:root{
  --ink:#0f2432;
  --body:#546c7c;
  --line:#dce8f2;
  --brand:#1560ff;
  --brand-deep:#0b3a8f;
  --teal:#0fc2b8;
  --soft:#eef5fd;
  --radius:18px;
  --shadow-sm:0 2px 10px rgba(15,50,90,.05);
  --shadow:0 14px 34px rgba(15,50,90,.09);
  --shadow-lg:0 24px 54px rgba(15,50,90,.13);
  --max:1160px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:88px;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.75;color:var(--body);
  -webkit-font-smoothing:antialiased;
  background-color:#f2f8fd;
  background-image:
    radial-gradient(900px 520px at 10% -8%, rgba(21,96,255,.10), transparent 60%),
    radial-gradient(760px 500px at 92% 2%, rgba(15,194,184,.12), transparent 60%),
    linear-gradient(180deg,#f9fcff 0%,#eef5fc 45%,#f7fbff 100%);
  background-repeat:no-repeat;
  background-attachment:fixed;
  background-size:cover;
}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.32;font-weight:700;letter-spacing:-.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding-left:20px;padding-right:20px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(21,96,255,.10);
}
.nav-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:70px;}
.brand{display:flex;align-items:center;flex:0 0 auto;}
.brand-logo{display:block;width:150px;}
.brand-logo img{display:block;width:100%;max-height:42px;object-fit:contain;}
.nav-links{display:flex;align-items:center;gap:0;margin:0;padding:0;list-style:none;}
.nav-links li{flex:0 0 auto;}
.nav-links a{
  display:block;padding:9px 12px;font-size:14.5px;font-weight:500;color:#21384a;
  border-radius:10px;white-space:nowrap;transition:color .2s ease,background .2s ease;
}
.nav-links a:hover,.nav-links a:focus-visible{color:var(--brand);background:rgba(21,96,255,.08);}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
  background:#fff;cursor:pointer;align-items:center;justify-content:center;padding:0;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-toggle:hover{border-color:rgba(21,96,255,.35);box-shadow:0 6px 16px rgba(21,96,255,.12);}
.nav-toggle span{display:block;width:18px;height:2px;background:#21384a;border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:#21384a;border-radius:2px;
  transition:transform .25s ease,top .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:12px 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
}
.btn-primary{background:linear-gradient(135deg,#1560ff,#0aa8c8);color:#fff;box-shadow:0 10px 24px rgba(21,96,255,.30);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(21,96,255,.38);}
.btn-primary:active{transform:translateY(0) scale(.985);}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--shadow-sm);}
.btn-ghost:hover{border-color:rgba(21,96,255,.40);color:var(--brand);transform:translateY(-2px);box-shadow:0 12px 26px rgba(21,96,255,.14);}
.btn-sm{padding:9px 20px;font-size:14px;}

/* ---------- hero ---------- */
.hero{padding:64px 0 44px;overflow:hidden;position:relative;}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;padding:7px 16px;border-radius:999px;
  background:rgba(21,96,255,.08);color:var(--brand-deep);font-size:13.5px;font-weight:600;
  border:1px solid rgba(21,96,255,.16);
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:linear-gradient(135deg,#1560ff,#0fc2b8);}
.hero h1{
  font-size:clamp(30px,4.3vw,50px);line-height:1.24;margin-top:20px;letter-spacing:-1px;
}
.hero-lead{margin-top:18px;font-size:16.5px;line-height:1.85;max-width:580px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:26px;font-size:14px;color:#3d5b6e;}
.hero-points li{display:flex;align-items:center;gap:9px;}
.hero-points li::before{content:"";width:7px;height:7px;border-radius:50%;background:linear-gradient(135deg,#1560ff,#0fc2b8);flex:0 0 auto;}

.hero-panel{
  position:relative;border-radius:26px;padding:26px 24px;
  background:linear-gradient(160deg,rgba(255,255,255,.98),rgba(236,246,255,.96));
  border:1px solid rgba(21,96,255,.16);
  box-shadow:var(--shadow-lg);
}
.panel-head{display:flex;align-items:center;gap:9px;font-size:13.5px;font-weight:700;color:var(--brand-deep);letter-spacing:.4px;}
.panel-head::before{content:"";width:8px;height:8px;border-radius:50%;background:#0fc2b8;box-shadow:0 0 0 4px rgba(15,194,184,.18);}
.panel-desc{margin-top:12px;font-size:14px;line-height:1.75;color:#48637a;}
.model-chips{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 20px;}
.model-chips li{
  padding:6px 13px;border-radius:999px;background:#fff;border:1px solid rgba(21,96,255,.16);
  font-size:13px;font-weight:500;color:#26445a;box-shadow:0 2px 6px rgba(21,96,255,.06);
  transition:transform .2s ease,box-shadow .2s ease,color .2s ease;
}
.model-chips li:hover{transform:translateY(-2px);box-shadow:0 8px 16px rgba(21,96,255,.14);color:var(--brand);}
.panel-rows{display:grid;gap:10px;padding-top:16px;border-top:1px dashed rgba(21,96,255,.20);}
.panel-row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13.5px;}
.panel-row span{color:#6a839a;}
.panel-row strong{color:var(--ink);font-weight:600;text-align:right;}

.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:44px;}
.stat{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px 22px;
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.stat:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(21,96,255,.24);}
.stat strong{display:block;font-size:28px;line-height:1.2;color:var(--brand-deep);font-weight:700;}
.stat span{display:block;margin-top:4px;font-size:13.5px;color:var(--body);}

/* ---------- section base ---------- */
.section{padding:72px 0;}
.section-head{max-width:780px;margin:0 auto 44px;text-align:center;}
.section-tag{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:2px;
  color:var(--brand);margin-bottom:12px;
}
.section-head h2{font-size:clamp(24px,3vw,34px);letter-spacing:-.6px;}
.section-head p{margin-top:14px;font-size:15.5px;color:var(--body);}
.section-head.left{text-align:left;margin-left:0;margin-right:0;}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:start;}
.about-copy h2{font-size:clamp(24px,3vw,34px);letter-spacing:-.6px;}
.about-copy p{margin-top:16px;font-size:15.5px;line-height:1.85;}
.about-list{display:grid;grid-template-columns:1fr 1fr;gap:12px 18px;margin-top:26px;}
.about-list li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;line-height:1.6;color:#3b5a6d;}
.about-list li::before{
  content:"✓";display:flex;align-items:center;justify-content:center;flex:0 0 auto;
  width:19px;height:19px;margin-top:4px;border-radius:50%;
  background:rgba(15,194,184,.14);color:#0a8f88;font-size:12px;font-weight:700;line-height:1;
}
.about-media{
  border-radius:22px;overflow:hidden;border:1px solid var(--line);
  background:#eef5fd;box-shadow:var(--shadow);
}
.about-media img{display:block;width:100%;height:auto;}
.cloud-wrap{margin-top:44px;padding-top:32px;border-top:1px dashed var(--line);}
.cloud-title{font-size:13.5px;font-weight:700;color:var(--brand-deep);letter-spacing:1px;}
.cloud{display:flex;flex-wrap:wrap;gap:9px;margin-top:16px;}
.cloud li{
  padding:7px 15px;border-radius:10px;background:#fff;border:1px solid var(--line);
  font-size:13.5px;color:#2c4a5e;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
}
.cloud li:hover{transform:translateY(-2px);border-color:rgba(21,96,255,.30);color:var(--brand);box-shadow:0 8px 16px rgba(21,96,255,.10);}

/* ---------- services ---------- */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.svc{
  position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);
  border-radius:18px;padding:26px 24px;box-shadow:var(--shadow-sm);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.svc::after{
  content:"";position:absolute;right:-40px;bottom:-40px;width:140px;height:140px;border-radius:50%;
  background:radial-gradient(circle,rgba(21,96,255,.10),transparent 70%);
  opacity:0;transition:opacity .3s ease;
}
.svc:hover::after{opacity:1;}
.svc:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:rgba(21,96,255,.24);}
.svc-icon{
  width:44px;height:44px;border-radius:13px;position:relative;
  background:linear-gradient(135deg,#1560ff,#0fc2b8);
  box-shadow:0 8px 18px rgba(21,96,255,.22);
}
.svc-icon::after{content:"";position:absolute;inset:13px;border:2px solid rgba(255,255,255,.92);border-radius:6px;}
.svc h3{font-size:17.5px;margin:16px 0 10px;}
.svc p{font-size:14px;line-height:1.78;color:var(--body);}

/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.flow-step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:26px 20px;text-align:center;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.flow-step:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(21,96,255,.24);}
.flow-step:not(:last-child)::after{
  content:"";position:absolute;right:-11px;top:50%;width:7px;height:7px;
  border-right:2px solid rgba(21,96,255,.35);border-top:2px solid rgba(21,96,255,.35);
  transform:translateY(-50%) rotate(45deg);
}
.flow-num{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;
  border-radius:12px;background:linear-gradient(135deg,#1560ff,#0fc2b8);color:#fff;
  font-weight:700;font-size:15px;margin-bottom:14px;
}
.flow-step h3{font-size:16.5px;}
.flow-step p{margin-top:8px;font-size:13.8px;line-height:1.72;color:var(--body);}

/* ---------- solutions ---------- */
.solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.sol{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 24px;
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.sol:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:rgba(21,96,255,.24);}
.sol h3{font-size:17px;margin-bottom:10px;}
.sol p{font-size:14px;line-height:1.78;color:var(--body);}
.sol-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px;}
.sol-tags span{
  padding:4px 11px;border-radius:999px;background:rgba(21,96,255,.07);
  color:#2b5bab;font-size:12.5px;font-weight:500;
}

/* ---------- network ---------- */
.network-card{
  border-radius:24px;padding:36px;
  background:linear-gradient(135deg,rgba(21,96,255,.08),rgba(15,194,184,.10));
  border:1px solid rgba(21,96,255,.16);
  display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;
}
.network-head h2{font-size:clamp(22px,2.6vw,30px);}
.network-head p{margin-top:14px;font-size:15px;line-height:1.85;color:#3d5b6e;}
.network-list{display:flex;flex-wrap:wrap;gap:10px;}
.network-list li{
  padding:9px 18px;border-radius:12px;background:rgba(255,255,255,.92);
  border:1px solid rgba(21,96,255,.16);font-size:14px;font-weight:500;color:#26445a;
  transition:transform .2s ease,box-shadow .2s ease,color .2s ease;
}
.network-list li:hover{transform:translateY(-3px);color:var(--brand);box-shadow:0 10px 20px rgba(21,96,255,.14);}

/* ---------- timeline ---------- */
.timeline{display:grid;gap:14px;max-width:900px;margin:0 auto;}
.tl-item{
  display:flex;gap:18px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:16px;padding:20px 24px;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.tl-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(21,96,255,.24);}
.tl-num{
  flex:0 0 auto;width:44px;height:44px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(21,96,255,.09);color:var(--brand);font-weight:700;font-size:15px;
}
.tl-body h3{font-size:16.5px;}
.tl-body p{margin-top:6px;font-size:14px;line-height:1.75;color:var(--body);}

/* ---------- cases ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:rgba(21,96,255,.24);}
.case-media{
  aspect-ratio:16/10;background:linear-gradient(160deg,#f2f8ff,#e6f1fb);
  display:flex;align-items:center;justify-content:center;overflow:hidden;
}
.case-media img{width:100%;height:100%;object-fit:contain;display:block;}
.case-body{padding:20px 22px 24px;}
.case-body h3{font-size:16.5px;margin-bottom:8px;}
.case-body p{font-size:14px;line-height:1.75;color:var(--body);}

/* ---------- review ---------- */
.review-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:36px;align-items:start;}
.score-card{
  border-radius:24px;padding:34px 30px;text-align:center;color:#eaf3ff;
  background:linear-gradient(150deg,#0b2a66,#1560ff 70%,#0aa8c8);
  box-shadow:0 24px 50px rgba(11,58,143,.28);
}
.score-value{font-size:64px;line-height:1;font-weight:800;color:#fff;letter-spacing:-2px;}
.score-value small{font-size:20px;font-weight:600;opacity:.8;margin-left:4px;}
.score-stars{margin-top:14px;font-size:20px;letter-spacing:4px;color:#ffd76a;}
.score-label{margin-top:12px;font-size:14.5px;color:#dce9ff;}
.score-desc{margin-top:18px;padding-top:18px;border-top:1px solid rgba(255,255,255,.22);font-size:13.5px;line-height:1.8;color:#cfdffb;text-align:left;}
.table-wrap{
  overflow-x:auto;-webkit-overflow-scrolling:touch;
  border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:var(--shadow-sm);
}
table{width:100%;border-collapse:collapse;min-width:720px;}
caption{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);}
th,td{padding:14px 16px;font-size:14px;text-align:center;border-bottom:1px solid var(--line);}
th{background:#f2f8ff;color:#1c3b52;font-weight:700;font-size:13.5px;white-space:nowrap;}
td:first-child,th:first-child{text-align:left;font-weight:600;color:var(--ink);}
tbody tr:last-child td{border-bottom:0;}
tbody tr:hover td{background:#f8fbff;}
td.best{background:rgba(21,96,255,.06);color:#124bc4;font-weight:600;}

/* ---------- pricing ---------- */
.price-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.price-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 22px;
  box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.price-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:rgba(21,96,255,.28);}
.price-card h3{font-size:16.5px;}
.price-badge{
  display:inline-block;margin-top:10px;padding:4px 12px;border-radius:999px;
  background:rgba(21,96,255,.08);color:var(--brand);font-size:12.5px;font-weight:600;
  align-self:flex-start;
}
.price-card ul{margin-top:16px;display:grid;gap:9px;}
.price-card li{font-size:13.8px;line-height:1.7;color:var(--body);padding-left:16px;position:relative;}
.price-card li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:#0fc2b8;}
.price-note{margin-top:22px;text-align:center;font-size:13.5px;color:#6a839a;}

/* ---------- reviews ---------- */
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.review{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;
  box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:14px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.review:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:rgba(21,96,255,.22);}
.review-stars{font-size:14px;letter-spacing:2px;color:#f5a524;}
.review-text{font-size:14.5px;line-height:1.82;color:#3f5b6d;}
.review-user{
  display:flex;align-items:center;gap:12px;margin-top:auto;
  padding-top:14px;border-top:1px solid var(--line);
}
.review-avatar{
  width:38px;height:38px;border-radius:50%;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#1560ff,#0fc2b8);color:#fff;font-weight:700;font-size:15px;
}
.review-user strong{display:block;font-size:14px;color:var(--ink);line-height:1.4;}
.review-user span{display:block;font-size:12.5px;color:#7a91a3;line-height:1.4;}

/* ---------- help ---------- */
.help-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;align-items:start;}
.help-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;
  box-shadow:var(--shadow-sm);
}
.help-card h3{font-size:17px;margin-bottom:16px;}
.help-links{display:grid;gap:10px;}
.help-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 16px;border-radius:12px;background:#f7fbff;border:1px solid var(--line);
  font-size:14px;color:#26445a;
  transition:border-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.help-links a:hover{border-color:rgba(21,96,255,.30);color:var(--brand);transform:translateX(3px);box-shadow:0 8px 16px rgba(21,96,255,.08);}
.help-links a::after{content:"›";font-size:18px;color:rgba(21,96,255,.55);line-height:1;}
.article-list{display:grid;gap:2px;}
.article-list li{border-bottom:1px dashed var(--line);}
.article-list li:last-child{border-bottom:0;}
.article-list a{
  display:flex;align-items:center;gap:12px;padding:13px 4px;font-size:14.5px;color:#26445a;
  transition:color .2s ease,padding-left .2s ease;
}
.article-list a:hover{color:var(--brand);padding-left:6px;}
.article-list a::before{content:"";width:6px;height:6px;border-radius:50%;background:rgba(21,96,255,.5);flex:0 0 auto;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:2px 22px;
  box-shadow:var(--shadow-sm);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item[open]{border-color:rgba(21,96,255,.30);box-shadow:0 12px 28px rgba(21,96,255,.10);}
.faq-item summary{
  cursor:pointer;list-style:none;padding:16px 32px 16px 0;position:relative;
  font-size:15.5px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";position:absolute;right:4px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:translateY(-70%) rotate(45deg);transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
.faq-item p{padding:0 0 18px;font-size:14.5px;line-height:1.82;color:var(--body);}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:36px;align-items:start;}
.contact-card{
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;
  box-shadow:var(--shadow-sm);
}
.contact-item{display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed var(--line);}
.contact-item:last-child{border-bottom:0;padding-bottom:0;}
.contact-item .ci-label{flex:0 0 86px;font-size:13.5px;color:#7a91a3;line-height:1.7;}
.contact-item .ci-value{font-size:14.5px;color:var(--ink);line-height:1.7;word-break:break-all;}
.contact-item .ci-value a{color:var(--brand);}
.contact-item .ci-value a:hover{text-decoration:underline;}
.qr-box{
  margin-top:22px;background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:18px;text-align:center;box-shadow:var(--shadow-sm);
}
.qr-media{width:132px;height:132px;margin:0 auto 10px;}
.qr-media img{display:block;width:100%;height:100%;object-fit:contain;}
.qr-box p{font-size:13px;color:#6a839a;}

.form-card{
  background:#fff;border:1px solid var(--line);border-radius:22px;padding:30px;
  box-shadow:var(--shadow);
}
.form-card h3{font-size:19px;margin-bottom:6px;}
.form-card .form-tip{font-size:13.5px;color:#7a91a3;margin-bottom:22px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px;}
.field label{font-size:13.5px;font-weight:600;color:#2b4757;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:11px;
  font-size:14.5px;font-family:inherit;color:var(--ink);background:#fbfdff;
  outline:none;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:rgba(21,96,255,.55);background:#fff;box-shadow:0 0 0 3px rgba(21,96,255,.12);
}
.field textarea{min-height:112px;resize:vertical;line-height:1.7;}
.form-submit{width:100%;margin-top:4px;}

/* ---------- join band ---------- */
.join-band{
  border-radius:24px;padding:38px 40px;
  background:linear-gradient(135deg,#0b2a66,#1560ff 62%,#0aa8c8);
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:0 24px 50px rgba(11,58,143,.26);
}
.join-band h2{color:#fff;font-size:clamp(21px,2.6vw,29px);}
.join-band p{color:#d5e5ff;font-size:14.5px;line-height:1.8;margin-top:10px;max-width:620px;}
.join-band .btn{background:#fff;color:#0b3a8f;box-shadow:0 12px 26px rgba(0,0,0,.16);flex:0 0 auto;}
.join-band .btn:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(0,0,0,.22);}

/* ---------- footer ---------- */
.site-footer{
  margin-top:64px;
  background:linear-gradient(160deg,#0b2136,#123453);
  color:#c2d4e2;
  padding:44px 0 26px;
}
.footer-top{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.footer-name{font-size:19px;font-weight:700;color:#fff;letter-spacing:.5px;}
.footer-desc{margin-top:8px;font-size:13.8px;color:#9fbbd2;line-height:1.8;max-width:420px;}
.footer-nav{display:flex;flex-wrap:wrap;gap:6px 4px;align-items:flex-start;}
.footer-nav a{
  display:block;padding:6px 12px;font-size:13.8px;color:#b7cee0;border-radius:8px;
  transition:color .2s ease,background .2s ease;
}
.footer-nav a:hover{color:#fff;background:rgba(255,255,255,.10);}
.footer-friend{
  margin-top:28px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;gap:16px;flex-wrap:wrap;align-items:flex-start;
}
.footer-friend .ff-label{font-size:13px;color:#8fadc6;flex:0 0 auto;padding-top:5px;}
.friend-list{display:flex;flex-wrap:wrap;gap:4px 2px;}
.friend-list a{
  display:block;padding:5px 11px;font-size:13px;color:#a9c5da;border-radius:7px;
  transition:color .2s ease,background .2s ease;
}
.friend-list a:hover{color:#fff;background:rgba(255,255,255,.10);}
.footer-bottom{
  margin-top:24px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#8fadc6;
}
.footer-bottom a{color:#b7cee0;}
.footer-bottom a:hover{color:#fff;}
.ai-page-home-link{padding:5px 12px;border-radius:8px;background:rgba(255,255,255,.08);}
.ai-page-home-link:hover{background:rgba(255,255,255,.16);}

/* ---------- float ---------- */
.fab-stack{
  position:fixed;right:18px;bottom:22px;z-index:80;
  display:flex;flex-direction:column;align-items:flex-end;gap:10px;
}
.fab{
  width:52px;height:52px;border-radius:50%;border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:transform .22s ease,box-shadow .25s ease;
}
.fab:hover{transform:translateY(-3px);}
.fab-service{background:linear-gradient(135deg,#1560ff,#0aa8c8);color:#fff;box-shadow:0 12px 26px rgba(21,96,255,.34);}
.fab-top{background:#fff;color:#23506f;border:1px solid var(--line);box-shadow:0 10px 22px rgba(15,50,90,.14);}
.fab-panel{
  position:absolute;right:66px;bottom:0;width:224px;
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;
  box-shadow:var(--shadow-lg);text-align:center;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
}
.fab-panel.open{opacity:1;visibility:visible;transform:translateY(0);}
.fab-panel .fp-media{width:120px;height:120px;margin:0 auto 10px;}
.fab-panel .fp-media img{display:block;width:100%;height:100%;object-fit:contain;}
.fab-panel p{font-size:12.8px;line-height:1.7;color:#5a7385;}
.fab-panel strong{display:block;font-size:13.5px;color:var(--ink);margin-bottom:6px;}

/* ---------- reveal ---------- */
.reveal-init{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease;}
.reveal-in{opacity:1;transform:none;transition:opacity .7s ease,transform .7s ease;}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--line);border-radius:0 0 18px 18px;
    box-shadow:0 20px 40px rgba(15,50,90,.14);
    padding:10px 18px 18px;display:none;
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:12px 10px;font-size:15px;}
  .nav-actions .btn{display:none;}
}
@media (max-width:960px){
  .hero{padding:46px 0 32px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .about-grid{grid-template-columns:1fr;gap:32px;}
  .contact-grid{grid-template-columns:1fr;gap:28px;}
  .review-grid{grid-template-columns:1fr;gap:28px;}
  .help-grid{grid-template-columns:1fr;gap:24px;}
  .service-grid{grid-template-columns:repeat(2,1fr);}
  .solution-grid{grid-template-columns:repeat(2,1fr);}
  .case-grid{grid-template-columns:repeat(2,1fr);}
  .reviews{grid-template-columns:repeat(2,1fr);}
  .price-grid{grid-template-columns:repeat(2,1fr);}
  .flow{grid-template-columns:repeat(2,1fr);}
  .flow-step:not(:last-child)::after{display:none;}
  .network-card{grid-template-columns:1fr;gap:24px;padding:28px;}
  .join-band{flex-direction:column;align-items:flex-start;padding:30px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:34px;}
}
@media (max-width:860px){
  .stats{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:700px){
  .service-grid,.solution-grid,.case-grid,.reviews,.price-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .about-list{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .section{padding:44px 0;}
  .brand-logo{width:126px;}
  .nav-inner{min-height:62px;}
  .hero-actions .btn{flex:1 1 100%;}
  .stat strong{font-size:24px;}
  .fab{width:46px;height:46px;}
  .fab-panel{right:58px;width:200px;}
  .footer-top{flex-direction:column;gap:18px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal-init{opacity:1;transform:none;}
}