@charset "utf-8";

 :root {
            --primary-color: #cf2e2e;
            --secondary-color: #32373c;
            --text-color: #333;
            --white: #ffffff;
            --gray: #abb8c3;
            --gap: 24px;
            --content-width: 1200px;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Roboto', sans-serif;
            color: var(--text-color);
            line-height: 1.6;
        }
        
        .container {
            max-width: var(--content-width);
            margin: 0 auto;
            padding: 0 5px 50px 5px;
        }
       /* 导航栏 */
.navbar {
    padding: 15px 0;
    text-align: center;
    background: #fff; /* 可根据你的页面背景调整 */
    box-shadow: 0 2px 5px rgba(0,0,0,0.05); /* 可选：轻微阴影 */
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

/* Logo 样式 */
.navbar .logo img {
    height: 60px; /* 控制Logo高度，可自行调整 */
    width: auto;
    display: block;
}

/* 导航菜单 */
.navbar ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin: 0;
    padding: 0;
}

.navbar a {
    text-decoration: none;
    color: var(--secondary-color);
    font-weight: 500;
    transition: color 0.3s;
}

.navbar a:hover {
    color: var(--primary-color);
}
        
        /* 英雄区 */
.hero {
  position: relative;
  color: var(--white);
  padding: 80px 0;
  text-align: center;
  min-height: 600px; /* 保证高度 */
  display: flex;
  align-items: center;
  overflow: hidden;
}

/* 视频背景 */
.hero-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover; /* 铺满不变形 */
  z-index: -2;
}

/* 黑色半透明遮罩（让文字更清晰） */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  z-index: -1;
}

/* 原有内容样式保留 */
.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.hero ul {
  list-style: none;
  max-width: 800px;
  margin: 0 auto 30px;
  text-align: left;
}

.hero li {
  margin-bottom: 10px;
  padding-left: 25px;
  position: relative;
}

.hero li::before {
  content: '>>';
  position: absolute;
  left: 0;
  color: var(--primary-color);
}
        
        /* 按钮样式 */
        .btn {
            display: inline-block;
            background: var(--primary-color);
            color: var(--white);
            padding: 12px 24px;
            border-radius: 4px;
            text-decoration: none;
            font-weight: 600;
            transition: background 0.3s;
            border: none;
            cursor: pointer;
        }
        
        .btn:hover {
            background: #a82424;
        }
        
        /* 优势区块 */
        .features {
            padding: 80px 0;
        }
        
        .features h2 {
            text-align: center;
            margin-bottom: 40px;
            font-size: 2rem;
        }
        
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--gap);
        }
        
        .feature-card {
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        
        .feature-card h3 {
            margin-bottom: 15px;
            color: var(--secondary-color);
        }
        
        /* 产品区 */
        .products {
            padding: 80px 0;
            background: #f9f9f9;
        }
        
        .products h2 {
            text-align: center;
            margin-bottom: 40px;
            font-size: 2rem;
        }
        
        .product-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: var(--gap);
        }
        
        .product-card {
            background: var(--white);
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            text-align: center;
        }
        
        .product-card img {
            max-width: 100%;
            height: auto;
            margin-bottom: 15px;
            border-radius: 4px;
        }
        
        .product-card ul {
            list-style: none;
            text-align: left;
            margin: 15px 0;
        }
        
        .product-card li {
            margin-bottom: 8px;
            padding-left: 20px;
            position: relative;
        }
        
        .product-card li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: #4CAF50;
        }
        
        /* 质量承诺 */
        .quality {
            padding: 80px 0;
            text-align: center;
        }
        
        .quality h2 {
            margin-bottom: 20px;
            font-size: 2rem;
        }
        
        .quality-images {
            display: flex;
            flex-wrap: wrap;
            gap: var(--gap);
            justify-content: center;
            margin: 30px 0;
        }
        
        .quality-images img {
            max-width: 45%;
            height: auto;
            border-radius: 8px;
        }
        
        /* 供应商风险 */
        .risks {
            padding: 80px 0;
            background: #f9f9f9;
        }
         .risk-card-image img {
    width: 100%;
    height: auto; /* 自动高度，图片不会变形 */
    display: block;
	margin-bottom: 40px;
}
        .risks h2 {
            text-align: center;
            margin-bottom: 40px;
            font-size: 2rem;
        }
        
        .risk-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: var(--gap);
        }
        
        .risk-card {
            padding: 30px;
            background: var(--white);
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        
        .risk-card h3 {
            margin-bottom: 20px;
            color: var(--primary-color);
        }
        
        /* COA报告 */
        .coa {
            padding: 80px 0;
        }
        
        .coa h2 {
            text-align: center;
            margin-bottom: 40px;
            font-size: 2rem;
        }
        
        .coa-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: var(--gap);
        }
        
        .coa-item {
            text-align: center;
        }
        
        .coa-item img {
            max-width: 100%;
            height: auto;
            border-radius: 4px;
            margin-bottom: 10px;
        }
        
        /* 工厂展示 */
        .factory {
            padding: 80px 0;
            background: #f9f9f9;
        }
        
        .factory h2 {
            text-align: center;
            margin-bottom: 40px;
            font-size: 2rem;
        }
        
        .factory-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: var(--gap);
            align-items: center;
        }
        
        .factory-content img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
        }
        
        /* 服务团队 */
        .team {
            padding: 80px 0;
            text-align: center;
        }
        
        .team h2 {
            margin-bottom: 40px;
            font-size: 2rem;
        }
        
        .team-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: var(--gap);
        }
        
        .team-member {
            text-align: center;
        }
        
        .team-member img {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            margin-bottom: 10px;
        }
        
        /* 客户评价 */
        .testimonials {
            padding: 80px 0;
            background: #f9f9f9;
        }
        
        .testimonials h2 {
            text-align: center;
            margin-bottom: 40px;
            font-size: 2rem;
        }
        
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--gap);
        }
        
        .testimonial-item img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
        }
        
        /* FAQ */
        .faq {
            padding: 80px 0;
        }
        
        .faq h2 {
            text-align: center;
            margin-bottom: 40px;
            font-size: 2rem;
        }
        
        .faq-item {
            margin-bottom: 15px;
            border: 1px solid #eee;
            border-radius: 8px;
            overflow: hidden;
        }
        
        .faq-question {
            padding: 15px 20px;
            background: #f9f9f9;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
        }
        
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s, padding 0.3s;
        }
        
        .faq-answer.active {
            padding: 15px 20px;
            max-height: 500px;
        }
        
        /* 联系区 */
        .contact {
            padding: 80px 0;
            background: var(--secondary-color);
            color: var(--white);
            text-align: center;
        }
        
        .contact h2 {
            margin-bottom: 20px;
            font-size: 2rem;
        }
        
        .contact-info {
            margin-bottom: 30px;
        }
        
        .contact-form {
            max-width: 600px;
            margin: 0 auto;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px;
            border: none;
            border-radius: 4px;
            font-family: inherit;
        }
        
        /* 悬浮联系栏 */
        .floating-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            display: flex;
            justify-content: center;
            gap: 15px;
            padding: 15px;
            background: transparent;
            z-index: 9999;
        }
        
        .floating-btn {
            background: #4DC247;
            color: var(--white);
            padding: 12px 24px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 3px 8px rgba(0,0,0,0.1);
        }
        
        /* 弹窗 */
        .popup {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0,0,0,0.8);
            display: none;
            justify-content: center;
            align-items: center;
            z-index: 9999;
        }
        
        .popup-content {
            background: var(--white);
            padding: 40px;
            border-radius: 8px;
            max-width: 500px;
            width: 90%;
        }
        
        /* 响应式 */
		@media (max-width: 768px) {
    .floating-bar {
        justify-content: space-between; /* 关键：左右分开 */
        padding-left: 10px;
        padding-right: 10px;
    }
    .floating-btn {
        flex: 1; /* 平分宽度 */
        max-width: 48%; /* 防止太宽 */
        justify-content: center;
    }
}

        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2rem;
            }
            
            .quality-images img {
                max-width: 100%;
            }
            
            .risk-grid,
            .factory-content {
                grid-template-columns: 1fr;
            }
            
        }
        
        /* 懒加载 */
        img.lazy {
            opacity: 0;
            transition: opacity 0.3s;
        }
        
        img.lazy.loaded {
            opacity: 1;
        }