/* ============================================================
   安徽金特塑业有限公司 官网 共享样式表
   主色：工业蓝 #005BAC  |  背景：白 / 浅灰
   用于：index.html / about.html / products.html / equipment.html / contact.html
   ============================================================ */
:root{
  --blue:#005BAC;          /* 主色 - 工业蓝 */
  --blue-dark:#004a8f;     /* 深蓝（悬停/页脚） */
  --blue-deep:#003a72;     /* 更深蓝 */
  --blue-light:#e8f1fb;    /* 浅蓝底 */
  --accent:#f5a623;        /* 点缀橙（数字/高亮） */
  --ink:#1c2b3a;           /* 正文深色 */
  --gray:#5f6f80;          /* 次级文字 */
  --gray-bg:#f5f7fa;       /* 浅灰背景 */
  --line:#e6ebf1;          /* 分割线 */
  --white:#ffffff;
  --shadow:0 8px 28px rgba(12,40,80,.08);
  --shadow-hover:0 16px 40px rgba(12,40,80,.16);
  --radius:12px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);line-height:1.7;background:var(--white);
}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}
img{max-width:100%;display:block;}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px;}

/* 通用：占位图块 */
.ph{
  background:#e9eef4;border:1px dashed #c3cdd9;color:#9aa7b5;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;letter-spacing:2px;user-select:none;
}
.ph::before{content:"图片位置";}

/* 通用：区块标题 */
.section{padding:80px 0;}
.section-head{text-align:center;margin-bottom:48px;}
.section-head .en{
  display:inline-block;color:var(--blue);font-size:13px;letter-spacing:3px;
  text-transform:uppercase;font-weight:700;margin-bottom:8px;
}
.section-head h2{font-size:32px;color:var(--ink);font-weight:700;letter-spacing:1px;}
.section-head .bar{width:52px;height:4px;background:var(--blue);border-radius:2px;margin:16px auto 0;}
.section-head p{color:var(--gray);font-size:15px;margin-top:14px;}

/* ============================================================
   顶部导航栏
   ============================================================ */
header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);transition:box-shadow .3s;
}
header.scrolled{box-shadow:0 4px 20px rgba(12,40,80,.10);}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px;}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.logo-mark{
  height:46px;width:auto;object-fit:contain;display:block;flex-shrink:0;
}
.logo-text{line-height:1.2;}
.logo-text .cn{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:1px;}
.logo-text .en{font-size:10px;color:var(--gray);letter-spacing:1px;text-transform:uppercase;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  padding:10px 16px;font-size:15px;color:var(--ink);border-radius:8px;
  font-weight:500;transition:.2s;position:relative;
}
.nav-links a:hover{color:var(--blue);background:var(--blue-light);}
.nav-links a.active{color:var(--blue);font-weight:700;}
.nav-links a.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:4px;
  height:3px;background:var(--blue);border-radius:2px;
}
/* 导航右侧：电话 + 汉堡 */
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-phone{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--blue);color:#fff;padding:10px 18px;border-radius:8px;
  font-size:15px;font-weight:700;letter-spacing:.5px;transition:.2s;white-space:nowrap;
}
.nav-phone:hover{background:var(--blue-dark);color:#fff;}
.nav-phone svg{width:16px;height:16px;}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:6px;}
.hamburger span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.3s;}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.hamburger.open span:nth-child(2){opacity:0;}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============================================================
   首屏大图区（首页）
   ============================================================ */
.hero{
  position:relative;height:640px;overflow:hidden;color:#fff;
  background:linear-gradient(135deg,#00284f 0%,#005BAC 55%,#00284f 100%);
}
.hero-bg{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:contain;object-position:center;
}
.hero .ph{
  position:absolute;inset:0;background:linear-gradient(135deg,#4a7cb0 0%,#005BAC 55%,#003a72 100%);
  border:none;color:rgba(255,255,255,.85);font-size:18px;letter-spacing:6px;
}
.hero .ph::before{content:"首屏大图 · 图片位置";}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(0,22,46,.66) 0%,rgba(0,22,46,.34) 42%,rgba(0,22,46,0) 68%);
}
.hero-inner{
  position:relative;z-index:2;height:100%;max-width:1180px;margin:0 auto;
  padding:0 24px;display:flex;flex-direction:column;justify-content:center;
}
.hero .badge{
  display:inline-flex;align-items:center;gap:8px;width:max-content;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.35);
  padding:7px 18px;border-radius:30px;font-size:13px;letter-spacing:2px;margin-bottom:26px;
}
.hero h1{font-size:52px;font-weight:800;letter-spacing:3px;line-height:1.2;margin-bottom:20px;text-shadow:0 3px 18px rgba(0,18,42,.65);}
.hero .slogan{font-size:20px;letter-spacing:4px;color:rgba(255,255,255,.95);margin-bottom:36px;font-weight:400;text-shadow:0 2px 12px rgba(0,18,42,.6);}
.hero .btns{display:flex;gap:16px;flex-wrap:wrap;}
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:8px;
  font-size:15px;font-weight:600;letter-spacing:1px;transition:.25s;cursor:pointer;
}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:#e0941a;transform:translateY(-2px);box-shadow:0 10px 26px rgba(245,166,35,.4);}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6);}
.btn-ghost:hover{background:rgba(255,255,255,.15);border-color:#fff;}
.hero .stats{position:absolute;left:0;right:0;bottom:0;z-index:3;background:rgba(0,42,82,.55);backdrop-filter:blur(6px);}
.stats-inner{display:flex;justify-content:space-between;max-width:1180px;margin:0 auto;padding:22px 24px;}
.stat{text-align:center;flex:1;}
.stat .num{font-size:30px;font-weight:800;color:#fff;}
.stat .num span{color:var(--accent);}
.stat .label{font-size:13px;color:rgba(255,255,255,.8);letter-spacing:2px;margin-top:4px;}

/* ============================================================
   内页横幅（子页面共用）
   ============================================================ */
.page-hero{
  position:relative;color:#fff;padding:84px 0;overflow:hidden;
  background:linear-gradient(135deg,#4a7cb0 0%,#005BAC 55%,#003a72 100%);
}
.page-hero::after{content:"";position:absolute;inset:0;background:rgba(0,35,70,.30);}
.page-hero .container{position:relative;z-index:2;}
.page-hero h1{font-size:40px;font-weight:800;letter-spacing:2px;margin-bottom:12px;}
.crumb{font-size:14px;color:rgba(255,255,255,.85);letter-spacing:1px;}
.crumb a:hover{color:#fff;text-decoration:underline;}

/* ============================================================
   核心优势区
   ============================================================ */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.adv-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:36px 28px;text-align:center;transition:.3s;position:relative;overflow:hidden;
}
.adv-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:var(--blue);transform:scaleX(0);transform-origin:left;transition:.35s;
}
.adv-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);}
.adv-card:hover::before{transform:scaleX(1);}
.adv-icon{
  width:64px;height:64px;margin:0 auto 20px;border-radius:14px;
  background:var(--blue-light);display:flex;align-items:center;justify-content:center;
  color:var(--blue);transition:.3s;
}
.adv-card:hover .adv-icon{background:var(--blue);color:#fff;}
.adv-icon svg{width:30px;height:30px;}
.adv-card h3{font-size:18px;margin-bottom:10px;letter-spacing:1px;}
.adv-card p{font-size:14px;color:var(--gray);}

/* ============================================================
   主营产品（首页 2 张醒目卡片）
   ============================================================ */
.feat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
.feat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:.3s;display:flex;flex-direction:column;
}
.feat-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-6px);}
.feat-card .ph{height:250px;font-size:16px;letter-spacing:4px;border-bottom:1px solid var(--line);}
.feat-card .feat-img{width:100%;height:250px;object-fit:contain;display:block;background:#fff;border-bottom:1px solid var(--line);}
.feat-body{padding:30px 30px 34px;display:flex;flex-direction:column;flex:1;}
.feat-body h3{font-size:22px;letter-spacing:1px;margin-bottom:6px;}
.feat-body .en{font-size:13px;color:var(--gray);letter-spacing:1px;margin-bottom:14px;}
.feat-body p{font-size:14px;color:var(--gray);flex:1;text-align:justify;}
.feat-link{
  margin-top:20px;color:var(--blue);font-weight:600;font-size:14px;
  display:inline-flex;align-items:center;gap:6px;width:max-content;transition:.2s;
}
.feat-link:hover{gap:10px;color:var(--blue-dark);}
.feat-link svg{width:16px;height:16px;}

/* ============================================================
   产品详情（products.html）
   ============================================================ */
.pdetail{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-bottom:72px;}
.pdetail:last-child{margin-bottom:0;}
.pdetail .ph{height:380px;border-radius:var(--radius);font-size:16px;letter-spacing:4px;}
.pdetail .media img{width:100%;height:380px;object-fit:cover;object-position:center;border-radius:var(--radius);border:1px solid var(--line);}
.pdetail.rev .media{order:2;}
.pdetail .txt h3{font-size:28px;letter-spacing:1px;margin-bottom:6px;}
.pdetail .txt .en{font-size:14px;color:var(--blue);letter-spacing:2px;margin-bottom:18px;}
.pdetail .txt .desc{font-size:15px;color:var(--gray);text-align:justify;margin-bottom:22px;}
.feature-list{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.feature-list li{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;
  background:var(--blue-light);color:var(--blue-dark);padding:8px 16px;border-radius:20px;
}
.feature-list li svg{width:15px;height:15px;flex-shrink:0;color:var(--blue);}
.tags{display:flex;flex-wrap:wrap;gap:10px;}
.tags span{font-size:13px;padding:6px 14px;border-radius:6px;background:var(--gray-bg);color:var(--gray);}

/* ============================================================
   设备展示区
   ============================================================ */
.equip-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:22px;}
.equip-item{text-align:center;}
.equip-ph{
  aspect-ratio:4/3;border-radius:var(--radius);overflow:hidden;
  background:#eef2f7;border:1px solid var(--line);transition:.3s;
}
.equip-ph img{width:100%;height:100%;object-fit:cover;object-position:center;display:block;}
.equip-item:hover .equip-ph{border-color:var(--blue);box-shadow:var(--shadow);}
.equip-item .name{margin-top:14px;font-size:15px;font-weight:600;letter-spacing:1px;}
.equip-item .en{font-size:12px;color:var(--gray);letter-spacing:1px;margin-top:2px;}
.equip-item .desc{margin-top:10px;font-size:13px;color:var(--gray);line-height:1.6;}

/* 工艺流程（步骤卡片 + 图标） */
.flow{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:12px;margin-top:56px;}
.flow-step{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  width:150px;padding:22px 16px 20px;text-align:center;position:relative;transition:.3s;
}
.flow-step:hover{border-color:var(--blue);box-shadow:var(--shadow);transform:translateY(-4px);}
.flow-icon{width:44px;height:44px;margin:0 auto 12px;display:flex;align-items:center;justify-content:center;color:var(--blue);background:var(--blue-light);border-radius:50%;}
.flow-icon svg{width:22px;height:22px;}
.flow-num{position:absolute;top:12px;right:14px;font-size:12px;font-weight:700;color:#c3cdd9;letter-spacing:1px;}
.flow-title{font-size:16px;font-weight:600;color:var(--blue-dark);letter-spacing:1px;}
.flow-desc{font-size:12px;color:var(--gray);margin-top:6px;line-height:1.5;}
.flow-arrow{color:var(--blue);font-size:22px;font-weight:700;flex-shrink:0;}

/* 设备参数表 */
.spec-block{margin-top:64px;}
.spec-head{text-align:center;margin-bottom:28px;}
.spec-head h3{font-size:22px;letter-spacing:1px;color:var(--ink);}
.spec-head p{font-size:13px;color:var(--gray);margin-top:6px;}
.spec-table-wrap{overflow-x:auto;}
.spec-table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
.spec-table th,.spec-table td{padding:15px 20px;text-align:left;font-size:14px;border-bottom:1px solid var(--line);}
.spec-table thead th{background:var(--blue);color:#fff;font-weight:600;letter-spacing:1px;white-space:nowrap;}
.spec-table tbody tr:last-child td{border-bottom:none;}
.spec-table tbody tr:hover{background:var(--gray-bg);}
.spec-table td:first-child{font-weight:600;color:var(--blue-dark);white-space:nowrap;}

/* ============================================================
   图片画廊（仓库展示 / 公司实景 / 公司形象）
   ============================================================ */
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.gallery-item{text-align:center;}
.gallery-item a{display:block;overflow:hidden;border-radius:var(--radius);}
.gallery-item img{
  width:100%;aspect-ratio:4/3;object-fit:cover;object-position:center;
  border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);transition:.3s;background:#eef2f7;
}
.gallery-item img:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.gallery-item .cap{margin-top:12px;font-size:14px;color:var(--gray);letter-spacing:1px;}

/* ============================================================
   关于我们
   ============================================================ */
.about-inner{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.about-text h2{font-size:30px;margin-bottom:8px;letter-spacing:1px;}
.about-text .lead{color:var(--blue);font-weight:600;font-size:16px;margin-bottom:20px;}
.about-text p{color:var(--gray);font-size:15px;margin-bottom:16px;text-align:justify;}
.about-facts{margin-top:28px;display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.fact{background:var(--gray-bg);border-left:3px solid var(--blue);padding:14px 18px;border-radius:6px;}
.fact .k{font-size:13px;color:var(--gray);letter-spacing:1px;}
.fact .v{font-size:15px;font-weight:600;color:var(--ink);margin-top:2px;}
.about-media .ph{height:420px;border-radius:var(--radius);font-size:16px;letter-spacing:4px;}
.about-media img{
  width:100%;height:420px;object-fit:cover;border-radius:var(--radius);
}

/* ============================================================
   经营理念区（引言样式）
   ============================================================ */
.philosophy{background:linear-gradient(135deg,var(--blue-deep),var(--blue) 60%,var(--blue-dark));color:#fff;}
.philosophy .section-head h2{color:#fff;}
.philosophy .section-head .bar{background:var(--accent);}
.philosophy .section-head p{color:rgba(255,255,255,.75);}
.quote-wrap{max-width:860px;margin:0 auto;text-align:center;position:relative;padding:0 10px;}
.quote-mark{font-size:90px;line-height:1;color:var(--accent);opacity:.9;font-family:Georgia,serif;height:50px;}
.quote-text{font-size:19px;line-height:2.1;letter-spacing:1px;color:rgba(255,255,255,.95);text-align:center;margin:10px 0 34px;font-weight:400;}
.quote-text em{color:var(--accent);font-style:normal;font-weight:600;}
.quote-sign{font-size:14px;color:rgba(255,255,255,.8);letter-spacing:3px;}
.quote-sign b{font-size:16px;color:#fff;}

/* ============================================================
   联系方式区
   ============================================================ */
.contact-grid{display:grid;grid-template-columns:380px 1fr;gap:34px;}
.contact-info{display:flex;flex-direction:column;gap:18px;}
.contact-card{
  display:flex;gap:16px;align-items:flex-start;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;transition:.25s;
}
.contact-card:hover{box-shadow:var(--shadow);border-color:var(--blue-light);}
.contact-card .ic{
  width:46px;height:46px;border-radius:10px;background:var(--blue-light);
  color:var(--blue);display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.contact-card .ic svg{width:22px;height:22px;}
.contact-card .k{font-size:13px;color:var(--gray);letter-spacing:1px;margin-bottom:3px;}
.contact-card .v{font-size:15px;font-weight:600;color:var(--ink);}
.contact-card .v a{color:var(--blue);}
.contact-card .v a:hover{color:var(--blue-dark);text-decoration:underline;}
.contact-card .qr-img{width:116px;height:116px;object-fit:contain;margin-top:12px;border:1px solid var(--line);border-radius:8px;background:#fff;display:block;}
.map-wrap{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);}
.map-wrap .ph{height:100%;min-height:380px;font-size:16px;letter-spacing:4px;}
.map-wrap iframe{width:100%;height:100%;min-height:380px;border:0;display:block;}
.map-wrap .ph::before{content:"地图占位 · 图片位置";}

/* ============================================================
   页脚
   ============================================================ */
footer{background:var(--blue-deep);color:rgba(255,255,255,.8);padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;padding-bottom:40px;}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:18px;letter-spacing:1px;}
.footer-col p,.footer-col li{font-size:14px;line-height:2;color:rgba(255,255,255,.72);}
.footer-col a{color:rgba(255,255,255,.72);}
.footer-col a:hover{color:#fff;}
.footer-brand .logo-mark{}
.footer-brand p{margin-top:14px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.15);padding:20px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.55);letter-spacing:1px;}

/* ============================================================
   样品展示区 + 灯箱（products.html）
   ============================================================ */
.sample-tabs{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:34px;}
.sample-tab{
  border:1px solid var(--line);background:#fff;color:var(--gray);
  padding:9px 22px;border-radius:30px;font-size:14px;letter-spacing:1px;
  cursor:pointer;transition:.2s;font-family:inherit;
}
.sample-tab:hover{color:var(--blue);border-color:var(--blue);}
.sample-tab.active{background:var(--blue);color:#fff;border-color:var(--blue);}
.sample-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;}
.sample{
  position:relative;border:none;background:none;cursor:pointer;padding:0;
  border-radius:10px;overflow:hidden;font-family:inherit;
}
.sample .thumb{
  display:flex;align-items:center;justify-content:center;
  aspect-ratio:4/3;background:#e9eef4;border:1px dashed #c3cdd9;color:#9aa7b5;
  font-size:13px;letter-spacing:1px;text-align:center;padding:10px;transition:.25s;
  position:relative;overflow:hidden;
}
.sample .thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.sample::after{
  content:attr(data-cap);position:absolute;left:0;right:0;bottom:0;padding:7px 10px;
  background:linear-gradient(transparent,rgba(0,30,62,.85));color:#fff;
  font-size:12px;letter-spacing:1px;opacity:0;transition:.25s;pointer-events:none;
}
.sample:hover::after{opacity:1;}
.sample:hover .thumb{border-color:var(--blue);box-shadow:var(--shadow);color:var(--blue);}

/* 灯箱 */
.lightbox{
  position:fixed;inset:0;z-index:200;background:rgba(0,20,42,.92);
  display:none;align-items:center;justify-content:center;flex-direction:column;padding:40px;
}
.lightbox.open{display:flex;}
.lb-fig{max-width:900px;width:100%;text-align:center;}
.lb-media{
  background:#e9eef4;border-radius:12px;overflow:hidden;
  display:flex;align-items:center;justify-content:center;
}
.lb-media img{max-width:100%;max-height:70vh;object-fit:contain;display:block;margin:0 auto;}
.lb-media .lb-empty{
  width:100%;min-height:320px;display:flex;align-items:center;justify-content:center;
  color:#9aa7b5;font-size:15px;letter-spacing:2px;background:#e9eef4;
}
.lb-cap{margin-top:16px;color:#fff;font-size:15px;letter-spacing:1px;}
.lb-close{
  position:absolute;top:22px;right:30px;background:none;border:none;color:#fff;
  font-size:44px;line-height:1;cursor:pointer;opacity:.8;transition:.2s;
}
.lb-close:hover{opacity:1;}
.lb-nav{
  position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.12);
  border:none;color:#fff;font-size:38px;width:54px;height:54px;border-radius:50%;
  cursor:pointer;opacity:.85;transition:.2s;line-height:1;
}
.lb-nav:hover{opacity:1;background:rgba(255,255,255,.22);}
.lb-prev{left:22px;}
.lb-next{right:22px;}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:960px){
  .adv-grid{grid-template-columns:repeat(2,1fr);}
  .equip-grid{grid-template-columns:repeat(3,1fr);}
  .gallery-grid{grid-template-columns:repeat(2,1fr);}
  .sample-grid{grid-template-columns:repeat(4,1fr);}
  .about-inner{grid-template-columns:1fr;gap:36px;}
  .contact-grid{grid-template-columns:1fr;}
  .feat-grid{grid-template-columns:1fr;}
  .pdetail{grid-template-columns:1fr;gap:28px;}
  .pdetail.rev .media{order:0;}
  .hero h1{font-size:38px;}
  .hero .slogan{font-size:17px;letter-spacing:2px;}
}
@media (max-width:720px){
  .hamburger{display:flex;}
  .nav-links{
    display:none;position:absolute;top:72px;left:0;right:0;
    background:#fff;flex-direction:column;align-items:stretch;
    padding:12px 20px 20px;box-shadow:0 12px 30px rgba(0,0,0,.12);
    border-bottom:1px solid var(--line);
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:14px 12px;border-bottom:1px solid var(--gray-bg);}
  /* 电话按钮手机端保持可见 */
  .nav-phone{padding:9px 14px;font-size:14px;}
  .nav-phone .num{letter-spacing:.5px;}
  .logo-text .en{display:none;}
  .equip-grid{grid-template-columns:repeat(2,1fr);}
  .gallery-grid{grid-template-columns:1fr;}
  .sample-grid{grid-template-columns:repeat(2,1fr);}
  .lb-nav{width:44px;height:44px;font-size:30px;}
  .lb-prev{left:10px;}
  .lb-next{right:10px;}
  .stats-inner{flex-wrap:wrap;gap:14px;}
  .stat{flex:1 1 45%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .section{padding:56px 0;}
  .section-head h2{font-size:26px;}
  .hero{height:560px;}
  .hero-bg{object-fit:contain;}
  .hero h1{font-size:30px;letter-spacing:1px;}
  .page-hero{padding:60px 0;}
  .page-hero h1{font-size:30px;}
}
@media (max-width:420px){
  .nav-phone .num{display:none;}
  .nav-phone svg{width:18px;height:18px;}
  .nav-phone{padding:10px 12px;}
}