/* ========================================
   天津工业互联网平台 - 设计系统
   主色#165DFF | 辅助#E8F3FF | 科技风
======================================== */

/* ---- CSS Variables ---- */
:root {
  --primary: #165DFF;
  --primary-dark: #0E42D2;
  --primary-light: #4080FF;
  --primary-bg: #E8F3FF;
  --accent: #00D4FF;
  --accent-2: #7B61FF;
  --dark: #0A1A2F;
  --dark-2: #0D1B2A;
  --dark-3: #1A2B45;
  --text-1: #1D2129;
  --text-2: #4E5969;
  --text-3: #86909C;
  --text-light: #FFFFFF;
  --text-light-2: rgba(255,255,255,0.75);
  --text-light-3: rgba(255,255,255,0.5);
  --bg: #FFFFFF;
  --bg-gray: #F7F8FA;
  --bg-gray-2: #F2F3F5;
  --border: #E5E6EB;
  --border-light: #F0F1F3;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(22,93,255,0.12);
  --shadow-hover: 0 12px 48px rgba(22,93,255,0.18);
  --max-w: 1280px;
  --header-h: 64px;
  --font: "Microsoft YaHei","Source Han Sans SC","PingFang SC","Helvetica Neue",Arial,sans-serif;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

/* ---- Reset ---- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:var(--font);
  color:var(--text-1);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
ul{list-style:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,textarea,select{font-family:inherit;font-size:inherit}

/* ---- Utility ---- */
.container{max-width:var(--max-w);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-dark{background:var(--dark);color:var(--text-light)}
.section-gray{background:var(--bg-gray)}
.text-center{text-align:center}
.text-gradient{
  background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}

/* ---- Section Header ---- */
.sec-head{text-align:center;margin-bottom:56px}
.sec-head .eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:3px;
  text-transform:uppercase;
  color:var(--primary);
  font-weight:600;
  margin-bottom:12px;
}
.sec-head h2{
  font-size:36px;
  font-weight:700;
  line-height:1.3;
  margin-bottom:16px;
}
.sec-head p{
  font-size:16px;
  color:var(--text-2);
  max-width:680px;
  margin:0 auto;
}
.section-dark .sec-head h2{color:var(--text-light)}
.section-dark .sec-head p{color:var(--text-light-2)}
.section-dark .sec-head .eyebrow{color:var(--accent)}

/* ---- Buttons ---- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 32px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:600;
  transition:var(--transition);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-outline{border:2px solid var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.btn-light{background:rgba(255,255,255,0.15);color:#fff;border:1px solid rgba(255,255,255,0.3)}
.btn-light:hover{background:rgba(255,255,255,0.25);transform:translateY(-2px)}
.btn-lg{padding:16px 40px;font-size:16px}

/* ---- Header / Nav ---- */
.header{
  position:fixed;
  top:0;left:0;right:0;
  height:var(--header-h);
  background:rgba(255,255,255,0.95);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border-light);
  z-index:1000;
  transition:var(--transition);
}
.header.scrolled{box-shadow:var(--shadow-sm)}
.header-inner{
  max-width:var(--max-w);
  margin:0 auto;
  padding:0 24px;
  height:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--text-1)}
.logo-icon{
  width:36px;height:36px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:18px;font-weight:700;
}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text small{font-size:11px;color:var(--text-3);font-weight:400}

.nav{display:flex;align-items:center;gap:4px}
.nav a{
  padding:6px 10px;
  font-size:14px;
  color:var(--text-2);
  border-radius:var(--radius-sm);
  transition:var(--transition);
  font-weight:500;
}
.nav a:hover,.nav a.active{color:var(--primary);background:var(--primary-bg)}

.header-actions{display:flex;align-items:center;gap:12px}
.lang-switch{
  display:flex;
  align-items:center;
  border:1px solid var(--border);
  border-radius:20px;
  overflow:hidden;
  font-size:13px;
}
.lang-switch button{
  padding:5px 12px;
  color:var(--text-3);
  transition:var(--transition);
  font-weight:500;
}
.lang-switch button.active{background:var(--primary);color:#fff}

.mobile-toggle{display:none;font-size:24px;color:var(--text-1);padding:4px}

/* ---- Hero ---- */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:center;
  overflow:hidden;
  background:var(--dark);
  color:#fff;
  margin-top:0;
}
.hero-slides{position:absolute;inset:0;z-index:0}
.hero-slide{
  position:absolute;
  inset:0;
  opacity:0;
  transition:opacity 1.2s ease;
  display:flex;
  align-items:center;
}
.hero-slide.active{opacity:1}
.hero-slide-bg{
  position:absolute;inset:0;
  background-size:cover;
  background-position:center;
}
.hero-slide::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(10,26,47,0.92) 0%,rgba(10,26,47,0.7) 50%,rgba(22,93,255,0.3) 100%);
}
.hero-content{position:relative;z-index:2;max-width:var(--max-w);margin:0 auto;padding:0 24px;width:100%}
.hero-text{max-width:680px}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 16px;
  background:rgba(0,212,255,0.15);
  border:1px solid rgba(0,212,255,0.3);
  border-radius:20px;
  font-size:13px;
  letter-spacing:1px;
  color:var(--accent);
  margin-bottom:24px;
  font-weight:500;
}
.hero h1{
  font-size:52px;
  font-weight:800;
  line-height:1.2;
  margin-bottom:20px;
  background:linear-gradient(135deg,#fff 0%,#BFDBFF 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero h1 .accent{color:var(--accent);-webkit-text-fill-color:var(--accent)}
.hero-sub{
  font-size:18px;
  color:var(--text-light-2);
  margin-bottom:36px;
  line-height:1.7;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-dots{
  position:absolute;
  bottom:40px;
  left:50%;
  transform:translateX(-50%);
  display:flex;
  gap:10px;
  z-index:3;
}
.hero-dots span{
  width:32px;height:4px;
  background:rgba(255,255,255,0.3);
  border-radius:2px;
  cursor:pointer;
  transition:var(--transition);
}
.hero-dots span.active{background:var(--accent);width:48px}

/* ---- Digital Human Agent ---- */
.digital-agent{
  position:fixed;
  bottom:90px;
  right:24px;
  z-index:998;
}
.agent-toggle{
  width:60px;height:60px;
  border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:0 4px 20px rgba(22,93,255,0.4);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;
  transition:var(--transition);
  position:relative;
}
.agent-toggle:hover{transform:scale(1.08)}
.agent-toggle::before{
  content:"";
  position:absolute;
  inset:-4px;
  border-radius:50%;
  border:2px solid var(--accent);
  opacity:0;
  animation:agentPulse 2s infinite;
}
@keyframes agentPulse{
  0%{transform:scale(1);opacity:0.6}
  100%{transform:scale(1.4);opacity:0}
}
.agent-toggle svg{width:28px;height:28px;color:#fff}
.agent-panel{
  position:absolute;
  bottom:76px;
  right:0;
  width:380px;
  max-height:520px;
  background:#fff;
  border-radius:var(--radius-lg);
  box-shadow:0 16px 60px rgba(0,0,0,0.18);
  display:none;
  flex-direction:column;
  overflow:hidden;
}
.agent-panel.open{display:flex;animation:agentSlide 0.3s ease}
@keyframes agentSlide{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.agent-header{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  padding:20px;
  color:#fff;
  display:flex;align-items:center;gap:12px;
}
.agent-avatar{
  width:48px;height:48px;
  border-radius:50%;
  background:rgba(255,255,255,0.2);
  display:flex;align-items:center;justify-content:center;
  font-size:24px;
}
.agent-header h4{font-size:16px;font-weight:600}
.agent-header p{font-size:12px;opacity:0.8}
.agent-close{margin-left:auto;color:#fff;font-size:20px;cursor:pointer;opacity:0.7}
.agent-close:hover{opacity:1}
.agent-body{
  flex:1;
  padding:16px;
  overflow-y:auto;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.agent-msg{
  max-width:85%;
  padding:10px 14px;
  border-radius:12px;
  font-size:14px;
  line-height:1.5;
}
.agent-msg.bot{background:var(--bg-gray);color:var(--text-1);align-self:flex-start;border-bottom-left-radius:4px}
.agent-msg.user{background:var(--primary);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}
.agent-quick{
  display:flex;flex-wrap:wrap;gap:8px;
  padding:0 16px 8px;
}
.agent-quick button{
  padding:6px 12px;
  border:1px solid var(--border);
  border-radius:16px;
  font-size:12px;
  color:var(--text-2);
  transition:var(--transition);
}
.agent-quick button:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-bg)}
.agent-input{
  display:flex;
  padding:12px;
  gap:8px;
  border-top:1px solid var(--border-light);
}
.agent-input input{
  flex:1;
  padding:10px 14px;
  border:1px solid var(--border);
  border-radius:20px;
  font-size:14px;
  outline:none;
  transition:var(--transition);
}
.agent-input input:focus{border-color:var(--primary)}
.agent-input button{
  width:40px;height:40px;
  border-radius:50%;
  background:var(--primary);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
}

/* ---- Floating Contact ---- */
.float-contact{
  position:fixed;
  bottom:24px;
  right:24px;
  z-index:997;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.float-item{
  width:48px;height:48px;
  border-radius:50%;
  background:#fff;
  box-shadow:var(--shadow);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;
  transition:var(--transition);
  color:var(--text-2);
  position:relative;
}
.float-item:hover{background:var(--primary);color:#fff;transform:translateY(-4px)}
.float-item svg{width:22px;height:22px}
.float-tooltip{
  position:absolute;
  right:58px;
  top:50%;
  transform:translateY(-50%);
  background:var(--dark);
  color:#fff;
  padding:6px 14px;
  border-radius:6px;
  font-size:13px;
  white-space:nowrap;
  opacity:0;
  pointer-events:none;
  transition:var(--transition);
}
.float-item:hover .float-tooltip{opacity:1;right:62px}

/* ---- Stats Bar ---- */
.stats-bar{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  padding:48px 0;
}
.stat-item{text-align:center}
.stat-num{
  font-size:44px;
  font-weight:800;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  line-height:1.2;
}
.stat-label{font-size:14px;color:var(--text-2);margin-top:8px}
.section-dark .stat-label{color:var(--text-light-2)}

/* ---- Feature Cards ---- */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.feature-card{
  background:#fff;
  border:1px solid var(--border-light);
  border-radius:var(--radius);
  padding:32px 24px;
  transition:var(--transition);
  position:relative;
  overflow:hidden;
}
.feature-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  transform:scaleX(0);
  transform-origin:left;
  transition:var(--transition);
}
.feature-card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-hover);
  border-color:transparent;
}
.feature-card:hover::before{transform:scaleX(1)}
.feature-icon{
  width:56px;height:56px;
  border-radius:var(--radius-sm);
  background:var(--primary-bg);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:20px;
  transition:var(--transition);
}
.feature-card:hover .feature-icon{background:var(--primary)}
.feature-icon svg{width:28px;height:28px;color:var(--primary);transition:var(--transition)}
.feature-card:hover .feature-icon svg{color:#fff}
.feature-card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--text-2);line-height:1.6}
.feature-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:16px}
.feature-tags span{
  font-size:12px;
  padding:3px 10px;
  background:var(--bg-gray);
  border-radius:12px;
  color:var(--text-3);
}

/* ---- Split Layout ---- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split-img{
  border-radius:var(--radius-lg);
  overflow:hidden;
  position:relative;
  min-height:380px;
  background:linear-gradient(135deg,var(--dark-3),var(--primary-dark));
}
.split-img-content{
  position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;
}
.split-content h2{font-size:32px;font-weight:700;margin-bottom:20px;line-height:1.3}
.split-content p{font-size:16px;color:var(--text-2);margin-bottom:24px;line-height:1.7}
.split-list{display:flex;flex-direction:column;gap:16px;margin-top:24px}
.split-list li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  font-size:15px;
  color:var(--text-1);
}
.split-list li::before{
  content:"";
  width:6px;height:6px;
  border-radius:50%;
  background:var(--primary);
  margin-top:8px;
  flex-shrink:0;
}

/* ---- Data Cards ---- */
.data-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.data-card{
  background:rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:var(--radius);
  padding:28px;
  transition:var(--transition);
}
.data-card:hover{background:rgba(255,255,255,0.08);border-color:rgba(0,212,255,0.3)}
.data-card .label{font-size:13px;color:var(--text-light-3);text-transform:uppercase;letter-spacing:1px;margin-bottom:12px}
.data-card .value{font-size:36px;font-weight:700;color:#fff;margin-bottom:8px}
.data-card .value .unit{font-size:16px;font-weight:400;color:var(--text-light-2);margin-left:4px}
.data-card .change{font-size:14px;color:#00D4FF}
.data-card .desc{font-size:13px;color:var(--text-light-3);margin-top:12px}

/* ---- Timeline ---- */
.timeline{position:relative;padding-left:32px}
.timeline::before{
  content:"";
  position:absolute;
  left:8px;top:0;bottom:0;
  width:2px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
}
.timeline-item{position:relative;padding-bottom:40px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
  content:"";
  position:absolute;
  left:-32px;top:4px;
  width:18px;height:18px;
  border-radius:50%;
  background:#fff;
  border:3px solid var(--primary);
  z-index:1;
}
.timeline-year{font-size:14px;font-weight:600;color:var(--primary);margin-bottom:6px}
.timeline-item h4{font-size:17px;font-weight:600;margin-bottom:8px}
.timeline-item p{font-size:14px;color:var(--text-2)}

/* ---- Filter + Cards ---- */
.filter-bar{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  justify-content:center;
  margin-bottom:40px;
}
.filter-btn{
  padding:8px 24px;
  border:1px solid var(--border);
  border-radius:20px;
  font-size:14px;
  color:var(--text-2);
  transition:var(--transition);
  font-weight:500;
}
.filter-btn.active,.filter-btn:hover{background:var(--primary);color:#fff;border-color:var(--primary)}

.card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.info-card{
  background:#fff;
  border:1px solid var(--border-light);
  border-radius:var(--radius);
  overflow:hidden;
  transition:var(--transition);
}
.info-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.info-card-img{
  height:180px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  display:flex;align-items:center;justify-content:center;
  position:relative;
  overflow:hidden;
}
.info-card-img svg{width:48px;height:48px;color:rgba(255,255,255,0.8)}
.info-card-body{padding:24px}
.info-card-body h3{font-size:18px;font-weight:600;margin-bottom:10px}
.info-card-body p{font-size:14px;color:var(--text-2);line-height:1.6;margin-bottom:12px}
.info-card-tag{
  display:inline-block;
  font-size:12px;
  padding:3px 10px;
  background:var(--primary-bg);
  color:var(--primary);
  border-radius:12px;
  font-weight:500;
}
.info-card-link{
  display:inline-flex;
  align-items:center;
  gap:4px;
  font-size:14px;
  color:var(--primary);
  font-weight:500;
  margin-top:12px;
  transition:var(--transition);
}
.info-card-link:hover{gap:8px}

/* ---- Search Box ---- */
.search-box{
  display:flex;
  max-width:600px;
  margin:0 auto;
  background:#fff;
  border-radius:28px;
  box-shadow:var(--shadow);
  overflow:hidden;
}
.search-box input{
  flex:1;
  padding:16px 24px;
  border:none;
  outline:none;
  font-size:15px;
}
.search-box button{
  padding:0 32px;
  background:var(--primary);
  color:#fff;
  font-weight:600;
  font-size:15px;
  transition:var(--transition);
}
.search-box button:hover{background:var(--primary-dark)}

/* ---- Form ---- */
.form-group{margin-bottom:24px}
.form-group label{display:block;font-size:14px;font-weight:500;color:var(--text-1);margin-bottom:8px}
.form-group label .req{color:#F53F3F}
.form-control{
  width:100%;
  padding:12px 16px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  font-size:15px;
  outline:none;
  transition:var(--transition);
  background:#fff;
}
.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(22,93,255,0.1)}
textarea.form-control{min-height:120px;resize:vertical}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-success{
  display:none;
  padding:16px;
  background:#E8FFEA;
  border:1px solid #7BE188;
  border-radius:var(--radius-sm);
  color:#00B42A;
  font-size:14px;
  margin-bottom:20px;
}
.form-success.show{display:block;animation:agentSlide 0.3s ease}

/* ---- Contact Info Cards ---- */
.contact-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.contact-card{
  text-align:center;
  padding:32px 24px;
  background:var(--bg-gray);
  border-radius:var(--radius);
  transition:var(--transition);
}
.contact-card:hover{background:var(--primary-bg);transform:translateY(-4px)}
.contact-card-icon{
  width:56px;height:56px;
  margin:0 auto 16px;
  border-radius:50%;
  background:var(--primary);
  display:flex;align-items:center;justify-content:center;
  color:#fff;
}
.contact-card-icon svg{width:24px;height:24px}
.contact-card h4{font-size:16px;font-weight:600;margin-bottom:8px}
.contact-card p{font-size:14px;color:var(--text-2)}

/* ---- News / Dynamic ---- */
.news-list{display:flex;flex-direction:column;gap:16px}
.news-item{
  display:flex;
  gap:20px;
  padding:20px;
  background:#fff;
  border:1px solid var(--border-light);
  border-radius:var(--radius);
  transition:var(--transition);
  cursor:pointer;
}
.news-item:hover{box-shadow:var(--shadow);transform:translateX(4px)}
.news-date{
  flex-shrink:0;
  width:80px;
  text-align:center;
  border-right:1px solid var(--border-light);
  padding-right:20px;
}
.news-date .day{font-size:28px;font-weight:700;color:var(--primary)}
.news-date .month{font-size:13px;color:var(--text-3)}
.news-content h4{font-size:16px;font-weight:600;margin-bottom:6px}
.news-content p{font-size:14px;color:var(--text-2)}
.news-tag{
  display:inline-block;
  font-size:12px;
  padding:2px 8px;
  background:var(--primary-bg);
  color:var(--primary);
  border-radius:10px;
  margin-top:8px;
}

/* ---- Map / Region ---- */
.region-map{
  background:var(--dark);
  border-radius:var(--radius-lg);
  padding:48px;
  position:relative;
  overflow:hidden;
  min-height:400px;
}
.region-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(140px,1fr));
  gap:16px;
  margin-top:32px;
}
.region-item{
  padding:16px;
  background:rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:var(--radius-sm);
  text-align:center;
  transition:var(--transition);
  cursor:pointer;
}
.region-item:hover{background:rgba(22,93,255,0.2);border-color:var(--primary)}
.region-item h5{color:#fff;font-size:15px;margin-bottom:4px}
.region-item p{font-size:12px;color:var(--text-light-3)}

/* ---- CTA Banner ---- */
.cta-banner{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  border-radius:var(--radius-lg);
  padding:56px 48px;
  text-align:center;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta-banner::before{
  content:"";
  position:absolute;
  top:-50%;right:-20%;
  width:400px;height:400px;
  background:rgba(255,255,255,0.05);
  border-radius:50%;
}
.cta-banner h2{font-size:30px;font-weight:700;margin-bottom:12px;position:relative}
.cta-banner p{font-size:16px;opacity:0.85;margin-bottom:28px;position:relative}

/* ---- Footer ---- */
.footer{
  background:var(--dark);
  color:var(--text-light-2);
  padding:64px 0 24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.5fr;
  gap:48px;
  margin-bottom:48px;
}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.7;margin-bottom:16px}
.footer-col h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:20px}
.footer-col ul li{margin-bottom:12px}
.footer-col ul li a{font-size:14px;color:var(--text-light-2);transition:var(--transition)}
.footer-col ul li a:hover{color:var(--accent)}
.footer-contact li{display:flex;gap:8px;font-size:14px;margin-bottom:12px;align-items:flex-start}
.footer-contact svg{width:18px;height:18px;color:var(--accent);flex-shrink:0;margin-top:2px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.1);
  padding-top:24px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:13px;
  color:var(--text-light-3);
}
.footer-bottom a{color:var(--text-light-3)}
.footer-bottom a:hover{color:var(--accent)}

/* ---- Page Banner (inner pages) ---- */
.page-banner{
  margin-top:var(--header-h);
  padding:80px 0 64px;
  background:linear-gradient(135deg,var(--dark),var(--dark-3));
  color:#fff;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.page-banner::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;bottom:0;
  background:radial-gradient(circle at 30% 50%,rgba(22,93,255,0.15) 0%,transparent 50%),
             radial-gradient(circle at 70% 50%,rgba(0,212,255,0.1) 0%,transparent 50%);
}
.page-banner .container{position:relative;z-index:1}
.page-banner h1{font-size:42px;font-weight:800;margin-bottom:16px}
.page-banner p{font-size:17px;color:var(--text-light-2);max-width:680px;margin:0 auto}

/* ---- Breadcrumb ---- */
.breadcrumb{
  padding:16px 0;
  font-size:14px;
  color:var(--text-3);
}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span{margin:0 8px}

/* ---- Tag Cloud ---- */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag-cloud span{
  padding:8px 16px;
  background:var(--bg-gray);
  border-radius:16px;
  font-size:13px;
  color:var(--text-2);
  transition:var(--transition);
  cursor:pointer;
}
.tag-cloud span:hover{background:var(--primary);color:#fff}

/* ---- Progress / Chart bars ---- */
.bar-chart{display:flex;flex-direction:column;gap:20px}
.bar-row{display:flex;align-items:center;gap:16px}
.bar-label{width:120px;font-size:14px;font-weight:500;flex-shrink:0}
.bar-track{flex:1;height:32px;background:var(--bg-gray);border-radius:16px;overflow:hidden;position:relative}
.bar-fill{
  height:100%;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  border-radius:16px;
  display:flex;align-items:center;
  padding:0 12px;
  color:#fff;
  font-size:13px;
  font-weight:600;
  transition:width 1s ease;
}
.bar-value{width:80px;text-align:right;font-size:14px;font-weight:600;color:var(--text-1)}

/* ---- Responsive ---- */
@media (max-width:1200px){
  .nav{
    position:fixed;
    top:var(--header-h);
    left:0;right:0;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    padding:16px;
    box-shadow:var(--shadow);
    display:none;
    gap:0;
    max-height:calc(100vh - var(--header-h));
    overflow-y:auto;
  }
  .nav.open{display:flex}
  .nav a{padding:12px 16px;border-radius:8px;font-size:15px}
  .mobile-toggle{display:flex}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .data-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:32px}
  .hero h1{font-size:40px}
  .contact-grid{grid-template-columns:1fr}
  .logo-text span{font-size:14px}
  .logo-text small{font-size:10px}
  .logo-icon{width:36px;height:36px;font-size:15px}
  .header-inner{padding:0 16px}
}

@media (max-width:768px){
  .nav a{padding:12px 16px;border-radius:8px}
  .mobile-toggle{display:block}
  .feature-grid,.card-grid,.stats-bar{grid-template-columns:1fr 1fr}
  .hero h1{font-size:30px}
  .hero-sub{font-size:15px}
  .sec-head h2{font-size:26px}
  .section{padding:56px 0}
  .cta-banner{padding:40px 24px}
  .cta-banner h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px;text-align:center}
  .agent-panel{width:calc(100vw - 48px);right:-12px}
  .form-row{grid-template-columns:1fr}
  .bar-label{width:80px;font-size:12px}
  .page-banner h1{font-size:28px}
  .timeline{padding-left:24px}
}

@media (max-width:480px){
  .stats-bar{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr}
  .hero h1{font-size:24px}
  .container{padding:0 16px}
  .float-contact{bottom:16px;right:16px}
  .digital-agent{bottom:80px;right:16px}
}

/* ---- Animations ---- */
.fade-up{
  opacity:0;
  transform:translateY(30px);
  transition:opacity 0.6s ease,transform 0.6s ease;
}
.fade-up.in{opacity:1;transform:translateY(0)}

/* ---- Scroll indicator ---- */
.scroll-ind{
  position:absolute;
  bottom:30px;
  left:50%;
  transform:translateX(-50%);
  z-index:3;
  color:rgba(255,255,255,0.5);
  font-size:13px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
}
.scroll-ind .mouse{
  width:24px;height:38px;
  border:2px solid rgba(255,255,255,0.4);
  border-radius:12px;
  position:relative;
}
.scroll-ind .mouse::before{
  content:"";
  position:absolute;
  top:6px;left:50%;
  transform:translateX(-50%);
  width:4px;height:8px;
  background:#fff;
  border-radius:2px;
  animation:scrollWheel 1.5s infinite;
}
@keyframes scrollWheel{
  0%{opacity:1;top:6px}
  100%{opacity:0;top:18px}
}