*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  color:#0f1b33;
  line-height:1.7;
  font-size:16px;
  background:
    radial-gradient(1100px 520px at 10% -10%,#dbe8ff 0%,rgba(219,232,255,0) 62%),
    radial-gradient(900px 480px at 94% 2%,#e4eeff 0%,rgba(228,238,255,0) 58%),
    linear-gradient(180deg,#f7faff 0%,#f1f6ff 45%,#edf3ff 100%);
  background-attachment:fixed;
}
img{max-width:100%;display:block;}
a{text-decoration:none;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.35;letter-spacing:-.01em;}
p{margin:0;}
button{font-family:inherit;}

.container{width:100%;max-width:1180px;margin:0 auto;padding-left:20px;padding-right:20px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(27,70,216,.14);
}
.nav-bar{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:70px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:#10224a;letter-spacing:-.01em;white-space:nowrap;}
.brand img{width:38px;height:38px;object-fit:contain;}
.brand span small{display:block;font-size:11px;font-weight:500;color:#5a6b8c;letter-spacing:.08em;}
.nav-links{
  display:flex;align-items:center;justify-content:flex-end;
  flex-wrap:wrap;gap:0;
}
.nav-links a{
  padding:9px 11px;font-size:14.5px;font-weight:500;color:#22304c;border-radius:9px;
  transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:#1b46d8;background:rgba(47,107,255,.09);}
.nav-cta{display:inline-flex;}
.nav-toggle{
  display:none;width:44px;height:40px;border-radius:11px;border:1px solid rgba(27,70,216,.28);
  background:#fff;cursor:pointer;align-items:center;justify-content:center;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#1b46d8;position:relative;border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:#1b46d8;border-radius:2px;transition:transform .25s ease;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#2f6bff,#1b46d8);color:#fff;
  box-shadow:0 16px 28px -16px rgba(27,70,216,.9);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 34px -16px rgba(27,70,216,.95);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:#1b46d8;border-color:rgba(27,70,216,.34);}
.btn-ghost:hover{background:#eff4ff;transform:translateY(-2px);}
.btn-sm{padding:10px 18px;font-size:14px;}

/* ---------- Section base ---------- */
.section{padding:72px 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:780px;margin:0 auto 42px;text-align:center;}
.eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:.18em;font-weight:700;
  color:#1b46d8;background:rgba(47,107,255,.1);border:1px solid rgba(47,107,255,.24);
  padding:6px 15px;border-radius:999px;
}
.section-head h2{font-size:clamp(23px,2.8vw,33px);margin:16px 0 12px;color:#0c1a35;}
.section-head p{color:#465572;font-size:15px;line-height:1.85;}
.panel-title-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:34px;}
.panel-title-row h2{font-size:clamp(22px,2.6vw,30px);color:#0c1a35;}
.panel-title-row p{color:#465572;font-size:14.5px;max-width:560px;margin-top:8px;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;}
.hero-bg{
  position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(560px 320px at 82% 18%,rgba(47,107,255,.2),transparent 68%),
    radial-gradient(460px 280px at 6% 72%,rgba(120,180,255,.22),transparent 70%);
}
.hero-bg::before,.hero-bg::after{
  content:"";position:absolute;border-radius:50%;border:1px solid rgba(47,107,255,.2);
}
.hero-bg::before{width:420px;height:420px;right:-120px;top:-140px;animation:floatSlow 16s ease-in-out infinite;}
.hero-bg::after{width:250px;height:250px;left:-90px;bottom:-110px;border-color:rgba(47,107,255,.14);animation:floatSlow 20s ease-in-out infinite reverse;}
@keyframes floatSlow{
  0%,100%{transform:translate3d(0,0,0);}
  50%{transform:translate3d(0,-22px,0);}
}
.hero-inner{
  position:relative;z-index:2;
  padding-top:66px;padding-bottom:74px;
  display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center;
}
.hero-copy h1{font-size:clamp(29px,4vw,46px);color:#0b1830;margin:18px 0 18px;letter-spacing:-.02em;}
.hero-lead{font-size:16px;color:#3f4e6d;max-width:560px;line-height:1.85;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.hero-points li{
  font-size:13px;color:#1b46d8;background:#fff;border:1px solid rgba(27,70,216,.2);
  padding:7px 14px;border-radius:999px;font-weight:600;
  box-shadow:0 8px 18px -14px rgba(27,70,216,.8);
}
.hero-panel{
  position:relative;overflow:hidden;
  background:linear-gradient(160deg,#ffffff 0%,#e9f0ff 100%);
  border:1px solid rgba(27,70,216,.18);
  border-radius:26px;padding:26px;
  box-shadow:0 34px 64px -38px rgba(18,44,128,.6);
}
.panel-ring{
  position:absolute;width:230px;height:230px;border-radius:50%;
  border:1px solid rgba(47,107,255,.24);
  right:-90px;bottom:-110px;
}
.metric-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;position:relative;z-index:1;}
.metric{
  background:#fff;border:1px solid rgba(27,70,216,.13);border-radius:16px;padding:16px 15px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.metric:hover{transform:translateY(-3px);box-shadow:0 18px 30px -22px rgba(27,70,216,.8);border-color:rgba(27,70,216,.3);}
.metric strong{display:block;font-size:24px;font-weight:800;color:#1b46d8;letter-spacing:-.02em;}
.metric span{display:block;font-size:12.5px;color:#4b5b79;margin-top:6px;line-height:1.5;}
.panel-note{
  position:relative;z-index:1;margin-top:16px;font-size:13px;color:#2a3a5c;
  background:rgba(47,107,255,.08);border:1px dashed rgba(27,70,216,.28);
  border-radius:12px;padding:11px 14px;text-align:center;font-weight:500;
}

/* ---------- About ---------- */
.about-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:46px;align-items:start;}
.about-copy h2{font-size:clamp(22px,2.7vw,31px);color:#0c1a35;margin:16px 0 16px;}
.about-copy p{color:#43526f;font-size:15px;line-height:1.9;margin-bottom:14px;}
.about-mini{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.about-mini span{
  font-size:12.5px;font-weight:600;color:#16307f;background:#e8efff;
  border:1px solid rgba(27,70,216,.18);border-radius:8px;padding:7px 12px;
}
.feature-list{display:grid;gap:12px;}
.feature-item{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid rgba(27,70,216,.13);border-radius:16px;
  padding:16px 18px;transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.feature-item:hover{transform:translateX(4px);box-shadow:0 18px 32px -26px rgba(27,70,216,.85);border-color:rgba(27,70,216,.32);}
.feature-dot{
  flex:0 0 auto;width:34px;height:34px;border-radius:11px;
  background:linear-gradient(135deg,#2f6bff,#1b46d8);
  color:#fff;font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 18px -12px rgba(27,70,216,.95);
}
.feature-item h3{font-size:15.5px;color:#0e1e3c;margin-bottom:3px;}
.feature-item p{font-size:13.5px;color:#4c5c7a;line-height:1.7;}

/* ---------- Service cards ---------- */
.card-grid{display:grid;gap:18px;}
.grid-4{grid-template-columns:repeat(4,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
.service-card{
  position:relative;background:#fff;border:1px solid rgba(27,70,216,.13);border-radius:18px;
  padding:24px 22px;overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.service-card::after{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:linear-gradient(90deg,#2f6bff,#7fb0ff);
  transform:scaleX(0);transform-origin:left;transition:transform .32s ease;
}
.service-card:hover{transform:translateY(-5px);box-shadow:0 26px 44px -32px rgba(20,50,140,.75);border-color:rgba(27,70,216,.3);}
.service-card:hover::after{transform:scaleX(1);}
.service-icon{
  width:42px;height:42px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:rgba(47,107,255,.11);color:#1b46d8;font-weight:800;font-size:14px;margin-bottom:16px;
  border:1px solid rgba(27,70,216,.16);
}
.service-card h3{font-size:16.5px;color:#0d1d3a;margin-bottom:8px;}
.service-card p{font-size:13.8px;color:#4b5b79;line-height:1.78;}

/* ---------- Scene / model tags ---------- */
.scene-groups{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.scene-card{background:#fff;border:1px solid rgba(27,70,216,.13);border-radius:18px;padding:22px;}
.scene-card h3{
  font-size:15px;color:#12307f;margin-bottom:14px;display:flex;align-items:center;gap:9px;font-weight:700;
}
.scene-card h3::before{
  content:"";width:8px;height:8px;border-radius:50%;background:#2f6bff;flex:0 0 auto;
  box-shadow:0 0 0 4px rgba(47,107,255,.16);
}
.tag-cloud{display:flex;flex-wrap:wrap;gap:9px;}
.tag{
  font-size:13px;color:#25344f;background:#f2f6ff;border:1px solid rgba(27,70,216,.15);
  border-radius:8px;padding:6px 11px;transition:background .2s ease,color .2s ease,transform .2s ease,border-color .2s ease;
}
.tag:hover{background:#1b46d8;color:#fff;border-color:#1b46d8;transform:translateY(-2px);}
.model-block{margin-top:30px;background:#fff;border:1px solid rgba(27,70,216,.13);border-radius:18px;padding:24px;}
.model-block h3{font-size:16px;color:#0e1e3c;margin-bottom:16px;}
.model-block .tag{background:#eef4ff;font-weight:500;}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step;}
.step{
  position:relative;background:#fff;border:1px solid rgba(27,70,216,.13);border-radius:18px;padding:24px 20px 22px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:0 24px 40px -32px rgba(20,50,140,.8);}
.step-num{
  width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#2f6bff,#1b46d8);color:#fff;font-weight:800;font-size:14px;margin-bottom:14px;
  box-shadow:0 12px 20px -14px rgba(27,70,216,.95);
}
.step h3{font-size:15.5px;color:#0d1d3a;margin-bottom:7px;}
.step p{font-size:13.5px;color:#4b5b79;line-height:1.75;}

/* ---------- Solutions ---------- */
.solution-card{
  background:#fff;border:1px solid rgba(27,70,216,.13);border-radius:18px;padding:22px;
  display:flex;flex-direction:column;gap:10px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.solution-card:hover{transform:translateY(-4px);box-shadow:0 24px 40px -32px rgba(20,50,140,.8);border-color:rgba(27,70,216,.3);}
.solution-card h3{font-size:16px;color:#0d1d3a;}
.solution-card p{font-size:13.5px;color:#4b5b79;line-height:1.75;}
.solution-card .tag{align-self:flex-start;font-size:12px;}

/* ---------- Network ---------- */
.network-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.network-item{
  background:linear-gradient(160deg,#ffffff,#f0f5ff);
  border:1px solid rgba(27,70,216,.14);border-radius:16px;padding:20px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.network-item:hover{transform:translateY(-4px);box-shadow:0 22px 36px -30px rgba(20,50,140,.85);}
.network-item h3{font-size:15px;color:#12307f;margin-bottom:6px;}
.network-item p{font-size:13px;color:#4b5b79;line-height:1.7;}

/* ---------- Cases ---------- */
.case-card{
  background:#fff;border:1px solid rgba(27,70,216,.13);border-radius:18px;overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease;
}
.case-card:hover{transform:translateY(-5px);box-shadow:0 28px 46px -34px rgba(20,50,140,.85);}
.case-media{
  aspect-ratio:4/3;background:#eef4ff;display:flex;align-items:center;justify-content:center;
  overflow:hidden;border-bottom:1px solid rgba(27,70,216,.1);
}
.case-media img{width:100%;height:100%;object-fit:contain;}
.case-body{padding:16px 18px 20px;}
.case-body h3{font-size:15.5px;color:#0d1d3a;margin-bottom:6px;}
.case-body p{font-size:13.3px;color:#4b5b79;line-height:1.7;}

/* ---------- Compare ---------- */
.compare-wrap{display:grid;grid-template-columns:.72fr 1.28fr;gap:26px;align-items:start;}
.score-card{
  background:linear-gradient(160deg,#1b46d8,#12308f);color:#fff;border-radius:22px;padding:30px 26px;
  box-shadow:0 30px 54px -32px rgba(18,48,143,.9);
}
.score-stars{color:#ffc945;font-size:20px;letter-spacing:3px;display:block;margin-bottom:12px;}
.score-card strong{font-size:52px;font-weight:800;line-height:1;letter-spacing:-.03em;}
.score-card .score-total{font-size:17px;color:#c9d9ff;margin-left:4px;}
.score-card p{font-size:13.5px;color:#d7e3ff;margin-top:12px;line-height:1.7;}
.score-card .btn{margin-top:20px;background:#fff;color:#12308f;font-weight:700;}
.score-card .btn:hover{background:#e9f0ff;}
.table-scroll{overflow-x:auto;border-radius:18px;border:1px solid rgba(27,70,216,.15);background:#fff;}
table{border-collapse:collapse;width:100%;min-width:620px;font-size:14px;}
thead th{
  background:#eef4ff;color:#12307f;font-size:13.5px;font-weight:700;text-align:left;
  padding:14px 16px;border-bottom:1px solid rgba(27,70,216,.16);white-space:nowrap;
}
tbody td{padding:13px 16px;border-bottom:1px solid rgba(27,70,216,.09);color:#3f4e6d;vertical-align:top;}
tbody tr:last-child td{border-bottom:none;}
tbody tr:hover{background:#f7faff;}
td.strong-col{color:#1b46d8;font-weight:600;}

/* ---------- Reviews ---------- */
.review-card{
  background:#fff;border:1px solid rgba(27,70,216,.13);border-radius:18px;padding:22px;
  display:flex;flex-direction:column;gap:12px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.review-card:hover{transform:translateY(-4px);box-shadow:0 26px 42px -32px rgba(20,50,140,.85);}
.review-top{display:flex;align-items:center;gap:12px;}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 auto;
  background:linear-gradient(135deg,#2f6bff,#1b46d8);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
}
.review-top h3{font-size:14.5px;color:#0d1d3a;}
.review-top span{font-size:12.5px;color:#6a7a99;display:block;}
.review-stars{color:#ffb400;font-size:13px;letter-spacing:2px;}
.review-card p{font-size:13.6px;color:#4b5b79;line-height:1.8;}

/* ---------- Token ---------- */
.token-note{
  background:#eaf1ff;border:1px solid rgba(27,70,216,.18);border-radius:14px;
  padding:14px 18px;font-size:13.5px;color:#23375e;line-height:1.75;margin-bottom:20px;
}
.token-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}

/* ---------- FAQ / Help ---------- */
.help-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:36px;}
.help-card{
  background:#fff;border:1px solid rgba(27,70,216,.13);border-radius:16px;padding:20px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.help-card:hover{transform:translateY(-3px);box-shadow:0 22px 36px -30px rgba(20,50,140,.85);}
.help-card h3{font-size:15px;color:#12307f;margin-bottom:6px;}
.help-card p{font-size:13px;color:#4b5b79;line-height:1.7;}
.faq-list{display:grid;gap:12px;max-width:940px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid rgba(27,70,216,.14);border-radius:14px;
  padding:0 20px;transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.faq-item[open]{border-color:rgba(27,70,216,.36);box-shadow:0 22px 38px -32px rgba(20,50,140,.85);background:#fdfeff;}
.faq-item summary{
  list-style:none;cursor:pointer;padding:17px 34px 17px 0;position:relative;
  font-size:15px;font-weight:600;color:#0e1e3c;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";position:absolute;right:0;top:50%;width:9px;height:9px;
  border-right:2px solid #1b46d8;border-bottom:2px solid #1b46d8;
  transform:translateY(-70%) rotate(45deg);transition:transform .26s ease;
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
.faq-body{padding:0 0 18px;font-size:13.8px;color:#4b5b79;line-height:1.85;}

/* ---------- Articles ---------- */
.article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.article-item{
  display:flex;flex-direction:column;gap:8px;background:#fff;
  border:1px solid rgba(27,70,216,.13);border-radius:16px;padding:20px 22px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.article-item:hover{transform:translateY(-4px);box-shadow:0 24px 40px -32px rgba(20,50,140,.85);border-color:rgba(27,70,216,.32);}
.article-item span{font-size:12px;color:#1b46d8;font-weight:700;letter-spacing:.06em;}
.article-item h3{font-size:15.5px;color:#0d1d3a;line-height:1.55;}
.article-item em{font-style:normal;font-size:13.2px;color:#6a7a99;}

/* ---------- Agent banner ---------- */
.agent-banner{
  background:linear-gradient(135deg,#1b46d8 0%,#2f6bff 55%,#4f8bff 100%);
  border-radius:24px;padding:38px 36px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
  box-shadow:0 34px 60px -36px rgba(18,48,143,.95);
  position:relative;overflow:hidden;
}
.agent-banner::after{
  content:"";position:absolute;width:320px;height:320px;border-radius:50%;
  border:1px solid rgba(255,255,255,.24);right:-90px;top:-140px;
}
.agent-banner h2{font-size:clamp(21px,2.4vw,28px);margin-bottom:10px;color:#fff;}
.agent-banner p{font-size:14.5px;color:#e2ebff;max-width:640px;line-height:1.8;}
.agent-banner .btn{background:#fff;color:#12308f;font-weight:700;position:relative;z-index:1;}
.agent-banner .btn:hover{background:#eaf1ff;}

/* ---------- Contact / Form ---------- */
.contact-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:30px;align-items:start;}
.contact-card{background:#fff;border:1px solid rgba(27,70,216,.13);border-radius:20px;padding:28px;}
.contact-card h3{font-size:17px;color:#0d1d3a;margin-bottom:18px;}
.contact-list{display:grid;gap:13px;}
.contact-list li{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:#3f4e6d;}
.contact-list b{color:#12307f;font-weight:700;flex:0 0 76px;font-size:13.5px;}
.contact-list span{word-break:break-all;}
.qr-box{margin-top:20px;padding-top:18px;border-top:1px dashed rgba(27,70,216,.24);display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.qr-box img{width:112px;height:112px;object-fit:contain;border-radius:12px;border:1px solid rgba(27,70,216,.18);padding:5px;background:#fff;}
.qr-box p{font-size:13px;color:#4b5b79;line-height:1.7;}
.qr-box p strong{display:block;color:#12307f;font-size:14px;margin-bottom:4px;}
.lead-form{display:grid;gap:14px;}
.field{display:grid;gap:6px;}
.field label{font-size:13.5px;font-weight:600;color:#23375e;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;font-size:14px;color:#0f1b33;font-family:inherit;
  border:1px solid rgba(27,70,216,.22);border-radius:11px;background:#fbfdff;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{min-height:110px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:#2f6bff;background:#fff;box-shadow:0 0 0 4px rgba(47,107,255,.14);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.form-note{font-size:12.5px;color:#6a7a99;line-height:1.7;}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:0;background:#0d1c3f;color:#c7d5f2;padding:52px 0 24px;
}
.footer-top{display:grid;grid-template-columns:1.25fr .75fr .75fr;gap:34px;align-items:start;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.footer-brand img{width:40px;height:40px;object-fit:contain;}
.footer-brand strong{color:#fff;font-size:17px;display:block;}
.footer-brand span{font-size:12px;color:#8ea5d4;letter-spacing:.08em;}
.site-footer p{font-size:13.5px;color:#a8bce6;line-height:1.85;}
.footer-col h3{color:#fff;font-size:14.5px;margin-bottom:14px;letter-spacing:.03em;}
.footer-col ul{display:grid;gap:9px;}
.footer-col a{font-size:13.5px;color:#a8bce6;transition:color .2s ease;}
.footer-col a:hover{color:#fff;}
.friend-links{
  margin-top:34px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
}
.friend-links h3{color:#fff;font-size:14px;margin-bottom:12px;}
.friend-links ul{display:flex;flex-wrap:wrap;gap:10px;}
.friend-links a{
  font-size:13px;color:#bcd0f5;background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.13);border-radius:8px;padding:6px 12px;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.friend-links a:hover{background:#2f6bff;color:#fff;border-color:#2f6bff;}
.footer-bottom{
  margin-top:26px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:12.5px;color:#8ea5d4;
}
.site-footer .ai-page-home-link{color:#bcd0f5;}
.site-footer .ai-page-home-link:hover{color:#fff;}

/* ---------- Floating ---------- */
.float-bar{position:fixed;right:18px;bottom:22px;z-index:90;display:grid;gap:10px;justify-items:center;}
.float-btn{
  width:52px;height:52px;border-radius:16px;border:none;cursor:pointer;
  background:linear-gradient(135deg,#2f6bff,#1b46d8);color:#fff;font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;flex-direction:column;gap:2px;
  box-shadow:0 18px 30px -16px rgba(27,70,216,.95);
  transition:transform .22s ease,box-shadow .22s ease,opacity .22s ease;
  line-height:1.2;
}
.float-btn:hover{transform:translateY(-3px);}
.float-btn.small{width:46px;height:46px;font-size:15px;background:#fff;color:#1b46d8;border:1px solid rgba(27,70,216,.28);box-shadow:0 14px 26px -18px rgba(27,70,216,.9);}
#backTop{opacity:0;pointer-events:none;}
#backTop.show{opacity:1;pointer-events:auto;}
.kefu-pop{
  position:fixed;right:18px;bottom:88px;z-index:95;width:250px;
  background:#fff;border:1px solid rgba(27,70,216,.2);border-radius:18px;padding:18px;
  box-shadow:0 30px 60px -30px rgba(15,35,90,.55);
  opacity:0;transform:translateY(10px) scale(.97);pointer-events:none;
  transition:opacity .24s ease,transform .24s ease;
}
.kefu-pop.open{opacity:1;transform:none;pointer-events:auto;}
.kefu-pop h4{font-size:14.5px;color:#0d1d3a;margin:0 0 12px;text-align:center;}
.kefu-pop img{width:150px;height:150px;object-fit:contain;margin:0 auto 12px;border-radius:12px;border:1px solid rgba(27,70,216,.16);padding:5px;}
.kefu-pop ul{display:grid;gap:8px;font-size:12.8px;color:#3f4e6d;}
.kefu-pop li{display:flex;justify-content:space-between;gap:8px;}
.kefu-pop li b{color:#1b46d8;font-weight:700;}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .65s ease,transform .65s ease;}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  .hero-bg::before,.hero-bg::after{animation:none;}
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:36px;padding-top:48px;padding-bottom:56px;}
  .about-grid{grid-template-columns:1fr;gap:30px;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .scene-groups{grid-template-columns:1fr 1fr;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .network-grid{grid-template-columns:repeat(2,1fr);}
  .help-grid{grid-template-columns:repeat(2,1fr);}
  .compare-wrap{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr 1fr;}
  .nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-links{
    display:none;position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;
    background:#fff;border-bottom:1px solid rgba(27,70,216,.16);
    box-shadow:0 24px 40px -30px rgba(15,35,90,.6);
    padding:8px 20px 16px;max-height:70vh;overflow-y:auto;
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:13px 4px;border-bottom:1px dashed rgba(27,70,216,.16);border-radius:0;}
  .nav-links a:last-child{border-bottom:none;}
}
@media (max-width:720px){
  .section{padding:54px 0;}
  .section-tight{padding:44px 0;}
  .grid-4,.grid-3,.grid-2,.scene-groups,.steps,.network-grid,.help-grid,.article-list{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .metric-grid{grid-template-columns:1fr 1fr;}
  .footer-top{grid-template-columns:1fr;gap:26px;}
  .agent-banner{padding:28px 22px;}
  .contact-card{padding:22px;}
  .kefu-pop{right:12px;left:12px;width:auto;bottom:84px;}
  .float-bar{right:12px;bottom:16px;}
  .hero-actions .btn{flex:1 1 auto;}
  .brand span small{display:none;}
}