@charset "utf-8";
* {
    margin: 0;
    padding: 0;
    list-style-type: none;
    box-sizing: border-box;
}
a, img { border: 0; }
a, a:hover { color: #333; text-decoration: none; }

/* 通用响应式设定 */
body {
    font-family: Verdana, Geneva, sans-serif;
}
.background {
    max-width: 1000px;
    width: 100%;
    margin: 0 auto;
    padding: 0 15px;
}

img { max-width: 100%; height: auto; }

/* ===== 导航栏样式（所有页面统一，Flex布局） ===== */
.nav-wrap {
    display: flex;
    align-items: center;
    width: 100%;
    margin: 0 0 0 0;
}
.a1 {
    width: 80px;
    flex-shrink: 0;
    margin-right: 10px;
}
.a1 img {
    display: block;
    width: 100%;
    height: auto;
}
.a2 {
    flex: 1;                /* 占据剩余宽度 */
    min-width: 0;           /* 防止flex溢出 */
}
.a3 {
    background-color: #F39800;
    width: 100%;
}
.a3 ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    list-style: none;
    background-color: #F39800;
    margin: 0;
    padding: 0;
}
.a3 li a {
    display: block;
    color: white;
    padding: 15px 20px;
    text-decoration: none;
    font-size: 16px;
    white-space: nowrap;
}
.a3 li a:hover {
    color: #F39800;
    background-color: #F0F0F0;
    border-top: 2px solid #F39800;
    padding-top: 13px;
}

/* 移动端导航调整（保留少量留白） */
@media (max-width: 700px) {
    .nav-wrap {
        flex-wrap: wrap;
        justify-content: center;
        margin: 5px 0;
    }
    .a1 {
        margin: 0 auto 5px;
    }
    .a2 {
        width: 100%;
        flex: auto;
    }
    .a3 ul {
        justify-content: center;
    }
    .a3 li a {
        padding: 12px 15px;
        font-size: 14px;
    }
}

/* 轮播图样式（紧接导航） */
.box {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;           /* 取消顶部外边距，与导航无缝衔接 */
    overflow: hidden;
    position: relative;
    height: auto;
    min-height: 200px;
    clear: both;
}
.box-1 {
    position: absolute;
    width: 100%;
    margin-top: 0;
}
.box-1 ul {
    position: relative;
    width: 100%;
}
.box-1 ul li {
    width: 100%;
    height: auto;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    transition: opacity 0.5s;
    display: block !important;
}
.box-1 ul li:first-child {
    opacity: 1;
    position: relative;
}
.box-1 ul li img {
    width: 100%;
    height: auto;
    display: block;
}
.box-1 ul li h2 {
    position: absolute;
    left: 0;
    bottom: 10px;
    width: 100%;
    background: rgba(125,125,120,.4);
    color: #fff;
    padding: 5px 0;
    text-indent: 1em;
    font-size: clamp(12px, 4vw, 15px);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.box-2 {
    position: absolute;
    right: 10px;
    bottom: 14px;
    z-index: 10;
}
.box-2 ul li {
    float: left;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(0,0,0,0.5);
    margin: 0 5px;
    cursor: pointer;
    list-style: none;
    text-indent: -999px;
    overflow: hidden;
}
.box-2 ul .on {
    background: rgba(255,255,255,0.6);
}
.box-3 span {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: #fff;
    background: rgba(125,125,120,.3);
    width: 40px;
    height: 60px;
    line-height: 60px;
    font-size: 40px;
    text-align: center;
    cursor: pointer;
    z-index: 10;
}
.box-3 .prev { left: 5px; }
.box-3 .next { right: 5px; }
@media (max-width:600px) {
    .box-3 span { width:30px; height:45px; line-height:45px; font-size:30px; }
}

/* 首页about区域并排 */
.row-about {
    display: flex;
    flex-wrap: wrap;
    gap: 2%;
    margin-top: 30px;
}
.a5 {
    flex: 1 1 38%;
    background-color: #F4F4F4;
    padding: 15px;
    box-sizing: border-box;
}
.a6 {
    flex: 1 1 58%;
    background-color: #F4F4F4;
    overflow: hidden;
}
.a6 img {
    width: 100%;
    height: auto;
    display: block;
}
@media (max-width:700px) {
    .row-about { flex-direction: column; }
    .a5, .a6 { width: 100%; flex: auto; }
}

/* 产品区域：每行3个，居中 */
.a7 {
    clear: both;
    background-color: #F4F4F4;
    margin-top: 30px;
    padding: 15px 0;
}
.a12 h1 { margin-left: 15px; }
.product-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px 2%;
    padding: 0 10px;
}
.a8 {
    width: calc(31.333% - 2%);
    min-width: 180px;
    text-align: center;
    box-sizing: border-box;
}
.a8 img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
}
.a8 p {
    font-size: 13px;
    margin-top: 8px;
    line-height: 1.4;
}
@media (max-width: 700px) {
    .a8 { width: calc(48% - 2%); }
}
@media (max-width: 450px) {
    .a8 { width: 100%; }
}

/* 联系区域 */
#contact {
    width: 100%;
    background-color: #F39800;
    padding: 20px 10px;
    text-align: center;
    margin-top: 30px;
    box-sizing: border-box;
}
#contact p {
    color: #fff;
    font-size: 14px;
    line-height: 1.6;
}

/* 版权 */
.a11 {
    width: 100%;
    text-align: center;
    padding: 15px 0;
}
.a11 p {
    font-size: 12px;
    color: #999;
}

/* 标题样式 */
h1 {
    font-size: 18px;
    color: #F39800;
    margin: 0 0 10px 10px;
}
hr {
    border: none;
    border-top: 1px solid #F39800;
    margin: 0 10px;
}

/* ---------- About Us 页面图片横向排列 ---------- */
.about-gallery {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin: 20px 0;
    justify-content: flex-start;
}
.about-gallery .ab_us1,
.about-gallery .ab_us2,
.about-gallery .ab_us3,
.about-gallery .ab_us4 {
    float: none;      /* 覆盖原有浮动 */
    margin: 0;         /* 由gap控制间距 */
    flex: 0 0 auto;
}
/* 原有图片容器尺寸（保留并配合flex） */
.ab_us1 { width: 292px; height: 200px; overflow: hidden; }
.ab_us2 { width: 460px; height: 300px; overflow: hidden; }
.ab_us3, .ab_us4 { width: auto; height: 300px; overflow: hidden; }
.ab_us3 img, .ab_us4 img { height: 100%; width: auto; } /* 保持比例 */
@media (max-width: 700px) {
    .about-gallery { justify-content: center; }
    .ab_us1, .ab_us2, .ab_us3, .ab_us4 {
        width: 100%;
        height: auto;
        max-width: 460px;
        margin: 0 auto;
    }
    .ab_us3 img, .ab_us4 img { width: 100%; height: auto; }
}

/* ---------- 产品页专用（保留） ---------- */
.Div1 {
    width: 100%;
    max-width: 1000px;
    margin: 10px auto;
    border: 1px solid #d0d0d0;
    overflow: hidden;
    position: relative;
}
.Div1_main {
    padding: 14px 0 7px;
    width: 100%;
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
}
.Div1_main div {
    display: inline-block;
    white-space: normal;
    vertical-align: top;
}
.Div1_main div span {
    display: inline-block;
    width: 218px;
    margin: 0 5px;
    background: #f8f8f8;
    padding: 0 5px 10px;
    vertical-align: top;
}
.Div1_main_a1 img {
    width: 210px;
    height: 130px;
    object-fit: cover;
}
.Div1 .Div1_prev1, .Div1 .Div1_next1 {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    z-index: 2;
}
.Div1 .Div1_prev1 { left: 5px; }
.Div1 .Div1_next1 { right: 5px; }
@media (max-width:700px) {
    .Div1_main div span { width: 160px; }
    .Div1_main_a1 img { width: 150px; height: 100px; }
}

/* 分页样式 */
.tcdPageCode {
    padding: 15px 20px;
    text-align: center;
    color: #ccc;
}
.tcdPageCode a {
    display: inline-block;
    color: #428bca;
    height: 25px;
    line-height: 25px;
    padding: 0 10px;
    border: 1px solid #ddd;
    margin: 0 2px;
    border-radius: 4px;
    vertical-align: middle;
}
.tcdPageCode span.current {
    display: inline-block;
    height: 25px;
    line-height: 25px;
    padding: 0 10px;
    margin: 0 2px;
    color: #fff;
    background-color: #428bca;
    border: 1px solid #428bca;
    border-radius: 4px;
    vertical-align: middle;
}