/* ============================================================
   河南智杰优搬运设备有限公司 官网样式
   蓝色主题 / 系统字体（无webfont，规避字体侵权）/ 全站响应式
   ============================================================ */
:root{
  --navy:#0b2a55;--blue:#0d47a1;--blue2:#1565c0;--blue3:#1e88e5;
  --sky:#e8f2fc;--line:#dbe7f5;--txt:#22303f;--mut:#5d6d7e;
  --bg:#f6f9fd;--gold:#f5a623;--shadow:0 10px 30px rgba(13,71,161,.10);
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
/* 锚点跳转时为固定头部留出间距 */
section[id]{scroll-margin-top:80px}
body{font-family:"PingFang SC","Microsoft YaHei","Segoe UI",Arial,sans-serif;color:var(--txt);background:#fff;font-size:15px;line-height:1.7}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 16px}

/* ---------- 顶部信息条 ---------- */
.top-bar{background:var(--navy);color:#cfe0f5;font-size:13px}
.top-bar .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:4px 18px;padding-top:8px;padding-bottom:8px}
.top-bar b{color:#fff;font-weight:600}

/* ---------- 头部导航 ---------- */
.header{position:sticky;top:0;z-index:99;background:#fff;box-shadow:0 2px 12px rgba(11,42,85,.08);transition:box-shadow .3s}
.header.scrolled{box-shadow:0 6px 20px rgba(11,42,85,.14)}
.header .container{display:flex;align-items:center;justify-content:space-between;height:74px}
.logo{display:flex;align-items:center;gap:10px;min-width:0}
.logo img{height:46px;width:auto}
.logo-name{font-size:21px;font-weight:800;color:var(--navy);letter-spacing:.5px;white-space:nowrap}
.logo-name sup{font-size:11px;color:var(--blue2);margin-left:1px}
.logo-sub{font-size:12.5px;color:var(--mut);white-space:nowrap;display:flex;align-items:center;gap:6px}
.logo-sub::before{content:"";display:inline-block;width:1px;height:12px;background:var(--line)}
.nav{display:flex;align-items:center;gap:2px}
.nav a{display:block;padding:8px 14px;font-size:15px;color:var(--txt);border-radius:6px;position:relative}
.nav a:hover{color:var(--blue2)}
.nav a.active{color:var(--blue2);font-weight:600}
.nav a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--blue2)}
.nav .nav-cta{background:linear-gradient(135deg,var(--blue),var(--blue3));color:#fff;padding:9px 18px;border-radius:20px;font-weight:600}
.nav .nav-cta:hover{opacity:.9;color:#fff}
.nav .nav-cta::after{display:none}
.menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:6px;font-size:20px;line-height:1;color:var(--navy);padding:6px 10px;cursor:pointer}

/* ---------- Banner 动态轮播 ---------- */
.banner{position:relative;height:520px;overflow:hidden;background:var(--navy)}
.banner-slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .9s ease;display:flex;align-items:center}
.banner-slide.active{opacity:1;visibility:visible;z-index:2}
.banner-slide::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,42,85,.82) 0%,rgba(13,71,161,.72) 55%,rgba(21,101,192,.62) 100%);z-index:1}
.banner-slide::after{content:"";position:absolute;inset:0;background:
  radial-gradient(900px 320px at 82% 18%,rgba(255,255,255,.10),transparent 60%),
  repeating-linear-gradient(115deg,rgba(255,255,255,.045) 0 2px,transparent 2px 90px);z-index:2}
.banner-content{position:relative;z-index:3;max-width:1200px;margin:0 auto;padding:0 16px;width:100%}
.banner-eyebrow{display:inline-block;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);color:#dcebff;font-size:13px;letter-spacing:2px;padding:4px 14px;border-radius:16px;margin-bottom:18px}
.banner-title{color:#fff;font-size:42px;line-height:1.28;font-weight:800;letter-spacing:1px;text-shadow:0 3px 14px rgba(4,20,45,.35)}
.banner-title span{color:var(--gold)}
.banner-sub{color:#d7e6fa;font-size:16.5px;margin:16px 0 26px;max-width:640px}
.banner-btns{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;padding:11px 30px;border-radius:24px;font-size:15.5px;font-weight:600;transition:.25s}
.btn-primary{background:#fff;color:var(--blue)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.2)}
.btn-outline{border:1.5px solid rgba(255,255,255,.75);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.14)}
.banner-dots{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:5}
.banner-dots li{width:26px;height:5px;border-radius:3px;background:rgba(255,255,255,.35);cursor:pointer;transition:.3s}
.banner-dots li.active{background:#fff;width:38px}

/* ---------- 数据条 ---------- */
.stats{background:linear-gradient(120deg,var(--blue) 0%,var(--blue2) 55%,var(--blue3) 100%);color:#fff}
.stats .container{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding-top:30px;padding-bottom:30px}
.stat b{display:block;font-size:30px;font-weight:800;letter-spacing:.5px}
.stat b i{font-style:normal;font-size:16px;font-weight:600;margin-left:3px}
.stat span{font-size:13.5px;color:#d5e6fb}

/* ---------- 通用区块 ---------- */
.sec{padding:70px 0}
.sec-alt{background:var(--bg)}
.sec-title{text-align:center;margin-bottom:44px}
.sec-title h2{font-size:28px;color:var(--navy);font-weight:800;letter-spacing:1px}
.sec-title h2 em{font-style:normal;color:var(--blue2)}
.sec-title p{color:var(--mut);font-size:14.5px;margin-top:10px}
.sec-title::after{content:"";display:block;width:46px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--blue2),var(--blue3));margin:16px auto 0}

/* ---------- 核心优势 ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.adv-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:28px 24px;text-align:center;transition:.3s}
.adv-item:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#bcd4f0}
.adv-icon{width:52px;height:52px;line-height:52px;margin:0 auto 14px;border-radius:50%;background:linear-gradient(135deg,var(--sky),#d3e6fa);color:var(--blue2);font-size:24px;font-weight:800}
.adv-item h4{font-size:17px;color:var(--navy);margin-bottom:8px}
.adv-item p{font-size:13.5px;color:var(--mut)}

/* ---------- 公司简介 ---------- */
.about-split{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center}
.about-split h3{font-size:22px;color:var(--navy);margin-bottom:14px}
.about-split h3 em{font-style:normal;color:var(--blue2)}
.about-split p{color:var(--mut);font-size:14.5px;margin-bottom:10px;text-align:justify}
.about-more{display:inline-block;margin-top:8px;color:var(--blue2);font-weight:600;border-bottom:1.5px solid var(--blue2);padding-bottom:2px}
.photo-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.photo-grid img{width:100%;height:170px;object-fit:cover;border-radius:10px;box-shadow:var(--shadow)}
@media (max-width:640px){.photo-grid img{height:130px}}

/* ---------- 产品分类与产品卡 ---------- */
.pcat-head{display:flex;align-items:flex-end;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.pcat-head .t{display:flex;align-items:center;gap:12px}
.pcat-tag{background:linear-gradient(135deg,var(--blue),var(--blue3));color:#fff;font-size:13px;padding:3px 12px;border-radius:14px;letter-spacing:1px}
.pcat-head h3{font-size:23px;color:var(--navy);font-weight:800}
.pcat-head a{color:var(--blue2);font-size:14px;font-weight:600}
.pcat-head a:hover{text-decoration:underline}
.pcat-desc{color:var(--mut);font-size:14.5px;margin-bottom:22px;max-width:900px;text-align:justify}
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(212px,1fr));gap:16px}
.pcard{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;transition:.3s;display:block}
.pcard:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#bcd4f0}
.pcard img{width:100%;aspect-ratio:4/3;object-fit:cover;background:#eef4fb}
.pcard h3{font-size:14.5px;font-weight:600;color:var(--txt);text-align:center;padding:11px 10px;line-height:1.45}
.pcard:hover h3{color:var(--blue2)}

/* ---------- 明星机型参数 ---------- */
.spec-wrap{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:30px}
.spec-card{background:linear-gradient(135deg,var(--navy) 0%,var(--blue) 60%,var(--blue2) 100%);border-radius:14px;padding:28px;color:#fff}
.spec-card h4{font-size:19px;margin-bottom:4px}
.spec-card .sz{color:#bcd6f7;font-size:13.5px;margin-bottom:14px}
.spec-card dl{display:grid;grid-template-columns:1fr 1fr;gap:9px 16px;font-size:13.5px}
.spec-card dt{color:#a9c8f0}
.spec-card dd{color:#fff;font-weight:600}

/* ---------- 应用领域 ---------- */
.app-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.app-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px 18px;text-align:center;transition:.3s}
.app-item:hover{box-shadow:var(--shadow);transform:translateY(-4px);border-color:#bcd4f0}
.app-ic{width:46px;height:46px;line-height:46px;margin:0 auto 10px;border-radius:12px;background:linear-gradient(135deg,var(--blue),var(--blue3));color:#fff;font-size:19px;font-weight:800}
.app-item h4{font-size:15.5px;color:var(--navy);margin-bottom:6px}
.app-item p{font-size:12.8px;color:var(--mut)}

/* ---------- 应用领域图卡（12项，4/3/2列均整行对齐） ---------- */
.field-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.field-card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.3s;display:block}
.field-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#bcd4f0}
.field-card img{width:100%;aspect-ratio:4/3;object-fit:cover;background:#eef4fb}
.field-card .fc-body{padding:14px 12px 16px;text-align:center}
.field-card h4{font-size:15.5px;color:var(--navy);margin-bottom:4px}
.field-card p{font-size:12.8px;color:var(--mut)}

/* ---------- 合作案例 ---------- */
.case-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px 20px}
.case-item{background:#fff;border:1px solid var(--line);border-left:3px solid var(--blue2);border-radius:8px;padding:12px 16px;font-size:13.8px;color:#42506b}
.case-item b{color:var(--navy)}

/* ---------- FAQ（默认全部展开） ---------- */
.faq-list{max-width:900px;margin:0 auto}
details.faq-item{background:#fff;border:1px solid var(--line);border-radius:10px;margin-bottom:12px;overflow:hidden}
details.faq-item[open]{border-color:#bcd4f0;box-shadow:var(--shadow)}
details.faq-item summary{cursor:pointer;list-style:none;padding:15px 46px 15px 18px;font-size:15.5px;font-weight:600;color:var(--navy);position:relative}
details.faq-item summary::-webkit-details-marker{display:none}
details.faq-item summary::after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);font-size:20px;color:var(--blue2);font-weight:700;transition:.25s}
details.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-a{padding:0 18px 16px;color:var(--mut);font-size:14px;border-top:1px dashed var(--line);padding-top:12px;margin:0 0 0}
.faq-a p{margin:12px 0 0;text-align:justify}

/* ---------- 联系条 ---------- */
.cstrip{background:linear-gradient(120deg,var(--navy),var(--blue) 60%,var(--blue2));color:#fff;border-radius:16px;padding:34px 36px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.cstrip h3{font-size:22px}
.cstrip p{color:#cfe2fa;font-size:14px;margin-top:4px}
.cstrip .tel{font-size:26px;font-weight:800;letter-spacing:1px}
.cstrip .btn{background:#fff;color:var(--blue)}

/* ---------- 页脚 ---------- */
.footer{background:var(--navy);color:#b9cde8;margin-top:70px}
.footer .fmain{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:30px;padding:46px 0 34px}
.footer h5{color:#fff;font-size:16px;margin-bottom:14px}
.footer p,.footer a{font-size:13.5px;line-height:2}
.footer a:hover{color:#fff}
.fnav{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.flogo{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.flogo img{height:42px;background:#fff;border-radius:6px;padding:4px}
.flogo b{color:#fff;font-size:18px}
.copy{border-top:1px solid rgba(255,255,255,.12);text-align:center;padding:16px 12px;font-size:13px;color:#8fa9cc}
.copy a{color:#cfe0f5}

/* ---------- 城市分站链接 ---------- */
.citylinks{background:#fff;border-top:1px solid var(--line);padding:18px 0;font-size:13px;color:var(--mut);line-height:2.1}
.citylinks a{margin-right:12px;color:#5d7ba6}
.citylinks a:hover{color:var(--blue2);text-decoration:underline}

/* ---------- 悬浮按钮 ---------- */
.to-top{position:fixed;right:18px;bottom:22px;width:44px;height:44px;border-radius:50%;background:var(--blue2);color:#fff;border:0;font-size:17px;cursor:pointer;opacity:0;visibility:hidden;transition:.3s;z-index:98;box-shadow:0 6px 18px rgba(13,71,161,.35)}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{background:var(--blue)}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- 子页面Hero · 简洁大方版 ---------- */
.page-hero{background:linear-gradient(120deg,#0b2a55 0%,#0d47a1 55%,#1565c0 100%);color:#fff;padding:72px 16px 80px;position:relative;overflow:hidden;background-size:cover;background-position:center;min-height:420px;display:flex;align-items:center;text-align:center}
.page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,42,85,.72) 0%,rgba(13,71,161,.58) 55%,rgba(21,101,192,.42) 100%);z-index:1}
.page-hero::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(115deg,rgba(255,255,255,.04) 0 2px,transparent 2px 90px);z-index:2}
.page-hero .container{position:relative;z-index:3}
.page-hero .crumb{font-size:12.5px;color:rgba(255,255,255,.6);letter-spacing:1px;margin-bottom:24px}
.page-hero .crumb a{color:rgba(255,255,255,.75);transition:.2s}
.page-hero .crumb a:hover{color:#fff}
.page-hero .crumb .sep{opacity:.4;margin:0 6px}
.page-hero h1{font-size:48px;font-weight:800;letter-spacing:1px;color:#fff;margin-bottom:16px;text-shadow:0 2px 12px rgba(0,0,0,.25)}
.page-hero .sub{color:rgba(255,255,255,.8);font-size:17px;margin:0 auto;max-width:640px;line-height:1.7;font-weight:500}
@media (max-width:640px){
  .page-hero{padding:48px 16px 54px;min-height:320px}
  .page-hero h1{font-size:32px}
  .page-hero .sub{font-size:14.5px}
  .page-hero .crumb{margin-bottom:18px;font-size:11.5px}
}

/* ============================================================
   城市分站 6 种界面变体（body.cv1 ~ cv6）
   ============================================================ */
.city-hero{position:relative;color:#fff;padding:74px 16px;overflow:hidden}
.city-hero .container{position:relative;z-index:3}
.city-hero .chip{display:inline-block;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);border-radius:16px;font-size:13px;padding:4px 14px;letter-spacing:2px;margin-bottom:16px}
.city-hero h1{font-size:36px;font-weight:800;letter-spacing:1px;line-height:1.3}
.city-hero h1 span{color:var(--gold)}
.city-hero p{margin-top:12px;max-width:680px;font-size:15px;color:#dcebff}
.cv1 .city-hero{background:linear-gradient(120deg,#0b2a55,#0d47a1 55%,#1e88e5)}
.cv1 .city-hero::after{content:"";position:absolute;right:-60px;top:-60px;width:340px;height:340px;border-radius:50%;background:rgba(255,255,255,.07)}
.cv2 .city-hero{background:linear-gradient(100deg,#08214a,#12448f 60%,#1565c0)}
.cv2 .city-hero::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 2px,transparent 2px 70px)}
.cv3 .city-hero{background:radial-gradient(1000px 420px at 20% 0%,#1e88e5,#0d47a1 55%,#0b2a55)}
.cv4 .city-hero{background:linear-gradient(135deg,#0a2450 0%,#0d47a1 70%,#1976d2)}
.cv4 .city-hero .chip{background:rgba(245,166,35,.2);border-color:rgba(245,166,35,.5)}
.cv5 .city-hero{background:linear-gradient(120deg,#0d3a78,#1565c0 65%,#42a5f5)}
.cv6 .city-hero{background:linear-gradient(160deg,#081f42,#0b2a55 50%,#0d47a1)}
.cv6 .city-hero::after{content:"";position:absolute;left:50%;bottom:-120px;transform:translateX(-50%);width:520px;height:220px;border-radius:50%;background:rgba(30,136,229,.18)}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.chips i{font-style:normal;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);border-radius:14px;padding:3px 13px;font-size:12.5px}
.cstats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:34px}
.cstats b{display:block;font-size:24px}
.cstats span{font-size:12.5px;color:#c9def8}
.sk{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px 22px}
.sk h4{color:var(--navy);font-size:16.5px;margin-bottom:8px}
.sk p{color:var(--mut);font-size:13.5px}
.sk-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.h-list li{position:relative;padding:9px 0 9px 22px;color:#42506b;font-size:14.2px;border-bottom:1px dashed var(--line)}
.h-list li::before{content:"";position:absolute;left:2px;top:17px;width:8px;height:8px;border-radius:50%;background:var(--blue3)}

/* ---------- 首页板块跳转卡 ---------- */
.sechub{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.sec-card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.3s;display:flex;flex-direction:column}
.sec-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#bcd4f0}
.sec-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:#eef4fb}
.sec-card .sc-body{padding:18px 18px 6px;flex:1}
.sec-card h4{font-size:17px;color:var(--navy);margin-bottom:6px}
.sec-card p{font-size:13.5px;color:var(--mut)}
.sec-card .sc-more{display:block;padding:0 18px 16px;color:var(--blue2);font-size:13.5px;font-weight:600}
.sec-card:hover .sc-more{letter-spacing:.5px}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .app-grid{grid-template-columns:repeat(3,1fr)}
  .field-grid{grid-template-columns:repeat(3,1fr)}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .sk-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:992px){
  .menu-toggle{display:block}
  .nav{position:absolute;top:74px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:8px 16px 16px;box-shadow:0 14px 24px rgba(11,42,85,.12);display:none}
  .nav.open{display:flex}
  .nav a{padding:12px 8px;border-bottom:1px solid #eef3fa}
  .nav a.active::after{display:none}
  .nav .nav-cta{text-align:center;margin-top:10px}
  .banner{height:430px}
  .banner-title{font-size:32px}
  .about-split{grid-template-columns:1fr}
  .stats .container{grid-template-columns:repeat(2,1fr)}
  .spec-wrap{grid-template-columns:1fr}
  .footer .fmain{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .top-bar .container{justify-content:center}
  .top-bar span:nth-child(2){display:none}
  .logo-name{font-size:17px}
  .logo-sub{display:none}
  .logo img{height:38px}
  .header .container{height:62px}
  .nav{top:62px}
  .banner{height:360px}
  .banner-title{font-size:25px}
  .banner-sub{font-size:14px}
  .sec{padding:48px 0}
  .sec-title h2{font-size:22px}
  .app-grid{grid-template-columns:repeat(2,1fr)}
  .field-grid{grid-template-columns:repeat(2,1fr)}
  .sechub{grid-template-columns:repeat(2,1fr)}
  .adv-grid{grid-template-columns:1fr}
  .case-grid{grid-template-columns:1fr}
  .pgrid{grid-template-columns:repeat(2,1fr);gap:10px}
  .pcard h3{font-size:13px}
  .cstats{grid-template-columns:repeat(2,1fr)}
  .sk-grid{grid-template-columns:1fr}
  .city-hero h1{font-size:26px}
  .cstrip{padding:26px 20px}
  .cstrip .tel{font-size:21px}
  .footer .fmain{grid-template-columns:1fr}
}