*,*::before,*::after{box-sizing:border-box;}
:root{
  --ink:#11142a;
  --ink-2:#3b4160;
  --muted:#6b7290;
  --line:rgba(17,20,42,.10);
  --c1:#00c8ff;
  --c2:#6a4cff;
  --c3:#ff3ec8;
  --radius:20px;
}
html{
  scroll-behavior:smooth;
  scroll-padding-top:88px;
  background:#f5f6fd;
}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  font-size:16px;
  line-height:1.72;
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(760px 480px at 6% -6%, rgba(0,200,255,.22), transparent 62%),
    radial-gradient(700px 460px at 98% 4%, rgba(255,62,200,.16), transparent 64%),
    radial-gradient(1000px 720px at 50% 40%, rgba(106,76,255,.12), transparent 70%),
    radial-gradient(820px 560px at 12% 96%, rgba(0,200,255,.12), transparent 66%),
    linear-gradient(180deg,#f8f9ff 0%,#f1f3fc 48%,#f8f9ff 100%);
}
.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 22px;
}
h1,h2,h3{line-height:1.32;margin:0;letter-spacing:-.01em;}
p{margin:0;}
a{color:#2a3fd0;}
/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(248,249,255,.86);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:70px;
  position:relative;
}
.brand{display:flex;align-items:center;flex:0 0 auto;text-decoration:none;}
.ai-page-logo{display:block;max-height:38px;width:auto;}
.nav{flex:1 1 auto;display:flex;justify-content:center;}
.nav-links{
  display:flex;
  align-items:center;
  gap:0;
  list-style:none;
  margin:0;
  padding:0;
}
.nav-links a{
  display:block;
  padding:9px 9px;
  font-size:14.5px;
  color:var(--ink-2);
  text-decoration:none;
  border-radius:10px;
  white-space:nowrap;
  transition:color .2s ease, background .2s ease;
}
.nav-links a:hover{color:#5b2bff;background:rgba(106,76,255,.09);}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-cta{padding:10px 18px;font-size:14px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  background:#fff;
  border-radius:12px;
  cursor:pointer;
  padding:0;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:20px;height:2px;
  background:var(--ink);
  border-radius:2px;
  transition:transform .25s ease, opacity .25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:13px 26px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  text-decoration:none;
  border:1px solid transparent;
  cursor:pointer;
  font-family:inherit;
  transition:transform .25s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease, color .25s ease;
}
.btn-primary{
  color:#fff;
  background:linear-gradient(120deg,#6a4cff,#b32ae0 55%,#ff3ec8);
  box-shadow:0 12px 28px rgba(106,76,255,.34);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 36px rgba(106,76,255,.44);}
.btn-ghost{
  color:var(--ink);
  background:#fff;
  border-color:var(--line);
  box-shadow:0 6px 16px rgba(17,20,42,.06);
}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(106,76,255,.45);color:#5b2bff;}
.btn:focus-visible,.nav-toggle:focus-visible,.float-btn:focus-visible{outline:3px solid rgba(106,76,255,.45);outline-offset:2px;}
.actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:76px 0 66px;}
.hero::before,.hero::after{
  content:"";
  position:absolute;
  border-radius:50%;
  filter:blur(60px);
  pointer-events:none;
  z-index:1;
}
.hero::before{
  width:420px;height:420px;left:-90px;top:-130px;
  background:rgba(0,200,255,.34);
  animation:drift 16s ease-in-out infinite;
}
.hero::after{
  width:460px;height:460px;right:-130px;top:-70px;
  background:rgba(255,62,200,.24);
  animation:drift 20s ease-in-out infinite reverse;
}
@keyframes drift{
  0%,100%{transform:translate3d(0,0,0);}
  50%{transform:translate3d(34px,26px,0);}
}
.hero-inner{position:relative;z-index:2;text-align:center;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  margin:0 0 18px;
  padding:6px 15px;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.06em;
  color:#5b2bff;
  background:rgba(106,76,255,.10);
  border:1px solid rgba(106,76,255,.22);
  border-radius:999px;
}
.hero h1{
  font-size:clamp(27px,4.6vw,47px);
  font-weight:800;
  letter-spacing:-.02em;
  margin:0 auto;
  max-width:900px;
  color:var(--ink);
}
.hero h1 .hl{color:#5b2bff;}
.hero-lead{
  max-width:770px;
  margin:22px auto 0;
  font-size:clamp(15px,1.6vw,17px);
  color:var(--ink-2);
}
.hero-inner .actions{justify-content:center;margin-top:32px;}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:14px;
  list-style:none;
  margin:46px 0 0;
  padding:0;
}
.hero-stats li{
  background:rgba(255,255,255,.80);
  border:1px solid var(--line);
  border-radius:16px;
  padding:18px 14px;
  text-align:center;
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
  box-shadow:0 10px 26px rgba(17,20,42,.05);
  transition:transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.hero-stats li:hover{transform:translateY(-4px);box-shadow:0 18px 34px rgba(106,76,255,.16);border-color:rgba(106,76,255,.3);}
.hero-stats strong{
  display:block;
  font-size:clamp(20px,2.4vw,26px);
  font-weight:800;
  color:#4a2bff;
  letter-spacing:-.01em;
}
.hero-stats span{display:block;font-size:13px;color:var(--muted);margin-top:4px;}
/* ---------- sections ---------- */
.section{padding:78px 0;}
.section-tint{
  background:rgba(255,255,255,.52);
  border-top:1px solid rgba(17,20,42,.06);
  border-bottom:1px solid rgba(17,20,42,.06);
}
.section-head{max-width:790px;margin:0 auto 44px;text-align:center;}
.section-head h2{font-size:clamp(23px,3.1vw,34px);font-weight:800;margin:0 0 14px;}
.section-sub{color:var(--muted);font-size:15.5px;}
.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  box-shadow:0 10px 30px rgba(17,20,42,.05);
  transition:transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.card:hover{
  transform:translateY(-4px);
  box-shadow:0 20px 42px rgba(106,76,255,.16);
  border-color:rgba(106,76,255,.28);
}
.card h3{font-size:17.5px;font-weight:700;margin:0 0 10px;}
.card p{font-size:14.5px;color:var(--ink-2);}
/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:38px;align-items:start;}
.about-copy h3{font-size:20px;margin:0 0 14px;}
.about-copy > p{font-size:15px;color:var(--ink-2);}
.check-list{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:13px;}
.check-list li{position:relative;padding-left:30px;font-size:14.5px;color:var(--ink-2);}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:8px;
  width:14px;height:14px;
  border-radius:50%;
  background:linear-gradient(135deg,var(--c1),var(--c2));
  box-shadow:0 0 0 4px rgba(106,76,255,.10);
}
.about-media{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-content:start;}
.about-media .shot:first-child{grid-column:1 / -1;}
.shot{
  margin:0;
  border-radius:16px;
  overflow:hidden;
  border:1px solid var(--line);
  background:#eef1fb;
  box-shadow:0 12px 28px rgba(17,20,42,.08);
  transition:transform .35s ease, box-shadow .35s ease;
}
.shot:hover{transform:translateY(-4px);box-shadow:0 20px 38px rgba(106,76,255,.18);}
.shot img{display:block;width:100%;}
/* ---------- services ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.svc-card{display:flex;flex-direction:column;}
.svc-ico{
  width:44px;height:44px;
  border-radius:14px;
  position:relative;
  margin-bottom:16px;
  background:linear-gradient(135deg,var(--c1),var(--c2));
  box-shadow:0 10px 22px rgba(106,76,255,.26);
  flex:0 0 auto;
}
.svc-ico::after{
  content:"";
  position:absolute;
  inset:13px;
  border-radius:6px;
  background:rgba(255,255,255,.92);
}
.svc-card:nth-child(3n+2) .svc-ico{background:linear-gradient(135deg,#6a4cff,#ff3ec8);box-shadow:0 10px 22px rgba(255,62,200,.24);}
.svc-card:nth-child(3n) .svc-ico{background:linear-gradient(135deg,#ff3ec8,#ff9a3c);box-shadow:0 10px 22px rgba(255,122,60,.24);}
/* ---------- timeline ---------- */
.timeline{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:16px;}
.timeline li{
  background:#fff;
  border:1px solid var(--line);
  border-radius:18px;
  padding:24px 20px;
  box-shadow:0 10px 26px rgba(17,20,42,.05);
  transition:transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.timeline li:hover{transform:translateY(-4px);box-shadow:0 18px 38px rgba(106,76,255,.16);border-color:rgba(106,76,255,.28);}
.tl-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border-radius:12px;
  font-size:14px;
  font-weight:800;
  color:#fff;
  background:linear-gradient(135deg,var(--c2),var(--c3));
  margin-bottom:14px;
  box-shadow:0 10px 20px rgba(106,76,255,.28);
}
.timeline h3{font-size:16px;margin:0 0 8px;}
.timeline p{font-size:14px;color:var(--ink-2);margin:0;}
/* ---------- solutions ---------- */
.solution-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.solution-card{border-left:3px solid transparent;border-image:linear-gradient(180deg,var(--c1),var(--c3)) 1;}
.solution-card .sol-tag{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  color:#5b2bff;
  background:rgba(106,76,255,.10);
  border-radius:999px;
  padding:4px 12px;
  margin-bottom:12px;
}
/* ---------- network ---------- */
.network-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;}
.network-chip{
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  padding:18px 16px;
  text-align:center;
  box-shadow:0 8px 22px rgba(17,20,42,.05);
  transition:transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.network-chip:hover{transform:translateY(-3px);box-shadow:0 16px 32px rgba(106,76,255,.15);border-color:rgba(106,76,255,.3);}
.network-chip strong{display:block;font-size:15px;color:var(--ink);}
.network-chip span{font-size:13px;color:var(--muted);}
/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;counter-reset:flow;}
.flow-item{
  position:relative;
  background:linear-gradient(180deg,#ffffff,#f8f9ff);
  border:1px solid var(--line);
  border-radius:16px;
  padding:22px 18px 20px;
  box-shadow:0 8px 22px rgba(17,20,42,.05);
  transition:transform .3s ease, box-shadow .3s ease;
}
.flow-item:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(106,76,255,.15);}
.flow-item::before{
  counter-increment:flow;
  content:counter(flow,decimal-leading-zero);
  display:block;
  font-size:13px;
  font-weight:800;
  letter-spacing:.1em;
  color:#5b2bff;
  margin-bottom:10px;
}
.flow-item h3{font-size:15.5px;margin:0 0 6px;}
.flow-item p{font-size:13.5px;color:var(--ink-2);margin:0;}
/* ---------- cases ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.case-card{overflow:hidden;padding:0;}
.case-media{
  aspect-ratio:16/10;
  background:linear-gradient(135deg,#eef1fb,#f7f3ff);
  display:flex;
  align-items:center;
  justify-content:center;
  padding:14px;
  border-bottom:1px solid var(--line);
}
.case-media img{max-width:100%;max-height:100%;width:auto;height:auto;display:block;border-radius:8px;}
.case-body{padding:22px;}
.case-body h3{font-size:17px;margin:0 0 8px;}
.case-body p{font-size:14.2px;color:var(--ink-2);margin:0 0 14px;}
.case-tag{
  display:inline-block;
  font-size:12.5px;
  font-weight:600;
  color:#a11a76;
  background:rgba(255,62,200,.12);
  border-radius:999px;
  padding:4px 12px;
}
/* ---------- compare ---------- */
.compare-grid{display:grid;grid-template-columns:1.55fr .95fr;gap:24px;align-items:start;}
.table-wrap{
  overflow-x:auto;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:0 10px 30px rgba(17,20,42,.06);
}
table{width:100%;border-collapse:collapse;min-width:700px;font-size:14.5px;}
caption{
  caption-side:top;
  text-align:left;
  padding:20px 18px 14px;
  font-size:15.5px;
  font-weight:700;
  color:var(--ink);
}
thead th{
  background:linear-gradient(180deg,#f4f5ff,#eef0fd);
  color:var(--ink);
  font-weight:700;
  text-align:left;
  padding:14px 18px;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
tbody td{
  padding:14px 18px;
  border-bottom:1px solid rgba(17,20,42,.06);
  color:var(--ink-2);
  vertical-align:top;
}
tbody tr:last-child td{border-bottom:0;}
tbody tr:hover td{background:rgba(106,76,255,.05);}
tbody td:nth-child(2){color:#3a2bd0;font-weight:600;}
.score-card{
  background:linear-gradient(160deg,#12143a,#241a63 55%,#3d1160);
  color:#fff;
  border-radius:var(--radius);
  padding:32px 28px;
  box-shadow:0 24px 50px rgba(38,20,120,.35);
}
.score-label{font-size:12.5px;letter-spacing:.14em;color:#9fb0ff;margin:0 0 12px;}
.score-num{font-size:54px;font-weight:800;line-height:1;color:#fff;}
.score-num span{font-size:17px;font-weight:600;color:#b9c4ff;margin-left:6px;}
.stars{color:#ffd35c;font-size:19px;letter-spacing:5px;margin:14px 0 22px;}
.score-list{list-style:none;padding:0;margin:0;display:grid;gap:11px;}
.score-list li{font-size:14px;color:#dfe4ff;padding-left:20px;position:relative;}
.score-list li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:8px;height:8px;
  border-radius:50%;
  background:linear-gradient(135deg,#00c8ff,#ff3ec8);
}
/* ---------- form ---------- */
.demand-form{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field-full{grid-column:1 / -1;}
.field label{font-size:13.5px;font-weight:600;color:var(--ink-2);}
.field input,.field select,.field textarea{
  width:100%;
  padding:12px 14px;
  font-size:14.5px;
  font-family:inherit;
  color:var(--ink);
  background:#fbfbff;
  border:1px solid rgba(17,20,42,.14);
  border-radius:12px;
  transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.field input::placeholder,.field textarea::placeholder{color:#9aa0b8;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:rgba(106,76,255,.6);
  background:#fff;
  box-shadow:0 0 0 4px rgba(106,76,255,.12);
}
.field textarea{resize:vertical;min-height:110px;}
.form-actions{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:16px;}
.form-note{font-size:13px;color:var(--muted);}
/* ---------- token ---------- */
.price-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.price-card{text-align:left;}
.price-card strong{display:block;font-size:17px;color:#3a2bd0;margin-bottom:8px;}
.price-card p{font-size:14px;color:var(--ink-2);margin:0;}
.model-cloud{
  margin-top:26px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px;
  box-shadow:0 10px 30px rgba(17,20,42,.05);
}
.model-cloud h3{font-size:17px;margin:0;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0;margin:18px 0 0;}
.tag-cloud li{
  padding:7px 15px;
  font-size:13.5px;
  color:var(--ink-2);
  background:#f8f9ff;
  border:1px solid var(--line);
  border-radius:999px;
  transition:color .25s ease, border-color .25s ease, box-shadow .25s ease, transform .25s ease;
}
.tag-cloud li:hover{color:#5b2bff;border-color:rgba(106,76,255,.42);box-shadow:0 8px 18px rgba(106,76,255,.15);transform:translateY(-2px);}
/* ---------- insight ---------- */
.insight-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start;}
.wiki-list{margin:16px 0 0;display:grid;gap:14px;}
.wiki-list > div{display:grid;gap:2px;}
.wiki-list dt{font-size:14.8px;font-weight:700;color:var(--ink);}
.wiki-list dd{margin:0;font-size:14px;color:var(--ink-2);}
.article-list{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:0;}
.article-list a{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:14px;
  padding:13px 2px;
  font-size:14.5px;
  color:var(--ink-2);
  text-decoration:none;
  border-bottom:1px dashed var(--line);
  transition:color .2s ease, transform .2s ease;
}
.article-list li:last-child a{border-bottom:0;}
.article-list a:hover{color:#5b2bff;transform:translateX(4px);}
.article-list a::after{content:"→";color:#8b90ab;font-size:14px;}
/* ---------- reviews ---------- */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.review-text{font-size:14.5px;color:var(--ink-2);margin:0 0 18px;}
.review-meta{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
  padding-top:14px;
  border-top:1px dashed var(--line);
}
.review-meta strong{font-size:13.8px;color:var(--ink);}
.review-meta span{
  font-size:12.5px;
  color:#5b2bff;
  background:rgba(106,76,255,.10);
  padding:4px 10px;
  border-radius:999px;
  white-space:nowrap;
}
/* ---------- faq ---------- */
.faq-list{max-width:900px;margin:0 auto;display:grid;gap:12px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:0 8px 22px rgba(17,20,42,.05);
  overflow:hidden;
  transition:border-color .25s ease, box-shadow .25s ease;
}
.faq-item[open]{border-color:rgba(106,76,255,.36);box-shadow:0 14px 32px rgba(106,76,255,.14);}
.faq-item summary{
  position:relative;
  list-style:none;
  cursor:pointer;
  padding:18px 56px 18px 22px;
  font-size:15.5px;
  font-weight:600;
  color:var(--ink);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";
  position:absolute;
  right:23px;top:50%;
  width:9px;height:9px;
  border-right:2px solid #5b2bff;
  border-bottom:2px solid #5b2bff;
  transform:translateY(-70%) rotate(45deg);
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
.faq-item summary:hover{color:#5b2bff;}
.faq-body{padding:0 22px 20px;font-size:14.6px;color:var(--ink-2);animation:fadeUp .3s ease;}
@keyframes fadeUp{
  from{opacity:0;transform:translateY(-6px);}
  to{opacity:1;transform:translateY(0);}
}
/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:24px;align-items:start;}
.contact-info h3{font-size:18px;margin:0;}
.contact-list{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:13px;}
.contact-list li{
  display:flex;
  gap:14px;
  align-items:baseline;
  font-size:14.8px;
  padding-bottom:13px;
  border-bottom:1px dashed var(--line);
}
.contact-list li:last-child{border-bottom:0;padding-bottom:0;}
.contact-list li > span:first-child{flex:0 0 92px;font-size:13.5px;color:var(--muted);}
.contact-list a{color:#2a3fd0;text-decoration:none;word-break:break-all;}
.contact-list a:hover{text-decoration:underline;}
.contact-qr{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;text-align:center;}
.contact-qr img{max-width:190px;height:auto;border-radius:14px;border:1px solid var(--line);display:block;}
.contact-qr p{font-size:13.8px;color:var(--ink-2);margin:0;}
/* ---------- join ---------- */
.join-panel{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:34px;
  align-items:center;
  padding:44px;
  border-radius:26px;
  background:
    linear-gradient(135deg,rgba(0,200,255,.14),rgba(106,76,255,.12) 46%,rgba(255,62,200,.14)),
    #ffffff;
  border:1px solid rgba(106,76,255,.22);
  box-shadow:0 22px 50px rgba(106,76,255,.16);
}
.join-copy h2{font-size:clamp(22px,2.9vw,30px);margin:0 0 14px;}
.join-copy > p{font-size:15px;color:var(--ink-2);}
.join-copy .actions{margin-top:26px;}
.join-list{list-style:none;margin:0;padding:0;display:grid;gap:14px;}
.join-list li{
  background:rgba(255,255,255,.78);
  border:1px solid rgba(106,76,255,.16);
  border-radius:14px;
  padding:15px 18px;
  font-size:14.3px;
  color:var(--ink-2);
}
.join-list li strong{display:block;font-size:14.8px;color:var(--ink);margin-bottom:2px;}
/* ---------- footer ---------- */
.site-footer{
  margin-top:0;
  padding:42px 0 26px;
  color:var(--ink-2);
  background:
    linear-gradient(90deg,#00c8ff,#6a4cff,#ff3ec8) left top / 100% 3px no-repeat,
    #ffffff;
  border-top:1px solid var(--line);
}
.footer-top{
  display:grid;
  grid-template-columns:1fr 1.4fr;
  gap:32px;
  align-items:start;
  padding-bottom:26px;
  border-bottom:1px solid var(--line);
}
.footer-brand p{font-size:14px;color:var(--ink-2);margin:14px 0 0;}
.footer-links h3{font-size:14px;color:var(--ink);margin:0 0 14px;}
.link-row{display:flex;flex-wrap:wrap;gap:10px 20px;}
.link-row a{
  font-size:14px;
  color:#2a3fd0;
  text-decoration:none;
  transition:color .2s ease;
}
.link-row a:hover{color:#5b2bff;text-decoration:underline;}
.footer-bottom{
  padding-top:20px;
  font-size:13px;
  color:#6b7290;
  text-align:center;
}
/* ---------- float dock ---------- */
.float-dock{
  position:fixed;
  right:20px;
  bottom:24px;
  z-index:90;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.float-btn{
  width:52px;height:52px;
  border-radius:16px;
  border:1px solid rgba(106,76,255,.25);
  background:#fff;
  color:#3a2bd0;
  font-size:13px;
  font-weight:600;
  font-family:inherit;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 12px 26px rgba(17,20,42,.14);
  transition:transform .25s ease, box-shadow .25s ease;
}
.float-btn:hover{transform:translateY(-3px);box-shadow:0 18px 34px rgba(106,76,255,.28);}
#backTop{opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .3s ease, transform .3s ease, visibility .3s, box-shadow .25s ease;}
#backTop.show{opacity:1;visibility:visible;transform:translateY(0);}
#backTop.show:hover{transform:translateY(-3px);}
.cs-panel{
  position:fixed;
  right:20px;
  bottom:90px;
  z-index:95;
  width:238px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:18px;
  padding:18px;
  box-shadow:0 24px 50px rgba(17,20,42,.18);
  text-align:center;
}
.cs-panel img{max-width:100%;height:auto;border-radius:12px;display:block;margin:0 auto 10px;}
.cs-panel p{font-size:13.5px;color:var(--ink-2);margin:0;}
.cs-panel p + p{margin-top:4px;}
/* ---------- reveal ---------- */
.reveal{transition:opacity .6s ease, transform .6s ease;}
.js .reveal{opacity:0;transform:translateY(22px);}
.js .reveal.in{opacity:1;transform:translateY(0);}
/* ---------- responsive ---------- */
@media (max-width:1080px){
  .nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    display:none;
    background:#fff;
    border-bottom:1px solid var(--line);
    box-shadow:0 22px 40px rgba(17,20,42,.12);
    padding:6px 0;
    max-height:calc(100vh - 70px);
    overflow-y:auto;
    justify-content:flex-start;
  }
  .nav.open{display:block;}
  .nav-links{flex-direction:column;align-items:stretch;gap:0;width:100%;}
  .nav-links a{padding:13px 22px;border-bottom:1px solid var(--line);border-radius:0;font-size:15px;}
  .nav-links li:last-child a{border-bottom:0;}
  .nav-toggle{display:inline-flex;}
  .about-grid,
  .compare-grid,
  .contact-grid,
  .insight-grid,
  .join-panel{grid-template-columns:1fr;}
  .solution-grid{grid-template-columns:repeat(2,1fr);}
  .price-grid{grid-template-columns:repeat(2,1fr);}
  .timeline{grid-template-columns:repeat(2,1fr);}
  .flow{grid-template-columns:repeat(2,1fr);}
  .footer-top{grid-template-columns:1fr;}
}
@media (max-width:900px){
  .svc-grid{grid-template-columns:repeat(2,1fr);}
  .case-grid{grid-template-columns:repeat(2,1fr);}
  .review-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:640px){
  .section{padding:54px 0;}
  .hero{padding:52px 0 46px;}
  .hero-stats{grid-template-columns:repeat(2,1fr);margin-top:34px;}
  .svc-grid,
  .case-grid,
  .review-grid,
  .solution-grid,
  .price-grid,
  .timeline,
  .flow,
  .about-media{grid-template-columns:1fr;}
  .about-media .shot:first-child{grid-column:auto;}
  .demand-form{grid-template-columns:1fr;}
  .join-panel{padding:28px 22px;}
  .card{padding:22px;}
  .contact-list li{flex-direction:column;gap:4px;}
  .contact-list li > span:first-child{flex:none;}
  .cs-panel{width:calc(100vw - 56px);max-width:260px;}
}
@media (prefers-reduced-motion: reduce){
  .js .reveal{opacity:1;transform:none;transition:none;}
  .hero::before,.hero::after{animation:none;}
  html{scroll-behavior:auto;}
}