/* =========================================================
   Globeqflow · Global E-Chain — site.css
   品牌色：深蓝 #0E3A8C / 青色 #00A7C3 / 墨 #16202E
   规范：响应式 · 吸顶导航+scroll-margin-top · 渐进增强揭示动画
   WCAG AA 对比度（次要文字 #4B5563 on #FFF ≈ 7:1）
   ========================================================= */
:root{
  --brand:#0E3A8C;
  --brand-2:#00A7C3;
  --brand-dark:#0A2C66;
  --cyan:#00A7C3;
  --ink:#16202E;
  --muted:#4B5563;
  --bg:#FFFFFF;
  --soft:#F3F6FB;
  --soft-2:#EAF1F8;
  --line:#E2E8F0;
  --gold:#C9920A;
  --ok:#0F8A5F;
  --warn:#B45309;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 10px 30px rgba(14,58,140,.10);
  --shadow-sm:0 4px 14px rgba(14,58,140,.08);
  --maxw:1180px;
  --nav-h:88px;
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 12px);-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
  line-height:1.75;font-size:17px;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.25;color:var(--ink);margin:0 0 .5em;font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(30px,4.2vw,50px)}
h2{font-size:clamp(26px,3.2vw,38px)}
h3{font-size:clamp(19px,2.1vw,24px)}
p{margin:0 0 1em}
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.section{padding:64px 0}
.section + .section{border-top:1px solid var(--line)}
.section.soft{background:#EAF2FB}
.section.brandbg{background:linear-gradient(135deg,var(--brand),#0b5a6e);color:#fff}
.section.brandbg h2,.section.brandbg h3{color:#fff}
.muted{color:var(--muted)}
.center{text-align:center}
.eyebrow{display:inline-block;font-size:14px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--brand-2);margin-bottom:10px}
.lead{font-size:clamp(16.5px,1.7vw,21px);color:var(--muted);max-width:760px}
.center .lead{margin-left:auto;margin-right:auto}

/* ---------- 布局工具 ---------- */
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.cols-2{grid-template-columns:1.1fr .9fr}
@media(max-width:900px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}.cols-2{grid-template-columns:1fr}}
@media(max-width:620px){.grid-2,.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.section[data-sec="products"] .grid-2{grid-template-columns:1fr}}
@media(max-width:620px){.section[data-sec="strengths"] .grid{grid-template-columns:1fr}}
@media(max-width:620px){body.page-about .grid{grid-template-columns:1fr}body.page-about .grid.duo{grid-template-columns:repeat(2,1fr)}body.page-about .grid.duo>.card:last-child:nth-child(odd){grid-column:1/-1}}
@media(max-width:359px){body.page-about .grid.duo{grid-template-columns:1fr}}
@media(max-width:359px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

/* ---------- 卡片 ---------- */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s,border-color .2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfe0f2}
.card .ic{width:52px;height:52px;border-radius:12px;display:grid;place-items:center;background:var(--soft-2);color:var(--brand);margin-bottom:14px}
.card h3{font-size:20px;margin-bottom:8px}
.card p{color:var(--muted);font-size:16px;margin:0}
.tag{display:inline-block;font-size:13px;font-weight:700;color:var(--brand);background:var(--soft-2);border-radius:999px;padding:4px 12px;margin:0 6px 6px 0}

/* 视觉占位（产品/行业），自包含无外链图 */
.visual{position:relative;border-radius:var(--radius);overflow:hidden;min-height:180px;display:flex;align-items:flex-end;
  background:linear-gradient(135deg,var(--brand),#0c6f86);color:#fff}
.visual .vlabel{position:relative;z-index:2;padding:18px 20px;font-weight:700;font-size:18px}
.visual .vsub{display:block;font-weight:500;font-size:14px;opacity:.85;margin-top:4px}
.visual::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);background-size:18px 18px;opacity:.5}
.visual .vno{position:absolute;top:14px;right:18px;font-size:30px;font-weight:800;color:rgba(255,255,255,.35);z-index:2}
@media(max-width:620px){.visual{min-height:150px}}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15.5px;padding:12px 22px;border-radius:999px;white-space:nowrap;border:2px solid transparent;cursor:pointer;transition:.18s}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);text-decoration:none}
.btn-cyan{background:var(--cyan);color:#fff}
.btn-cyan:hover{background:#0090a8;text-decoration:none}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.12);text-decoration:none}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--line)}
.btn-outline:hover{border-color:var(--brand);text-decoration:none}
.btn-lg{padding:15px 30px;font-size:16.5px}

/* ---------- 顶部导航 ---------- */
.nav{position:sticky;top:0;z-index:50;height:var(--nav-h);background:rgba(255,255,255,.92);backdrop-filter:saturate(160%) blur(10px);border-bottom:1px solid var(--line)}
.nav .row{height:var(--nav-h);display:flex;align-items:center;justify-content:space-between;gap:14px}
.brand{display:flex;align-items:center;gap:12px;white-space:nowrap}
.brand img{height:54px;width:auto}
.brand-logo{height:54px;width:auto}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-cn{font-weight:800;color:var(--brand);font-size:20px;letter-spacing:.02em}
.brand-en{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--brand-2);text-transform:uppercase;margin-top:2px}
.brand .bname{font-weight:800;color:var(--brand);font-size:18px;letter-spacing:.02em}
@media(max-width:380px){.brand-en{display:none}}
.navcollapse{display:flex;align-items:center;gap:10px;margin-left:auto}
.navlinks{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.navlinks a{display:block;padding:9px 13px;border-radius:8px;color:var(--ink);font-weight:600;font-size:16px}
.navlinks a:hover{background:var(--soft);text-decoration:none}
.navlinks a.active{color:var(--brand);background:var(--soft-2)}
.lang{position:relative;margin-left:6px}
.lang-btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:9px;padding:8px 13px;font-size:15px;font-weight:600;cursor:pointer;line-height:1;font-family:inherit}
.lang-btn:hover{border-color:var(--brand);color:var(--brand)}
.lang-ico{font-size:15px;line-height:1}
.lang-chev{font-size:10px;line-height:1;transition:transform .2s ease}
.lang.open .lang-chev{transform:rotate(180deg)}
.lang-menu{position:absolute;top:calc(100% + 8px);right:0;min-width:148px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:6px;opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .18s ease,transform .18s ease,visibility .18s ease;z-index:60}
.lang.open .lang-menu{opacity:1;visibility:visible;transform:translateY(0)}
.lang-menu a{display:flex;align-items:center;gap:8px;padding:9px 12px;border-radius:8px;color:var(--ink);font-weight:600;font-size:15px}
.lang-menu a:hover{background:var(--soft);text-decoration:none}
.lang-menu a.cur{color:var(--brand);background:var(--soft-2)}
/* 询盘 CTA 按钮 */
.nav-cta{display:inline-flex;align-items:center;gap:7px;margin-left:8px;padding:11px 19px;border-radius:10px;background:linear-gradient(135deg,var(--brand),#1457c4);color:#fff;font-size:15.5px;font-weight:700;line-height:1;white-space:nowrap;box-shadow:0 4px 14px rgba(14,58,140,.24);transition:transform .18s ease,box-shadow .18s ease,filter .18s ease}
.nav-cta:hover{color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 7px 20px rgba(14,58,140,.3);filter:brightness(1.06)}
.nav-cta:active{transform:translateY(0)}
.nav-cta-ico{font-size:14px;line-height:1;transition:transform .18s ease}
.nav-cta:hover .nav-cta-ico{transform:translateX(3px)}
.navtoggle{display:none;background:none;border:1px solid var(--line);border-radius:9px;padding:8px 10px;cursor:pointer}
.navtoggle span{display:block;width:20px;height:2px;background:var(--ink);margin:4px 0}
@media(max-width:860px){
  .navtoggle{display:block}
  .navcollapse{position:absolute;top:var(--nav-h);left:0;right:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow);display:none;flex-direction:column;padding:8px 14px}
  .navcollapse.open{display:flex}
  .navlinks{flex-direction:column;align-items:stretch;width:100%;gap:2px}
  .navlinks a{padding:12px 10px}
  .lang{margin:8px 0 4px;align-self:flex-start}
  .lang-menu{left:0;right:auto}
  .nav-cta{margin:10px 0 6px;width:100%;justify-content:center;padding:13px 18px;font-size:16px}
}

/* ---------- Hero 轮播 ---------- */
.hero{position:relative;color:#fff;background:linear-gradient(135deg,var(--brand),#0b5a6e);overflow:hidden}
.hero .slides{position:absolute;inset:0}
.hero .slide{position:absolute;inset:0;background-size:cover;background-position:center 38%;opacity:0;transition:opacity 1.1s ease;z-index:0}
.hero .slide.active{opacity:1}
.hero .overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,24,60,.86),rgba(8,24,60,.68) 55%,rgba(8,24,60,.58));z-index:1}
.hero .inner{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:62px 22px 56px}
.hero h1{color:#fff;max-width:22ch;font-size:clamp(27px,3.4vw,42px);text-shadow:0 2px 18px rgba(4,12,32,.55)}
.hero p.lead{color:#eaf2fb;font-size:clamp(15px,1.4vw,18px);max-width:62ch;margin-bottom:.3em;text-shadow:0 1px 12px rgba(4,12,32,.6)}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:18px}
.hero .badges{display:flex;gap:18px;flex-wrap:wrap;margin-top:22px}
.hero .badges div{font-size:15px;color:#cfe2f2}
.hero .badges b{display:block;font-size:23px;color:#fff;line-height:1.1}
.hero-dots{display:flex;gap:10px;margin-top:18px}
.hero-dots .dot{width:12px;height:12px;border-radius:999px;border:2px solid rgba(255,255,255,.55);background:transparent;cursor:pointer;padding:0;transition:.2s}
.hero-dots .dot.active{background:#fff;border-color:#fff;width:30px}
.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:48px;height:48px;border-radius:50%;border:1px solid rgba(255,255,255,.4);background:rgba(8,24,60,.4);color:#fff;font-size:28px;line-height:1;cursor:pointer;display:grid;place-items:center;transition:.2s}
.hero-arrow:hover{background:rgba(8,24,60,.72)}
.hero-arrow.prev{left:18px}
.hero-arrow.next{right:18px}
@media(max-width:620px){.hero .inner{padding:48px 18px 44px}.hero-arrow{display:none}.hero .badges{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 18px}}

/* ---------- 栏目页 Banner（首页以外的各栏目） ---------- */
.page-banner{position:relative;color:#fff;overflow:hidden;background:linear-gradient(135deg,var(--brand),#0b5a6e)}
.page-banner .bg{position:absolute;inset:0;background-size:cover;background-position:center 32%;opacity:.55}
.page-banner .overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,24,60,.86),rgba(8,24,60,.52) 55%,rgba(8,24,60,.28))}
.page-banner .inner{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:70px 22px 60px}
.page-banner .breadcrumb{color:rgba(255,255,255,.85);padding:0;margin-bottom:14px}
.page-banner .breadcrumb a{color:rgba(255,255,255,.85)}
.page-banner .breadcrumb a:hover{color:#fff;text-decoration:none}
.page-banner .eyebrow{color:#7fe1f0}
.page-banner h1{color:#fff;margin:0 0 .35em;font-size:clamp(27px,3.6vw,42px)}
.page-banner p.lead{color:#e6f0fb;max-width:760px}
@media(max-width:620px){.page-banner .inner{padding:50px 18px 42px}}

/* 信任带 */
.truststrip{background:var(--brand-dark);color:#cfe0f2;padding:14px 0;font-size:15px;overflow:hidden}
.truststrip .marquee{width:100%;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}
.truststrip .marquee-track{display:flex;width:max-content;animation:trustscroll 26s linear infinite}
.truststrip:hover .marquee-track{animation-play-state:paused}
.truststrip .marquee-group{display:flex;flex:0 0 auto;gap:8px 34px;padding-right:34px;align-items:center;white-space:nowrap}
@keyframes trustscroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media(prefers-reduced-motion:reduce){.truststrip .marquee-track{animation:none}}
.truststrip b{color:#fff}

/* ---------- 步骤 / 时间轴 ---------- */
.steps{counter-reset:s}
.step{position:relative;padding-left:64px;margin-bottom:18px}
.step::before{counter-increment:s;content:counter(s,decimal-leading-zero);position:absolute;left:0;top:0;width:46px;height:46px;border-radius:12px;background:var(--brand);color:#fff;font-weight:800;display:grid;place-items:center;font-size:18px}
.step h4{margin:0 0 2px;font-size:18px}
.step p{margin:0;color:var(--muted);font-size:16px}
/* 五步闭环：一排 5 列 */
.steps.row5{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.steps.row5 .step{margin-bottom:0;padding-left:0;padding-top:58px}
.steps.row5 .step::before{left:0;top:0}
.steps.row5 .step h4{font-size:17px}
.steps.row5 .step p{font-size:14.5px;line-height:1.55}
@media(max-width:900px){
  .steps.row5{grid-template-columns:repeat(3,1fr);gap:18px 16px}
}
@media(max-width:560px){
  .steps.row5{grid-template-columns:repeat(2,1fr)}
}

/* ---------- 数据条 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;text-align:center}
.stats .num{font-size:clamp(28px,3.2vw,42px);font-weight:800;color:var(--brand)}
.stats .lab{color:var(--muted);font-size:15px;margin-top:4px}
@media(max-width:620px){.stats{grid-template-columns:repeat(2,1fr)}}

/* ---------- 表格 ---------- */
.tablewrap{overflow-x:auto}
table.tbl{width:100%;border-collapse:collapse;min-width:560px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
table.tbl th,table.tbl td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line);font-size:16px;vertical-align:top}
table.tbl thead th{background:var(--brand);color:#fff;font-weight:700;border-bottom:none}
table.tbl tbody tr:nth-child(even){background:var(--soft)}
table.tbl tbody tr:last-child td{border-bottom:none}

/* ---------- FAQ (GEO 友好) ---------- */
details.faq{border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:12px;background:#fff;overflow:hidden}
details.faq summary{cursor:pointer;padding:16px 18px;font-weight:700;font-size:17px;list-style:none;display:flex;justify-content:space-between;gap:12px;align-items:center}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";font-size:22px;color:var(--brand);font-weight:700}
details.faq[open] summary::after{content:"\2212"}
details.faq .faqbody{padding:0 18px 18px;color:var(--muted);font-size:16px;line-height:1.8}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:start}
.faq-grid details.faq{margin-bottom:0}
@media(max-width:760px){.faq-grid{grid-template-columns:repeat(2,1fr)}.faq-grid details.faq[open]{grid-column:1 / -1}}
@media(max-width:359px){.faq-grid{grid-template-columns:1fr}}

/* ---------- 表单 ---------- */
.form{display:grid;gap:14px;max-width:620px}
.form label{font-weight:600;font-size:14px;display:block;margin-bottom:6px}
.form input,.form textarea,.form select{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font:inherit;font-size:15px;background:#fff;color:var(--ink)}
.form input:focus,.form textarea:focus,.form select:focus{outline:2px solid var(--brand-2);outline-offset:1px;border-color:var(--brand-2)}
.form .row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:420px){.form .row2{grid-template-columns:1fr}}
.form .hint{font-size:13px;color:var(--muted)}
.form .note{font-size:13px;color:var(--gold);background:#fff8e8;border:1px solid #f4e2b0;border-radius:8px;padding:10px 12px}
.form-ok{display:none;background:#eafaf2;border:1px solid #b8e6cf;color:#0f7a52;border-radius:10px;padding:14px 16px;font-weight:600}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
@media(max-width:860px){.contact-grid{grid-template-columns:1fr}}
.infoitem{display:flex;gap:12px;margin-bottom:16px}
.infoitem .ic{flex:0 0 42px;height:42px;border-radius:10px;background:var(--soft-2);color:var(--brand);display:grid;place-items:center}
.infoitem b{display:block;font-size:14px;color:var(--muted);font-weight:600}
.infoitem span{font-size:16.5px}
.panel-title{font-size:20px;font-weight:800;color:var(--ink);margin:0 0 18px;padding-bottom:12px;border-bottom:2px solid var(--brand-2)}
.req-legend{font-size:12px;color:var(--muted);margin-top:10px}
.req-legend b{color:var(--brand)}
.meta-date{font-size:12px;font-weight:700;color:var(--brand-2);letter-spacing:.06em;margin-bottom:8px}
.tagrow{margin-top:14px;display:flex;flex-wrap:wrap;gap:6px}
.case h3{margin-bottom:8px}
.case p{font-size:15px}

/* ---------- 面包屑 / JSON 隐藏 ---------- */
.breadcrumb{font-size:13px;color:var(--muted);padding:16px 0 0}
.breadcrumb a{color:var(--muted)}
.kicker{font-size:13px;color:var(--brand-2);font-weight:700;letter-spacing:.08em;text-transform:uppercase}

/* ---------- 页脚 ---------- */
.foot{background:var(--brand-dark);color:#cdddf0;padding:54px 0 26px;font-size:14px}
.foot h4{color:#fff;font-size:15px;margin-bottom:12px}
.foot a{color:#cdddf0}
.foot a:hover{color:#fff}
.foot .grid-4{gap:30px}
.foot .brand{display:inline-flex;background:#fff;border-radius:12px;padding:7px 13px;box-shadow:var(--shadow-sm)}
.foot .brand img{height:42px;width:auto;filter:none}
.foot ul{list-style:none;margin:0;padding:0}
.foot ul li{margin-bottom:8px}
.foot .bot{border-top:1px solid rgba(255,255,255,.14);margin-top:34px;padding-top:18px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;color:#9fb6d4;font-size:13px}
.socials{display:flex;gap:10px}
.socials a{width:36px;height:36px;border-radius:9px;background:rgba(255,255,255,.1);display:grid;place-items:center;color:#fff}
.socials a:hover{background:var(--cyan);text-decoration:none}

/* ---------- 揭示动画（渐进增强） ---------- */
.js .rv{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.js .rv.show{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.js .rv{opacity:1!important;transform:none!important;transition:none}}

/* ---------- 区块标题 ---------- */
.sec-head{margin-bottom:34px}
.sec-head.center{text-align:center}

/* 行业色点缀 */
.ind-pv{background:linear-gradient(180deg,rgba(10,22,50,.58),rgba(10,22,50,.86)),url(../img/photo-pv.webp?v=18) center/cover no-repeat}
.ind-li{background:linear-gradient(180deg,rgba(10,22,50,.58),rgba(10,22,50,.86)),url(../img/photo-battery.webp?v=18) center/cover no-repeat}
.ind-auto{background:linear-gradient(180deg,rgba(10,22,50,.58),rgba(10,22,50,.86)),url(../img/photo-auto.webp?v=18) center/cover no-repeat}
.ind-3c{background:linear-gradient(180deg,rgba(10,22,50,.58),rgba(10,22,50,.86)),url(../img/photo-line.webp?v=18) center/cover no-repeat}
.ind-home{background:linear-gradient(180deg,rgba(10,22,50,.58),rgba(10,22,50,.86)),url(../img/line-oven.webp?v=18) center/cover no-repeat}
.ind-more{background:linear-gradient(180deg,rgba(10,22,50,.58),rgba(10,22,50,.86)),url(../img/factory-01.webp?v=18) center/cover no-repeat}

/* ---------- 图文交错 feature ---------- */
.feature{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center;margin:0 0 56px}
.feature:last-child{margin-bottom:0}
.feature .fmedia img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%;aspect-ratio:4/3;object-fit:cover;display:block}
.feature .ftext h2{font-size:26px;margin-bottom:10px}
.feature .ftext .eyebrow{display:inline-block;margin-bottom:10px}
.feature .ftext p{color:var(--muted);font-size:15.5px}
.feature .ftext .mini{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 4px}
.feature .ftext .mini span{font-size:13px;background:var(--soft-2);color:var(--brand);border-radius:999px;padding:5px 12px;font-weight:600}
.feature.reverse .fmedia{order:2}
.feature.reverse .ftext{order:1}
@media(max-width:820px){
  .feature{grid-template-columns:1fr;gap:22px;margin-bottom:42px}
  .feature.reverse .fmedia{order:0}
  .feature.reverse .ftext{order:0}
}

/* ---------- 插画媒体（行业/能力 banner） ---------- */
.illu-banner{position:relative;border-radius:var(--radius);overflow:hidden;min-height:200px;display:block}
.illu-banner img{width:100%;height:240px;object-fit:cover;display:block}
.illu-banner::after{content:"";position:absolute;left:0;right:0;bottom:0;height:60%;background:linear-gradient(to top,rgba(8,24,60,.82),rgba(8,24,60,0));pointer-events:none}
.illu-banner .cap{position:absolute;left:0;bottom:0;z-index:2;padding:14px 20px;font-weight:700;font-size:18px;color:#fff;
  background:linear-gradient(180deg,rgba(10,30,70,0),rgba(10,30,70,.78));width:100%}

/* ---------- 产线实景图集（产品页补充产品图） ---------- */
.line-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}
.line-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s,border-color .2s}
.line-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfe0f2}
.line-card .ph{aspect-ratio:4/3;overflow:hidden;background:var(--soft)}
.line-card .ph img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s ease}
.line-card:hover .ph img{transform:scale(1.04)}
.line-card .cap{padding:14px 16px 16px}
.line-card .cap .t{font-weight:700;color:var(--ink);font-size:15px;line-height:1.4}
.line-card .cap .d{color:var(--muted);font-size:13px;margin-top:5px;line-height:1.55}
.line-card .cap .tag{display:inline-block;margin-top:9px;font-size:12px;font-weight:700;color:var(--brand-2);background:var(--soft-2);padding:3px 11px;border-radius:999px}
@media(max-width:860px){.line-gallery{grid-template-columns:repeat(2,1fr)}}
@media(max-width:359px){.line-gallery{grid-template-columns:1fr}}

/* ---------- 产品中心网格（列表页，图片主导） ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}
.prod-grid a.line-card{text-decoration:none;color:inherit;display:block}
.prod-grid .cap .more{display:inline-block;margin-top:10px;font-size:12.5px;font-weight:700;color:var(--brand-2)}
.prod-grid a.line-card:hover .cap .more{text-decoration:underline}
@media(max-width:860px){.prod-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:359px){.prod-grid{grid-template-columns:1fr}}

/* ---------- 产品详情页 ---------- */
.prod-overview{display:grid;grid-template-columns:1.5fr 1fr;gap:38px;align-items:start}
.prod-overview .intro{font-size:17px;line-height:1.9;color:var(--ink);margin:0}
.prod-points{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:13px}
.prod-points li{position:relative;padding-left:30px;line-height:1.65;color:var(--ink);font-size:15px}
.prod-points li::before{content:"";position:absolute;left:0;top:7px;width:15px;height:15px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 0 4px rgba(0,167,195,.15)}
.prod-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.prod-meta .tag{font-size:13px;font-weight:700;color:var(--brand-2);background:var(--soft-2);padding:5px 13px;border-radius:999px;border:1px solid #d8e7f4}
.prod-gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:24px}
.prod-gallery figure{margin:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.prod-gallery img{width:100%;height:300px;object-fit:cover;display:block}
.prod-gallery figcaption{padding:11px 14px;font-size:13.5px;color:var(--muted)}
/* 图片数为奇数时，末图横跨整行铺满，消除右侧空白 */
.prod-gallery figure:last-child:nth-child(odd){grid-column:1 / -1}
.prod-gallery figure:last-child:nth-child(odd) img{height:340px}
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:22px}
.related-grid a{display:block;text-decoration:none;color:inherit;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:transform .2s,box-shadow .2s,border-color .2s}
.related-grid a:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfe0f2}
.related-grid .ph{aspect-ratio:4/3;overflow:hidden;background:var(--soft)}
.related-grid .ph img{width:100%;height:100%;object-fit:cover;display:block}
.related-grid .t{padding:11px 12px;font-size:14px;font-weight:700;color:var(--ink);line-height:1.4}
@media(max-width:860px){.prod-overview{grid-template-columns:1fr}.prod-gallery{grid-template-columns:1fr}.related-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:359px){.related-grid{grid-template-columns:1fr}}

/* ---------- 企业相册（瀑布流网格） ---------- */
.album-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:18px;margin-top:26px}
.album-grid figure{margin:0;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s,border-color .2s}
.album-grid figure:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cfe0f2}
.album-grid img{width:100%;height:250px;object-fit:cover;display:block;cursor:zoom-in}
.album-grid figcaption{padding:11px 14px;font-size:13.5px;color:var(--muted);line-height:1.5;flex:1}
@media(max-width:620px){.album-grid{grid-template-columns:repeat(2,1fr);gap:12px}.album-grid img{height:150px}}
@media(max-width:320px){.album-grid{grid-template-columns:1fr}.album-grid img{height:210px}}

/* ---------- 企业相册 lightbox（渐进增强） ---------- */
.lb{position:fixed;inset:0;background:rgba(8,18,40,.92);display:none;align-items:center;justify-content:center;z-index:200;padding:24px;cursor:zoom-out}
.lb.open{display:flex}
.lb img{max-width:100%;max-height:88vh;border-radius:10px;box-shadow:0 20px 60px rgba(0,0,0,.5);display:block}
.lb .lb-cap{position:absolute;left:0;right:0;bottom:18px;text-align:center;color:#e6f0fb;font-size:14px;padding:0 20px}
.lb .lb-close{position:absolute;top:16px;right:20px;width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.14);color:#fff;border:none;font-size:22px;cursor:pointer;line-height:1}
.lb .lb-close:hover{background:rgba(255,255,255,.28)}

/* ---------- 新闻卡片（带封面图） ---------- */
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-sm);display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s,border-color .2s}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfe0f2}
.news-card .cover{aspect-ratio:16/9;overflow:hidden;background:var(--brand-dark)}
.news-card .cover img{width:100%;height:100%;object-fit:cover;display:block}
.news-card .body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.news-card .body h3{font-size:20px;margin:6px 0 8px}
.news-card .body p{color:var(--muted);font-size:15.5px;margin:0 0 14px;flex:1}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-grid.cols-3{grid-template-columns:repeat(3,1fr)}
/* 平板/大屏手机：连同 cols-3 一起降为两列，避免三列挤压 */
@media(max-width:820px){.news-grid,.news-grid.cols-3{grid-template-columns:repeat(2,1fr);gap:18px}}
/* 手机：单列 + 横向紧凑卡片（图左文右），一屏可见多张，标题不被拆碎 */
@media(max-width:620px){
  .news-grid,.news-grid.cols-3{grid-template-columns:1fr;gap:14px}
  .news-card{display:grid;grid-template-columns:36% minmax(0,1fr);align-items:stretch}
  .news-card .cover{aspect-ratio:auto;height:100%;min-height:126px}
  .news-card .cover img{height:100%;object-fit:cover}
  .news-card .body{padding:13px 15px 14px;min-width:0}
  .news-card .meta-date{font-size:11px;margin-bottom:4px;letter-spacing:.04em}
  .news-card .body h3{font-size:16.5px;line-height:1.32;margin:0 0 6px;overflow-wrap:break-word}
  .news-card .body p{font-size:13.5px;line-height:1.55;margin:0 0 8px;flex:none;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .news-card .tagrow{margin-top:auto;gap:5px}
  .news-card .tag{font-size:11px;padding:2px 8px;margin:0 4px 0 0}
  .news-card .btn{font-size:12.5px;padding:7px 12px;margin-top:8px}
}
@media(max-width:359px){
  .news-card{grid-template-columns:32% minmax(0,1fr)}
  .news-card .body h3{font-size:15px}
  .news-card .body p{font-size:12.5px}
  .news-card .tagrow{display:none}
}




/* ---------- 询盘弹窗 ---------- */
.iq{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:24px}
.iq.open{display:flex}
.iq-backdrop{position:absolute;inset:0;background:rgba(10,20,40,.62);backdrop-filter:blur(3px)}
.iq-card{position:relative;z-index:1;width:100%;max-width:640px;max-height:calc(100vh - 48px);overflow-y:auto;background:#fff;border-radius:18px;box-shadow:0 30px 80px rgba(6,16,40,.34);padding:32px 34px 30px;animation:iqIn .26s ease both}
@keyframes iqIn{from{opacity:0;transform:translateY(16px) scale(.98)}to{opacity:1;transform:none}}
.iq-close{position:absolute;top:14px;right:14px;width:38px;height:38px;border:none;border-radius:50%;background:var(--soft);color:#5b6b80;font-size:22px;line-height:1;cursor:pointer;display:grid;place-items:center;transition:.18s}
.iq-close:hover{background:var(--soft-2);color:var(--ink)}
.iq-eyebrow{font-size:13px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--brand-2);margin:0 0 8px}
.iq-card h2{font-size:clamp(21px,2.4vw,26px);color:var(--brand);margin:0 0 8px;line-height:1.3}
.iq-sub{font-size:15px;color:#5b6b80;margin:0 0 20px;line-height:1.6}
.iq-form{display:block;margin:0}
.iq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 16px;margin-bottom:14px}
.iq-grid .full{grid-column:1/-1}
.iq-form label{display:block;font-size:14px;font-weight:700;color:var(--ink);margin-bottom:6px}
.iq-form input,.iq-form select,.iq-form textarea{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:10px;font-size:15.5px;font-family:inherit;color:var(--ink);background:#fff;transition:border-color .16s,box-shadow .16s}
.iq-form input:focus,.iq-form select:focus,.iq-form textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(14,58,140,.12)}
.iq-form textarea{resize:vertical;min-height:92px}
.iq-form .btn{width:100%;justify-content:center;margin-top:4px}
.iq-ok{display:none;margin:14px 0 0;padding:13px 15px;border-radius:10px;background:#e8f7ee;color:#1a7f47;font-size:15px;font-weight:600;line-height:1.55}
.iq-ok.show{display:block}
.iq-note{font-size:13px;color:#8a97a8;margin:12px 0 0;line-height:1.55}
body.iq-lock{overflow:hidden}
@media(max-width:620px){
  .iq{padding:0}
  .iq-card{max-width:none;max-height:100%;height:100%;border-radius:0;padding:26px 20px 28px}
  .iq-grid{grid-template-columns:1fr;gap:12px}
}

/* 极老浏览器（不支持 WebP）回退 JPG 背景 */
.no-webp .ind-pv{background:linear-gradient(180deg,rgba(10,22,50,.58),rgba(10,22,50,.86)),url(../img/photo-pv.jpg?v=18) center/cover no-repeat}
.no-webp .ind-li{background:linear-gradient(180deg,rgba(10,22,50,.58),rgba(10,22,50,.86)),url(../img/photo-battery.jpg?v=18) center/cover no-repeat}
.no-webp .ind-auto{background:linear-gradient(180deg,rgba(10,22,50,.58),rgba(10,22,50,.86)),url(../img/photo-auto.jpg?v=18) center/cover no-repeat}
.no-webp .ind-3c{background:linear-gradient(180deg,rgba(10,22,50,.58),rgba(10,22,50,.86)),url(../img/photo-line.jpg?v=18) center/cover no-repeat}
.no-webp .ind-home{background:linear-gradient(180deg,rgba(10,22,50,.58),rgba(10,22,50,.86)),url(../img/line-oven.jpg?v=18) center/cover no-repeat}
.no-webp .ind-more{background:linear-gradient(180deg,rgba(10,22,50,.58),rgba(10,22,50,.86)),url(../img/factory-01.jpg?v=18) center/cover no-repeat}