/* RESET & 基础变量 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

        body {
            background-color: #f5f7f2;
            /* 柔和底衬，突出主内容区 */
            line-height: 1.5;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        img {
            max-width: 100%;
        }

        /* 主容器，保证中间内容宽度1200px，自适应 */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            /* 移动端左右安全距离 */
            width: 100%;
        }

        /* ----- 顶部导航栏 (背景色 #243e1f) ----- */
        .header {
            background-color: #243e1f;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
          
            /* 固定高度，方便垂直居中 */
        }

        /* LOGO区域 (左侧) */
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            font-weight: 600;
            font-size: 1.5rem;
            letter-spacing: 1px;
            text-decoration: none;
        }
.logo img{
    max-height: 105px;
}
@media screen and (max-width: 600px) {
    .logo img {
        height: auto;
    }
}
        .logo span {
            background-color: #e8b13e;
            color: #243e1f;
            font-size: 1.2rem;
            padding: 4px 10px;
            border-radius: 30px;
            font-weight: 700;
            margin-left: 4px;
        }

        /* 桌面导航菜单 (小号文字) */
        .nav-menu {
            display: flex;
            list-style: none;
            gap: 2rem;
        }

        .nav-menu li {
            position: relative;
        }

        .nav-menu li a {
            text-decoration: none;
            color: #f0f5e9;
            /* font-size: 0.9rem; */
            /* 小一点文字 */
            font-weight: 500;
            letter-spacing: 0.3px;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s, color 0.2s;
            white-space: nowrap;
            display: block;
        }

        .nav-menu li a:hover {
            border-bottom-color: #e8b13e;
            color: #e8b13e;
        }

        .nav-menu li a.active {
            border-bottom-color: #e8b13e;
            color: #e8b13e;
        }

        /* 二级菜单样式 */
        .nav-menu .submenu {
            position: absolute;
            top: 100%;
            left: 0;
            background-color: #243e1f;
            min-width: 150px;
            padding: 10px 0;
            border-radius: 0 0 8px 8px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s, visibility 0.3s, transform 0.3s;
            transform: translateY(10px);
            z-index: 1000;
        }

        .nav-menu .has-submenu:hover .submenu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .nav-menu .submenu li {
            margin: 0;
            list-style: none;
        }

        .nav-menu .submenu li a {
            padding: 8px 16px;
            border-bottom: none;
            font-size: 0.85rem;
        }

        .nav-menu .submenu li a:hover {
            background-color: #2f5128;
            border-bottom: none;
        }

        /* 移动端右上角菜单按钮 (隐藏于桌面) */
        .menu-toggle {
            display: none;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 8px;
            width: 44px;
            height: 44px;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            gap: 6px;
            transition: background 0.2s;
        }

        .menu-toggle:hover {
            background-color: #2f5128;
        }

        .menu-toggle .bar {
            width: 26px;
            height: 2px;
            background-color: white;
            border-radius: 4px;
            transition: 0.3s;
        }

        /* 侧边栏遮罩 - 点击关闭 */
        .sidebar-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 200;
            visibility: hidden;
            opacity: 0;
            transition: opacity 0.3s ease, visibility 0.3s;
        }

        .sidebar-overlay.active {
            visibility: visible;
            opacity: 1;
        }

        /* 侧边导航栏 (从右侧滑出) */
        .sidebar {
            position: fixed;
            top: 0;
            right: -300px;
            /* 隐藏状态 */
            width: 280px;
            height: 100%;
            background-color: #fff;
            box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
            z-index: 210;
            transition: right 0.3s ease-in-out;
            display: flex;
            flex-direction: column;
            padding: 30px 24px;
        }

        .sidebar.open {
            right: 0;
        }

        .sidebar-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 40px;
            border-bottom: 1px solid #e2e8d5;
            padding-bottom: 16px;
        }

        .sidebar-header .logo-side {
            font-weight: 700;
            color: #243e1f;
            font-size: 1.4rem;
        }

        .close-sidebar {
            background: none;
            border: none;
            font-size: 2rem;
            line-height: 1;
            cursor: pointer;
            color: #5a7153;
            padding: 0 8px;
        }

        .close-sidebar:hover {
            color: #243e1f;
        }

        .sidebar-nav {
            list-style: none;
        }

        .sidebar-nav li {
            margin-bottom: 10px;
        }

        .sidebar-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
        }

        .sidebar-item a {
            text-decoration: none;
            color: #1e2e1a;
            font-size: 1rem;
            /* 稍大一点易点按 */
            font-weight: 500;
            display: block;
            padding: 8px 12px;
            border-radius: 40px;
            background-color: #f1f6ec;
            transition: background 0.2s;
            flex: 1;
        }

        .toggle-icon {
            color: #243e1f;
            font-size: 0.8rem;
            margin-right: 12px;
            transition: transform 0.3s;
        }

        .sidebar-nav li a {
            text-decoration: none;
            color: #1e2e1a;
            font-size: 1rem;
            /* 稍大一点易点按 */
            font-weight: 500;
            display: block;
            padding: 8px 12px;
            border-radius: 40px;
            background-color: #f1f6ec;
            transition: background 0.2s;
        }

        .sidebar-nav li a:hover {
            background-color: #dde8d4;
            color: #0f2c0a;
        }

        /* 侧边栏二级菜单样式 */
        .sidebar-nav .submenu {
            margin-left: 20px;
            margin-top: 5px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .sidebar-nav .submenu li {
            margin-bottom: 5px;
        }

        .sidebar-nav .submenu li a {
            font-size: 0.9rem;
            background-color: #e6ede1;
        }

        .sidebar-nav .submenu li a:hover {
            background-color: #d4e0c9;
        }

        .sidebar-nav .has-submenu.active .submenu {
            max-height: 200px;
        }

        .sidebar-nav .has-submenu.active .toggle-icon {
            transform: rotate(180deg);
        }

        /* ----- 主要内容区域 (新闻详情风格 上下排版) ----- */
        .main-content {
            flex: 1;
            padding: 40px 0 60px;
        }

        /* 文章卡片样式 (模拟详情页) */
        .article-header {
            margin-bottom: 32px;
        }

        .article-header h1 {
            font-size: 2.3rem;
            font-weight: 700;
            color: #1e3319;
            line-height: 1.2;
            margin-bottom: 16px;
        }

        .meta {
            display: flex;
            gap: 20px;
            color: #4f6948;
            font-size: 0.9rem;
            border-bottom: 1px dashed #cbd8c2;
            padding-bottom: 16px;
        }

        /* 图文区：上下排版，文字在上，图片在下 (也可以是文字+混合，这里采用段落在上，大图在下) */
        .article-content {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }

        .text-section p {
            font-size: 1.1rem;
            color: #2c3e28;
            margin-bottom: 22px;
            text-align: justify;
        }


        .image-section {
            width: 100%;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 20px 30px -10px rgba(0, 40, 0, 0.2);
            margin: 16px 0 8px;
        }

        .image-section img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform 0.4s ease;
        }

        .image-section img:hover {
            transform: scale(1.02);
        }

        .caption {
            background-color: #ecf3e8;
            padding: 12px 18px;
            font-size: 0.9rem;
            color: #2b4d21;
            border-radius: 0 0 20px 20px;
            border-left: 4px solid #243e1f;
        }

        /* 次要补充信息 (模拟新闻底部引用) */
        .quote-block {
            background-color: #e6ede1;
            padding: 24px 28px;
            border-radius: 30px;
            margin-top: 16px;
            color: #1b3b13;
            font-style: italic;
            border-left: 6px solid #e8b13e;
        }
.quote-block p {
    margin-bottom: 8px;
    line-height: 1.8rem;
}
        /* ----- 底部区域 footer ----- */
        .footer {
            background-color: #1b2f17;
            /* 比主色稍深 */
            color: #d0ddc9;
            padding: 28px 0;
            font-size: 0.9rem;
            border-top: 3px solid #3b6232;
        }

        .footer .container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }

        .footer-links {
            display: flex;
            gap: 28px;
        }

        .footer-links a {
            color: #d0ddc9;
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.2s;
        }

        .footer-links a:hover {
            color: #f5e2a9;
        }

        .copyright {
            color: #98ab90;
            font-size: 0.85rem;
        }

        /* ===== 响应式: 屏幕宽度小于 900px 时激活移动端菜单 ===== */
        @media screen and (max-width: 900px) {
            .nav-menu {
                display: none;
                /* 隐藏桌面导航 */
            }

            .menu-toggle {
                display: flex;
                /* 显示汉堡按钮 */
            }
        }

        /* 小屏幕微调 */
        @media screen and (max-width: 600px) {
         

            .logo {
                font-size: 1.3rem;
            }

            .logo span {
                font-size: 1rem;
                padding: 2px 8px;
            }

            .article-header h1 {
                font-size: 1.8rem;
            }

            .meta {
                flex-direction: column;
                gap: 6px;
            }

            .footer .container {
                flex-direction: column;
                text-align: center;
            }
        }

        /* 表单提交模块样式 */
        .form-section {
            max-width: 800px;
            margin: 0 auto;
            padding: 40px 0;
        }

        .form-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: #1e3319;
            margin-bottom: 32px;
            text-align: center;
        }

        .feedback-form {
            background-color: #fff;
            border-radius: 24px;
            padding: 32px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
        }

        .form-group {
            margin-bottom: 24px;
        }

        .form-group label {
            display: block;
            font-size: 1rem;
            font-weight: 500;
            color: #2c3e28;
            margin-bottom: 8px;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #cbd8c2;
            border-radius: 12px;
            font-size: 1rem;
            transition: border-color 0.3s, box-shadow 0.3s;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: #243e1f;
            box-shadow: 0 0 0 3px rgba(36, 62, 31, 0.1);
        }

        .form-group textarea {
            resize: vertical;
            min-height: 120px;
        }

        .submit-btn {
            display: block;
            width: 100%;
            padding: 14px;
            background-color: #243e1f;
            color: #fff;
            border: none;
            border-radius: 12px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s, transform 0.2s;
        }

        .submit-btn:hover {
            background-color: #1b2f17;
            transform: translateY(-2px);
        }

        .submit-btn:active {
            transform: translateY(0);
        }

        /* 响应式表单样式 */
        @media screen and (max-width: 768px) {
            .form-section {
                padding: 20px 0;
            }

            .form-title {
                font-size: 1.8rem;
                margin-bottom: 24px;
            }

            .feedback-form {
                padding: 24px;
            }

            .form-group {
                margin-bottom: 20px;
            }

            .form-group input,
            .form-group textarea {
                padding: 10px 14px;
            }

            .submit-btn {
                padding: 12px;
                font-size: 1rem;
            }
        }

        @media screen and (max-width: 480px) {
            .feedback-form {
                padding: 16px;
                border-radius: 16px;
            }

            .form-title {
                font-size: 1.5rem;
            }
        }

        /* 超大屏幕下内容依然居中 */
        @media screen and (min-width: 1400px) {
            .container {
                padding: 0;
            }
        }