/* 重庆嘉博电气有限公司 · 官网样式
   主色：工业深蓝 #0F4C81 ─ 消防红 #C8102E
   无外部依赖，全部本地资源，适配国内直连 */

:root{
  --ink:#0A1F33;
  --navy:#08243D;
  --navy-2:#0C3355;
  --blue:#0F4C81;
  --blue-2:#1668A8;
  --red:#C8102E;
  --red-dark:#A50D25;
  --mist:#F2F5F8;
  --line:#E2E8EF;
  --muted:#5B6E80;
  --white:#fff;
  --radius:4px;
  --shadow:0 2px 12px rgba(10,31,51,.06);
  --shadow-lg:0 14px 40px rgba(10,31,51,.12);
  --max:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;color:var(--ink);background:var(--white);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}

.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--mist{background:var(--mist)}
.section--tight{padding:64px 0}

/* ---------- 顶部 ---------- */
.topbar{background:var(--navy);color:#B9CBDC;font-size:13px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:38px;gap:16px}
.topbar a{color:#DCE7F1}
.topbar .tb-right{display:flex;gap:22px;align-items:center}

header.site{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(10px);border-bottom:1px solid var(--line);
  transition:box-shadow .25s;
}
header.site.scrolled{box-shadow:0 4px 18px rgba(10,31,51,.08)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:24px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:3px;flex-shrink:0;
  background:linear-gradient(135deg,var(--blue) 0%,var(--navy) 100%);
  color:#fff;display:grid;place-items:center;font-weight:800;font-size:19px;letter-spacing:.5px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.16);
}
.brand-txt strong{display:block;font-size:17.5px;letter-spacing:.5px}
.brand-txt span{display:block;font-size:11.5px;color:var(--muted);letter-spacing:1.6px;text-transform:uppercase;line-height:1.4}

.menu{display:flex;gap:2px;align-items:center}
.menu a{
  padding:9px 13px;font-size:15px;color:#25405A;border-radius:3px;
  transition:color .18s,background .18s;white-space:nowrap;
}
.menu a:hover{color:var(--blue);background:#EEF4F9}
.menu a.active{color:var(--blue);font-weight:600;background:#EEF4F9}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-phone{font-size:15px;font-weight:700;color:var(--navy);white-space:nowrap}
.nav-phone small{display:block;font-size:11px;font-weight:400;color:var(--muted);letter-spacing:.5px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:.2s;white-space:nowrap;
}
.btn-primary{background:var(--red);color:#fff;box-shadow:0 4px 14px rgba(200,16,46,.24)}
.btn-primary:hover{background:var(--red-dark);transform:translateY(-1px);box-shadow:0 8px 22px rgba(200,16,46,.3)}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--navy-2)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.42)}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-line{background:#fff;color:var(--blue);border-color:#CBD9E6}
.btn-line:hover{border-color:var(--blue);background:#F5F9FC}
.btn-sm{padding:9px 18px;font-size:14px}

.burger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:3px;background:#fff;align-items:center;justify-content:center}
.burger span{display:block;width:20px;height:2px;background:var(--ink);position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--ink)}
.burger span::before{top:-6px}.burger span::after{top:6px}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(900px 460px at 78% 12%,rgba(22,104,168,.42) 0%,rgba(22,104,168,0) 62%),
    radial-gradient(620px 380px at 12% 88%,rgba(200,16,46,.22) 0%,rgba(200,16,46,0) 66%),
    linear-gradient(160deg,#08243D 0%,#0B3054 52%,#08243D 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.16;
  background-image:linear-gradient(rgba(255,255,255,.16) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(70% 70% at 50% 30%,#000 0%,transparent 100%);
  -webkit-mask-image:radial-gradient(70% 70% at 50% 30%,#000 0%,transparent 100%);
}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center;padding-top:76px;padding-bottom:76px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:13.5px;letter-spacing:.6px;
  color:#A9C7E2;border:1px solid rgba(169,199,226,.34);border-radius:100px;
  padding:6px 16px 6px 12px;margin-bottom:26px;background:rgba(255,255,255,.05);
}
.eyebrow b{color:#fff;font-weight:600}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--red);box-shadow:0 0 0 4px rgba(200,16,46,.28);font-style:normal}
.hero h1{font-size:clamp(30px,3.5vw,46px);line-height:1.24;letter-spacing:-.5px}
.hero h1 em{font-style:normal;color:#FF7A8C;position:relative;white-space:nowrap}
.hero .lead{margin-top:22px;font-size:16.5px;line-height:1.85;color:#C3D6E7;max-width:34em}
.hero-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.hero-note{margin-top:22px;font-size:13px;color:#8FAAC4;display:flex;gap:18px;flex-wrap:wrap}
.hero-note span::before{content:"✓";color:#4FD1A5;margin-right:6px;font-weight:700}

.hero-card{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  border-radius:6px;padding:8px;backdrop-filter:blur(6px);
}
.hero-card-inner{background:rgba(6,28,48,.62);border-radius:4px;padding:26px 26px 22px}
.hero-card-inner h4{font-size:13px;letter-spacing:2px;color:#8FB3D2;font-weight:600;text-transform:uppercase;margin-bottom:18px}
.hero-fig{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.fig{padding:16px 14px;border-radius:4px;background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.09)}
.fig b{display:block;font-size:26px;line-height:1.15;letter-spacing:-.5px}
.fig b small{font-size:13px;font-weight:500;letter-spacing:0;color:#A9C7E2;margin-left:2px}
.fig span{display:block;margin-top:6px;font-size:12.5px;color:#93AFC9;line-height:1.5}
.fig--wide{grid-column:1/-1}
.fig--accent b{color:#FF8095}
.hero-card-foot{margin-top:16px;padding-top:14px;border-top:1px solid rgba(255,255,255,.11);font-size:12px;color:#7E9DB8;line-height:1.6}

/* ---------- 信任条 ---------- */
.trust{background:var(--navy-2);border-top:1px solid rgba(255,255,255,.08)}
.trust .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;padding:0}
.trust-item{padding:24px 26px;color:#D5E3EF;font-size:14px;display:flex;align-items:center;gap:12px;border-left:1px solid rgba(255,255,255,.08)}
.trust-item:first-child{border-left:0}
.trust-item b{color:#fff}
.trust-item svg{flex-shrink:0;opacity:.85}

/* ---------- 通用标题 ---------- */
.sec-head{max-width:760px;margin-bottom:52px}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center}
.kicker{display:inline-block;font-size:13px;letter-spacing:2.4px;color:var(--red);font-weight:700;text-transform:uppercase;margin-bottom:14px}
.sec-head h2{font-size:clamp(24px,2.5vw,34px);letter-spacing:-.4px}
.sec-head p{margin-top:16px;font-size:16px;color:var(--muted);line-height:1.85}

/* ---------- 三痛点 ---------- */
.pain{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pain-item{background:#fff;border:1px solid var(--line);border-top:3px solid var(--red);border-radius:var(--radius);padding:30px 26px;box-shadow:var(--shadow)}
.pain-item .num{font-size:12px;font-weight:700;letter-spacing:1.5px;color:#C2CEDA}
.pain-item h3{font-size:19px;margin:10px 0 12px}
.pain-item p{font-size:14.5px;color:var(--muted);line-height:1.8}

/* ---------- 产品卡 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:transform .22s,box-shadow .22s,border-color .22s;display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#CBD9E6}
.card-media{height:196px;background:var(--mist);display:grid;place-items:center;overflow:hidden;position:relative}
.card-media img{width:100%;height:100%;object-fit:cover}
.card-media .ph{font-size:12.5px;color:#9BAFBF;letter-spacing:.5px}
.card-body{padding:24px 24px 26px;flex:1;display:flex;flex-direction:column}
.card-body .tag{display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:1px;color:var(--blue);background:#EAF2F8;border-radius:2px;padding:3px 9px;margin-bottom:12px;align-self:flex-start}
.card-body h3{font-size:18.5px;margin-bottom:10px}
.card-body p{font-size:14.5px;color:var(--muted);line-height:1.8;flex:1}
.card-spec{margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);display:flex;flex-wrap:wrap;gap:8px}
.card-spec span{font-size:12.5px;color:var(--blue);background:#F4F8FB;border:1px solid #E3EDF5;border-radius:2px;padding:3px 9px}
.card-link{margin-top:16px;font-size:14px;font-weight:600;color:var(--blue);display:inline-flex;align-items:center;gap:6px}
.card-link::after{content:"→";transition:transform .2s}
.card:hover .card-link::after{transform:translateX(4px)}

/* ---------- 技术数据 ---------- */
.data-band{background:var(--navy);color:#fff;position:relative;overflow:hidden}
.data-band::before{content:"";position:absolute;inset:0;background:radial-gradient(720px 340px at 82% 20%,rgba(22,104,168,.35),transparent 66%)}
.data-band .wrap{position:relative;z-index:1}
.data-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.12);border-radius:4px;overflow:hidden}
.data-cell{background:var(--navy);padding:30px 26px}
.data-cell b{display:block;font-size:32px;letter-spacing:-1px;line-height:1.1}
.data-cell b small{font-size:14px;letter-spacing:0;color:#A9C7E2;margin-left:3px;font-weight:500}
.data-cell span{display:block;margin-top:8px;font-size:13px;color:#93AFC9}
.data-foot{margin-top:22px;font-size:12.5px;color:#7E9DB8;line-height:1.7}

/* ---------- 场景 ---------- */
.scene{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.scene-item{position:relative;border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;background:#fff;transition:.2s}
.scene-item:hover{border-color:var(--blue);background:#FBFDFE}
.scene-item h4{font-size:16.5px;margin-bottom:8px}
.scene-item p{font-size:13.5px;color:var(--muted);line-height:1.7}
.scene-item i{position:absolute;top:18px;right:20px;font-style:normal;font-size:12px;color:#C6D3DE;font-weight:700}

/* ---------- 案例 ---------- */
.case-strip{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;align-items:stretch}
.case-photo{border-radius:4px;overflow:hidden;border:1px solid var(--line);position:relative;min-height:280px}
.case-photo img{width:100%;height:100%;object-fit:cover}
.case-photo figcaption{position:absolute;left:0;right:0;bottom:0;padding:14px 18px;font-size:12.5px;color:#fff;background:linear-gradient(transparent,rgba(8,36,61,.86))}
.case-list{display:flex;flex-direction:column;gap:0;border:1px solid var(--line);border-radius:4px;overflow:hidden;background:#fff}
.case-row{display:flex;gap:16px;padding:18px 22px;border-bottom:1px solid var(--line);font-size:14.5px}
.case-row:last-child{border-bottom:0}
.case-row b{flex-shrink:0;width:104px;color:var(--blue);font-weight:600;font-size:13.5px}
.case-row span{color:#3D5163;line-height:1.7}

/* ---------- 招商 banner ---------- */
.join-band{background:linear-gradient(120deg,#0A2A47 0%,#123f66 100%);color:#fff;border-radius:6px;padding:52px 48px;display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:center;position:relative;overflow:hidden}
.join-band::after{content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(200,16,46,.35),transparent 68%)}
.join-band h2{font-size:clamp(22px,2.2vw,30px);letter-spacing:-.3px}
.join-band p{margin-top:14px;color:#B9CFE2;font-size:15.5px;line-height:1.85}
.join-band .btn{position:relative;z-index:1}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;counter-reset:s}
.flow-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 18px;position:relative}
.flow-item::before{counter-increment:s;content:"0" counter(s);font-size:12px;font-weight:700;color:var(--red);letter-spacing:1px}
.flow-item h4{font-size:15px;margin:8px 0 6px}
.flow-item p{font-size:13px;color:var(--muted);line-height:1.65}

/* ---------- 文章/正文块 ---------- */
.prose{max-width:860px}
.prose h2{font-size:24px;margin:0 0 18px}
.prose h3{font-size:18px;margin:34px 0 12px}
.prose p{font-size:15.5px;color:#33465A;line-height:1.9;margin-bottom:16px}
.prose ul{margin:0 0 18px;padding-left:0}
.prose ul li{position:relative;padding-left:20px;margin-bottom:9px;font-size:15.5px;color:#33465A;line-height:1.85}
.prose ul li::before{content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;border-radius:50%;background:var(--blue)}
.note{background:#F6F9FC;border-left:3px solid var(--blue);padding:16px 20px;border-radius:0 4px 4px 0;font-size:14px;color:#3D5163;line-height:1.8}

/* ---------- 参数表 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:4px;background:#fff}
table.spec{width:100%;border-collapse:collapse;font-size:14.5px;min-width:640px}
table.spec th,table.spec td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line)}
table.spec thead th{background:#F5F8FB;font-weight:600;color:#22394D;font-size:13.5px;letter-spacing:.3px}
table.spec tbody tr:last-child td{border-bottom:0}
table.spec td:first-child{color:#22394D;font-weight:600;width:34%}
table.spec td{color:#3D5163}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--red);color:#fff}
.cta-band .wrap{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:38px 24px;flex-wrap:wrap}
.cta-band h3{font-size:22px;letter-spacing:-.2px}
.cta-band p{margin-top:6px;font-size:14.5px;color:rgba(255,255,255,.86)}

/* ---------- 页脚 ---------- */
footer.site{background:var(--navy);color:#9FB8CD;padding:64px 0 0;font-size:14px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.foot-brand .brand-txt strong{color:#fff}
.foot-brand .brand-txt span{color:#7E9DB8}
.foot-brand p{margin-top:18px;line-height:1.85;font-size:13.5px;color:#8FAAC4}
footer.site h5{color:#fff;font-size:14px;letter-spacing:.5px;margin:0 0 16px;font-weight:600}
footer.site li{margin-bottom:10px;font-size:13.5px}
footer.site a:hover{color:#fff}
.foot-contact li{display:flex;gap:10px;line-height:1.7}
.foot-contact b{color:#D5E3EF;font-weight:500}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:#7E9DB8}
.foot-bottom a{color:#9FB8CD}

/* ---------- 内页头 ---------- */
.page-head{background:linear-gradient(150deg,#08243D 0%,#0D3A5F 100%);color:#fff;padding:64px 0 56px;position:relative;overflow:hidden}
.page-head::after{content:"";position:absolute;inset:0;opacity:.14;background-image:linear-gradient(rgba(255,255,255,.18) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.18) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(60% 80% at 20% 20%,#000,transparent);-webkit-mask-image:radial-gradient(60% 80% at 20% 20%,#000,transparent)}
.page-head .wrap{position:relative;z-index:1}
.crumb{font-size:13px;color:#8FB3D2;margin-bottom:16px}
.crumb a:hover{color:#fff}
.page-head h1{font-size:clamp(26px,3vw,38px);letter-spacing:-.4px}
.page-head p{margin-top:16px;max-width:44em;font-size:16px;color:#C3D6E7;line-height:1.85}

/* ---------- 表单 ---------- */
.form-card{background:#fff;border:1px solid var(--line);border-radius:4px;padding:34px 32px;box-shadow:var(--shadow)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;font-weight:600;color:#22394D;margin-bottom:7px}
.field label i{color:var(--red);font-style:normal;margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;padding:11px 13px;border:1px solid #D4DFE8;border-radius:3px;
  font-size:14.5px;font-family:inherit;color:var(--ink);background:#fff;transition:border-color .18s,box-shadow .18s;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--blue);box-shadow:0 0 0 3px rgba(15,76,129,.1)}
.field textarea{resize:vertical;min-height:104px}
.form-tip{font-size:12.5px;color:var(--muted);margin-top:14px;line-height:1.7}

/* ---------- 杂项 ---------- */
.tag-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px}
.tag-row span{font-size:13px;color:var(--blue);background:#EAF2F8;border-radius:2px;padding:5px 12px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.figure{border-radius:4px;overflow:hidden;border:1px solid var(--line)}
.figure figcaption{padding:11px 16px;font-size:12.5px;color:var(--muted);background:#F7FAFC;border-top:1px solid var(--line)}
.mt-s{margin-top:18px}.mt-m{margin-top:32px}.mt-l{margin-top:52px}
.center{text-align:center}
.muted{color:var(--muted)}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .hero .wrap{grid-template-columns:1fr;gap:40px;padding-top:56px;padding-bottom:56px}
  .hero-card{max-width:520px}
  .grid-3,.pain,.scene{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(3,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .join-band{grid-template-columns:1fr;padding:40px 32px}
  .split{grid-template-columns:1fr;gap:32px}
  .case-strip{grid-template-columns:1fr}
}
@media (max-width:900px){
  .menu{
    position:fixed;left:0;right:0;top:0;bottom:0;background:#fff;flex-direction:column;
    align-items:stretch;padding:88px 24px 24px;gap:0;transform:translateX(100%);
    transition:transform .28s ease;overflow-y:auto;z-index:60;
  }
  .menu.open{transform:translateX(0)}
  .menu a{padding:15px 4px;border-bottom:1px solid var(--line);font-size:16px;border-radius:0}
  .burger{display:flex;position:relative;z-index:61}
  .nav-cta .nav-phone{display:none}
  .topbar .tb-right span:last-child{display:none}
}
@media (max-width:720px){
  .section{padding:60px 0}
  .grid-3,.pain,.scene,.grid-2,.form-row,.data-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr 1fr}
  .trust .wrap{grid-template-columns:1fr 1fr}
  .trust-item{padding:18px 16px;font-size:13px}
  .cta-band .wrap{padding:30px 20px}
  .hero-fig{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr}
  .section--tight{padding:44px 0}
}

a[href^="tel:"]{color:inherit;text-decoration:none}
a[href^="tel:"]:hover{opacity:.85}
a[href^="mailto:"]{color:inherit;text-decoration:none}
a[href^="mailto:"]:hover{opacity:.85}