*{margin:0;padding:0;box-sizing:border-box}
:root{
  --orange:#ff5b1f;
  --orange-deep:#e8420a;
  --orange-soft:#fff1e9;
  --ink:#1d1a17;
  --ink-2:#4a443f;
  --ink-3:#7c736b;
  --line:#f0e4db;
  --bg:#fffaf6;
  --white:#fff;
  --radius:16px;
}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

/* header */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,250,246,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand .ai-page-logo{width:118px;max-width:118px}
.brand-text{display:none}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap}
.nav-links a{
  display:inline-block;padding:8px 11px;font-size:14px;color:var(--ink-2);
  border-radius:8px;transition:color .2s,background .2s;
}
.nav-links a:hover{color:var(--orange-deep);background:var(--orange-soft)}
.header-cta{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 18px;font-size:14px;font-weight:600;color:#fff;
  background:linear-gradient(135deg,var(--orange),var(--orange-deep));
  border-radius:999px;white-space:nowrap;
  box-shadow:0 6px 16px rgba(255,91,31,.28);
  transition:transform .2s,box-shadow .2s;
}
.header-cta:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(255,91,31,.36)}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:var(--white);
  align-items:center;justify-content:center;flex-shrink:0;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);transition:transform .25s;
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.mobile-menu{display:none;border-top:1px solid var(--line);background:var(--white)}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:12px 20px;font-size:15px;color:var(--ink-2);border-bottom:1px solid #faf1ea}
.mobile-menu a:last-child{border-bottom:none}

/* hero */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 88% 12%,rgba(255,145,66,.28),transparent 46%),
    radial-gradient(circle at 6% 80%,rgba(255,196,120,.30),transparent 52%),
    linear-gradient(160deg,#fff7f0 0%,#ffeedd 55%,#ffe4cf 100%);
  padding:76px 0 88px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,91,31,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,91,31,.055) 1px,transparent 1px);
  background-size:52px 52px;
  -webkit-mask-image:radial-gradient(circle at 50% 40%,#000,transparent 78%);
  mask-image:radial-gradient(circle at 50% 40%,#000,transparent 78%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:start}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.8);border:1px solid rgba(255,91,31,.28);
  font-size:13px;color:var(--orange-deep);font-weight:600;
  margin-bottom:22px;
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--orange);display:inline-block;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.8)}}
.hero h1{
  font-size:clamp(30px,4vw,47px);
  line-height:1.22;font-weight:800;letter-spacing:-.5px;
  color:var(--ink);
}
.hero h1 em{font-style:normal;color:var(--orange-deep);position:relative;white-space:nowrap}
.hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:10px;
  background:rgba(255,145,66,.28);border-radius:4px;z-index:-1;
}
.hero-desc{margin-top:20px;font-size:16px;color:var(--ink-2);max-width:540px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 30px;border-radius:12px;font-size:16px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,#ff7a33,var(--orange-deep));
  box-shadow:0 10px 24px rgba(232,66,10,.32);
  transition:transform .22s,box-shadow .22s;
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 30px rgba(232,66,10,.4)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 26px;border-radius:12px;font-size:16px;font-weight:600;
  color:var(--orange-deep);background:#fff;border:1.5px solid rgba(255,91,31,.35);
  transition:background .22s,transform .22s,border-color .22s;
}
.btn-ghost:hover{background:var(--orange-soft);transform:translateY(-3px);border-color:var(--orange)}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:30px}
.hero-tags span{
  font-size:13px;padding:6px 13px;border-radius:8px;
  background:rgba(255,255,255,.78);color:var(--ink-2);border:1px solid rgba(255,145,66,.22);
}
/* hero side cards */
.hero-side{display:grid;gap:14px}
.metric-card{
  background:rgba(255,255,255,.86);
  border:1px solid rgba(255,145,66,.24);
  border-radius:var(--radius);
  padding:20px 22px;
  box-shadow:0 12px 28px rgba(232,110,50,.1);
  display:flex;align-items:center;gap:16px;
  transition:transform .25s,box-shadow .25s;
}
.metric-card:hover{transform:translateY(-3px);box-shadow:0 18px 34px rgba(232,110,50,.16)}
.metric-num{
  font-size:26px;font-weight:800;color:var(--orange-deep);
  line-height:1.1;min-width:84px;
}
.metric-num small{font-size:13px;font-weight:600;color:var(--ink-3);display:block}
.metric-text{font-size:14px;color:var(--ink-2);line-height:1.6}
.hero-side .mini-note{
  font-size:13px;color:var(--ink-3);
  background:rgba(255,255,255,.6);border:1px dashed rgba(255,91,31,.3);
  border-radius:12px;padding:12px 16px;
}

/* shared section */
.section{padding:76px 0}
.section.alt{background:linear-gradient(180deg,#fff8f2 0%,#fff3e8 100%)}
.section-head{max-width:720px;margin-bottom:42px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;
  color:var(--orange-deep);margin-bottom:12px;
}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.3;font-weight:800;color:var(--ink)}
.section-head p{margin-top:14px;font-size:15.5px;color:var(--ink-2)}

.reveal{opacity:0;transform:translateY(26px);transition:opacity .65s ease,transform .65s ease}
.reveal.visible{opacity:1;transform:none}

/* about */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:stretch}
.about-main{
  background:var(--white);border-radius:20px;padding:34px;
  border:1px solid var(--line);box-shadow:0 10px 26px rgba(180,120,80,.07);
}
.about-main h3{font-size:21px;font-weight:800;margin-bottom:14px}
.about-main p{font-size:15px;color:var(--ink-2);margin-bottom:12px}
.about-main p:last-child{margin-bottom:0}
.about-points{display:grid;gap:12px}
.point-item{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--white);border:1px solid var(--line);border-radius:14px;
  padding:16px 18px;transition:border-color .22s,transform .22s;
}
.point-item:hover{border-color:rgba(255,91,31,.45);transform:translateX(4px)}
.point-item .dot{
  flex-shrink:0;width:30px;height:30px;border-radius:9px;
  background:var(--orange-soft);color:var(--orange-deep);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:14px;
}
.point-item b{display:block;font-size:15px;margin-bottom:2px}
.point-item span{font-size:13.5px;color:var(--ink-3)}

/* services */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.service-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;transition:transform .25s,box-shadow .25s,border-color .25s;
  display:flex;flex-direction:column;gap:8px;
}
.service-card:hover{transform:translateY(-6px);box-shadow:0 18px 34px rgba(200,120,70,.14);border-color:rgba(255,91,31,.35)}
.service-icon{
  width:42px;height:42px;border-radius:12px;
  background:linear-gradient(135deg,#ffe3d1,#ffc9a8);
  display:flex;align-items:center;justify-content:center;margin-bottom:4px;
  font-size:19px;
}
.service-card h3{font-size:16.5px;font-weight:700}
.service-card p{font-size:14px;color:var(--ink-3);line-height:1.65}

/* flow */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;position:relative}
.flow-item{
  background:var(--white);border-radius:16px;padding:26px 20px;
  border:1px solid var(--line);
  position:relative;transition:transform .25s,box-shadow .25s;
}
.flow-item:hover{transform:translateY(-5px);box-shadow:0 16px 30px rgba(200,120,70,.13)}
.flow-step{
  font-size:13px;font-weight:800;color:var(--orange-deep);
  letter-spacing:1px;margin-bottom:10px;
}
.flow-item h3{font-size:16px;font-weight:700;margin-bottom:8px}
.flow-item p{font-size:13.5px;color:var(--ink-3)}

/* solutions */
.solution-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.solution-card{
  background:linear-gradient(150deg,#fff 0%,#fff6ef 100%);
  border:1px solid var(--line);border-radius:18px;padding:28px;
  transition:transform .25s,box-shadow .25s;
}
.solution-card:hover{transform:translateY(-5px);box-shadow:0 18px 32px rgba(200,120,70,.13)}
.solution-card h3{font-size:18px;font-weight:800;margin-bottom:10px;display:flex;align-items:center;gap:9px}
.solution-card h3::before{content:"";width:6px;height:20px;border-radius:3px;background:var(--orange)}
.solution-card p{font-size:14.5px;color:var(--ink-2);margin-bottom:14px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag-row span{
  font-size:12.5px;padding:4px 11px;border-radius:6px;
  background:#fff;border:1px solid rgba(255,145,66,.3);color:var(--orange-deep);font-weight:600;
}

/* network */
.network-wrap{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
}
.net-item{
  background:var(--white);border:1px solid var(--line);border-radius:14px;
  padding:22px 18px;text-align:center;transition:transform .25s;
}
.net-item:hover{transform:translateY(-4px)}
.net-item b{display:block;font-size:16px;margin-bottom:6px}
.net-item span{font-size:13px;color:var(--ink-3)}

/* comparison table */
.table-wrap{
  background:var(--white);border:1px solid var(--line);border-radius:18px;
  overflow-x:auto;box-shadow:0 10px 26px rgba(180,120,80,.07);
}
table.compare{width:100%;border-collapse:collapse;min-width:680px}
table.compare th,table.compare td{
  padding:15px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid #f8ece3;
}
table.compare thead th{
  background:linear-gradient(135deg,#fff2e8,#ffe5d4);
  font-size:14px;color:var(--ink);font-weight:800;
}
table.compare thead th:first-child{color:var(--orange-deep)}
table.compare tbody tr:last-child td{border-bottom:none}
table.compare tbody tr:hover{background:#fffaf5}
table.compare td.highlight{color:var(--orange-deep);font-weight:700}
.score-box{
  margin-top:24px;display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
}
.score-card{
  background:var(--white);border:1px solid var(--line);border-radius:16px;
  padding:24px;text-align:center;
}
.score-card .big{font-size:34px;font-weight:800;color:var(--orange-deep);line-height:1.1}
.score-card .big small{font-size:15px;color:var(--ink-3);font-weight:600}
.score-card .stars{color:#ffab2e;font-size:17px;letter-spacing:3px;margin:6px 0}
.score-card p{font-size:13.5px;color:var(--ink-3)}

/* reviews */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.review-card{
  background:var(--white);border:1px solid var(--line);border-radius:16px;padding:24px;
  display:flex;flex-direction:column;gap:12px;transition:transform .25s,box-shadow .25s;
}
.review-card:hover{transform:translateY(-5px);box-shadow:0 16px 30px rgba(200,120,70,.12)}
.review-text{font-size:14.5px;color:var(--ink-2);line-height:1.75;flex:1}
.review-user{display:flex;align-items:center;gap:11px;padding-top:12px;border-top:1px solid #f8ece3}
.avatar{
  width:38px;height:38px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,#ffd3b6,#ff9a5c);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:800;font-size:15px;
}
.review-user b{display:block;font-size:14px}
.review-user span{font-size:12.5px;color:var(--ink-3)}

/* cases */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.case-card{
  background:var(--white);border:1px solid var(--line);border-radius:16px;overflow:hidden;
  transition:transform .25s,box-shadow .25s;
}
.case-card:hover{transform:translateY(-5px);box-shadow:0 18px 34px rgba(200,120,70,.14)}
.case-media{aspect-ratio:16/10;overflow:hidden;background:#fff3ea}
.case-media img{width:100%;height:100%;object-fit:cover}
.case-body{padding:18px 20px 22px}
.case-body h3{font-size:16px;font-weight:700;margin-bottom:6px}
.case-body p{font-size:13.5px;color:var(--ink-3)}

/* token price */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.price-card{
  background:var(--white);border:1px solid var(--line);border-radius:16px;padding:26px;
  display:flex;flex-direction:column;gap:10px;transition:transform .25s,box-shadow .25s;
}
.price-card:hover{transform:translateY(-5px);box-shadow:0 16px 30px rgba(200,120,70,.12)}
.price-card.featured{border-color:rgba(255,91,31,.5);box-shadow:0 14px 30px rgba(255,91,31,.14)}
.price-card h3{font-size:16px;font-weight:800}
.price-card .price{font-size:28px;font-weight:800;color:var(--orange-deep)}
.price-card .price small{font-size:13px;color:var(--ink-3);font-weight:600}
.price-card ul{display:grid;gap:8px;margin-top:6px}
.price-card li{font-size:13.5px;color:var(--ink-2);padding-left:18px;position:relative}
.price-card li::before{content:"";position:absolute;left:0;top:8px;width:7px;height:7px;border-radius:2px;background:var(--orange)}
.price-note{font-size:12.5px;color:var(--ink-3);margin-top:20px;text-align:center}

/* articles */
.article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.article-item{
  display:flex;flex-direction:column;gap:8px;
  background:var(--white);border:1px solid var(--line);border-radius:14px;
  padding:20px;transition:transform .25s,border-color .25s;
}
.article-item:hover{transform:translateY(-4px);border-color:rgba(255,91,31,.4)}
.article-item .cat{font-size:12px;color:var(--orange-deep);font-weight:700}
.article-item h3{font-size:15px;font-weight:700;line-height:1.5}
.article-item p{font-size:13px;color:var(--ink-3)}
.article-item a.more{font-size:13.5px;color:var(--orange-deep);font-weight:700;margin-top:4px}

/* form */
.form-wrap{
  display:grid;grid-template-columns:.85fr 1.15fr;gap:28px;align-items:start;
}
.form-side{
  background:linear-gradient(155deg,#ff7a33 0%,#e8420a 100%);
  border-radius:20px;padding:34px;color:#fff;
}
.form-side h3{font-size:22px;font-weight:800;margin-bottom:14px;color:#fff}
.form-side p{font-size:14.5px;color:rgba(255,255,255,.92);margin-bottom:18px}
.contact-list{display:grid;gap:12px}
.contact-list li{font-size:14px;color:rgba(255,255,255,.95);display:flex;align-items:center;gap:9px}
.contact-list li b{color:#fff;font-weight:700}
.qr-box{
  margin-top:22px;background:rgba(255,255,255,.15);border-radius:14px;padding:14px;
  display:flex;align-items:center;gap:14px;
}
.qr-box img{width:88px;height:88px;object-fit:cover;border-radius:8px;background:#fff}
.qr-box span{font-size:13.5px;color:rgba(255,255,255,.95)}
form.demand{
  background:var(--white);border:1px solid var(--line);border-radius:20px;
  padding:32px;box-shadow:0 12px 30px rgba(180,120,80,.08);
  display:grid;grid-template-columns:1fr 1fr;gap:16px;
}
.field{display:flex;flex-direction:column;gap:6px}
.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:11px 14px;font-size:14.5px;font-family:inherit;
  border:1px solid #efdcd0;border-radius:10px;background:#fffdfb;color:var(--ink);
  transition:border-color .2s,box-shadow .2s;outline:none;
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,91,31,.13)
}
.field textarea{resize:vertical;min-height:100px}
.form-submit{
  grid-column:1/-1;justify-self:start;
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 34px;border-radius:11px;font-size:15.5px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,#ff7a33,var(--orange-deep));
  box-shadow:0 10px 22px rgba(232,66,10,.28);
  transition:transform .2s,box-shadow .2s;
}
.form-submit:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(232,66,10,.36)}

/* faq */
.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-radius:13px;
  overflow:hidden;transition:border-color .25s;
}
.faq-item.active{border-color:rgba(255,91,31,.45)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:17px 20px;font-size:15px;font-weight:600;color:var(--ink);text-align:left;
}
.faq-q .icon{
  flex-shrink:0;width:22px;height:22px;border-radius:50%;
  background:var(--orange-soft);color:var(--orange-deep);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;transition:transform .28s,background .28s;
}
.faq-item.active .faq-q .icon{transform:rotate(45deg);background:var(--orange);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a p{padding:0 20px 18px;font-size:14.5px;color:var(--ink-2)}

/* footer */
.site-footer{
  background:#241d18;color:#d8cec6;padding:52px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;
  padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.1);
}
.site-footer h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:14px}
.site-footer p{font-size:13.5px;color:#b9ada4;line-height:1.75}
.footer-links{display:grid;gap:9px}
.footer-links a{font-size:13.5px;color:#c4b8af;transition:color .2s}
.footer-links a:hover{color:#ff9155}
.footer-contact li{font-size:13.5px;color:#c4b8af;margin-bottom:9px}
.footer-contact b{color:#fff;font-weight:600}
.footer-links-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px 14px}
.footer-bottom{
  padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#9c9089;
}
.footer-bottom a{color:#c4b8af}
.footer-bottom a:hover{color:#ff9155}

/* float service */
.float-service{position:fixed;right:18px;bottom:22px;z-index:90;display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.float-btn{
  width:50px;height:50px;border-radius:50%;
  background:linear-gradient(135deg,#ff7a33,var(--orange-deep));color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(232,66,10,.4);
  font-size:19px;transition:transform .22s;
}
.float-btn:hover{transform:scale(1.08)}
.float-panel{
  display:none;width:210px;background:#fff;border-radius:14px;padding:16px;
  box-shadow:0 16px 36px rgba(60,40,25,.2);border:1px solid var(--line);
}
.float-panel.open{display:block;animation:popIn .25s ease}
@keyframes popIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.float-panel h5{font-size:14px;font-weight:700;margin-bottom:10px;color:var(--ink)}
.float-panel img{width:100%;border-radius:8px;margin-bottom:8px}
.float-panel p{font-size:12.5px;color:var(--ink-3);line-height:1.6}

/* responsive */
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .price-grid{grid-template-columns:1fr}
  .article-list{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr}
  .solution-grid{grid-template-columns:1fr}
}
@media(max-width:860px){
  .nav-links,.header-cta{display:none}
  .menu-toggle{display:flex}
  .form-wrap{grid-template-columns:1fr}
  form.demand{grid-template-columns:1fr}
  .network-wrap{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .section{padding:56px 0}
  .hero{padding:52px 0 62px}
  .service-grid,.flow-grid,.review-grid,.case-grid,.article-list{grid-template-columns:1fr}
  .score-box{grid-template-columns:1fr}
  .metric-card{flex-direction:column;align-items:flex-start;gap:6px}
  .form-side{padding:26px}
  form.demand{padding:24px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-links-grid{grid-template-columns:repeat(2,1fr)}
  .network-wrap{grid-template-columns:1fr}
}