* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
    font-family: 'AlimamaFangYuanTi';
    line-height: 1.6;
    color: #333;
    background-color: #fafafa;
}

        /* Header */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            z-index: 1000;
            padding: 1rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid #f0f0f0;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: bold;
            color: #000;
        }

        .nav {
            display: flex;
            gap: 2rem;
        }

        .nav a {
            text-decoration: none;
            color: #333;
            font-weight: 500;
            transition: color 0.3s;
        }

        .nav a:hover {
            color: #666;
        }

        .content-image {
            width: 100%;
            height: 150px; /* 减小高度，原来是200px */
            overflow: hidden;
        }
        
        .card-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .header-icons {
            display: flex;
            gap: 1rem;
        }

        .icon {
            width: 24px;
            height: 24px;
            cursor: pointer;
        }

        .hero {
            position: relative;
            min-height: 100vh;
            background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            overflow: hidden;
        }
        
        .hero-content {
            text-align: center;
            z-index: 2;
            margin-bottom: 60px;
            position: relative;
        }
        
        .hero-text {
            font-size: 2.5rem;
            font-weight: 300;
            color: #333;
            margin: 20px 0;
            letter-spacing: 2px;
            opacity: 0;
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            transition: all 0.8s ease;
        }
        
        .hero-text.active {
            opacity: 1;
            transform: translate(-50%, -50%) scale(1);
        }
        
        .hero-text.right {
            font-size: 1.8rem;
            line-height: 1.4;
        }
        
        .hero-indicator {
            position: absolute;
            bottom: 2rem;
            display: flex;
            gap: 0.5rem;
            height: 12px;
            align-items: flex-end;
        }
        
        .indicator-dot {
            width: 40px;
            height: 4px;
            background: #ffffff;
            border-radius: 2px;
            cursor: pointer;
            transition: height 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            position: relative;
            overflow: visible;
        }
        
        .indicator-dot.active {
            background: #ff6b35; /* 橙色 */
        }
        
        /* 悬停时的凸起效果 */
        .indicator-dot:hover {
            height: 8px;
            background: rgba(255, 255, 255, 0.8);
        }
        
        .indicator-dot.active:hover {
            background: #ff6b35;
        }
        
        /* 点击效果 */
        .indicator-dot:active {
            height: 6px;
        }
        
        /* 进度条动画 */
        .progress-bar {
            position: absolute;
            top: 0;
            left: 0;
            height: 100%;
            width: 0;
            background: #ff6b35;
            border-radius: 2px;
            transition: width 0.1s linear;
        }
        
        .indicator-dot.active .progress-bar {
            animation: progress 5s linear infinite;
        }
        
        @keyframes progress {
            0% {
                width: 0%;
            }
            100% {
                width: 100%;
            }
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .hero-text {
                font-size: 2rem;
            }
            
            .hero-text.right {
                font-size: 1.4rem;
            }
            
            .hero-indicator {
                gap: 0.3rem;
                height: 10px;
            }
            
            .indicator-dot {
                width: 30px;
                height: 3px;
            }
            
            .indicator-dot:hover {
                height: 6px;
            }
        }
        
/* 新的文字容器样式 - 添加到现有CSS后面 */
.hero-text-container {
    position: absolute;
    top: 10%;
    left: 0;
    width: 100%;
    height: auto;
    z-index: 3;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 0 5%;
    box-sizing: border-box;
}

.hero-text-item {
    flex: 1;
    display: flex;
    justify-content: flex-start; /* 改为左对齐 */
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.hero-text-item.active {
    opacity: 1;
    transform: translateY(0);
}

.hero-text-item .text-box {
    background: transparent;
    color: rgba(255, 255, 255, 0.7);
    padding: 15px 0;
    font-size: 1.2rem;
    font-weight: 300;
    text-align: left;
    line-height: 1.2;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    white-space: nowrap;
    letter-spacing: 1px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-text-container {
        top: 15%;
        padding: 0 3%;
    }
    
    .hero-text-item {
        justify-content: flex-start; /* 移动端也左对齐 */
    }
    
    .hero-text-item .text-box {
        padding: 10px 0; /* 左右内边距改为0 */
        font-size: 1rem;
        font-weight: 300;
        max-width: 150px;
        white-space: nowrap;
        text-align: left; /* 移动端也左对齐 */
    }
}

@media (max-width: 480px) {
    .hero-text-container {
        flex-direction: column;
        gap: 15px;
        top: 10%;
    }
    
    .hero-text-item {
        flex: none;
        justify-content: flex-start; /* 移动端也左对齐 */
    }
    
    .hero-text-item .text-box {
        max-width: 100%;
        font-size: 0.9rem;
        font-weight: 300;
        white-space: nowrap;
        text-align: left; /* 移动端也左对齐 */
    }
}

        .categories {
            padding: 4rem 2rem;
            background: #fff;
            max-width: 1400px;
            margin: 0 auto;
            position: relative;
        }
        
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: #000;
            margin-bottom: 3rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            position: relative;
            text-align: left;
            display: block;
        }
        
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            bottom: -8px;
            width: 120px;
            height: 4px;
            background: #000;
            z-index: 1;
        }
        
        /* 顶部大卡片 - 居中对齐 */
        .categories-top {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-bottom: 3rem;
            flex-wrap: wrap;
        }
        
        /* 底部小卡片 - 居中对齐 */
        .categories-bottom {
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
        }
        
        /* 卡片基础样式 - 修复跳动问题 */
        .category-card {
            background: #fafafa;
            border-radius: 8px;
            padding: 2rem;
            text-align: center;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            border: 2px solid transparent; /* 预留2px边框空间 */
            position: relative;
            overflow: hidden;
            box-sizing: border-box; /* 确保边框包含在尺寸内 */
        }
        
        /* 大卡片基础样式 */
.category-card.large {
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* AirPods Cases - 保持左对齐，宽度适中 */
.category-card.large:nth-child(1) { /* AirPods Cases */
    width: 260px;
    align-self: flex-start; /* 左对齐 */
}

/* Pad Cases - 居中，宽度适中 */
.category-card.large:nth-child(2) { /* Pad Cases */
    width: 260px;
    align-self: center; /* 居中 */
}

/* Phone Case - 右对齐，宽度最大 */
.category-card.large:nth-child(3) { /* Phone Case */
    width: 500px;
    align-self: flex-end; /* 右对齐 */
}
        
        /* 小卡片样式 */
        .category-card.small {
            width: 160px;
            min-height: 160px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 1.5rem 1rem;
        }
        
        /* 卡片标签 */
        .card-label {
            font-size: 0.875rem;
            color: #6c757d;
            margin-bottom: 1rem;
            font-weight: 500;
            align-self: flex-start;
            margin-left: 0;
        }
        

        /* 大卡片名称 - 左下角 */
.category-card.large .card-name {
    font-size: 1rem;
    font-weight: 600;
    color: #000;
    position: absolute;
    bottom: 2rem;  /* 距离底部2rem */
    left: 2rem;    /* 距离左边2rem */
    margin: 0;
    text-align: left;
}

/* 小卡片名称 - 底部居中 */
.category-card.small .card-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: #000;
    margin-top: auto; /* 推到底部 */
    margin-bottom: 0;
    text-align: center; /* 居中 */
}
        
        /* 悬停效果 - 修复跳动问题 */
        .category-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
            background: #fff;
            /* border: 2px solid #ff6b35; 使用预留的2px边框空间 */
        }
        
        .category-card.large:hover {
            background: #fff;
            box-shadow: 0 15px 50px rgba(0, 0, 0, 0.2);
            /* border: 2px solid #ff6b35; 使用预留的2px边框空间 */
        }
        
        /* 图标样式 */
/* 大卡片的图标尺寸 */
.card-icon {
    width: 200px;  /* 调整宽度 */
    height: 200px; /* 调整高度 */
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain; /* 保持图片比例 */
}

.categories-top .category-card:nth-child(3) .card-icon img {
    width: 180%;
    height: 180%;
    /* 或者 */
    transform: scale(1.2);
}

        
        /* 小卡片的图标尺寸 */
.category-card.small .card-icon {
    width: 100px;  /* 调整小图标宽度 */
    height: 100px; /* 调整小图标高度 */
}
        
        /* 具体图标保持不变... */
        .airpods-icon {
            background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 60"><rect x="10" y="20" width="80" height="20" rx="10" fill="%23000"/><circle cx="25" cy="30" r="8" fill="%23fff"/><circle cx="75" cy="30" r="8" fill="%23fff"/></svg>');
        }
        
        .pad-icon {
            background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 80"><rect x="20" y="10" width="60" height="50" rx="5" fill="%23000"/><rect x="25" y="15" width="50" height="40" fill="%23f8f9fa"/><rect x="30" y="60" width="40" height="15" rx="2" fill="%23333"/></svg>');
        }
        
        .phone-icon {
            background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 120"><rect x="30" y="10" width="40" height="100" rx="8" fill="%23e9ecef"/><rect x="32" y="12" width="36" height="96" rx="6" fill="%23f8f9fa"/><circle cx="50" cy="20" r="3" fill="%23000"/><rect x="40" y="25" width="20" height="15" rx="2" fill="%23000"/><rect x="35" y="45" width="30" height="2" fill="%23000"/><rect x="35" y="50" width="30" height="2" fill="%23000"/><rect x="35" y="55" width="30" height="2" fill="%23000"/></svg>');
        }
        
        .screen-icon {
            background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 60"><rect x="20" y="10" width="60" height="40" rx="3" fill="%23e9ecef"/><rect x="25" y="15" width="50" height="30" fill="%23000"/><circle cx="70" cy="25" r="8" fill="%23333"/></svg>');
        }
        
        .cardholder-icon {
            background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 80"><rect x="30" y="20" width="40" height="50" rx="3" fill="%23e9ecef"/><rect x="35" y="25" width="30" height="40" fill="%23f8f9fa"/><rect x="40" y="30" width="20" height="30" fill="%23000"/></svg>');
        }
        
        .powerbank-icon {
            background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 60"><rect x="20" y="15" width="60" height="30" rx="5" fill="%23000"/><rect x="25" y="20" width="50" height="20" fill="%23f8f9fa"/><circle cx="40" cy="30" r="3" fill="%23000"/><circle cx="60" cy="30" r="3" fill="%23000"/></svg>');
        }
        
        .watchband-icon {
            background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 60"><rect x="30" y="20" width="40" height="20" rx="10" fill="%23000"/><rect x="25" y="25" width="10" height="10" fill="%23333"/><rect x="65" y="25" width="10" height="10" fill="%23333"/></svg>');
        }
        
        .lanyard-icon {
            background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 80"><circle cx="50" cy="20" r="8" fill="%23333"/><path d="M50 28 Q30 40 20 60 Q30 70 50 60 Q70 70 80 60 Q70 40 50 28" stroke="%23000" stroke-width="3" fill="none"/></svg>');
        }
        
        .laptop-icon {
            background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 60"><rect x="15" y="10" width="70" height="40" rx="3" fill="%23e9ecef"/><rect x="20" y="15" width="60" height="30" fill="%23000"/><text x="50" y="35" text-anchor="middle" fill="%23fff" font-size="8">C30</text></svg>');
        }
        
        .holder-icon {
            background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 60"><circle cx="50" cy="30" r="15" fill="none" stroke="%23000" stroke-width="3"/><rect x="45" y="25" width="10" height="10" fill="%23e9ecef"/></svg>');
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .categories-top {
                flex-direction: column;
                align-items: center;
                gap: 1rem;
            }
            
            .categories-bottom {
                justify-content: center;
                gap: 0.5rem;
            }
            
            .category-card.large {
                width: 100%;
                max-width: 280px;
                min-height: 150px;
            }
            
            .category-card.small {
                width: 100px;
                min-height: 100px;
            }
            
            .card-name {
                font-size: 0.75rem;
            }
        }

        .recommended {
            padding: 4rem 2rem;
            max-width: 1400px;
            margin: 0 auto;
        }
        
        .section-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 3rem;
            position: relative;
        }
        
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: #000;
            text-transform: uppercase;
            letter-spacing: 1px;
            position: relative;
        }
        
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            bottom: -8px;
            width: 120px; /* 标题文字的大概宽度 */
            height: 4px;
            background: #000;
            z-index: 1;
        }
        
        /* 在 section-header 上添加贯穿整个宽度的细线 */
        .section-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -8px;
            width: 100%;
            height: 1px;
            background: #e9ecef;
            z-index: 0;
        }
       
        
        .view-all {
            color: #000;
            text-decoration: none;
            font-weight: 500;
            font-size: 1rem;
            transition: color 0.3s ease;
            position: relative;
        }
        
        .view-all:hover {
            color: #ff6b35;
        }
        
        
        /* 推荐产品区域 - 使用更具体的子类选择器 */
.recommended .products-container {
    position: relative;
    align-items: center;
    gap: 1rem;
}

.recommended .products-carousel {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    /*gap: 2rem;*/
    flex: 1;
    overflow: hidden;
    padding: 0 60px; /* 为按钮留出空间 */
}

.recommended .product-card {
    background: #fafafa;
    padding: 1.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.recommended .product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.recommended .product-image {
    width: 100%;
    height: 200px;
    margin-bottom: 1rem;
    border-radius: 8px;
    overflow: hidden;
    background: #f8f9fa;
}

.recommended .product-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* 产品名称和色卡同一行 */
.recommended .product-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

/* 描述和价格同一行 */
.recommended .product-details-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.5rem;
}

.recommended .product-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: #000;
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
    margin-right: 10px;
}

.recommended .product-description {
    font-size: 0.875rem;
    color: #666;
    margin: 0;
    line-height: 1.4;
    flex: 1;
    margin-right: 10px;
    white-space: normal;
    word-wrap: break-word;
    word-break: break-word;
    hyphens: auto;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.recommended .product-price {
    font-size: 1.2rem;
    font-weight: 700;
    color: #000;
    margin: 0;
    white-space: nowrap;
}

.recommended .color-swatches {
    display: flex;
    gap: 0.5rem;
    margin: 0;
}

.recommended .color-swatch {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: 1px solid #ddd;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.recommended .color-swatch:hover {
    transform: scale(1.1);
}

/* 轮播按钮样式 - 长方条按钮 */
.recommended .carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: #000;
    color: #fff;
    border: none;
    width: 30px;
    height: 60px;
    border-radius: 1px;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 10;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.recommended .carousel-btn:hover {
    background: #ff6b35;
    transform: translateY(-50%) scale(1.05);
}

.recommended .prev-btn {
    left: 70px;
}

.recommended .next-btn {
    right: 70px;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .recommended .products-carousel {
        grid-template-columns: repeat(3, 1fr);
        padding: 0 50px;
    }
}

@media (max-width: 1024px) {
    .recommended .products-carousel {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .recommended .products-carousel {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
        padding: 0 40px;
    }
    
    .recommended .product-card {
        padding: 1rem;
    }
    
    .recommended .product-image {
        height: 150px;
    }
    
    .recommended .carousel-btn {
        display: none;
    }
}

@media (max-width: 480px) {
    .recommended .products-carousel {
        grid-template-columns: 1fr;
        padding: 0 20px;
    }
}

        .experiment {
            padding: 0 2rem 0rem 2rem;
            background: #fff;
            max-width: 1400px;
            margin: 0 auto;
        }
        
        .experiment-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 3rem;
            position: relative;
        }
        
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: #000;
            text-transform: uppercase;
            letter-spacing: 1px;
            position: relative;
        }
        
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            bottom: -8px;
            width: 120px;
            height: 4px;
            background: #000;
            z-index: 1;
        }
        
        .view-all {
            color: #000;
            text-decoration: none;
            font-weight: 500;
            font-size: 1rem;
            transition: color 0.3s ease;
        }
        
        .view-all:hover {
            color: #ff6b35;
        }
        
        /* 第一个section - 深色背景，文字在左，视频在右 */
        .experiment-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            min-height: 500px;
        }
        
        /* 左侧文字面板 - 深色背景 */
        /* 第一个section - 深色背景，文字在左 */
.experiment .experiment-text {
    background: #2c2c2c;
    padding: 3rem;
    display: flex;
    align-items: center;
    position: relative;
}
        
        .text-content {
            max-width: 400px;
        }
        
        .experiment-label {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 1rem;
        }
        
        .experiment-title {
            font-size: 2.5rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 2rem;
        }
        
        .experiment-description {
            font-size: 1rem;
            color: #ccc;
            line-height: 1.6;
            margin-bottom: 2rem;
        }
        
        .read-more-btn {
            background: #fff;
            color: #000;
            border: none;
            padding: 1rem 2rem;
            font-size: 1rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            cursor: pointer;
            transition: all 0.3s ease;
            border-radius: 4px;
        }
        
        .read-more-btn:hover {
            background: #ff6b35;
            color: #fff;
            transform: translateY(-2px);
        }
        
        /* 右侧产品展示面板 - 深色背景 */
        .experiment-media {
            background: #1a1a1a;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .product-showcase {
            position: relative;
            width: 100%;
            height: 100%;
            min-height: 500px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .product-stack {
            position: relative;
            display: flex;
            flex-direction: column;
            gap: 20px;
            align-items: center;
        }
        
        .phone-case {
            width: 200px;
            height: 300px;
            border-radius: 20px;
            position: relative;
            transform: rotate(-15deg);
            transition: transform 0.3s ease;
        }
        
        .phone-case:hover {
            transform: rotate(-15deg) scale(1.05);
        }
        
        .case-1 {
            background: #8B4513;
            z-index: 3;
            margin-bottom: -50px;
        }
        
        .case-2 {
            background: #808080;
            z-index: 2;
            margin-bottom: -50px;
        }
        
        .case-3 {
            background: #2c2c2c;
            z-index: 1;
        }
        
        .case-back {
            position: relative;
            width: 100%;
            height: 100%;
            border-radius: 20px;
            padding: 20px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }
        
        .magnetic-ring {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: #fff;
            margin-bottom: 20px;
            position: relative;
        }
        
        .magnetic-ring::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: #000;
        }
        
        .brand-text {
            font-size: 0.7rem;
            color: #fff;
            text-align: center;
            font-weight: 500;
            letter-spacing: 0.5px;
            opacity: 0.8;
        }
        
        /* 视频播放器覆盖层 */
        .video-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        
        .product-showcase:hover .video-overlay {
            opacity: 1;
        }
        
        .video-player {
            position: relative;
            width: 80%;
            height: 60%;
            background: #000;
            border-radius: 8px;
            overflow: hidden;
        }
        
        .video-controls {
            position: absolute;
            bottom: 10px;
            left: 10px;
            right: 10px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: #fff;
        }
        
        .play-control {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .play-button {
            width: 30px;
            height: 30px;
            background: #fff;
            color: #000;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 12px;
        }
        
        .time-display {
            font-size: 0.8rem;
            color: #fff;
        }
        
        .volume-control {
            display: flex;
            align-items: center;
        }
        
        .volume-icon {
            font-size: 1.2rem;
            cursor: pointer;
        }
        
        .video-actions {
            position: absolute;
            top: 10px;
            right: 10px;
            display: flex;
            gap: 10px;
        }
        
        .fullscreen-btn,
        .close-btn {
            width: 30px;
            height: 30px;
            background: rgba(255, 255, 255, 0.2);
            color: #fff;
            border-radius: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 0.8rem;
        }
        
        .fullscreen-btn:hover,
        .close-btn:hover {
            background: rgba(255, 255, 255, 0.3);
        }
        
        /* 第二个section - 浅色背景，图片在左，文字在右 */
        .experiment-section {
            padding: 0rem 2rem 2rem 2rem;
            background: #fff;
            max-width: 1400px;
            margin: 0 auto;
        }
        
        .experiment-section .experiment-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            /* gap: 4rem; */
            align-items: center;
            min-height: 500px;
        }
        
        /* 左侧产品图片 */
        .experiment-section .experiment-media {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
            background: #f8f9fa;
        }
        
        .product-image-container {
            position: relative;
            width: 100%;
            max-width: 400px;
            height: 500px;
            background: linear-gradient(135deg, #e3f2fd 0%, #f8f9fa 100%);
            border-radius: 20px;
            display: flex;
            justify-content: center;
            align-items: center;
            overflow: hidden;
            transition: transform 0.3s ease;
        }
        
        .product-image-container:hover {
            transform: scale(1.05);
        }
        
        .phone-case-showcase {
            position: relative;
            width: 200px;
            height: 350px;
            transform: rotate(-15deg);
            transition: transform 0.3s ease;
        }
        
        .phone-case {
            width: 100%;
            height: 100%;
            background: #8B4513;
            border-radius: 25px;
            position: relative;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            border: 2px solid #654321;
        }
        
        .case-back {
            position: relative;
            width: 100%;
            height: 100%;
            padding: 30px 20px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }
        
        .magnetic-charger {
            position: relative;
            width: 80px;
            height: 80px;
            background: #c0c0c0;
            border-radius: 50%;
            margin-bottom: 30px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
        }
        
        .charger-glow {
            position: absolute;
            width: 100px;
            height: 100px;
            background: radial-gradient(circle, rgba(0, 123, 255, 0.3) 0%, transparent 70%);
            border-radius: 50%;
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0%, 100% {
                opacity: 0.5;
                transform: scale(1);
            }
            50% {
                opacity: 0.8;
                transform: scale(1.1);
            }
        }
        
        .magnetic-charger::after {
            content: '';
            position: absolute;
            width: 60px;
            height: 60px;
            background: #000;
            border-radius: 50%;
            box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.3);
        }
        
        .brand-text {
            text-align: center;
            color: #fff;
        }
        
        .brand-main {
            font-size: 1.8rem;
            font-weight: 700;
            letter-spacing: 2px;
            margin-bottom: 5px;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
        }
        
        .brand-sub {
            font-size: 0.7rem;
            font-weight: 500;
            letter-spacing: 1px;
            opacity: 0.9;
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
        }
        
        /* 右侧文字内容 - 浅色背景 */
        /* 第二个section - 浅色背景，文字在右 */
.experiment-section .experiment-text {
    background: #fff;
    padding: 3rem; /* 保持合理的间距 */
    display: flex;
    align-items: center;
    position: relative;
}
        
        .experiment-section .text-content {
            max-width: 500px;
        }
        
        .experiment-section .experiment-label {
            font-size: 1rem;
            font-weight: 600;
            color: #666;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 1rem;
        }
        
        .experiment-section .experiment-title {
            font-size: 2.5rem;
            font-weight: 700;
            color: #000;
            line-height: 1.2;
            margin-bottom: 2rem;
        }
        
        .experiment-section .experiment-description {
            margin-bottom: 2rem;
        }
        
        .experiment-section .experiment-description p {
            font-size: 1rem;
            color: #333;
            line-height: 1.6;
            margin-bottom: 1rem;
        }
        
        .experiment-section .experiment-description p:last-child {
            margin-bottom: 0;
        }
        
        .experiment-section .read-more-btn {
            background: #000;
            color: #fff;
            border: none;
            padding: 1rem 2rem;
            font-size: 1rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            cursor: pointer;
            transition: all 0.3s ease;
            border-radius: 4px;
        }
        
        .experiment-section .read-more-btn:hover {
            background: #ff6b35;
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .experiment-content,
            .experiment-section .experiment-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            
            .experiment-text,
            .experiment-section .experiment-text {
                padding: 2rem;
            }
            
            .experiment-title,
            .experiment-section .experiment-title {
                font-size: 2rem;
            }
            
            .phone-case {
                width: 150px;
                height: 225px;
            }
            
            .phone-case-showcase {
                width: 150px;
                height: 260px;
            }
            
            .magnetic-charger {
                width: 60px;
                height: 60px;
            }
            
            .magnetic-charger::after {
                width: 45px;
                height: 45px;
            }
            
            .brand-main {
                font-size: 1.4rem;
            }
            
            .brand-sub {
                font-size: 0.6rem;
            }
        }

        /* Footer */
.footer {
    background: #1a1a1a;
    color: white;
    padding: 4rem 2rem 2rem;
}

.footer-tagline {
    text-align: left;
    font-size: 1.5rem;
    margin-bottom: 3rem;
    font-weight: 300;
    max-width: 1200px;
    margin: 0 auto 3rem auto;
    padding: 0;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    font-size: 1rem;
    margin-bottom: 1rem;
    opacity: 0.7;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.footer-section ul li a:hover {
    opacity: 1;
}

.email-input {
    display: flex;
    flex-direction: column; /* 改为垂直布局 */
    gap: 1rem;
    margin-bottom: 1rem;
}

.email-input input {
    padding: 0.75rem;
    border: 1px solid #444;
    background: #333;
    color: white;
    border-radius: 4px;
    width: 100%; /* 确保输入框占满宽度 */
}

.email-input button {
    background: white;
    color: black;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    width: 100%; /* 按钮宽度与输入框一致 */
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 2rem;
    /* 修改为左对齐布局 */
    display: block;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-info {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-bottom: 1rem; /* 添加底部间距 */
}

.copyright {
    font-size: 0.9rem;
    opacity: 0.7;
    text-align: left; /* 确保左对齐 */
}

        /* Modal Styles */
        .modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 2000;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }

        .modal-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        .modal {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            max-width: 500px;
            width: 90%;
            position: relative;
            transform: scale(0.8);
            transition: transform 0.3s ease;
        }

        .modal-overlay.active .modal {
            transform: scale(1);
        }

        .modal-close {
            position: absolute;
            top: 1rem;
            right: 1rem;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: #666;
            width: 30px;
            height: 30px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .modal-close:hover {
            color: #333;
        }

        .modal-header {
            text-align: center;
            margin-bottom: 2rem;
        }

        .modal-title {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .modal-icon {
            width: 80px;
            height: 80px;
            margin: 0 auto 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
        }

        .modal-content {
            text-align: center;
            margin-bottom: 2rem;
        }

        .modal-text {
            font-size: 1rem;
            line-height: 1.6;
            color: #666;
            margin-bottom: 1.5rem;
        }

        .modal-button {
            background: #000;
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 500;
            font-size: 1rem;
            transition: background 0.3s;
            width: 100%;
        }

        .modal-button:hover {
            background: #333;
        }

        .modal-image {
            width: 100%;
            height: 200px;
            background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
            border-radius: 8px;
            margin-bottom: 1rem;
            position: relative;
            overflow: hidden;
        }

        .modal-image::before {
            content: '📱';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            font-size: 4rem;
        }

        .certification-docs {
            position: absolute;
            right: -100px;
            top: 50%;
            transform: translateY(-50%);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .cert-doc {
            width: 80px;
            height: 100px;
            background: #ff6b35;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
            font-size: 0.8rem;
            transform: rotate(15deg);
            box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
        }

        .cert-doc:nth-child(2) {
            transform: rotate(5deg);
        }

        .cert-doc:nth-child(3) {
            transform: rotate(-5deg);
        }

        .cert-line {
            position: absolute;
            right: -50px;
            top: 50%;
            width: 50px;
            height: 2px;
            background: #ff6b35;
            transform: translateY(-50%);
        }

        /* Responsive */
        @media (max-width: 768px) {
            .header {
                padding: 1rem;
            }

            .nav {
                display: none;
            }

            .hero-text {
                font-size: 1rem;
            }

            .experiment-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .footer-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 1rem;
                text-align: center;
            }

            .certification-docs {
                display: none;
            }

            .cert-line {
                display: none;
            }
        }