@charset "utf-8";
/* ==========================================================
   涛勃泵业 官网静态模板 全局样式
   目录：wwwroot/html
   说明：html 标签带 class="dev" 时显示图位提示，上线前移除即可
   ========================================================== */
:root {
    --navy: #0b2d5e; /* 头部深蓝 */
    --blue: #1a4b8f; /* 主蓝 */
    --blue-deep: #0f3d7c; /* 深蓝 */
    --orange: #f08300; /* 强调橙 */
    --ink: #1c2b3a; /* 标题黑 */
    --text: #333; /* 正文 */
    --muted: #8a94a6; /* 弱文字 */
    --line: #e5eaf2; /* 描边 */
    --bg-light: #f5f7fa; /* 浅底 */
    --header-h: 90px;
    --page-pad: calc((100vw - min(1400px,92vw)) / 2); /* 页面容器左右留白，供全宽下拉对齐 */
}

/* 数字专用字体（可变字体） */
@font-face {
    font-family: "TCloudNumberVF";
    src: url("../../iconfont/TCloudNumberVF.ttf") format("truetype");
    font-weight: 100 900;
    font-display: swap;
}

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

html {
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: "Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;
    font-size: 15px;
    line-height: 1.7;
    color: var(--text);
    background: #fff;
}

a {
    color: inherit;
    text-decoration: none;
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
    border: 0;
}

button, input, textarea {
    font-family: inherit;
    font-size: inherit;
    outline: none;
}

button {
    cursor: pointer;
    border: 0;
    background: none;
    color: inherit;
}

.container {
    width: min(1400px,92%);
    margin: 0 auto;
}

/* ---------- 图位（缺图时显示底色 + 路径提示） ---------- */
.img-slot {
    position: relative;
/*    background-color: #dfe6ee;*/
    background-size: cover;
    background-position: center;
}
/*html.dev .img-slot::after{content:attr(data-slot);position:absolute;right:8px;bottom:8px;z-index:6;pointer-events:none;font-size:12px;line-height:1.6;color:#fff;background:rgba(0,0,0,.45);padding:2px 8px;border-radius:2px;letter-spacing:0;}
*/
/* ---------- 公共头部 ---------- */
/* 默认即白底深字：滚动后、首页悬停时都保持该态，不再切深蓝 */
.site-header {
    position: sticky;
    top: 0;
    z-index: 200;
    background: #fff;
    color: var(--ink);
    box-shadow: 0 2px 12px rgba(15,45,90,.1);
    transition: background .3s ease,box-shadow .3s ease;
}
/* 首页：导航固定在 banner 正上方；仅“未滚动且鼠标未经过”时透明浅字，一旦滚动或悬停即回白底深字 */
body[data-page="home"] .site-header {
    position: fixed;
    left: 0;
    right: 0;
}

    body[data-page="home"] .site-header:not(.scrolled):not(:hover) {
        background: transparent;
        color: #fff;
        box-shadow: none;
    }

        body[data-page="home"] .site-header:not(.scrolled):not(:hover) .main-nav a {
            color: #d5e0f2;
        }

            body[data-page="home"] .site-header:not(.scrolled):not(:hover) .main-nav a:hover,
            body[data-page="home"] .site-header:not(.scrolled):not(:hover) .main-nav a.active {
                color: #fff;
            }

        body[data-page="home"] .site-header:not(.scrolled):not(:hover) .logo-en {
            color: #a9bcda;
        }

        body[data-page="home"] .site-header:not(.scrolled):not(:hover) .lang {
            border-color: rgba(255,255,255,.45);
        }

            body[data-page="home"] .site-header:not(.scrolled):not(:hover) .lang button {
                color: #c6d3e8;
            }

        body[data-page="home"] .site-header:not(.scrolled):not(:hover) .nav-toggle {
            color: #fff;
        }

.header-in {
    display: flex;
    align-items: center;
    height: var(--header-h);
}
/* logo 改为整张图片（img/logo.png），不再用文字拼 */
.logo {
    display: flex;
    align-items: center;
    position: relative;
}

    .logo img {
        display: block;
        height: 56px;
        width: auto;
        /* 与 .site-header 背景同曲线同 300ms：logo 跟背景同步渐变，不再瞬切发闪；
           visibility 参与过渡后，淡出期间保持可见、结束才隐藏 */
        transition: opacity .3s ease, visibility .3s;
    }

/* 首页双 logo：透明导航态（未滚动且鼠标未经过）叠显浅色版 logofff.png；
   深色版用 visibility 隐藏以保留占位宽度、浅色版绝对定位叠放，两图宽高比不同切换时导航也不横向跳动 */
.logo-light {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0;
    visibility: hidden;
}

body[data-page="home"] .site-header:not(.scrolled):not(:hover) .logo-dark {
    opacity: 0;
    visibility: hidden;
}

body[data-page="home"] .site-header:not(.scrolled):not(:hover) .logo-light {
    opacity: 1;
    visibility: visible;
}

.logo-cn {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 5px;
}

.logo-en {
    font-size: 10px;
    letter-spacing: 3px;
    color: #8a97ab;
}

.main-nav {
    margin-left: auto;
}

    .main-nav ul {
        display: flex;
        gap: 2px;
    }

    .main-nav a {
        display: block;
        padding: 0 15px;
        line-height: var(--header-h);
        font-size: 15px;
        color: #3c4a5c;
        position: relative;
        white-space: nowrap;
    }

        .main-nav a:hover, .main-nav a.active {
            color: var(--blue);
        }

            .main-nav a.active::after {
                content: "";
                position: absolute;
                left: 15px;
                right: 15px;
                bottom: calc(50% - 15px);
                height: 3px;
                border-radius: 1.5px;
                background: var(--orange);
            }

.lang {
    display: flex;
    border: 1px solid rgba(28,43,58,.4);
    border-radius: 13px;
    overflow: hidden;
    margin-left: 14px;
    flex: none;
}

    .lang a {
        display:block;
        padding: 1px 10px;
        font-size: 12px;
        color: #57606d;
        line-height: 18px;
    }

        .lang a.on {
            background: var(--blue);
            color: #fff;
        }

.nav-toggle {
    display: none;
    margin-left: 14px;
    font-size: 24px;
    line-height: 1;
    color: var(--ink);
}
    /* 菜单展开时：☰ 换为 ✕（兄弟选择器，无需 JS 换图标） */
    .nav-toggle .nt-close {
        display: none;
    }

.main-nav.open ~ .nav-toggle .nt-open {
    display: none;
}

.main-nav.open ~ .nav-toggle .nt-close {
    display: inline;
}

/* ---------- 产品中心 mega 下拉（电脑端鼠标经过展开；触发文字不带链接、无倒三角） ---------- */
.has-drop > a {
    cursor: pointer;
}

.has-drop:hover > a, .has-drop.open > a {
    color: var(--blue);
}

.nav-drop {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: var(--header-h);
    background: #fff;
    color: var(--text);
    border-top: 1px solid var(--line);
    box-shadow: 0 22px 44px rgba(9,28,58,.22);
    z-index: 190;
}
/* 鼠标经过展开弹出层；.open 由 js 维持一小段延迟，避免斜向移入途中误关（移动端在媒体查询里强制隐藏） */
.has-drop:hover .nav-drop, .has-drop.open .nav-drop {
    display: block;
}

.nd-in {
    display: flex;
    align-items: stretch;
}

.nd-products {
    flex: 1;
    min-width: 0;
    padding: 26px 40px 28px var(--page-pad);
}

.nd-group {
    display: none;
    grid-template-columns: repeat(4,1fr);
    gap: 14px;
}

    .nd-group.on {
        display: grid;
    }

.nd-card {
    display: block;
    border: 1px solid var(--line);
    background: #fff;
    padding: 10px 8px;
    text-align: center;
    transition: .25s;
}

    .nd-card:hover {
        border-color: var(--blue);
        box-shadow: 0 8px 18px rgba(26,75,143,.14);
        transform: translateY(-3px);
    }

    /* 缩略图改用 <img>（asp:Image）承载，不再走 data-slot 背景图；.img-slot 底色保留作缺图占位 */
    .nd-card .img-slot {
        height: 92px;
    }

        /* object-fit:contain 等价原 background-size:contain，产品图完整显示不裁切 */
        .nd-card .img-slot img {
            width: 100%;
            height: 100%;
            object-fit: contain;
            display: block;
        }

.nd-card p {
    font-size: 12px;
    color: #3c4a5c;
    line-height: 1.5;
    margin-top: 8px;
    height: 36px;
    overflow: hidden;
}

.nd-cats {
    width: clamp(220px,24vw,360px);
    flex: none;
    background: var(--navy);
    display: flex;
    flex-direction: column;
}

    .nd-cats a {
        position: relative;
        display: block;
        padding: 13px 40px;
        text-align: left;
        font-size: 14px;
        line-height: 1.4; /* 覆盖 .main-nav a 继承的 line-height:var(--header-h)，否则每项被撑到页头高 */
        letter-spacing: 2px;
        color: #d5e0f2;
        text-decoration: none;
        border-bottom: 1px solid rgba(255,255,255,.08);
        transition: .25s;
    }

        .nd-cats a:hover {
            color: #fff;
            background: rgba(255,255,255,.06);
        }

        .nd-cats a.on {
            background: var(--orange);
            color: #fff;
        }
            /* 当前分类左缘的白色三角箭头：top/bottom 撑满、clip-path 裁三角，高度始终与按钮一致 */
            .nd-cats a.on::before {
                content: "";
                position: absolute;
                left: 0;
                top: 0;
                bottom: 0;
                width: 23px;
                background: #fff;
                clip-path: polygon(0 0,100% 50%,0 100%);
            }

/* ---------- 公共页脚 ---------- */
.site-footer {
    background: #23262c;
    color: #c3c9d3;
}

.footer-top {
    display: flex;
    gap: 50px;
    padding: 52px 0 42px;
    flex-wrap: wrap;
}

.ft-contact {
    flex: 1;
    min-width: 260px;
}

    .ft-contact h3 {
        color: #fff;
        font-size: 26px;
        font-weight:normal;
    }

.ft-tel {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #fff !important;
    font-size: 34px !important;
    font-weight: 700;
    margin-bottom: 20px !important;
    font-family: "TCloudNumberVF","Microsoft YaHei",Arial,sans-serif;
}

    .ft-tel i {
        flex: none;
        width: 26px;
        height: 26px;
        border-radius: 50%;
        border: 1px solid #6b7280;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .ft-tel svg {
        width: 16px;
        height: 16px;
        fill: #fff;
    }

.ft-contact p {
    font-size: 14px;
    color: #FFF;
    margin: 3px 0;
}

    .ft-contact p b {
        color: #FFF;
        font-weight: 400;
    }

.ft-form {
    flex: 1.35;
    min-width: 300px;
}

.ft-row {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

    .ft-row input {
        flex: 1;
        min-width: 110px;
        height: 38px;
        border: 1px solid #3a3f47;
        background: #2b2f36;
        color: #ddd;
        padding: 0 12px;
        font-size: 13px;
        border-radius:6px;
    }

.ft-form textarea {
    display: block;
    width: 100%;
    height: 96px;
    border: 1px solid #3a3f47;
    background: #2b2f36;
    color: #ddd;
    padding: 10px 12px;
    font-size: 13px;
    resize: vertical;
    border-radius: 6px;
}

    .ft-form input::placeholder, .ft-form textarea::placeholder {
        color: #7d838e;
    }

.ft-btns {
    margin-top: 14px;
    display: flex;
    gap: 12px;
}

.btn-submit {
    display:block;
    margin:0px;
    padding:0px;
    border:0px;
    padding: 7px 26px;
    font-size: 14px;
    letter-spacing: 3px;
    color: #fff;
    border-radius: 6px;
    background: var(--orange);
    cursor:pointer;
}

.btn-reset {
    cursor: pointer;
    padding: 7px 26px;
    font-size: 14px;
    letter-spacing: 3px;
    color: #fff;
    border-radius: 6px;
    background: var(--blue);
}

.footer-nav {
    border-top: 1px solid #34383f;
    padding: 18px 0 10px;
    display: flex;
    justify-content: center;
    gap: 28px;
    flex-wrap: wrap;
    font-size: 13px;
    color: #9aa1ad;
}
    .footer-nav a{
        color:#FFF!important;
    }
    .footer-nav a:hover {
        color: #fff;
    }

.copyright {
    text-align: center;
    font-size: 12px;
    color: #FFF;
    padding: 4px 0 24px;
}

/* ---------- 首页：视频横幅（封面图先展示，视频淡入覆盖） ---------- */
.hero {
    position: relative;
    height: clamp(360px,42vw,680px);
    overflow: hidden;
    background: var(--navy);
}

.hero-media {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.hero-cover,
.hero-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-video {
    opacity: 0;
    transition: opacity .8s ease;
}

    .hero-video.on {
        opacity: 1;
    }

.hero-mask {
    position: absolute;
    inset: 0;
    z-index: 2;
    background: linear-gradient(90deg,rgba(5,18,42,.78),rgba(5,18,42,.35) 55%,rgba(5,18,42,.12));
}

.hero-txt {
    position: relative;
    z-index: 3;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: #fff;
    width: min(1400px,92%);
    margin: 0 auto;
}

    .hero-txt h2 {
        font-size: clamp(26px,3.6vw,48px);
        font-weight: 700;
        letter-spacing: 6px;
        text-shadow: 0 2px 12px rgba(0,0,0,.4);
    }

    .hero-txt p {
        margin-top: 14px;
        font-size: clamp(13px,1.2vw,17px);
        letter-spacing: 3px;
        color: #e2eaf7;
    }

/* ---------- 首页：选型搜索条（布局参照子页 .page-bar：蓝块通栏铺到屏幕左缘、文字用 --page-pad 对齐容器，右侧内容靠右对齐容器右缘） ---------- */
.search-bar {
    background: #fff;
    box-shadow: 0 8px 22px rgba(15,45,90,.1);
    position: relative;
    z-index: 5;
    display: flex;
    align-items: stretch;
    flex-wrap: wrap;
}

.sb-case {
    flex: none;
    background: var(--blue);
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 12px clamp(26px,3vw,56px) 12px var(--page-pad);
}

    .sb-case div {
        font-size: clamp(16px,1.7vw,22px);
        letter-spacing: 4px;
        line-height: 1.4;
    }

    .sb-case span {
        font-size: 11px;
        color: #c8dbf5;
        letter-spacing: 2px;
        margin-top: 10px;
    }

.sb-right {
    flex: 1;
    margin-left: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 26px;
    padding: 14px var(--page-pad) 14px 20px;
    flex-wrap: wrap;
}

.sb-hot {
    display: flex;
    flex-direction: column;
    gap: 0px;
    font-size: 13px;
    color: #666666;
    flex-wrap: wrap;
}

    .sb-hot .fstln {
        color: #0e4ebd;
        font-size: 14px;
        letter-spacing: 1px;
        font-weight:bold;
    }

        .sb-hot .fstln span {
            font-style: normal;
            font-size: 14px;
            color: #000;
            margin-left: 4px;
        }

    .sb-hot a:hover {
        color: var(--blue);
    }

.sb-form {
    display: flex;
    align-items: center;
    width: 300px;
    flex: none;
}

    .sb-form input {
        flex: 1;
        min-width: 0;
        border: 1px solid var(--line);
        border-right: 0;
        padding: 0 12px;
        height: 40px;
        font-size: 13px;
    }

    .sb-form .schbtn {
        flex:unset!important;
        display:block;
        margin:0px;
        padding:0px;
        cursor:pointer;
        width: 46px;
        height: 40px;
        background: var(--blue);
        align-items: center;
        justify-content: center;
        background-image: url(/img/ico/sch02.png);
        background-repeat:no-repeat;
        background-position:center center;
        background-size:20px 20px;
    }

    .sb-form svg {
        width: 17px;
        height: 17px;
        stroke: #fff;
        fill: none;
        stroke-width: 2;
    }

/* ---------- 通用区块标题 ---------- */
.sec {
    padding: 66px 0;
}

.sec-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 36px;
}

.eyebrow {
    color: var(--blue);
    font-weight: 700;
    font-size: 23px;
    line-height: 1.6;
}

    .eyebrow span {
        display: block;
        color: #333;
        font-size: 20px;
        font-weight: 700;
    }

.sec-head h2 {
    font-size: clamp(20px,2.4vw,36px);
    color: var(--ink);
    letter-spacing: 2px;
    margin-top: 10px;
    line-height: 1.45;
}

.sec-head .sub {
    color: #333;
    font-size: 14px;
    letter-spacing: 1px;
}

.more {
    color: #333;
    font-size: 18px;
    letter-spacing: 1px;
    white-space: nowrap;
}

    .more:hover {
        color: var(--orange);
    }

.sec-head.center {
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 44px;
    gap: 5px
}

    .sec-head.center .eyebrow span {
        font-size: 20px;
        font-weight: bold;
        color: #333
    }

/* ---------- 首页：产品展示 ---------- */
.products {
    background: url("../../img/pimg/ipbg.jpg") no-repeat top center/cover;
    position: relative;
    overflow: hidden;
}
    /* 水印对齐内容容器（min(1400px,92%)）右上角，--page-pad 随屏宽自适应 */
    .products::before {
        content: "PRODUCT";
        position: absolute;
        top: -50px;
        right: var(--page-pad);
        font-size: clamp(60px,9vw,140px);
        font-weight: 800;
        letter-spacing: 10px;
        color: rgba(26,75,143,.06);
        line-height: 1;
    }

.prod-body {
    display: flex;
    gap: 40px;
    position: relative;
}

.prod-cats {
    width: 220px;
    flex: none;
}

    .prod-cats li {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 12px 5px;
        border-bottom: 1px solid #333;
        margin-bottom: 14px;
        cursor: pointer;
        transition: .25s;
        font-size: 18px;
        letter-spacing: 2px;
        color: #333;
    }

        .prod-cats li img {
            width: 50px;
            height: 50px;
            object-fit: contain;
            flex: none;
        }

        .prod-cats li.on, .prod-cats li:hover {
            border-color: var(--blue);
            color: var(--blue);
            padding-left:30px;
        }

.prod-main {
    flex: 1;
    min-width: 0;
    border-radius:20px;
    overflow:hidden;
}

.prod-stage {
    position: relative;
    background: #fff;
    border: 1px solid var(--line);
    /* 高度不写死，由首个 slide 的图片自然高度撑起，实现容器按图片高度自适应 */
    overflow: hidden;
    border-radius:20px;
}

.prod-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    left: 0px;
    top: 0px;
    right:0px;
    bottom:0px;
    height: 100%;
    /* 各 slide 绝对定位叠放：未选中层用 visibility 隐藏，既不拦截点击（避免链接停在最后一项）也不可被 Tab 聚焦；
       visibility 参与过渡后，淡出期间保持可见、结束才隐藏，交叉淡化不受影响 */
    visibility: hidden;
    transition: opacity .5s ease, visibility .5s;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    border-radius:20px;
    overflow:hidden;
}

    /* 首个 slide 留在文档流中（相对定位），用其图片自然高度撑起 .prod-stage；
       其余 slide 仍绝对定位叠放，交叉淡化不受影响 */
    .prod-slide:first-child {
        position: relative;
        inset: auto;
        height: auto;
    }

    .prod-slide.on {
        opacity: 1;
        visibility: visible;
        /* 当前层置于最上，其内部 a 链接即为鼠标点击命中的链接，与显示的图片同步切换 */
        z-index: 2;
    }
    .prod-slide a {
        display: block;
        border-radius: 20px;
    }
    .prod-slide img {
        width: 100%;
        height: auto;
        display: block;
        border-radius: 20px;
    }

.prod-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 3;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(26,75,143,.85);
    color: #fff;
    font-size: 17px;
    transition: .25s;
}

    .prod-arrow:hover {
        background: var(--orange);
    }

    .prod-arrow.prev {
        left: 14px;
    }

    .prod-arrow.next {
        right: 14px;
    }

.prod-info {
    padding: 24px 6px 0;
}

.prod-info-item {
    display: none;
}

    .prod-info-item.on {
        display: block;
    }

.prod-info h3 {
    font-size: 26px;
    letter-spacing: 1px;
    color: var(--ink);
    display: flex;
    align-items: center;
    gap: 8px;
}

    .prod-info h3 img {
        height: 18px;
        width: auto;
        display: block;
    }

.prod-tag {
    color: #ff7800;
    font-size: 18px;
    letter-spacing: 1px;
    margin: 6px 0 10px;
    height:40px;
    line-height:40px;
}

.prod-desc {
    color: #333;
    font-size: 16px;
    height:60px;
    line-height:30px;
}

/* ---------- 首页：关于我们 ---------- */
.about {
    overflow: hidden;
/*    min-height: calc(100vh - var(--header-h))*/
}
/* GSAP 左右切入时裁掉溢出，避免横向滚动条 */
.about-grid {
    display: flex;
    gap: 56px;
    align-items: stretch;
}

.about-l {
    flex: 1.1;
    min-width: 0;
    background: url("../../img/pimg/icobg.png") no-repeat left bottom/contain;
}

    .about-l h3 {
        font-size: 20px;
        color: var(--ink);
        letter-spacing: 3px;
        margin-bottom: 18px;
    }

    .about-l p {
        color: #333;
        font-size: 14px;
        margin-bottom: 12px;
        text-indent: 2em;
    }

    .about-l .more {
        display: inline-block;
        margin-top: 6px;
        color: #333;
        font-size: 18px;
    }

.about-feats {
    display: flex;
    gap: 14px;
    margin-top: 28px;
    border: 1px solid #333;
    border-radius: 4px;
    background: #fff;
    padding: 20px 12px;
}

    .about-feats li {
        flex: 1;
        text-align: center;
        font-size: 14px;
        color: #333;
        letter-spacing: 2px;
    }

    .about-feats .ico {
        width: 46px;
        height: 46px;
        margin: 0 auto 10px;
        border-radius: 50%;
        background: var(--bg-light);
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .about-feats svg {
        width: 22px;
        height: 22px;
        fill: var(--blue);
    }

.about-r {
    flex: 1;
    min-width: 0;
    position: relative;
}

    .about-r .block-orange {
        position: absolute;
        top: 0;
        right: 0;
        width: 62%;
        height: 58%;
        background: var(--orange);
    }

.about-img {
    position: relative;
    z-index: 1;
    margin: 34px 34px 0 62px;
    height: 340px;
}

.about-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.about-side {
    position: absolute;
    left: 0;
    top: 34px;
    bottom: 0;
    width: 46px;
    z-index: 2;
    background: #fff;
    border: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
}

    .about-side span {
        writing-mode: vertical-lr;
        letter-spacing: 5px;
        color: var(--muted);
        font-size: 13px;
    }

    .about-side b {
        width: 30px;
        height: 30px;
        background: var(--blue);
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        font-weight: 400;
    }

/* ---------- 首页：生产实力 ---------- */
/* 整屏高度 = 视口高 - 导航高（--header-h）；flex 让内容垂直居中，用 min-height 防止内容溢出被截断 */
.strength {
    position: relative;
    color: #fff;
    background: var(--navy);
    padding: 74px 0;
    min-height: calc(100vh - var(--header-h));
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
}
/* 背景用两个叠加图层交替淡入淡出（crossfade），避免直接替换 background-image 造成的闪烁 */
.strength-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity .5s ease;
}

    .strength-bg.on {
        opacity: 1;
    }

.strength::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    background: rgba(9,28,58,.6);
    transition: background .3s;
}

.strength .container {
    position: relative;
    z-index: 2;
}

.strength-head {
    text-align: center;
    margin-bottom: 44px;
}

    .strength-head h2 {
        font-size: clamp(30px,2.8vw,36px);
        letter-spacing: 6px;
    }

    .strength-head p {
        color: #cfe0f7;
        font-size: 14px;
        letter-spacing: 3px;
        margin-top: 8px;
    }

.strength-list {
    position: relative;
    display: flex;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
    padding-bottom: 2px; /* 给 100vw 白色底线留位，橘黄条正好压在白线上方 */
}

    /* 100vw 白色底线：常驻，居中撑出容器宽度限制（.strength 已 overflow:hidden 裁切） */
    .strength-list::after {
        content: "";
        position: absolute;
        left: 50%;
        bottom: 1px;
        transform: translateX(-50%);
        width: 100vw;
        height: 1px;
        background: #fff;
    }

.strength-item {
    flex: 1;
    min-width: 180px;
    text-align: center;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 10px 0;
    -webkit-tap-highlight-color: transparent;
}

    /* 内层收缩到文字块宽度并撑满条目高度，橘黄条挂在其底边，宽度跟随文字、底边与白线对齐 */
    .si-box {
        position: relative;
        flex: 1;
        padding-bottom: 40px;
    }

        .si-box::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 6px;
            background: var(--orange);
            transform: scaleX(0);
            transition: transform .25s ease;
        }

        .strength-item.on .si-box::after {
            transform: scaleX(1);
        }

    .strength-item h3 {
        font-size: 30px;
        letter-spacing: 3px;
        font-weight: 400; /* 默认不加粗，鼠标经过（.on）时再加粗 */
    }

    .strength-item p {
        margin-top: 8px;
        font-size: 24px;
        color: #FFF;
        letter-spacing: 1px;
        min-height: 30px;
    }

    .strength-item.on h3,
    .strength-item.on p {
        font-weight: 700;
    }

.strength-note {
    margin-top: 38px;
    font-size: 13px;
    color: #cfe0f7;
    letter-spacing: 1px;
}

/* ---------- 首页：测试系统 ---------- */
/* 页签：边框卡片（弃用背景图）；左页签内容靠左、右页签内容靠右，中间以边框分割 */
.test-tabs {
    display: flex;
}

.test-tab {
    flex: 1;
    min-width: 0;
    display: flex;
    gap: 14px;
    align-items: flex-start;
    padding: 20px 26px;
    cursor: pointer;
    border: 1px solid var(--line);
    border-bottom: 0;
    background: #fff;
    transition: border-color .25s,background .25s;
}
.test-tabs .test-tab:nth-child(1)
{
    border-radius:8px 0 0 0;
}
.test-tabs .test-tab:nth-child(2) {
    border-radius:0 8px 0 0 ;
}
.test-tab + .test-tab {
    margin-left: -1px;
}

    .test-tab.on {
        position: relative;
        z-index: 1;
        background: var(--bg-light);
    }

    .test-tab:nth-child(2) {
        flex-direction: row-reverse;
        text-align: right;
    }

    .test-tab b {
        font-size: 34px;
        font-style: italic;
        line-height: 1.1;
        color: var(--blue);
    }

    .test-tab.on b {
        color: var(--orange);
    }

    .test-tab h3 {
        font-size: 17px;
        color: var(--ink);
        letter-spacing: 2px;
        line-height: 1.4;
    }

    .test-tab p {
        font-size: 12px;
        color: var(--muted);
        margin-top: 2px;
    }
/* 图台：两图紧靠，选中项展开显示完整图，另一张收缩为侧边窄条 */
.test-stage {
    position: relative;
    display: flex;
    height: clamp(280px,32vw,500px);
    overflow: hidden;
}

/* 分屏幕布遮罩：左右各半幅盖在舞台上，进入视口时由 main.js 向两侧拉开擦除（.test-stage 已 overflow:hidden，拉开后被裁切） */
.ts-curtain {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 50%;
    z-index: 5;
    pointer-events: none;
    background: linear-gradient(180deg, var(--blue-deep), var(--navy));
    will-change: transform, opacity;
}

    .ts-curtain.left {
        left: 0;
        border-right: 1px solid rgba(240,131,0,.45); /* 合缝处橙色细线，拉开前提示幕布分割 */
    }

    .ts-curtain.right {
        right: 0;
    }

.ts-slot {
    position: relative;
    flex: 0 0 82%;
    min-width: 0;
    overflow: hidden;
    background: #dfe6ee;
    transition: flex-basis .45s cubic-bezier(.4,0,.2,1);
}

    .ts-slot img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
    }
    /* 收缩的那张盖黑色遮罩(0.6)，展开后淡出；随 flip 两张轮换 */
    .ts-slot::after {
        content: "";
        position: absolute;
        inset: 0;
        background: #000;
        opacity: 0;
        transition: opacity .45s cubic-bezier(.4,0,.2,1);
        pointer-events: none;
    }

    .ts-slot + .ts-slot {
        flex-basis: 18%;
    }

        .ts-slot + .ts-slot::after {
            opacity: .7;
        }

.test-stage.flip .ts-slot {
    flex-basis: 18%;
}

    .test-stage.flip .ts-slot::after {
        opacity: .6;
    }

    .test-stage.flip .ts-slot + .ts-slot {
        flex-basis: 82%;
    }

        .test-stage.flip .ts-slot + .ts-slot::after {
            opacity: 0;
        }
/* 边界橙圆箭头：跟随边界移动，箭头方向随状态翻转 */
.ts-arrow {
    position: absolute;
    z-index: 3;
    top: 50%;
    left: calc(82% - 22px);
    width: 44px;
    height: 44px;
    margin-top: -22px;
    border-radius: 50%;
    background: var(--orange);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 16px rgba(0,0,0,.28);
    transition: left .45s cubic-bezier(.4,0,.2,1);
}

    .ts-arrow svg {
        width: 20px;
        height: 20px;
        stroke: #fff;
        fill: none;
        stroke-width: 2.6;
        transition: transform .3s;
    }

.test-stage.flip .ts-arrow {
    left: calc(18% - 22px);
}

    .test-stage.flip .ts-arrow svg {
        transform: rotate(180deg);
    }

/* ---------- 首页：应用领域 ---------- */
.apply {
    background: #fff;
    position: relative;
    overflow: hidden;
    padding-bottom: 140px;
}

    .apply::before {
        content: "";
        position: absolute;
        left: 0;
        right: 0;
        top: 0;
        bottom: 140px;
        background: url("/img/pimg/iappbg.jpg") center/cover no-repeat;
    }

    .apply .container {
        position: relative;
        z-index: 2;
    }

.apply-head {
    text-align: center;
    color: #fff;
    margin-bottom: 40px;
}

    .apply-head h2 {
        font-size: clamp(22px,2.6vw,30px);
        letter-spacing: 6px;
    }

    .apply-head p {
        color: #cfe0f7;
        font-size: 14px;
        letter-spacing: 1px;
        margin-top: 10px;
    }

.apply-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 24px;
    margin-bottom: -140px;
}

.apply-card {
    position: relative;
    overflow: hidden;
    background: #dfe6ee;
    display:block;
}

    .apply-card .apply-img {
        width: 100%;
        transition: transform .5s ease;
    }

        .apply-card .apply-img img {
            width: 100%;
            height: auto;
            display: block;
        }

    .apply-card:hover .apply-img {
        transform: scale(1.06);
    }

.apply-bar {
    position: absolute;
    z-index:2;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 3;
    color: #fff;
    height:140px;
    box-sizing:border-box;
    padding: 10px 18px 32px;
    text-align: center;
}

.apply-barbg {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2;
    background: #000;
    opacity: 0.6;
    height: 140px;
    text-align: center;
}

.apply-bar h3 {
    font-size: 36px;
    text-indent: 8px;
}

    .apply-bar h3::after {
        content: "";
        display: block;
        width: 76px;
        height: 6px;
        border-radius:3px;
        background: var(--orange);
        margin: 9px auto 0;
    }

.apply-bar p {
    font-size: 16px;
    color: #dfe8f7;
    margin-top: 8px;
    letter-spacing: 1px;
}

.apply-plus {
    position: absolute;
    right: -20px;
    bottom: -20px;
    width: 80px;
    height: 80px;
    background-color: #003a8f;
    border-radius: 50%;
    box-sizing: border-box;
}

    .apply-plus img {
        width: 20px;
        height: 20px;
        object-fit: contain;
        display: block;
        margin-left: 25px;
        margin-top: 23px;
    }

/* ---------- 首页：新闻资讯 ---------- */
.news {
    overflow: hidden;
}
/* GSAP 左右切入时裁掉溢出，避免横向滚动条 */
.news-grid {
    display: flex;
    gap: 34px;
}

.news-fea {
    flex: 1.05;
    min-width: 0;
    border: 1px solid var(--line);
    background: #fff;
    transition: box-shadow .25s;
}
    /* transition 仅限 box-shadow，避免 all 接管 GSAP 的 transform/opacity 导致入场位置异常 */
    .news-fea:hover {
        box-shadow: 0 12px 28px rgba(15,45,90,.12);
    }

    .news-fea .img-slot {
        height: 250px;
    }

    .news-fea .img-slot img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
    }

    .news-fea .txt {
        padding: 20px 22px;
        background: #f7f7f7;
    }

    .news-fea h3 {
        font-size: 17px;
        color: #333;
        letter-spacing: 1px;
    }

    .news-fea p {
        color: var(--muted);
        font-size: 13px;
        margin: 8px 0 10px;
    }

    .news-fea .more {
        color: var(--blue);
    }

.news-list {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--line);
}

.news-item {
    flex: 1;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    align-content: center;
    border-bottom: 1px solid var(--line);
    padding: 12px 0;
    text-decoration: none;
}

    .news-item:first-child {
        padding-top: 0;
    }

    /* 标题占满剩余宽度，超长用 … 裁切 */
    .news-item h3 {
        flex: 1;
        min-width: 0;
        font-size: 16px;
        color: #333;
        letter-spacing: 1px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    /* 日期与标题同行靠右：大字号入流排布，不再绝对定位 */
    .news-item .date {
        margin-left: 14px;
        color: #999;
        font-size: 23px;
        line-height: 1;
        letter-spacing: 1px;
    }

    .news-item p {
        flex-basis: 100%;
        color: var(--muted);
        font-size: 13px;
        margin-top: 6px;
    }

/* ---------- 首页：合作企业 ---------- */
.partners {
    background-color: #003a8f;
    color: #fff;
    position: relative;
    padding: 0px 0 74px;
    padding-bottom: 0px;
    overflow: hidden;
}

.partner-img {
    width: 100%;
    height: auto;
    display: block;
}

.partners .container {
    position: relative;
    z-index: 2;
    width: 100%;
}

.partners-head {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    text-align: center;
    padding-top:40px;
}

    .partners-head h2 {
        font-size: clamp(20px,3vw,46px);
        letter-spacing: 2px;
        line-height: 1.6;
    }

    .partners-head a {
        display: inline-block;
        margin-top: 12px;
        font-size: 13px;
        color: #ffd9a8;
        border-bottom: 1px solid rgba(255,217,168,.6);
        letter-spacing: 1px;
    }

        .partners-head a:hover {
            color: #fff;
            border-color: #fff;
        }

.partner-logos {
    margin-top: 40px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 26px 36px;
}

    .partner-logos li {
        width: 96px;
        height: 96px;
        border-radius: 50%;
        background: #fff;
        color: var(--blue);
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
        font-size: 13px;
        font-weight: 700;
        line-height: 1.4;
        padding: 10px;
        box-shadow: 0 8px 20px rgba(0,0,0,.2);
        letter-spacing: 1px;
        transition: .25s;
    }

        .partner-logos li:hover {
            transform: translateY(-4px);
        }

/* ---------- 子页公共:横幅 ---------- */
.page-banner {
    position: relative;
    background-color: var(--navy);
    overflow: hidden;
}

    .page-banner img {
        width: 100%;
        height: auto;
        display: block;
    }

    .page-banner.has-txt::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(90deg,rgba(5,18,42,.72),rgba(5,18,42,.3) 55%,rgba(5,18,42,.12));
    }

    .page-banner .ban-txt {
        position: absolute;
        inset: 0;
        z-index: 2;
        display: flex;
        flex-direction: column;
        justify-content: center;
        color: #fff;
        width: min(1400px,92%);
        margin: 0 auto;
    }

        .page-banner .ban-txt h2 {
            font-size: clamp(24px,3.2vw,44px);
            font-weight: 700;
            letter-spacing: 5px;
            text-shadow: 0 2px 12px rgba(0,0,0,.4);
        }

        .page-banner .ban-txt p {
            margin-top: 12px;
            font-size: clamp(12px,1.1vw,16px);
            letter-spacing: 2px;
            color: #e2eaf7;
        }

/* ---------- 子页公共:标题栏 ---------- */
.page-bar {
    background: #dfe1e5;
    display: flex;
    align-items: stretch;
    flex-wrap: wrap;
    position: relative;
    z-index: 5;
}
/* 蓝色块通栏铺到屏幕左缘，块内文字用 --page-pad 对齐到下方内容容器左侧 */
.pb-title {
    flex: none;
    background: var(--blue);
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 12px clamp(26px,3vw,56px) 12px var(--page-pad);
}

    .pb-title h1 {
        font-size: clamp(16px,1.7vw,22px);
        letter-spacing: 4px;
        line-height: 1.4;
    }

    .pb-title span {
        font-size: 11px;
        letter-spacing: 2px;
        color: #c8dbf5;
        margin-top: 2px;
    }

.pb-tabs {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px var(--page-pad) 10px 20px;
    flex-wrap: wrap;
}

    .pb-tabs a {
        padding: 5px 22px;
        border-radius: 15px;
        font-size: 13px;
        color: #57606d;
        letter-spacing: 1px;
        white-space: nowrap;
    }

        .pb-tabs a.on {
            background: #fff;
            color: #333;
            box-shadow: 0 2px 10px rgba(0,0,0,.14);
        }

        .pb-tabs a:hover:not(.on) {
            color: var(--blue);
        }

/* ---------- 子页公共:分页 ---------- */
.pager {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-top: 46px;
    font-size: 14px;
    color: #6b7684;
}

    .pager a, .pager b {
        min-width: 32px;
        height: 32px;
        padding: 0 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 400;
        border-radius: 2px;
        transition: .2s;
    }

        .pager a:hover {
            color: var(--blue);
        }

        .pager a.on {
            background: var(--blue);
            color: #fff;
        }

/* ---------- 子页公共:侧栏卡片 ---------- */
.side-card {
    border: 1px solid var(--line);
    background: #fff;
    border-radius: 6px;
    overflow: hidden;
}

    .side-card + .side-card {
        margin-top: 24px;
    }

.sc-head {
    background: #003a8f;
    color: #fff;
    padding: 16px 22px;
    font-size: 18px;
    letter-spacing: 3px;
}

.sc-cats li {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 15px 22px;
    border-top: 1px solid var(--line);
    font-size: 15px;
    letter-spacing: 2px;
    color: #3c4a5c;
    cursor: pointer;
    transition: .2s;
}

    .sc-cats li svg, .sc-cats li img {
        width: 26px;
        height: 26px;
        stroke: var(--blue);
        fill: none;
        stroke-width: 1.6;
        flex: none;
        object-fit: contain;
    }

    .sc-cats li:hover, .sc-cats li.on {
        color: var(--blue);
        background: #f3f7fc;
    }
/* 选型指南与联系我们同卡时，中间加一条分隔线 */
.sc-cats + .sc-contact {
    border-top: 1px solid var(--line);
}

.sc-contact {
    padding: 22px;
}

    .sc-contact h4 {
        font-size: 20px;
        color: var(--ink);
        letter-spacing: 2px;
    }

    .sc-contact .en {
        font-size: 12px;
        color: var(--muted);
        letter-spacing: 1px;
        margin: 2px 0 10px;
    }

    .sc-contact .tel {
        font-size: 26px;
        font-weight: 700;
        color: var(--ink);
        letter-spacing: 1px;
    }

    .sc-contact .addr {
        font-size: 12px;
        color: var(--muted);
        margin-top: 10px;
        line-height: 1.6;
    }

/* ---------- 子页公共:橙条标题 ---------- */
.bar-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: clamp(17px,1.8vw,21px);
    color: var(--ink);
    letter-spacing: 2px;
    margin: 36px 0 16px;
}

    .bar-title::before {
        content: "";
        flex: none;
        width: 4px;
        height: 20px;
        background: var(--orange);
    }

/* ---------- 响应式 ---------- */
@media (max-width:992px) {
    :root {
        --header-h: 76px;
    }
    /* 移动端头部保持较矮，不跟随桌面端 130px */
    .logo img {
        height: 40px;
    }

    .nav-toggle {
        display: block;
    }

    .lang {
        margin-left: auto;
    }
    /* 移动端：语言切换+菜单按钮整体靠右 */
    /* 移动端菜单层：全屏铺到页面底部，顶部保持现状 */
    .main-nav {
        position: fixed;
        top: var(--header-h);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--navy);
        margin: 0;
        display: none;
        overflow-y: auto;
    }

        .main-nav.open {
            display: block;
        }

    .nav-drop {
        display: none !important;
    }

    .main-nav ul {
        flex-direction: column;
        gap: 0;
        padding: 6px 0;
    }

    .main-nav a {
        line-height: 46px;
        padding: 0 5%;
        color: #d5e0f2;
    }

        .main-nav a:hover, .main-nav a.active {
            color: #fff;
        }

            .main-nav a.active::after {
                display: none;
            }

    .prod-body {
        flex-direction: column;
        gap: 24px;
    }

    .prod-cats {
        width: 100%;
        display: flex;
        gap: 12px;
        overflow-x: auto;
        padding-bottom: 4px;
        scrollbar-width: none; /* Firefox */
        -ms-overflow-style: none; /* IE / 旧版 Edge */
    }
        .prod-cats::-webkit-scrollbar {
            display: none; /* Chrome / Safari / Edge */
        }
        .prod-cats li {
            margin-bottom: 0;
            white-space: nowrap;
            flex: none;
        }

            /* 左内边距位移（padding-left:30px）仅电脑端生效，手机端还原 .prod-cats li 的基础 5px */
            .prod-cats li.on, .prod-cats li:hover {
                transform: none;
                padding-left: 5px;
            }

    /* 侧栏卡片手机端折叠：标题条整条可点，右侧倒三角指示，展开时翻转向上（.open 由 pages.js 切换） */
    .side-card .sc-head {
        display: flex;
        align-items: center;
        justify-content: space-between;
        cursor: pointer;
        -webkit-tap-highlight-color: transparent;
    }

        /* 倒三角：仅上边有色，下边宽置 0，旋转 180° 即变展开态 */
        .side-card .sc-head::after {
            content: "";
            flex: none;
            width: 0;
            height: 0;
            border: 6px solid transparent;
            border-top-color: #fff;
            border-bottom-width: 0;
            margin-top: 3px;
            transition: transform .25s;
        }

    .side-card.open .sc-head::after {
        transform: rotate(180deg);
    }

    .side-card .sc-cats {
        display: none;
    }

    .side-card.open .sc-cats {
        display: block;
    }

    /* 侧栏卡片手机端只保留产品选型指南，联系我们整块不显示（页尾已有完整联系方式） */
    .sc-contact {
        display: none;
    }

    .about-grid {
        flex-direction: column;
        gap: 44px;
    }

    .about-img {
        margin: 34px 20px 0 56px;
        height: 300px;
    }

    .news-grid {
        flex-direction: column;
    }

    .pb-tabs {
        padding: 10px 4vw;
    }

    .test-stage {
        height: 300px;
    }

    .ts-arrow {
        width: 38px;
        height: 38px;
        margin-top: -19px;
        left: calc(82% - 19px);
    }

    .test-stage.flip .ts-arrow {
        left: calc(18% - 19px);
    }

    .footer-top {
        gap: 34px;
    }
}

@media (max-width:768px) {
    .sec {
        padding: 46px 0;
    }

    .page-bar {
        flex-direction: column;
    }

    .pb-title {
        width: 100%;
    }

    .pb-tabs {
        margin: 0;
        width: 100%; /* .page-bar 在手机端为列向 flex，不定宽时单行交叉尺寸会被不换行的页签撑大，连带整页横向溢出 */
        padding: 8px 4vw 12px;
        flex-wrap: nowrap;
        overflow-x: auto; /* 页签超出宽度时改为内部左右滑动 */
        scrollbar-width: none; /* Firefox */
        -ms-overflow-style: none; /* IE / 旧版 Edge */
    }

        .pb-tabs::-webkit-scrollbar {
            display: none; /* Chrome / Safari / Edge：隐滚动条，仅保留手势滑动 */
        }

        .pb-tabs a {
            flex: none; /* 配合 white-space:nowrap，保证页签不被压缩变形 */
        }

    .pager {
        margin-top: 32px;
    }

    .sec-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        margin-bottom: 26px;
    }

        .sec-head.center {
            align-items: center;
        }

    .search-bar {
        flex-direction: column;
    }

    .sb-case {
        width: 100%;
    }

    .sb-right {
        margin: 0;
        width: 100%;
        padding: 12px 4vw;
        gap: 14px;
    }

    .sb-form {
        width: 100%;
    }

    .prod-stage {
        /* 手机端同样按图片自然高度自适应，不写死高度 */
        border-radius:8px;
        overflow:hidden;
    }

    .strength-list {
        gap: 10px;
    }

    .strength-item {
        min-width: 44%;
    }

    .test-tabs {
        flex-direction: column;
        gap: 10px;
        margin-bottom: 10px;
    }

    .test-tab {
        padding: 16px 18px;
        border-bottom: 1px solid var(--line);
    }

        .test-tab + .test-tab {
            margin-left: 0;
        }

    .apply {
        padding-bottom: 66px;
    }

    .apply::before {
        bottom: 0;
        background: linear-gradient(rgba(15,61,124,.72),rgba(15,61,124,.72)), url("/img/pimg/iappbg.jpg") center/cover no-repeat var(--blue-deep);
    }

    .apply-grid {
        grid-template-columns: 1fr;
        margin-bottom: 0;
    }

    .partners {
        padding: 20px 0;
        background: #003a8f;
    }

    .partners-head {
        padding-top: 0px;
    }

    .partners-head h2 {
        font-size: 14px;
    }

    .partner-logos li {
        width: 78px;
        height: 78px;
        font-size: 12px;
    }

    .footer-top {
        flex-direction: column;
        gap: 30px;
        padding: 40px 0 30px;
    }
}

@media (max-width:480px) {
    .logo-cn {
        font-size: 18px;
        letter-spacing: 3px;
    }

    .main-nav a {
        font-size: 14px;
    }

    .hero-txt h2 {
        letter-spacing: 3px;
    }

    .strength-item {
        min-width: 100%;
    }
    .ab-strength{
        padding:0 0 20px 0;
    }
    .strength-list::after {
        content: "";
        position: absolute;
        left: 50%;
        bottom: 1px;
        transform: translateX(-50%);
        width: 100vw;
        height: 0px;
        background: #fff;
    }
    .ft-tel {
        font-size: 22px;
    }
}