:root{
  --ink:#0b0f2a;
  --ink2:#131a3d;
  --paper:#ffffff;
  --soft:#f4f6fb;
  --line:#e2e7f2;
  --pink:#ff2d78;
  --pink2:#ff5c9d;
  --cyan:#00d5ff;
  --lime:#c6ff3d;
  --orange:#ff7a1a;
  --purple:#7a3cff;
  --text:#1a2140;
  --muted:#5b6480;
  --radius:18px;
  --shadow:0 10px 30px rgba(11,15,42,.08);
  --shadow-lg:0 22px 60px rgba(11,15,42,.16);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  color:var(--text);background:var(--paper);line-height:1.7;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
section{position:relative}
.sec{padding:88px 0}
.sec-soft{background:var(--soft)}
.sec-ink{background:var(--ink);color:#fff}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:rgba(11,15,42,.92);
  backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand .ai-page-logo{height:38px;width:auto;max-width:150px;object-fit:contain}
.brand-text{color:#fff;font-weight:800;font-size:17px;letter-spacing:.5px;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--lime)}
.nav{display:flex;align-items:center;gap:18px}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:nowrap}
.nav-links a{
  color:rgba(255,255,255,.82);font-size:14px;padding:8px 12px;border-radius:8px;
  transition:color .2s,background .2s;white-space:nowrap;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.1)}
.nav-cta{
  background:linear-gradient(135deg,var(--pink),var(--purple));color:#fff!important;
  padding:10px 18px;border-radius:30px;font-weight:700;font-size:14px;
  box-shadow:0 6px 18px rgba(255,45,120,.4);transition:transform .2s,box-shadow .2s;
  white-space:nowrap;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(255,45,120,.55)}
.burger{
  display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;
  border:none;background:rgba(255,255,255,.1);border-radius:10px;cursor:pointer;padding:0 11px;
}
.burger span{display:block;height:2px;background:#fff;border-radius:2px;transition:transform .3s,opacity .3s}
.burger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.active span:nth-child(2){opacity:0}
.burger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media (max-width:1080px){
  .nav-links a{padding:8px 8px;font-size:13px}
}
@media (max-width:960px){
  .burger{display:flex}
  .nav{
    position:fixed;top:72px;left:0;right:0;background:var(--ink2);
    flex-direction:column;align-items:stretch;padding:12px 18px 22px;gap:8px;
    transform:translateY(-130%);transition:transform .35s ease;box-shadow:0 20px 40px rgba(0,0,0,.4);
    max-height:calc(100vh - 72px);overflow-y:auto;
  }
  .nav.open{transform:translateY(0)}
  .nav-links{flex-direction:column;align-items:stretch;width:100%}
  .nav-links a{padding:12px 14px;font-size:15px;border-radius:10px}
  .nav-cta{text-align:center;margin-top:6px}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:32px;font-weight:700;font-size:15px;cursor:pointer;
  border:none;transition:transform .2s,box-shadow .2s,background .2s;line-height:1.2;
}
.btn-primary{background:linear-gradient(135deg,var(--pink),var(--orange));color:#fff;box-shadow:0 10px 26px rgba(255,45,120,.42)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 36px rgba(255,45,120,.55)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1.5px solid rgba(255,255,255,.35)}
.btn-ghost:hover{background:rgba(255,255,255,.16);transform:translateY(-3px)}
.btn-lime{background:var(--lime);color:var(--ink);box-shadow:0 10px 26px rgba(198,255,61,.35)}
.btn-lime:hover{transform:translateY(-3px);box-shadow:0 16px 36px rgba(198,255,61,.5)}
.btn:active{transform:translateY(0) scale(.98)}

/* ---------- Hero ---------- */
.hero{
  background:
    radial-gradient(circle at 12% 18%,rgba(255,45,120,.28),transparent 42%),
    radial-gradient(circle at 88% 16%,rgba(0,213,255,.26),transparent 44%),
    radial-gradient(circle at 70% 92%,rgba(122,60,255,.3),transparent 46%),
    linear-gradient(160deg,#0b0f2a 0%,#141a45 50%,#0b0f2a 100%);
  color:#fff;padding:96px 0 90px;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:56px 56px;pointer-events:none;
  mask-image:radial-gradient(circle at 50% 40%,#000 0%,transparent 78%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:30px;
  background:rgba(198,255,61,.12);border:1px solid rgba(198,255,61,.45);
  color:var(--lime);font-size:13px;font-weight:700;letter-spacing:.5px;margin-bottom:22px;
}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 0 rgba(198,255,61,.6);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(198,255,61,.55)}70%{box-shadow:0 0 0 12px rgba(198,255,61,0)}100%{box-shadow:0 0 0 0 rgba(198,255,61,0)}}
.hero h1{font-size:46px;line-height:1.2;font-weight:900;letter-spacing:.5px;margin-bottom:22px}
.hero h1 .hl{background:linear-gradient(120deg,var(--lime),var(--cyan) 55%,var(--pink2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17px;color:rgba(255,255,255,.82);max-width:600px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px}
.hero-tags span{
  font-size:13px;color:rgba(255,255,255,.9);padding:6px 13px;border-radius:20px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
}
.hero-side{display:flex;flex-direction:column;gap:16px}
.hero-metric{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:16px;padding:20px 22px;backdrop-filter:blur(6px);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  transition:transform .25s,border-color .25s,background .25s;
}
.hero-metric:hover{transform:translateX(6px);border-color:rgba(198,255,61,.5);background:rgba(255,255,255,.1)}
.hero-metric .num{font-size:28px;font-weight:900;color:var(--lime);line-height:1.1}
.hero-metric .lbl{font-size:13px;color:rgba(255,255,255,.72);margin-top:2px}
.hero-metric .ic{
  width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:20px;background:linear-gradient(135deg,rgba(255,45,120,.3),rgba(0,213,255,.3));
  flex-shrink:0;
}
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:34px}
  .hero{padding:64px 0}
}
@media (max-width:520px){
  .hero h1{font-size:27px}
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
}

/* ---------- Section headings ---------- */
.sec-head{max-width:760px;margin:0 auto 52px;text-align:center}
.sec-tag{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:2px;
  color:var(--pink);text-transform:uppercase;margin-bottom:12px;
  padding:5px 14px;border-radius:20px;background:rgba(255,45,120,.08);
}
.sec-ink .sec-tag{color:var(--lime);background:rgba(198,255,61,.12)}
.sec-head h2{font-size:34px;font-weight:900;line-height:1.28;color:var(--ink);margin-bottom:14px;letter-spacing:.4px}
.sec-ink .sec-head h2{color:#fff}
.sec-head p{color:var(--muted);font-size:16px}
.sec-ink .sec-head p{color:rgba(255,255,255,.72)}
@media (max-width:640px){.sec-head h2{font-size:25px}.sec{padding:64px 0}}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:translateY(0)}

/* ---------- About / platform intro ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.about-text h2{font-size:32px;font-weight:900;color:var(--ink);margin-bottom:18px;line-height:1.3}
.about-text p{color:var(--muted);margin-bottom:16px;font-size:15.5px}
.about-points{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:24px}
.about-points li{
  display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--text);font-weight:600;
  background:var(--soft);padding:12px 14px;border-radius:12px;
}
.about-points li::before{content:"";width:18px;height:18px;flex-shrink:0;border-radius:50%;margin-top:3px;
  background:linear-gradient(135deg,var(--pink),var(--orange));
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23000' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/14px no-repeat;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23000' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/14px no-repeat}
.about-media{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.about-media .card-img{
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
  border:1px solid var(--line);transition:transform .3s,box-shadow .3s;background:#fff;
}
.about-media .card-img:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.about-media .card-img img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.about-media .card-img.wide{grid-column:span 2}
.about-media .card-img.wide img{aspect-ratio:21/9}
@media (max-width:900px){
  .about-grid{grid-template-columns:1fr;gap:36px}
  .about-points{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){.about-points{grid-template-columns:1fr}}

/* ---------- Data metrics ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-card{
  background:linear-gradient(160deg,#fff,#f6f8ff);border:1px solid var(--line);
  border-radius:var(--radius);padding:30px 24px;text-align:center;box-shadow:var(--shadow);
  transition:transform .3s,box-shadow .3s,border-color .3s;position:relative;overflow:hidden;
}
.stat-card::after{content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--pink),var(--orange),var(--cyan))}
.stat-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:rgba(255,45,120,.3)}
.stat-card .v{font-size:38px;font-weight:900;line-height:1.1;
  background:linear-gradient(120deg,var(--pink),var(--purple));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-card .t{font-size:14px;color:var(--muted);margin-top:8px;font-weight:600}
@media (max-width:860px){.stats{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.stats{grid-template-columns:1fr}}

/* ---------- Service cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.srv-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;
  box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s,border-color .3s;position:relative;
}
.srv-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:rgba(255,45,120,.35)}
.srv-ic{
  width:54px;height:54px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-size:24px;color:#fff;margin-bottom:18px;font-weight:800;
  background:linear-gradient(135deg,var(--pink),var(--purple));box-shadow:0 8px 20px rgba(255,45,120,.3);
}
.srv-card:nth-child(3n+2) .srv-ic{background:linear-gradient(135deg,var(--cyan),#0089ff);box-shadow:0 8px 20px rgba(0,213,255,.3)}
.srv-card:nth-child(3n+3) .srv-ic{background:linear-gradient(135deg,var(--orange),#ffb01a);box-shadow:0 8px 20px rgba(255,122,26,.3)}
.srv-card h3{font-size:18px;font-weight:800;color:var(--ink);margin-bottom:10px}
.srv-card p{font-size:14px;color:var(--muted);line-height:1.75}
@media (max-width:900px){.cards{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.cards{grid-template-columns:1fr}}

/* ---------- One-stop / step flow ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:st}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 22px;
  box-shadow:var(--shadow);position:relative;transition:transform .3s,box-shadow .3s;
}
.step:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.step .no{
  display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;
  border-radius:12px;font-weight:900;font-size:18px;color:var(--ink);
  background:var(--lime);margin-bottom:16px;
}
.step h3{font-size:17px;font-weight:800;color:var(--ink);margin-bottom:8px}
.step p{font-size:14px;color:var(--muted)}
@media (max-width:860px){.steps{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.steps{grid-template-columns:1fr}}

/* ---------- Industry solutions ---------- */
.solu-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.solu{
  border-radius:var(--radius);padding:30px 24px;color:#fff;position:relative;overflow:hidden;
  min-height:180px;display:flex;flex-direction:column;justify-content:flex-end;
  transition:transform .3s,box-shadow .3s;
}
.solu:hover{transform:translateY(-8px) scale(1.01);box-shadow:var(--shadow-lg)}
.solu::before{content:"";position:absolute;inset:0;opacity:.9;z-index:-1}
.solu.a{background:linear-gradient(135deg,#ff2d78,#7a3cff)}
.solu.b{background:linear-gradient(135deg,#00d5ff,#0089ff)}
.solu.c{background:linear-gradient(135deg,#ff7a1a,#ff2d78)}
.solu.d{background:linear-gradient(135deg,#7a3cff,#00d5ff)}
.solu.e{background:linear-gradient(135deg,#c6ff3d,#00b3a4);color:var(--ink)}
.solu.f{background:linear-gradient(135deg,#ff5c9d,#ff7a1a)}
.solu h3{font-size:19px;font-weight:800;margin-bottom:8px}
.solu p{font-size:14px;opacity:.92;line-height:1.65}
@media (max-width:900px){.solu-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.solu-grid{grid-template-columns:1fr}}

/* ---------- Network ---------- */
.net-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.net-map{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.net-item{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:14px;
  padding:18px 16px;transition:background .25s,border-color .25s,transform .25s;
}
.net-item:hover{background:rgba(198,255,61,.1);border-color:rgba(198,255,61,.5);transform:translateY(-4px)}
.net-item .city{font-size:16px;font-weight:800;color:#fff;margin-bottom:4px}
.net-item .desc{font-size:12.5px;color:rgba(255,255,255,.65)}
.net-text h2{font-size:32px;font-weight:900;color:#fff;margin-bottom:16px;line-height:1.3}
.net-text p{color:rgba(255,255,255,.75);font-size:15px;margin-bottom:16px}
@media (max-width:860px){.net-grid{grid-template-columns:1fr;gap:32px}.net-map{grid-template-columns:1fr 1fr}}

/* ---------- Compare table ---------- */
.compare-wrap{overflow-x:auto;border-radius:var(--radius);box-shadow:var(--shadow-lg);border:1px solid var(--line);background:#fff}
table.compare{width:100%;border-collapse:collapse;min-width:720px}
table.compare th,table.compare td{padding:16px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line)}
table.compare thead th{background:var(--ink);color:#fff;font-weight:800;font-size:15px}
table.compare thead th.hi{background:linear-gradient(135deg,var(--pink),var(--purple))}
table.compare tbody tr:nth-child(even){background:#fafbff}
table.compare tbody tr:hover{background:rgba(255,45,120,.05)}
table.compare td.hi{color:var(--pink);font-weight:700;background:rgba(255,45,120,.04)}
.rating-box{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:34px}
.rating{
  background:linear-gradient(160deg,#fff,#f6f8ff);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;text-align:center;box-shadow:var(--shadow);
}
.rating .score{font-size:46px;font-weight:900;line-height:1;
  background:linear-gradient(120deg,var(--pink),var(--orange));-webkit-background-clip:text;background-clip:text;color:transparent}
.rating .stars{color:#ffb800;font-size:20px;letter-spacing:2px;margin-top:8px}
.rating .lbl{font-size:14px;color:var(--muted);margin-top:8px;font-weight:600}
@media (max-width:760px){.rating-box{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:box-shadow .25s,border-color .25s;box-shadow:var(--shadow)}
.faq-item:hover{border-color:rgba(255,45,120,.35)}
.faq-q{
  width:100%;text-align:left;background:none;border:none;padding:20px 24px;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-size:16px;font-weight:700;color:var(--ink);font-family:inherit;line-height:1.5;
}
.faq-q .icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--soft);color:var(--pink);font-size:18px;font-weight:900;transition:transform .3s,background .3s;
}
.faq-item.open .faq-q .icon{transform:rotate(45deg);background:var(--pink);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-a .inner{padding:0 24px 22px;color:var(--muted);font-size:14.5px;line-height:1.8}

/* ---------- Reviews ---------- */
.rev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rev-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;
  box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;display:flex;flex-direction:column;
}
.rev-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.rev-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.rev-avatar{
  width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-weight:900;color:#fff;font-size:17px;flex-shrink:0;
}
.rev-card:nth-child(1) .rev-avatar{background:linear-gradient(135deg,var(--pink),var(--purple))}
.rev-card:nth-child(2) .rev-avatar{background:linear-gradient(135deg,var(--cyan),#0089ff)}
.rev-card:nth-child(3) .rev-avatar{background:linear-gradient(135deg,var(--orange),#ff2d78)}
.rev-card:nth-child(4) .rev-avatar{background:linear-gradient(135deg,var(--purple),var(--cyan))}
.rev-card:nth-child(5) .rev-avatar{background:linear-gradient(135deg,#00b3a4,var(--lime))}
.rev-card:nth-child(6) .rev-avatar{background:linear-gradient(135deg,#ff5c9d,var(--orange))}
.rev-name{font-weight:800;font-size:15px;color:var(--ink)}
.rev-role{font-size:12.5px;color:var(--muted)}
.rev-stars{color:#ffb800;font-size:14px;margin-bottom:10px;letter-spacing:2px}
.rev-text{font-size:14.5px;color:var(--muted);line-height:1.8;flex:1}
@media (max-width:900px){.rev-grid{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.rev-grid{grid-template-columns:1fr}}

/* ---------- Cases ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.case-card{
  border-radius:var(--radius);overflow:hidden;background:#fff;border:1px solid var(--line);
  box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;
}
.case-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.case-card .thumb{overflow:hidden;aspect-ratio:4/3;background:var(--soft)}
.case-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.case-card:hover .thumb img{transform:scale(1.06)}
.case-card .body{padding:20px 22px}
.case-card .cat{font-size:12px;font-weight:800;color:var(--pink);letter-spacing:1px;text-transform:uppercase}
.case-card h3{font-size:17px;font-weight:800;color:var(--ink);margin:6px 0 8px}
.case-card p{font-size:14px;color:var(--muted)}
.case-wide{grid-column:span 2}
@media (max-width:900px){.case-grid{grid-template-columns:1fr 1fr}.case-wide{grid-column:span 1}}
@media (max-width:560px){.case-grid{grid-template-columns:1fr}}

/* ---------- Token / price ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.price-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;
  box-shadow:var(--shadow);position:relative;transition:transform .3s,box-shadow .3s;
}
.price-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.price-card.featured{border:2px solid var(--pink);box-shadow:0 20px 50px rgba(255,45,120,.2)}
.price-card.featured::before{
  content:"推荐";position:absolute;top:-13px;right:24px;background:linear-gradient(135deg,var(--pink),var(--orange));
  color:#fff;font-size:12px;font-weight:800;padding:4px 14px;border-radius:20px;letter-spacing:1px;
}
.price-card h3{font-size:18px;font-weight:800;color:var(--ink);margin-bottom:6px}
.price-card .desc{font-size:13.5px;color:var(--muted);margin-bottom:18px}
.price-card .price{font-size:32px;font-weight:900;color:var(--pink);margin-bottom:4px}
.price-card .price small{font-size:14px;color:var(--muted);font-weight:600}
.price-card ul{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.price-card li{font-size:14px;color:var(--text);display:flex;gap:8px;align-items:flex-start}
.price-card li::before{content:"✓";color:var(--pink);font-weight:900;flex-shrink:0}
@media (max-width:860px){.price-grid{grid-template-columns:1fr}}

/* ---------- Timeline ---------- */
.timeline{position:relative;max-width:820px;margin:0 auto;padding-left:34px}
.timeline::before{content:"";position:absolute;left:10px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--pink),var(--purple),var(--cyan))}
.tl-item{position:relative;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-32px;top:4px;width:16px;height:16px;border-radius:50%;
  background:#fff;border:3px solid var(--pink);box-shadow:0 0 0 4px rgba(255,45,120,.14)}
.tl-item .year{font-size:13px;font-weight:800;color:var(--pink);letter-spacing:1px;margin-bottom:4px}
.tl-item h3{font-size:17px;font-weight:800;color:var(--ink);margin-bottom:4px}
.tl-item p{font-size:14px;color:var(--muted)}

/* ---------- Article list ---------- */
.art-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.art-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 22px;
  box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s,border-color .25s;display:block;
}
.art-item:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(255,45,120,.3)}
.art-item .m{font-size:12.5px;color:var(--pink);font-weight:700;letter-spacing:1px;margin-bottom:8px}
.art-item h3{font-size:16px;font-weight:800;color:var(--ink);line-height:1.5;margin-bottom:10px}
.art-item .more{font-size:13.5px;color:var(--muted);font-weight:600}
@media (max-width:860px){.art-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.art-grid{grid-template-columns:1fr}}

/* ---------- Tag cloud ---------- */
.tagcloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.tagcloud span,.tagcloud a{
  font-size:13.5px;padding:8px 16px;border-radius:24px;background:#fff;border:1px solid var(--line);
  color:var(--text);font-weight:600;transition:all .25s;
}
.tagcloud a:hover{background:var(--pink);color:#fff;border-color:var(--pink);transform:translateY(-3px)}

/* ---------- Form ---------- */
.form-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:start}
.form-info h2{font-size:30px;font-weight:900;color:#fff;margin-bottom:16px;line-height:1.3}
.form-info p{color:rgba(255,255,255,.75);font-size:15px;margin-bottom:24px}
.contact-list{display:flex;flex-direction:column;gap:14px}
.contact-item{display:flex;gap:14px;align-items:flex-start;color:rgba(255,255,255,.85);font-size:14.5px}
.contact-item .ci{
  width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.1);flex-shrink:0;
  display:flex;align-items:center;justify-content:center;font-size:18px;
}
.contact-item .cl{font-size:12.5px;color:rgba(255,255,255,.55);margin-bottom:2px}
.contact-item a{color:var(--lime)}
.qr-box{display:flex;align-items:center;gap:14px;margin-top:20px;padding:16px;border-radius:14px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14)}
.qr-box img{width:88px;height:88px;object-fit:cover;border-radius:10px;background:#fff;padding:4px}
.qr-box .qt{font-size:13px;color:rgba(255,255,255,.7);line-height:1.6}
.form-card{background:#fff;border-radius:var(--radius);padding:34px 30px;box-shadow:var(--shadow-lg)}
.form-card h3{font-size:20px;font-weight:800;color:var(--ink);margin-bottom:6px}
.form-card .fhint{font-size:13.5px;color:var(--muted);margin-bottom:22px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:700;color:var(--ink);margin-bottom:7px}
.field label .req{color:var(--pink)}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;
  font-size:14.5px;font-family:inherit;color:var(--text);background:#fbfcff;transition:border-color .2s,box-shadow .2s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--pink);box-shadow:0 0 0 3px rgba(255,45,120,.12);background:#fff;
}
.field textarea{resize:vertical;min-height:110px}
.form-card button{
  width:100%;justify-content:center;margin-top:6px;font-size:16px;padding:15px;
}
.form-note{font-size:12.5px;color:var(--muted);margin-top:12px;text-align:center}
@media (max-width:900px){.form-wrap{grid-template-columns:1fr;gap:32px}.form-row{grid-template-columns:1fr}}

/* ---------- Partner / agents ---------- */
.partner-box{
  background:linear-gradient(135deg,#ff2d78,#7a3cff 60%,#00d5ff);
  border-radius:24px;padding:50px 44px;color:#fff;display:grid;grid-template-columns:1.2fr .8fr;
  gap:36px;align-items:center;box-shadow:0 24px 60px rgba(122,60,255,.3);
}
.partner-box h2{font-size:30px;font-weight:900;margin-bottom:14px;line-height:1.3}
.partner-box p{font-size:15px;opacity:.92;margin-bottom:22px}
.partner-points{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.partner-points div{background:rgba(255,255,255,.16);padding:10px 14px;border-radius:10px;font-size:14px;font-weight:600}
.partner-cta{display:flex;flex-direction:column;gap:12px}
@media (max-width:860px){.partner-box{grid-template-columns:1fr;padding:36px 26px}.partner-points{grid-template-columns:1fr}}

/* ---------- Extra media ---------- */
.media-band{display:grid;grid-template-columns:1.4fr .6fr;gap:20px;margin-top:40px}
.media-band img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%;height:100%;object-fit:cover}
.media-band .sq{aspect-ratio:1/1}
@media (max-width:760px){.media-band{grid-template-columns:1fr}}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);padding:64px 0 30px;font-size:14px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;margin-bottom:40px}
.foot-brand .ai-page-logo{height:40px;width:auto;margin-bottom:16px}
.foot-brand p{font-size:13.5px;line-height:1.8;margin-bottom:14px}
.foot-col h4{color:#fff;font-size:15px;font-weight:800;margin-bottom:16px}
.foot-col a,.foot-col span{display:block;font-size:13.5px;color:rgba(255,255,255,.65);margin-bottom:10px;transition:color .2s}
.foot-col a:hover{color:var(--lime)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:24px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:rgba(255,255,255,.5)}
@media (max-width:860px){.foot-grid{grid-template-columns:1fr 1fr}}

/* ---------- Floating ---------- */
.float-bar{position:fixed;right:18px;bottom:22px;z-index:90;display:flex;flex-direction:column;gap:12px}
.float-btn{
  width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:20px;border:none;cursor:pointer;box-shadow:0 10px 26px rgba(0,0,0,.25);
  transition:transform .25s,box-shadow .25s;background:rgba(11,15,42,.88);backdrop-filter:blur(6px);
}
.float-btn:hover{transform:translateY(-4px) scale(1.05);box-shadow:0 14px 32px rgba(0,0,0,.35)}
.float-btn.wa{background:linear-gradient(135deg,var(--pink),var(--purple))}
.float-btn.top{opacity:0;pointer-events:none;transition:opacity .3s,transform .25s}
.float-btn.top.show{opacity:1;pointer-events:auto}
.kf-pop{
  position:fixed;right:18px;bottom:22px;width:220px;background:#fff;border-radius:16px;
  padding:16px;box-shadow:var(--shadow-lg);z-index:95;display:none;
}
.kf-pop.show{display:block}
.kf-pop h5{font-size:14px;font-weight:800;color:var(--ink);margin-bottom:10px}
.kf-pop img{width:100%;border-radius:10px;margin-bottom:10px;background:var(--soft)}
.kf-pop p{font-size:12.5px;color:var(--muted);line-height:1.6}
.kf-pop .close{position:absolute;top:8px;right:12px;background:none;border:none;font-size:18px;color:var(--muted);cursor:pointer}
@media (max-width:520px){.kf-pop{width:calc(100vw - 36px);right:18px}}

/* utility */
.center{text-align:center}
.mt32{margin-top:32px}
.mt48{margin-top:48px}
.small{font-size:13px;color:var(--muted)}