/* ============ 企业官网前台样式（主色 #2596B6，还原参考站配色） ============ */
:root{
  --brand:#2596b6; --brand-d:#1d7c97; --brand-l:#eafafc;
  --txt:#333; --txt-2:#666; --txt-3:#999; --line:#e5e5e5; --bg-gray:#f5f7f8;
  --dark:#20414e;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;color:var(--txt);background:#fff;font-size:14px;line-height:1.7}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
img{max-width:100%;border:0;display:block}
.container{width:1200px;max-width:94%;margin:0 auto}
.empty{text-align:center;color:var(--txt-3);padding:40px 0}

/* ---------------- Header ---------------- */
.site-header{background:#fff;box-shadow:0 1px 6px rgba(0,0,0,.06);position:relative;z-index:50}
.head-inner{display:flex;align-items:center;justify-content:space-between;height:96px}
.logo{display:flex;align-items:center;gap:12px}
.logo img{height:52px;width:auto}
.logo-txt b{display:block;font-size:24px;color:var(--brand);letter-spacing:1px;line-height:1.2}
.logo-txt i{display:block;font-style:normal;font-size:11px;color:var(--txt-3);letter-spacing:1.5px;text-transform:uppercase}
.hotline{display:flex;align-items:center;gap:8px;color:var(--brand)}
.hotline .ico{font-size:26px}
.hot-txt i{display:block;font-style:normal;font-size:12px;color:var(--txt-3)}
.hot-txt b{font-size:20px;letter-spacing:.5px}
.nav-toggle{display:none;background:none;border:1px solid var(--line);font-size:20px;padding:4px 10px;border-radius:4px;cursor:pointer;color:var(--brand)}

.mainnav{background:var(--brand)}
.mainnav ul{display:flex}
.nav-item>a{display:block;color:#fff;font-size:16px;padding:0 30px;line-height:52px;position:relative;transition:background .2s}
.nav-item>a:hover,.nav-item.active>a{background:var(--brand-d)}
.nav-item{position:relative}
.subnav{position:absolute;left:0;top:52px;min-width:170px;background:#fff;box-shadow:0 4px 14px rgba(0,0,0,.15);display:none;z-index:60}
.nav-item:hover .subnav{display:block}
.subnav a{display:block;padding:10px 16px;color:var(--txt);font-size:14px;border-bottom:1px solid var(--line)}
.subnav a:hover{color:#fff;background:var(--brand)}

/* ---------------- Banner ---------------- */
.banner{position:relative;overflow:hidden;background:#0c1c2b}
.slides{position:relative}
.slide{display:none}
.slide.on{display:block;animation:fade .7s}
.slide img{width:100%;height:520px;object-fit:cover}
@keyframes fade{from{opacity:.25}to{opacity:1}}
.dots{position:absolute;bottom:18px;left:0;right:0;text-align:center;z-index:5}
.dots i{display:inline-block;width:28px;height:4px;background:rgba(255,255,255,.45);margin:0 4px;cursor:pointer;border-radius:2px}
.dots i.on{background:#fff}
.bn-prev,.bn-next{position:absolute;top:50%;transform:translateY(-50%);z-index:5;font-size:44px;color:rgba(255,255,255,.6);line-height:1;padding:6px 14px;user-select:none}
.bn-prev{left:14px}.bn-next{right:14px}
.bn-prev:hover,.bn-next:hover{color:#fff}

/* ---------------- 区块标题 ---------------- */
.section{padding:60px 0}
.sec-gray{background:var(--bg-gray)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:34px}
.sec-t h2{font-size:30px;color:var(--txt);display:inline-block}
.sec-t span{display:block;font-size:14px;color:var(--txt-3);letter-spacing:3px;text-transform:uppercase;margin-top:2px}
.sec-t{position:relative;padding-left:16px;border-left:4px solid var(--brand)}
.sec-more{color:var(--txt-3);font-size:14px}
.sec-more:hover{color:var(--brand)}
.sec-t.light h2{color:#fff}
.sec-t.light span{color:rgba(255,255,255,.75)}

/* ---------------- 产品 ---------------- */
.cat-tabs{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:28px}
.cat-tabs li{padding:0;border:1px solid var(--line);border-radius:20px;cursor:pointer;color:var(--txt-2);background:#fff;transition:.2s}
.cat-tabs li a{display:block;padding:7px 26px;color:inherit;text-decoration:none}
.cat-tabs li:hover{color:var(--brand);border-color:var(--brand)}
.cat-tabs li.on{background:var(--brand);border-color:var(--brand);color:#fff}
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.prod-card{background:#fff;border:1px solid var(--line);overflow:hidden;transition:.25s}
.prod-card:hover{transform:translateY(-5px);box-shadow:0 10px 26px rgba(37,150,182,.18);border-color:var(--brand)}
.prod-img{height:200px;overflow:hidden;background:#fff;display:flex;align-items:center;justify-content:center}
.prod-img img{width:100%;height:100%;object-fit:contain;padding:12px;transition:transform .3s}
.prod-card:hover .prod-img img{transform:scale(1.05)}
.prod-info{padding:11px 14px;border-top:1px solid var(--line)}
.prod-info h3{font-size:14px;font-weight:normal;color:var(--txt);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.prod-info p{font-size:12px;color:var(--txt-3);margin-top:4px}

/* ---------------- 关于我们 ---------------- */
.about-sec{background:linear-gradient(120deg,#1c6f8a,#2596b6 55%,#3aa5c2);color:#fff}
.about-inner{display:flex;align-items:center;gap:50px}
.about-img{flex:0 0 44%}
.about-img img{border-radius:6px;box-shadow:0 12px 30px rgba(0,0,0,.25)}
.about-txt p{color:rgba(255,255,255,.92);text-indent:2em;margin:18px 0 26px}
.btn-more{display:inline-block;background:var(--brand);color:#fff;padding:10px 28px;border-radius:22px;font-size:14px;border:1px solid var(--brand);transition:.2s;cursor:pointer;font-family:inherit;text-align:center}
.btn-more:hover{background:var(--brand-d);border-color:var(--brand-d);color:#fff}
.about-txt .btn-more{background:#fff;color:var(--brand);border-color:#fff}
.about-txt .btn-more:hover{background:transparent;color:#fff}

/* ---------------- 新闻 ---------------- */
.news-list{display:grid;grid-template-columns:1fr 1fr;gap:20px 40px}
.news-item a{display:flex;gap:18px;padding:18px 0;border-bottom:1px dashed var(--line)}
.news-date{flex:0 0 72px;text-align:center;background:var(--brand-l);color:var(--brand);border-radius:4px;padding:8px 0;height:72px}
.news-date b{display:block;font-size:24px;line-height:1.1}
.news-date span{font-size:12px}
.news-txt h3{font-size:16px;font-weight:normal;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-txt p{font-size:13px;color:var(--txt-3);margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item a:hover h3{color:var(--brand)}

/* ---------------- 内页 ---------------- */
.inner-banner{background:linear-gradient(120deg,#155d75,#2596b6);color:#fff;padding:52px 0 44px}
.inner-banner h1{font-size:32px;font-weight:normal}
.inner-banner span{font-size:13px;letter-spacing:3px;color:rgba(255,255,255,.7);text-transform:uppercase}
.crumb{border-bottom:1px solid var(--line);background:#fafbfc;color:var(--txt-3);font-size:13px}
.crumb .container{padding:12px 0}
.crumb a:hover{color:var(--brand)}
.inner{display:flex;gap:34px;padding:40px 0 60px;align-items:flex-start}
.inner.narrow{display:block;max-width:900px}
.side-cat{flex:0 0 240px;background:#fff;border:1px solid var(--line);border-radius:4px}
.side-cat h3{background:var(--brand);color:#fff;font-size:16px;padding:12px 18px;font-weight:normal}
.side-cat li a{display:block;padding:11px 18px;border-bottom:1px solid var(--line);color:var(--txt-2)}
.side-cat li.on a,.side-cat li a:hover{color:var(--brand);background:var(--brand-l)}
.side-contact{padding:16px 18px;font-size:13px;color:var(--txt-2)}
.side-contact h4{color:var(--brand);margin-bottom:8px}
.main-list{flex:1;min-width:0}
.list-bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;color:var(--txt-3);gap:14px;flex-wrap:wrap}
.list-bar form{display:flex;gap:8px;flex:0 1 480px;min-width:260px}
.list-bar input{border:2px solid #bfe0ea;background:#f8fcfd url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2024%2024'%20fill='none'%20stroke='%232596B6'%20stroke-width='2.2'%20stroke-linecap='round'%3E%3Ccircle%20cx='11'%20cy='11'%20r='7'/%3E%3Cpath%20d='M20%2020l-3.6-3.6'/%3E%3C/svg%3E") no-repeat 13px center;background-size:17px 17px;padding:11px 16px 11px 40px;border-radius:6px;width:100%;outline:none;font-size:14px;color:var(--txt-1);transition:border-color .18s,box-shadow .18s,background-color .18s;box-shadow:0 1px 3px rgba(37,150,182,.07)}
.list-bar input::placeholder{color:#9aa8b0}
.list-bar input:hover{border-color:var(--brand)}
.list-bar input:focus{border-color:var(--brand);background-color:#fff;box-shadow:0 0 0 4px rgba(37,150,182,.14)}
.list-bar button{background:var(--brand);color:#fff;border:0;padding:11px 26px;border-radius:6px;cursor:pointer;font-size:14px;font-family:inherit;transition:background .18s;flex:none}
.list-bar button:hover{background:var(--brand-d)}

/* ---------- 产品详情（新版排版） ---------- */
.pd-wrap{padding:30px 0 60px}
.pd-main{display:flex;gap:34px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:26px;box-shadow:0 2px 14px rgba(0,0,0,.05)}
.pd-gallery{flex:0 0 360px;max-width:360px}
.pd-stage{border:1px solid var(--line);border-radius:6px;height:320px;display:flex;align-items:center;justify-content:center;background:#fafcfd;padding:14px;overflow:hidden}
.pd-stage img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;display:block}
.pd-thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:10px}
.pd-thumb{border:1px solid var(--line);border-radius:4px;padding:4px;height:58px;display:flex;align-items:center;justify-content:center;background:#fff;cursor:pointer;transition:.2s}
.pd-thumb img{max-width:100%;max-height:100%;object-fit:contain}
.pd-thumb:hover,.pd-thumb.on{border-color:var(--brand);box-shadow:0 0 0 2px rgba(37,150,182,.16)}
.pd-meta{flex:1;min-width:0;padding-top:2px}
.pd-meta h1{font-size:22px;font-weight:600;line-height:1.5;color:#222}
.pd-model{margin-top:9px;font-size:13px;color:var(--txt-3)}
.pd-model b{color:var(--brand);font-weight:600;letter-spacing:.3px}
.pd-summary{margin:14px 0 0;padding:11px 15px;background:var(--brand-l);border-left:3px solid var(--brand);border-radius:0 6px 6px 0;color:#42636f;font-size:13.5px;line-height:1.85}
.pd-attrs{margin-top:14px}
.pd-attrs li{display:flex;align-items:baseline;padding:9px 0;font-size:13.5px;border-bottom:1px dashed var(--line)}
.pd-attrs li i{flex:0 0 86px;font-style:normal;color:var(--txt-3)}
.pd-attrs li span{color:var(--txt);word-break:break-all}
.pd-cta{display:flex;align-items:center;gap:12px;margin-top:20px;flex-wrap:wrap}
.btn-main{display:inline-block;background:var(--brand);color:#fff;padding:11px 34px;border-radius:4px;font-size:15px;transition:.2s}
.btn-main:hover{background:var(--brand-d);color:#fff}
.btn-ghost{display:inline-block;border:1px solid var(--brand);color:var(--brand);padding:10px 28px;border-radius:4px;font-size:15px;transition:.2s}
.btn-ghost:hover{background:var(--brand-l)}
.pd-promise{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.pd-promise li{font-size:12px;color:#4a6b78;background:#f2f9fb;border:1px solid #dcecf2;border-radius:14px;padding:3px 12px}
.pd-tel{margin-top:18px;padding-top:14px;border-top:1px dashed var(--line);display:flex;align-items:baseline;gap:10px}
.pd-tel i{font-style:normal;color:var(--txt-3);font-size:12px}
.pd-tel b{color:var(--brand);font-size:20px;letter-spacing:.5px}
.pd-block{background:#fff;border:1px solid var(--line);border-radius:8px;margin-top:20px;padding:0 30px 30px}
.pd-block-head{border-bottom:1px solid var(--line);padding:18px 0 13px;margin-bottom:22px;display:flex;align-items:baseline;gap:12px}
.pd-block-head h3{font-size:17px;font-weight:600;position:relative;padding-left:14px}
.pd-block-head h3:before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:17px;background:var(--brand);border-radius:2px}
.pd-block-head span{font-size:12px;color:var(--txt-3);letter-spacing:2px;text-transform:uppercase}
.pd-pager{display:flex;gap:14px;margin:20px 0}
.pd-pager a{flex:1;min-width:0;background:#fff;border:1px solid var(--line);border-radius:6px;padding:12px 18px;font-size:13px;color:var(--txt);transition:.2s;overflow:hidden}
.pd-pager a i{font-style:normal;color:var(--brand)}
.pd-pager a b{display:block;font-weight:normal;font-size:13.5px;color:var(--txt);margin-top:4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pd-pager a:hover{border-color:var(--brand);box-shadow:0 4px 12px rgba(37,150,182,.12)}
.pd-pager a:hover b{color:var(--brand)}
.pd-pager-empty{flex:1;border:1px dashed var(--line);border-radius:6px;padding:14px 18px;color:var(--txt-3);font-size:13px;text-align:center}
.pd-nav{display:flex;justify-content:space-between;margin:26px 0;color:var(--txt-2);font-size:13px}
.pd-nav a:hover{color:var(--brand)}
.rel{margin-top:20px}
.rel .prod-grid{grid-template-columns:repeat(4,1fr)}

/* 侧栏分类（支持二级：点击父分类展开 / 再点收起） */
.sc-list li a{display:block;padding:11px 18px;border-bottom:1px solid var(--line);color:var(--txt-2)}
.sc-list li.on>a,.sc-list li a:hover{color:var(--brand);background:var(--brand-l)}
.sc-list .sc-toggle{position:relative;padding-right:44px;cursor:pointer}
.sc-list .sc-sub{display:none}
.sc-list .sc-top.open>.sc-sub{display:block}
.sc-list .sc-arrow{position:absolute;right:19px;top:50%;width:7px;height:7px;border-right:2px solid #9cb2bb;border-bottom:2px solid #9cb2bb;transform:translateY(-70%) rotate(45deg);transition:transform .2s,border-color .2s}
.sc-list .sc-top.open>.sc-toggle{color:var(--brand);background:var(--brand-l)}
.sc-list .sc-top.open>.sc-toggle .sc-arrow{transform:translateY(-30%) rotate(-135deg);border-color:var(--brand)}
.sc-list .sc-top.sub-on>.sc-toggle{color:var(--brand)}
.sc-list .sc-top.sub-on>.sc-toggle .sc-arrow{border-color:var(--brand)}
.sc-sub li a{padding-left:36px;font-size:13px;color:var(--txt-3);background:#fbfdfe}
.sc-sub li.on a{color:var(--brand);background:var(--brand-l);font-weight:600}
.sc-sub li:last-child a{border-bottom:1px solid var(--line)}

/* 资料下载 */
.dl-btn{display:inline-block;margin-left:10px;background:var(--brand);color:#fff;font-size:12px;padding:3px 12px;border-radius:3px;transition:.2s}
.dl-btn:hover{background:var(--brand-d);color:#fff}
.dl-none{display:inline-block;margin-left:10px;font-size:12px;color:#bbb}
.dl-box{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:26px;padding:18px 20px;background:#f7fbfc;border:1px dashed #cfe4ec;border-radius:6px}
.dl-box .btn-more{background:var(--brand);color:#fff;border-color:var(--brand)}
.dl-box .btn-more:hover{background:var(--brand-d);color:#fff}
.dl-name{font-size:13px;color:var(--txt-3)}

/* ---------- 富文本正文统一版式 ---------- */
.rich{font-size:15px;line-height:2;color:#444;word-wrap:break-word}
.rich>p{margin:0 0 16px}
.rich h1,.rich h2,.rich h3,.rich h4{font-weight:600;color:#222;margin:24px 0 14px;line-height:1.5}
.rich h1{font-size:24px}
.rich h2{font-size:20px;border-left:4px solid var(--brand);padding-left:12px}
.rich h3{font-size:17px}
.rich h4{font-size:15px}
.rich ul,.rich ol{padding-left:26px;margin:0 0 16px}
.rich ul{list-style:disc}
.rich ol{list-style:decimal}
.rich li{margin:7px 0}
.rich img{max-width:100%;height:auto;border-radius:6px;margin:14px auto;display:block}
.rich a{color:var(--brand);text-decoration:underline}
.rich hr{border:0;border-top:1px dashed var(--line);margin:26px 0}
.rich blockquote{margin:16px 0;padding:12px 18px;background:var(--brand-l);border-left:4px solid var(--brand);border-radius:0 6px 6px 0;color:#4a6b78}
.rich table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14px}
.rich table th,.rich table td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
.rich table th{background:#f3f8fa;color:#2c5f70;font-weight:600;white-space:nowrap}
.rich table tr:nth-child(even) td{background:#fafcfd}
.rich strong{color:#222}
.rich p:empty{display:none}

/* 文章列表/详情 */
.art-list .grp{background:var(--brand-l);color:var(--brand);padding:8px 14px;border-radius:4px;margin:14px 0 4px}
.art-item{border:1px solid var(--line);border-radius:4px;margin-bottom:16px;background:#fff;transition:.2s;overflow:hidden}
.art-item:hover{box-shadow:0 6px 18px rgba(0,0,0,.08);border-color:var(--brand)}
.art-item>a{display:flex;gap:20px;padding:18px}
.art-img{flex:0 0 200px;height:130px;border-radius:4px;overflow:hidden;background:var(--bg-gray);display:flex;align-items:center;justify-content:center}
.art-img img{width:auto;height:auto;max-width:100%;max-height:100%;display:block}
.art-body{flex:1;min-width:0}
.art-body h3{font-size:17px;font-weight:normal;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.art-summary{color:var(--txt-3);font-size:13px;margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.art-meta{color:var(--txt-3);font-size:12px;margin-top:10px;display:flex;gap:18px}
.art-meta .dl{color:var(--brand)}
.art-item:hover h3{color:var(--brand)}
.art-detail h1{font-size:24px;font-weight:normal;text-align:center;margin-bottom:10px}
.art-detail .art-meta{justify-content:center;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:20px}
.art-cover{margin-bottom:18px;text-align:center}
.art-cover img{max-width:100%;border-radius:4px}
.dl-intro{background:var(--brand-l);border-left:3px solid var(--brand);padding:12px 16px;color:var(--txt-2);border-radius:0 4px 4px 0;margin-bottom:20px}

/* 资料下载条目：图片左、标题右，无摘要，下载按钮独立在最右 */
.dl-item{display:flex;align-items:center;gap:14px;padding:14px 18px}
.dl-item .dl-main{display:flex;align-items:center;gap:18px;flex:1;min-width:0;padding:0}
.dl-item .dl-thumb{flex:0 0 112px;height:76px;border-radius:4px;overflow:hidden;background:var(--bg-gray)}
.dl-item .dl-thumb img{width:100%;height:100%;object-fit:cover}
.dl-item .dl-info{flex:1;min-width:0}
.dl-item .dl-info h3{font-size:16px;font-weight:normal;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.dl-item .dl-main:hover h3{color:var(--brand)}
.dl-item .art-meta{margin-top:6px}
.dl-item .dl-btn,.dl-item .dl-none{flex:none}
.dl-box{text-align:center;margin-top:24px}

/* 关于我们 / 联系我们 */
.about-page img{border-radius:4px;margin-bottom:22px;max-height:380px;object-fit:cover;width:100%}
.about-page .rich{font-size:15px}
.contact-wrap{display:flex;gap:40px;flex:1;min-width:0;width:100%}
.contact-info{flex:0 0 360px;background:var(--brand-l);border-radius:6px;padding:28px}
.contact-info h3{color:var(--brand);font-size:20px;margin-bottom:16px;font-weight:normal}
.contact-info li{padding:9px 0;border-bottom:1px dashed rgba(37,150,182,.25);color:var(--txt-2);font-size:14px}
.contact-info b{display:inline-block;width:80px;color:var(--brand);font-weight:normal}
.contact-qr{display:flex;gap:20px;margin-top:20px;text-align:center}
.contact-qr img{width:110px;height:110px;object-fit:contain;background:#fff;padding:4px;border-radius:4px}
.contact-qr p{color:var(--txt-2);font-size:12px;margin-top:4px}
.contact-form{flex:1;background:#fff;border:1px solid var(--line);border-radius:6px;padding:28px}
.contact-form h3{font-size:18px;font-weight:normal;margin-bottom:18px;border-left:4px solid var(--brand);padding-left:12px}
.contact-form label{display:block;margin-bottom:14px;color:var(--txt-2)}
.contact-form input,.contact-form textarea{width:100%;margin-top:6px;border:1px solid var(--line);border-radius:4px;padding:10px 12px;font-size:14px;outline:none;font-family:inherit}
.contact-form input:focus,.contact-form textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(37,150,182,.12)}

/* ---------------- 分页 ---------------- */
.pager{text-align:center;margin:30px 0 10px}
.pager a{display:inline-block;min-width:34px;padding:6px 12px;border:1px solid var(--line);border-radius:4px;margin:0 4px;color:var(--txt-2);background:#fff}
.pager a.on,.pager a:hover{background:var(--brand);border-color:var(--brand);color:#fff}
.pager .dot{border:0;color:var(--txt-3);padding:0 2px;margin:0}
.pager-info{display:inline-block;margin-left:12px;font-size:13px;color:var(--txt-3)}

/* ---------------- 页脚 ---------------- */
.site-footer{background:var(--dark);color:#b9cbd3;margin-top:60px}
.foot-cols{display:flex;gap:50px;padding:48px 0 40px;flex-wrap:wrap}
.foot-col h4{color:#fff;font-size:17px;margin-bottom:16px;font-weight:normal;position:relative;padding-bottom:10px}
.foot-col h4:after{content:'';position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--brand)}
.foot-nav{display:flex;flex-wrap:wrap;gap:4px 18px;max-width:260px}
.foot-nav a{font-size:13px}
.foot-nav a:hover{color:#fff}
.foot-info li{font-size:13px;padding:3px 0}
.foot-desc{flex:1;min-width:240px}
.foot-desc p{font-size:13px;line-height:1.9}
.foot-qr{display:flex;gap:18px}
.qr{text-align:center}
.qr img{width:110px;height:110px;object-fit:contain;background:#fff;padding:5px;border-radius:4px}
.qr p{font-size:12px;margin-top:6px;color:#b9cbd3}
.copyright{border-top:1px solid rgba(255,255,255,.12);padding:16px 0;text-align:center;font-size:12px;color:#8ba3ad}
.copyright a{color:#8ba3ad}
.copyright a:hover{color:#fff}

/* ---------------- 侧边工具 ---------------- */
.side-tool{position:fixed;right:14px;bottom:120px;z-index:80}
.st-item{display:block;width:46px;height:46px;background:#fff;border:1px solid var(--line);border-radius:4px;margin-top:8px;position:relative;text-align:center;color:var(--brand);box-shadow:0 2px 8px rgba(0,0,0,.08)}
.st-item:hover{background:var(--brand);color:#fff}
.st-ico{font-size:20px;line-height:46px}
.st-pop{position:absolute;right:56px;top:0;background:var(--dark);color:#fff;font-style:normal;font-size:13px;padding:8px 14px;border-radius:4px;white-space:nowrap;opacity:0;pointer-events:none;transition:.2s}
.st-item:hover .st-pop{opacity:1}
.st-qr{padding:10px}
.st-qr img{width:110px;height:110px;object-fit:contain;background:#fff;border-radius:3px;display:block;margin-bottom:5px;color:#333}

/* ---------------- 响应式 ---------------- */
@media (max-width:960px){
  .head-inner{height:74px}
  .hotline{display:none}
  .nav-toggle{display:block}
  .mainnav{display:none}
  .mainnav.open{display:block}
  .mainnav ul{flex-direction:column}
  .nav-item>a{line-height:46px;padding:0 18px}
  .subnav{position:static;display:block;box-shadow:none;padding-left:12px}
  .slide img{height:240px}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .news-list{grid-template-columns:1fr}
  .about-inner{flex-direction:column}
  .inner{flex-direction:column}
  .side-cat{width:100%}
  .list-bar form{flex:1 1 100%;min-width:0}
  .list-bar{gap:10px}
  .pd-top{flex-direction:column;padding:18px}
  .pd-main{flex-direction:column;padding:18px}
  .pd-gallery{flex:none;width:100%;max-width:100%}
  .pd-stage{height:250px}
  .pd-block{padding:0 18px 20px}
  .pd-pager{flex-direction:column}
  .contact-wrap{flex-direction:column}
  .art-item>a{flex-direction:column}
  .art-img{flex:none;width:100%;height:180px}
  .dl-item .dl-main{flex-direction:row}
  .dl-item .dl-thumb{flex:0 0 96px;height:66px}
}

/* ================== 资料下载留资弹窗 ================== */
.dl-modal{position:fixed;inset:0;z-index:999}
.dl-modal[hidden]{display:none}
.dlm-mask{position:absolute;inset:0;background:rgba(20,30,38,.55)}
.dlm-card{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:min(420px,92vw);background:#fff;border-radius:10px;padding:26px 28px 24px;
  box-shadow:0 18px 50px rgba(0,0,0,.25);animation:dlmIn .18s ease-out}
@keyframes dlmIn{from{opacity:0;transform:translate(-50%,-46%)}to{opacity:1;transform:translate(-50%,-50%)}}
.dlm-close{position:absolute;right:10px;top:8px;border:0;background:none;font-size:26px;
  line-height:1;color:#8a97a0;cursor:pointer}
.dlm-close:hover{color:#2596B6}
.dlm-card h3{margin:0 0 8px;font-size:19px;color:#22343f}
.dlm-tip{margin:0 0 10px;font-size:12.5px;color:#7b8892;line-height:1.6}
.dlm-file{margin:0 0 14px;font-size:13px;color:#2596B6;font-weight:600;
  background:#f0f8fa;border:1px solid #d4ecf3;border-radius:6px;padding:8px 12px;
  word-break:break-all}
.dlm-card label{display:block;font-size:13px;color:#4a5a65;margin-bottom:12px}
.dlm-card input{display:block;width:100%;margin-top:5px;padding:9px 11px;font-size:14px;
  border:1px solid #d5dee3;border-radius:6px;outline:none;box-sizing:border-box}
.dlm-card input:focus{border-color:#2596B6;box-shadow:0 0 0 2px rgba(37,150,182,.15)}
.dlm-msg{margin:0 0 10px;font-size:13px;padding:7px 10px;border-radius:6px}
.dlm-msg.err{background:#fdeaea;color:#c0392b}
.dlm-msg.ok{background:#e8f7ee;color:#1e8e4e}
.dlm-btn{width:100%;padding:11px 0;border:0;border-radius:6px;background:#2596B6;
  color:#fff;font-size:15px;cursor:pointer}
.dlm-btn:hover{background:#1f83a0}
.dlm-btn:disabled{background:#9ec9d6;cursor:not-allowed}