/* =====================================================================
   前台样式  marketing-cms
   设计变量集中在 :root，改主题色只需要改这里
   ===================================================================== */
:root{
  --brand:#1d4ed8;
  --brand-2:#3b82f6;
  --brand-dark:#0f2c6b;
  --brand-light:#eef4ff;
  --accent:#f97316;
  --ink:#0f172a;
  --text:#334155;
  --muted:#6b7a90;
  --line:#e6ebf3;
  --bg:#f6f8fc;
  --white:#fff;
  --radius:14px;
  --radius-sm:9px;
  --shadow:0 6px 24px rgba(15,23,42,.07);
  --shadow-lg:0 18px 48px rgba(15,23,42,.12);
  --container:1180px;
  --header-h:70px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--white);color:var(--text);
  font:15px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700;line-height:1.35}
p{margin:0 0 1em}
a{color:var(--brand);text-decoration:none;transition:color .18s}
a:hover{color:var(--brand-dark)}
img{max-width:100%;height:auto;display:block;border:0}
ul,ol{margin:0 0 1em;padding-left:1.35em}
li{margin:.3em 0}
.ico{flex:none;vertical-align:-3px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.muted{color:var(--muted);font-size:13.5px}

/* ------------------------------ 按钮 ------------------------------ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  height:44px;padding:0 22px;border-radius:var(--radius-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;transition:.18s;white-space:nowrap;line-height:1;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);color:#fff;box-shadow:0 8px 20px rgba(29,78,216,.28)}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.45)}
.btn-ghost:hover{background:rgba(255,255,255,.24);color:#fff}
.btn-line{background:#fff;color:var(--brand);border-color:#cddaf2}
.btn-line:hover{border-color:var(--brand);color:var(--brand-dark)}
.btn-sm{height:36px;padding:0 16px;font-size:13.5px}
.btn-lg{height:50px;padding:0 30px;font-size:16px}
.btn-block{width:100%}

/* ------------------------------ 顶栏 ------------------------------ */
.topbar{background:var(--brand-dark);color:#c7d6f0;font-size:13px}
.topbar-in{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:38px;flex-wrap:wrap}
.topbar-left{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.topbar-item{display:inline-flex;align-items:center;gap:6px}
.topbar a{color:#e2ebfb}
.topbar a:hover{color:#fff}
.city-switch{position:relative}
.city-switch>summary{
  list-style:none;cursor:pointer;display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border:1px solid rgba(255,255,255,.28);border-radius:20px;color:#fff;
}
.city-switch>summary::-webkit-details-marker{display:none}
.city-switch[open]>summary{background:rgba(255,255,255,.16)}
.city-menu{
  position:absolute;right:0;top:calc(100% + 8px);z-index:60;background:#fff;color:var(--text);
  border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-lg);padding:12px;min-width:260px;max-width:min(88vw,520px);
}
.city-menu h5{margin:0 0 8px;font-size:12px;color:var(--muted);font-weight:600;letter-spacing:.5px}
.city-menu-list{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:12px}
.city-menu-list:last-child{margin-bottom:0}
.city-menu-list a{
  display:inline-block;padding:5px 12px;border-radius:20px;background:var(--bg);
  color:var(--text);font-size:13px;border:1px solid transparent;
}
.city-menu-list a:hover{background:var(--brand-light);color:var(--brand);border-color:#c7dafd}
.city-menu-list a.is-current{background:var(--brand);color:#fff;border-color:var(--brand)}
.city-sub{padding-left:8px;border-left:2px solid var(--line);margin-left:2px}

/* ------------------------------ 头部 ------------------------------ */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s}
.site-header.is-stuck{box-shadow:0 4px 18px rgba(15,23,42,.08)}
.header-in{display:flex;align-items:center;gap:22px;min-height:var(--header-h)}
.logo{display:flex;align-items:center;gap:11px;flex:none;color:var(--ink)}
.logo:hover{color:var(--ink)}
.logo-mark{
  width:40px;height:40px;border-radius:11px;flex:none;
  background:linear-gradient(135deg,var(--brand-dark),var(--brand-2));
  color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;letter-spacing:-.5px;
}
.logo-mark img{width:100%;height:100%;object-fit:contain;border-radius:11px;background:#fff}
.logo-text b{display:block;font-size:17px;line-height:1.2;color:var(--ink);letter-spacing:.3px}
.logo-text span{display:block;font-size:11.5px;color:var(--muted);letter-spacing:.6px;text-transform:uppercase}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:2px}
.main-nav a{
  display:block;padding:9px 15px;border-radius:8px;color:var(--ink);font-size:15px;font-weight:600;position:relative;
}
.main-nav a:hover{background:var(--brand-light);color:var(--brand)}
.main-nav a.is-active{color:var(--brand)}
.main-nav a.is-active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:2px;height:2.5px;border-radius:2px;background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}
.header-tel{display:flex;align-items:center;gap:9px;color:var(--ink)}
.header-tel .ico{color:var(--brand)}
.header-tel b{display:block;font-size:16.5px;line-height:1.15;letter-spacing:.2px}
.header-tel span{display:block;font-size:11.5px;color:var(--muted)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink);align-items:center;justify-content:center;cursor:pointer;
}

/* ------------------------------ Hero ------------------------------ */
.hero{position:relative;overflow:hidden;background:linear-gradient(125deg,#0b2455 0%,#123a86 45%,#1d4ed8 100%);color:#fff}
.hero::before{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:44px 44px;
}
.hero::after{
  content:"";position:absolute;width:560px;height:560px;right:-160px;top:-220px;border-radius:50%;
  background:radial-gradient(circle,rgba(96,165,250,.45),transparent 65%);
}
.hero-in{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center;padding:76px 20px 82px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  border-radius:22px;padding:5px 15px;font-size:13px;margin-bottom:20px;backdrop-filter:blur(4px);
}
.hero h1{color:#fff;font-size:clamp(28px,4.1vw,46px);line-height:1.24;letter-spacing:-.5px;margin-bottom:18px}
.hero h1 em{font-style:normal;color:#7dd3fc}
.hero-sub{font-size:16.5px;color:#d6e4fb;max-width:560px;margin-bottom:28px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.hero-stats{display:flex;gap:34px;flex-wrap:wrap;padding-top:26px;border-top:1px solid rgba(255,255,255,.18)}
.hero-stat b{display:block;font-size:29px;line-height:1.1;color:#fff;letter-spacing:-.5px}
.hero-stat b i{font-style:normal;font-size:17px;margin-left:2px;color:#7dd3fc}
.hero-stat span{font-size:13px;color:#c2d4f2}
.hero-panel{
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:20px;
  padding:24px;backdrop-filter:blur(8px);box-shadow:0 20px 50px rgba(3,12,38,.32);
}
.hero-panel h3{color:#fff;font-size:16px;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.hero-list{display:grid;gap:11px;margin:0;padding:0;list-style:none}
.hero-list li{display:flex;gap:11px;align-items:flex-start;font-size:14px;color:#e2ebfb;margin:0}
.hero-list .ico{color:#7dd3fc;margin-top:3px}
.hero-quick{margin-top:20px;padding-top:18px;border-top:1px solid rgba(255,255,255,.18);display:flex;gap:10px;flex-wrap:wrap}
.hero-quick a{
  flex:1 1 auto;text-align:center;padding:10px 14px;border-radius:10px;background:rgba(255,255,255,.14);
  color:#fff;font-size:13.5px;font-weight:600;
}
.hero-quick a:hover{background:#fff;color:var(--brand-dark)}

/* ------------------------------ 通用区块 ------------------------------ */
.section{padding:72px 0}
.section.tint{background:var(--bg)}
.section-head{max-width:720px;margin:0 auto 42px;text-align:center}
.section-head .kicker{
  display:inline-block;color:var(--brand);background:var(--brand-light);border-radius:20px;
  padding:3px 14px;font-size:12.5px;font-weight:700;letter-spacing:1.2px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(22px,2.7vw,33px);letter-spacing:-.4px;margin-bottom:12px}
.section-head p{color:var(--muted);font-size:15.5px;margin:0}
.section-head.left{text-align:left;margin-left:0}

/* ------------------------------ 卡片网格 ------------------------------ */
.grid{display:grid;gap:22px}
.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:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:.22s;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#d3e0f7}
.card-thumb{position:relative;aspect-ratio:16/10;background:linear-gradient(135deg,#e8eef9,#dbe6f8);overflow:hidden}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s}
.card:hover .card-thumb img{transform:scale(1.05)}
.card-thumb .no-img{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#93a7c4;font-size:13px
}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:17px;margin-bottom:9px;line-height:1.45}
.card-body h3 a{color:var(--ink)}
.card-body h3 a:hover{color:var(--brand)}
.card-body p{color:var(--muted);font-size:14px;margin:0 0 14px;flex:1}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:13px;border-top:1px dashed var(--line)}
.card-tag{
  display:inline-block;background:var(--brand-light);color:var(--brand);border-radius:6px;
  padding:2px 9px;font-size:12px;font-weight:600;
}
.card-more{display:inline-flex;align-items:center;gap:5px;font-size:13.5px;font-weight:600}
.price{color:var(--accent);font-weight:800;font-size:17px}
.price small{font-weight:500;font-size:12px;color:var(--muted)}

.card-icon{
  width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand-light),#dbe8ff);color:var(--brand);margin-bottom:16px;
}
.card.plain{padding:26px 24px}
.card.plain .card-body{padding:0}

/* 优势小卡 */
.feature{display:flex;gap:15px;padding:22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:.2s}
.feature:hover{border-color:#cfe0f8;box-shadow:var(--shadow)}
.feature .fi{
  width:46px;height:46px;flex:none;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-light);color:var(--brand);
}
.feature h4{font-size:15.5px;margin-bottom:6px}
.feature p{margin:0;color:var(--muted);font-size:13.5px}

/* 新闻列表 */
.news-item{display:flex;gap:20px;padding:20px 0;border-bottom:1px solid var(--line);align-items:flex-start}
.news-item:last-child{border-bottom:0}
.news-date{
  flex:none;width:76px;text-align:center;background:var(--bg);border-radius:11px;padding:11px 4px;border:1px solid var(--line)
}
.news-date b{display:block;font-size:22px;color:var(--brand);line-height:1.1}
.news-date span{font-size:11.5px;color:var(--muted)}
.news-main{flex:1;min-width:0}
.news-main h3{font-size:16.5px;margin-bottom:7px}
.news-main h3 a{color:var(--ink)}
.news-main h3 a:hover{color:var(--brand)}
.news-main p{color:var(--muted);font-size:13.5px;margin:0 0 9px}
.news-meta{display:flex;gap:16px;flex-wrap:wrap;color:#94a3b8;font-size:12.5px}
.news-meta span{display:inline-flex;align-items:center;gap:5px}

/* 城市分站条 */
.city-strip{background:linear-gradient(120deg,#0e2a63,#1d4ed8);color:#fff;border-radius:18px;padding:30px 32px;display:flex;gap:26px;align-items:center;flex-wrap:wrap}
.city-strip h3{color:#fff;font-size:19px;margin:0}
.city-strip p{color:#c8d9f7;font-size:13.5px;margin:6px 0 0}
.city-strip-list{display:flex;gap:9px;flex-wrap:wrap;margin-left:auto}
.city-strip-list a{
  background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.22);color:#fff;
  border-radius:20px;padding:6px 15px;font-size:13.5px;
}
.city-strip-list a:hover{background:#fff;color:var(--brand-dark)}

/* ------------------------------ 页面头 / 面包屑 ------------------------------ */
.page-hero{background:linear-gradient(120deg,#0e2a63,#1d4ed8);color:#fff;padding:54px 0 46px;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;inset:0;opacity:.35;background-image:linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);background-size:38px 38px}
.page-hero-in{position:relative;z-index:2}
.page-hero h1{color:#fff;font-size:clamp(23px,3vw,34px);margin-bottom:10px;letter-spacing:-.3px}
.page-hero p{color:#cfdef8;max-width:760px;margin:0;font-size:15px}
.breadcrumb{display:flex;align-items:center;gap:7px;flex-wrap:wrap;font-size:13px;color:#b9cdec;margin-bottom:14px}
.breadcrumb a{color:#dbe7fb}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.55}

/* ------------------------------ 文章正文 ------------------------------ */
.article{max-width:850px;margin:0 auto;font-size:15.5px;line-height:1.95;color:#2f3d50;word-break:break-word}
.article h2{font-size:21px;margin:1.6em 0 .7em;padding-left:12px;border-left:4px solid var(--brand)}
.article h3{font-size:18px;margin:1.5em 0 .6em}
.article h4{font-size:16px;margin:1.3em 0 .5em}
.article p{margin:0 0 1.05em}
.article img{border-radius:10px;margin:1.2em 0}
.article ul,.article ol{margin:0 0 1.1em;padding-left:1.5em}
.article li{margin:.42em 0}
.article blockquote{
  margin:1.3em 0;padding:14px 20px;background:var(--bg);border-left:4px solid var(--brand-2);
  border-radius:0 10px 10px 0;color:#475569;
}
.article table{width:100%;border-collapse:collapse;margin:1.3em 0;font-size:14.5px}
.article th,.article td{border:1px solid var(--line);padding:10px 13px;text-align:left}
.article th{background:var(--bg);font-weight:700;color:var(--ink)}
.article .lead{font-size:17px;color:#475569;background:var(--bg);border-left:4px solid var(--brand);border-radius:0 10px 10px 0;padding:16px 20px;margin-bottom:1.4em}
.article .promise-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:1.4em 0}
.article .promise-item{background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:18px 20px}
.article .promise-item h4{margin:0 0 8px;color:var(--brand);font-size:16px}
.article .promise-item p{margin:0;font-size:14px;color:var(--muted)}
.article .wx-box{
  display:inline-flex;align-items:center;gap:12px;background:#ecfdf5;border:1px solid #a7f3d0;
  border-radius:10px;padding:12px 18px;color:#065f46;font-size:14px;margin:.6em 0
}

/* 文章头 */
.article-head{max-width:850px;margin:0 auto 30px;text-align:center}
.article-head h1{font-size:clamp(22px,3vw,32px);margin-bottom:14px;letter-spacing:-.3px}
.article-meta{display:flex;justify-content:center;gap:20px;flex-wrap:wrap;color:#94a3b8;font-size:13px}
.article-meta span{display:inline-flex;align-items:center;gap:5px}

/* 上一篇/下一篇 */
.article-nav{max-width:850px;margin:38px auto 0;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.article-nav a{
  display:block;padding:14px 18px;border:1px solid var(--line);border-radius:11px;background:#fff;
  color:var(--text);font-size:14px;transition:.18s;overflow:hidden;
}
.article-nav a:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-light)}
.article-nav small{display:block;color:var(--muted);font-size:12px;margin-bottom:4px}
.article-nav .txt{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.article-nav .next{text-align:right}

/* ------------------------------ 侧栏 / 筛选 ------------------------------ */
.layout-side{display:grid;grid-template-columns:250px 1fr;gap:32px;align-items:start}
.side-nav{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:8px;position:sticky;top:calc(var(--header-h) + 16px)}
.side-nav h4{font-size:13px;color:var(--muted);padding:12px 14px 8px;margin:0;letter-spacing:.5px}
.side-nav a{
  display:block;padding:10px 14px;border-radius:9px;color:var(--text);font-size:14.5px;font-weight:500;
}
.side-nav a:hover{background:var(--bg);color:var(--brand)}
.side-nav a.is-active{background:var(--brand);color:#fff;font-weight:600}
.filter-bar{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:24px}
.filter-bar a{
  padding:7px 16px;border-radius:20px;background:var(--bg);color:var(--text);font-size:13.5px;border:1px solid transparent;
}
.filter-bar a:hover{background:var(--brand-light);color:var(--brand)}
.filter-bar a.is-active{background:var(--brand);color:#fff;border-color:var(--brand);font-weight:600}
.empty{text-align:center;padding:60px 20px;color:var(--muted);background:var(--bg);border-radius:var(--radius);border:1px dashed var(--line)}
.empty .ico{color:#b8c6dc;margin-bottom:12px}

/* 分页 */
.pager{display:flex;gap:8px;align-items:center;justify-content:center;flex-wrap:wrap;margin-top:38px}
.pager-item{
  min-width:38px;height:38px;padding:0 13px;border:1px solid var(--line);border-radius:9px;background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--text);font-size:14px;
}
.pager-item:hover{border-color:var(--brand);color:var(--brand)}
.pager-item.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:700}
.pager-total{color:var(--muted);font-size:13px;margin-left:8px}

/* ------------------------------ 产品详情 ------------------------------ */
.pd{display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:start}
.pd-gallery{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--bg)}
.pd-gallery .main-img{aspect-ratio:4/3;background:#fff}
.pd-gallery .main-img img{width:100%;height:100%;object-fit:cover}
.pd-thumbs{display:flex;gap:8px;padding:10px;flex-wrap:wrap}
.pd-thumbs img{width:64px;height:52px;object-fit:cover;border-radius:7px;border:2px solid transparent;cursor:pointer}
.pd-thumbs img.is-active{border-color:var(--brand)}
.pd-info h1{font-size:clamp(21px,2.6vw,29px);margin-bottom:14px}
.pd-price{font-size:28px;color:var(--accent);font-weight:800;margin:16px 0}
.pd-price small{font-size:14px;color:var(--muted);font-weight:500}
.pd-attrs{list-style:none;padding:0;margin:18px 0;border-top:1px solid var(--line)}
.pd-attrs li{display:flex;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px;margin:0}
.pd-attrs b{color:var(--muted);font-weight:500;min-width:78px}
.pd-btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}

/* ------------------------------ 联系页 ------------------------------ */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:36px;align-items:start}
.contact-cards{display:grid;gap:14px}
.contact-card{display:flex;gap:15px;padding:19px 21px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.contact-card .ci{width:44px;height:44px;flex:none;border-radius:12px;background:var(--brand-light);color:var(--brand);display:flex;align-items:center;justify-content:center}
.contact-card h4{font-size:14.5px;margin-bottom:4px}
.contact-card p{margin:0;font-size:14px;color:var(--text);word-break:break-all}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 30px;box-shadow:var(--shadow)}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card .fs{color:var(--muted);font-size:13.5px;margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:#3c4a5e;margin-bottom:6px}
.field label .req{color:#dc2626}
.field input,.field textarea,.field select{
  width:100%;border:1px solid #d9e1ee;border-radius:var(--radius-sm);padding:11px 13px;font-size:14.5px;
  background:#fbfcfe;outline:0;font-family:inherit;transition:.16s;color:var(--ink);
}
.field textarea{min-height:110px;resize:vertical}
.field input:focus,.field textarea:focus{border-color:var(--brand-2);background:#fff;box-shadow:0 0 0 3px rgba(59,130,246,.12)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.alert{border-radius:10px;padding:13px 17px;margin-bottom:18px;font-size:14px;border:1px solid transparent}
.alert-ok{background:#ecfdf5;border-color:#a7f3d0;color:#065f46}
.alert-err{background:#fef2f2;border-color:#fecaca;color:#991b1b}
.map-embed{margin-top:26px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--bg)}
.map-embed iframe{display:block;width:100%;height:320px;border:0}

/* ------------------------------ CTA 条 ------------------------------ */
.cta{background:linear-gradient(120deg,#0e2a63,#1d4ed8);border-radius:18px;padding:38px 40px;color:#fff;display:flex;align-items:center;gap:28px;flex-wrap:wrap}
.cta h3{color:#fff;font-size:22px;margin:0 0 6px}
.cta p{color:#c8d9f7;margin:0;font-size:14.5px}
.cta-btns{margin-left:auto;display:flex;gap:12px;flex-wrap:wrap}

/* ------------------------------ 页脚 ------------------------------ */
.site-footer{background:#0b1729;color:#9fb0c8;margin-top:0}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px;padding:56px 0 40px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.4px}
.footer-col p{font-size:13.5px;color:#8fa1bb;line-height:1.85;margin:0 0 10px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin:0 0 9px}
.footer-col a{color:#9fb0c8;font-size:13.5px}
.footer-col a:hover{color:#fff}
.footer-logo{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-logo .logo-mark{background:linear-gradient(135deg,#1d4ed8,#3b82f6)}
.footer-logo b{color:#fff;font-size:17px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:#9fb0c8;margin-bottom:11px}
.footer-contact .ico{color:var(--brand-2);margin-top:3px}
.footer-city{margin-top:18px;padding-top:16px;border-top:1px solid #1c2c45}
.footer-city h5{color:#c8d9f7;font-size:12.5px;margin:0 0 10px;font-weight:600}
.footer-city-list{display:flex;flex-wrap:wrap;gap:8px}
.footer-city-list a{
  font-size:12.5px;padding:3px 11px;border-radius:14px;background:#16253c;color:#9fb0c8;border:1px solid #1e3050;
}
.footer-city-list a:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
.footer-bottom{border-top:1px solid #1c2c45;padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7c8ea8}
.footer-bottom a{color:#8fa1bb}
.footer-bottom a:hover{color:#fff}
.footer-bottom-links{display:flex;gap:16px;flex-wrap:wrap}

/* 返回顶部 */
.to-top{
  position:fixed;right:20px;bottom:26px;width:44px;height:44px;border-radius:12px;background:#fff;color:var(--brand);
  border:1px solid var(--line);box-shadow:var(--shadow);display:none;align-items:center;justify-content:center;cursor:pointer;z-index:40;
}
.to-top.is-show{display:flex}
.to-top:hover{background:var(--brand);color:#fff;border-color:var(--brand)}

/* 移动端导航抽屉 */
.nav-drawer{display:none}

/* ------------------------------ 响应式 ------------------------------ */
@media (max-width:1080px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .hero-in{grid-template-columns:1fr;padding:56px 20px 62px;gap:34px}
  .layout-side{grid-template-columns:1fr}
  .side-nav{position:static;display:flex;flex-wrap:wrap;gap:6px;padding:10px}
  .side-nav h4{width:100%;padding:4px 6px}
  .side-nav a{padding:8px 14px}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:860px){
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .header-tel{display:none}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .pd{grid-template-columns:1fr;gap:26px}
  .contact-grid{grid-template-columns:1fr}
  .article .promise-grid{grid-template-columns:1fr}
  .cta{padding:28px 24px}
  .cta-btns{margin-left:0;width:100%}
  .city-strip{padding:24px}
  .city-strip-list{margin-left:0}

  /* 抽屉 */
  .nav-drawer{
    display:block;position:fixed;inset:0;z-index:80;background:rgba(11,23,41,.45);
    opacity:0;visibility:hidden;transition:.2s;
  }
  .nav-drawer.is-open{opacity:1;visibility:visible}
  .nav-drawer-panel{
    position:absolute;right:0;top:0;bottom:0;width:min(80vw,320px);background:#fff;
    transform:translateX(100%);transition:transform .24s ease;display:flex;flex-direction:column;overflow-y:auto;
  }
  .nav-drawer.is-open .nav-drawer-panel{transform:translateX(0)}
  .nav-drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
  .nav-drawer-head b{font-size:15px;color:var(--ink)}
  .nav-drawer-close{width:36px;height:36px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink);display:flex;align-items:center;justify-content:center;cursor:pointer}
  .nav-drawer-links{padding:10px}
  .nav-drawer-links a{display:block;padding:12px 14px;border-radius:9px;color:var(--ink);font-size:15px;font-weight:600}
  .nav-drawer-links a:hover,.nav-drawer-links a.is-active{background:var(--brand-light);color:var(--brand)}
  .nav-drawer-foot{margin-top:auto;padding:18px 20px;border-top:1px solid var(--line);background:var(--bg)}
  .nav-drawer-foot .btn{margin-bottom:10px}
}
@media (max-width:620px){
  body{font-size:14.5px}
  .section{padding:48px 0}
  .grid-3,.grid-2,.grid-4{grid-template-columns:1fr}
  .container{padding:0 16px}
  .footer-top{grid-template-columns:1fr;gap:26px;padding:40px 0 30px}
  .page-hero{padding:36px 0 32px}
  .article-nav{grid-template-columns:1fr}
  .article-nav .next{text-align:left}
  .field-row{grid-template-columns:1fr}
  .form-card{padding:22px 20px}
  .hero-stats{gap:22px;padding-top:20px}
  .hero-stat b{font-size:24px}
  .news-item{gap:14px}
  .news-date{width:62px;padding:9px 2px}
  .news-date b{font-size:18px}
  .footer-bottom{flex-direction:column;gap:8px}
  .topbar-in{min-height:34px}
  .topbar-left{gap:12px}
}