/* --- Utility Classes --- */
        .container {
            /* 页面宽度修改为 1380px */
            max-width: 1380px; 
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .section-cc { padding: 100px 0; }
        .tag {
            font-size: 14px; 
            text-transform: uppercase;
            font-weight: 700;
            color: var(--primary-green);
            margin-bottom: 15px;
            display: block;
            letter-spacing: 1px;
        }
        
        .btn {
            display: inline-flex;
            align-items: center;
            background:black;
            color: var(--white);
            padding: 14px 28px; 
            border-radius: 50px;
            font-size: 16px; 
            font-weight: 600;
			color:white;
            transition: 0.3s;
        }
        .btn span { margin-left: 10px; background: #333; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; font-size: 12px; }
        .btn:hover { opacity: 0.9; }

        /* --- 1. Hero Section --- */
        .hero { padding-top: 80px; padding-bottom: 80px; }
        .hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
        .hero-title { font-size: 60px; margin-bottom: 25px;font-weight:700 }
        .hero-title span { color:#6B9C48; }
        .hero-desc { color: var(--text-gray); margin-bottom: 40px; font-size: 20px; }
        .stats { display: flex; gap: 50px; margin-top: 70px; }
        .stat-item h3 { font-size: 28px; color: #6B9C48;font-weight:700 }
        .stat-item p { font-size: 14px; color: var(--text-gray); }
        .hero-image-wrapper { position: relative; border-radius: 8px; overflow: hidden; height: 550px; }
        .hero-image-wrapper img { width: 100%; height: 100%; }
        .hero-overlay { position: absolute; bottom: 30px; right: 30px; background:white; padding: 15px; border-radius: 12px; display: flex; gap: 15px; align-items: center; box-shadow: 0 10px 20px rgba(0,0,0,0.1); max-width: 250px; }
        .hero-overlay img { width: 70px; height: 70px; border-radius: 8px; }
        .hero-overlay p { font-size: 12px; color: var(--text-gray); line-height: 1.4; }
        .logos { display: flex; justify-content: space-between; margin-top: 80px; opacity: 0.5; flex-wrap: wrap; gap: 20px; }
        .logos span { font-weight: 700; font-size: 20px; color: #c3c3c3; display: flex; align-items: center; gap: 5px; }

        /* --- 2. Benefits Section (Dark) --- */
        .benefits { background:#485F4E; color:white; }
        .benefits-grid { display: grid; grid-template-columns: 1fr 1.2fr 1fr; gap: 50px; align-items: center; }
        .benefits-left h2 { font-size: 52px; margin-bottom: 20px;font-weight:700;color:white }
        .benefits-left p { color: #aaa; font-size: 16px; margin-top: 50px; }
        .benefits-center img { border-radius: 8px; height: 500px; width: 100%; }
        .benefit-list { display: flex; flex-direction: column; gap: 40px; } 
        .benefit-item { display: flex; gap: 20px; }
        .icon-circle { min-width: 45px; height: 45px; background:#D2E89F; border-radius: 50%; display: flex; align-items: center; justify-content: center; color:#485F4E; }
        .benefit-text h4 { font-size: 18px; margin-bottom: 5px;color:white;font-weight:700 }
        .benefit-text p { font-size: 14px; color: #aaa; }

        /* --- 3. Solutions Section --- */
        .solutions { text-align: center; }
        .solutions h2 { font-size: 46px; margin-bottom: 80px; }
        .solutions-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: left; margin-bottom: 100px; }
        .sol-item { padding: 20px; }
        .sol-icon { color: var(--primary-green); margin-bottom: 15px; font-size: 28px; }
        .sol-item h4 { font-size: 20px; margin-bottom: 10px; }
        .sol-item p { font-size: 14px; color: var(--text-gray); }
        .project-list { display: flex; flex-direction: column; gap: 0; text-align: left; }
        .project-row { display: flex; justify-content: space-between; padding: 35px 0; border-bottom: 1px solid #eee; align-items: center; cursor: pointer; transition: 0.2s; }
        .project-row:hover { background: #fafafa; padding-left: 10px; padding-right: 10px;}
        .project-left { display: flex; gap: 40px; align-items: center; }
        .p-num { font-size: 20px; color: var(--text-gray); font-weight: 600; }
        .p-name { font-size: 24px; font-weight: 600; }
        .p-loc { font-size: 16px; color: var(--text-gray); display: flex; align-items: center; gap: 5px; }

        /* --- 4. Testimonials (Slider) --- */
        .testimonials { padding-bottom: 120px; }
        .testimonials h2 { text-align: center; font-size: 46px;}
		.testimonials span{text-align: center;margin-bottom: 60px;}
        .slider-container { display: grid; grid-template-columns: 1fr 3.5fr; border-radius: 0; overflow: hidden; min-height: 450px; }
        .slider-image-box { position: relative; height: 100%; }
        .slider-image-box img { width: 100%; height: 100%; object-fit: cover; display: none; } 
        .slider-image-box img.active { display: block; animation: fadeIn 0.5s; }
        .slider-content-box { background: #F4F9EC; padding: 80px; display: flex; flex-direction: column; justify-content: center; position: relative; }
        .slide-text { display: none; }
        .slide-text.active { display: block; animation: slideUp 0.5s; }
        .slide-text h3 { font-size: 30px; margin-bottom: 25px;font-weight:700; }
        .slide-text p { font-size: 16px; color: var(--text-gray); margin-bottom: 50px; line-height: 1.8; }
        .slide-author { font-size: 14px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; }
        .slider-controls { position: absolute; bottom: 40px; right: 40px; display: flex; gap: 15px; }
        .arrow { width: 45px;color:#485F4E; height: 45px; border: 1px solid #ccc; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: 0.3s; }
        .arrow.active { background:#485F4E; color: white; border-color: var(--primary-dark); }


        /* --- 5. Steps Section (REBUILT to match image_d007bb.jpg) --- */
        .steps {
            background:#485F4E;
            color:white;
            overflow: hidden;
        }

        .steps-container {
            display: grid;
            grid-template-columns: 1fr 0.8fr; 
            gap: 50px;
            align-items: center;
            min-height: 600px;
        }

        .steps-left h2 { font-size: 52px; margin-bottom: 30px;color:white;font-weight:700 }
        .steps-left .tag { color: #ccc; font-weight: 400; font-size: 16px; }

        /* 步骤横向和错位布局容器 */
        .steps-staggered-wrapper {
            position: relative;
            display: flex;
            justify-content: space-between;
            padding-top: 50px; 
            min-height: 400px; 
        }
        
        /* 两条纵向线条 */
        .steps-staggered-wrapper::before, 
        .steps-staggered-wrapper::after {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            width: 1px;
            background: var(--line-color);
        }

        .steps-staggered-wrapper::before { 
            left: 33.33%; 
        }
        .steps-staggered-wrapper::after { 
            right: 33.33%;
        }

        /* 单个步骤项 */
        .step-item {
            flex-basis: 33%; 
            max-width: 300px;
            font-size: 15px;
            line-height: 1.6;
			padding:10px;
        }
        .step-item .step-num {
            font-size: 18px; 
            color: var(--primary-green);
            margin-bottom: 10px; 
            font-weight: 700;
            display: block;
        }
        .step-item .step-desc {
            font-size: 15px;
            color: #aaa;
        }
        
        /* 步骤错位效果 */
        .step-item:nth-child(2) {
            margin-top: 100px; 
        }
        .step-item:nth-child(3) {
            margin-top: 250px; 
        }

        /* 右侧图片布局 */
        .steps-right {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px; 
            height: 600px; 
        }

        /* 左列：单个图片，高 */
        .steps-right > .step-img-col:first-child { 
             margin-top: 0;
        }
        .steps-right > .step-img-col:first-child > .step-img:first-child {
            height: 100%; 
        }

        /* 右列：两个图片，堆叠 */
        .step-img-col { 
            display: flex; 
            flex-direction: column; 
            gap: 15px; 
        }
        .steps-right > .step-img-col:last-child > .step-img:first-child {
            height: 50%; 
        }
        .steps-right > .step-img-col:last-child > .step-img:last-child {
            height: 50%; 
        }
        
        .step-img { border-radius: 8px; overflow: hidden; height: 100%; }
        .step-img img { width: 100%; height: 100%; object-fit: cover; }
        
        /* Animations */
        @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
        @keyframes slideUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

        /* --- Responsive --- */
        @media (max-width: 900px) {
            .hero-grid, .benefits-grid, .steps-container { grid-template-columns: 1fr; }
            .benefits-grid { display: flex; flex-direction: column-reverse; }
            .solutions-grid { grid-template-columns: 1fr 1fr; }
            .slider-container { grid-template-columns: 1fr; }
            
            .hero-title { font-size: 52px; }
            .benefits-left h2, .steps-left h2, .testimonials h2 { font-size: 40px; }
            .logos { justify-content: center; }
            .slider-content-box { padding: 20px; }
            
            /* 移动端步骤模块调整 */
            .steps-staggered-wrapper { 
                flex-direction: column; 
                min-height: auto;
                padding-top: 20px;
                padding-left: 20px;
                border-left: 2px solid var(--line-color);
            }
            .steps-staggered-wrapper::before, .steps-staggered-wrapper::after {
                display: none; 
            }
            .step-item {
                margin-top: 0 !important; 
                padding-left: 15px;
                position: relative;
                margin-bottom: 30px;
            }
            .step-item::before { 
                content: '';
                position: absolute;
                left: -30px; 
                top: 5px;
                width: 14px;
                height: 14px;
                background: var(--primary-dark);
                border: 2px solid var(--accent-green); 
                border-radius: 50%;
                z-index: 1;
            }
            /* 移动端图片布局简化 */
            .steps-right { display: grid; grid-template-columns: 1fr; height: 600px; }
            .steps-right > .step-img-col:first-child { display: none; }
        }

        @media (max-width: 600px) {
            .solutions-grid { grid-template-columns: 1fr; }
            .hero-image-wrapper { height: 350px; }
            .hero-title { font-size: 40px; }
            .stats { gap: 20px; flex-direction: row;}
            .benefit-list { gap: 30px; }
            .slider-controls { right: 20px; bottom: 20px; }
        }