:root{
  --bg:#ffffff;
  --text:#0B1020;
  --muted:#52607A;
  --line:rgba(12, 28, 60, 0.10);
  --card:rgba(255,255,255,0.78);
  --card-strong:rgba(255,255,255,0.92);
  --blue:#1E6CFF;
  --cyan:#00C2FF;
  --shadow:0 24px 70px rgba(10, 33, 88, 0.14);
  --radius:18px;
  --radius-sm:14px;
  --container:1160px;
}

*{box-sizing:border-box}
html,body{height:100%}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter, ui-sans-serif, system-ui, -apple-system, "PingFang SC","Microsoft Yahei", Arial, sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.55;
}

a{color:inherit; text-decoration:none}
a:hover{color:var(--blue)}

.container{
  width:min(var(--container), calc(100% - 48px));
  margin-inline:auto;
}

.skip-link{
  position:absolute;
  left:-9999px;
  top:10px;
  z-index:9999;
  background:var(--text);
  color:#fff;
  padding:10px 14px;
  border-radius:10px;
}
.skip-link:focus{left:16px}

/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  backdrop-filter:saturate(160%) blur(14px);
  background:rgba(255,255,255,0.75);
  border-bottom:1px solid var(--line);
}
.header-inner{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
}
.brand{display:flex; align-items:center; gap:12px; min-width:220px}
.brand-mark{
  height:35px; 
}
.brand-mark img{ height:35px;}
.brand-text strong{display:block; font-size:18px; font-weight: 500; letter-spacing:0.2px}
.brand-text em{display:block; font-style:normal; font-size:11px; color:var(--muted)}

.nav{display:flex; gap:6px; align-items:center}
.nav-link{
  font-size:14px;
  padding:10px 12px;
  border-radius:12px;
  color:rgba(11,16,32,0.82);
  transition:background .18s ease, color .18s ease;
}
.nav-link:hover{background:rgba(30,108,255,0.08)}
.nav-link.is-active{
  background:rgba(30,108,255,0.12);
  color:var(--blue);
  font-weight:600;
}

.nav-toggle{
  width:44px;
  height:44px;
  border:none;
  background:rgba(10, 28, 70, 0.06);
  border-radius:14px;
  display:none;
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  background:rgba(11,16,32,0.76);
  margin:4px auto;
  border-radius:2px;
}

/* Hero */
.hero{
  position:relative;
  overflow:hidden;
  padding:78px 0 54px;
}
.hero-bg{
  position:absolute;
  inset:-1px;
  background:
    radial-gradient(1200px 600px at 15% 10%, rgba(30,108,255,0.18), rgba(255,255,255,0) 55%),
    radial-gradient(1000px 520px at 85% 25%, rgba(0,194,255,0.14), rgba(255,255,255,0) 60%),
    linear-gradient(180deg, rgba(7, 22, 60, 0.03), rgba(255,255,255,0.0) 55%);
}
.hero-bg::before{
  content:"";
  position:absolute;
  inset:-2px;
  background-image:
    linear-gradient(to right, rgba(10,40,90,0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(10,40,90,0.06) 1px, transparent 1px);
  background-size:48px 48px;
  opacity:0.32;
  mask-image: radial-gradient(closest-side at 30% 20%, rgba(0,0,0,0.95), rgba(0,0,0,0));
}
.hero-inner{
  position:relative;
  display:grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap:34px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:10px 14px;
  border-radius:999px;
  background:rgba(30,108,255,0.10);
  color:rgba(30,108,255,0.95);
  font-weight:600;
  font-size:13px;
  margin:0 0 14px;
}
.hero-title{
  margin:0 0 12px;
  font-size:50px;
  line-height:1.08;
  letter-spacing:-0.8px;
}
.grad{
  background:linear-gradient(90deg, var(--blue), var(--cyan));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-desc{
  margin:0 0 18px;
  font-size:16px;
  color:rgba(11,16,32,0.72);
  max-width:56ch;
}
.tag-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:10px;
  margin:18px 0 22px;
}
.tag{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:12px 14px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:var(--card);
  box-shadow:0 8px 26px rgba(10, 33, 88, 0.06);
}
.tag-dot{
  width:10px;
  height:10px;
  margin-top:6px;
  border-radius:50%;
  background:linear-gradient(180deg, var(--blue), var(--cyan));
  box-shadow:0 8px 20px rgba(30,108,255,0.22);
  flex:0 0 auto;
}
.hero-actions{display:flex; gap:12px; flex-wrap:wrap}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 16px;
  border-radius:14px;
  font-weight:600;
  font-size:14px;
  border:1px solid transparent;
  cursor:pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
  user-select:none;
}
.btn:active{transform:translateY(1px)}
.btn-primary{
  color:#fff;
  background:linear-gradient(90deg, var(--blue), var(--cyan));
  box-shadow:0 16px 40px rgba(30,108,255,0.20);
}
.btn-primary:hover{box-shadow:0 18px 56px rgba(30,108,255,0.26)}
.btn-ghost{
  background:rgba(10,28,70,0.04);
  border-color:rgba(12,28,60,0.12);
}
.btn-ghost:hover{background:rgba(30,108,255,0.08); border-color:rgba(30,108,255,0.18)}

.hero-visual{display:flex; justify-content:flex-end}
.glass-card{
  width:min(520px, 100%);
  overflow:hidden;
  position:relative;
}
.glass-card::before{
  content:"";
  position:absolute;
  inset:-60px -120px auto auto;
  width:240px;
  height:240px;
  background:radial-gradient(circle at 30% 30%, rgba(0,194,255,0.40), rgba(0,194,255,0));
  transform:rotate(15deg);
}
.glass-top{
  position:relative;
  display:flex;
  gap:8px;
  padding:14px 14px 0;
}
.pill{
  font-size:12px;
  font-weight:600;
  padding:6px 10px;
  border-radius:999px;
  color:rgba(11,16,32,0.78);
  background:rgba(255,255,255,0.7);
  border:1px solid rgba(12,28,60,0.10);
}
.glass-body{position:relative; padding:10px 10px 16px}
.glass-body svg{width:100%; height:auto; display:block}

/* Sections */
.section{padding:72px 0}
.section-alt{
  background:
    radial-gradient(900px 420px at 20% 30%, rgba(30,108,255,0.10), rgba(255,255,255,0) 60%),
    linear-gradient(180deg, rgba(12,28,60,0.03), rgba(255,255,255,0));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}

.glass-body{position:relative; padding:10px 10px 16px}
.glass-body svg{width:100%; height:auto; display:block}
.hero-img{width:100%; height:auto; display:block}
/* Carousel (2 div slides, clickable) */
.carousel{position:relative; width:min(520px, 100%)}
.carousel .glass-body{padding:0}
.carousel-viewport{
  overflow:hidden;
  
}
.carousel-track{
  display:flex;
  width:100%;
  transform:translateX(0%);
  transition:transform .5s cubic-bezier(.2,.8,.2,1);
}
.carousel-slide{
  flex:0 0 100%;
  display:block;
  color:inherit;
  outline:none;
}
.carousel-slide:focus-visible {
  box-shadow:0 0 0 5px rgba(30,108,255,0.18), var(--shadow);
}
.carousel-slide .glass-card{width:100%}

.carousel-btn{
  position:absolute;
  top:50%;
  transform:translateY(-50%);
  width:42px;
  height:42px;
  border:none;
  border-radius:14px;
  background:rgba(255,255,255,0.78);
  border:1px solid rgba(12,28,60,0.10);
  backdrop-filter: blur(10px);
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 10px 22px rgba(10,33,88,0.10);
}
.carousel-btn:hover{background:rgba(255,255,255,0.92)}
.carousel-btn:active{transform:translateY(-50%) scale(0.98)}
.carousel-btn span{font-size:22px; line-height:1; color:rgba(11,16,32,0.72)}
.carousel-btn.prev{left:12px}
.carousel-btn.next{right:12px}

.carousel-dots{
  position:absolute;
  left:50%;
  bottom:-40px;
  transform:translateX(-50%);
  display:flex;
  gap:8px;
  padding:8px 10px;
  border-radius:999px;
  background:rgba(255,255,255,0.55);
  border:1px solid rgba(12,28,60,0.10);
  backdrop-filter: blur(10px);
}
.carousel-dot{
  width:9px;
  height:11px;
  border-radius:50%;
  border:none;
  background:rgba(11,16,32,0.22);
  cursor:pointer;
}
.carousel-dot.is-active{
  background:linear-gradient(180deg, var(--blue), var(--cyan));
  box-shadow:0 10px 22px rgba(30,108,255,0.20);
}

/* Title block (as screenshot) */
.title-block{margin-bottom:22px}
.title-block h2{
  margin:0 0 14px;
  font-size:34px;
  letter-spacing:-0.5px;
}
.title-underline{
  display:inline-block;
  width:46px;
  height:4px;
  border-radius:999px;
  background:linear-gradient(90deg, var(--blue), rgba(30,108,255,0.70));
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px;
  margin-bottom:26px;
}
.section-head h2{
  margin:0;
  font-size:30px;
  letter-spacing:-0.4px;
}
.section-head p{
  margin:0;
  max-width:60ch;
  color:rgba(11,16,32,0.66);
}
.kicker{font-weight:600}

.service-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:18px;
}
.service-card{
  background:var(--card-strong);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 22px 18px;
  box-shadow:0 14px 46px rgba(10, 33, 88, 0.08);
}
.service-card h3{margin:0 0 12px; font-size:18px}
.service-list{margin:0; padding-left:18px; color:rgba(11,16,32,0.72)}
.service-list li{padding:6px 0}

/* Services (cards as screenshot) */
.service-groups{display:grid; gap:26px}
.service-group{display:grid; gap:14px}
.group-title{
  display: flex;       /* 开启弹性布局，让它们横排 */
   align-items: center;  /* 上下居中（最重要） */
   justify-content: space-between; /* 左右分开 */
   gap: 8px; /* 小竖线和标题之间的间距 */
  
}
.group-title {
  display: flex;
  align-items: center;    /* 上下居中 */
  justify-content: space-between; /* 左右分开 */
  
  /* 清除默认间距 */
  margin: 0;
  padding: 0;
}

/* 左边：竖线 + 标题 绑在一起靠左 */
.left-group {
  display: flex;
  align-items: center;
  gap: 8px; /* 竖线和标题之间的距离 */
}

.group-bar{
  width:6px;
  height:22px;
  border-radius:6px;
  background:linear-gradient(180deg, var(--blue), var(--cyan));
  box-shadow:0 12px 28px rgba(30,108,255,0.18);
}
.group-title h3,
.group-title p {
  margin: 0;
}

.cards{display:grid; gap:18px}
.cards-4{grid-template-columns:repeat(4, 1fr)}

.feature-card{
  background:#fff;
  border:1px solid rgba(12,28,60,0.10);
  border-radius:18px;
  padding:22px;
  box-shadow:0 10px 28px rgba(10,33,88,0.06);
  min-height:156px;
}

.icon-box{
  width:44px;
  height:44px;
  border-radius:12px;
  background:rgba(30,108,255,0.08);
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:14px;
}
.icon-box svg{
  width:22px;
  height:22px;
  color:var(--blue);
}
.feature-card h4{
  margin:0 0 8px;
  font-size:16px;
  letter-spacing:-0.2px;
}
.feature-card p{
  margin:0;
  color:rgba(11,16,32,0.62);
  font-size:13px;
  line-height:1.6;
}

.about-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:20px;
  align-items:start;
}
.about-copy{
  background:var(--card-strong);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  box-shadow:0 14px 46px rgba(10, 33, 88, 0.08);
}
.about-copy p{margin:0 0 18px; color:rgba(11,16,32,0.72)}
.about-metrics{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:10px;
}
.metric{
  padding:14px 12px;
  border-radius:16px;
  border:1px solid rgba(12,28,60,0.10);
  background:rgba(10,28,70,0.03);
}
.metric strong{display:block; font-size:22px; letter-spacing:-0.3px}
.metric span{display:block; margin-top:6px; font-size:12px; color:rgba(11,16,32,0.62)}

.milestones{
  background:var(--card-strong);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  box-shadow:0 14px 46px rgba(10, 33, 88, 0.08);
}
.milestones-head h3{margin:0 0 8px; font-size:18px}
.milestones-head p{margin:0 0 14px; color:rgba(11,16,32,0.62)}
.cert-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:10px;
}
.cert{
  height:110px;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  border-radius:16px;
  border:1px dashed rgba(30,108,255,0.28);
  background:linear-gradient(180deg, rgba(30,108,255,0.08), rgba(0,194,255,0.04));
  color:rgba(11,16,32,0.72);
  font-weight:600;
}

/* About layout (as screenshot) */
.about-layout{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:64px;
  align-items:start;
}
.about-subtitle{
  margin:0 0 12px;
  color:var(--blue);
  font-weight:700;
  font-size:18px;
  letter-spacing:-0.2px;
}
.about-text{
  margin:0 0 26px;
  color:rgba(11,16,32,0.70);
  max-width:64ch;
}

.stats{
  display:grid;
  grid-template-columns:repeat(2, minmax(0, 1fr));
  gap:18px 36px;
}
.stat{
  display:flex;
  align-items:center;
  gap:14px;
}
.stat-icon{
  width:28px;
  height:28px;
  color:var(--blue);
  flex:0 0 auto;
}
.stat-icon svg{width:100%; height:100%}
.stat-main strong{
  display:block;
  font-size:18px;
  letter-spacing:-0.2px;
}
.stat-main span{
  display:block;
  margin-top:4px;
  font-size:12px;
  color:rgba(11,16,32,0.58);
  font-weight:600;
}

.cert-placeholder{
  position:relative;
  border-radius:20px;
  border:1.5px dashed rgba(12,28,60,0.14);
  background:rgba(255,255,255,0.65);
  min-height:320px;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:visible;
}
.cert-placeholder img{ height:300px;}
.cert-inner{
  display:flex;
  align-items:center;
  gap:14px;
  color:rgba(11,16,32,0.55);
  text-align:center;
}
.cert-icon{
  width:34px;
  height:34px;
  color:rgba(11,16,32,0.35);
}
.cert-icon svg{width:100%; height:100%}
.cert-title{
  font-weight:800;
  color:rgba(11,16,32,0.56);
}
.cert-note{
  margin-top:4px;
  font-size:12px;
  color:rgba(11,16,32,0.40);
  font-weight:600;
}
.dot-matrix{
  position:absolute;
  right:-14px;
  bottom:-14px;
  width:120px;
  height:74px;
  background-image: radial-gradient(circle, rgba(30,108,255,0.24) 1.6px, transparent 1.8px);
  background-size:10px 10px;
  opacity:0.65;
  pointer-events:none;
}

.contact-grid{
  display:grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap:18px;
  align-items:start;
}
.contact-card{
  background:var(--card-strong);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  box-shadow:0 14px 46px rgba(10, 33, 88, 0.08);
}
.contact-card h3{margin:0 0 12px; font-size:18px}
.contact-dl{margin:0; display:grid; gap:12px}
.contact-dl div{display:grid; grid-template-columns:72px 1fr; gap:10px}
.contact-dl dt{color:rgba(11,16,32,0.58)}
.contact-dl dd{margin:0; color:rgba(11,16,32,0.80)}
.contact-dl a{color:var(--blue); font-weight:600}
.contact-dl a:hover{opacity:0.9}

.qrcode{margin-top:18px; padding-top:18px; border-top:1px solid var(--line)}
.qrcode-box{
  height:240px;
  border-radius:18px;
  border:1px dashed rgba(12,28,60,0.18);
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  background:
    radial-gradient(200px 120px at 35% 30%, rgba(30,108,255,0.10), transparent 60%),
    rgba(10,28,70,0.03);
  color:rgba(11,16,32,0.62);
  font-weight:600;
}
.qrcode-box img{height: 200px;}
.qrcode-note{margin:10px 0 0; font-size:13px; color:rgba(11,16,32,0.62)}

.form{
  background:var(--card-strong);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  box-shadow:0 14px 46px rgba(10, 33, 88, 0.08);
}
.form-head h3{margin:0 0 6px; font-size:18px}
.form-head p{margin:0 0 16px; color:rgba(11,16,32,0.62)}

.form-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:12px;
}
.field{display:flex; flex-direction:column; gap:8px}
.field span{font-size:13px; color:rgba(11,16,32,0.66); font-weight:600}
.field input,.field select,.field textarea{
  width:100%;
  padding:12px 12px;
  border-radius:14px;
  border:1px solid rgba(12,28,60,0.14);
  outline:none;
  background:#fff;
  color:rgba(11,16,32,0.86);
  transition:border-color .16s ease, box-shadow .16s ease;
}
.field textarea{resize:vertical; min-height:120px}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:rgba(30,108,255,0.48);
  box-shadow:0 0 0 4px rgba(30,108,255,0.12);
}
.field-full{grid-column:1 / -1}
.form-actions{
  margin-top:14px;
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
}
.form-tip{font-size:13px; color:rgba(11,16,32,0.62)}
.form-tip.ok{color:#137E40}
.form-tip.err{color:#B42318}

/* Footer */
.site-footer{
  padding:22px 0;
  border-top:1px solid var(--line);
  background:rgba(10,28,70,0.02);
}
.footer-inner{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  align-items:center;
  justify-content:center;
  color:rgba(11,16,32,0.62);
  font-size:13px;
}
.footer-inner a{color:rgba(11,16,32,0.70)}
.footer-inner a:hover{color:var(--blue)}
.footer-sep{opacity:0.35}

/* FAQ 富文本样式 */
.faq-answer-text {
  line-height: 1.8;
  color: rgba(11,16,32,0.85);
}
.faq-answer-text h1, .faq-answer-text h2, .faq-answer-text h3 {
  margin: 20px 0 10px 0;
  font-weight: 600;
  color: #0B1020;
}
.faq-answer-text h1 { font-size: 28px; }
.faq-answer-text h2 { font-size: 24px; }
.faq-answer-text h3 { font-size: 20px; }
.faq-answer-text p { margin: 12px 0; }
.faq-answer-text ul, .faq-answer-text ol {
  margin: 12px 0;
  padding-left: 24px;
}
.faq-answer-text li { margin: 8px 0; }
.faq-answer-text a { color: var(--blue); text-decoration: underline; }
.faq-answer-text blockquote {
  border-left: 4px solid var(--blue);
  padding-left: 16px;
  margin: 16px 0;
  color: var(--muted);
}
.faq-answer-text code {
  background: rgba(10,28,70,0.05);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: monospace;
}
.faq-answer-text pre {
  background: rgba(10,28,70,0.05);
  padding: 16px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 12px 0;
}
.faq-answer-text pre code {
  background: none;
  padding: 0;
}

/* Responsive */
@media (max-width: 980px){
  .hero-inner{grid-template-columns:1fr; gap:22px}
  .hero-visual{justify-content:flex-start}
  .hero-title{font-size:42px}
  .section-head{flex-direction:column; align-items:flex-start}
  .service-grid{grid-template-columns:1fr}
  .cards-4{grid-template-columns:repeat(2, 1fr)}
  .about-grid{grid-template-columns:1fr}
  .about-layout{grid-template-columns:1fr; gap:28px}
  .contact-grid{grid-template-columns:1fr}
}
@media (max-width: 720px){
  .nav{position:fixed; left:14px; right:14px; top:82px; display:none; flex-direction:column; align-items:stretch; padding:12px; border-radius:18px; background:rgba(255,255,255,0.92); border:1px solid rgba(12,28,60,0.12); box-shadow:var(--shadow)}
  .nav.is-open{display:flex}
  .nav-link{padding:12px 12px}
  .nav-toggle{display:inline-flex; align-items:center; justify-content:center}
  .brand{min-width:auto}
  .hero{padding-top:56px}
  .hero-title{font-size:36px}
  .form-grid{grid-template-columns:1fr}
  .metric strong{font-size:20px}
}

@media (max-width: 520px){
  .cards-4{grid-template-columns:1fr}
}