        /* 全局样式 */
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            margin: 0;
            padding: 0;
            color: #333;
            line-height: 1.6;
            background: linear-gradient(135deg, #e0f2f7 0%, #ffffff 100%); /* 渐变背景 */
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden; /* 防止水平滚动 */
        }

        /* 头部导航 */
        header {
            background-color: #004d40; /* 绿欧科技的主色调 */
            color: white;
            padding: 15px 0;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            top: 0;
            z-index: 1000;
        }

        nav {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: center; /* 导航居中 */
            align-items: center;
            padding: 0 20px;
        }

        nav a {
            color: white;
            text-decoration: none;
            padding: 10px 20px;
            margin: 0 10px;
            border-radius: 5px;
            transition: background-color 0.3s ease, transform 0.2s ease;
            font-weight: 500;
        }

        nav a:hover, nav a.active {
            background-color: #00796b; /* 悬停和激活状态 */
            transform: translateY(-2px);
        }

        /* 主内容区 */
        main {
            flex: 1; /* 让 main 区域填充剩余空间 */
            max-width: 1200px;
            margin: 20px auto;
            padding: 0 20px;
        }

        /* 页面头部横幅 */
        .page-header {
            text-align: center;
            padding: 60px 20px;
            background: linear-gradient(to right, #e8f5e9, #c8e6c9); /* 柔和的绿色渐变 */
            border-radius: 10px;
            margin-bottom: 40px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
            position: relative;
            overflow: hidden; /* 隐藏伪元素溢出 */
        }

        /* 头部背景图案 */
        .page-header::before {
            content: '';
            position: absolute;
            top: -50px;
            left: -50px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            transform: rotate(45deg);
            animation: movePattern1 15s infinite linear;
        }

        .page-header::after {
            content: '';
            position: absolute;
            bottom: -50px;
            right: -50px;
            width: 150px;
            height: 150px;
            background: rgba(255, 255, 255, 0.15);
            border-radius: 50%;
            transform: rotate(-30deg);
            animation: movePattern2 18s infinite linear reverse;
        }

        @keyframes movePattern1 {
            0% { transform: translate(0, 0) rotate(45deg); }
            50% { transform: translate(20px, 20px) rotate(50deg); }
            100% { transform: translate(0, 0) rotate(45deg); }
        }

        @keyframes movePattern2 {
            0% { transform: translate(0, 0) rotate(-30deg); }
            50% { transform: translate(-20px, -20px) rotate(-35deg); }
            100% { transform: translate(0, 0) rotate(-30deg); }
        }
        
/* --- 页脚 --- */
.site-footer {
    background-color: #2c3e50; /* 统一使用深蓝灰色背景 */
    color: #bdc3c7; /* 柔和的灰色文字 */
    padding: 60px 0 30px 0;
    font-size: 0.9rem;
    line-height: 1.8;
    flex-shrink: 0; /* 防止在粘性页脚布局中被压缩 */
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 核心布局容器：负责链接和右侧信息区的水平排列
  这是实现你想要效果的关键部分
*/
.footer-main {
    display: flex;
    justify-content: space-between; /* <-- 主要修改点：让左右两块内容自动分开并贴向两侧 */
    align-items: flex-start;
    gap: 40px; /* 确保左右两块内容在空间不足时不会紧贴 */
    padding-bottom: 40px;
    flex-wrap: nowrap; /* 在大屏上我们不希望左右两块换行 */
}

/* 左侧链接区域容器 */
.footer-links {
    display: flex;
    gap: 50px; /* 各个链接列之间的间距 */
    flex-wrap: wrap; /* 在空间不足时，允许链接列自身换行 */
}

.footer-column h4 {
    color: #ffffff;
    font-size: 1.1rem;
    margin-top: 0;
    margin-bottom: 20px;
    font-weight: 600;
}

.footer-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-column li {
    margin-bottom: 12px;
}

.footer-column a {
    color: #bdc3c7;
    text-decoration: none; /* <-- 添加这一行来移除下划线 */
    transition: color 0.3s ease, padding-left 0.3s ease;
}

.footer-column a:hover {
    color: #ffffff;
    padding-left: 5px;
}

/* 右侧Logo和二维码区域 */
.footer-aside {
    display: flex;
    align-items: flex-start;
    gap: 20px; /* Logo和二维码之间的间距 */
    flex-shrink: 0; /* 防止此区域被压缩变形 */
}

.footer-logo img {
    max-width: 200px; /* 根据你的logo实际情况调整 */
    height: auto;
}

.footer-qr {
    text-align: center;
}

.footer-qr img {
    width: 200px; /* 调整了尺寸以获得更好的视觉平衡 */
    height: 200px;
    background: #fff;
    padding: 5px;
    border-radius: 4px;
    display: block;
}

.footer-qr p {
    margin-top: 10px;
    font-size: 0.85rem;
    color: #bdc3c7;
}

/* 分割线 */
.footer-divider {
    border: none;
    height: 1px;
    background-color: rgba(255, 255, 255, 0.1);
    margin: 0;
}

/* 底部版权信息行 */
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    font-size: 0.85rem;
    color: #95a5a6;
    flex-wrap: wrap;
    gap: 15px;
}

.footer-bottom a {
    color: #95a5a6;
    text-decoration: none; /* <-- 添加这一行来移除下划线 */
    margin-left: 20px;
    transition: color 0.3s ease;
}

.footer-bottom a:hover {
    color: #ffffff;
}


/* --- 响应式调整 (已优化整合) --- */

/* 平板设备 (宽度小于 992px) */
@media (max-width: 992px) {
    .footer-main {
        flex-direction: column; /* 开始垂直堆叠 */
        align-items: center;   /* 居中对齐 */
        text-align: center;
        gap: 50px;
    }

    .footer-links {
        justify-content: center; /* 让链接列在中间对齐 */
        gap: 40px;
    }
}

/* 移动设备 (宽度小于 768px) */
@media (max-width: 768px) {
    .footer-bottom {
        flex-direction: column; /* 版权信息也垂直堆叠 */
        align-items: center;
    }

    .footer-bottom .legal-links {
        margin-left: 0; /* 移除左边距 */
        margin-top: 10px;
    }

    .footer-bottom a {
        margin: 0 10px; /* 调整链接间距 */
    }
}


        .page-header h1 {
            font-size: 2.8em;
            color: #004d40; /* 绿欧科技的主色调 */
            margin-bottom: 15px;
            position: relative;
            z-index: 1; /* 确保文字在背景图案之上 */
        }

        .page-header p {
            font-size: 1.1em;
            color: #555;
            max-width: 700px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        /* 服务网格布局 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); /* 响应式网格 */
            gap: 30px;
            margin-bottom: 50px;
        }

        .service-item {
            background-color: #ffffff;
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            border-left: 5px solid #00796b; /* 左侧强调色 */
        }

        .service-item:hover {
            transform: translateY(-8px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
        }

        .service-item h3 {
            color: #004d40;
            font-size: 1.6em;
            margin-top: 0;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
        }

        .service-item h3 i {
            margin-right: 15px;
            color: #00796b;
            font-size: 1.2em;
        }

        .service-item p {
            color: #666;
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .service-item ul {
            list-style: none;
            padding: 0;
            margin-top: 15px;
        }

        .service-item ul li {
            position: relative;
            padding-left: 25px;
            margin-bottom: 8px;
            color: #555;
        }

        .service-item ul li::before {
            content: "\f00c"; /* Font Awesome check icon */
            font-family: "Font Awesome 5 Free";
            font-weight: 900;
            position: absolute;
            left: 0;
            color: #00796b;
        }

        /* 服务流程 */
        .service-process {
            background-color: #f0fdf4; /* 浅绿色背景 */
            padding: 60px 20px;
            text-align: center;
            border-radius: 10px;
            margin-bottom: 50px;
            box-shadow: inset 0 0 15px rgba(0, 121, 107, 0.05); /* 内阴影 */
        }

        .service-process h2 {
            font-size: 2.5em;
            color: #004d40;
            margin-bottom: 40px;
            position: relative;
        }
        
        .service-process h2::after {
            content: '';
            display: block;
            width: 80px;
            height: 4px;
            background-color: #00796b;
            margin: 15px auto 0;
            border-radius: 2px;
        }

        .process-steps {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 30px;
        }

        .process-steps .step {
            flex: 1;
            min-width: 220px;
            max-width: 280px;
            background-color: white;
            padding: 25px;
            border-radius: 10px;
            box-shadow: 0 3px 15px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s ease;
            position: relative;
            z-index: 1;
        }

        .process-steps .step:hover {
            transform: translateY(-5px);
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
        }

        .process-steps .step strong {
            display: block;
            font-size: 1.4em;
            color: #00796b;
            margin-bottom: 10px;
        }

        .process-steps .step p {
            color: #777;
            font-size: 0.95em;
        }

        /* 步骤之间的连接线 (仅在非移动端显示) */
        @media (min-width: 768px) {
            .process-steps::before {
                content: '';
                position: absolute;
                top: 50%;
                left: 50%;
                transform: translate(-50%, -50%);
                width: calc(100% - 100px); /* 适应宽度 */
                height: 2px;
                background-color: #c8e6c9; /* 浅绿色线条 */
                z-index: 0;
            }
            .process-steps {
                position: relative; /* 为伪元素定位 */
            }
        }


        /* 为什么选择我们 */
        .why-choose-us {
            background-color: #ffffff;
            padding: 60px 20px;
            text-align: center;
            border-radius: 10px;
            margin-bottom: 50px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
            position: relative;
            overflow: hidden;
        }
        
        .why-choose-us::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('data:image/svg+xml,%3Csvg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"%3E%3Cg fill="%23f0fdf4" fill-opacity="0.4" fill-rule="evenodd"%3E%3Cpath d="M0 0h30v30H0V0zm30 30h30v30H30V30z"/%3E%3C/g%3E%3C/svg%3E'); /* 轻微的方格背景图案 */
            z-index: 0;
            opacity: 0.5;
        }

        .why-choose-us h2 {
            font-size: 2.5em;
            color: #004d40;
            margin-bottom: 40px;
            position: relative;
            z-index: 1;
        }
        
        .why-choose-us h2::after {
            content: '';
            display: block;
            width: 80px;
            height: 4px;
            background-color: #00796b;
            margin: 15px auto 0;
            border-radius: 2px;
        }

        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            position: relative;
            z-index: 1;
        }

        .advantage-item {
            background-color: #e8f5e9; /* 浅绿背景 */
            padding: 25px;
            border-radius: 8px;
            text-align: left;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s ease;
        }
        
        .advantage-item:hover {
            transform: translateY(-5px);
        }

        .advantage-item i {
            font-size: 2.5em;
            color: #00796b;
            margin-bottom: 15px;
        }

        .advantage-item h4 {
            font-size: 1.4em;
            color: #004d40;
            margin-top: 0;
            margin-bottom: 10px;
        }

        .advantage-item p {
            color: #666;
            font-size: 0.95em;
        }


        /* CTA 部分 */
        .cta {
            padding: 70px 20px;
            text-align: center;
            background: linear-gradient(45deg, #004d40, #00796b); /* 绿色渐变 */
            color: white;
            border-radius: 10px;
            margin-bottom: 40px;
            box-shadow: 0 8px 25px rgba(0, 77, 64, 0.3);
        }

        .cta h2 {
            font-size: 2.8em;
            margin-bottom: 20px;
            color: white;
        }

        .cta p {
            font-size: 1.2em;
            margin-bottom: 40px;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
            opacity: 0.9;
        }

        .cta-button {
            background-color: #ffb300; /* 醒目的黄色 */
            color: #333;
            padding: 18px 40px;
            text-decoration: none;
            border-radius: 50px; /* 圆角按钮 */
            font-size: 1.3em;
            font-weight: bold;
            display: inline-block;
            transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }

        .cta-button:hover {
            background-color: #ffc107; /* 悬停变亮 */
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            nav {
                flex-direction: column;
            }
            nav a {
                margin: 5px 0;
            }
            .page-header h1 {
                font-size: 2em;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .process-steps {
                flex-direction: column;
                align-items: center;
            }
            .process-steps .step {
                width: 90%;
                max-width: 400px;
            }
            .process-steps::before {
                display: none; /* 隐藏移动端流程线 */
            }
            .advantages-grid {
                grid-template-columns: 1fr;
            }
            .cta h2 {
                font-size: 2em;
            }
            .cta p {
                font-size: 1em;
            }
        }