*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #1a3c5e;
            --primary-light: #2a5a8a;
            --secondary: #f5a623;
            --accent: #e74c3c;
            --bg: #f9f7f4;
            --card-bg: #ffffff;
            --text: #2d2d2d;
            --text-light: #5a5a5a;
            --border: #e0ddd8;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            --radius: 16px;
            --radius-sm: 8px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --font: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: var(--primary);
            color: #fff;
            padding: 0 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;
            padding: 12px 20px;
            max-width: var(--max-width);
            margin: 0 auto;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
            color: var(--secondary);
        }
        .my-logo i {
            font-size: 2rem;
            color: var(--secondary);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: var(--transition);
        }
        .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: rgba(255, 255, 255, 0.88);
            padding: 8px 16px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.92rem;
            transition: var(--transition);
            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(--secondary);
            color: var(--primary);
        }
        .breadcrumb {
            background: rgba(255, 255, 255, 0.06);
            padding: 8px 20px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: var(--max-width);
            margin: 0 auto;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
        }
        .breadcrumb a:hover {
            color: var(--secondary);
        }
        .breadcrumb span {
            color: var(--secondary);
        }
        .hero {
            background: linear-gradient(135deg, var(--primary) 0%, #0f2a42 100%);
            color: #fff;
            padding: 60px 20px 50px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .hero::after {
            content: "9 8 7 6 5 4 3 2 1";
            position: absolute;
            bottom: -20px;
            left: 0;
            right: 0;
            font-size: 12vw;
            font-weight: 900;
            color: rgba(255, 255, 255, 0.03);
            letter-spacing: 2vw;
            pointer-events: none;
            white-space: nowrap;
            user-select: none;
        }
        .hero h1 {
            font-size: 2.8rem;
            font-weight: 900;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            position: relative;
        }
        .hero h1 i {
            color: var(--secondary);
            margin-right: 10px;
        }
        .hero p {
            font-size: 1.2rem;
            opacity: 0.9;
            max-width: 720px;
            margin: 0 auto 24px;
            line-height: 1.8;
        }
        .hero .meta-badge {
            display: inline-flex;
            align-items: center;
            gap: 16px;
            background: rgba(255, 255, 255, 0.08);
            padding: 10px 24px;
            border-radius: 40px;
            font-size: 0.92rem;
            backdrop-filter: blur(4px);
            flex-wrap: wrap;
            justify-content: center;
        }
        .hero .meta-badge i {
            color: var(--secondary);
        }
        .main-content {
            padding: 40px 0 60px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
        }
        .article-body {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 40px 36px;
            box-shadow: var(--shadow);
        }
        .article-body h2 {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--primary);
            margin-top: 48px;
            margin-bottom: 16px;
            padding-bottom: 8px;
            border-bottom: 4px solid var(--secondary);
            display: inline-block;
        }
        .article-body h2:first-of-type {
            margin-top: 0;
        }
        .article-body h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--primary-light);
            margin-top: 32px;
            margin-bottom: 12px;
        }
        .article-body h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text);
            margin-top: 24px;
            margin-bottom: 8px;
        }
        .article-body p {
            margin-bottom: 18px;
            font-size: 1.02rem;
            color: var(--text);
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 20px;
            padding-left: 28px;
        }
        .article-body li {
            margin-bottom: 8px;
            font-size: 1.02rem;
        }
        .article-body .highlight-box {
            background: #f0f7ff;
            border-left: 5px solid var(--secondary);
            padding: 20px 24px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 24px 0;
        }
        .article-body .highlight-box strong {
            color: var(--primary);
        }
        .article-body .insight-card {
            background: #faf5eb;
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            margin: 20px 0;
            border: 1px solid var(--border);
        }
        .featured-image-wrap {
            margin: 32px 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }
        .featured-image-wrap img {
            width: 100%;
            height: auto;
            display: block;
        }
        .featured-image-wrap figcaption {
            padding: 12px 16px;
            background: #f4f1ec;
            font-size: 0.9rem;
            color: var(--text-light);
            font-style: italic;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 24px 20px;
            box-shadow: var(--shadow);
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i {
            color: var(--secondary);
        }
        .sidebar-links {
            list-style: none;
            padding: 0;
        }
        .sidebar-links li {
            margin-bottom: 10px;
            padding: 0;
        }
        .sidebar-links a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 12px;
            border-radius: 8px;
            background: #f9f7f4;
            transition: var(--transition);
            font-size: 0.95rem;
        }
        .sidebar-links a:hover {
            background: var(--primary);
            color: #fff;
            text-decoration: none;
            transform: translateX(4px);
        }
        .sidebar-links a i {
            font-size: 0.85rem;
            color: var(--secondary);
            width: 18px;
        }
        .search-form {
            display: flex;
            gap: 8px;
        }
        .search-form input {
            flex: 1;
            padding: 10px 16px;
            border: 2px solid var(--border);
            border-radius: 40px;
            font-size: 0.95rem;
            outline: none;
            transition: var(--transition);
            background: var(--bg);
        }
        .search-form input:focus {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(26, 60, 94, 0.1);
        }
        .search-form button {
            padding: 10px 20px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 40px;
            font-size: 0.95rem;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 600;
        }
        .search-form button:hover {
            background: var(--primary-light);
            transform: scale(1.02);
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            cursor: pointer;
            margin: 12px 0;
            justify-content: center;
        }
        .rating-stars i {
            color: #ddd;
            transition: var(--transition);
        }
        .rating-stars i.active,
        .rating-stars i:hover {
            color: var(--secondary);
        }
        .rating-stars i:hover~i {
            color: #ddd;
        }
        .rating-value {
            text-align: center;
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary);
        }
        .comment-box {
            margin-top: 16px;
        }
        .comment-box textarea {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-family: var(--font);
            resize: vertical;
            min-height: 80px;
            transition: var(--transition);
            background: var(--bg);
        }
        .comment-box textarea:focus {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(26, 60, 94, 0.08);
            outline: none;
        }
        .comment-box .comment-submit {
            margin-top: 10px;
            padding: 10px 28px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .comment-box .comment-submit:hover {
            background: var(--primary-light);
            transform: scale(1.02);
        }
        .comment-list {
            margin-top: 16px;
            max-height: 300px;
            overflow-y: auto;
        }
        .comment-item {
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            font-size: 0.92rem;
        }
        .comment-item:last-child {
            border-bottom: none;
        }
        .comment-item .author {
            font-weight: 600;
            color: var(--primary);
        }
        .comment-item .time {
            font-size: 0.8rem;
            color: var(--text-light);
            margin-left: 12px;
        }
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.9);
            padding: 40px 20px 20px;
            margin-top: 40px;
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
        }
        .footer-inner h4 {
            color: var(--secondary);
            font-size: 1.1rem;
            margin-bottom: 16px;
        }
        .footer-inner p,
        .footer-inner li {
            font-size: 0.92rem;
            line-height: 1.8;
        }
        .footer-inner ul {
            list-style: none;
            padding: 0;
        }
        .footer-inner ul li {
            margin-bottom: 6px;
        }
        .footer-inner ul a {
            color: rgba(255, 255, 255, 0.8);
        }
        .footer-inner ul a:hover {
            color: var(--secondary);
        }
        friend-link {
            display: block;
            margin-top: 12px;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            line-height: 1.8;
        }
        friend-link a {
            color: rgba(255, 255, 255, 0.85);
            margin: 0 6px;
        }
        friend-link a:hover {
            color: var(--secondary);
        }
        .copyright {
            text-align: center;
            padding-top: 24px;
            margin-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            max-width: var(--max-width);
            margin-left: auto;
            margin-right: auto;
        }
        .copyright strong {
            color: rgba(255, 255, 255, 0.85);
        }
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                padding: 10px 16px;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding: 12px 0 8px;
                gap: 4px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 10px 16px;
                border-radius: 8px;
                text-align: center;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .article-body {
                padding: 24px 18px;
            }
            .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: 28px;
            }
            .breadcrumb {
                font-size: 0.78rem;
                padding: 6px 16px;
                overflow-x: auto;
                white-space: nowrap;
            }
            .rating-stars {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.5rem;
            }
            .hero .meta-badge {
                font-size: 0.8rem;
                padding: 8px 16px;
                gap: 10px;
            }
            .article-body {
                padding: 18px 14px;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
            }
        }
        .comment-list::-webkit-scrollbar {
            width: 4px;
        }
        .comment-list::-webkit-scrollbar-track {
            background: var(--bg);
        }
        .comment-list::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 8px;
        }
        @media print {
            .site-header,
            .site-footer,
            .sidebar {
                display: none;
            }
            .content-grid {
                display: block;
            }
            .article-body {
                box-shadow: none;
                padding: 0;
            }
        }