*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #1a3c34;
            --primary-light: #2a5c4a;
            --secondary: #e8c87a;
            --accent: #d4a843;
            --bg: #faf7f0;
            --card-bg: #ffffff;
            --text: #1e1e1e;
            --text-light: #555;
            --border: #ddd;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --radius: 12px;
            --max-width: 1200px;
            --font: 'Segoe UI', 'Roboto', system-ui, -apple-system, sans-serif;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            padding: 0 1rem;
        }
        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 1rem;
        }
        header {
            background: var(--primary);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            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;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: var(--secondary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .my-logo i {
            color: var(--accent);
            font-size: 2rem;
        }
        .my-logo:hover {
            color: #fff;
            text-decoration: none;
        }
        .my-logo span {
            font-weight: 300;
            color: #ccc;
            font-size: 0.9rem;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }
        nav a {
            color: #f0f0f0;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.4rem 0;
            position: relative;
        }
        nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: width 0.3s;
        }
        nav a:hover::after {
            width: 100%;
        }
        nav a:hover {
            color: var(--secondary);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #fff;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
            transition: transform 0.2s;
        }
        .hamburger:hover {
            transform: scale(1.1);
        }
        .nav-open {
            display: flex !important;
            flex-direction: column;
            width: 100%;
            padding-top: 1rem;
            gap: 0.6rem;
        }
        .breadcrumb {
            background: var(--card-bg);
            padding: 0.7rem 1.2rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin: 1.2rem 0;
            font-size: 0.9rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.4rem;
        }
        .breadcrumb a {
            color: var(--primary-light);
        }
        .breadcrumb span {
            color: var(--text-light);
        }
        .breadcrumb i {
            font-size: 0.7rem;
            color: #aaa;
            margin: 0 0.3rem;
        }
        main {
            padding: 1rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 2.5rem;
        }
        @media(max-width:992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-body h1 {
            font-size: 2.6rem;
            color: var(--primary);
            margin-bottom: 0.8rem;
            line-height: 1.2;
            border-left: 6px solid var(--accent);
            padding-left: 1.2rem;
        }
        .article-body h2 {
            font-size: 1.9rem;
            color: var(--primary);
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.4rem;
            border-bottom: 2px solid var(--secondary);
        }
        .article-body h3 {
            font-size: 1.4rem;
            color: var(--primary-light);
            margin: 1.8rem 0 0.8rem;
        }
        .article-body h4 {
            font-size: 1.15rem;
            color: var(--text);
            margin: 1.2rem 0 0.5rem;
            font-weight: 600;
        }
        .article-body p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        .article-body ul,
        .article-body ol {
            margin: 0.8rem 0 1.5rem 1.8rem;
        }
        .article-body li {
            margin-bottom: 0.5rem;
            font-size: 1.02rem;
        }
        .article-body .highlight-box {
            background: var(--card-bg);
            border-left: 5px solid var(--accent);
            padding: 1.5rem 2rem;
            border-radius: 0 var(--radius) var(--radius) 0;
            box-shadow: var(--shadow);
            margin: 1.8rem 0;
        }
        .article-body .highlight-box i {
            color: var(--accent);
            margin-right: 0.5rem;
        }
        .article-body .stat-badge {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 0.2rem 1rem;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-right: 0.4rem;
        }
        .featured-image-wrap {
            margin: 2rem 0;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            background: var(--card-bg);
            padding: 0.8rem;
        }
        .featured-image-wrap img {
            border-radius: calc(var(--radius) - 4px);
        }
        .featured-image-wrap figcaption {
            text-align: center;
            font-size: 0.9rem;
            color: var(--text-light);
            padding-top: 0.6rem;
            font-style: italic;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 1.8rem;
        }
        .sidebar-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 1.5rem;
            box-shadow: var(--shadow);
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            color: var(--primary);
            margin-bottom: 1rem;
            border-bottom: 2px solid var(--secondary);
            padding-bottom: 0.4rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card ul li {
            margin-bottom: 0.6rem;
            padding-left: 1.2rem;
            position: relative;
        }
        .sidebar-card ul li::before {
            content: '▸';
            position: absolute;
            left: 0;
            color: var(--accent);
            font-weight: bold;
        }
        .sidebar-card ul li a {
            font-weight: 500;
        }
        .search-form {
            display: flex;
            gap: 0.5rem;
            margin-top: 0.3rem;
        }
        .search-form input {
            flex: 1;
            padding: 0.7rem 1rem;
            border: 1px solid var(--border);
            border-radius: 30px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.3s;
        }
        .search-form input:focus {
            border-color: var(--accent);
        }
        .search-form button {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 30px;
            padding: 0.7rem 1.3rem;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background: var(--primary-light);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 2.5rem 0;
        }
        @media(max-width:700px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
        }
        .feedback-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 1.8rem;
            box-shadow: var(--shadow);
        }
        .feedback-card h3 {
            font-size: 1.3rem;
            color: var(--primary);
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .feedback-card h3 i {
            color: var(--accent);
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 0.9rem;
        }
        .feedback-card input,
        .feedback-card textarea {
            padding: 0.7rem 1rem;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 0.95rem;
            font-family: var(--font);
            outline: none;
            transition: border 0.3s;
            background: #fefefe;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus {
            border-color: var(--accent);
        }
        .feedback-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .feedback-card .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
        }
        .feedback-card .star-rating input {
            display: none;
        }
        .feedback-card .star-rating label {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s, transform 0.15s;
        }
        .feedback-card .star-rating label:hover,
        .feedback-card .star-rating label:hover~label,
        .feedback-card .star-rating input:checked~label {
            color: #f5b642;
            transform: scale(1.05);
        }
        .feedback-card .btn-submit {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 30px;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.3s, transform 0.15s;
            font-weight: 600;
            align-self: flex-start;
        }
        .feedback-card .btn-submit:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
        }
        footer {
            background: var(--primary);
            color: #eee;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
            border-radius: var(--radius) var(--radius) 0 0;
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1rem;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        @media(max-width:600px) {
            .footer-inner {
                grid-template-columns: 1fr;
            }
        }
        .footer-inner h4 {
            color: var(--secondary);
            margin-bottom: 0.8rem;
            font-size: 1.1rem;
        }
        friend-link {
            display: block;
            margin-top: 0.3rem;
        }
        friend-link a {
            color: #ccc;
            display: inline-block;
            margin-right: 1.2rem;
            margin-bottom: 0.4rem;
            font-size: 0.95rem;
        }
        friend-link a:hover {
            color: var(--secondary);
        }
        .copyright {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: 1.8rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #aaa;
        }
        .copyright strong {
            color: var(--secondary);
        }
        .last-updated {
            display: inline-block;
            background: var(--card-bg);
            padding: 0.3rem 1.2rem;
            border-radius: 30px;
            font-size: 0.85rem;
            color: var(--text-light);
            box-shadow: var(--shadow);
            margin-bottom: 1.2rem;
        }
        .last-updated i {
            color: var(--accent);
            margin-right: 0.4rem;
        }
        @media(max-width:768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            nav {
                display: none;
                width: 100%;
                order: 3;
            }
            .hamburger {
                display: block;
            }
            .article-body h1 {
                font-size: 1.9rem;
                padding-left: 0.8rem;
            }
            .article-body h2 {
                font-size: 1.5rem;
            }
            .article-body h3 {
                font-size: 1.2rem;
            }
            .article-body p {
                font-size: 1rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
                padding: 0.5rem 1rem;
            }
            .feedback-card .star-rating label {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo i {
                font-size: 1.5rem;
            }
        }
        @media(max-width:480px) {
            body {
                padding: 0 0.5rem;
            }
            .container {
                padding: 0 0.5rem;
            }
            .article-body h1 {
                font-size: 1.6rem;
            }
            .sidebar-card {
                padding: 1rem;
            }
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
            padding: 0.5rem 1.2rem;
            border-radius: 30px;
            font-weight: 600;
            transition: all 0.3s;
            cursor: pointer;
            font-size: 0.95rem;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }
        .tag {
            display: inline-block;
            background: var(--secondary);
            color: var(--primary);
            padding: 0.2rem 1rem;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            margin: 0.2rem 0.3rem 0.2rem 0;
        }
        .tag i {
            margin-right: 0.3rem;
        }
        .schema-hidden {
            display: none;
        }