/* 新乡市煜轩机械设备有限公司 - 官网样式表
   设计原则：无外部依赖（不加载 CDN 字体/图标库），移动优先，首屏不依赖图片。 */

:root{
  --brand:#0b5cab;
  --brand-dark:#083f78;
  --brand-light:#e8f1fa;
  --accent:#e8801a;
  --accent-dark:#c96a0f;
  --ink:#16202b;
  --muted:#5a6672;
  --line:#e2e8ee;
  --bg:#f5f7f9;
  --white:#fff;
  --radius:6px;
  --shadow:0 2px 10px rgba(16,32,48,.07);
  --wrap:1180px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--white);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC","Hiragino Sans GB",sans-serif;
  font-size:16px;line-height:1.75;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--accent-dark)}
h1,h2,h3,h4{line-height:1.35;margin:0 0 .6em;font-weight:700}
h1{font-size:1.7rem}
h2{font-size:1.35rem}
h3{font-size:1.08rem}
p{margin:0 0 1em}
ul,ol{padding-left:1.25em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 16px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- 顶部条 ---------- */
.topbar{background:var(--brand-dark);color:#cfe2f5;font-size:.82rem}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;gap:12px;min-height:36px;flex-wrap:wrap}
.topbar a{color:#fff}
.topbar span{white-space:nowrap}

/* ---------- 页头 ---------- */
.site-header{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:66px}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:1.06rem;letter-spacing:.3px}
.logo:hover{color:var(--brand)}
.logo-mark{
  height:38px;width:auto;max-width:52px;flex:0 0 auto;display:block;
  object-fit:contain;
}
@media (max-width:520px){ .logo-mark{height:32px;max-width:46px} }
.logo small{display:block;font-size:.7rem;font-weight:400;color:var(--muted);letter-spacing:1.4px}

.nav-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:4px;
  width:42px;height:38px;padding:0 9px;background:none;border:1px solid var(--line);
  border-radius:var(--radius);cursor:pointer;
}
.nav-toggle i{display:block;height:2px;background:var(--ink);border-radius:2px}
.nav-toggle[aria-expanded="true"]{background:var(--brand-light);border-color:var(--brand)}

.site-nav{display:none;width:100%;padding-bottom:12px}
.site-nav.is-open{display:block}
.site-nav ul{list-style:none;margin:0;padding:0}
.site-nav li+li{border-top:1px solid var(--line)}
.site-nav a{display:block;padding:11px 2px;color:var(--ink);font-size:.98rem}
.site-nav a[aria-current="page"]{color:var(--brand);font-weight:700}

.header-cta{display:none}

/* ---------- 通用块 ---------- */
.section{padding:44px 0}
.section--alt{background:var(--bg)}
.section-head{max-width:760px;margin:0 0 26px}
.section-head p{color:var(--muted);margin:0}
.eyebrow{
  display:inline-block;font-size:.76rem;letter-spacing:2px;text-transform:uppercase;
  color:var(--brand);font-weight:700;margin-bottom:8px;
}
.lead{font-size:1.02rem;color:var(--muted)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:12px 22px;border-radius:var(--radius);font-size:.97rem;font-weight:700;
  border:1px solid transparent;cursor:pointer;transition:background .15s,color .15s,border-color .15s;
}
.btn--primary{background:var(--accent);color:#fff}
.btn--primary:hover{background:var(--accent-dark);color:#fff}
.btn--ghost{background:var(--white);color:var(--brand);border-color:var(--brand)}
.btn--ghost:hover{background:var(--brand-light);color:var(--brand-dark)}
.btn--block{width:100%}

/* ---------- 首屏 ---------- */
.hero{
  background:linear-gradient(160deg,#0a3564 0%,#0b5cab 62%,#1273c9 100%);
  color:#fff;padding:46px 0 40px;position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:auto -80px -120px auto;width:340px;height:340px;
  border-radius:50%;background:rgba(255,255,255,.05);
}
.hero-inner{position:relative;z-index:1;max-width:720px}
.hero h1{color:#fff;font-size:1.62rem;margin-bottom:14px}
.hero h1 em{font-style:normal;color:#ffcb8a;display:block;font-size:.72em;font-weight:400;letter-spacing:1px;margin-top:8px}
.hero p{color:#d8e8f8;font-size:1rem;margin-bottom:22px}
.hero-actions{display:flex;flex-wrap:wrap;gap:10px}
.hero-points{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:9px;font-size:.92rem;color:#d8e8f8}
.hero-points li{display:flex;gap:8px;align-items:flex-start}
.hero-points li::before{content:"✓";color:#ffcb8a;font-weight:700;flex:0 0 auto}

/* ---------- 卡片网格 ---------- */
.grid{display:grid;gap:16px}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow);
}
.card h3{margin-bottom:8px}
.card p{color:var(--muted);font-size:.93rem;margin-bottom:12px}
.card .more{font-size:.9rem;font-weight:700}

/* ---------- 产品卡 ---------- */
.product-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow);
  transition:border-color .15s,transform .15s;
}
.product-card:hover{border-color:var(--brand);transform:translateY(-2px)}
.product-thumb{
  height:132px;background:var(--brand-light);
  display:flex;align-items:center;justify-content:center;color:var(--brand);
  border-bottom:1px solid var(--line);
}
.product-thumb svg{width:64px;height:64px}
.product-card .body{padding:16px;flex:1;display:flex;flex-direction:column}
.product-card h3{font-size:1rem;margin-bottom:6px}
.product-card h3 a{color:var(--ink)}
.product-card h3 a:hover{color:var(--brand)}
.product-card p{color:var(--muted);font-size:.9rem;flex:1}
.taglist{list-style:none;padding:0;margin:0 0 12px;display:flex;flex-wrap:wrap;gap:6px}
.taglist li{background:var(--brand-light);color:var(--brand-dark);font-size:.76rem;padding:2px 9px;border-radius:100px}

/* ---------- 数据条 ---------- */
.stats{display:grid;gap:14px;margin:0;padding:0;list-style:none}
.stat{border-left:3px solid var(--brand);padding-left:14px}
.stat b{display:block;font-size:1.5rem;line-height:1.2;color:var(--brand-dark)}
.stat span{font-size:.86rem;color:var(--muted)}

/* ---------- 图文两栏 ---------- */
/* minmax(0,1fr) 而非 1fr：1fr 的自动最小值等于内容最小宽度，
   宽表格会把列顶宽、进而把整页撑出横向滚动条 */
.split{display:grid;gap:24px;grid-template-columns:minmax(0,1fr)}
.split>*{min-width:0}
.grid--2>*,.grid--3>*,.grid--4>*,.stats>*,.footer-grid>*{min-width:0}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:.92rem;min-width:360px}
th,td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
th{background:var(--brand-light);color:var(--brand-dark);font-weight:700;white-space:nowrap}
tbody tr:nth-child(even){background:#fafbfc}

/* ---------- 面包屑 ---------- */
.crumb{font-size:.85rem;color:var(--muted);padding:14px 0 0}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}

/* ---------- 页面标题区 ---------- */
.page-head{background:var(--bg);border-bottom:1px solid var(--line);padding:6px 0 26px}
.page-head h1{margin-bottom:8px}
.page-head p{color:var(--muted);margin:0;max-width:760px}

/* ---------- FAQ ---------- */
.faq details{border-bottom:1px solid var(--line);padding:12px 0}
.faq summary{cursor:pointer;font-weight:700;font-size:.99rem;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"＋";color:var(--brand);margin-right:8px;font-weight:700}
.faq details[open] summary::before{content:"－"}
.faq details p{margin:10px 0 0;color:var(--muted);font-size:.94rem}

/* ---------- 联系条 ---------- */
.contact-band{background:var(--brand-dark);color:#fff;padding:36px 0}
.contact-band h2{color:#fff}
.contact-band p{color:#cfe2f5}
.contact-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}

/* ---------- 表单 ---------- */
.form-row{margin-bottom:14px}
.form-row label{display:block;font-size:.88rem;font-weight:700;margin-bottom:5px}
.form-row input,.form-row textarea,.form-row select{
  width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:var(--radius);
  font:inherit;font-size:.94rem;color:var(--ink);background:var(--white);
}
.form-row input:focus,.form-row textarea:focus,.form-row select:focus{
  outline:2px solid var(--brand-light);border-color:var(--brand);
}
.form-note{font-size:.83rem;color:var(--muted)}

/* ---------- 页脚 ---------- */
.site-footer{background:#101a24;color:#93a3b3;font-size:.88rem;padding:36px 0 24px}
.site-footer h4{color:#fff;font-size:.95rem;margin-bottom:12px}
.site-footer a{color:#c3d1de}
.site-footer a:hover{color:#fff}
.footer-grid{display:grid;gap:26px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:7px}
.footer-bottom{border-top:1px solid #22303d;margin-top:26px;padding-top:16px;font-size:.8rem;color:#7d8d9d}
.footer-bottom .foot-tm{margin-top:6px;font-size:.76rem;color:#6a7a8a;line-height:1.6}

/* ---------- 悬浮咨询 ---------- */
.float-call{
  position:fixed;right:14px;bottom:14px;z-index:60;
  background:var(--accent);color:#fff;border-radius:100px;
  padding:11px 18px;font-weight:700;font-size:.92rem;box-shadow:0 6px 18px rgba(232,128,26,.4);
}
.float-call:hover{background:var(--accent-dark);color:#fff}

/* ---------- 产品实拍图 ---------- */
/* 缩略图改为实拍：object-fit 保证任意长宽比的设备原图都不变形 */
.product-thumb{height:170px;padding:0;overflow:hidden}
.product-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s}
.product-card:hover .product-thumb img{transform:scale(1.05)}

/* 图集：产品页多角度实拍，点小图换大图（脚本见 main.js） */
.shots{list-style:none;margin:12px 0 0;padding:0;display:grid;gap:8px;
       grid-template-columns:repeat(4,minmax(0,1fr))}
.shots button{display:block;width:100%;padding:0;line-height:0;cursor:pointer;
  border:1px solid var(--line);border-radius:6px;background:var(--white);overflow:hidden;
  transition:border-color .15s,box-shadow .15s}
.shots button:hover{border-color:var(--brand)}
.shots button[aria-current="true"]{border-color:var(--brand);box-shadow:0 0 0 2px var(--brand-light)}
.shots img{width:100%;height:74px;object-fit:cover;display:block}

.shot-stage{border:1px solid var(--line);border-radius:var(--radius);background:#fafbfc;
  overflow:hidden;box-shadow:var(--shadow);line-height:0}
.shot-stage img{width:100%;height:auto;aspect-ratio:4/3;object-fit:contain;display:block}
.shot-cap{font-size:.86rem;color:var(--muted);margin:10px 0 0;line-height:1.65}

/* 单张插图（带图注） */
.figure{margin:0;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;background:var(--white)}
.figure img{width:100%;height:auto;display:block}
.figure figcaption{font-size:.84rem;color:var(--muted);padding:9px 12px;border-top:1px solid var(--line)}

/* ---------- 技术文章 ---------- */
.article{max-width:820px}
.article h2{margin-top:1.9em;font-size:1.24rem}
.article-meta + h2{margin-top:0}
.article h3{margin-top:1.5em;font-size:1.04rem;color:var(--brand-dark)}
.article p,.article li{color:#2b3844}
.article li{margin-bottom:.45em}
.article .table-wrap{overflow-x:auto;margin:0 0 1.3em}
.article .callout{
  background:var(--brand-light);border-left:3px solid var(--brand);
  padding:14px 16px;border-radius:0 var(--radius) var(--radius) 0;
  margin:0 0 1.3em;font-size:.94rem;
}
.article .callout p:last-child{margin-bottom:0}
.article .callout strong{color:var(--brand-dark)}
.article-meta{
  display:flex;flex-wrap:wrap;gap:6px 16px;font-size:.84rem;color:var(--muted);
  margin:0 0 20px;padding-bottom:14px;border-bottom:1px solid var(--line);
}
.article-foot{border-top:1px solid var(--line);margin-top:34px;padding-top:20px}
.article-foot h3{font-size:1rem;margin-bottom:10px}
.article-cta{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;margin-top:26px}
.article-cta h3{margin-bottom:6px;font-size:1.04rem}
.article-cta p{color:var(--muted);font-size:.92rem;margin-bottom:14px}

.article-list{display:grid;gap:16px}
.article-item{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow);transition:border-color .15s,transform .15s;
}
.article-item:hover{border-color:var(--brand);transform:translateY(-2px)}
.article-item h3{margin-bottom:6px;font-size:1.06rem}
.article-item h3 a{color:var(--ink)}
.article-item h3 a:hover{color:var(--brand)}
.article-item p{color:var(--muted);font-size:.93rem;margin-bottom:10px}
.article-item .meta{font-size:.8rem;color:var(--muted)}

/* ---------- 视频中心 ---------- */
.video-group + .video-group{margin-top:46px}
.video-grid{
  display:grid;gap:16px;
  grid-template-columns:repeat(auto-fill,minmax(158px,1fr));
}
.video-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;
}
.video-thumb{
  position:relative;display:block;width:100%;padding:0;border:0;
  background:#0f1720;cursor:pointer;line-height:0;
}
.video-thumb img{
  width:100%;aspect-ratio:3/4;object-fit:cover;display:block;
  transition:transform .35s ease;
}
.video-thumb:hover img,.video-thumb:focus-visible img{transform:scale(1.04)}
.video-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.video-play::before{
  content:"";width:50px;height:50px;border-radius:50%;
  background:rgba(11,92,171,.86);box-shadow:0 4px 16px rgba(0,0,0,.3);
  transition:background .2s ease;
}
.video-play::after{
  content:"";position:absolute;width:0;height:0;
  border-style:solid;border-width:9px 0 9px 15px;
  border-color:transparent transparent transparent #fff;margin-left:4px;
}
.video-thumb:hover .video-play::before,.video-thumb:focus-visible .video-play::before{background:var(--brand-dark)}
.video-card .body{padding:12px 14px 16px;flex:1;display:flex;flex-direction:column}
.video-card h3{font-size:.96rem;margin:0 0 6px;line-height:1.4}
.video-card p{font-size:.83rem;color:var(--muted);margin:0;line-height:1.62}

.video-modal{
  position:fixed;inset:0;z-index:200;background:rgba(8,14,20,.9);
  display:flex;align-items:center;justify-content:center;padding:22px;
}
.video-modal[hidden]{display:none}
.video-modal__box{
  position:relative;max-width:min(1100px,96vw);max-height:92vh;
  display:flex;flex-direction:column;align-items:center;gap:10px;
}
.video-modal video{
  max-width:100%;max-height:76vh;background:#000;
  border-radius:10px;display:block;
}
.video-modal__cap{color:#e8eef4;font-size:.92rem;margin:0;text-align:center;line-height:1.5}
.video-modal__close{
  position:absolute;top:-42px;right:0;background:none;border:0;
  color:#fff;font-size:28px;line-height:1;cursor:pointer;padding:4px 10px;
}
body.modal-open{overflow:hidden}

@media (max-width:639px){
  .video-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .video-modal video{max-height:62vh}
  .video-modal__close{top:-38px}
}
@media (min-width:900px){
  .video-grid{grid-template-columns:repeat(auto-fill,minmax(215px,1fr));gap:20px}
  .video-card h3{font-size:1.02rem}
  .video-card p{font-size:.87rem}
  .video-modal video{max-height:80vh}
}

/* ---------- 实景轮播 ---------- */
.gallery{max-width:900px;margin:0 auto}
.gallery:focus-visible{outline:2px solid var(--brand);outline-offset:4px}
.gallery-stage{
  position:relative;overflow:hidden;border-radius:var(--radius);
  background:linear-gradient(160deg,#0e1b28,#17334c);
}
.gallery-track{display:flex;transition:transform .55s cubic-bezier(.4,0,.2,1)}
.gallery-slide{
  flex:0 0 100%;margin:0;position:relative;
  aspect-ratio:4/3;
  display:flex;align-items:center;justify-content:center;
}
.gallery-slide img{
  max-width:100%;max-height:100%;width:auto;height:auto;
  object-fit:contain;display:block;
}
.gallery-slide figcaption{
  position:absolute;left:0;right:0;bottom:0;
  background:linear-gradient(rgba(6,12,18,0),rgba(6,12,18,.84));
  color:#eaf1f7;font-size:.85rem;line-height:1.5;
  padding:30px 14px 11px;text-align:center;
}
.gallery-tag{
  display:inline-block;background:rgba(11,92,171,.95);color:#fff;
  font-size:.71rem;padding:2px 8px;border-radius:3px;
  margin-right:7px;vertical-align:1px;white-space:nowrap;
}
.gallery-nav{
  position:absolute;top:50%;transform:translateY(-50%);z-index:2;
  width:40px;height:40px;padding:0;border:0;border-radius:50%;cursor:pointer;
  background:rgba(10,20,30,.5);color:#fff;font-size:20px;line-height:1;
  display:flex;align-items:center;justify-content:center;
  transition:background .2s ease;
}
.gallery-nav--prev{left:10px}
.gallery-nav--next{right:10px}
.gallery-nav:hover,.gallery-nav:focus-visible{background:var(--brand)}
.gallery-dots{display:flex;gap:9px;justify-content:center;flex-wrap:wrap;margin-top:14px}
.gallery-dot{
  width:9px;height:9px;padding:0;border:0;border-radius:50%;cursor:pointer;
  background:#c9d6e2;transition:background .2s ease,transform .2s ease;
}
.gallery-dot[aria-current="true"]{background:var(--brand);transform:scale(1.4)}
@media (max-width:639px){
  .gallery-slide{aspect-ratio:3/4}
  .gallery-nav{width:34px;height:34px;font-size:17px}
  .gallery-nav--prev{left:6px}
  .gallery-nav--next{right:6px}
  .gallery-slide figcaption{font-size:.79rem;padding:24px 10px 9px}
}
@media (prefers-reduced-motion:reduce){
  .gallery-track{transition:none}
  .gallery-nav,.gallery-dot{transition:none}
}

/* ---------- 响应式 ---------- */
@media (min-width:640px){
  h1{font-size:2rem}
  h2{font-size:1.5rem}
  .hero h1{font-size:2.05rem}
  .grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:900px){
  .nav-toggle{display:none}
  .site-nav{
    display:block!important;width:auto;padding:0;flex:1;
  }
  .site-nav ul{display:flex;gap:4px;justify-content:center}
  .site-nav li+li{border:0}
  .site-nav a{padding:9px 14px;border-radius:var(--radius);font-size:.95rem}
  .site-nav a:hover{background:var(--brand-light);color:var(--brand-dark)}
  .site-nav a[aria-current="page"]{background:var(--brand-light)}
  .header-cta{display:flex;flex-direction:column;align-items:flex-end;line-height:1.3}
  .header-cta b{color:var(--brand-dark);font-size:1.06rem}
  .header-cta span{font-size:.74rem;color:var(--muted)}
  .grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
  .grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
  .stats{grid-template-columns:repeat(4,minmax(0,1fr))}
  .split{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:40px}
  .split--even{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .section{padding:62px 0}
  .hero{padding:66px 0 58px}
  .footer-grid{grid-template-columns:minmax(0,1.4fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.2fr)}
  .float-call{right:26px;bottom:26px;padding:13px 22px}
}

@media print{
  .site-header,.topbar,.float-call,.contact-band,.site-footer{display:none}
}

/* ===== 内嵌询价框（2026-10-30 新增）===== */
.contact-band--form{background:linear-gradient(180deg,var(--brand-dark),#123a5c)}
.contact-band--form .wrap{max-width:760px}
.inquiry-inline{
  margin-top:18px;display:grid;grid-template-columns:1fr 1fr;gap:12px 16px;align-items:end;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);
  border-radius:10px;padding:18px;
}
.inquiry-inline .form-row{margin-bottom:0}
.inquiry-inline .form-row label{color:#dbe9f7;font-size:.84rem}
.inquiry-inline .form-row input{
  width:100%;background:#fff;color:#132335;border:1px solid #cfd8e3;border-radius:6px;
  padding:10px 12px;font:inherit;
}
.inquiry-inline .form-row:nth-of-type(3){grid-column:1 / -1}
.inquiry-inline button{grid-column:1 / -1;justify-self:start;padding:11px 26px;font-weight:700}
.inquiry-inline button[disabled]{opacity:.65;cursor:default}
.inquiry-inline .form-tip{grid-column:1 / -1;margin:0;font-size:.9rem;font-weight:700;color:#8ef0b6}
.inquiry-inline .form-tip[data-err="1"]{color:#ffc9c9}
.inquiry-inline .form-note{grid-column:1 / -1;margin:2px 0 0;font-size:.84rem;color:#b9d3ea}
.inquiry-inline .form-note a{color:#fff;text-decoration:underline}
@media (max-width:720px){
  .inquiry-inline{grid-template-columns:1fr;padding:16px}
  .inquiry-inline .form-row:nth-of-type(3){grid-column:auto}
  .inquiry-inline button{width:100%;justify-self:stretch}
}