:root{
  /* ===== 设计令牌（严格对应设计稿） ===== */
  --bg-page:#08090A;
  --bg-topbar:#0A0B0D;
  --bg-card:#0C0D0F;
  --bg-card-2:#0C0D10;
  --bg-strip:#0A0B10;
  --bg-section:#0A0B0F;
  --bg-footer:#060608;
  --accent:#5E6AD2;
  --accent-light:#7C86E8;
  --accent-text:#8B93E8;
  --t-primary:#F7F8F8;
  --t-heading:#EDEEF0;
  --t-body:#8A8F98;
  --t-muted:#5C5F66;
  --t-faint:#3D4046;
  --hair-8:rgba(255,255,255,.08);
  --hair-6:rgba(255,255,255,.06);
  --hair-5:rgba(255,255,255,.05);
  --hair-16:rgba(255,255,255,.16);
  --font-cn:'Noto Sans SC',-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  --font-mono:'JetBrains Mono','SFMono-Regular',Consolas,monospace;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-cn);
  background:var(--bg-page);
  color:var(--t-body);
  font-size:14px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit;}
img{display:block;max-width:100%;}
.container{width:1440px;max-width:100%;margin:0 auto;}
.mono{font-family:var(--font-mono);}

/* ===== 顶部矩阵通栏 ===== */
.topbar{
  height:38px;background:var(--bg-topbar);
  border-bottom:1px solid var(--hair-6);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 120px;font-size:11px;
}
.topbar .left{color:var(--t-muted);font-family:var(--font-mono);}
.topbar .right{color:var(--t-body);font-family:var(--font-mono);}

/* ===== 主导航 ===== */
.header{
  height:64px;background:var(--bg-page);
  border-bottom:1px solid var(--hair-8);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 120px;
  position:sticky;top:0;z-index:100;
  transition:box-shadow .3s;
}
.header.scrolled{box-shadow:0 8px 24px rgba(0,0,0,.45);}
.brand{display:flex;align-items:center;gap:10px;}
.brand .logo{width:26px;height:26px;flex:none;}
.brand .name{font-size:16px;font-weight:700;color:var(--t-heading);}
.brand .en{font-size:10px;color:var(--t-muted);font-family:var(--font-mono);letter-spacing:.5px;}
.nav{display:flex;gap:34px;}
.nav a{font-size:14px;color:var(--t-body);transition:color .2s;}
.nav a:hover{color:var(--t-heading);}
.nav a.active{color:var(--t-heading);font-weight:500;}
.header-cta{display:flex;align-items:center;gap:20px;}
.header-cta .phone{font-size:13px;color:var(--t-body);font-family:var(--font-mono);font-weight:500;}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;
  padding:9px 18px;border-radius:6px;background:var(--accent);
  color:#fff;font-size:13px;font-weight:500;
  transition:background .2s,transform .15s;cursor:pointer;border:none;font-family:var(--font-cn);
}
.btn-primary:hover{background:#6B76DB;}
.btn-primary:active{transform:translateY(1px);}

/* ===== Hero ===== */
.hero{
  background:linear-gradient(180deg,rgba(13,15,26,1) 0%,rgba(8,10,10,1) 100%);
  padding:80px 120px 72px;
  display:flex;gap:64px;align-items:flex-start;
}
.hero-left{width:620px;flex:none;display:flex;flex-direction:column;gap:28px;}
.badge{
  display:inline-flex;align-items:center;gap:8px;align-self:flex-start;
  padding:6px 12px;border-radius:999px;
  background:rgba(94,106,210,.12);
  border:1px solid rgba(94,106,210,.35);
  color:var(--accent-text);font-size:11px;font-weight:500;
  font-family:var(--font-mono);
}
.headline{
  font-size:52px;font-weight:700;color:var(--t-primary);
  line-height:1.2;white-space:pre-line;
}
.subline{
  font-size:16px;color:var(--t-body);line-height:1.75;max-width:600px;
}
.cta-row{display:flex;gap:12px;}
.btn-hero-primary{
  padding:12px 24px;border-radius:6px;background:var(--accent);
  color:#fff;font-size:14px;font-weight:500;cursor:pointer;border:none;
  font-family:var(--font-cn);transition:background .2s,transform .15s;
}
.btn-hero-primary:hover{background:#6B76DB;}
.btn-hero-primary:active{transform:translateY(1px);}
.btn-ghost{
  padding:12px 24px;border-radius:6px;background:transparent;
  border:1px solid rgba(255,255,255,.14);
  color:var(--t-heading);font-size:14px;cursor:pointer;font-family:var(--font-cn);
  transition:border-color .2s,background .2s;
}
.btn-ghost:hover{border-color:rgba(255,255,255,.28);background:rgba(255,255,255,.03);}
.sla-divider{width:100%;height:1px;background:var(--hair-8);}
.sla-row{display:flex;justify-content:space-between;}
.stat{display:flex;flex-direction:column;gap:6px;}
.stat .num{font-size:24px;font-weight:700;color:var(--t-heading);font-family:var(--font-mono);}
.stat .num.hl{color:var(--accent-light);}
.stat .label{font-size:12px;color:var(--t-body);}
.hero-right{flex:1;display:flex;flex-direction:column;gap:14px;align-items:flex-end;padding-top:8px;min-width:0;}
.img-wrap{position:relative;width:576px;max-width:100%;flex:none;}
.img-wrap img{width:576px;height:410px;object-fit:cover;border-radius:10px;max-width:100%;}
.img-wrap .ticks{position:absolute;inset:0;pointer-events:none;}
.cap-row{
  width:576px;max-width:100%;display:flex;justify-content:space-between;align-items:center;
  font-size:11px;color:var(--t-muted);font-family:var(--font-mono);
}

/* ===== 品牌兼容条 ===== */
.trust-strip{
  background:var(--bg-topbar);border-bottom:1px solid var(--hair-5);
  padding:16px 120px;display:flex;gap:24px;align-items:center;
}
.trust-strip .label{font-size:11px;color:var(--t-muted);flex:none;}
.trust-strip .brands{font-size:12px;color:var(--t-body);}

/* ===== 通用板块 ===== */
.section{padding:88px 120px;display:flex;flex-direction:column;gap:44px;}
.section.s-alt{background:var(--bg-section);border-top:1px solid var(--hair-5);border-bottom:1px solid var(--hair-5);}
.sec-head-row{display:flex;align-items:center;gap:12px;}
.sec-idx{font-size:12px;font-weight:700;color:var(--accent-light);font-family:var(--font-mono);}
.sec-line{width:40px;height:1px;background:var(--hair-16);}
.sec-eng{font-size:12px;color:var(--t-muted);font-family:var(--font-mono);letter-spacing:.5px;}
.sec-title{font-size:32px;font-weight:700;color:var(--t-primary);}
.sec-desc{font-size:15px;color:var(--t-body);line-height:1.7;max-width:640px;}

/* ===== S01 业务范围 ===== */
.svc-grid{display:flex;flex-wrap:wrap;gap:20px;}
.svc-card{
  width:calc((100% - 40px)/3);min-width:0;padding:24px;border-radius:10px;
  background:var(--bg-card);border:1px solid var(--hair-8);
  display:flex;flex-direction:column;gap:14px;
  transition:transform .25s,border-color .25s,background .25s;
}
.svc-card:hover{transform:translateY(-3px);border-color:rgba(124,134,232,.35);}
.svc-card .top{display:flex;justify-content:space-between;align-items:center;}
.svc-card .icon{width:36px;height:36px;}
.svc-card .code{font-size:11px;color:var(--t-muted);font-family:var(--font-mono);}
.svc-card h3{font-size:17px;font-weight:600;color:var(--t-heading);}
.svc-card p{font-size:13px;color:var(--t-body);line-height:1.7;max-width:338px;}
.svc-card .tags{font-size:11px;color:var(--t-muted);}
.note-strip{
  display:flex;gap:20px;align-items:center;
  padding:16px 20px;border-radius:8px;
  background:var(--bg-strip);border:1px solid var(--hair-6);
}
.note-strip .nl{font-size:12px;font-weight:500;color:var(--accent-light);flex:none;}
.note-strip .nt{font-size:13px;color:var(--t-body);}

/* ===== S02 服务区域 ===== */
.region-row{display:flex;gap:48px;align-items:flex-start;}
.region-left{width:300px;flex:none;display:flex;flex-direction:column;gap:20px;}
.region-left .big{font-size:56px;font-weight:700;color:var(--t-primary);font-family:var(--font-mono);line-height:1.1;}
.region-left .big-label{font-size:15px;color:var(--t-body);}
.region-left p{font-size:13px;color:var(--t-muted);line-height:1.75;max-width:280px;}
.region-left .link{font-size:13px;font-weight:500;color:var(--accent-light);transition:color .2s;}
.region-left .link:hover{color:var(--accent-text);}
.region-list{flex:1;display:flex;flex-direction:column;gap:10px;min-width:0;}
.region-item{
  display:flex;gap:24px;align-items:center;
  padding:15px 20px;border-radius:8px;
  background:var(--bg-card-2);border:1px solid var(--hair-6);
  transition:border-color .2s;
}
.region-item:hover{border-color:rgba(124,134,232,.3);}
.region-item .rname{font-size:12px;font-weight:700;color:var(--accent-light);font-family:var(--font-mono);width:44px;flex:none;}
.region-item .cities{font-size:14px;color:var(--t-body);}
.region-note{font-size:11px;color:var(--t-muted);}

/* ===== S03 服务案例 ===== */
.case-grid{display:flex;flex-wrap:wrap;gap:20px;}
.case-card{
  width:calc((100% - 20px)/2);min-width:0;border-radius:10px;overflow:hidden;
  background:var(--bg-card);border:1px solid var(--hair-8);
  transition:transform .25s,border-color .25s;
}
.case-card:hover{transform:translateY(-3px);border-color:rgba(124,134,232,.35);}
.case-card img{width:100%;height:300px;object-fit:cover;}
.case-info{padding:18px 22px 20px;display:flex;flex-direction:column;gap:9px;}
.case-info .meta{font-size:11px;color:var(--t-muted);font-family:var(--font-mono);}
.case-info h3{font-size:16px;font-weight:600;color:var(--t-heading);}
.case-info .tags{font-size:11px;color:var(--t-muted);}

/* ===== S04 公司优势 ===== */
.adv-list{display:flex;flex-direction:column;gap:14px;}
.adv-item{
  display:flex;gap:28px;align-items:center;
  padding:26px 28px;border-radius:10px;
  background:var(--bg-card-2);border:1px solid var(--hair-6);
  transition:border-color .25s;
}
.adv-item:hover{border-color:rgba(124,134,232,.3);}
.adv-item .num{font-size:12px;font-weight:700;color:var(--accent-light);font-family:var(--font-mono);width:44px;flex:none;}
.adv-item .body{flex:1;display:flex;flex-direction:column;gap:8px;min-width:0;}
.adv-item .body h3{font-size:18px;font-weight:600;color:var(--t-heading);}
.adv-item .body p{font-size:13.5px;color:var(--t-body);line-height:1.7;max-width:880px;}
.adv-item .metric{font-size:15px;font-weight:700;color:var(--accent-light);font-family:var(--font-mono);flex:none;}

/* ===== S05 公司介绍 ===== */
.about-row{display:flex;gap:56px;align-items:flex-start;}
.about-left{width:600px;flex:none;display:flex;flex-direction:column;gap:24px;}
.about-left p{font-size:15px;color:var(--t-body);line-height:1.85;}
.about-stats{display:flex;flex-wrap:wrap;gap:14px;}
.about-stat{
  width:293px;padding:20px 22px;border-radius:10px;
  background:var(--bg-card-2);border:1px solid var(--hair-6);
  display:flex;flex-direction:column;gap:8px;
}
.about-stat .v{font-size:22px;font-weight:700;color:var(--t-heading);font-family:var(--font-mono);}
.about-stat .l{font-size:12px;color:var(--t-body);}
.about-right{flex:1;display:flex;flex-direction:column;gap:14px;min-width:0;}
.about-right .img-wrap img{width:520px;height:390px;}
.about-right .cap-row{width:520px;}

/* ===== S06 技术论坛 ===== */
.forum-row{display:flex;gap:56px;align-items:flex-start;}
.forum-left{width:320px;flex:none;display:flex;flex-direction:column;gap:16px;}
.forum-left p{font-size:14px;color:var(--t-body);line-height:1.75;max-width:300px;}
.forum-left .link{font-size:13px;font-weight:500;color:var(--accent-light);transition:color .2s;}
.forum-left .link:hover{color:var(--accent-text);}
.forum-list{flex:1;display:flex;flex-direction:column;min-width:0;}
.forum-item{
  display:flex;gap:20px;align-items:center;
  padding:18px 8px;border-radius:8px;
  border:1px solid transparent;border-bottom-color:var(--hair-5);
  transition:background .2s,border-color .2s;
}
.forum-item:first-child{border-top-color:var(--hair-5);}
.forum-item:hover{background:rgba(255,255,255,.02);}
.forum-item .date{font-size:11px;color:var(--t-muted);font-family:var(--font-mono);width:88px;flex:none;}
.forum-item .tag{font-size:11px;font-weight:500;color:var(--accent-light);width:64px;flex:none;}
.forum-item .title{font-size:15px;color:var(--t-heading);flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.forum-item .arrow{font-size:14px;color:var(--t-muted);font-family:var(--font-mono);}

/* ===== 页脚 ===== */
.footer{
  background:var(--bg-footer);border-top:1px solid var(--hair-6);
  padding:72px 120px 36px;display:flex;flex-direction:column;gap:56px;
}
.footer-top{display:flex;gap:24px;justify-content:space-between;flex-wrap:wrap;}
.footer-brand{width:300px;display:flex;flex-direction:column;gap:18px;}
.footer-brand .brow{display:flex;align-items:center;gap:10px;}
.footer-brand .brow .logo{width:24px;height:24px;}
.footer-brand .brow .bname{font-size:15px;font-weight:700;color:var(--t-heading);}
.footer-brand .tagline{font-size:12px;color:var(--t-muted);line-height:1.7;max-width:280px;}
.footer-brand .contact{display:flex;flex-direction:column;gap:8px;font-size:12px;color:var(--t-body);}
.footer-brand .contact .mono{font-family:var(--font-mono);}
.fcol{width:150px;display:flex;flex-direction:column;gap:14px;}
.fcol .ct{font-size:12px;font-weight:700;color:var(--t-heading);}
.fcol a{font-size:13px;color:var(--t-muted);transition:color .2s;}
.fcol a:hover{color:var(--t-body);}
.fcol.matrix{width:260px;}
.fcol.matrix .links{font-size:13px;color:var(--t-muted);line-height:1.9;max-width:240px;}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;
  border-top:1px solid var(--hair-5);padding-top:18px;
  font-size:11px;color:var(--t-faint);
}
.footer-bottom .matrix-id{font-family:var(--font-mono);}

/* ===== 滚动进场动画 ===== */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease;}
.reveal.in{opacity:1;transform:none;}

/* ===== 响应式 ===== */
@media (max-width:1360px){
  .hero,.section,.footer,.trust-strip,.topbar,.header{padding-left:64px;padding-right:64px;}
}
@media (max-width:1180px){
  .hero{flex-direction:column;}
  .hero-left{width:100%;}
  .hero-right{align-items:flex-start;}
  .about-row,.forum-row,.region-row{flex-direction:column;}
  .about-left,.forum-left,.region-left{width:100%;}
  .nav{display:none;}
}
@media (max-width:900px){
  .svc-card{width:calc(50% - 10px);}
  .case-card{width:100%;}
  .about-stat{width:calc(50% - 7px);}
  .topbar .left{display:none;}
  .topbar{justify-content:center;}
}
@media (max-width:640px){
  .hero,.section,.footer,.trust-strip,.topbar,.header{padding-left:20px;padding-right:20px;}
  .svc-card,.about-stat{width:100%;}
  .headline{font-size:38px;}
  .sla-row{flex-wrap:wrap;gap:20px;}
  .adv-item{flex-direction:column;align-items:flex-start;gap:12px;}
  .adv-item .body p{max-width:100%;}
  .forum-item .date{display:none;}
  .footer-brand{width:100%;}
  .img-wrap img{height:280px;}
}

/* ===== 分站专用 ===== */
.site-badge{
  font-size:11px;font-weight:500;color:var(--accent-light);
  font-family:var(--font-mono);padding:4px 10px;border-radius:999px;
  background:rgba(94,106,210,.12);border:1px solid rgba(94,106,210,.35);
  margin-left:6px;letter-spacing:.5px;
}
.breadcrumb{
  font-size:11px;color:var(--t-muted);font-family:var(--font-mono);
  display:flex;gap:8px;align-items:center;
}
.breadcrumb a{color:var(--accent-light);transition:color .2s;}
.breadcrumb a:hover{color:var(--accent-text);}