/* ================= 字体 ================= */
@font-face{font-family:'HarmonyOS Sans SC';src:url('../fonts/HarmonyOS_Sans_SC_Regular.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'HarmonyOS Sans SC';src:url('../fonts/HarmonyOS_Sans_SC_Medium.woff2') format('woff2');font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:'HarmonyOS Sans SC';src:url('../fonts/HarmonyOS_Sans_SC_Bold.woff2') format('woff2');font-weight:700;font-style:normal;font-display:swap}

/* ================= 设计令牌 ================= */
:root{
  --brand:#1F5F8B;
  --brand-dark:#184D71;
  --brand-deep:#12374F;
  --accent:#C8641E;
  --ink:#16232E;
  --text:#3C4A57;
  --muted:#6C7B89;
  --line:#E2E8EE;
  --line-strong:#CBD6E0;
  --tint:#F4F7FA;
  --white:#fff;
  --shell:85vw;
  --shell-max:1500px;
  --radius:3px;
  --gap:24px;
  --shadow:0 10px 30px rgba(18,55,79,.10);
  --shadow-hover:0 16px 40px rgba(18,55,79,.16);
}

/* ================= 基础 ================= */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'HarmonyOS Sans SC','Microsoft YaHei','PingFang SC',sans-serif;
  font-size:15px;
  line-height:1.75;
  color:var(--text);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  overflow-x:clip;
}
body.is-locked{overflow:hidden}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.35;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
table{border-collapse:collapse;width:100%}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
/* 组件自带 display 会盖掉浏览器默认的 [hidden]，这里补回来 */
[hidden]{display:none !important}
.shell{width:var(--shell);max-width:var(--shell-max);margin-inline:auto}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:var(--radius);
  background:var(--brand);color:var(--white);font-weight:700;letter-spacing:.02em;
  border:1px solid var(--brand);
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.btn:hover{background:var(--brand-dark);border-color:var(--brand-dark)}
.btn:active{transform:translateY(1px)}
.btn--ghost{background:transparent;color:var(--brand-dark);border-color:var(--line-strong)}
.btn--ghost:hover{background:var(--tint);color:var(--brand-dark);border-color:var(--brand)}
.btn--accent{background:var(--accent);border-color:var(--accent)}
.btn--accent:hover{background:#A95014;border-color:#A95014}
.btn--light{background:var(--white);color:var(--brand-dark);border-color:var(--white)}
.btn--light:hover{background:#EAF1F6;border-color:#EAF1F6}

/* ================= 顶部与导航 ================= */
.topbar{background:var(--brand-deep);color:#C7DAE7;font-size:13px}
.topbar__row{display:flex;align-items:center;justify-content:space-between;gap:20px;height:38px}
.topbar__links{display:flex;align-items:center;gap:18px}
.topbar__links a:hover{color:var(--white)}
.topbar__tel{color:var(--white);font-weight:500}
.topbar__sep{width:1px;height:14px;background:rgba(255,255,255,.24)}
.nav__tel{display:none}

.masthead{position:sticky;top:0;z-index:60;background:var(--white);border-bottom:1px solid var(--line)}
.masthead__row{display:flex;align-items:center;gap:28px;height:78px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand img{width:104px}
.brand__text{display:flex;flex-direction:column;line-height:1.3;padding-left:12px;border-left:1px solid var(--line)}
.brand__name{font-weight:700;color:var(--ink);font-size:16px}
.brand__slogan{font-size:12px;color:var(--muted)}

.nav{margin-left:auto}
.nav__list{display:flex;align-items:center}
.nav__item{position:relative}
.nav__link{display:block;padding:0 20px;height:78px;line-height:78px;font-weight:500;color:var(--ink);white-space:nowrap;position:relative}
.nav__link::after{content:"";position:absolute;left:20px;right:20px;bottom:-1px;height:3px;background:var(--brand);transform:scaleX(0);transition:transform .22s ease}
.nav__item:hover .nav__link,.nav__item.is-current .nav__link{color:var(--brand)}
.nav__item:hover .nav__link::after,.nav__item.is-current .nav__link::after{transform:scaleX(1)}

.megamenu{
  position:absolute;left:50%;top:78px;transform:translateX(-50%);
  width:min(1080px,88vw);background:var(--white);border:1px solid var(--line);
  border-top:2px solid var(--brand);box-shadow:var(--shadow);padding:22px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:8px;
  opacity:0;visibility:hidden;translate:0 8px;transition:opacity .2s ease,translate .2s ease,visibility .2s;
}
.nav__item:hover .megamenu,.megamenu:hover{opacity:1;visibility:visible;translate:0 0}
.megamenu a{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid transparent;line-height:1.4}
.megamenu a:hover{background:var(--tint);border-color:var(--line);color:var(--brand)}
.megamenu img{width:30px;height:30px;opacity:.75}
.megamenu a:hover img{opacity:1}
.megamenu strong{font-weight:500;font-size:14px}

.hotline{display:flex;align-items:center;gap:10px;padding-left:24px;border-left:1px solid var(--line);flex-shrink:0}
.hotline img{width:26px;height:26px}
.hotline span{display:block;font-size:12px;color:var(--muted);line-height:1.4}
.hotline b{display:block;font-size:18px;color:var(--brand-dark);line-height:1.2;white-space:nowrap}
.navtoggle{display:none;width:44px;height:44px;margin-left:auto;flex-direction:column;justify-content:center;gap:5px}
.navtoggle span{display:block;height:2px;background:var(--ink);transition:transform .2s ease,opacity .2s ease}
.navtoggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.navtoggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.navtoggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ================= 首页大图 ================= */
.hero{position:relative;min-height:540px;display:flex;align-items:center;background:#0E2432;overflow:hidden}
.hero__bg{position:absolute;inset:0}
.hero__bg img{width:100%;height:100%;object-fit:cover}
.hero__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(11,32,45,.92) 0%,rgba(11,32,45,.72) 42%,rgba(11,32,45,.28) 100%)}
.hero__row{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:48px;align-items:center;padding:72px 0}
.hero__kicker{display:inline-flex;align-items:center;gap:10px;color:#8FC4E4;font-weight:500;letter-spacing:.08em;font-size:13px}
.hero__kicker::before{content:"";width:32px;height:2px;background:var(--accent)}
.hero__title{margin-top:16px;font-size:clamp(30px,3.4vw,48px);line-height:1.2;color:var(--white)}
.hero__desc{margin-top:18px;max-width:640px;color:#D6E5EF;font-size:17px}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.hero__panel{border:1px solid rgba(255,255,255,.22);background:rgba(9,29,42,.55);backdrop-filter:blur(2px)}
.hero__panel h2{padding:16px 20px;font-size:16px;color:var(--white);border-bottom:1px solid rgba(255,255,255,.18)}
.hero__panel ul{padding:8px 20px 18px}
.hero__panel li{display:flex;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.16);color:#CFE0EB;font-size:14px}
.hero__panel li:last-child{border-bottom:0}
.hero__panel li b{color:var(--white);font-weight:500}

/* ================= 内页短banner ================= */
.pagehead{position:relative;background:#12374F;overflow:hidden}
.pagehead__bg{position:absolute;inset:0}
.pagehead__bg img{width:100%;height:100%;object-fit:cover}
.pagehead__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(12,42,60,.9),rgba(12,42,60,.55))}
.pagehead__row{position:relative;padding:96px 0 52px;min-height:360px;display:flex;flex-direction:column;justify-content:flex-end}
.pagehead__en{display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.14em;color:#8FC4E4;text-transform:uppercase}
.pagehead__en::before{content:"";width:28px;height:2px;background:var(--accent)}
.pagehead__title{margin-top:12px;font-size:clamp(28px,3vw,44px);color:var(--white)}
.pagehead__desc{margin-top:12px;max-width:760px;color:#CFE0EB;font-size:16px}

/* ================= 面包屑 ================= */
.crumb{border-bottom:1px solid var(--line);background:var(--white);font-size:13px;color:var(--muted)}
.crumb__row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0}
.crumb a:hover{color:var(--brand)}
.crumb em{font-style:normal;color:var(--ink)}
.crumb i{font-style:normal;color:var(--line-strong)}

/* ================= 区块骨架 ================= */
.block{padding:64px 0}
.block--tint{background:var(--tint)}
.block__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:30px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.block__head h2{font-size:28px}
.block__head p{margin-top:8px;color:var(--muted);max-width:760px}
.block__en{display:block;font-size:12px;letter-spacing:.16em;color:var(--brand);text-transform:uppercase;margin-bottom:6px}
.block__more{flex-shrink:0;color:var(--brand);font-weight:500;white-space:nowrap}
.block__more:hover{color:var(--accent)}
.block__head--gap{margin-top:44px}
.cta-line{margin-top:26px}

/* ================= 产品分类卡 ================= */
.zoneline{display:flex;align-items:center;gap:14px;margin:30px 0 16px}
.zoneline b{font-size:17px;color:var(--ink);padding-left:12px;border-left:4px solid var(--brand)}
.zoneline span{flex:1;height:1px;background:var(--line)}
.zoneline em{font-style:normal;font-size:13px;color:var(--muted)}
.catgrid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap)}
.catcard{border:1px solid var(--line);background:var(--white);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}
.catcard:hover{border-color:var(--brand);box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.catcard__pic{display:block;aspect-ratio:4/3;overflow:hidden;background:var(--tint)}
.catcard__pic img{width:100%;height:100%;object-fit:cover;transition:scale .4s ease}
.catcard:hover .catcard__pic img{scale:1.05}
.catcard__body{display:block;padding:18px 20px 20px}
.catcard__body h3{font-size:18px}
.catcard__zone{display:inline-block;margin-top:6px;font-size:12px;color:var(--accent)}
.catcard__body p{margin-top:10px;color:var(--muted);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.catcard__more{display:flex;align-items:center;justify-content:space-between;margin-top:16px;padding-top:14px;border-top:1px solid var(--line);color:var(--brand);font-size:13px;font-weight:500}

/* ================= 数据条 ================= */
.facts{position:relative;background:#12374F;color:var(--white)}
.facts__bg{position:absolute;inset:0;opacity:.22}
.facts__bg img{width:100%;height:100%;object-fit:cover}
.facts__row{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.16)}
.facts__item{background:#12374F;padding:38px 26px;display:flex;align-items:center;gap:16px}
.facts__item img{width:42px;height:42px}
.facts__num{font-size:34px;line-height:1;font-weight:700;color:var(--white)}
.facts__num i{font-style:normal;font-size:15px;margin-left:4px;color:#9FC9E2}
.facts__label{margin-top:6px;font-size:14px;color:#B9D3E2}

/* ================= 关于 ================= */
.about__row{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:52px;align-items:center}
.about__row p{margin-top:14px}
.about__list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px}
.about__list li{display:flex;gap:10px;padding:12px 14px;background:var(--tint);border-left:3px solid var(--brand);font-size:14px}
.about__media{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:auto auto;gap:12px}
.about__media img{width:100%;aspect-ratio:4/3;object-fit:cover;border:1px solid var(--line)}
.about__media img:first-child{grid-column:1/-1;aspect-ratio:16/9}

/* ================= 生产实力 ================= */
.capgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.capcard{border:1px solid var(--line);background:var(--white)}
.capcard img{width:100%;aspect-ratio:4/3;object-fit:cover}
.capcard__body{padding:18px 20px}
.capcard__body h3{font-size:17px}
.capcard__body p{margin-top:8px;color:var(--muted);font-size:14px}
.finishrow{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);margin-top:var(--gap)}
.finishrow figure{margin:0;position:relative;border:1px solid var(--line)}
.finishrow img{width:100%;aspect-ratio:16/9;object-fit:cover}
.finishrow figcaption{padding:12px 16px;font-size:14px;color:var(--ink);background:var(--white)}

/* ================= 流程 ================= */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.flow__item{background:var(--white);padding:26px 22px}
.flow__num{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.1em}
.flow__item h3{margin-top:10px;font-size:17px}
.flow__item p{margin-top:8px;font-size:14px;color:var(--muted)}

/* ================= 案例 ================= */
.casegrid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.casecard{position:relative;border:1px solid var(--line);overflow:hidden;background:#0E2432}
.casecard img{width:100%;aspect-ratio:4/3;object-fit:cover;opacity:.86;transition:scale .4s ease,opacity .3s ease}
.casecard:hover img{scale:1.06;opacity:1}
.casecard__body{position:absolute;left:0;right:0;bottom:0;padding:22px;background:linear-gradient(transparent,rgba(9,29,42,.92))}
.casecard__body h3{color:var(--white);font-size:18px}
.casecard__body p{margin-top:6px;color:#CFE0EB;font-size:14px}

/* ================= 图标卡（线稿素材专用，不占照片位） ================= */
.iconcards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.iconcard{display:flex;gap:18px;align-items:flex-start;padding:24px;border:1px solid var(--line);background:var(--white);transition:border-color .2s ease,box-shadow .2s ease}
.iconcard:hover{border-color:var(--brand);box-shadow:var(--shadow)}
.iconcard__ico{flex-shrink:0;width:76px;height:76px;display:grid;place-items:center;background:var(--tint);border:1px solid var(--line)}
.iconcard__ico--dark{background:#12374F;border-color:#12374F}
.iconcard__ico img{width:52px;height:52px;object-fit:contain}
.iconcard h3{font-size:17px}
.iconcard p{margin-top:8px;font-size:14px;color:var(--muted)}

/* ================= 门店业态 ================= */
.formatgrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.formatcard{position:relative;display:block;border:1px solid var(--line);overflow:hidden;background:#0E2432}
.formatcard img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:scale .4s ease}
.formatcard:hover img{scale:1.05}
.formatcard__body{position:absolute;left:0;right:0;bottom:0;display:block;padding:20px;background:linear-gradient(transparent,rgba(9,29,42,.94))}
.formatcard__body b{display:block;color:var(--white);font-size:18px}
.formatcard__body span{display:block;margin-top:6px;color:#CFE0EB;font-size:13px}

/* 案例展示（工程案例页） */
.casegrid2{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.casecard2{border:1px solid var(--line);background:var(--white);display:flex;flex-direction:column}
.casecard2 img{width:100%;aspect-ratio:4/3;object-fit:cover}
.casecard2__body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
.casecard2__body h3{font-size:18px}
.casecard2__body p{color:var(--muted);font-size:14px}
.casecard2__tag{margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);font-size:13px;color:var(--brand)}

/* 配套清单表 */
.tablewrap{overflow-x:auto}
.listtable{background:var(--white);border:1px solid var(--line);min-width:640px}
.listtable th,.listtable td{padding:14px 18px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;font-size:14px}
.listtable thead th{background:var(--brand);color:var(--white);font-weight:500;border-bottom:0}
.listtable tbody th{width:150px;color:var(--ink);font-weight:700;background:#FAFCFD}
.listtable tbody tr:last-child th,.listtable tbody tr:last-child td{border-bottom:0}

/* 业态快捷入口 */
.findbar{display:flex;flex-wrap:wrap;align-items:center;gap:14px;padding:16px 20px;margin-bottom:8px;background:var(--tint);border:1px solid var(--line)}
.findbar b{font-size:15px;color:var(--ink)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{padding:6px 14px;background:var(--white);border:1px solid var(--line-strong);font-size:13px;transition:border-color .2s ease,color .2s ease}
.chip:hover{border-color:var(--brand);color:var(--brand)}

/* ================= 发展历程 ================= */
.timeline{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0}
.timeline li{display:flex;flex-direction:column;padding-right:24px}
.timeline__year{font-size:28px;font-weight:700;color:var(--brand-dark);line-height:1.1}
/* 圆点压在贯穿的横线上，作为年份与文字之间的节点 */
.timeline__dot{position:relative;display:block;height:11px;margin:14px 0 18px}
.timeline__dot::before{content:"";position:absolute;left:0;right:-24px;top:5px;height:1px;background:var(--line-strong)}
.timeline__dot::after{content:"";position:absolute;left:0;top:0;width:11px;height:11px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--tint)}
.timeline li:last-child .timeline__dot::before{right:0}
.timeline__body h3{font-size:16px}
.timeline__body p{margin-top:8px;font-size:14px;color:var(--muted)}

/* ================= 荣誉与客户 ================= */
.honorgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.honorgrid figure{margin:0;border:1px solid var(--line);background:var(--white);padding:14px}
/* 证书原图是 4:3 横版，按竖版排会把卡片撑得过高 */
.honorgrid img{width:100%;aspect-ratio:4/3;object-fit:contain}
.honorgrid figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--muted)}
.partnerrow{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.partnerrow div{border:1px solid var(--line);background:var(--white);display:grid;place-items:center;padding:18px;min-height:92px}
.partnerrow img{max-height:48px;width:auto;object-fit:contain}

/* ================= 新闻 ================= */
.newscols{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:44px}
.newslead{display:block;border:1px solid var(--line);background:var(--white);transition:border-color .2s ease,box-shadow .2s ease}
.newslead:hover{border-color:var(--brand);box-shadow:var(--shadow-hover)}
.newslead img{width:100%;aspect-ratio:16/9;object-fit:cover}
/* 大卡片正文给底色，避免整块纯白压不住上方图片 */
.newslead__body{display:block;padding:22px 24px 26px;background:var(--tint);border-top:2px solid var(--brand)}
.newslead:hover h3{color:var(--brand)}
.newslead__meta{display:flex;gap:12px;align-items:center;font-size:13px;color:var(--muted)}
.newslead__tag{color:var(--brand);border:1px solid var(--line-strong);padding:1px 8px;font-size:12px}
.newslead__body h3{margin-top:10px;font-size:20px}
.newslead__body p{margin-top:10px;color:var(--muted);font-size:14px}
.newslist li{border-bottom:1px dashed var(--line);padding:16px 0}
.newslist li:first-child{padding-top:0}
.newslist a{display:grid;grid-template-columns:64px minmax(0,1fr);gap:16px;align-items:start}
.newslist time{display:block;text-align:center;border:1px solid var(--line);padding:6px 0;color:var(--muted);line-height:1.2}
.newslist time b{display:block;font-size:20px;color:var(--brand-dark)}
.newslist time span{font-size:12px}
.newslist h3{font-size:16px;font-weight:500}
.newslist a:hover h3{color:var(--brand)}
.newslist p{margin-top:6px;font-size:13px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

.newsgrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.newscard{border:1px solid var(--line);background:var(--white);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}
.newscard:hover{border-color:var(--brand);box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.newscard img{width:100%;aspect-ratio:16/10;object-fit:cover}
.newscard__body{display:block;padding:18px 20px 22px}
.newscard__body h3{margin-top:10px;font-size:17px}
.newscard__body p{margin-top:8px;font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ================= 询价条 ================= */
.cta{position:relative;background:#12374F;color:var(--white)}
.cta__bg{position:absolute;inset:0}
.cta__bg img{width:100%;height:100%;object-fit:cover;opacity:.3}
.cta__row{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,520px);gap:52px;align-items:center;padding:56px 0}
.cta h2{color:var(--white);font-size:28px}
.cta p{margin-top:14px;color:#CFE0EB;max-width:520px}
.cta__points{margin-top:24px;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.cta__points li{display:flex;gap:10px;align-items:flex-start;color:#CFE0EB;font-size:14px;line-height:1.7}
.cta__points .ico{flex-shrink:0;margin-top:3px;color:var(--accent)}
.cta__points b{display:block;color:var(--white);font-size:15px;margin-bottom:2px}
.cta__contact{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.cta__contact a{display:flex;align-items:center;gap:10px;padding:12px 18px;border:1px solid rgba(255,255,255,.24);transition:background .2s ease,border-color .2s ease}
.cta__contact a:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.45)}
.cta__contact span{display:block;font-size:12px;color:#9FC9E2}
.cta__contact b{display:block;font-size:17px;color:var(--white)}

/* ================= 表单 ================= */
.form{background:var(--white);border:1px solid var(--line);padding:26px}
.form h3{font-size:19px}
.form__hint{margin-top:6px;font-size:13px;color:var(--muted)}
.form__grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:18px}
.form label{display:flex;flex-direction:column;gap:6px;font-size:14px;color:var(--ink);font-weight:500}
.form label.is-wide{grid-column:1/-1}
.form__label{display:block;line-height:1.4}
.form .req{font-style:normal;color:var(--accent);margin-left:4px}
.form input,.form textarea{
  border:1px solid var(--line-strong);border-radius:var(--radius);
  padding:11px 12px;background:var(--white);color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form input::placeholder,.form textarea::placeholder{color:#93A2B0}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,95,139,.14)}
.form textarea{resize:vertical;min-height:96px}
.form .btn{grid-column:1/-1;width:100%}

/* ================= 左侧分类栏 ================= */
/* 左列拉伸到整行高度，内层吸顶跟随滚动，这样不需要内部滚动条 */
.withside{display:grid;grid-template-columns:264px minmax(0,1fr);gap:36px;align-items:stretch}
.sidecol{min-width:0}
.sidecol__inner{position:sticky;top:96px}
.sidebox{border:1px solid var(--line);background:var(--white);margin-bottom:12px}
.sidebox__head{background:var(--brand);color:var(--white);padding:9px 16px}
.sidebox__head b{display:block;font-size:16px;line-height:1.3}
.sidenav li{border-bottom:1px solid var(--line)}
.sidenav li:last-child{border-bottom:0}
.sidenav a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:4px 16px;font-size:14px;line-height:1.5;transition:background .2s ease,color .2s ease}
.sidenav a::after{content:"›";color:var(--line-strong)}
.sidenav a:hover{background:var(--tint);color:var(--brand)}
.sidenav li.is-current a{background:var(--tint);color:var(--brand);font-weight:500;box-shadow:inset 3px 0 0 var(--brand)}
.sidebox--form .form{border:0;padding:12px 14px 14px;box-shadow:none}
.sidebox--form .form__grid{margin-top:0;gap:8px}
.sidebox--form label{gap:4px}
.sidebox--form textarea{min-height:56px}
.form--compact .form__grid{grid-template-columns:1fr;gap:10px;margin-top:12px}
.form--compact input,.form--compact textarea{padding:9px 11px}
.form--compact .btn{min-height:42px}

/* ================= 产品网格 ================= */
.prodgrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.prodgrid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.prodcard{border:1px solid var(--line);background:var(--white);display:flex;flex-direction:column;transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}
.prodcard:hover{border-color:var(--brand);box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.prodcard__pic{aspect-ratio:1/1;padding:16px;background:var(--white);display:grid;place-items:center;border-bottom:1px solid var(--line)}
.prodcard__pic img{max-height:100%;width:auto;object-fit:contain;mix-blend-mode:multiply}
.prodcard__body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:6px;flex:1}
.prodcard__code{font-size:12px;color:var(--accent);letter-spacing:.04em}
.prodcard__body h3{font-size:16px;font-weight:500;line-height:1.5}
.prodcard:hover h3{color:var(--brand)}
.prodcard__meta{margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);font-size:12px;color:var(--muted);display:flex;justify-content:space-between;gap:8px}
.pager{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:32px}
.pager button{min-width:40px;height:40px;padding:0 12px;border:1px solid var(--line);background:var(--white);color:var(--text)}
.pager button:hover{border-color:var(--brand);color:var(--brand)}
.pager button.is-current{background:var(--brand);border-color:var(--brand);color:var(--white)}

/* ================= 分类页说明 ================= */
.catintro{border:1px solid var(--line);border-top:3px solid var(--brand);background:var(--white);padding:26px 28px;margin-bottom:26px}
.catintro h2{font-size:26px}
.catintro p{margin-top:12px}
.catintro__size{margin-top:16px;padding:12px 16px;background:var(--tint);font-size:14px;color:var(--ink)}
.pointrow{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);margin-bottom:30px}
.pointrow article{border:1px solid var(--line);background:var(--white);padding:22px}
.pointrow b{display:block;font-size:13px;color:var(--accent);letter-spacing:.1em}
.pointrow h3{margin-top:8px;font-size:16px}
.pointrow p{margin-top:8px;font-size:14px;color:var(--muted)}

/* ================= 产品详情 ================= */
.pdtop{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:44px;align-items:start;padding:44px 0 8px}
.gallery__stage{border:1px solid var(--line);background:var(--white);padding:22px;display:grid;place-items:center;aspect-ratio:4/3}
.gallery__stage img{max-height:100%;width:auto;object-fit:contain;mix-blend-mode:multiply}
.gallery__thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:12px}
.gallery__thumbs button{border:1px solid var(--line);background:var(--white);padding:6px;aspect-ratio:1/1;display:grid;place-items:center}
.gallery__thumbs button:hover{border-color:var(--brand)}
.gallery__thumbs button.is-current{border-color:var(--brand);box-shadow:0 0 0 2px rgba(31,95,139,.18)}
.gallery__thumbs img{max-height:100%;width:auto;object-fit:contain;mix-blend-mode:multiply}

.pdinfo__cat{display:inline-block;font-size:12px;color:var(--brand);border:1px solid var(--line-strong);padding:2px 10px}
.pdinfo h1{margin-top:14px;font-size:30px;line-height:1.3}
.pdinfo__lead{margin-top:12px;color:var(--muted)}
.spec{margin-top:22px;border:1px solid var(--line)}
.spec caption{text-align:left;padding:12px 16px;background:var(--tint);font-weight:700;color:var(--ink);border-bottom:1px solid var(--line)}
.spec th,.spec td{padding:11px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;font-size:14px}
.spec tr:last-child th,.spec tr:last-child td{border-bottom:0}
.spec th{width:128px;color:var(--muted);font-weight:400;background:#FAFCFD}
.spec td{color:var(--ink)}
.pdactions{display:flex;gap:14px;flex-wrap:wrap;margin-top:22px}
.pdcall{display:flex;align-items:center;gap:12px;margin-top:18px;padding:14px 18px;background:var(--tint);border-left:3px solid var(--accent);color:var(--brand-dark);transition:background .2s ease}
.pdcall:hover{background:#E9F1F7}
.pdcall span{display:block;font-size:13px;color:var(--muted)}
.pdcall b{display:block;font-size:19px;color:var(--brand-dark)}

.tabs{display:flex;gap:0;border-bottom:2px solid var(--line);margin-bottom:28px;flex-wrap:wrap}
.tabs button{padding:14px 28px;font-weight:500;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-2px}
.tabs button:hover{color:var(--brand)}
.tabs button[aria-selected="true"]{color:var(--brand);border-bottom-color:var(--brand)}
.tabpanel[hidden]{display:none}
.prose p{margin-bottom:14px}
.prose h3{margin:24px 0 10px;font-size:18px}
.speclist li{position:relative;padding:12px 0 12px 18px;border-bottom:1px dashed var(--line)}
.speclist li::before{content:"";position:absolute;left:0;top:20px;width:6px;height:6px;background:var(--accent)}
.speclist li:last-child{border-bottom:0}
.speclist b{display:inline;color:var(--ink);margin-right:6px}
.detailshots{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);margin-top:22px}
.detailshots figure{margin:0;border:1px solid var(--line);background:var(--white)}
.detailshots img{width:100%;aspect-ratio:4/3;object-fit:cover}
.detailshots figcaption{padding:10px 14px;font-size:13px;color:var(--muted);border-top:1px solid var(--line)}

.faqlist details{border:1px solid var(--line);background:var(--white);margin-bottom:12px}
.faqlist summary{padding:16px 20px;font-weight:500;color:var(--ink);cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faqlist summary::-webkit-details-marker{display:none}
.faqlist summary::after{content:"+";color:var(--brand);font-size:20px;line-height:1}
.faqlist details[open] summary::after{content:"−"}
.faqlist p{padding:0 20px 18px;color:var(--muted)}

/* ================= 新闻详情 ================= */
.article{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:40px;align-items:start;padding:44px 0}
.article__main{min-width:0;border:1px solid var(--line);background:var(--white);padding:34px}
.article__main h1{font-size:30px;line-height:1.35}
.article__meta{display:flex;flex-wrap:wrap;gap:16px;margin-top:14px;padding-bottom:18px;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.article__lead{margin-top:20px;padding:16px 18px;background:var(--tint);border-left:3px solid var(--brand);color:var(--ink)}
.article__main figure{margin:24px 0}
.article__main figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border:1px solid var(--line)}
.article__main figcaption{margin-top:8px;font-size:13px;color:var(--muted)}
.article__main h2{margin:28px 0 12px;font-size:21px;padding-left:12px;border-left:4px solid var(--brand)}
.article__main p{margin-bottom:14px}
.pager2{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:30px;padding-top:22px;border-top:1px solid var(--line)}
.pager2 div{border:1px solid var(--line);padding:14px 16px;font-size:14px}
.pager2 span{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}
.pager2 a:hover{color:var(--brand)}
.aside{position:sticky;top:98px;display:grid;gap:22px;min-width:0}
.aside>*{min-width:0}
.asidebox{border:1px solid var(--line);background:var(--white)}
.asidebox__head{padding:14px 18px;border-bottom:1px solid var(--line);font-weight:700;color:var(--ink)}
.asidebox__body{padding:18px}
.asidebox__body img{width:100%;aspect-ratio:16/10;object-fit:cover;margin-bottom:12px;border:1px solid var(--line)}
.asidebox__body p{font-size:14px;color:var(--muted)}
.asidelist li{border-bottom:1px dashed var(--line)}
.asidelist li:last-child{border-bottom:0}
.asidelist a{display:block;padding:12px 18px;font-size:14px}
.asidelist a:hover{color:var(--brand);background:var(--tint)}
.aside .form{border:0}
.aside .form__grid{grid-template-columns:1fr}

/* ================= 联系页 ================= */
.contactgrid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,560px);gap:44px;align-items:start}
.lead{margin-top:14px;color:var(--muted)}
.subhead{margin-top:30px;font-size:18px}
.infolist{margin-top:20px}
.infolist li{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--line)}
.infolist .ico{flex-shrink:0;margin-top:4px;color:var(--brand)}
.infolist span{display:block;font-size:13px;color:var(--muted)}
.infolist b,.infolist a{display:block;font-size:16px;color:var(--ink);font-weight:500}
.infolist a:hover{color:var(--brand)}
.ticklist{margin-top:14px;display:grid;gap:10px}
.ticklist li{display:flex;gap:10px;align-items:flex-start;font-size:14px}
.ticklist .ico{flex-shrink:0;margin-top:4px;color:var(--accent)}
.qrbox{margin-top:24px;display:flex;gap:18px;align-items:center;padding:18px;border:1px dashed var(--line-strong);background:var(--tint)}
.qrbox__ph{width:104px;height:104px;display:grid;place-items:center;background:var(--white);border:1px solid var(--line);font-size:12px;color:var(--muted);text-align:center;line-height:1.5}
.qrbox p{font-size:13px;color:var(--muted)}

/* ================= 搜索与辅助页 ================= */
.searchbar{display:flex;gap:12px;border:1px solid var(--line);background:var(--white);padding:18px}
.searchbar input{flex:1;border:1px solid var(--line-strong);border-radius:var(--radius);padding:0 16px;min-height:46px}
.searchbar input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,95,139,.14)}
.results{display:grid;gap:12px;margin-top:20px}
.results a{display:block;border:1px solid var(--line);background:var(--white);padding:16px 20px}
.results a:hover{border-color:var(--brand)}
.results b{color:var(--ink)}
.results p{margin-top:6px;font-size:14px;color:var(--muted)}
.results__tag{font-size:12px;color:var(--brand)}
.plain{max-width:900px}
.plain h2{margin:26px 0 10px;font-size:20px}
.plain p{margin-bottom:12px}
.sitemapgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);align-items:start}
.sitemapgrid section{border:1px solid var(--line);background:var(--white);padding:20px}
.sitemapgrid h2{font-size:17px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.sitemapgrid li{padding:7px 0;font-size:14px;border-bottom:1px dashed var(--line)}
.sitemapgrid li:last-child{border-bottom:0}
.sitemapgrid a:hover{color:var(--brand)}
.notfound{padding:110px 0;text-align:center}
.notfound b{display:block;font-size:82px;line-height:1;color:var(--brand);letter-spacing:.06em}
.notfound h1{margin-top:16px;font-size:26px}
.notfound p{margin-top:12px;color:var(--muted)}
.notfound div{display:flex;gap:14px;justify-content:center;margin-top:26px;flex-wrap:wrap}

/* ================= 页脚 ================= */
.footer{position:relative;background:#0F2C3E;color:#B9CEDC;margin-top:0}
.footer__bg{position:absolute;inset:0;opacity:.16}
.footer__bg img{width:100%;height:100%;object-fit:cover}
.footer__row{position:relative;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:38px;padding:52px 0 40px}
.footer h3{color:var(--white);font-size:16px;padding-bottom:12px;margin-bottom:14px;border-bottom:1px solid rgba(255,255,255,.16)}
.footer li{padding:5px 0;font-size:14px}
.footer a:hover{color:var(--white)}
.footer__logo{width:132px;background:transparent}
.footer__intro{margin-top:16px;font-size:14px;line-height:1.8}
.footer__social{display:flex;gap:10px;margin-top:18px}
.footer__social a{width:38px;height:38px;border:1px solid rgba(255,255,255,.22);display:grid;place-items:center;transition:background .2s ease,border-color .2s ease}
.footer__social a:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.4)}
.footer__social img{width:18px;height:18px}
.footer__contact li{display:flex;gap:10px;align-items:flex-start}
.footer__contact img{width:18px;height:18px;margin-top:5px}
.footer__qr{margin-top:16px;width:104px;height:104px;display:grid;place-items:center;border:1px dashed rgba(255,255,255,.3);font-size:12px;text-align:center;line-height:1.5;color:#9FB8C8}
.footer__bottom{position:relative;border-top:1px solid rgba(255,255,255,.14);font-size:13px}
.footer__bottom div{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding:16px 0}

/* ================= 悬浮客服 ================= */
.dock{position:fixed;right:16px;top:50%;translate:0 -50%;z-index:70;display:grid;gap:6px}
.dock__btn{width:62px;padding:12px 4px;background:var(--white);border:1px solid var(--line);display:grid;place-items:center;gap:5px;font-size:12px;line-height:1.2;color:var(--brand-dark);box-shadow:var(--shadow);transition:background .2s ease,color .2s ease,border-color .2s ease}
.dock__btn .ico{color:inherit}
.dock__btn:hover{background:var(--brand);color:var(--white);border-color:var(--brand)}
.dock__pop{position:absolute;right:70px;top:50%;translate:0 -50%;width:172px;padding:16px;background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow);font-size:12px;color:var(--muted);text-align:center;line-height:1.6}
.dock__qr{display:grid;place-items:center;height:108px;margin-bottom:10px;border:1px dashed var(--line-strong);background:var(--tint);color:var(--muted)}

/* ================= 询价弹窗 ================= */
.modal{position:fixed;inset:0;z-index:90;display:grid;place-items:center;padding:20px}
.modal__mask{position:absolute;inset:0;background:rgba(11,32,45,.62)}
.modal__panel{position:relative;width:min(460px,100%);max-height:calc(100vh - 40px);overflow-y:auto;background:var(--white);border-top:3px solid var(--brand);box-shadow:0 30px 70px rgba(9,29,42,.35)}
.modal__panel .form{border:0;box-shadow:none;padding:28px}
.modal__close{position:absolute;right:10px;top:10px;width:38px;height:38px;display:grid;place-items:center;color:var(--muted);border:1px solid transparent}
.modal__close:hover{color:var(--brand);border-color:var(--line)}

/* ================= 出场动画 ================= */
.reveal{opacity:0;translate:0 18px}
.reveal.is-in{opacity:1;translate:0 0;transition:opacity .5s ease,translate .5s ease;transition-delay:calc(var(--i,0) * 60ms)}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
  .reveal{opacity:1;translate:none}
}

/* ================= 响应式 ================= */
@media (max-width:1280px){
  :root{--shell:90vw}
  .catgrid,.prodgrid--4,.honorgrid,.sitemapgrid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .detailshots{grid-template-columns:repeat(2,1fr)}
  .timeline{grid-template-columns:repeat(3,1fr);gap:26px 0}
  .timeline::before{display:none}
  .hero__row{grid-template-columns:minmax(0,1fr) 300px;gap:32px}
}
@media (max-width:1080px){
  .topbar__row{height:34px;justify-content:center}
  .topbar__intro,.topbar__sep,.topbar__links a:not(.topbar__tel){display:none}
  .nav__tel{display:block;margin-top:18px;padding:14px;text-align:center;background:var(--brand);color:var(--white);font-weight:700;border-radius:var(--radius)}
  .masthead__row{height:66px}
  .nav__link{height:auto;line-height:1.6}
  .navtoggle{display:flex}
  .hotline{display:none}
  .nav{position:fixed;left:0;right:0;top:66px;bottom:0;background:var(--white);padding:12px 5vw 40px;overflow:auto;display:none;border-top:1px solid var(--line)}
  .nav.is-open{display:block}
  .nav__list{display:block}
  .nav__link{padding:14px 0;border-bottom:1px solid var(--line)}
  .nav__link::after{display:none}
  .megamenu{position:static;transform:none;width:auto;opacity:1;visibility:visible;translate:none;box-shadow:none;border:0;border-bottom:1px solid var(--line);padding:10px 0;grid-template-columns:1fr 1fr}
  .hero{min-height:auto}
  .hero__row,.about__row,.newscols,.contactgrid,.cta__row,.article,.pdtop,.withside{grid-template-columns:minmax(0,1fr)}
  .hero__row{padding:48px 0;gap:28px}
  .aside{position:static}
  .sidecol{position:static;max-height:none;overflow:visible}
  .pagehead__row{padding:64px 0 36px;min-height:280px}
  .formatgrid,.casegrid2,.iconcards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .facts__row,.catgrid,.capgrid,.casegrid,.newsgrid,.finishrow,.prodgrid,.prodgrid--4,.pointrow,.flow,.honorgrid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .partnerrow{grid-template-columns:repeat(3,1fr)}
  .footer__row,.sitemapgrid{grid-template-columns:repeat(2,1fr)}
  .dock{display:none}
  .withside{gap:26px}
  .sidebox--tree .sidenav{display:grid;grid-template-columns:1fr 1fr}
}
@media (max-width:680px){
  body{font-size:14px}
  .block{padding:44px 0}
  .block__head{flex-direction:column;align-items:flex-start;gap:10px}
  .block__head h2{font-size:23px}
  .hero__title{font-size:27px}
  .hero__desc{font-size:15px}
  .hero__actions .btn,.notfound div .btn{width:100%}
  .facts__row,.catgrid,.capgrid,.casegrid,.newsgrid,.finishrow,.prodgrid,.prodgrid--4,.pointrow,.flow,.honorgrid,.footer__row,.sitemapgrid,.form__grid,.pager2,.about__media,.about__list,.formatgrid,.casegrid2,.cta__points,.timeline,.iconcards{grid-template-columns:minmax(0,1fr)}
  .iconcard{padding:18px;gap:14px}
  .iconcard__ico{width:60px;height:60px}
  .iconcard__ico img{width:40px;height:40px}
  .pagehead__row{padding:48px 0 28px;min-height:200px}
  .timeline li::after{margin:10px 0 12px}
  .about__media img:first-child{grid-column:auto}
  .partnerrow{grid-template-columns:repeat(2,1fr)}
  .megamenu{grid-template-columns:1fr}
  .article__main{padding:22px}
  .article__main h1,.pdinfo h1{font-size:23px}
  .gallery__thumbs{grid-template-columns:repeat(4,1fr)}
  .tabs button{flex:1;padding:12px 10px;text-align:center}
  .searchbar{flex-direction:column}
  .spec th{width:96px}
  .newslist a{grid-template-columns:56px minmax(0,1fr)}
  /* 12 个分类在窄屏保持两列，避免把产品列表推得太远 */
  .sidebox--tree .sidenav{grid-template-columns:1fr 1fr}
  .sidenav a{padding:12px 14px}
  .sidenav a::after{display:none}
}