*{
    padding:0;
    margin: 0;
}

/* Inter 字体定义 - 静态部署 */
/* 使用固定字重文件（兼容性更好） */
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 300;
    font-display: swap;
    src: url('fonts/Inter_18pt-Light.ttf') format('truetype');
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('fonts/Inter_18pt-Regular.ttf') format('truetype');
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url('fonts/Inter_18pt-Medium.ttf') format('truetype');
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url('fonts/Inter_18pt-SemiBold.ttf') format('truetype');
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('fonts/Inter_18pt-Bold.ttf') format('truetype');
}

:root{
    --pd-color-bg: #f0f0f0;
    --pd-color-bg-light: #f5f5f5;
    --pd-color-border: #e0e0e0;
    --pd-color-text: #333;
    --pd-color-text-light: #666;
    --pd-color-text-lighter: #999;
    --pd-color-text-lightest: #ccc;
    --pd-color-text-dark: #000;
    --pd-color-text-darker: #222;
    --pd-color-text-darkest: #444;
    --pd-color-primary: #007bff;
    --pd-color-primary-light: #0056b3;
    --pd-color-secondary: #d2562c;
    --pd-img-width: 280px;
    --pa-win-width: 1380px;
    --pd-font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Helvetica, Arial, sans-serif;
}
body{
    font-family: var(--pd-font-family);
    background: var(--pd-color-bg);
    color: var(--pd-color-text);
    line-height: 1.6;
    font-size: 0.875rem;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
.pd-row{width: 100%;}
.pd-container{
    /* max-width: 1600px; */
    width: 100%;
   
    margin: 0 auto;
/*margin-left: calc( (100% - 1600px) / 2 + 350px );*/
   background-color: var(--pd-color-bg-light);
}
.pd-side-nav{
position:relative;
background-attachment: fixed;
background-color: var(--pd-color-bg-light);
width: 100%;
height: 200px;
}
.pd-item{
    width: 100%;
    background-color: var(--pd-color-bg-light);
    /* margin: 120px 0; */
    padding: 60px 0;
}
.pd-fixed-window{
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50%;
    height: 550px;
    border: 5px solid #a7a7a736;
    overflow-y: auto;
    border-radius: 10px;
    padding: 60px 0;overflow: auto;
    z-index: 99999999;
    
}
.pd-fixed-window::-webkit-scrollbar{
    width: 3px;/*滚动条宽度*/
    height: 5px;/*滚动条高度*/
    border-radius: 10px;
}
.pd-fixed-window::-webkit-scrollbar-thumb{
    background-color: rgb(182, 182, 182);/*滚动条颜色*/
    border-radius: 10px;
    cursor: pointer;
}
.pd-fixed-window::-webkit-scrollbar-track{
    border-radius: 10px;
}
.pd-fixed-window::-webkit-scrollbar-track-piece{
    background-color: rgb(233, 242, 252);
    border-radius: 2px;
}
.pd-fixed-window::-webkit-scrollbar-corner{
    border-radius: 10px;
}
.pd-fixed-window-content{display: flex;flex-direction: column;justify-content: space-around;align-items: center;flex-wrap: wrap;gap: 10px;max-width:var(--pa-win-width);width: 100%;margin: 0 auto;padding: 0 20px;box-sizing: border-box;}
.pd-item:nth-child(2n){background-color:#ffffff;}
.pd-item-title{
    font-size: 28px;
    font-weight: 300;
    font-family: var(--pd-font-family);
    text-align: center;
    margin: 1.5em 0;
    width: 100%;
    box-sizing: border-box;
    letter-spacing: -0.02em;
}
.pd-item-title h1{
    font-size: 1em;
}
.pd-item-title-desc{
    font-size: 14px;
    color: var(--pd-color-text-light);
    text-align: center;
    margin: 1.5em 0;
    width: 100%;
    box-sizing: border-box;
}

.pd-table-wrapper{
    width: 100%;
    /* overflow-x: auto; */
    -webkit-overflow-scrolling: touch;
}
.pd-table{width: 100%;min-width: 600px;height: 100%;background-color: var(--pd-color-bg-light);border-collapse: collapse;
    text-align: center;margin: 0 auto;border:1px solid var(--pd-color-border);font-size:0.875rem;}
.pd-table td{padding: 10px;border:1px solid var(--pd-color-border);white-space: normal;word-wrap: break-word;overflow-wrap: break-word;font-weight: 400;}
.pd-table tr:first-child{font-weight: 600;}
.pd-table tr:nth-child(2n-1){background-color: var(--pd-color-border);}

.pd-table-img{width: 100%;max-width: 100%;text-align: center;}
.pd-table-img img{width: 100%;max-width: 100%;height: auto;mix-blend-mode: multiply;}

.pd-3img{display: flex;}
.pd-3img-item{width: 300px;height: auto;object-fit: cover;margin: 0 auto;overflow: hidden;}
.pd-3img-item img{width: 100%;height: 100%;object-fit: cover;}




.pd-item-btn-container{width: 100%;text-align: center;margin: 1.2em 0;}
.pd-btn{display: inline-block;width:160px;height:40px;margin: 0 auto;background-color: var(--pd-color-secondary);color: var(--pd-color-bg-light);border: none;border-radius: 3px;cursor: pointer;font-size: 0.85rem;font-weight: 500;font-family: var(--pd-font-family);text-align: center;line-height: 40px;margin: 0 auto;letter-spacing: 0.01em;text-decoration: none;transition: all 0.2s ease;}
.pd-btn:hover{background-color: #c04a1f;color: var(--pd-color-bg-light);}

.pd-btn-small{width: 90px;height: 30px;line-height: 30px;}



.pd-pl{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap: 40px;margin: 60px auto;}
.pd-tuwen-text{font-size: 16px;height: 60px;font-weight: 400;font-family: var(--pd-font-family);text-align: center;line-height: 60px;margin: 0 auto;}
.pd-tuwen-img img{width: 130px;height:auto;;margin: 0 auto;mix-blend-mode: multiply;}


.pd-pl1{display:flex;justify-content:space-around;align-items:center;flex-wrap:wrap;gap: 10px;max-width:var(--pa-win-width);width: 100%;margin: 0 auto;padding: 0 20px;}
.pd-item-tuwen-container2{display: inline-block}
.pd-tuwen-img2{width:var(--pd-img-width);max-width: 100%;height: auto;background-color: var(--pd-color-bg-light);text-align: center;margin: 0 auto;}
.pd-tuwen-text2{font-size: .875rem;font-weight: 400;font-family: var(--pd-font-family);text-align: center;height: 60px;;line-height: 60px;margin: 0 auto;background-color: #297eb7;color: var(--pd-color-bg-light);}
.pd-tuwen-img2 img{width: 100%;max-width: var(--pd-img-width);height: auto;object-fit: cover;margin: 0 auto;}

/* Features 图片悬停列表样式 */
.pd-features-container{
    display: flex;
    justify-content: space-around;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 20px;
    max-width: var(--pa-win-width);
    width: 100%;
    margin: 40px auto;
    padding: 0 20px;
    box-sizing: border-box;
}
.pd-feature-item{
    flex: 0 0 calc(25% - 15px);
    max-width: calc(25% - 15px);
    min-width: 0;
}
.pd-feature-image{
    position: relative;
    width: 100%;
    overflow: hidden;
    background-color: var(--pd-color-bg-light);
    cursor: pointer;
}
.pd-feature-image img{
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}
.pd-feature-title{
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(41, 126, 183, 0.9);
    color: #fff;
    font-size: 0.875rem;
    font-weight: 400;
    text-align: center;
    padding: 12px;
    transition: all 0.3s ease;
    z-index: 2;
}
.pd-feature-list{
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(41, 126, 183, 0.95);
    color: #fff;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 3;
}
.pd-feature-list ul{
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
}
.pd-feature-list li{
    font-size: 0.9rem;
    line-height: 1.8;
    padding: 5px 0;
    position: relative;
    padding-left: 20px;
}
.pd-feature-list li::before{
    content: '•';
    position: absolute;
    left: 0;
    color: #fff;
}
.pd-feature-item:hover .pd-feature-image img{
    transform: scale(1.05);
}
.pd-feature-item:hover .pd-feature-title{
    opacity: 0;
    visibility: hidden;
}
.pd-feature-item:hover .pd-feature-list{
    opacity: 1;
    visibility: visible;
}



.pde{display:flex;flex-direction: column;justify-content:space-around;align-items:center;flex-wrap:wrap;gap: 10px;max-width:var(--pa-win-width);width: 100%;margin: 0 auto;padding: 0 20px;}
.pde-horizontal{display:flex;flex-direction: row;justify-content:space-around;align-items:flex-start;flex-wrap:wrap;gap: 30px;max-width:var(--pa-win-width);width: 100%;margin: 0 auto;padding: 0 20px;box-sizing: border-box;align-items: center;}
.pde-horizontal .pd-table-img{flex: 0 0 25%;max-width: 35%;display: flex;align-items: center;justify-content: center;min-width: 0;}
.pde-horizontal .pd-table-img img{width: auto !important;max-width: 100% !important;height: auto !important;object-fit: contain;max-height: 400px !important;}
.pde-horizontal .pd-table-wrapper{flex: 1;min-width: 0;}
.pd-fixed-window-content{display: flex;flex-direction: column;justify-content: space-around;align-items: center;flex-wrap: wrap;gap: 10px;max-width:var(--pa-win-width);margin: 0 auto;padding: 0 20px;box-sizing: border-box;}

/* FAQ样式 */
.pd-faq{
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: var(--pa-win-width);
    width: 100%;
    margin: 60px auto;
    padding: 0 20px;
    box-sizing: border-box;
}
.pd-faq-item{
    background: #fff;
    border-radius: 8px;
    padding: 24px 28px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.06);
    transition: box-shadow 0.2s ease;
}
.pd-faq-item:hover{
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.pd-faq-checkbox{
    position: absolute;
    opacity: 0;
    pointer-events: none;
    width: 0;
    height: 0;
}
.pd-faq-item-header{
    display: flex;
    align-items: center;
    gap: 16px;
    cursor: pointer;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}
.pd-faq-icon{
    width: 32px;
    height: 32px;
    min-width: 32px;
    background: #e3f2fd;
    border-radius: 50%;
    box-shadow: 0 1px 2px rgba(25, 118, 210, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.2s ease;
}
.pd-faq-icon::before{
    content: '+';
    color: #1976d2;
    font-size: 20px;
    font-weight: 300;
}
.pd-faq-item-header:hover .pd-faq-icon{
    background: #bbdefb;
    box-shadow: 0 2px 4px rgba(25, 118, 210, 0.2);
}
.pd-faq-checkbox:checked ~ .pd-faq-item-header .pd-faq-icon::before{
    content: '−';
}
.pd-faq-item-title{
    font-size: 1.05rem;
    font-weight: 400;
    color: #212121;
    line-height: 1.6;
    flex: 1;
    transition: color 0.2s ease;
}
.pd-faq-item-header:hover .pd-faq-item-title,
.pd-faq-checkbox:checked ~ .pd-faq-item-header .pd-faq-item-title{
    color: #000;
}
.pd-faq-checkbox:checked ~ .pd-faq-item-header .pd-faq-item-title{
    font-weight: 500;
}
.pd-faq-item-content{
    font-size: 0.95rem;
    line-height: 1.75;
    color: #616161;
    margin-left: 48px;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: all 0.2s ease;
}
.pd-faq-checkbox:checked ~ .pd-faq-item-content{
    max-height: 500px;
    padding: 16px 0 0 0;
    opacity: 1;
}

/* 联系我们表单样式 */
.pd-contact-wrapper{
    max-width: var(--pa-win-width);
    width: 100%;
    margin: 40px auto;
    padding: 0 20px;
    display: flex;
    gap: 40px;
    align-items: flex-center;
    justify-content: space-evenly;

}
.pd-contact-image{
    flex: 0 0 400px;
    max-width: 400px;
}
.pd-contact-image img{
    width: 100%;
    height: auto;
    display: block;
}
.pd-contact-form-container{
    flex: 1;
    max-width: 600px;
}
.pd-contact-form{
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.pd-form-row{
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}
.pd-form-group{
    display: flex;
    flex-direction: column;
}
.pd-form-group-full{
    width: 100%;
}
.pd-form-group input,
.pd-form-group textarea{
    width: 100%;
    padding: 15px 14px;
    border: 1px solid #e0e0e0;
    border-radius: 0;
    font-size: 0.875rem;
    font-family: var(--pd-font-family);
    color: #333;
    background: #fff;
    transition: all 0.2s ease;
    box-sizing: border-box;
    -webkit-appearance: none;
    appearance: none;
}
.pd-form-group input:focus,
.pd-form-group textarea:focus{
    outline: none;
    border-color: #1f150a;
}
.pd-form-group input::placeholder,
.pd-form-group textarea::placeholder{
    color: #666;
}
.pd-form-group textarea{
    resize: vertical;
    min-height: 120px;
    line-height: 1.5;
}
.pd-phone-input-wrapper{
    position: relative;
    display: flex;
    align-items: center;
}
.pd-phone-input-wrapper input{
    padding-right: 40px;
}
.pd-phone-icon{
    position: absolute;
    right: 14px;
    font-size: 18px;
    pointer-events: none;
    opacity: 0.5;
}
.pd-submit-btn{
    width: 100%;
    padding: 14px 24px;
    background: #8B4513;
    color: #fff;
    border: none;
    border-radius: 0;
    font-size: 0.9rem;
    font-weight: 500;
    font-family: var(--pd-font-family);
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 0;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
    text-align: center;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    min-height: 44px;
}
.pd-submit-btn:hover{
    background: #A0522D;
    box-shadow: 0 2px 4px rgba(0,0,0,0.15);
}
.pd-submit-btn:active{
    box-shadow: 0 1px 1px rgba(0,0,0,0.1);
    background: #654321;
}

/* 表格展开/收起功能 */
.pd-table-row-hidden {
    display: none;
}
.pd-table.is-expanded .pd-table-row-hidden {
    display: table-row;
}
.pd-table-more-container {
    text-align: center;
    margin: 20px 0;
}
.pd-table-more-btn {
    display: inline-block;
    width: 120px;
    height: 30px;
    margin: 0 auto;
    background-color: var(--pd-color-secondary);
    color: var(--pd-color-bg-light);
    border: none;
    border-radius: 3px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    font-family: var(--pd-font-family);
    text-align: center;
    line-height: 0px;
    letter-spacing: 0.01em;
    transition: all 0.2s ease;
}
.pd-table-more-btn:hover {
    background-color: #c04a1f;
    color: var(--pd-color-bg-light);
}


@media screen and (max-width: 768px){
   
}

.tw{
    max-width: var(--pa-win-width);
    width: 100%;
    padding: 60px 80px;
    display: flex;
    align-items: center;
    position: relative; /* 为产品图绝对定位做铺垫 */
    overflow: visible; /* 允许产品图溢出容器 */
    margin: 0 auto;
    box-sizing: border-box;
}
.pd-item-text-content{
    flex: 0 0 55%; /* 文字占55%宽度 */
    padding-right: 20px;
    box-sizing: border-box;
}
.pd-item-text-content p { font-size: 1.1rem;
    line-height: 1.7;
    color: #333;
    margin: 1.5em 0;
  }
  .pd-product-image{flex: 0 0 45%; /* 图片占45%宽度 */
    position: relative;text-align: center;
    box-sizing: border-box;
  }
  .pd-product-image img {
    width: 100%;
    max-width: 320px; /* 控制产品图最大宽度 */
    height: auto;
  }








/* 全局图片响应式 */
img {
    max-width: 100%;
    height: auto;
}

/* 大则大靠前（max-width） 小则小靠前（min-width）  */
@media screen and (max-width: 1880px) {/*显示小于1880px时，显示1200px*/
  .pd-container{
    width: 100%;
  }
  .pd-pl{max-width:1380px;width: 100%;justify-content: space-around;padding: 0 20px;}
}

/* 中等屏幕优化 */
@media screen and (max-width: 1200px) {
    .pd-contact-wrapper{
        gap: 35px;
        padding: 0 18px;
    }
    .pd-contact-image{
        flex: 0 0 350px;
        max-width: 350px;
    }
    .pd-contact-form-container{
        max-width: 550px;
    }
}

/* 平板设备断点 */
@media screen and (max-width: 1024px) {
    .tw{
        padding: 40px 40px;
        flex-direction: column;
        width: 100%;
    }
    .pd-item-text-content{
        flex: 1 1 100%;
        width: 100%;
        padding-right: 0;
        margin-bottom: 30px;
        box-sizing: border-box;
    }
    .pd-product-image{
        flex: 1 1 100%;
        width: 100%;
        box-sizing: border-box;
    }
    .pd-product-image img{
        width: 100%;
        max-width: 100%;
    }
    .pd-item-title{
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }
    .pd-pl1{
        padding: 0 15px;
        width: 100%;
    }
    .pde{
        padding: 0 15px;
        width: 100%;
    }
    .pde-horizontal{
        flex-direction: column;
        gap: 20px;
        padding: 0 15px;
    }
    .pde-horizontal .pd-table-img{
        flex: 1 1 100%;
        max-width: 100%;
    }
    .pde-horizontal .pd-table-wrapper{
        flex: 1 1 100%;
        width: 100%;
    }
    .pd-table-img{
        width: 100%;
    }
    .pd-table-img img{
        width: 100%;
    }
    .pd-table{
        font-size: 0.7rem;
        min-width: 0;
        table-layout: auto;
    }
    .pd-table td{
        padding: 8px 5px;
        white-space: normal;
        word-wrap: break-word;
        overflow-wrap: break-word;
        max-width: 0;
    }
    .pd-faq{
        padding: 0 15px;
        gap: 14px;
        margin: 50px auto;
    }
    .pd-faq-item{
        padding: 22px 24px;
    }
    .pd-faq-icon{
        width: 30px;
        height: 30px;
        min-width: 30px;
    }
    .pd-faq-icon::before{
        font-size: 18px;
    }
    .pd-faq-item-header{
        gap: 16px;
    }
    .pd-faq-item-title{
        font-size: 0.98rem;
    }
    .pd-faq-item-content{
        font-size: 0.9rem;
        margin-left: 48px;
    }
    .pd-faq-checkbox:checked ~ .pd-faq-item-content{
        padding: 14px 0 0 0;
    }
    .pd-contact-wrapper{
        flex-direction: column;
        gap: 30px;
        padding: 0 15px;
    }
    .pd-contact-image{
        flex: 1 1 100%;
        max-width: 100%;
    }
    .pd-contact-form-container{
        flex: 1 1 100%;
        max-width: 100%;
        margin: 0;
    }
    .pd-contact-form{
        gap: 16px;
    }
    .pd-form-row{
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .pd-form-group input,
    .pd-form-group textarea{
        padding: 11px 14px;
        font-size: 0.85rem;
    }
    .pd-form-group textarea{
        min-height: 100px;
    }
    .pd-submit-btn{
        padding: 13px 22px;
        font-size: 0.88rem;
        text-align: center;
    }
    .pd-phone-icon{
        right: 12px;
        font-size: 16px;
    }
}

/* 移动设备断点 */
@media screen and (max-width: 768px) {
    .pd-side-nav{
        height: 100px;
    }
    .pd-container{
        width: 100%;
    }
    .pd-item{
        margin: 20px 0;
        padding: 30px 0;
        width: 100%;
        box-sizing: border-box;
    }
    .pd-item-title{
        font-size: 24px;
        margin: 1em 0;
        width: 100%;
        padding: 0;
        box-sizing: border-box;
    }
    .pd-item-title-desc{
        font-size: 14px;
        padding: 0 20px;
        width: 100%;
        box-sizing: border-box;
    }
    .tw{
        padding: 30px 20px;
        width: 100%;
    }
    .pd-item-text-content{
        width: 100%;
        padding: 0;
    }
    .pd-item-text-content p{
        font-size: 1rem;
        padding: 0 20px;
        width: 100%;
        box-sizing: border-box;
    }
    .pd-product-image{
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }
    .pd-product-image img{
        width: 100%;
        max-width: 100%;
    }
    .pd-pl{
        width:100%;
        justify-content: space-around;
        padding: 0 15px;
        gap: 20px;
        box-sizing: border-box;
    }
    .pd-pl1{
        width:100%;
        flex-wrap: wrap;
        padding: 0;
        gap: 15px;
        box-sizing: border-box;
    }
    .pde{
        width:100%;
        flex-wrap: wrap;
        padding: 0;
        gap: 10px;
        box-sizing: border-box;
    }
    .pde-horizontal{
        flex-direction: column;
        gap: 15px;
        padding: 0 10px;
    }
    .pde-horizontal .pd-table-img{
        flex: 1 1 100%;
        max-width: 100%;
    }
    .pde-horizontal .pd-table-wrapper{
        flex: 1 1 100%;
        width: 100%;
    }
    .pd-table-img{
        width: 100%;
        padding: 0;
        margin: 0;
    }
    .pd-table-img img{
        width: 100%;
        max-width: 100%;
    }
    .pd-table-wrapper{
        width: 100%;
        margin: 0;
        padding: 0 10px;
        box-sizing: border-box;
    }
    .pd-table{
        font-size: 0.65rem;
        min-width: 0;
        width: 100%;
        table-layout: auto;
    }
    .pd-table td{
        white-space: normal;
        word-wrap: break-word;
        overflow-wrap: break-word;
        max-width: 0;
    }
    .pd-table td{
        padding: 6px 4px;
    }
    .pd-item-tuwen-container{
        width: 100%;
        box-sizing: border-box;
    }
    .pd-features-container{
        gap: 15px;
        padding: 0 15px;
        margin: 30px auto;
    }
    .pd-feature-item{
        flex: 0 0 calc(50% - 7.5px);
        max-width: calc(50% - 7.5px);
    }
    .pd-tuwen-img2{
        width: 100%;
        max-width: 100%;
    }
    .pd-tuwen-img2 img{
        width: 100%;
        max-width: 100%;
    }
    .pd-tuwen-text2{
        width: 100%;
    }
    .pd-features-container{
        gap: 15px;
        padding: 0 15px;
        margin: 30px auto;
    }
    .pd-feature-item{
        flex: 0 0 calc(50% - 7.5px);
        max-width: calc(50% - 7.5px);
    }
    .pd-faq{
        padding: 0 10px;
        gap: 12px;
        margin: 40px auto;
    }
    .pd-faq-item{
        padding: 20px 22px;
    }
    .pd-faq-icon{
        width: 28px;
        height: 28px;
        min-width: 28px;
    }
    .pd-faq-icon::before{
        font-size: 16px;
    }
    .pd-faq-item-header{
        gap: 14px;
    }
    .pd-faq-item-title{
        font-size: 0.95rem;
    }
    .pd-faq-item-content{
        font-size: 0.88rem;
        margin-left: 46px;
    }
    .pd-faq-checkbox:checked ~ .pd-faq-item-content{
        padding: 12px 0 0 0;
    }
    .pd-btn{
        width: 140px;
        height: 36px;
        font-size: 0.8rem;
        line-height: 36px;
    }
    .pd-contact-wrapper{
        gap: 25px;
        padding: 0 10px;
        margin: 30px auto;
    }
    .pd-contact-image{
        max-width: 100%;
    }
    .pd-contact-form-container{
        width: 100%;
        max-width: 100%;
    }
    .pd-contact-form{
        gap: 14px;
    }
    .pd-form-row{
        gap: 14px;
    }
    .pd-form-group input,
    .pd-form-group textarea{
        padding: 11px 13px;
        font-size: 0.84rem;
    }
    .pd-form-group textarea{
        min-height: 90px;
    }
    .pd-submit-btn{
        padding: 12px 20px;
        font-size: 0.87rem;
        text-align: center;
    }
    .pd-phone-input-wrapper input{
        padding-right: 38px;
    }
    .pd-phone-icon{
        right: 12px;
        font-size: 16px;
    }
}

/* 小屏移动设备 */
@media screen and (max-width: 480px) {
    .pd-item-title{
        font-size: 20px;
        width: 100%;
        padding: 0;
    }
    .pd-item-title-desc{
        font-size: 13px;
        width: 100%;
        padding: 0 15px;
    }
    .tw{
        padding: 20px 15px;
        width: 100%;
    }
    .pd-item-text-content{
        width: 100%;
        padding: 0;
    }
    .pd-item-text-content p{
        font-size: 0.9rem;
        width: 100%;
        padding: 0 15px;
    }
    .pd-product-image{
        width: 100%;
        padding: 0 15px;
    }
    .pd-product-image img{
        width: 100%;
        max-width: 100%;
    }
    .pd-pl{
        gap: 15px;
        padding: 0 10px;
    }
    .pd-pl1{
        gap: 10px;
        padding: 0;
    }
    .pde{
        padding: 0;
    }
    .pde-horizontal{
        flex-direction: column;
        gap: 12px;
        padding: 0;
    }
    .pde-horizontal .pd-table-img{
        flex: 1 1 100%;
        max-width: 100%;
    }
    .pde-horizontal .pd-table-wrapper{
        flex: 1 1 100%;
        width: 100%;
    }
    .pd-table-img{
        width: 100%;
    }
    .pd-table-img img{
        width: 100%;
    }
    .pd-table-wrapper{
        padding: 0 5px;
        box-sizing: border-box;
    }
    .pd-table{
        font-size: 0.6rem;
        min-width: 0;
        width: 100%;
        table-layout: auto;
    }
    .pd-table td{
        padding: 5px 3px;
        font-size: 0.75rem;
        white-space: normal;
        word-wrap: break-word;
        overflow-wrap: break-word;
        max-width: 0;
    }
 
    .pd-item-tuwen-container{
        width: 100%;
    }
    .pd-tuwen-img2{
        width: 100%;
    }
    .pd-tuwen-img2 img{
        width: 100%;
    }
    .pd-faq{
        padding: 0 8px;
        gap: 10px;
        margin: 30px auto;
    }
    .pd-faq-item{
        padding: 18px 20px;
    }
    .pd-faq-icon{
        width: 28px;
        height: 28px;
        min-width: 28px;
    }
    .pd-faq-icon::before{
        font-size: 16px;
    }
    .pd-faq-item-header{
        gap: 12px;
    }
    .pd-faq-item-title{
        font-size: 0.92rem;
    }
    .pd-faq-item-content{
        font-size: 0.85rem;
        margin-left: 40px;
    }
    .pd-faq-checkbox:checked ~ .pd-faq-item-content{
        padding: 10px 0 0 0;
    }
    .pd-btn{
        width: 120px;
        height: 32px;
        font-size: 0.75rem;
        line-height: 32px;
    }
    .pd-btn-small{width: 100%;}
    .pd-contact-wrapper{
        gap: 20px;
        padding: 0 8px;
        margin: 25px auto;
        box-sizing: border-box;
    }
    .pd-contact-image{
        max-width: 100%;
    }
    .pd-contact-form-container{
        width: 100%;
        padding: 0;
        margin: 0;
    }
    .pd-contact-form{
        gap: 12px;
    }
    .pd-form-row{
        gap: 12px;
    }
    .pd-form-group input,
    .pd-form-group textarea{
        padding: 10px 12px;
        font-size: 0.83rem;
        -webkit-appearance: none;
        appearance: none;
    }
    .pd-form-group textarea{
        min-height: 80px;
    }
    .pd-submit-btn{
        padding: 12px 18px;
        font-size: 0.85rem;
        text-align: center;
        width: 100%;
    }
    .pd-phone-input-wrapper input{
        padding-right: 36px;
    }
    .pd-phone-icon{
        right: 11px;
        font-size: 15px;
    }
}