:root {
            --primary-autumn: #8B4513;
            --secondary-autumn: #D2691E;
            --accent-warm: #FF7F50;
            --accent-leaf: #E97451;
            --grass-green: #556B2F;
            --grass-fall: #A0522D;
            --background-light: #FFF8DC;
            --background-card: #FAF0E6;
            --text-dark: #333333;
            --text-medium: #5a5a5a;
            --border-color: #DEB887;
            --shadow: rgba(139, 69, 19, 0.15);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-dark);
            background-color: var(--background-light);
            background-image: url('data:image/svg+xml;utf8,<svg width="100" height="100" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"><path d="M20,50 Q50,10 80,50 T140,50" stroke="%23DEB88722" fill="none" stroke-width="2"/></svg>');
            padding-top: 80px;
        }
        a {
            color: var(--primary-autumn);
            text-decoration: none;
            transition: color 0.3s ease, text-decoration 0.3s ease;
        }
        a:hover {
            color: var(--accent-leaf);
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: #fff;
            box-shadow: 0 4px 12px var(--shadow);
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary-autumn);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--accent-warm);
        }
        .my-logo:hover {
            color: var(--accent-leaf);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .main-nav a {
            font-weight: 600;
            padding: 8px 0;
            position: relative;
        }
        .main-nav a:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent-leaf);
            transition: width 0.3s ease;
        }
        .main-nav a:hover:after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: var(--primary-autumn);
            cursor: pointer;
        }
        .breadcrumb {
            padding: 15px 20px;
            background-color: var(--background-card);
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--text-medium);
        }
        .breadcrumb span {
            color: var(--primary-autumn);
            font-weight: 600;
        }
        .article-header {
            padding: 40px 20px;
            text-align: center;
            background: linear-gradient(135deg, var(--background-card) 0%, #fff 100%);
            border-radius: 10px;
            margin: 30px 0;
            border-left: 5px solid var(--accent-leaf);
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: var(--primary-autumn);
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 20px;
            color: var(--text-medium);
            font-size: 0.95rem;
            flex-wrap: wrap;
        }
        .article-meta i {
            margin-right: 5px;
            color: var(--accent-warm);
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 40px 0;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        .main-content {
            background: #fff;
            padding: 40px;
            border-radius: 10px;
            box-shadow: 0 6px 20px var(--shadow);
        }
        .sidebar {
            background: var(--background-card);
            padding: 25px;
            border-radius: 10px;
            align-self: start;
            position: sticky;
            top: 110px;
        }
        .sidebar h3 {
            color: var(--primary-autumn);
            border-bottom: 2px solid var(--border-color);
            padding-bottom: 10px;
            margin-bottom: 20px;
        }
        .interaction-box {
            background: #fff;
            padding: 20px;
            border-radius: 8px;
            margin-bottom: 25px;
            border: 1px solid var(--border-color);
        }
        .interaction-box h4 {
            margin-bottom: 15px;
            color: var(--secondary-autumn);
        }
        .interaction-box input, .interaction-box textarea, .interaction-box select {
            width: 100%;
            padding: 10px;
            margin-bottom: 15px;
            border: 1px solid var(--border-color);
            border-radius: 5px;
            font-family: inherit;
        }
        .interaction-box button {
            background-color: var(--primary-autumn);
            color: white;
            border: none;
            padding: 12px 20px;
            border-radius: 5px;
            cursor: pointer;
            font-weight: 600;
            transition: background-color 0.3s;
            width: 100%;
        }
        .interaction-box button:hover {
            background-color: var(--accent-leaf);
        }
        .star-rating {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin: 15px 0;
            font-size: 1.8rem;
            color: #FFD700;
        }
        .star-rating i {
            cursor: pointer;
            transition: transform 0.2s;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        h2 {
            font-size: 2.2rem;
            color: var(--primary-autumn);
            margin: 45px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px dashed var(--border-color);
        }
        h3 {
            font-size: 1.8rem;
            color: var(--secondary-autumn);
            margin: 35px 0 15px;
        }
        h4 {
            font-size: 1.4rem;
            color: var(--accent-leaf);
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 1.5em;
            font-size: 1.1rem;
            color: var(--text-dark);
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: var(--text-medium);
            background-color: var(--background-card);
            padding: 20px;
            border-radius: 8px;
            border-left: 4px solid var(--accent-warm);
            margin: 25px 0;
        }
        .highlight {
            background-color: #fffaf0;
            border-left: 5px solid var(--accent-warm);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .highlight strong {
            color: var(--primary-autumn);
        }
        .code-box {
            background-color: #2d2d2d;
            color: #f8f8f2;
            padding: 20px;
            border-radius: 8px;
            font-family: 'Courier New', monospace;
            margin: 20px 0;
            overflow-x: auto;
        }
        .code-tag {
            color: #66d9ef;
        }
        .code-value {
            color: #a6e22e;
        }
        .img-container {
            margin: 30px auto;
            text-align: center;
        }
        .article-img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.1);
            border: 5px solid white;
        }
        .img-caption {
            font-style: italic;
            color: var(--text-medium);
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .link-list {
            background: var(--background-card);
            padding: 25px;
            border-radius: 10px;
            margin: 30px 0;
        }
        .link-list ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
        }
        .link-list li {
            padding: 10px 15px;
            background: white;
            border-radius: 5px;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .link-list li:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px var(--shadow);
        }
        .link-list a {
            display: block;
            font-weight: 600;
        }
        .link-list i {
            margin-right: 10px;
            color: var(--accent-warm);
        }
        .site-footer {
            background-color: #2c1810;
            color: #e0c9b4;
            padding: 50px 20px 30px;
            margin-top: 60px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h4 {
            color: #ffa500;
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .footer-links a {
            color: #e0c9b4;
            display: block;
            margin-bottom: 10px;
        }
        .footer-links a:hover {
            color: #ffa500;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            padding: 15px;
            background: rgba(255,255,255,0.05);
            border-radius: 5px;
            margin-bottom: 10px;
            border-left: 3px solid var(--accent-warm);
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #4a3325;
            font-size: 0.9rem;
            color: #b39b8a;
        }
        @media (max-width: 768px) {
            body {
                padding-top: 70px;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                background: white;
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 10px 15px var(--shadow);
                transition: left 0.3s ease;
                z-index: 999;
            }
            .main-nav.active {
                left: 0;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                width: 100%;
                border-bottom: 1px solid #eee;
            }
            .main-nav a {
                display: block;
                padding: 15px;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            .content-wrapper {
                gap: 25px;
            }
            .main-content, .sidebar {
                padding: 25px;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
        }