/* 基础全局样式 */
        body {
            font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f9f9fa;
            margin: 0;
            padding: 0;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 顶部标题区域 */
        .project-header {
            text-align: center;
            padding: 60px 0 40px;
            background-color: #fff;
            border-bottom: 1px solid #eaeaea;
        }
        .project-header h1 {
            font-size: 32px;
            color: #1a1a1a;
            margin-bottom: 15px;
        }
        .project-header p {
            color: #666;
            max-width: 800px;
            margin: 0 auto;
            font-size: 16px;
        }

        /* 核心解决方案区块 */
        .solutions-section {
            padding: 60px 0;
        }
        .section-title {
            text-align: center;
            font-size: 28px;
            margin-bottom: 50px;
            color: #1a1a1a;
            position: relative;
        }
        .section-title::after {
            content: '';
            display: block;
            width: 60px;
            height: 3px;
            background-color: #cc0000; /* 标志性红 */
            margin: 15px auto 0;
        }

        /* 图文交替排版 */
        .feature-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 60px;
            background: #fff;
            padding: 40px;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        }
        .feature-row.reverse {
            flex-direction: row-reverse;
        }
        .feature-text {
            flex: 1;
            padding: 0 40px;
        }
        .feature-text h3 {
            font-size: 22px;
            color: #cc0000;
            margin-bottom: 15px;
        }
        .feature-text p {
            margin-bottom: 15px;
            color: #555;
            text-align: justify;
        }
        .feature-text .highlight {
            font-weight: bold;
            color: #1a1a1a;
        }
        .feature-image {
            flex: 1;
            text-align: center;
        }
        
        /* 图片尺寸统一 */
        .feature-image img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            display: block;
            border-radius: 6px;
            box-shadow: 0 6px 16px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }
        
        .feature-image img:hover {
            transform: scale(1.02);
        }

        /* 交付价值区域：现代浅灰背景 + 极致清晰护眼正文 */
        .value-section {
            background-color: #f0f2f5;
            color: #2c3e50;
            padding: 60px 0;
            border-top: 1px solid #e1e4e8;
        }
        .value-section .section-title {
            color: #1a1a1a;
        }
        .value-section .section-title::after {
            background-color: #4a5568;
        }
        .value-grid {
            display: flex;
            justify-content: space-between;
            gap: 30px;
        }
        .value-card {
            background: #ffffff;
            padding: 35px 30px;
            border-radius: 8px;
            flex: 1;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
            border: 1px solid #e2e8f0;
        }
        .value-card h4 {
            font-size: 18px;
            margin-bottom: 15px;
            border-bottom: 1px solid #edf2f7;
            padding-bottom: 12px;
            color: #1a202c;
        }
        .value-card p {
            font-size: 15px;
            line-height: 1.7;
            color: #4a5568;
            margin: 0;
        }

        /* 响应式适配 (移动端) */
        @media (max-width: 768px) {
            .feature-row, .feature-row.reverse {
                flex-direction: column;
                padding: 20px;
            }
            .feature-text {
                padding: 0 0 20px 0;
            }
            .value-grid {
                flex-direction: column;
            }
        }