*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:90px;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  color:#1b2033;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  background:
    radial-gradient(1100px 620px at 6% -10%, #f2ecff 0%, rgba(242,236,255,0) 62%),
    radial-gradient(900px 540px at 98% 2%, #e6fbff 0%, rgba(230,251,255,0) 60%),
    radial-gradient(900px 620px at 50% 108%, #fff0f8 0%, rgba(255,240,248,0) 64%),
    #fdfcff;
}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.4px;color:#161a2b;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{border:0;}
a{color:#5a3fd6;}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}
section[id]{scroll-margin-top:90px;}

/* ---------- 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 #ece8fa;
}
.nav-wrap{position:relative;display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:74px;}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#161a2b;flex:0 0 auto;}
.ai-page-logo{display:block;max-height:40px;width:auto;}
.brand-text{font-size:18px;font-weight:800;letter-spacing:.5px;}
.nav-links{display:flex;align-items:center;gap:0;margin:0;padding:0;list-style:none;}
.nav-links li{list-style:none;}
.nav-links a{
  display:block;padding:9px 11px;font-size:14.5px;font-weight:600;
  color:#3d4358;text-decoration:none;border-radius:10px;white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.nav-links a:hover{color:#5a3fd6;background:#f3f0ff;}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  padding:9px 16px;font-size:14px;font-weight:700;color:#3d2f8f;
  background:#fff;border:1px solid #e6e1f7;border-radius:12px;cursor:pointer;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:999px;font-weight:700;
  text-decoration:none;cursor:pointer;line-height:1.4;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#6b5bff,#9b5cff 52%,#ff5d9e);
  color:#fff;box-shadow:0 10px 24px rgba(107,91,255,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(107,91,255,.36);}
.btn-ghost{
  background:#fff;color:#442f9c;border-color:#e2dcff;
  box-shadow:0 6px 18px rgba(91,74,180,.09);
}
.btn-ghost:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(91,74,180,.16);background:#faf8ff;}
.btn-light{background:#fff;color:#4a2f9c;box-shadow:0 12px 28px rgba(40,20,110,.3);}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 18px 36px rgba(40,20,110,.36);}
.btn-lg{padding:14px 28px;font-size:16px;}
.btn-sm{padding:9px 20px;font-size:14px;}

/* ---------- section basics ---------- */
.section{padding:66px 0;}
.section-tight{padding:34px 0;}
.section-head{max-width:780px;margin:0 auto 38px;text-align:center;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:1px;
  color:#5a3fd6;background:#f0edff;padding:6px 15px;border-radius:999px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(23px,3vw,32px);margin-bottom:12px;}
.section-head p{font-size:15.5px;color:#525a70;}

/* ---------- hero ---------- */
.hero{padding:58px 0 46px;position:relative;overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:46px;align-items:center;}
.hero h1{font-size:clamp(30px,4.4vw,50px);line-height:1.16;margin:0 0 18px;letter-spacing:-1.2px;}
.hero h1 .hl{color:#6b5bff;}
.hero-sub{font-size:16.5px;color:#4b5368;max-width:560px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:24px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 20px;}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:#4b5368;font-weight:600;}
.hero-points li::before{
  content:"";width:8px;height:8px;border-radius:50%;
  background:linear-gradient(135deg,#6b5bff,#ff5d9e);flex:0 0 auto;
}
.hero-visual{position:relative;display:grid;place-items:center;min-height:340px;}
.visual-panel{
  position:relative;width:100%;max-width:360px;aspect-ratio:1/1;
  border-radius:34px;overflow:hidden;
  background:linear-gradient(150deg,#f4f0ff 0%,#eaf9ff 52%,#fff1f8 100%);
  border:1px solid #ece7ff;
  box-shadow:0 26px 60px rgba(107,91,255,.16);
}
.visual-panel::before{
  content:"";position:absolute;inset:16%;border-radius:50%;
  border:1.5px dashed rgba(107,91,255,.34);
  animation:vp-spin 26s linear infinite;
}
.visual-panel::after{
  content:"";position:absolute;inset:31%;border-radius:50%;
  border:1.5px solid rgba(255,93,158,.32);
}
.pulse-core{
  position:absolute;top:50%;left:50%;width:92px;height:92px;
  margin:-46px 0 0 -46px;border-radius:50%;
  background:linear-gradient(135deg,#6b5bff,#ff5d9e);
  box-shadow:0 0 0 12px rgba(107,91,255,.1),0 18px 42px rgba(107,91,255,.34);
  animation:vp-breathe 4.6s ease-in-out infinite;
}
.dot{position:absolute;border-radius:50%;display:block;}
.dot-a{width:16px;height:16px;background:#16c2b0;top:17%;left:21%;animation:vp-float 6.4s ease-in-out infinite;}
.dot-b{width:12px;height:12px;background:#ff9f43;bottom:21%;right:19%;animation:vp-float 7.6s ease-in-out infinite .8s;}
.dot-c{width:20px;height:20px;background:#ffd166;top:25%;right:15%;animation:vp-float 8.4s ease-in-out infinite .4s;}
@keyframes vp-spin{to{transform:rotate(360deg);}}
@keyframes vp-breathe{0%,100%{transform:scale(1);}50%{transform:scale(1.08);}}
@keyframes vp-float{0%,100%{transform:translateY(0);}50%{transform:translateY(-14px);}}

/* ---------- stats ---------- */
.stats{padding:6px 0 0;}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;
  background:#fff;border:1px solid #ece8fa;border-radius:24px;
  padding:28px 22px;box-shadow:0 14px 34px rgba(91,74,180,.08);
}
.stat{text-align:center;}
.stat strong{display:block;font-size:clamp(21px,2.6vw,30px);color:#6b5bff;letter-spacing:-.6px;}
.stat span{display:block;margin-top:6px;font-size:13.5px;color:#767e94;}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:34px;align-items:start;}
.about-text{background:#fff;border:1px solid #ece8fa;border-radius:22px;padding:28px;box-shadow:0 14px 34px rgba(91,74,180,.07);}
.about-text p{font-size:15px;color:#4b5368;margin-bottom:14px;}
.about-text p:last-child{margin-bottom:0;}
.about-features{display:grid;gap:12px;}
.about-features li{
  display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start;
  background:#fff;border:1px solid #ece8fa;border-radius:16px;padding:16px 18px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.about-features li:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(91,74,180,.12);border-color:#ddd5ff;}
.af-dot{width:34px;height:34px;border-radius:11px;display:block;flex:0 0 auto;background:linear-gradient(135deg,#6b5bff,#9b5cff);}
.about-features li:nth-child(2) .af-dot{background:linear-gradient(135deg,#ff5d9e,#ff9ab8);}
.about-features li:nth-child(3) .af-dot{background:linear-gradient(135deg,#16c2b0,#63e3d2);}
.about-features li:nth-child(4) .af-dot{background:linear-gradient(135deg,#ff9f43,#ffc670);}
.about-features li:nth-child(5) .af-dot{background:linear-gradient(135deg,#4a7dff,#7fb2ff);}
.about-features li:nth-child(6) .af-dot{background:linear-gradient(135deg,#b45cff,#e0a5ff);}
.about-features li:nth-child(7) .af-dot{background:linear-gradient(135deg,#ffd166,#ffe6a3);}
.af-body strong{display:block;font-size:15px;color:#1b2033;margin-bottom:2px;}
.af-body span{font-size:13.5px;color:#6b7285;}

/* ---------- service grid ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(232px,1fr));gap:16px;}
.svc-card{
  background:#fff;border:1px solid #ece8fa;border-radius:18px;padding:22px 20px;
  box-shadow:0 8px 22px rgba(91,74,180,.06);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.svc-card:hover{transform:translateY(-5px);box-shadow:0 18px 38px rgba(91,74,180,.15);border-color:#dcd4ff;}
.svc-icon{width:40px;height:40px;border-radius:13px;display:grid;place-items:center;margin-bottom:14px;background:linear-gradient(135deg,#6b5bff,#9d7dff);}
.svc-icon::after{content:"";width:13px;height:13px;border-radius:50%;background:#fff;opacity:.94;}
.svc-card:nth-child(4n+2) .svc-icon{background:linear-gradient(135deg,#ff5d9e,#ff93b8);}
.svc-card:nth-child(4n+3) .svc-icon{background:linear-gradient(135deg,#16c2b0,#5fe0cf);}
.svc-card:nth-child(4n+4) .svc-icon{background:linear-gradient(135deg,#ff9f43,#ffc46b);}
.svc-card h3{font-size:16px;margin-bottom:8px;}
.svc-card p{font-size:13.6px;color:#626a80;line-height:1.72;}

/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:repeat(auto-fit,minmax(196px,1fr));gap:16px;}
.flow-step{
  position:relative;background:#fff;border:1px solid #ece8fa;border-radius:18px;
  padding:24px 20px;box-shadow:0 8px 22px rgba(91,74,180,.06);
  transition:transform .22s ease,box-shadow .22s ease;
}
.flow-step:hover{transform:translateY(-4px);box-shadow:0 16px 34px rgba(91,74,180,.13);}
.flow-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;margin-bottom:12px;
  font-size:14px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,#6b5bff,#ff5d9e);
}
.flow-step h3{font-size:15.5px;margin-bottom:8px;}
.flow-step p{font-size:13.5px;color:#626a80;}
.cloud-wrap{margin-top:34px;background:#fff;border:1px solid #ece8fa;border-radius:22px;padding:26px;box-shadow:0 12px 30px rgba(91,74,180,.07);}
.cloud-title{font-size:15px;font-weight:800;margin-bottom:14px;color:#1b2033;}
.cloud-title span{color:#8a90a3;font-weight:600;font-size:13px;margin-left:8px;}
.cloud{display:flex;flex-wrap:wrap;gap:9px;}
.cloud span{
  font-size:13px;font-weight:600;color:#4b3f92;background:#f5f2ff;
  border:1px solid #e7e1ff;border-radius:999px;padding:6px 14px;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.cloud span:hover{background:linear-gradient(135deg,#6b5bff,#ff5d9e);color:#fff;border-color:transparent;transform:translateY(-2px);}
.cloud span:nth-child(3n+2){color:#8b3d68;background:#fff2f8;border-color:#ffdcec;}
.cloud span:nth-child(3n+3){color:#1b7a72;background:#eefbf9;border-color:#cdf1ec;}

/* ---------- industries ---------- */
.ind-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(268px,1fr));gap:16px;}
.ind-card{
  background:linear-gradient(160deg,#ffffff,#fbfaff);
  border:1px solid #ece8fa;border-radius:18px;padding:24px 22px;
  box-shadow:0 8px 22px rgba(91,74,180,.06);
  transition:transform .22s ease,box-shadow .22s ease;
}
.ind-card:hover{transform:translateY(-4px);box-shadow:0 18px 36px rgba(91,74,180,.13);}
.ind-card h3{font-size:16px;margin-bottom:10px;}
.ind-card p{font-size:13.8px;color:#626a80;}
.ind-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.ind-tags span{font-size:12px;color:#6b5bff;background:#f2efff;border-radius:999px;padding:4px 11px;font-weight:600;}

/* ---------- network ---------- */
.net-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:26px;align-items:start;}
.net-intro{background:#fff;border:1px solid #ece8fa;border-radius:22px;padding:28px;box-shadow:0 12px 30px rgba(91,74,180,.07);}
.net-intro h3{font-size:18px;margin-bottom:12px;}
.net-intro p{font-size:14.5px;color:#4b5368;margin-bottom:12px;}
.net-intro p:last-child{margin-bottom:0;}
.net-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px;}
.net-card{background:#fff;border:1px solid #ece8fa;border-radius:16px;padding:20px;box-shadow:0 8px 20px rgba(91,74,180,.05);}
.net-card h4{font-size:15px;margin-bottom:8px;}
.net-card p{font-size:13.4px;color:#626a80;}

/* ---------- timeline ---------- */
.timeline{display:grid;gap:14px;}
.tl-item{
  display:grid;grid-template-columns:56px 1fr;gap:18px;align-items:start;
  background:#fff;border:1px solid #ece8fa;border-radius:18px;padding:20px 22px;
  box-shadow:0 8px 20px rgba(91,74,180,.05);
  transition:transform .2s ease,box-shadow .2s ease;
}
.tl-item:hover{transform:translateX(4px);box-shadow:0 14px 30px rgba(91,74,180,.12);}
.tl-num{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  font-weight:800;font-size:15px;color:#fff;
  background:linear-gradient(135deg,#6b5bff,#9b5cff);
}
.tl-item:nth-child(2) .tl-num{background:linear-gradient(135deg,#ff5d9e,#ff93b8);}
.tl-item:nth-child(3) .tl-num{background:linear-gradient(135deg,#16c2b0,#5fe0cf);}
.tl-item:nth-child(4) .tl-num{background:linear-gradient(135deg,#ff9f43,#ffc46b);}
.tl-item:nth-child(5) .tl-num{background:linear-gradient(135deg,#4a7dff,#7fb2ff);}
.tl-item:nth-child(6) .tl-num{background:linear-gradient(135deg,#b45cff,#dda2ff);}
.tl-body h3{font-size:16px;margin-bottom:6px;}
.tl-body p{font-size:14px;color:#626a80;}

/* ---------- cases ---------- */
.case-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(258px,1fr));gap:18px;}
.case-card{
  margin:0;background:#fff;border:1px solid #ece8fa;border-radius:20px;overflow:hidden;
  box-shadow:0 10px 26px rgba(91,74,180,.07);
  transition:transform .22s ease,box-shadow .22s ease;
}
.case-card:hover{transform:translateY(-5px);box-shadow:0 20px 42px rgba(91,74,180,.16);}
.case-media{aspect-ratio:4/3;background:#f7f5ff;display:grid;place-items:center;overflow:hidden;}
.case-media img{width:100%;height:100%;object-fit:contain;display:block;}
.case-card figcaption{padding:18px 20px 22px;}
.case-card h3{font-size:15.5px;margin-bottom:8px;}
.case-card p{font-size:13.6px;color:#626a80;}

/* ---------- compare ---------- */
.compare-head{display:flex;flex-wrap:wrap;gap:18px;align-items:stretch;margin-bottom:22px;}
.score-card{
  flex:0 0 250px;background:linear-gradient(155deg,#6b5bff,#9b5cff 48%,#ff5d9e);
  border-radius:22px;padding:26px 24px;color:#fff;
  box-shadow:0 18px 40px rgba(107,91,255,.3);
  animation:score-glow 5s ease-in-out infinite;
}
@keyframes score-glow{0%,100%{box-shadow:0 18px 40px rgba(107,91,255,.3);}50%{box-shadow:0 22px 52px rgba(255,93,158,.34);}}
.score-stars{font-size:17px;letter-spacing:3px;color:#ffe08a;margin-bottom:8px;}
.score-num{font-size:44px;font-weight:800;line-height:1;letter-spacing:-1.5px;}
.score-num span{font-size:16px;font-weight:600;opacity:.82;margin-left:4px;}
.score-card p{margin-top:10px;font-size:13.5px;color:rgba(255,255,255,.92);}
.compare-note{
  flex:1 1 320px;background:#fff;border:1px solid #ece8fa;border-radius:22px;
  padding:26px 26px;box-shadow:0 12px 30px rgba(91,74,180,.07);
}
.compare-note h3{font-size:17px;margin-bottom:10px;}
.compare-note p{font-size:14px;color:#4b5368;margin-bottom:10px;}
.compare-note p:last-child{margin-bottom:0;}
.table-scroll{
  overflow-x:auto;-webkit-overflow-scrolling:touch;
  border:1px solid #ece8fa;border-radius:20px;background:#fff;
  box-shadow:0 12px 30px rgba(91,74,180,.07);
}
table{width:100%;border-collapse:collapse;min-width:760px;font-size:14.2px;}
thead th{
  background:linear-gradient(135deg,#f4f1ff,#eef8ff);
  color:#2a2457;text-align:left;padding:16px 18px;font-weight:800;white-space:nowrap;
}
tbody td{padding:14px 18px;border-top:1px solid #f2effb;color:#525a70;vertical-align:middle;}
tbody td:first-child{font-weight:700;color:#1b2033;white-space:nowrap;}
tbody tr:hover{background:#fbfaff;}
.hl-col{color:#5a3fd6;font-weight:800;background:#fbf9ff;}

/* ---------- token ---------- */
.token-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;}
.token-card{
  background:#fff;border:1px solid #ece8fa;border-radius:20px;padding:26px 24px;
  box-shadow:0 10px 26px rgba(91,74,180,.07);
  transition:transform .22s ease,box-shadow .22s ease;
}
.token-card:hover{transform:translateY(-4px);box-shadow:0 18px 38px rgba(91,74,180,.14);}
.token-card .tag{
  display:inline-block;font-size:12.5px;font-weight:800;color:#5a3fd6;
  background:#f1eeff;border-radius:999px;padding:4px 12px;margin-bottom:12px;
}
.token-card h3{font-size:16.5px;margin-bottom:10px;}
.token-card p{font-size:13.8px;color:#626a80;}
.token-note{margin-top:18px;font-size:13.5px;color:#767e94;text-align:center;}

/* ---------- reviews ---------- */
.review-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px;}
.review-card{
  display:flex;flex-direction:column;gap:16px;justify-content:space-between;
  background:#fff;border:1px solid #ece8fa;border-radius:20px;padding:24px 22px;
  box-shadow:0 10px 26px rgba(91,74,180,.06);
  transition:transform .22s ease,box-shadow .22s ease;
}
.review-card:hover{transform:translateY(-4px);box-shadow:0 18px 38px rgba(91,74,180,.13);}
.review-card p{font-size:14.2px;color:#3f475c;line-height:1.8;}
.review-user{display:flex;align-items:center;gap:12px;}
.avatar{
  width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  font-weight:800;font-size:15px;color:#fff;flex:0 0 auto;
  background:linear-gradient(135deg,#6b5bff,#9b5cff);
}
.review-card:nth-child(2) .avatar{background:linear-gradient(135deg,#ff5d9e,#ff9ab8);}
.review-card:nth-child(3) .avatar{background:linear-gradient(135deg,#16c2b0,#63e3d2);}
.review-card:nth-child(4) .avatar{background:linear-gradient(135deg,#ff9f43,#ffc670);}
.review-card:nth-child(5) .avatar{background:linear-gradient(135deg,#4a7dff,#7fb2ff);}
.review-card:nth-child(6) .avatar{background:linear-gradient(135deg,#b45cff,#dda2ff);}
.review-user strong{display:block;font-size:14.5px;color:#1b2033;}
.review-user span{display:block;font-size:12.8px;color:#8a90a3;}

/* ---------- knowledge ---------- */
.know-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:22px;align-items:start;}
.know-col{display:grid;gap:14px;}
.know-title{font-size:16px;margin-bottom:2px;}
.article-card{
  display:block;text-decoration:none;color:inherit;
  background:#fff;border:1px solid #ece8fa;border-radius:16px;padding:18px 20px;
  box-shadow:0 8px 20px rgba(91,74,180,.05);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.article-card:hover{transform:translateY(-3px);box-shadow:0 16px 32px rgba(91,74,180,.13);border-color:#dcd4ff;}
.article-tag{
  display:inline-block;font-size:12px;font-weight:700;color:#8b3d68;
  background:#fff2f8;border-radius:999px;padding:3px 11px;margin-bottom:9px;
}
.article-card h4{font-size:15px;margin-bottom:6px;color:#1b2033;}
.article-card p{font-size:13.4px;color:#6b7285;}
.link-box{background:#fff;border:1px solid #ece8fa;border-radius:18px;padding:22px;box-shadow:0 8px 20px rgba(91,74,180,.05);}
.link-box h3{font-size:15.5px;margin-bottom:12px;}
.link-list{display:grid;gap:2px;}
.link-list a{
  display:block;font-size:13.8px;color:#4b5368;text-decoration:none;
  padding:8px 10px;border-radius:10px;transition:background .18s ease,color .18s ease;
}
.link-list a:hover{background:#f5f2ff;color:#5a3fd6;}

/* ---------- cta band ---------- */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  background:linear-gradient(120deg,#4a2fd0,#7a4bff 46%,#ff5d9e);
  border-radius:26px;padding:38px 36px;
  box-shadow:0 22px 50px rgba(96,64,220,.28);
}
.cta-band h2{color:#fff;font-size:clamp(21px,2.6vw,28px);margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.92);font-size:14.5px;max-width:620px;}
.eyebrow-light{color:#fff;background:rgba(255,255,255,.2);}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:22px;align-items:start;}
.contact-card{background:#fff;border:1px solid #ece8fa;border-radius:22px;padding:28px;box-shadow:0 12px 30px rgba(91,74,180,.07);}
.contact-card h3{font-size:17px;margin-bottom:16px;}
.contact-list{display:grid;gap:13px;}
.contact-list li{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:#4b5368;}
.contact-key{flex:0 0 auto;font-weight:800;color:#5a3fd6;min-width:76px;}
.qr-wrap{margin-top:18px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.qr{
  width:104px;height:104px;object-fit:contain;border-radius:14px;
  border:1px solid #ece8fa;background:#faf9ff;padding:6px;display:block;
}
.qr-text{font-size:13px;color:#767e94;line-height:1.7;}
.demand-form{background:#fff;border:1px solid #ece8fa;border-radius:22px;padding:28px;box-shadow:0 12px 30px rgba(91,74,180,.07);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:grid;gap:7px;margin-bottom:16px;}
.field label{font-size:13.5px;font-weight:700;color:#2b3145;}
.field input,.field select,.field textarea{
  width:100%;font-family:inherit;font-size:14px;color:#1b2033;
  background:#fbfaff;border:1px solid #e6e2f7;border-radius:12px;
  padding:12px 14px;outline:none;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field textarea{min-height:118px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:#a48dff;background:#fff;box-shadow:0 0 0 4px rgba(107,91,255,.12);
}
.form-tip{font-size:12.6px;color:#8a90a3;margin-top:12px;}
.form-submit{width:100%;margin-top:4px;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:920px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid #ece8fa;border-radius:16px;overflow:hidden;box-shadow:0 8px 20px rgba(91,74,180,.05);transition:border-color .2s ease,box-shadow .2s ease;}
.faq-item.open{border-color:#d5ccff;box-shadow:0 14px 30px rgba(91,74,180,.12);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  padding:18px 22px;font-family:inherit;font-size:15px;font-weight:700;color:#1b2033;
}
.faq-ico{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  display:grid;place-items:center;font-size:16px;font-weight:800;line-height:1;
  color:#5a3fd6;background:#f2efff;transition:transform .24s ease,background .24s ease,color .24s ease;
}
.faq-item.open .faq-ico{transform:rotate(45deg);background:linear-gradient(135deg,#6b5bff,#ff5d9e);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 22px 20px;font-size:14px;color:#525a70;line-height:1.82;}

/* ---------- friend links ---------- */
.links-box{background:#fff;border:1px solid #ece8fa;border-radius:20px;padding:24px 26px;box-shadow:0 10px 24px rgba(91,74,180,.06);}
.links-title{font-size:15.5px;margin-bottom:14px;}
.links-list{display:flex;flex-wrap:wrap;gap:10px;}
.links-list a{
  font-size:13.4px;font-weight:600;color:#4b5368;text-decoration:none;
  background:#f7f5ff;border:1px solid #ece8fa;border-radius:999px;padding:7px 16px;
  transition:background .18s ease,color .18s ease,transform .18s ease,border-color .18s ease;
}
.links-list a:hover{background:linear-gradient(135deg,#6b5bff,#ff5d9e);color:#fff;border-color:transparent;transform:translateY(-2px);}

/* ---------- footer ---------- */
.site-footer{
  margin-top:10px;background:#f7f5ff;border-top:1px solid #e9e4fb;
  padding:40px 0 22px;color:#3d4358;
}
.footer-top{display:grid;grid-template-columns:1.2fr 1fr;gap:30px;align-items:start;}
.footer-brand .brand-text{display:block;font-size:18px;font-weight:800;color:#1b2033;margin-bottom:10px;}
.footer-brand p{font-size:13.6px;color:#5b6278;max-width:420px;margin-bottom:12px;}
.footer-brand .ai-page-home-link{
  display:inline-block;font-size:13.5px;font-weight:700;color:#5a3fd6;
  text-decoration:none;border-bottom:1px solid rgba(90,63,214,.35);padding-bottom:1px;
}
.footer-cols{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.footer-cols h3{font-size:14px;margin-bottom:12px;color:#1b2033;}
.footer-cols li{font-size:13.4px;color:#5b6278;margin-bottom:7px;}
.footer-cols a{color:#5b6278;text-decoration:none;transition:color .18s ease;}
.footer-cols a:hover{color:#5a3fd6;}
.footer-bottom{
  margin-top:26px;padding-top:18px;border-top:1px solid #e4def8;
  font-size:13px;color:#6b7285;text-align:center;
}

/* ---------- floating ---------- */
.float-bar{position:fixed;right:18px;bottom:22px;z-index:120;display:grid;gap:10px;justify-items:end;}
.float-btn{
  width:48px;height:48px;border-radius:16px;border:1px solid #e6e1f7;background:#fff;
  display:grid;place-items:center;cursor:pointer;color:#5a3fd6;font-size:13px;font-weight:800;
  box-shadow:0 10px 24px rgba(91,74,180,.16);
  transition:transform .18s ease,box-shadow .18s ease,opacity .18s ease;
}
.float-btn:hover{transform:translateY(-3px);box-shadow:0 16px 32px rgba(91,74,180,.24);}
#toTop{opacity:0;pointer-events:none;}
#toTop.show{opacity:1;pointer-events:auto;}
.cs-pop{
  display:none;background:#fff;border:1px solid #e6e1f7;border-radius:18px;
  padding:14px;box-shadow:0 18px 40px rgba(91,74,180,.2);text-align:center;
}
.cs-pop.show{display:block;}
.cs-pop img{width:140px;height:140px;object-fit:contain;border-radius:12px;display:block;margin:0 auto 8px;background:#faf9ff;}
.cs-pop span{font-size:12.5px;color:#6b7285;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .62s ease,transform .62s ease;}
.reveal.is-visible{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1040px){
  .nav-toggle{display:inline-flex;}
  .nav-links{
    display:none;position:absolute;top:calc(100% + 1px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;background:#fff;
    border:1px solid #ece8fa;border-top:none;border-radius:0 0 18px 18px;
    padding:10px 14px 16px;box-shadow:0 24px 40px rgba(60,50,120,.14);
    max-height:70vh;overflow-y:auto;
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:12px;border-radius:10px;}
}
@media (max-width:940px){
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero{padding:40px 0 34px;}
  .hero-visual{min-height:260px;}
  .visual-panel{max-width:280px;}
  .about-grid{grid-template-columns:1fr;gap:20px;}
  .net-grid{grid-template-columns:1fr;gap:20px;}
  .contact-grid{grid-template-columns:1fr;gap:20px;}
  .know-grid{grid-template-columns:1fr;gap:20px;}
  .footer-top{grid-template-columns:1fr;gap:26px;}
}
@media (max-width:760px){
  .section{padding:48px 0;}
  .stats-grid{grid-template-columns:1fr 1fr;padding:22px 16px;gap:18px;}
  .form-row{grid-template-columns:1fr;}
  .cta-band{padding:28px 22px;}
  .footer-cols{grid-template-columns:1fr 1fr;}
  .score-card{flex:1 1 100%;}
}
@media (max-width:520px){
  .hero h1{font-size:28px;letter-spacing:-.6px;}
  .hero-actions .btn{width:100%;}
  .brand-text{font-size:16px;}
  .footer-cols{grid-template-columns:1fr;gap:18px;}
  .tl-item{grid-template-columns:44px 1fr;gap:14px;padding:18px;}
  .tl-num{width:38px;height:38px;border-radius:12px;font-size:13.5px;}
  .float-bar{right:12px;bottom:16px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
}