* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #2c6e49;
            --primary-dark: #1e4d33;
            --primary-light: #4a9e6e;
            --accent: #f4a261;
            --accent-dark: #e07c3c;
            --bg: #f8f9f6;
            --bg-card: #ffffff;
            --text: #1a1a2e;
            --text-light: #5a5a7a;
            --border: #d4d8d0;
            --shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
            --radius: 16px;
            --radius-sm: 8px;
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--primary-light);
        }
        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(--bg-card);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            position: sticky;
            top: 0;
            z-index: 100;
            height: var(--header-height);
            display: flex;
            align-items: center;
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            transition: transform 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo:hover {
            transform: scale(1.02);
            color: var(--primary-dark);
        }
        .my-logo i {
            font-size: 1.6rem;
            color: var(--accent);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--text);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: var(--bg);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 24px;
        }
        .main-nav a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text);
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s, color 0.2s;
        }
        .main-nav a:hover {
            border-bottom-color: var(--primary);
            color: var(--primary);
        }
        .main-nav a.active {
            border-bottom-color: var(--primary);
            color: var(--primary);
        }
        .breadcrumb-wrap {
            background: var(--bg);
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px 12px;
            font-size: 0.85rem;
            color: var(--text-light);
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--text-light);
        }
        .breadcrumb i {
            font-size: 0.65rem;
            color: var(--text-light);
        }
        .search-section {
            background: var(--bg-card);
            padding: 32px 0;
            border-bottom: 1px solid var(--border);
        }
        .search-form {
            display: flex;
            gap: 12px;
            max-width: 640px;
            margin: 0 auto;
            flex-wrap: wrap;
        }
        .search-form input {
            flex: 1;
            min-width: 180px;
            padding: 14px 20px;
            border: 2px solid var(--border);
            border-radius: var(--radius);
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s;
            background: var(--bg);
        }
        .search-form input:focus {
            border-color: var(--primary);
        }
        .search-form button {
            padding: 14px 32px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
        }
        .main-content {
            padding: 48px 0 64px;
        }
        .article-header {
            margin-bottom: 40px;
        }
        .article-header h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text);
            margin-bottom: 16px;
        }
        .article-header .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 32px;
            color: var(--text-light);
            font-size: 0.95rem;
        }
        .article-header .meta i {
            margin-right: 6px;
            color: var(--primary);
        }
        .article-header .last-updated {
            font-weight: 600;
            color: var(--primary);
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 48px;
        }
        .article-body h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin-top: 48px;
            margin-bottom: 16px;
            color: var(--primary-dark);
            padding-bottom: 8px;
            border-bottom: 3px solid var(--accent);
        }
        .article-body h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin-top: 32px;
            margin-bottom: 12px;
            color: var(--text);
        }
        .article-body h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-top: 24px;
            margin-bottom: 8px;
            color: var(--text);
        }
        .article-body p {
            margin-bottom: 16px;
            color: var(--text);
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 20px;
            padding-left: 24px;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body strong {
            font-weight: 700;
            color: var(--text);
        }
        .article-body .highlight-box {
            background: var(--bg);
            border-left: 4px solid var(--accent);
            padding: 20px 24px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 24px 0;
        }
        .article-body .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .featured-image {
            margin: 32px 0;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .featured-image figcaption {
            padding: 12px 16px;
            background: var(--bg);
            font-size: 0.9rem;
            color: var(--text-light);
            text-align: center;
        }
        .link-list {
            list-style: none;
            padding: 0 !important;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .link-list li {
            margin: 0;
        }
        .link-list a {
            display: inline-block;
            padding: 8px 16px;
            background: var(--bg);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            font-size: 0.9rem;
            font-weight: 500;
            transition: all 0.2s;
        }
        .link-list a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .sidebar {
            position: sticky;
            top: calc(var(--header-height) + 24px);
            align-self: start;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 24px;
            margin-bottom: 24px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card li {
            margin-bottom: 10px;
        }
        .sidebar-card a {
            font-size: 0.95rem;
            display: block;
            padding: 6px 0;
            border-bottom: 1px solid var(--bg);
            transition: padding-left 0.2s;
        }
        .sidebar-card a:hover {
            padding-left: 8px;
        }
        .interaction-section {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 36px 40px;
            margin-top: 48px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .interaction-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 24px;
            color: var(--primary-dark);
            border-bottom: 2px solid var(--accent);
            padding-bottom: 12px;
        }
        .rating-area {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px 32px;
            margin-bottom: 32px;
            padding: 20px;
            background: var(--bg);
            border-radius: var(--radius-sm);
        }
        .rating-area .stars {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            color: #d4c850;
            cursor: pointer;
        }
        .rating-area .stars i {
            transition: transform 0.2s, color 0.2s;
        }
        .rating-area .stars i:hover {
            transform: scale(1.2);
            color: #f0d060;
        }
        .rating-area .stars i.active {
            color: #f0c040;
        }
        .rating-area .score-display {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text);
        }
        .rating-area .score-display span {
            color: var(--primary);
        }
        .rating-area .rate-btn {
            padding: 10px 24px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius);
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
        }
        .rating-area .rate-btn:hover {
            background: var(--accent-dark);
        }
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-top: 16px;
        }
        .comment-form input,
        .comment-form textarea {
            padding: 14px 18px;
            border: 2px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-family: var(--font);
            outline: none;
            transition: border-color 0.3s;
            background: var(--bg);
        }
        .comment-form input:focus,
        .comment-form textarea:focus {
            border-color: var(--primary);
        }
        .comment-form textarea {
            min-height: 120px;
            resize: vertical;
        }
        .comment-form button {
            align-self: flex-start;
            padding: 14px 36px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
        }
        .comment-form button:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
        }
        .comment-list {
            margin-top: 32px;
            border-top: 1px solid var(--border);
            padding-top: 24px;
        }
        .comment-item {
            padding: 16px 0;
            border-bottom: 1px solid var(--bg);
        }
        .comment-item:last-child {
            border-bottom: none;
        }
        .comment-item .author {
            font-weight: 700;
            color: var(--text);
        }
        .comment-item .date {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-left: 12px;
        }
        .comment-item .text {
            margin-top: 6px;
            color: var(--text);
        }
        .friend-links-wrap {
            background: var(--bg-card);
            border-top: 1px solid var(--border);
            padding: 40px 0;
        }
        friend-link {
            display: block;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        friend-link h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--primary-dark);
        }
        friend-link .links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            list-style: none;
            padding: 0;
        }
        friend-link .links li {
            margin: 0;
        }
        friend-link .links a {
            font-size: 0.95rem;
            padding: 6px 12px;
            background: var(--bg);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            transition: all 0.2s;
        }
        friend-link .links a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .site-footer {
            background: var(--primary-dark);
            color: #e8f0e8;
            padding: 32px 0;
            text-align: center;
        }
        .site-footer .container {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        .site-footer p {
            font-size: 0.9rem;
            opacity: 0.85;
        }
        .site-footer .copyright {
            font-size: 0.85rem;
            opacity: 0.7;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .sidebar .sidebar-card {
                margin-bottom: 0;
            }
            .article-header h1 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .nav-toggle {
                display: block;
            }
            .main-nav {
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-card);
                flex-direction: column;
                padding: 20px 24px;
                gap: 12px;
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
                border-bottom: 1px solid var(--border);
                display: none;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                font-size: 1.05rem;
                padding: 10px 0;
                width: 100%;
                border-bottom: 1px solid var(--bg);
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .article-header h1 {
                font-size: 1.6rem;
            }
            .article-body h2 {
                font-size: 1.4rem;
            }
            .article-body h3 {
                font-size: 1.2rem;
            }
            .interaction-section {
                padding: 24px 20px;
            }
            .rating-area {
                flex-direction: column;
                align-items: flex-start;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
                justify-content: center;
            }
        }
        @media (max-width: 480px) {
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo i {
                font-size: 1.2rem;
            }
            .article-header h1 {
                font-size: 1.35rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
                gap: 4px 8px;
            }
        }
        .emoji {
            font-style: normal;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(12px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .article-body>* {
            animation: fadeIn 0.4s ease-out both;
        }
        .article-body>*:nth-child(1) {
            animation-delay: 0.05s;
        }
        .article-body>*:nth-child(2) {
            animation-delay: 0.1s;
        }
        .article-body>*:nth-child(3) {
            animation-delay: 0.15s;
        }
        .article-body>*:nth-child(4) {
            animation-delay: 0.2s;
        }
        .article-body>*:nth-child(5) {
            animation-delay: 0.25s;
        }
        .article-body>*:nth-child(6) {
            animation-delay: 0.3s;
        }
        .article-body>*:nth-child(7) {
            animation-delay: 0.35s;
        }
        .article-body>*:nth-child(8) {
            animation-delay: 0.4s;
        }
        .article-body>*:nth-child(9) {
            animation-delay: 0.45s;
        }
        .article-body>*:nth-child(10) {
            animation-delay: 0.5s;
        }
        .article-body>*:nth-child(11) {
            animation-delay: 0.55s;
        }
        .article-body>*:nth-child(12) {
            animation-delay: 0.6s;
        }
        .article-body>*:nth-child(13) {
            animation-delay: 0.65s;
        }
        .article-body>*:nth-child(14) {
            animation-delay: 0.7s;
        }
        .article-body>*:nth-child(15) {
            animation-delay: 0.75s;
        }
        .article-body>*:nth-child(16) {
            animation-delay: 0.8s;
        }
        .article-body>*:nth-child(17) {
            animation-delay: 0.85s;
        }
        .article-body>*:nth-child(18) {
            animation-delay: 0.9s;
        }
        .article-body>*:nth-child(19) {
            animation-delay: 0.95s;
        }
        .article-body>*:nth-child(20) {
            animation-delay: 1s;
        }