;
                border-radius: 8px;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .article-body {
                padding: 20px 18px;
            }
            .article-body h2 {
                font-size: 1.4rem;
            }
            .article-body h3 {
                font-size: 1.15rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .data-table {
                font-size: 0.8rem;
            }
            .data-table th,
            .data-table td {
                padding: 6px 8px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .hero {
                padding: 30px 0;
            }
            .hero h1 {
                font-size: 1.4rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .btn {
                padding: 8px 18px;
                font-size: 0.9rem;
            }
        }
        .text-accent {
            color: #fbbf24;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mt-0 {
            margin-top: 0;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .gap-4 {
            gap: 4px;
        }
        html {
            scroll-behavior: smooth;
        }
        .last-updated {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #e9edf2;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            color: #475569;
        }