/* ===========================================================
   江苏沪吉特钢有限公司 · 前台样式
   =========================================================== */
:root{
  --navy:#0b2545; --navy2:#123a63; --steel:#1b6ca8; --steel-l:#2f8fe0;
  --accent:#c9a227; --accent-d:#a8851a;
  --bg:#f4f6f9; --white:#fff; --line:#e3e8ee; --text:#22303f; --muted:#6b7c8f;
  --radius:6px; --shadow:0 4px 20px rgba(11,37,69,.08); --shadow-h:0 12px 32px rgba(11,37,69,.16);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:15px;line-height:1.75;color:var(--text);background:var(--bg);overflow-x:hidden}
img{max-width:100%;border:0;vertical-align:middle}
a{color:var(--text);text-decoration:none;transition:.2s}
a:hover{color:var(--steel)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0 0 .6em;font-weight:700;line-height:1.35;color:var(--navy)}
p{margin:0 0 1em}
table{border-collapse:collapse;width:100%}
input,button,textarea,select{font-family:inherit;font-size:inherit;outline:none}
.muted{color:var(--muted)}
.container{width:1200px;max-width:100%;margin:0 auto;padding:0 16px}
.clearfix::after{content:"";display:block;clear:both}

/* ---------- 顶部条 ---------- */
.topbar{background:var(--navy);color:#c3d2e2;font-size:13px;height:38px;line-height:38px}
.topbar-in{display:flex;justify-content:space-between;align-items:center}
.tb-slogan{margin:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.tb-right{display:flex;align-items:center;gap:18px;flex:0 0 auto}
.tb-item a{color:#c3d2e2}
.tb-item a:hover{color:#fff}
.tb-msg{background:rgba(255,255,255,.12);padding:0 14px;border-radius:20px;line-height:24px;color:#fff}
.tb-msg:hover{background:var(--accent);color:#fff}

/* ---------- 头部 ---------- */
.header{background:#fff;box-shadow:0 1px 0 var(--line);position:relative;z-index:60}
.header-in{display:flex;align-items:center;gap:26px;height:88px}
.logo{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.logo img{max-height:56px}
.logo-mark{width:52px;height:52px;border-radius:8px;background:linear-gradient(135deg,var(--navy2),var(--steel-l));
  color:#fff;font-weight:800;font-size:20px;display:flex;align-items:center;justify-content:center;letter-spacing:-1px;
  box-shadow:0 6px 16px rgba(27,108,168,.35)}
.logo-txt strong{display:block;font-size:20px;color:var(--navy);letter-spacing:1px}
.logo-txt em{display:block;font-style:normal;font-size:10px;letter-spacing:2px;color:var(--muted);text-transform:uppercase}
.nav{flex:1 1 auto}
.nav>ul{display:flex;align-items:center;gap:2px}
.nav>ul>li{position:relative}
.nav>ul>li>a{display:block;padding:0 16px;line-height:88px;font-size:16px;color:var(--navy);font-weight:600}
.nav>ul>li>a:hover,.nav>ul>li.on>a{color:var(--steel)}
.nav>ul>li.on>a{position:relative}
.nav>ul>li.on>a::after{content:"";position:absolute;left:16px;right:16px;bottom:20px;height:3px;background:var(--steel);border-radius:3px}
.nav .sub{position:absolute;left:-10px;top:100%;min-width:210px;background:#fff;box-shadow:var(--shadow-h);
  border-radius:var(--radius);padding:8px 0;opacity:0;visibility:hidden;transform:translateY(10px);transition:.25s;z-index:80}
.nav li.has-sub:hover .sub{opacity:1;visibility:visible;transform:translateY(0)}
.nav .sub-in{max-height:70vh;overflow:auto}
.nav .sub a{display:block;padding:10px 20px;font-size:14px;color:#33475b;border-left:3px solid transparent}
.nav .sub a:hover{background:#f3f7fb;color:var(--steel);border-left-color:var(--steel)}
.nav-toggle{display:none;background:none;border:0;font-size:24px;color:var(--navy);cursor:pointer;padding:6px 10px}
.header-tel{flex:0 0 auto;text-align:right;line-height:1.25}
.header-tel span{display:block;font-size:12px;color:var(--muted)}
.header-tel strong{font-size:22px;color:var(--steel);letter-spacing:.5px}

/* ---------- 搜索条 ---------- */
.subbar{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.subbar-in{display:flex;align-items:center;justify-content:space-between;height:52px;gap:20px}
.hot-kw{font-size:13px;color:var(--muted);overflow:hidden;white-space:nowrap}
.hot-kw b{color:var(--navy)}
.hot-kw a{color:var(--muted);margin-right:12px}
.hot-kw a:hover{color:var(--steel)}
.searchbox{display:flex;flex:0 0 340px;border:1px solid var(--line);border-radius:24px;overflow:hidden;background:#f7f9fc}
.searchbox input{flex:1;border:0;background:transparent;padding:8px 16px;font-size:14px}
.searchbox button{border:0;background:var(--steel);color:#fff;padding:8px 24px;cursor:pointer;font-weight:600}
.searchbox button:hover{background:var(--navy2)}

/* ---------- 通用区块 ---------- */
.main{min-height:400px}
.section{padding:64px 0}
.section.gray{background:#fff}
.sec-head{margin-bottom:38px}
.sec-head.center{text-align:center}
.sec-head .s-sub{display:inline-block;font-size:13px;letter-spacing:3px;color:var(--steel);text-transform:uppercase;margin-bottom:8px}
.sec-head h2{font-size:30px;margin:0 0 12px;position:relative}
.sec-head h2::after{content:"";position:absolute;left:0;bottom:-10px;width:46px;height:3px;background:var(--accent);border-radius:2px}
.sec-head.center h2::after{left:50%;transform:translateX(-50%)}
.sec-head p{color:var(--muted);margin:18px 0 0;max-width:760px}
.sec-head.center p{margin-left:auto;margin-right:auto}
.more-link{float:right;color:var(--muted);font-size:14px;margin-top:-52px}
.more-link:hover{color:var(--steel)}

.btn{display:inline-block;padding:11px 30px;border-radius:30px;background:var(--steel);color:#fff;font-weight:600;border:0;cursor:pointer;transition:.25s}
.btn:hover{background:var(--navy2);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow)}
.btn.ghost{background:transparent;border:1px solid rgba(255,255,255,.7);color:#fff}
.btn.ghost:hover{background:#fff;color:var(--navy)}
.btn.gold{background:var(--accent);color:#fff}
.btn.gold:hover{background:var(--accent-d)}

/* ---------- 轮播 ---------- */
.slider{position:relative;height:480px;overflow:hidden;background:var(--navy)}
.slider .slides{position:absolute;inset:0}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .9s ease;background-size:cover;background-position:center}
.slide.on{opacity:1}
.slide::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(8,26,46,.9) 0%,rgba(11,37,69,.7) 45%,rgba(11,37,69,.15) 100%)}
.slide-in{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;max-width:660px;color:#fff}
.slide-in .k{display:inline-block;font-size:13px;letter-spacing:4px;color:var(--accent);margin-bottom:14px}
.slide-in h2{color:#fff;font-size:42px;margin:0 0 16px;text-shadow:0 3px 20px rgba(0,0,0,.35)}
.slide-in p{color:#d5e2ef;font-size:17px;margin:0 0 28px}
.slide-in .btns{display:flex;gap:14px;flex-wrap:wrap}
.slider-dots{position:absolute;left:0;right:0;bottom:22px;text-align:center;z-index:5}
.slider-dots i{display:inline-block;width:34px;height:4px;margin:0 5px;background:rgba(255,255,255,.35);border-radius:3px;cursor:pointer;transition:.3s}
.slider-dots i.on{background:var(--accent);width:48px}
.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:5;width:46px;height:76px;background:rgba(255,255,255,.12);
  color:#fff;border:0;cursor:pointer;font-size:22px;transition:.25s}
.slider-arrow:hover{background:var(--steel)}
.slider-arrow.prev{left:0}.slider-arrow.next{right:0}

/* ---------- 优势 ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.adv{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px 26px;text-align:center;transition:.3s;position:relative;overflow:hidden}
.adv::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:linear-gradient(90deg,var(--steel),var(--accent));transform:scaleX(0);transform-origin:left;transition:.35s}
.adv:hover{transform:translateY(-6px);box-shadow:var(--shadow-h);border-color:transparent}
.adv:hover::before{transform:scaleX(1)}
.adv i{display:flex;align-items:center;justify-content:center;width:64px;height:64px;margin:0 auto 18px;border-radius:50%;
  background:linear-gradient(135deg,#eaf2fa,#d7e8f7);color:var(--steel);font-size:28px;font-style:normal}
.adv h3{font-size:18px;margin:0 0 10px}
.adv p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.8}

/* ---------- 数字 ---------- */
.stats{background:linear-gradient(120deg,var(--navy) 0%,var(--navy2) 60%,#1b4f80 100%);padding:44px 0;position:relative;overflow:hidden}
.stats::after{content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border:40px solid rgba(255,255,255,.05);border-radius:50%}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;z-index:2}
.stat{text-align:center;color:#fff}
.stat b{display:block;font-size:40px;color:var(--accent);font-weight:800;line-height:1.1}
.stat b em{font-style:normal;font-size:16px;margin-left:2px}
.stat span{font-size:14px;color:#c3d6e8}

/* ---------- 分类导航卡 ---------- */
.catnav{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.catnav a{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 10px;text-align:center;font-weight:600;font-size:14px;color:var(--navy);transition:.25s}
.catnav a:hover{background:var(--navy);color:#fff;border-color:var(--navy);transform:translateY(-4px);box-shadow:var(--shadow)}

/* ---------- 产品卡 ---------- */
.pgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.pcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.3s;display:flex;flex-direction:column}
.pcard:hover{transform:translateY(-6px);box-shadow:var(--shadow-h);border-color:transparent}
.pcard .ph{position:relative;padding-top:74%;background:linear-gradient(135deg,#eef3f8,#dde7f1);overflow:hidden}
.pcard .ph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:.5s}
.pcard:hover .ph img{transform:scale(1.06)}
.pcard .ph .ph-txt{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;
  color:rgba(27,108,168,.42);letter-spacing:2px;text-align:center;padding:0 14px;line-height:1.4}
.pcard .tag{position:absolute;left:0;top:12px;background:var(--accent);color:#fff;font-size:12px;padding:3px 12px;border-radius:0 20px 20px 0}
.pcard .pc-body{padding:18px;flex:1;display:flex;flex-direction:column}
.pcard h3{font-size:16px;margin:0 0 10px;line-height:1.5;min-height:48px}
.pcard .pc-meta{font-size:13px;color:var(--muted);margin:0 0 14px;flex:1}
.pcard .pc-meta span{display:inline-block;margin-right:10px;background:#f2f6fa;border-radius:3px;padding:1px 8px;margin-bottom:5px}
.pcard .pc-foot{display:flex;align-items:center;justify-content:space-between;border-top:1px dashed var(--line);padding-top:12px}
.pcard .pc-price{color:#d4380d;font-weight:700;font-size:15px}
.pcard .pc-btn{background:var(--steel);color:#fff;font-size:13px;padding:5px 16px;border-radius:20px}
.pcard .pc-btn:hover{background:var(--navy2);color:#fff}

/* ---------- 产品分组 ---------- */
.groups{display:flex;flex-direction:column;gap:34px}
.gsec{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.gsec-hd{display:flex;align-items:center;justify-content:space-between;padding:16px 22px;background:linear-gradient(90deg,#f7fafd,#fff);border-bottom:1px solid var(--line)}
.gsec-hd h3{margin:0;font-size:20px;display:flex;align-items:center;gap:10px}
.gsec-hd h3::before{content:"";width:4px;height:20px;background:var(--steel);border-radius:2px}
.gsec-hd .gmore{font-size:13px;color:var(--muted)}
.gsec-bd{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.gitem{padding:20px;border-right:1px solid var(--line);transition:.25s}
.gitem:last-child{border-right:0}
.gitem:hover{background:#f8fbfe}
.gitem .gi-th{height:120px;background:linear-gradient(135deg,#eef3f8,#dde7f1);border-radius:4px;display:flex;align-items:center;justify-content:center;
  color:rgba(27,108,168,.4);font-weight:700;font-size:17px;margin-bottom:12px;overflow:hidden;text-align:center;padding:0 10px}
.gitem .gi-th img{width:100%;height:100%;object-fit:cover;border-radius:4px}
.gitem h4{font-size:15px;margin:0 0 8px;line-height:1.5}
.gitem p{font-size:13px;color:var(--muted);margin:0;line-height:1.7;height:44px;overflow:hidden}

/* ---------- 关于我们 ---------- */
.about-wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:52px;align-items:center}
.about-media{position:relative;border-radius:var(--radius);overflow:hidden;min-height:340px;
  background:linear-gradient(135deg,var(--navy),var(--navy2) 60%,#1e5b93);display:flex;align-items:center;justify-content:center}
.about-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.about-media .am-ph{color:rgba(255,255,255,.9);text-align:center;z-index:2;padding:30px}
.about-media .am-ph b{display:block;font-size:30px;letter-spacing:2px}
.about-media .am-ph span{font-size:13px;letter-spacing:4px;color:var(--accent)}
.about-txt h2{font-size:28px;margin:0 0 8px}
.about-txt .a-sub{color:var(--steel);font-weight:600;margin:0 0 18px}
.about-txt p{color:#4a5b6d;font-size:14.5px}
.about-points{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:22px 0 26px}
.about-points li{background:#f4f8fc;border-left:3px solid var(--steel);padding:9px 14px;font-size:13.5px;border-radius:0 4px 4px 0}

/* ---------- 业务流程 ---------- */
.flow{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.flow::before{content:"";position:absolute;left:8%;right:8%;top:34px;height:2px;background:repeating-linear-gradient(90deg,var(--line) 0 8px,transparent 8px 16px)}
.flow-step{position:relative;text-align:center;background:#fff;padding:0}
.flow-step .fs-num{width:68px;height:68px;margin:0 auto 16px;border-radius:50%;background:#fff;border:2px solid var(--line);
  color:var(--steel);font-size:22px;font-weight:800;display:flex;align-items:center;justify-content:center;position:relative;z-index:2;transition:.3s}
.flow-step:hover .fs-num{background:var(--steel);color:#fff;border-color:var(--steel);transform:scale(1.06)}
.flow-step h4{font-size:16px;margin:0 0 8px}
.flow-step p{font-size:13px;color:var(--muted);margin:0;line-height:1.7}

/* ---------- 新闻 ---------- */
.news-cols{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.ncol{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.ncol-hd{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.ncol-hd h3{margin:0;font-size:17px;position:relative;padding-left:12px}
.ncol-hd h3::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:16px;background:var(--accent);border-radius:2px}
.ncol-hd a{font-size:12.5px;color:var(--muted)}
.ncol-bd{padding:8px 20px 18px;flex:1}
.ncol-feat{display:block;padding:14px 0 12px;border-bottom:1px solid var(--line)}
.ncol-feat h4{margin:0 0 6px;font-size:16.5px;line-height:1.5;transition:.2s}
.ncol-feat:hover h4{color:var(--steel)}
.ncol-feat p{margin:0 0 8px;font-size:13.5px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ncol-feat time{font-size:12.5px;color:#9aa9b8}
.nlist li{display:flex;align-items:flex-start;gap:10px;padding:11px 0;border-bottom:1px dashed #eef2f6;font-size:14px}
.nlist li:last-child{border-bottom:0}
.nlist li i{flex:0 0 20px;height:20px;background:#eef4fa;color:var(--steel);font-size:11px;font-style:normal;
  border-radius:3px;display:flex;align-items:center;justify-content:center;margin-top:4px}
.nlist li a{flex:1;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;line-height:1.6}
.nlist li a:hover{color:var(--steel)}
.nlist li time{flex:0 0 auto;color:#9aa9b8;font-size:12.5px}

/* ---------- 常见问题 ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 22px;display:flex;gap:14px;transition:.25s}
.faq-item:hover{box-shadow:var(--shadow);border-color:#cfe0f0}
.faq-item b{flex:0 0 26px;height:26px;border-radius:4px;background:var(--steel);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px}
.faq-item h4{font-size:15px;margin:0 0 6px;line-height:1.5}
.faq-item p{font-size:13px;color:var(--muted);margin:0;line-height:1.7}

/* ---------- 询价 CTA ---------- */
.cta{background:linear-gradient(90deg,var(--navy2),var(--steel));padding:40px 0;color:#fff}
.cta-in{display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap}
.cta h3{margin:0 0 6px;color:#fff;font-size:24px}
.cta p{margin:0;color:#cfe0ef;font-size:14px}
.cta .cta-btns{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.cta .cta-tel{font-size:26px;font-weight:800;color:#ffe08a;letter-spacing:1px}

/* ---------- 面包屑 ---------- */
.crumb{background:#fff;border-bottom:1px solid var(--line);padding:14px 0;font-size:13.5px;color:var(--muted)}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--steel)}
.crumb span.sep{margin:0 8px;color:#c3ccd6}
.crumb b{color:var(--navy);font-weight:600}

/* 内页头图 */
.page-hd{background:linear-gradient(120deg,var(--navy) 0%,var(--navy2) 55%,#1e5b93 100%);padding:56px 0;color:#fff;position:relative;overflow:hidden}
.page-hd::after{content:"";position:absolute;right:-60px;bottom:-90px;width:280px;height:280px;border:36px solid rgba(255,255,255,.06);border-radius:50%}
.page-hd h1{color:#fff;font-size:32px;margin:0 0 10px}
.page-hd p{margin:0;color:#c6d8e9;font-size:14px;max-width:820px}

/* ---------- 列表布局 ---------- */
.layout{display:grid;grid-template-columns:250px 1fr;gap:28px;align-items:start}
.side{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.side+.side{margin-top:20px}
.side-hd{background:var(--navy);color:#fff;padding:14px 18px;font-size:16px;font-weight:700}
.side-bd{padding:10px 0}
.side-cats a{display:block;padding:11px 20px;font-size:14px;border-left:3px solid transparent;color:#3c4d5e}
.side-cats a:hover,.side-cats a.on{background:#f3f8fc;color:var(--steel);border-left-color:var(--steel)}
.side-news li{padding:12px 18px;border-bottom:1px dashed #eef2f6}
.side-news li:last-child{border-bottom:0}
.side-news a{font-size:13.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.6}
.side-news time{display:block;font-size:12px;color:#9aa9b8;margin-top:4px}
.side-contact{padding:20px;text-align:center;background:#f7fafd}
.side-contact .sc-tel{font-size:20px;font-weight:800;color:var(--steel);margin:6px 0}
.side-contact p{font-size:13px;color:var(--muted);margin:0 0 12px}

/* 分页 */
.pager{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:36px;flex-wrap:wrap}
.pager a,.pager span{min-width:38px;height:38px;line-height:36px;text-align:center;padding:0 12px;border:1px solid var(--line);
  border-radius:4px;background:#fff;font-size:14px;color:#43566a}
.pager a:hover{border-color:var(--steel);color:var(--steel)}
.pager span.cur{background:var(--steel);border-color:var(--steel);color:#fff}
.pager span.dis{color:#b9c4cf;cursor:not-allowed}
.pager .pg-info{margin-left:8px;color:var(--muted);font-size:13px;border:0;background:transparent}

/* ---------- 详情页 ---------- */
.detail{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.detail h1{font-size:26px;margin:0 0 8px}
.detail .d-sub{color:var(--muted);font-size:14px;margin:0 0 20px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.detail .d-meta{display:flex;gap:20px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-bottom:18px}
.prod-top{display:grid;grid-template-columns:420px 1fr;gap:32px;margin-bottom:28px}
.gallery{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#f8fafc}
.gallery .main-img{height:340px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#eef3f8,#dce7f1);
  color:rgba(27,108,168,.42);font-size:26px;font-weight:800;text-align:center;padding:20px}
.gallery .main-img img{width:100%;height:100%;object-fit:cover}
.thumbs{display:flex;gap:8px;padding:10px;background:#fff;flex-wrap:wrap}
.thumbs img{width:60px;height:60px;object-fit:cover;border:1px solid var(--line);border-radius:3px;cursor:pointer}
.prod-info h1{font-size:24px;margin:0 0 12px}
.prod-info .pi-price{background:#fff7f4;border:1px solid #ffe0d3;border-radius:4px;padding:14px 18px;margin-bottom:18px}
.prod-info .pi-price b{color:#d4380d;font-size:26px;font-weight:800}
.prod-info .pi-price span{color:var(--muted);font-size:13px;margin-left:10px}
.prod-attr{width:100%;font-size:14px}
.prod-attr th{width:96px;background:#f5f8fb;color:var(--muted);font-weight:400;text-align:left;padding:9px 12px;border:1px solid var(--line)}
.prod-attr td{padding:9px 12px;border:1px solid var(--line)}
.prod-btns{display:flex;gap:14px;margin-top:22px;flex-wrap:wrap}

.article-body{font-size:15.5px;line-height:2;color:#2c3a48}
.article-body h2{font-size:20px;margin:32px 0 14px;padding-left:12px;border-left:4px solid var(--steel)}
.article-body h3{font-size:17px;margin:24px 0 12px;color:var(--navy2)}
.article-body p{margin:0 0 16px}
.article-body ul,.article-body ol{margin:0 0 16px;padding-left:22px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:8px}
.article-body img{border-radius:4px;margin:10px 0}
.article-body table{margin:16px 0;font-size:14.5px}
.article-body table th,.article-body table td{border:1px solid var(--line);padding:10px 14px}
.article-body table th{background:#f5f8fb;text-align:left;width:130px;color:var(--navy)}
.article-body blockquote{background:#f6f9fc;border-left:4px solid var(--accent);padding:12px 18px;margin:16px 0;color:#4a5b6d}
.article-body a{color:var(--steel);text-decoration:underline}

/* 上下页 */
.pn{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:28px 0 0}
.pn a{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 18px;font-size:14px;transition:.25s}
.pn a:hover{border-color:var(--steel);box-shadow:var(--shadow)}
.pn a span{display:block;color:var(--muted);font-size:12.5px;margin-bottom:4px}
.pn a b{font-weight:600;color:var(--navy);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.pn .pn-next{text-align:right}

/* ---------- 表格 / 表单 ---------- */
.form-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.form-box .frow{display:flex;gap:16px;margin-bottom:16px;flex-wrap:wrap}
.form-box .frow .fitem{flex:1;min-width:220px}
.form-box label{display:block;font-size:13.5px;color:#43566a;margin-bottom:6px}
.form-box label em{color:#d4380d;font-style:normal}
.form-box input[type=text],.form-box input[type=tel],.form-box input[type=email],.form-box select,.form-box textarea{
  width:100%;border:1px solid var(--line);border-radius:4px;padding:11px 14px;background:#fbfcfe;transition:.2s}
.form-box input:focus,.form-box select:focus,.form-box textarea:focus{border-color:var(--steel);background:#fff;box-shadow:0 0 0 3px rgba(27,108,168,.08)}
.form-box textarea{min-height:130px;resize:vertical}
.alert{padding:12px 18px;border-radius:4px;margin-bottom:20px;font-size:14px}
.alert.ok{background:#f0f9f2;border:1px solid #c8e6cd;color:#2a7d43}
.alert.err{background:#fef5f4;border:1px solid #f6d0ca;color:#c0392b}

/* ---------- 留言页 ---------- */
.msg-wrap{display:grid;grid-template-columns:1fr 380px;gap:30px;align-items:start}
.contact-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed #eef2f6}
.contact-list li:last-child{border-bottom:0}
.contact-list i{flex:0 0 44px;height:44px;border-radius:50%;background:#eef4fa;color:var(--steel);display:flex;align-items:center;justify-content:center;font-size:19px;font-style:normal}
.contact-list b{display:block;font-size:13px;color:var(--muted);font-weight:400}
.contact-list strong{font-size:15.5px;color:var(--navy)}

/* ---------- 站点地图 ---------- */
.map-sec{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin-bottom:22px}
.map-sec h3{margin:0 0 14px;font-size:17px;border-left:4px solid var(--steel);padding-left:12px}
.map-list{display:grid;grid-template-columns:repeat(4,1fr);gap:8px 18px}
.map-list a{font-size:13.5px;color:#43566a;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.map-list a:hover{color:var(--steel)}

/* ---------- 页脚 ---------- */
.footer{background:var(--navy);color:#a9bdd1;font-size:13.5px;margin-top:0}
.foot-top{padding:52px 0 40px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.foot-col h4{color:#fff;font-size:16px;margin:0 0 18px;position:relative;padding-bottom:12px}
.foot-col h4::after{content:"";position:absolute;left:0;bottom:0;width:30px;height:2px;background:var(--accent)}
.foot-col p{line-height:1.9;color:#93a9c0}
.foot-col ul li{margin-bottom:10px}
.foot-col ul a{color:#a9bdd1}
.foot-col ul a:hover{color:#fff}
.foot-contact li{line-height:1.9}
.foot-contact a{color:#dce8f4}
.foot-qr{text-align:left}
.qr{width:110px;height:110px;background:#fff;padding:6px;border-radius:4px}
.qr-ph{width:110px;height:110px;background:rgba(255,255,255,.08);border:1px dashed rgba(255,255,255,.25);border-radius:4px;
  display:flex;align-items:center;justify-content:center;color:#7d95ae;font-size:13px}
.foot-tel{font-size:22px;color:var(--accent);font-weight:800;margin:12px 0 0}
.foot-links{background:rgba(0,0,0,.18);padding:16px 0;font-size:13px;line-height:2}
.foot-links b{color:#fff}
.foot-links a{color:#a9bdd1;margin-right:16px}
.foot-links a:hover{color:#fff}
.foot-bot{border-top:1px solid rgba(255,255,255,.08);padding:16px 0;text-align:center;font-size:13px}
.foot-bot a{color:#a9bdd1}
.foot-bot a:hover{color:#fff}

/* ---------- 浮动条 ---------- */
.floatbar{position:fixed;right:16px;bottom:110px;z-index:90;display:flex;flex-direction:column;gap:8px}
.fb-item{width:52px;height:52px;background:var(--navy);color:#fff;border-radius:8px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;font-size:11px;box-shadow:var(--shadow);transition:.25s}
.fb-item i{font-style:normal;font-size:18px;line-height:1}
.fb-item:hover{background:var(--steel);color:#fff;transform:translateX(-3px)}
.fb-tel{background:var(--accent)}
.fb-tel:hover{background:var(--accent-d)}
.mobile-cta{display:none}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .container{width:100%}
  .pgrid,.gsec-bd,.adv-grid,.stats-grid{grid-template-columns:repeat(2,1fr)}
  .catnav{grid-template-columns:repeat(3,1fr)}
  .prod-top{grid-template-columns:1fr}
  .gallery .main-img{height:260px}
}
@media (max-width:992px){
  .header-in{height:70px;gap:12px}
  .nav-toggle{display:block;order:3}
  .nav{position:absolute;left:0;right:0;top:100%;background:#fff;box-shadow:var(--shadow-h);display:none;order:4;border-top:1px solid var(--line)}
  .nav.open{display:block}
  .nav>ul{display:block}
  .nav>ul>li>a{line-height:50px;padding:0 20px;border-bottom:1px solid var(--line);font-size:15px}
  .nav>ul>li.on>a::after{display:none}
  .nav .sub{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;padding:0;background:#f7fafd;display:none}
  .nav li.has-sub.open .sub{display:block}
  .nav .sub a{padding-left:36px;font-size:13.5px}
  .header-tel{display:none}
  .subbar{display:none}
  .slider{height:400px}
  .slide-in h2{font-size:30px}
  .slide-in p{font-size:15px}
  .section{padding:44px 0}
  .sec-head h2{font-size:24px}
  .news-cols,.faq-grid,.about-wrap,.flow,.layout,.msg-wrap,.foot-grid{grid-template-columns:1fr}
  .flow::before{display:none}
  .flow-step{display:flex;gap:16px;text-align:left;align-items:flex-start;background:#fff;padding:14px;border:1px solid var(--line);border-radius:4px}
  .flow-step .fs-num{flex:0 0 52px;width:52px;height:52px;margin:0;font-size:18px}
  .about-wrap{gap:28px}
  .foot-grid{gap:28px}
  .floatbar{display:none}
  .mobile-cta{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:95;background:#fff;box-shadow:0 -2px 12px rgba(0,0,0,.1)}
  .mobile-cta a{flex:1;text-align:center;padding:12px 0;font-size:13px;border-right:1px solid var(--line)}
  .mobile-cta a:last-child{border-right:0}
  .mobile-cta .mc-tel{background:var(--accent);color:#fff;font-weight:600}
  body{padding-bottom:46px}
  .map-list{grid-template-columns:repeat(2,1fr)}
  .pn{grid-template-columns:1fr}
  .pn .pn-next{text-align:left}
}
@media (max-width:640px){
  .slider{height:340px}
  .slide-in h2{font-size:24px}
  .slide-in .btns .btn{padding:9px 20px;font-size:14px}
  .pgrid,.gsec-bd,.adv-grid,.stats-grid,.catnav,.about-points,.map-list{grid-template-columns:1fr 1fr}
  .catnav{grid-template-columns:1fr 1fr}
  .detail{padding:18px}
  .detail h1{font-size:21px}
  .tb-slogan{display:none}
  .topbar-in{justify-content:center}
  .sec-head h2{font-size:21px}
  .stat b{font-size:30px}
  .page-hd{padding:36px 0}
  .page-hd h1{font-size:23px}
}
@media (max-width:400px){
  .pgrid,.catnav{grid-template-columns:1fr}
}