* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft Yahei", sans-serif;
}
body {
    background: #fff;
}
.gaishu,.tedian,.shipai{background-color: #f5f5f5;overflow: auto;clear: both;}
/* 顶部banner */
.top-banner {
    width: 100%;
    margin:0 auto;
}
.top-banner img{width: 100%;}

.top-banner h1 {
    text-align: center;
    color: #ff2222;
    font-weight: bold;
    display: none;
}

/* 通用模块标题 */
.module-title {
    text-align: center;
    font-size: 30px;
    color: #dd2222;
    padding: 30px 0;
    font-weight: bold;
}
/* 视频区域 */
.video{
    margin:0 auto;
    overflow: hidden;
}
.video-box {
    margin: 0 auto 30px;
    width: 100%;
    max-width: 1400px;
    background: #000;
    color: #999;
}
.video-box video {
    display: block;
    margin: 0 auto;
    height: 600px;
}

/* 概述模块 */
.overview-wrap {
    margin: 0 auto 30px;
    width: 100%;
    max-width: 1400px;
    display: flex;
    padding: 0 30px 10px;
    gap: 30px;
    align-items: center;
    background-color: #fff;
}
.overview-text {
    flex: 1;
    font-size: 16px;
    line-height: 1.8;
    color: #333;
}
.overview-img {
    flex: 1;
    background: #0066cc;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    width:45%;
}
.overview-img img{
    width: 100%;
    max-width: 635px;
}

/* 细节展示 6宫格 */
.detail-grid {
    width: 100;
    max-width: 1400px;
    margin: 0 auto 40px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}
.detail-item {
    border: 1px solid #eee;
    padding: 16px 18px;
    background-color: #f5f5f5;
    border-radius: 10px;
}
.detail-img {
    background: #0066cc;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.detail-img img{
    width: 100%;
}
.detail-name {
    text-align: center;
    font-size: 26px;
    color: #dd2222;
    font-weight: bold;
    margin-bottom: 20px;
}
.detail-desc {
    font-size: 12px;
    color: #666;
    text-align: center;
    line-height: 1.5;
    padding-bottom: 26px;
}
/* 设备特点 6格 */
.feature-grid {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto 30px;
    padding: 30px 10px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    background-color: #fff;
}
.feature-item {
    padding: 45px 30px;
    border: 1px solid #eee;
}
.feature-grid .dajiaodu{
    background:#f9f9f9 url(images/dajiaodu.webp) no-repeat right top;
}
.feature-grid .tdbg2{
    background:#f9f9f9  url(images/tedianbg2.webp) no-repeat right top;
}
.feature-grid .tdbg3{
    background:#f9f9f9  url(images/tedianbg3.webp) no-repeat right top;
}
.feature-grid .tdbg4{
    background:#f9f9f9  url(images/tedianbg4.webp) no-repeat right top;
}        
.feature-grid .tdbg5{
    background:#f9f9f9  url(images/tedianbg5.webp) no-repeat right top;
}
.feature-grid .tdbg6{
    background:#f9f9f9 url(images/tedianbg6.webp) no-repeat right top;
}
.feature-title {
    color: #dd2222;
    font-weight: bold;
    font-size: 26px;
    padding-bottom: 22px;
    text-align: center;
    background: url("images/tedianbg.webp") no-repeat center bottom;
}
.feature-text {
    font-size: 16px;
    color: #555;
    line-height: 1.6;
    text-align: center;
    padding: 18px 0;
}
/* 参数表格 */
.param-table-wrap {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto 30px;
}
table {
    width: 100%;
    border-collapse: collapse;
}
table thead tr {
    background: #dd2222;
    color: #fff;
}
table th, table td {
    border: 1px solid #ddd;
    padding: 10px;
    text-align: center;
    font-size: 13px;
}
table tbody tr:nth-child(odd) {
    background: #f9f9f9;
}
.table-tip {
    font-size: 11px;
    color: #888;
    text-align: right;
    margin-top: 6px;
}
/* 实拍图集 */
.gallery-wrap {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto 30px;
}
.gallery-big {
    width: 100%;
    background: #eee;
    margin-bottom: 15px;
}
.gallery-big img{
    width: 100%;
    border-radius: 16px;
}
@media (max-width: 599px) {
    .module-title {
        font-size: 20px;
        padding: 20px 0;
    }
    .detail-name {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 16px;
    }
    .feature-title {
    font-size: 18px;
    padding-bottom: 16px;

    }
    .overview-text {
    font-size: 14px;
    line-height: 1.6;
    }
    .feature-text {
    font-size: 14px;
    line-height: 1.4;
    padding: 14px 0;
    }
}