/* ============================================================
   苏富包装 · 企业官网设计系统
   主色：深蓝 #0B3554 / 品牌蓝（LOGO 同源）#1E90D0 / 亮蓝（强调）#3AA3E8
   整体为明亮大气的蓝色调，主色取自 LOGO 蓝 #1E90D0
   ============================================================ */
:root{
  --ink:#0B3554;        /* 深海军蓝 - 主背景/文字 */
  --ink-2:#124A72;      /* 次级深蓝 */
  --ink-3:#1A63A0;
  --brand:#1E90D0;      /* 工业蓝 */
  --brand-d:#1674B4;
  --brand-l:#E8F5FD;
  --accent:#3AA3E8;     /* 工业橙 */
  --accent-d:#1E8AD6;
  --accent-l:#EAF6FE;
  --text:#1C2B3A;
  --muted:#6B7C8F;
  --line:#E3E8EE;
  --line-d:rgba(255,255,255,.14);
  --bg:#FFFFFF;
  --bg-soft:#F5F7FA;
  --bg-soft-2:#EEF2F7;
  --radius:4px;         /* 工业感：小圆角 */
  --radius-l:8px;
  --shadow:0 2px 12px rgba(11,53,84,.06);
  --shadow-l:0 12px 40px rgba(11,53,84,.12);
  --h-header:76px;
  --container:1280px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
  color:var(--text);background:var(--bg);font-size:15px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.01em}
p{margin:0}
button,input,select,textarea{font-family:inherit;font-size:inherit;outline:none}
button{cursor:pointer;border:0;background:none}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.container-narrow{max-width:960px}

/* ---------- 顶部工具条 ---------- */
.topbar{background:var(--ink);color:rgba(255,255,255,.62);font-size:13px;height:38px;display:flex;align-items:center;position:relative;z-index:60}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:16px}
.topbar a{color:rgba(255,255,255,.62)}
.topbar a:hover{color:#fff}
.topbar-l{display:flex;gap:22px;align-items:center;flex-wrap:wrap}
.topbar-r{display:flex;gap:16px;align-items:center}
.topbar-r .lang{opacity:.75;display:inline-flex;align-items:center;gap:6px}
.topbar-r .lang b{color:var(--accent);font-weight:600}
.topbar-r .lang a{color:inherit;text-decoration:none;opacity:.7;transition:all .2s}
.topbar-r .lang a:hover{opacity:1}
.topbar-r .lang a.on{opacity:1;color:var(--accent);font-weight:600}
.topbar-r .lang i{opacity:.4;font-style:normal}

/* ---------- 头部导航（白底常亮，配深色 logo） ---------- */
.header{
  position:absolute;top:38px;left:0;right:0;height:var(--h-header);z-index:50;
  background:#fff;box-shadow:0 2px 16px rgba(11,53,84,.08);
  transition:all .3s var(--ease);
}
.header .container{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;position:relative}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-img{height:42px;width:auto;display:block}
.logo-txt{display:flex;flex-direction:column;line-height:1.15}
.logo-txt b{font-size:20px;letter-spacing:.06em;color:var(--ink);font-weight:800;transition:color .3s}
.logo-txt span{font-size:10.5px;letter-spacing:.22em;color:var(--muted);text-transform:uppercase;transition:color .3s}
.nav{display:flex;align-items:center;gap:0;flex:1 1 auto;min-width:0;justify-content:center}
.nav>li{position:relative;flex-shrink:0}
.nav>li>a{
  display:flex;align-items:center;gap:4px;height:var(--h-header);padding:0 12px;
  color:var(--text);font-size:14.5px;font-weight:500;white-space:nowrap;position:relative;
}
.nav>li>a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:22px;height:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease);
}
.nav>li:hover>a::after,.nav>li.on>a::after{transform:scaleX(1)}
.nav>li:hover>a,.nav>li.on>a{color:var(--brand)}
.nav>li>a .arw{width:8px;height:8px;opacity:.55;transition:transform .25s}
.nav>li:hover>a .arw{transform:rotate(180deg)}
/* 二级下拉 */
.sub{
  position:absolute;top:var(--h-header);left:50%;transform:translateX(-50%) translateY(8px);
  min-width:186px;background:#fff;border-radius:0 0 var(--radius) var(--radius);
  box-shadow:0 14px 38px rgba(11,53,84,.18);padding:8px 0;opacity:0;visibility:hidden;
  transition:all .26s var(--ease);border-top:2px solid var(--accent);
}
.nav>li:hover .sub{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.sub a{display:block;padding:9px 20px;font-size:14px;color:var(--text);white-space:nowrap;position:relative}
.sub a:hover{background:var(--brand-l);color:var(--brand);padding-left:24px}
.sub a::before{content:"";position:absolute;left:10px;top:50%;width:4px;height:4px;background:var(--accent);border-radius:50%;opacity:0;transform:translateY(-50%);transition:opacity .2s}
.sub a:hover::before{opacity:1}
/* 未配置链接的菜单项：置灰不可点 */
.sub .sub-off,.msub .sub-off{display:block;padding:9px 20px;font-size:14px;color:#9aa7b4;white-space:nowrap;cursor:not-allowed;opacity:.7}
/* 二级下拉 hover 间隙补桥，鼠标从一级移到二级时不会中断 */
.sub::before{content:"";position:absolute;left:0;right:0;top:-10px;height:10px}
/* 滚动后的固定态 */
.header.fixed{position:fixed;top:0;background:rgba(255,255,255,.97);backdrop-filter:blur(10px);box-shadow:0 2px 16px rgba(11,53,84,.08);height:66px}
.header.fixed .logo-img{height:38px}
.header.fixed .nav>li>a{color:var(--text);height:66px}
.header.fixed .nav>li>a::after{bottom:18px}
.header.fixed .nav>li:hover>a,.header.fixed .nav>li.on>a{color:var(--brand)}
.header.fixed .sub{top:66px}
.hd-cta{display:flex;align-items:center;gap:12px;flex-shrink:0}
.hd-tel{display:flex;align-items:center;gap:7px;color:var(--brand);font-weight:700;font-size:15px;letter-spacing:.01em;transition:color .3s;white-space:nowrap;flex-shrink:0}
.hd-tel svg{width:16px;height:16px;flex-shrink:0}
.header.fixed .hd-tel{color:var(--accent)}
.burger{display:none;width:40px;height:40px;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.burger i{display:block;width:22px;height:2px;background:var(--ink);transition:.3s}
.header.fixed .burger i{background:var(--ink)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 30px;font-size:15px;font-weight:600;border-radius:var(--radius);
  transition:all .25s var(--ease);white-space:nowrap;letter-spacing:.02em;
}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--brand));color:#fff}
.btn-primary:hover{background:linear-gradient(135deg,var(--accent-d),var(--brand-d));transform:translateY(-2px);box-shadow:0 8px 22px rgba(30,144,208,.32)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.4)}
.btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--brand);transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--brand);border:1px solid var(--brand)}
.btn-outline:hover{background:var(--brand);color:#fff}
.btn-sm{height:38px;padding:0 18px;font-size:13.5px}
.btn-arrow svg{width:15px;height:15px;transition:transform .25s}
.btn:hover .btn-arrow svg{transform:translateX(4px)}

/* ---------- HERO ---------- */
.hero{position:relative;min-height:660px;height:calc(92vh + 114px);max-height:980px;display:flex;align-items:center;background:var(--ink);overflow:hidden;padding-top:114px}
.hero-bg{position:absolute;inset:0}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(11,53,84,.94) 0%,rgba(11,53,84,.8) 45%,rgba(11,53,84,.5) 100%)}
.hero-bg svg{width:100%;height:100%;object-fit:cover}
.hero .container{position:relative;z-index:2;padding-top:60px}
.hero-tag{
  display:inline-flex;align-items:center;gap:9px;height:32px;padding:0 14px;margin-bottom:26px;
  background:rgba(58,163,232,.14);border:1px solid rgba(58,163,232,.4);border-radius:100px;
  color:var(--accent);font-size:13px;font-weight:600;letter-spacing:.08em;
}
.hero-tag i{width:6px;height:6px;background:var(--accent);border-radius:50%;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(1.4)}}
.hero h1{font-size:56px;color:#fff;line-height:1.16;letter-spacing:-.02em;margin-bottom:22px;font-weight:800}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-sub{font-size:17px;color:rgba(255,255,255,.72);max-width:600px;line-height:1.9;margin-bottom:38px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.hero-scroll{position:absolute;left:50%;bottom:28px;transform:translateX(-50%);z-index:3;color:rgba(255,255,255,.5);font-size:12px;letter-spacing:.2em;display:flex;flex-direction:column;align-items:center;gap:8px}
.hero-scroll i{width:1px;height:38px;background:linear-gradient(180deg,rgba(255,255,255,.6),transparent);animation:sdrop 1.8s infinite}
@keyframes sdrop{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ---------- 数据条 ---------- */
.stats{background:var(--ink-2);padding:0;position:relative}
.stats .container{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:38px 20px;text-align:center;border-right:1px solid var(--line-d);position:relative}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:40px;color:#fff;font-weight:800;line-height:1.1;letter-spacing:-.02em}
.stat b span{font-size:20px;color:var(--accent);font-weight:700;margin-left:2px}
.stat span.n{display:block;color:rgba(255,255,255,.55);font-size:13.5px;margin-top:8px;letter-spacing:.08em}

/* ---------- 通用区块 ---------- */
.sec{padding:96px 0}
.sec-soft{background:var(--bg-soft)}
.sec-dark{background:var(--ink);color:#fff}
.sec-head{text-align:center;margin-bottom:56px;position:relative}
.sec-head h2{font-size:36px;color:var(--ink);letter-spacing:-.02em}
.sec-head .en{display:block;font-size:12px;letter-spacing:.34em;color:var(--accent);font-weight:700;margin-bottom:14px;text-transform:uppercase}
.sec-head p{color:var(--muted);margin-top:16px;font-size:15.5px;max-width:720px;margin-left:auto;margin-right:auto}
.sec-head::after{content:"";width:44px;height:3px;background:var(--accent);display:block;margin:22px auto 0}
.sec-dark .sec-head h2{color:#fff}
.sec-dark .sec-head p{color:rgba(255,255,255,.6)}
.sec-head.left{text-align:left}
.sec-head.left p{margin-left:0}
.sec-head.left::after{margin-left:0}
.sec-head.light h2{color:#fff}
.sec-head.light p{color:rgba(255,255,255,.65)}

/* ---------- 产品卡片 ---------- */
.grid{display:grid;gap:26px}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.prod{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:all .32s var(--ease);position:relative;display:block;
}
.prod:hover{transform:translateY(-6px);box-shadow:var(--shadow-l);border-color:transparent}
.prod-img{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg-soft-2)}
.prod-img svg{width:100%;height:100%;transition:transform .5s var(--ease)}
.prod:hover .prod-img svg{transform:scale(1.06)}
.prod-img .tag{
  position:absolute;top:12px;left:12px;height:24px;padding:0 10px;background:var(--accent);
  color:#fff;font-size:11.5px;font-weight:600;display:flex;align-items:center;border-radius:2px;z-index:2;
}
.prod-b{padding:22px 22px 24px}
.prod-b h3{font-size:17.5px;margin-bottom:9px;transition:color .25s}
.prod:hover .prod-b h3{color:var(--brand)}
.prod-b p{color:var(--muted);font-size:13.5px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:46px}
.prod-b .more{margin-top:16px;display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:13.5px;font-weight:600}
.prod-b .more svg{width:14px;height:14px;transition:transform .25s}
.prod:hover .more svg{transform:translateX(4px)}
/* 大卡片（首页 6 宫格带覆盖层） */
.prod-lg{position:relative;aspect-ratio:3/4;overflow:hidden;border-radius:var(--radius);display:block;background:var(--ink-2)}
.prod-lg svg{width:100%;height:100%;transition:transform .6s var(--ease)}
.prod-lg:hover svg{transform:scale(1.07)}
.prod-lg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,53,84,0) 30%,rgba(11,53,84,.9) 100%)}
.prod-lg .cap{position:absolute;left:0;right:0;bottom:0;padding:24px;z-index:2}
.prod-lg .cap h3{color:#fff;font-size:19px;margin-bottom:6px}
.prod-lg .cap span{color:rgba(255,255,255,.65);font-size:13px;display:flex;align-items:center;gap:6px;opacity:0;transform:translateY(8px);transition:all .3s var(--ease)}
.prod-lg:hover .cap span{opacity:1;transform:translateY(0)}

/* ---------- 能力/优势 ---------- */
.adv{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.adv-i{padding:38px 30px;border-right:1px solid var(--line);transition:all .3s var(--ease)}
.adv-i:last-child{border-right:0}
.adv-i:hover{background:var(--ink);}
.adv-i:hover h3,.adv-i:hover p{color:#fff}
.adv-i:hover .adv-ic{background:var(--accent);color:#fff}
.adv-ic{width:52px;height:52px;border-radius:var(--radius);background:var(--brand-l);color:var(--brand);display:flex;align-items:center;justify-content:center;margin-bottom:20px;transition:all .3s}
.adv-ic svg{width:26px;height:26px}
.adv-i h3{font-size:17px;margin-bottom:10px}
.adv-i p{color:var(--muted);font-size:13.5px;line-height:1.75}

/* ---------- 案例 ---------- */
.case{position:relative;border-radius:var(--radius);overflow:hidden;display:block;background:var(--ink-2)}
.case svg{width:100%;height:100%;transition:transform .6s var(--ease)}
.case:hover svg{transform:scale(1.05)}
.case::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,53,84,.1),rgba(11,53,84,.88))}
.case .cb{position:absolute;left:0;right:0;bottom:0;padding:26px;z-index:2}
.case .cb .ind{font-size:12px;color:var(--accent);font-weight:700;letter-spacing:.14em;margin-bottom:8px;display:block}
.case .cb h3{color:#fff;font-size:20px;margin-bottom:8px}
.case .cb p{color:rgba(255,255,255,.6);font-size:13.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.case-h{aspect-ratio:16/10}
.case-tall{grid-row:span 2}
.case-tall .case-h{aspect-ratio:auto;height:100%}

/* ---------- 新闻 ---------- */
.news-i{display:grid;grid-template-columns:110px 1fr;gap:24px;padding:26px 0;border-bottom:1px solid var(--line);transition:all .3s}
.news-i:last-child{border-bottom:0}
.news-d{text-align:center;background:var(--bg-soft);border-radius:var(--radius);padding:12px 0;height:fit-content;transition:all .3s}
.news-d b{display:block;font-size:28px;color:var(--ink);line-height:1;font-weight:800}
.news-d span{font-size:12px;color:var(--muted)}
.news-c h3{font-size:17px;margin-bottom:8px;transition:color .25s;line-height:1.5}
.news-i:hover .news-d{background:var(--brand);}
.news-i:hover .news-d b,.news-i:hover .news-d span{color:#fff}
.news-i:hover .news-c h3{color:var(--brand)}
.news-c p{color:var(--muted);font-size:13.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-c .meta{margin-top:10px;font-size:12.5px;color:var(--accent);display:flex;gap:14px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:all .3s;display:block}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-l)}
.news-card .ni{aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft-2)}
.news-card .ni svg{width:100%;height:100%;transition:transform .5s}
.news-card:hover .ni svg{transform:scale(1.06)}
.news-card .nb{padding:24px}
.news-card .nb .dt{font-size:12.5px;color:var(--accent);font-weight:600;margin-bottom:10px;display:block}
.news-card .nb h3{font-size:17px;line-height:1.55;margin-bottom:10px;transition:color .25s}
.news-card:hover .nb h3{color:var(--brand)}
.news-card .nb p{color:var(--muted);font-size:13.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 面包屑 + 内页头 ---------- */
.phead{
  position:relative;padding:150px 0 70px;background:var(--ink);overflow:hidden;
}
.phead::before{content:"";position:absolute;right:-110px;bottom:-150px;width:400px;height:400px;border:46px solid rgba(58,163,232,.09);border-radius:50%}
.phead::after{content:"";position:absolute;left:-90px;top:-90px;width:280px;height:280px;border:1px solid rgba(255,255,255,.1);border-radius:50%}
.phead .container{position:relative;z-index:2}
.phead h1{font-size:40px;color:#fff;margin-bottom:14px;letter-spacing:-.02em}
.phead .en{font-size:12px;letter-spacing:.3em;color:var(--accent);font-weight:700;text-transform:uppercase;display:block;margin-bottom:12px}
.phead p{color:rgba(255,255,255,.6);font-size:15px;max-width:640px}
.crumb{display:flex;align-items:center;gap:9px;font-size:13px;color:rgba(255,255,255,.55);margin-bottom:18px}
.crumb a:hover{color:var(--accent)}
.crumb svg{width:12px;height:12px;opacity:.5}

/* ---------- 侧边栏布局 ---------- */
.with-side{display:grid;grid-template-columns:270px 1fr;gap:48px;align-items:start}
.side-nav{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;position:sticky;top:86px}
.side-nav .sh{background:var(--ink);color:#fff;padding:20px 24px}
.side-nav .sh b{font-size:18px;display:block}
.side-nav .sh span{font-size:11px;letter-spacing:.2em;opacity:.5}
.side-nav ul{padding:8px 0}
.side-nav li a{display:flex;align-items:center;justify-content:space-between;padding:13px 24px;font-size:14.5px;color:var(--text);border-left:3px solid transparent;transition:all .25s}
.side-nav li a:hover,.side-nav li a.on{background:var(--brand-l);color:var(--brand);border-left-color:var(--accent);font-weight:600}
.side-nav li a svg{width:14px;height:14px;opacity:.4}
.side-contact{margin-top:24px;background:var(--ink);border-radius:var(--radius);padding:28px;color:#fff;text-align:center}
.side-contact b{display:block;font-size:13px;color:rgba(255,255,255,.55);font-weight:400;margin-bottom:8px}
.side-contact strong{display:block;font-size:26px;color:var(--accent);font-weight:800;letter-spacing:.02em;margin-bottom:16px}

/* ---------- 内容排版 ---------- */
.article{max-width:none}
.article h2{font-size:26px;margin:44px 0 18px;padding-left:14px;border-left:4px solid var(--accent)}
.article h3{font-size:19px;margin:30px 0 14px}
.article p{color:#41505F;line-height:2;margin-bottom:18px;font-size:15.5px}
.article ul{padding-left:0;margin:0 0 20px}
.article ul li{position:relative;padding-left:22px;margin-bottom:10px;color:#41505F;line-height:1.9}
.article ul li::before{content:"";position:absolute;left:4px;top:12px;width:6px;height:6px;background:var(--accent);border-radius:50%}
.article blockquote{margin:26px 0;padding:22px 26px;background:var(--brand-l);border-left:3px solid var(--brand);border-radius:0 var(--radius) var(--radius) 0;color:var(--text)}
.article figure{margin:30px 0}
.article figure svg{width:100%;border-radius:var(--radius)}
.article figcaption{text-align:center;color:var(--muted);font-size:13px;margin-top:12px}

/* ---------- 表格 ---------- */
.tbl{width:100%;border-collapse:collapse;font-size:14.5px}
.tbl th{background:var(--ink);color:#fff;padding:14px 18px;text-align:left;font-weight:600;font-size:14px}
.tbl td{padding:14px 18px;border-bottom:1px solid var(--line);color:#41505F}
.tbl tbody tr:hover{background:var(--bg-soft)}

/* ---------- 表单 ---------- */
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px}
.field label{display:block;font-size:13.5px;color:var(--text);margin-bottom:8px;font-weight:600}
.field label i{color:var(--accent);font-style:normal;margin-right:3px}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 16px;border:1px solid var(--line);border-radius:var(--radius);
  background:#fff;transition:all .25s;color:var(--text);
}
.field textarea{height:130px;padding:14px 16px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(30,144,208,.1)}

/* ---------- 合作伙伴 ---------- */
.partners{display:grid;grid-template-columns:repeat(6,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.partners div{background:#fff;aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;padding:18px;transition:all .3s;filter:grayscale(1);opacity:.65}
.partners div:hover{filter:grayscale(0);opacity:1;background:var(--bg-soft)}
.partners b{font-size:14px;color:var(--ink);font-weight:700;letter-spacing:.02em;text-align:center}

/* ---------- CTA 条 ---------- */
.cta-band{background:linear-gradient(120deg,var(--ink) 0%,var(--ink-3) 55%,var(--brand-d) 100%);padding:64px 0;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-80px;top:-80px;width:340px;height:340px;border:40px solid rgba(58,163,232,.12);border-radius:50%}
.cta-band .container{display:flex;align-items:center;justify-content:space-between;gap:40px;position:relative;z-index:2;flex-wrap:wrap}
.cta-band h2{font-size:30px;color:#fff;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.62);font-size:15px}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink);color:rgba(255,255,255,.6);padding:70px 0 0;font-size:14px;position:relative}
.footer .fg{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:52px}
.footer h4{color:#fff;font-size:16px;margin-bottom:22px;position:relative;padding-bottom:14px}
.footer h4::after{content:"";position:absolute;left:0;bottom:0;width:26px;height:2px;background:var(--accent)}
.footer .fabout p{line-height:1.9;margin-bottom:22px;font-size:13.5px}
.footer li{margin-bottom:11px}
.footer li a{font-size:13.5px;transition:all .2s;display:inline-block}
.footer li a:hover{color:var(--accent);transform:translateX(3px)}
.fcontact li{display:flex;gap:11px;align-items:flex-start;margin-bottom:16px;font-size:13.5px;line-height:1.7}
.fcontact svg{width:15px;height:15px;flex-shrink:0;margin-top:4px;color:var(--accent)}
.fcontact b{color:#fff;display:block;font-size:19px;font-weight:800;letter-spacing:.02em}
.fbar{border-top:1px solid var(--line-d);padding:22px 0;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;font-size:13px}
.fbar a:hover{color:var(--accent)}
/* 底部二维码：公众号 / 企业微信 / 智造者ID */
.fqr{display:flex;gap:16px;flex-wrap:wrap;margin-top:4px}
.fqr-i{width:78px;text-align:center}
.fqr-i img,.fqr-i .qr-ph{width:70px;height:70px;display:block;margin:0 auto 7px;background:#fff;border-radius:4px;padding:3px;box-sizing:border-box}
.fqr-i .qr-ph{border:1px dashed rgba(255,255,255,.35);background:rgba(255,255,255,.05);color:rgba(255,255,255,.55);font-size:11px;line-height:64px}
.fqr-i span{font-size:12px;color:rgba(255,255,255,.7);display:block;line-height:1.4}

/* ---------- 分页 ---------- */
.pager{display:flex;justify-content:center;gap:8px;margin-top:48px}
.pager a,.pager span{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--radius);font-size:14px;transition:all .25s}
.pager a:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
.pager .on{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ---------- TAB ---------- */
.tabs{display:flex;justify-content:center;gap:6px;flex-wrap:wrap;margin-bottom:44px}
.tab{padding:10px 26px;border:1px solid var(--line);border-radius:100px;font-size:14.5px;transition:all .25s;background:#fff}
.tab:hover{border-color:var(--brand);color:var(--brand)}
.tab.on{background:var(--ink);color:#fff;border-color:var(--ink)}

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

/* ---------- 移动端菜单 ---------- */
.mnav{
  position:fixed;inset:0;background:var(--ink);z-index:200;transform:translateX(100%);
  transition:transform .35s var(--ease);overflow-y:auto;padding:24px;display:none;
}
.mnav.open{transform:none}
.mnav-hd{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px}
.mnav-hd b{color:#fff;font-size:18px}
.mnav-close{width:40px;height:40px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:26px}
.mnav li{border-bottom:1px solid var(--line-d)}
.mnav li>a,.mnav .mt{display:block;padding:15px 0;color:rgba(255,255,255,.85);font-size:16px;display:flex;justify-content:space-between;align-items:center}
.mnav .msub{display:none;padding:0 0 12px 16px}
.mnav .msub a{display:block;padding:9px 0;color:rgba(255,255,255,.55);font-size:14px}
.mnav .msub.on{display:block}

/* ---------- 响应式 ---------- */
/* 头部电话：空间不足即隐藏（顶栏已有 400 热线，信息不丢失） */
@media(max-width:1400px){
  .hd-tel{display:none}
}
/* 横向导航放不下 → 切汉堡菜单（1024px 实测溢出 16px） */
@media(max-width:1080px){
  .nav{display:none}
  .burger{display:flex}
  .mnav{display:block}
}
@media(max-width:1180px){
  .nav>li>a{padding:0 9px;font-size:14px}
  .nav>li>a::after{left:9px;right:9px}
  .hero h1{font-size:44px}
  .g4{grid-template-columns:repeat(2,1fr)}
  .adv{grid-template-columns:repeat(2,1fr)}
  .adv-i:nth-child(2){border-right:0}
  .adv-i:nth-child(1),.adv-i:nth-child(2){border-bottom:1px solid var(--line)}
  .footer .fg{grid-template-columns:1fr 1fr;gap:34px}
  .partners{grid-template-columns:repeat(4,1fr)}
}
@media(max-width:900px){
  .topbar{display:none}
  .header{top:0}
  .nav,.hd-tel{display:none}
  .burger{display:flex}
  .mnav{display:block}
  .hero{min-height:auto;height:auto;padding:120px 0 80px}
  .hero h1{font-size:32px}
  .hero-sub{font-size:15px;margin-bottom:28px}
  .hero-scroll{display:none}
  .stats .container{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line-d)}
  .stat b{font-size:30px}
  .sec{padding:60px 0}
  .sec-head h2{font-size:26px}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .with-side{grid-template-columns:1fr;gap:30px}
  .side-nav{position:static}
  .phead{padding:110px 0 46px}
  .phead h1{font-size:28px}
  .adv{grid-template-columns:1fr}
  .adv-i{border-right:0;border-bottom:1px solid var(--line)}
  .cta-band h2{font-size:23px}
  .form-row{grid-template-columns:1fr}
  .partners{grid-template-columns:repeat(3,1fr)}
  .footer .fg{grid-template-columns:1fr}
  .container{padding:0 18px}
  .case-tall{grid-row:auto}
  .case-tall .case-h{aspect-ratio:16/10;height:auto}
}

/* ---------- 详情页共用 ---------- */
.pd-gallery .main{border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;background:var(--bg-soft-2)}
.pd-gallery .thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:12px}
.pd-gallery .thumbs div{aspect-ratio:1;border-radius:var(--radius);overflow:hidden;border:2px solid transparent;cursor:pointer;background:var(--bg-soft-2);transition:border-color .25s}
.pd-gallery .thumbs div:hover{border-color:var(--brand)}
.pd-gallery .thumbs div.on{border-color:var(--accent)}
.pd-info h1{font-size:32px;margin-bottom:14px}
.pd-meta{display:flex;gap:26px;flex-wrap:wrap;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:24px}
.pd-meta div{font-size:13.5px;color:var(--muted)}
.pd-meta div b{display:block;color:var(--text);font-size:15px;margin-top:3px}
.dl-ic{width:38px;height:38px;border-radius:var(--radius);background:var(--brand-l);color:var(--brand);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:11px;font-weight:700}
.dl{transition:all .25s}
.dl:hover{border-color:var(--brand)!important;box-shadow:var(--shadow)}
@media(max-width:900px){
  .pd-info h1{font-size:24px}
  .pd-gallery .thumbs{grid-template-columns:repeat(4,1fr);gap:8px}
}

/* ---------- 全国网点（联系我们） ---------- */
.net-kpi{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-bottom:26px}
.net-kpi>div{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 12px;text-align:center}
.net-kpi b{display:block;font-size:26px;color:var(--brand);font-weight:800;line-height:1.2}
.net-kpi span{font-size:12.5px;color:var(--muted)}
.filters{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 22px;margin-bottom:28px}
.frow{display:flex;align-items:flex-start;gap:16px;padding:7px 0}
.frow+.frow{border-top:1px dashed var(--line)}
.flab{flex-shrink:0;width:64px;font-size:13.5px;color:var(--muted);padding-top:8px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{padding:7px 16px;border:1px solid var(--line);border-radius:100px;background:#fff;font-size:13.5px;color:var(--text);transition:all .22s}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip.on{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}

.net-wrap{display:grid;grid-template-columns:430px 1fr;gap:34px;align-items:start}
.net-map{position:sticky;top:96px}
.map-box{position:relative;border-radius:var(--radius);overflow:hidden;background:#0B3554;box-shadow:var(--shadow)}
.cnmap{display:block;width:100%;height:auto}
.cnmap .mpt{cursor:pointer}
.cnmap .mpt .ring{transition:opacity .25s}
.map-tip{position:absolute;transform:translate(-50%,-100%);background:rgba(6,28,46,.95);color:#fff;padding:9px 13px;border-radius:8px;font-size:12.5px;pointer-events:none;opacity:0;transition:opacity .2s;white-space:nowrap;z-index:5;box-shadow:0 6px 20px rgba(0,0,0,.25)}
.map-tip.on{opacity:1}
.map-tip b{display:block;font-size:13.5px;margin-bottom:3px;color:#8CC9F0}
.map-tip span{display:block;line-height:1.7;opacity:.85}
.map-note{position:absolute;left:12px;bottom:10px;font-size:11.5px;color:rgba(255,255,255,.45)}
.legend{display:flex;flex-wrap:wrap;gap:14px;margin-top:14px;font-size:12.5px;color:var(--muted)}
.legend span{display:flex;align-items:center;gap:6px}
.legend i{width:10px;height:10px;border-radius:50%;display:block}
.map-hint{font-size:12.5px;color:var(--muted);margin-top:10px}

.net-tip{font-size:13.5px;color:var(--muted);padding:12px 16px;background:var(--bg-soft);border-radius:var(--radius);margin-bottom:20px}
.net-grp{margin-bottom:34px}
.net-gh{display:flex;align-items:baseline;gap:12px;margin-bottom:16px;padding-left:13px;border-left:3px solid var(--brand)}
.net-gh h3{font-size:19px;color:var(--ink)}
.net-gh span{font-size:13px;color:var(--muted)}
.net-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.oc{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:all .3s}
.oc:hover{border-color:var(--brand);box-shadow:var(--shadow-l);transform:translateY(-3px)}
.oc.flash{border-color:var(--accent);box-shadow:0 0 0 3px rgba(58,163,232,.22)}
.oc-h{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.oc-h h3{font-size:17px;color:var(--ink);line-height:1.45;margin-bottom:7px}
.oc-loc{display:flex;align-items:center;gap:5px;font-size:13px;color:var(--muted)}
.oc-loc svg{width:14px;height:14px;flex-shrink:0}
.ob-tp{flex-shrink:0;padding:4px 11px;border:1px solid;border-radius:100px;font-size:12px;font-weight:600;white-space:nowrap}
.oc-b{list-style:none;display:grid;gap:9px;margin-bottom:15px}
.oc-b li{display:flex;align-items:flex-start;gap:8px;font-size:13.5px;color:var(--text);line-height:1.65}
.oc-b svg{width:15px;height:15px;flex-shrink:0;color:var(--brand);margin-top:3px}
.oc-b a{color:var(--brand)}
.oc-b a:hover{text-decoration:underline}
.oc-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}
.oc-tags span{font-size:12px;color:var(--muted);background:var(--bg-soft-2);padding:4px 10px;border-radius:4px}
.oc-f{font-size:12.5px;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px;padding-top:12px;border-top:1px dashed var(--line)}
.oc-f .dot{opacity:.5}
.oc-cta{display:flex;gap:10px;margin-top:16px}
.btn-sm{padding:9px 18px;font-size:13.5px}
.empty{padding:60px 20px;text-align:center;color:var(--muted);background:#fff;border:1px dashed var(--line);border-radius:var(--radius)}

@media(max-width:1240px){
  .net-wrap{grid-template-columns:1fr}
  .net-map{position:static}
  .map-box{max-width:640px}
  .net-cards{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:900px){
  .net-kpi{grid-template-columns:repeat(3,1fr)}
  .net-cards{grid-template-columns:1fr}
  .frow{flex-direction:column;gap:8px}
  .flab{padding-top:0}
}