/* ==========================================================================
   安徽长源数字经济产业园有限公司 · 长源数服 官网样式
   风格：主流企业/数字产业园风格（浅色底 + 蓝色主色 + 卡片式布局）
   ========================================================================== */

:root{
  --primary:#1668E3;
  --primary-dark:#0F4FBB;
  --primary-light:#EAF2FE;
  --ink:#16202F;
  --text:#3D4C61;
  --muted:#6B7C93;
  --line:#E4EAF2;
  --line-2:#D5DEEA;
  --bg:#FFFFFF;
  --bg-gray:#F5F8FC;
  --ok:#12A150;
  --warn:#E08C1B;
  --radius:8px;
  --radius-lg:12px;
  --shadow:0 6px 24px rgba(22,50,95,.08);
  --shadow-lg:0 16px 44px rgba(22,50,95,.14);
  --max:1200px;
  --hd-h:68px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:15px;line-height:1.8;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.35;font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
em{font-style:normal;}
strong{color:var(--ink);font-weight:600;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;position:relative;}

/* ---------------- 顶部信息条 ---------------- */
.topbar{background:#0E1C33;color:rgba(255,255,255,.78);font-size:12.5px;}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;gap:20px;height:38px;}
.topbar-slogan{margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-links{display:flex;gap:26px;flex:0 0 auto;}
.topbar-links li{display:flex;gap:8px;align-items:center;}
.topbar-links span{color:rgba(255,255,255,.5);}
.topbar-links b{font-weight:500;color:#fff;}
.topbar-links .ph{color:#FFD591;border-bottom:1px dashed rgba(255,213,145,.55);}

/* ---------------- 头部导航 ---------------- */
.site-header{
  position:sticky;top:0;z-index:100;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 4px 18px rgba(22,50,95,.08);}
.header-inner{display:flex;align-items:center;gap:28px;height:var(--hd-h);}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo b{
  width:38px;height:38px;border-radius:9px;flex:0 0 auto;display:grid;place-items:center;
  font-size:15px;letter-spacing:.5px;color:#fff;
  background:linear-gradient(135deg,var(--primary),#3E93F5);
}
.logo span{display:flex;flex-direction:column;font-size:17px;font-weight:700;color:var(--ink);line-height:1.2;}
.logo small{font-size:11px;font-weight:400;color:var(--muted);letter-spacing:.2px;}
.nav{display:flex;gap:2px;margin-left:auto;}
.nav a{padding:9px 15px;border-radius:6px;font-size:15px;color:var(--text);transition:all .2s;}
.nav a:hover{color:var(--primary);background:var(--primary-light);}
.nav a.is-active{color:var(--primary);font-weight:600;background:var(--primary-light);}
.header-cta{flex:0 0 auto;}
.menu-btn{
  display:none;width:40px;height:40px;border-radius:6px;margin-left:auto;
  background:#fff;border:1px solid var(--line-2);color:var(--ink);font-size:17px;cursor:pointer;
}

/* ---------------- 按钮 ---------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:6px;font-size:15px;font-weight:600;
  cursor:pointer;border:1px solid transparent;font-family:inherit;
  transition:all .22s ease;white-space:nowrap;
}
.btn-sm{height:38px;padding:0 20px;font-size:14px;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(22,104,227,.28);}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 10px 22px rgba(22,104,227,.34);}
.btn-outline{border-color:var(--primary);color:var(--primary);background:#fff;}
.btn-outline:hover{background:var(--primary-light);}
.btn-block{width:100%;}

/* ---------------- 首屏 ---------------- */
.hero{position:relative;background:linear-gradient(180deg,#EFF5FF 0%,#F7FAFF 62%,#fff 100%);overflow:hidden;padding:66px 0 74px;}
#bg-canvas{position:absolute;inset:0;width:100%;height:100%;opacity:.45;pointer-events:none;}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.kicker{
  display:inline-block;font-size:13px;color:var(--primary);font-weight:600;
  background:#fff;border:1px solid #D6E4FB;border-radius:999px;padding:6px 16px;margin-bottom:20px;
}
.hero h1{font-size:clamp(28px,3.5vw,44px);font-weight:800;letter-spacing:.5px;margin-bottom:20px;}
.hero h1 em{display:block;font-size:.62em;font-weight:600;color:var(--primary);margin-top:12px;letter-spacing:1px;}
.hero .lead{font-size:16px;color:var(--text);max-width:600px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:30px 0 26px;}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 26px;}
.hero-points li{position:relative;padding-left:24px;font-size:14px;color:var(--text);}
.hero-points li::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:16px;height:16px;border-radius:50%;background:var(--primary-light);
  border:1px solid #BFD8FA;
}
.hero-points li::after{
  content:"";position:absolute;left:5px;top:50%;transform:translateY(-60%) rotate(45deg);
  width:5px;height:9px;border-right:2px solid var(--primary);border-bottom:2px solid var(--primary);
}

/* 数据看板卡片 */
.hero-visual{position:relative;}
.dash-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);padding:20px 22px 22px;
}
.dash-head{display:flex;align-items:center;gap:10px;padding-bottom:14px;border-bottom:1px solid var(--line);}
.dash-head b{font-size:14px;color:var(--ink);}
.dots{display:flex;gap:6px;}
.dots i{width:9px;height:9px;border-radius:50%;background:#E3EAF2;}
.dots i:first-child{background:#FF6B6B;}
.dots i:nth-child(2){background:#FFC24B;}
.dots i:last-child{background:#41CE7B;}
.dash-metrics{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:18px 0;}
.dash-metrics>div{background:var(--bg-gray);border-radius:var(--radius);padding:12px 14px;}
.dash-metrics b{display:block;font-size:21px;color:var(--primary);font-weight:800;letter-spacing:.4px;}
.dash-metrics span{font-size:12px;color:var(--muted);}
.dash-chart{display:flex;align-items:flex-end;gap:9px;height:104px;padding:0 2px;border-bottom:1px solid var(--line);}
.dash-chart i{
  flex:1;border-radius:4px 4px 0 0;
  background:linear-gradient(180deg,#4E9BF7,#1668E3);
  animation:grow 1.2s ease both;
}
.dash-chart i:nth-child(2n){background:linear-gradient(180deg,#8FC2FB,#3E8BEA);}
.dash-list{margin-top:16px;display:grid;gap:10px;}
.dash-list li{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);}
.dash-list b{font-size:13px;color:var(--ink);}
.dash-list b.ok{color:var(--ok);}
.float-badge{
  position:absolute;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:10px 16px;
}
.float-badge b{display:block;font-size:13px;color:var(--ink);}
.float-badge span{font-size:11.5px;color:var(--muted);}
.float-badge.b1{left:-26px;top:16%;}
.float-badge.b2{right:-20px;bottom:14%;}

/* ---------------- 数据条 ---------------- */
.stat-band{background:linear-gradient(90deg,#0F4FBB,#1668E3 55%,#2C86F0);color:#fff;}
.stat-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:30px 24px;text-align:center;}
.stat-inner strong{display:block;font-size:34px;font-weight:800;color:#fff;letter-spacing:.5px;line-height:1.2;}
.stat-inner span{font-size:13.5px;color:rgba(255,255,255,.82);}

/* ---------------- 区块通用 ---------------- */
.sec{padding:76px 0;}
.sec-gray{background:var(--bg-gray);}
.sec-blue{background:linear-gradient(135deg,#0F4FBB,#1668E3);}
.heading{margin-bottom:44px;}
.heading.center{text-align:center;max-width:820px;margin-left:auto;margin-right:auto;}
.heading>p:first-child{font-size:13px;letter-spacing:2px;color:var(--primary);font-weight:600;margin-bottom:10px;}
.heading h2{font-size:clamp(24px,2.6vw,32px);font-weight:800;}
.heading .sub{color:var(--muted);margin-top:14px;font-size:15px;}
.heading.light h2{color:#fff;}
.heading.light>p:first-child{color:rgba(255,255,255,.75);}
.heading.light .sub{color:rgba(255,255,255,.82);}

/* ---------------- 关于 ---------------- */
.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:start;}
.about-text h3{font-size:19px;margin-bottom:16px;}
.about-text p{margin-bottom:16px;color:var(--text);}
.tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px;}
.tags li{
  padding:6px 18px;border-radius:999px;font-size:13.5px;color:var(--primary);
  background:var(--primary-light);border:1px solid #CFE0FB;
}
.card-profile{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:26px 26px 20px;}
.card-profile h3{font-size:17px;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:16px;}
.card-profile dl{margin:0;display:grid;gap:12px;}
.card-profile dl>div{display:flex;gap:14px;font-size:13.5px;}
.card-profile dt{flex:0 0 116px;color:var(--muted);}
.card-profile dd{margin:0;color:var(--ink);flex:1;word-break:break-all;}

/* ---------------- 服务模块 ---------------- */
.product-tabs{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin-bottom:26px;}
.tab{
  padding:12px 24px;border-radius:6px;cursor:pointer;font-size:14.5px;font-family:inherit;
  background:#fff;border:1px solid var(--line-2);color:var(--text);transition:all .22s;
}
.tab:hover{border-color:var(--primary);color:var(--primary);}
.tab.is-active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600;box-shadow:0 6px 16px rgba(22,104,227,.26);}
.product-panel{
  display:none;grid-template-columns:76px 1fr;gap:26px;padding:36px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);
}
.product-panel.is-active{display:grid;animation:fadeUp .4s ease both;}
.pp-icon{
  width:64px;height:64px;border-radius:14px;display:grid;place-items:center;font-size:26px;
  color:var(--primary);background:var(--primary-light);border:1px solid #CFE0FB;
}
.pp-body h3{font-size:21px;margin-bottom:12px;}
.pp-body>p{margin-bottom:18px;}
.pp-list{display:grid;gap:9px;}
.pp-list li{position:relative;padding-left:20px;font-size:14.5px;}
.pp-list li::before{content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;border-radius:50%;background:var(--primary);}

/* ---------------- 卡片栅格 ---------------- */
.card-grid-4,.card-grid-3{display:grid;gap:20px;}
.card-grid-4{grid-template-columns:repeat(4,1fr);}
.card-grid-3{grid-template-columns:repeat(3,1fr);}
.card-grid-3+.card-grid-3,.card-grid-4+.card-grid-3{margin-top:20px;}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px 24px;transition:transform .25s,box-shadow .25s,border-color .25s;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#CFE0FB;}
.card h3{font-size:17px;margin-bottom:10px;}
.card p{font-size:14px;color:var(--text);}
.card-ico{
  display:inline-grid;place-items:center;width:40px;height:40px;border-radius:10px;margin-bottom:16px;
  background:var(--primary-light);color:var(--primary);font-weight:700;font-size:14px;
}
.chip{
  display:inline-block;margin-top:14px;padding:5px 14px;border-radius:999px;font-size:12.5px;
  color:var(--primary);background:var(--primary-light);border:1px solid #CFE0FB;
}

/* ---------------- 流程 ---------------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:26px;counter-reset:flow;}
.flow li{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 20px;overflow:hidden;
}
.flow li b{display:block;font-size:15px;margin-bottom:6px;}
.flow li span{font-size:13px;color:var(--muted);}
.flow li::after{
  content:counter(flow);counter-increment:flow;position:absolute;right:14px;top:10px;
  font-size:26px;font-weight:800;color:#EDF3FC;
}

/* ---------------- 合规 / 试算器 ---------------- */
.compliance-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:24px;align-items:start;}
.compliance-side{display:grid;gap:20px;}
.calc-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);padding:32px;
}
.calc-card h3{font-size:20px;margin-bottom:8px;}
.calc-note{font-size:12.5px;color:var(--muted);margin-bottom:22px;}
.calc-form{display:grid;gap:14px;margin-bottom:20px;}
.calc-form label{font-size:13.5px;color:var(--ink);font-weight:600;}
.calc-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center;}
.calc-row input{
  flex:1 1 170px;height:48px;padding:0 16px;border-radius:var(--radius);
  background:var(--bg-gray);border:1px solid var(--line-2);color:var(--ink);
  font-size:19px;font-weight:700;font-family:inherit;
}
.calc-row input:focus{outline:none;border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(22,104,227,.12);}
.quick-amounts{display:flex;gap:8px;flex-wrap:wrap;}
.quick-amounts button{
  padding:9px 15px;border-radius:6px;font-size:13px;cursor:pointer;font-family:inherit;
  background:#fff;border:1px solid var(--line-2);color:var(--text);transition:all .2s;
}
.quick-amounts button:hover{border-color:var(--primary);color:var(--primary);}
.switch{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text);cursor:pointer;font-weight:400;}
.switch input{width:16px;height:16px;margin-top:4px;accent-color:var(--primary);flex:0 0 auto;}
.calc-result{background:var(--bg-gray);border:1px solid var(--line);border-radius:var(--radius);padding:22px;}
.cr-main{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:18px;}
.cr-main>div{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;}
.cr-main span{display:block;font-size:12.5px;color:var(--muted);margin-bottom:4px;}
.cr-main strong{font-size:23px;font-weight:800;color:var(--ink);}
.cr-hl{background:var(--primary-light) !important;border-color:#CFE0FB !important;}
.cr-hl strong{color:var(--primary);}
.cr-list{display:grid;gap:0;margin-bottom:14px;}
.cr-list li{display:flex;justify-content:space-between;font-size:13.5px;padding:9px 0;border-bottom:1px dashed var(--line-2);}
.cr-list li:last-child{border-bottom:none;}
.cr-list b{color:var(--ink);font-variant-numeric:tabular-nums;}
.cr-tip{font-size:12.5px;color:var(--muted);}
.cmp-list{display:grid;gap:14px;}
.cmp-list li{display:grid;gap:2px;}
.cmp-list b{font-size:14px;color:var(--primary);}
.cmp-list span{font-size:13.5px;}
.mono{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;font-size:12.5px;line-height:1.95;
  color:#0F4FBB;background:var(--primary-light);border:1px solid #CFE0FB;border-radius:var(--radius);
  padding:16px;margin:0;white-space:pre-wrap;word-break:break-word;
}
.cmp-note{font-size:12.5px;color:var(--muted);margin-top:12px;}

/* ---------------- 表格 ---------------- */
.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);margin-bottom:22px;}
.rate-table{width:100%;border-collapse:collapse;min-width:720px;font-size:14px;}
.rate-table th,.rate-table td{padding:15px 20px;text-align:left;border-bottom:1px solid var(--line);}
.rate-table thead th{background:var(--primary-light);color:var(--ink);font-weight:600;font-size:13.5px;}
.rate-table tbody tr:hover{background:#FAFCFF;}
.rate-table td{color:var(--text);font-variant-numeric:tabular-nums;}
.rate-table td.hl{color:var(--primary);font-weight:700;}
.rate-table tbody tr:last-child td{border-bottom:none;}
.eq-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow);}
.eq-card span{display:block;font-size:12.5px;color:var(--muted);margin-bottom:12px;}
.eq-card b{display:block;margin-bottom:12px;}
.eq-card i{font-style:normal;font-size:13px;color:var(--ok);font-weight:600;}

/* ---------------- 业务范围 ---------------- */
.scope-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.scope-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 24px;box-shadow:var(--shadow);}
.scope-card h3{
  font-size:16px;margin-bottom:12px;padding-left:12px;position:relative;
}
.scope-card h3::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:16px;border-radius:2px;background:var(--primary);
}
.scope-card p{font-size:13px;color:var(--muted);line-height:1.9;}
.scope-card .lic{
  display:inline-block;margin-left:6px;padding:1px 8px;border-radius:4px;font-size:11.5px;
  color:var(--warn);background:#FDF4E5;border:1px solid #F3DDB6;vertical-align:middle;
}
.scope-extra{margin-top:12px;padding-top:12px;border-top:1px dashed var(--line-2);color:var(--text) !important;}

/* ---------------- 使用人群 ---------------- */
.who{text-align:center;margin-top:34px;}
.who h3{font-size:16px;margin-bottom:18px;}
.chips{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;}
.chips li{
  padding:9px 22px;border-radius:999px;font-size:14px;background:#fff;border:1px solid var(--line-2);
  color:var(--text);transition:all .22s;
}
.chips li:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light);}

/* ---------------- 安全 ---------------- */
.sec-item{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);border-radius:var(--radius-lg);padding:26px 22px;}
.sec-item b{display:block;font-size:12.5px;letter-spacing:1.4px;color:rgba(255,255,255,.8);margin-bottom:10px;}
.sec-item h3{font-size:16px;color:#fff;margin-bottom:8px;}
.sec-item p{font-size:13px;color:rgba(255,255,255,.8);}

/* ---------------- 联系我们 ---------------- */
.contact-panel{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start;}
.contact-info{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow);}
.contact-info h3{font-size:18px;margin-bottom:20px;}
.contact-info ul{display:grid;gap:14px;}
.contact-info li{display:flex;gap:14px;font-size:14px;}
.contact-info span{flex:0 0 76px;color:var(--muted);}
.contact-info b{color:var(--ink);font-weight:600;}
.ph{color:var(--warn) !important;border-bottom:1px dashed rgba(224,140,27,.5);}

.contact-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow);}
.contact-form h3{font-size:18px;margin-bottom:20px;}
.field{display:grid;gap:8px;margin-bottom:16px;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.field label{font-size:13px;color:var(--ink);font-weight:600;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--radius);background:var(--bg-gray);
  border:1px solid var(--line-2);color:var(--ink);font-size:14.5px;font-family:inherit;transition:all .2s;
}
.field textarea{resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(22,104,227,.12);
}
.field input.is-error,.field textarea.is-error{border-color:#E5484D;background:#FFF6F6;}
.form-tip{font-size:12.5px;color:var(--muted);text-align:center;margin-top:12px;}
.form-tip.is-ok{color:var(--ok);font-weight:600;}

/* ---------------- 页脚 ---------------- */
.site-footer{background:#0E1C33;color:rgba(255,255,255,.72);padding:52px 0 24px;font-size:13.5px;}
.site-footer .logo span{color:#fff;}
.site-footer .logo small{color:rgba(255,255,255,.55);}
.footer-top{display:grid;grid-template-columns:1.2fr 1.3fr;gap:44px;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand p{margin-top:16px;max-width:420px;}
.footer-info{color:rgba(255,255,255,.55) !important;}
.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.footer-links h4{font-size:14.5px;color:#fff;margin-bottom:14px;}
.footer-links a{display:block;margin-bottom:10px;color:rgba(255,255,255,.7);transition:color .2s;}
.footer-links a:hover{color:#fff;}
.footer-bottom{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;padding-top:20px;font-size:12.5px;color:rgba(255,255,255,.55);}
.footer-bottom .ph{color:#FFD591 !important;border-bottom-color:rgba(255,213,145,.5);}

/* ---------------- 动效 ---------------- */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease;}
.reveal.is-in{opacity:1;transform:none;}
@keyframes grow{from{height:0 !important;}}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:none;}}

/* ---------------- 响应式 ---------------- */
@media (max-width:1080px){
  .hero-inner,.about-grid,.compliance-layout,.contact-panel{grid-template-columns:1fr;gap:36px;}
  .hero-visual{max-width:560px;}
  .float-badge.b1{left:0;}
  .float-badge.b2{right:0;}
  .card-grid-4,.scope-grid{grid-template-columns:repeat(2,1fr);}
  .card-grid-3{grid-template-columns:repeat(2,1fr);}
  .flow{grid-template-columns:repeat(2,1fr);}
  .stat-inner{grid-template-columns:repeat(2,1fr);gap:24px;}
  .topbar-links li:nth-child(2){display:none;}
}
@media (max-width:860px){
  .topbar{display:none;}
  .nav{
    position:absolute;top:var(--hd-h);left:0;right:0;flex-direction:column;gap:2px;
    background:#fff;border-bottom:1px solid var(--line);padding:12px 20px 20px;
    box-shadow:0 12px 24px rgba(22,50,95,.10);
    transform:translateY(-140%);transition:transform .3s ease;margin-left:0;z-index:-1;
  }
  .nav.is-open{transform:none;z-index:1;}
  .nav a{padding:12px 14px;font-size:15px;}
  .menu-btn{display:block;}
  .header-cta{display:none;}
  .sec{padding:56px 0;}
  .heading{margin-bottom:32px;}
  .product-panel{grid-template-columns:1fr;padding:26px;gap:16px;}
  .footer-top{grid-template-columns:1fr;}
  .cr-main{grid-template-columns:1fr;}
  .field-row{grid-template-columns:1fr;}
}
@media (max-width:560px){
  .card-grid-4,.card-grid-3,.scope-grid,.flow,.footer-links,.stat-inner{grid-template-columns:1fr;}
  .hero{padding:40px 0 54px;}
  .hero h1{font-size:26px;}
  .container{padding:0 18px;}
  .calc-card,.contact-form,.contact-info{padding:22px;}
  .float-badge{display:none;}
  .dash-metrics{grid-template-columns:1fr;}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ---------------- 链接与备案 ---------------- */
.topbar-links a:hover,.contact-info a:hover{color:var(--primary);}
.footer-bottom a{color:rgba(255,255,255,.72);transition:color .2s;}
.footer-bottom a:hover{color:#fff;}
.beian{color:inherit;}

/* 两列栅格（解决方案区） */
.card-grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
@media (max-width:560px){.card-grid-2{grid-template-columns:1fr;}}

/* ---------------- 导航：业务平台入口 ---------------- */
.nav a.nav-ext{display:inline-flex;align-items:center;gap:4px;color:var(--primary);font-weight:600;}
.nav a.nav-ext i{font-style:normal;font-size:12px;opacity:.75;transition:transform .2s;}
.nav a.nav-ext:hover{background:var(--primary-light);}
.nav a.nav-ext:hover i{transform:translate(1px,-1px);}
@media (max-width:1200px){.nav a{padding:9px 11px;font-size:14.5px;}}