* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #0a2e5c;
            --primary-light: #1a4a7a;
            --accent: #f5a623;
            --accent-hover: #d48f1a;
            --bg: #f8f9fa;
            --card-bg: #ffffff;
            --text: #1a1a2e;
            --text-light: #4a4a5a;
            --border: #e0e4e8;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --radius: 12px;
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-bg: #0a2e5c;
            --footer-bg: #0a1a2e;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: var(--header-bg);
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #f5a623, #f7c948);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: opacity 0.2s;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            color: #aac4e0;
            display: block;
            -webkit-text-fill-color: #aac4e0;
            letter-spacing: 0.3px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 1.5rem;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            border-color: var(--accent);
            color: var(--accent);
        }
        .main-nav {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: #e0e8f0;
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 0.88rem;
            font-weight: 500;
            transition: 0.2s;
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            text-decoration: none;
        }
        .main-nav a.active {
            background: var(--accent);
            color: #0a2e5c;
        }
        .breadcrumb-wrap {
            background: #eef2f7;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 0.82rem;
            color: var(--text-light);
            list-style: none;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 6px;
            color: #999;
        }
        .breadcrumb a {
            color: var(--primary-light);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(135deg, #0a2e5c 0%, #1a4a7a 100%);
            color: #fff;
            padding: 48px 0 40px;
            text-align: center;
        }
        .hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .hero h1 span {
            color: var(--accent);
        }
        .hero p {
            font-size: 1.1rem;
            max-width: 780px;
            margin: 0 auto 16px;
            opacity: 0.88;
        }
        .hero .meta {
            font-size: 0.85rem;
            opacity: 0.7;
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .hero .meta i {
            margin-right: 6px;
        }
        .page-wrap {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 90px;
            align-self: start;
        }
        .content-section {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 32px 36px;
            margin-bottom: 28px;
            box-shadow: var(--shadow);
        }
        .content-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid var(--accent);
        }
        .content-section h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--primary-light);
            margin: 24px 0 10px;
        }
        .content-section h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text);
            margin: 18px 0 6px;
        }
        .content-section p {
            margin-bottom: 14px;
            color: var(--text-light);
        }
        .content-section ul,
        .content-section ol {
            margin: 10px 0 18px 24px;
            color: var(--text-light);
        }
        .content-section li {
            margin-bottom: 6px;
        }
        .content-section .highlight {
            background: #fef7e0;
            padding: 16px 20px;
            border-left: 4px solid var(--accent);
            border-radius: 6px;
            margin: 18px 0;
        }
        .content-section .highlight strong {
            color: var(--primary);
        }
        .content-section .insight-box {
            background: #e8f0fe;
            padding: 16px 20px;
            border-radius: 8px;
            margin: 18px 0;
            font-size: 0.92rem;
        }
        .content-section .insight-box i {
            color: var(--primary-light);
            margin-right: 8px;
        }
        .feature-img {
            margin: 24px 0;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .feature-img figcaption {
            font-size: 0.8rem;
            color: #888;
            margin-top: 6px;
            text-align: center;
            font-style: italic;
        }
        .search-form {
            display: flex;
            gap: 10px;
            margin: 18px 0 10px;
            flex-wrap: wrap;
        }
        .search-form input {
            flex: 1;
            min-width: 180px;
            padding: 12px 18px;
            border: 2px solid var(--border);
            border-radius: 30px;
            font-size: 0.95rem;
            outline: none;
            transition: 0.2s;
        }
        .search-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.15);
        }
        .search-form button {
            padding: 12px 28px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 30px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .search-form button:hover {
            background: var(--primary-light);
            transform: scale(1.02);
        }
        .rating-wrap {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin: 14px 0;
        }
        .stars {
            display: flex;
            gap: 4px;
            font-size: 1.6rem;
            color: #ddd;
            cursor: pointer;
        }
        .stars .star {
            transition: color 0.15s;
        }
        .stars .star.active,
        .stars .star:hover {
            color: var(--accent);
        }
        .rating-form select,
        .rating-form button {
            padding: 8px 18px;
            border-radius: 30px;
            border: 2px solid var(--border);
            font-size: 0.9rem;
            background: #fff;
            cursor: pointer;
        }
        .rating-form button {
            background: var(--accent);
            border-color: var(--accent);
            color: #0a2e5c;
            font-weight: 600;
        }
        .rating-form button:hover {
            background: var(--accent-hover);
        }
        .comment-form textarea {
            width: 100%;
            padding: 14px 18px;
            border: 2px solid var(--border);
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: var(--font);
            resize: vertical;
            min-height: 100px;
            outline: none;
            transition: 0.2s;
        }
        .comment-form textarea:focus {
            border-color: var(--accent);
        }
        .comment-form .row {
            display: flex;
            gap: 12px;
            margin-top: 10px;
            flex-wrap: wrap;
        }
        .comment-form input {
            flex: 1;
            min-width: 160px;
            padding: 10px 16px;
            border: 2px solid var(--border);
            border-radius: 30px;
            font-size: 0.9rem;
            outline: none;
        }
        .comment-form input:focus {
            border-color: var(--accent);
        }
        .comment-form button {
            padding: 10px 28px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .comment-form button:hover {
            background: var(--primary-light);
        }
        .sidebar-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 22px 24px;
            margin-bottom: 24px;
            box-shadow: var(--shadow);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            border-bottom: 2px solid var(--accent);
            padding-bottom: 6px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card ul li {
            padding: 6px 0;
            border-bottom: 1px solid #f0f0f0;
        }
        .sidebar-card ul li:last-child {
            border-bottom: none;
        }
        .sidebar-card ul li a {
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card ul li a i {
            color: var(--accent);
            font-size: 0.75rem;
        }
        .site-footer {
            background: var(--footer-bg);
            color: #c8d4e0;
            padding: 40px 0 20px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 28px;
        }
        .footer-grid h4 {
            color: #fff;
            font-size: 1.05rem;
            margin-bottom: 12px;
        }
        .footer-grid p {
            font-size: 0.88rem;
            line-height: 1.6;
            color: #a0b0c0;
        }
        .footer-grid ul {
            list-style: none;
            padding: 0;
        }
        .footer-grid ul li {
            padding: 4px 0;
        }
        .footer-grid ul li a {
            color: #a0b0c0;
            font-size: 0.88rem;
        }
        .footer-grid ul li a:hover {
            color: var(--accent);
        }
        friend-link {
            display: block;
            padding: 16px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.88rem;
        }
        friend-link a {
            color: #a0b0c0;
            margin: 0 12px 0 0;
        }
        friend-link a:hover {
            color: var(--accent);
        }
        .copyright {
            text-align: center;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.8rem;
            color: #708090;
        }
        .copyright strong {
            color: #b0c0d0;
        }
        @media (max-width: 992px) {
            .page-wrap {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                padding-top: 16px;
                gap: 4px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                text-align: center;
                padding: 10px;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .content-section {
                padding: 20px 18px;
            }
            .content-section h2 {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .breadcrumb-wrap {
                font-size: 0.75rem;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.5rem;
            }
            .hero p {
                font-size: 0.95rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .search-form input,
            .search-form button {
                width: 100%;
            }
            .rating-wrap {
                flex-direction: column;
                align-items: stretch;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent);
            color: #0a2e5c;
            border: none;
            font-size: 1.3rem;
            cursor: pointer;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
            transition: 0.2s;
            z-index: 999;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .scroll-top:hover {
            transform: translateY(-4px);
            background: var(--accent-hover);
        }
        @media (max-width: 480px) {
            .scroll-top {
                bottom: 16px;
                right: 16px;
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
        }