/* 广州神粤机械技术有限公司 —— 国内站样式（移动优先） */

:root{
  --navy:#12406F;
  --navy-dark:#0C2E50;
  --orange:#E8590C;
  --orange-soft:#FFF1E8;
  --ink:#1F2933;
  --ink-2:#55606D;
  --ink-3:#8A939D;
  --line:#E3E7EC;
  --bg:#F6F8FA;
  --white:#fff;
  --radius:12px;
  --shadow:0 2px 10px rgba(18,64,111,.06);
  --max:1200px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  font-size:15px;line-height:1.7;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--max);margin:0 auto;padding:0 16px}

/* ---------- 顶栏 ---------- */
.topbar{background:var(--navy-dark);color:#C9D6E4;font-size:13px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;gap:12px;height:36px;flex-wrap:wrap}
.topbar b{color:#fff;font-weight:500}
.topbar a{color:#fff}

/* ---------- 头部导航 ---------- */
.site-header{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:66px;gap:16px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;min-width:0}
.logo-mark{
  width:38px;height:38px;border-radius:9px;background:var(--navy);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:500;font-size:17px;flex:0 0 auto;
}
.logo-text{min-width:0}
.logo-name{font-size:16px;font-weight:500;color:var(--navy);line-height:1.25;white-space:nowrap}
.logo-sub{font-size:11px;color:var(--ink-3);line-height:1.3;white-space:nowrap}

.nav{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end;margin-left:auto}
.nav a{font-size:14px;color:var(--ink-2);padding:4px 0;border-bottom:2px solid transparent;white-space:nowrap;flex:0 0 auto;word-break:keep-all}
.nav a:hover{color:var(--navy)}
.nav a.active{color:var(--navy);font-weight:500;border-bottom-color:var(--orange)}
.header-phone{display:flex;align-items:center;gap:8px}
.header-phone .ph{font-size:17px;font-weight:500;color:var(--orange);white-space:nowrap}
.header-phone .ph-sub{font-size:11px;color:var(--ink-3);display:block}

.nav-toggle{display:none}
.nav-toggle-label{display:none;width:38px;height:38px;border:1px solid var(--line);border-radius:9px;align-items:center;justify-content:center;cursor:pointer}
.nav-toggle-label span,.nav-toggle-label span::before,.nav-toggle-label span::after{
  content:"";display:block;width:18px;height:2px;background:var(--navy);position:relative;
}
.nav-toggle-label span::before{position:absolute;top:-6px}
.nav-toggle-label span::after{position:absolute;top:6px}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(160deg,var(--navy) 0%,var(--navy-dark) 100%);color:#fff;padding:56px 0 48px}
.hero h1{margin:0 0 14px;font-size:30px;line-height:1.35;font-weight:500}
.hero h1 em{font-style:normal;color:#FFB27A}
.hero p{margin:0 0 22px;color:#C9D6E4;font-size:16px;max-width:720px}
.hero-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}
.hero-tags span{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:4px 12px;font-size:13px}
.btn-row{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:10px;font-size:15px;font-weight:500;border:1px solid transparent;cursor:pointer}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:#CF4D08}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.35)}
.btn-outline{background:#fff;color:var(--navy);border-color:var(--line)}
.btn-sm{padding:9px 16px;font-size:14px}

/* ---------- 通用区块 ---------- */
.section{padding:44px 0}
.section-head{margin-bottom:24px}
.section-head h2{margin:0 0 6px;font-size:23px;font-weight:500;color:var(--navy)}
.section-head p{margin:0;color:var(--ink-2);font-size:14px}
.section-head.center{text-align:center}
.bg-white{background:var(--white)}

/* ---------- 指标 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.stat{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:20px 18px;box-shadow:var(--shadow)}
.stat b{display:block;font-size:26px;color:var(--orange);font-weight:500;line-height:1.2}
.stat span{display:block;font-size:14px;font-weight:500;margin-top:4px}
.stat i{font-style:normal;display:block;font-size:12px;color:var(--ink-3);margin-top:2px}

/* ---------- 卡片网格 ---------- */
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow);transition:.18s;display:block;
}
.card:hover{border-color:#BBD0E4;transform:translateY(-2px)}
.card h3{margin:0 0 8px;font-size:17px;font-weight:500;color:var(--navy);display:flex;align-items:baseline;gap:8px}
.card h3 small{font-size:11px;color:var(--ink-3);font-weight:400;letter-spacing:.3px}
.card p{margin:0;color:var(--ink-2);font-size:13.5px}
.card .more{display:inline-block;margin-top:12px;color:var(--orange);font-size:13px;font-weight:500}

/* ---------- chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{background:var(--white);border:1px solid var(--line);border-radius:8px;padding:7px 14px;font-size:14px;color:var(--ink-2)}
.chip:hover{border-color:var(--orange);color:var(--orange)}
.chip-static{background:#EEF3F8;border-color:#DCE5EE;color:var(--navy)}

/* ---------- 品牌 ---------- */
.brand-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.brand-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:18px 12px;text-align:center}
.brand-card b{display:block;font-size:16px;color:var(--navy);font-weight:500}
.brand-card small{display:block;font-size:11px;color:var(--ink-3);margin-top:2px}
.brand-card em{display:inline-block;margin-top:10px;font-style:normal;font-size:11px;background:var(--orange-soft);color:var(--orange);border-radius:5px;padding:2px 8px}
.other-brands{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.other-brands span{background:#EEF3F8;border-radius:7px;padding:6px 12px;font-size:13px;color:var(--ink-2)}

/* ---------- 说明条 ---------- */
.notice{background:#FFFBF5;border:1px solid #F6DFC7;border-left:3px solid var(--orange);border-radius:10px;padding:14px 16px;font-size:13.5px;color:#7A4A1E;line-height:1.75}

/* ---------- 相册占位 ---------- */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.gallery .ph-item{
  background:#E8EDF2;border:1px dashed #C3CEDA;border-radius:10px;height:150px;
  display:flex;align-items:center;justify-content:center;color:#7E8B99;font-size:13px;text-align:center;padding:10px;
}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.flow-step{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:16px;position:relative}
.flow-step b{display:block;font-size:13px;color:var(--orange);margin-bottom:6px;font-weight:500}
.flow-step span{font-size:13px;color:var(--ink-2);display:block}

/* ---------- 产品详情 ---------- */
.page-head{background:var(--white);border-bottom:1px solid var(--line);padding:26px 0}
.page-head h1{margin:0 0 6px;font-size:25px;font-weight:500;color:var(--navy)}
.crumb{font-size:13px;color:var(--ink-3)}
.crumb a:hover{color:var(--orange)}
.item-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.item{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:14px 16px;font-size:14px}
.item-list{display:grid;grid-template-columns:repeat(2,1fr);gap:8px 24px;padding:0;margin:0;list-style:none}
.item-list li{font-size:14px;color:var(--ink-2);border-bottom:1px dashed var(--line);padding:9px 0}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--navy);color:#fff;border-radius:14px;padding:28px 26px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.cta-band h3{margin:0 0 6px;font-size:20px;font-weight:500}
.cta-band p{margin:0;color:#C9D6E4;font-size:14px}

/* ---------- 表单 ---------- */
.form{display:grid;gap:14px;max-width:560px}
.form label{font-size:14px;font-weight:500;display:block;margin-bottom:6px}
.form input,.form textarea,.form select{
  width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:9px;font-size:15px;
  font-family:inherit;background:#fff;color:var(--ink);
}
.form input:focus,.form textarea:focus,.form select:focus{outline:none;border-color:var(--navy)}

/* ---------- 页脚 ---------- */
.footer{background:var(--navy-dark);color:#A9BACB;font-size:13.5px;padding:36px 0 24px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:26px;margin-bottom:24px}
.footer h4{margin:0 0 10px;font-size:14px;color:#fff;font-weight:500}
.footer a:hover{color:#fff}
.footer p{margin:0 0 6px;line-height:1.8}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:16px;font-size:12.5px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* ---------- 悬浮联系 ---------- */
.float-contact{position:fixed;right:16px;bottom:20px;z-index:80;display:flex;flex-direction:column;gap:10px}
.fc-item{
  width:58px;height:58px;border-radius:50%;background:var(--orange);color:#fff;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  font-size:11px;box-shadow:0 4px 14px rgba(232,89,12,.35);text-align:center;line-height:1.2;
}
.fc-item.blue{background:var(--navy);box-shadow:0 4px 14px rgba(18,64,111,.3)}
.fc-item b{font-size:13px;font-weight:500}

/* ---------- 响应式 ---------- */
@media (max-width:1120px){
  .nav{gap:12px}
  .nav a{font-size:13px}
  .logo-name{font-size:15px}
}
@media (max-width:1020px){
  .nav{gap:9px}
  .nav a{font-size:12.5px}
  .logo-name{font-size:14px}
  .logo-sub{font-size:10.5px}
  .header-phone .ph{font-size:15px}
}
@media (max-width:980px){
  .header-phone{display:none}
  .stats{grid-template-columns:repeat(2,1fr)}
  .grid-4,.grid-3{grid-template-columns:repeat(2,1fr)}
  .brand-grid{grid-template-columns:repeat(3,1fr)}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .item-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:760px){
  .nav-toggle-label{display:flex}
  .nav{
    display:none;position:absolute;left:0;right:0;top:66px;background:#fff;
    flex-direction:column;align-items:stretch;gap:0;border-bottom:1px solid var(--line);
    box-shadow:0 12px 20px rgba(0,0,0,.06);
  }
  .nav a{padding:14px 18px;border-bottom:1px solid var(--line);font-size:15px}
  .nav-toggle:checked ~ .nav{display:flex}
  .header-phone .ph-sub{display:none}
  .hero{padding:38px 0 34px}
  .hero h1{font-size:23px}
  .hero p{font-size:15px}
  .section{padding:32px 0}
  .section-head h2{font-size:20px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .brand-grid{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:1fr}
  .item-grid{grid-template-columns:1fr}
  .item-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:22px 18px}
  .float-contact{right:12px;bottom:14px}
  .fc-item{width:52px;height:52px}
}

/* ---------- 素材上站补充样式 ---------- */
.logo-img { height: 44px; width: auto; display: block; }
.card-media { overflow: hidden; }
.card-media > img {
  width: 100%; aspect-ratio: 1 / 1; object-fit: cover;
  border-radius: var(--radius); margin-bottom: 14px; background: #fff;
}
.cat-head { display: flex; gap: 26px; align-items: center; }
.cat-head > div { flex: 1; }
.cat-hero {
  width: 210px; aspect-ratio: 1 / 1; object-fit: cover;
  border-radius: var(--radius); background: #fff; flex: none;
  box-shadow: 0 2px 10px rgba(0,0,0,.08);
}
@media (max-width: 720px) { .cat-head { flex-direction: column; align-items: flex-start; } .cat-hero { width: 100%; max-width: 320px; } }
.gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.ph-item { margin: 0; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.ph-item img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; }
.ph-item.cert img { aspect-ratio: auto; }
.ph-item figcaption { padding: 9px 12px; font-size: 13px; color: var(--ink-2); }
.brand-card img { max-height: 56px; max-width: 130px; object-fit: contain; margin-bottom: 10px; }

/* ---------- 关于我们：品牌简介 ---------- */
.brand-lead{font-size:16px;line-height:1.85;color:var(--ink)}
.brand-main-list{margin:0 0 18px;padding-left:22px;color:var(--ink-2);font-size:15px;line-height:1.9}
.brand-main-list li{margin-bottom:5px}
.sub-note{margin:20px 0 10px;font-size:14px;font-weight:500;color:var(--navy)}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.tl-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px}
.tl-year{font-size:17px;font-weight:500;color:var(--orange);line-height:1.3}
.tl-title{font-size:14px;font-weight:500;color:var(--navy);margin:7px 0 5px}
.tl-desc{font-size:13px;color:var(--ink-2);line-height:1.6}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 13px;font-size:13px;color:var(--ink-2)}
.chips.dark span{background:rgba(18,64,111,.06);border-color:rgba(18,64,111,.14);color:var(--navy);font-weight:500}
.adv-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px}
.adv-card h3{margin:0 0 8px;font-size:15px;color:var(--navy);font-weight:500;line-height:1.5}
.adv-card h3 i{font-style:normal;color:var(--orange);margin-right:7px;font-size:13px}
.adv-card p{margin:0;font-size:14px;color:var(--ink-2);line-height:1.7}
.philosophy{background:var(--navy);color:#DCE6F0;border-radius:var(--radius);padding:26px 28px}
.philosophy p{margin:0 0 12px;font-size:15px;line-height:1.9}
.philosophy p:last-child{margin-bottom:0}
@media (max-width:980px){.timeline{grid-template-columns:repeat(2,1fr)}}
@media (max-width:760px){.timeline{grid-template-columns:1fr}.philosophy{padding:20px 18px}}