/* --- 基础样式 --- */
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; line-height: 1.6; color: #333; background-color: #f9f9f9; }
        a { text-decoration: none; color: inherit; }
        ul { list-style: none; }
        img { max-width: 100%; display: block; }
        .container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
        .btn { display: inline-block; padding: 12px 30px; background-color: #d4af37; color: #fff; border-radius: 4px; font-weight: bold; transition: background 0.3s; }
        .btn:hover { background-color: #b8962e; }
        .section-title { text-align: center; font-size: 2rem; margin-bottom: 10px; color: #222; }
        .section-desc { text-align: center; color: #666; margin-bottom: 40px; }

        /* --- 导航栏 --- */
        header { background: rgba(255,255,255,0.95); padding: 15px 0; box-shadow: 0 2px 5px rgba(0,0,0,0.05); position: fixed; width: 100%; top: 0; z-index: 1000; }
        header .container { display: flex; justify-content: space-between; align-items: center; }
        .logo { font-size: 1.5rem; font-weight: bold; color: #d4af37; }

        /* --- 顶部视频首屏 --- */
        .hero { 
            position: relative; 
            height: 100vh; 
            overflow: hidden; 
            display: flex; 
            align-items: center; 
            justify-content: center; 
            text-align: center; 
            color: #fff; 
            margin-top: 60px;
        }
        .hero video {
            position: absolute;
            top: 50%;
            left: 50%;
            min-width: 100%;
            min-height: 100%;
            transform: translate(-50%, -50%);
            z-index: -2;
            object-fit: cover;
        }
        .hero::after {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(0, 0, 0, 0.5); /* 视频遮罩，让文字更清晰 */
            z-index: -1;
        }
        .hero-content { z-index: 1; padding: 0 20px; }
        .hero h1 { font-size: 2.8rem; margin-bottom: 20px; }
        .hero p { font-size: 1.2rem; margin-bottom: 30px; max-width: 700px; margin-left: auto; margin-right: auto; }

        /* --- 通用模块间距 --- */
        section { padding: 80px 0; }
        .bg-white { background: #fff; }

        /* --- 数据实力 --- */
        .stats { display: flex; justify-content: space-around; flex-wrap: wrap; gap: 20px; text-align: center; }
        .stat-item h3 { font-size: 2.5rem; color: #d4af37; }

        /* --- 图片网格通用样式 --- */
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
        }
        .gallery-grid img {
            width: 100%;
            height: 250px;
            object-fit: cover;
            border-radius: 8px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.1);
            transition: transform 0.3s;
        }
        .gallery-grid img:hover { transform: scale(1.03); }

               /* --- 产品网格升级版 --- */
        .product-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 25px;
        }
        .product-card {
            background: #fff;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 4px 10px rgba(0,0,0,0.08);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .product-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.12);
        }
        .product-card img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            display: block;
        }
        .product-info {
            padding: 15px;
            text-align: center;
        }
        .product-info h4 {
            font-size: 1.1rem;
            color: #222;
            margin-bottom: 5px;
        }
        .product-info p {
            font-size: 0.9rem;
            color: #666;
            margin: 0;
        }
        .product-grid img:hover { transform: scale(1.03); }

        /* --- 核心优势 --- */
        .adv-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; }
        .adv-card { background: #fff; padding: 30px; border-radius: 8px; box-shadow: 0 4px 10px rgba(0,0,0,0.05); text-align: center; }
        .adv-card h3 { margin-bottom: 15px; color: #222; }

        /* --- 认证 --- */
        .cert-list { display: flex; justify-content: center; flex-wrap: wrap; gap: 30px; margin-top: 30px; }
        .cert-item { background: #f4f4f4; padding: 20px 40px; border-radius: 5px; font-weight: bold; color: #555; }

        /* --- 底部 --- */
        footer { background: #222; color: #fff; text-align: center; padding: 40px 20px; }
        footer p { margin-bottom: 10px; }

        /* --- 移动端适配 --- */
        @media (max-width: 768px) {
            .hero h1 { font-size: 2rem; }
            .hero p { font-size: 1rem; }
            .gallery-grid img, .product-grid img { height: 200px; }
        }
/* --- 轮播图基础布局 --- */
.single-product-carousel-section {
    padding: 60px 20px;
    background-color: #f9f9f9; /* 浅灰背景，可根据需要修改 */
    text-align: center;
}

.carousel-container {
    max-width: 1200px;
    margin: 0 auto;
}

.carousel-title {
    font-size: 2rem;
    margin-bottom: 40px;
    color: #222;
}

.carousel-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 隐藏超出范围图片 */
.carousel-track-container {
    overflow: hidden;
    width: 100%;
    padding: 20px 0; /* 上下留白防止阴影被切掉 */
}

/* 图片轨道 */
.carousel-track {
    display: flex;
    transition: transform 0.5s ease-in-out; /* 平滑滑动效果 */
    gap: 20px; /* 卡片之间的间距 */
}

/* 单个卡片样式 */
.carousel-slide {
    min-width: calc(33.333% - 14px); /* 默认一行展示3个 (减去gap的均分宽度) */
    background: #fff;
    border-radius: 12px;
    padding: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    box-sizing: border-box;
}

.carousel-slide img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
    object-fit: cover;
}

/* --- 左右切换按钮 --- */
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: #fff;
    border: 1px solid #ddd;
    color: #333;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.carousel-btn:hover {
    background-color: #d4af37; /* 悬停变金色 */
    color: #fff;
    border-color: #d4af37;
}

.prev-btn { left: -60px; }
.next-btn { right: -60px; }

/* --- 底部指示点 --- */
.carousel-dots {
    display: flex;
    justify-content: center;
    margin-top: 25px;
    gap: 10px;
}

.dot {
    width: 12px;
    height: 12px;
    background-color: #ccc;
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.3s;
}

.dot.active {
    background-color: #d4af37; /* 激活状态金色 */
    transform: scale(1.2);
}

/* --- 移动端响应式适配 --- */
@media (max-width: 992px) {
    .carousel-slide {
        min-width: calc(50% - 10px); /* 平板显示2个 */
    }
    .prev-btn { left: 0; }
    .next-btn { right: 0; }
}

@media (max-width: 576px) {
    .carousel-slide {
        min-width: 100%; /* 手机显示1个 */
    }
    .single-product-carousel-section {
        padding: 40px 15px;
    }
    .carousel-title {
        font-size: 1.5rem;
        margin-bottom: 25px;
    }
}