*{box-sizing:border-box;}
:root{
  --ink:#171821;
  --ink-2:#4b4d5e;
  --ink-3:#757789;
  --paper:#fff7f2;
  --line:rgba(23,24,33,.10);
  --hot:#f5322b;
  --hot-2:#ff7a00;
  --pop:#00a99b;
  --violet:#5b4bff;
  --radius:18px;
}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--ink);
  background-color:#fff7f2;
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(720px 480px at 10% 0%, rgba(245,50,43,.16), transparent 70%),
    radial-gradient(680px 520px at 90% 10%, rgba(91,75,255,.14), transparent 70%),
    radial-gradient(760px 620px at 46% 55%, rgba(0,169,155,.11), transparent 72%),
    radial-gradient(640px 520px at 88% 92%, rgba(255,122,0,.14), transparent 70%);
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3{letter-spacing:-.01em;}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}
.section{padding:76px 0;}
.section-tint{
  background:rgba(255,255,255,.62);
  border-top:1px solid rgba(23,24,33,.07);
  border-bottom:1px solid rgba(23,24,33,.07);
}
.section-head{max-width:780px;margin-bottom:36px;}
.section-head h2{font-size:clamp(23px,3vw,34px);line-height:1.3;margin:10px 0 12px;}
.section-desc{margin:0;color:var(--ink-2);font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  margin:0;font-size:12.5px;font-weight:800;letter-spacing:.16em;
  color:#d8291f;text-transform:uppercase;
}
.eyebrow::before{
  content:"";width:24px;height:3px;border-radius:3px;
  background:linear-gradient(90deg,var(--hot),var(--hot-2));
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;font-size:15px;font-weight:700;
  border:1px solid transparent;cursor:pointer;font-family:inherit;
  transition:transform .18s ease,box-shadow .26s ease,border-color .2s ease,color .2s ease,background .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#f5322b,#ff7a00);
  color:#fff;
  box-shadow:0 16px 30px -14px rgba(245,50,43,.8);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 38px -14px rgba(245,50,43,.9);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:#fff;color:var(--ink);border-color:rgba(23,24,33,.16);
  box-shadow:0 12px 24px -20px rgba(23,24,33,.7);
}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(245,50,43,.55);color:#c22a1f;}
.btn-sm{padding:10px 20px;font-size:14px;}

/* header */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,247,242,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(23,24,33,.08);
}
.nav-bar{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:68px;position:relative;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.ai-page-logo{max-width:132px;height:auto;}
.brand-text{font-weight:800;font-size:17px;letter-spacing:.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:nowrap;}
.nav-links a{
  padding:9px 11px;border-radius:10px;font-size:14.5px;font-weight:600;
  color:var(--ink-2);white-space:nowrap;transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:#c22a1f;background:rgba(245,50,43,.08);}
.nav-cta{
  flex:0 0 auto;padding:10px 20px;border-radius:999px;font-size:14px;font-weight:700;
  color:#fff;background:linear-gradient(135deg,#f5322b,#ff7a00);
  box-shadow:0 14px 26px -16px rgba(245,50,43,.95);
  transition:transform .18s ease,box-shadow .24s ease;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 18px 30px -14px rgba(245,50,43,.95);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  padding:9px 16px;border-radius:10px;border:1px solid rgba(23,24,33,.16);
  background:#fff;color:var(--ink);font-size:14px;font-weight:700;
  font-family:inherit;cursor:pointer;
}

/* hero */
.hero{padding:64px 0 20px;}
.hero-grid{
  display:grid;grid-template-columns:1.12fr .88fr;
  gap:52px;align-items:center;
}
.hero h1{
  font-size:clamp(29px,4.4vw,50px);
  line-height:1.16;margin:16px 0 0;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,#f5322b,#ff7a00 60%,#5b4bff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{
  margin:20px 0 0;color:var(--ink-2);font-size:16.5px;max-width:600px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-points{
  display:grid;gap:9px;margin-top:26px;
}
.hero-points li{
  position:relative;padding-left:26px;font-size:14.8px;color:var(--ink-2);
}
.hero-points li::before{
  content:"";position:absolute;left:0;top:9px;
  width:14px;height:14px;border-radius:50%;
  background:radial-gradient(circle at 32% 32%,#ffd2b8,#f5322b 68%);
  box-shadow:0 0 0 3px rgba(245,50,43,.12);
}
.hero-visual{position:relative;}
.hv-frame{
  display:grid;gap:14px;padding:22px;border-radius:26px;
  background:
    linear-gradient(140deg,rgba(245,50,43,.16),rgba(91,75,255,.12) 52%,rgba(0,169,155,.16)),
    #fff;
  border:1px solid rgba(23,24,33,.08);
  box-shadow:0 34px 64px -44px rgba(23,24,33,.7);
}
.hv-card{
  display:flex;flex-direction:column;gap:2px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:14px 16px;
  box-shadow:0 14px 26px -24px rgba(23,24,33,.8);
  animation:hvFloat 6.5s ease-in-out infinite;
}
.hv-card-b{margin-left:24px;animation-delay:1.1s;}
.hv-card-c{margin-left:10px;animation-delay:2.2s;}
.hv-title{margin:6px 0 0;font-weight:800;font-size:15px;}
.hv-text{margin:0;font-size:13.5px;color:var(--ink-2);line-height:1.6;}
.hv-dot{
  width:26px;height:26px;border-radius:9px;
  background:linear-gradient(135deg,#f5322b,#ff7a00);
}
.hv-dot-alt{background:linear-gradient(135deg,#5b4bff,#00a99b);}
.hv-dot-pop{background:linear-gradient(135deg,#00a99b,#ff7a00);}
@keyframes hvFloat{
  0%,100%{transform:translateY(0);}
  50%{transform:translateY(-7px);}
}
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
  margin-top:48px;padding:22px;border-radius:20px;
  background:rgba(255,255,255,.78);
  border:1px solid rgba(23,24,33,.08);
  box-shadow:0 24px 48px -42px rgba(23,24,33,.85);
}
.stat-item{padding:4px 10px;border-left:3px solid rgba(245,50,43,.35);}
.stat-item:first-child{border-left-color:transparent;padding-left:0;}
.stat-num{
  margin:0;font-size:clamp(21px,2.4vw,28px);font-weight:800;line-height:1.2;
  background:linear-gradient(120deg,#f5322b,#ff7a00);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-label{margin:4px 0 0;font-size:13.5px;color:var(--ink-2);}

/* about */
.about-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:36px;align-items:start;}
.about-main p{margin:0 0 16px;color:var(--ink-2);font-size:15.8px;}
.about-main p:last-child{margin-bottom:0;}
.about-side{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:0 24px 44px -40px rgba(23,24,33,.8);
}
.about-side h3{margin:0 0 16px;font-size:16.5px;}
.cap-list{display:grid;gap:14px;}
.cap-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2);line-height:1.6;}
.cap-list strong{display:block;color:var(--ink);font-size:14.5px;font-weight:700;}
.cap-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:8px;border-radius:3px;
  background:linear-gradient(135deg,#f5322b,#ff7a00);
}

/* services */
.srv-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(238px,1fr));gap:18px;}
.srv-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:22px 20px;display:flex;flex-direction:column;gap:8px;
  transition:transform .22s ease,box-shadow .28s ease,border-color .22s ease;
}
.srv-card:hover{
  transform:translateY(-4px);
  border-color:rgba(245,50,43,.35);
  box-shadow:0 26px 44px -32px rgba(23,24,33,.7);
}
.srv-card h3{margin:0;font-size:16.5px;}
.srv-card p{margin:0;font-size:14.2px;color:var(--ink-2);line-height:1.65;}
.srv-dot{
  width:30px;height:30px;border-radius:10px;margin-bottom:4px;
  background:linear-gradient(135deg,rgba(245,50,43,.9),rgba(255,122,0,.85));
  box-shadow:0 10px 20px -12px rgba(245,50,43,.9);
}
.srv-card:nth-child(3n+2) .srv-dot{background:linear-gradient(135deg,rgba(91,75,255,.9),rgba(0,169,155,.85));box-shadow:0 10px 20px -12px rgba(91,75,255,.9);}
.srv-card:nth-child(3n) .srv-dot{background:linear-gradient(135deg,rgba(0,169,155,.9),rgba(255,122,0,.85));box-shadow:0 10px 20px -12px rgba(0,169,155,.9);}

/* workflow */
.flow-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:40px;align-items:start;}
.flow-media{
  border-radius:20px;overflow:hidden;background:#f6efe9;
  border:1px solid rgba(23,24,33,.08);
  box-shadow:0 28px 52px -42px rgba(23,24,33,.8);
}
.flow-media .ai-page-image{width:100%;aspect-ratio:16/11;object-fit:cover;}
.flow-media figcaption{
  margin:0;padding:14px 18px;font-size:13.5px;color:var(--ink-2);
  background:#fff;border-top:1px solid rgba(23,24,33,.07);
}
.flow-side h3{margin:0 0 14px;font-size:20px;}
.flow-side > p{margin:0 0 20px;color:var(--ink-2);font-size:15.4px;}
.mini-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
.mini-card{
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 16px;
  transition:transform .22s ease,box-shadow .28s ease;
}
.mini-card:hover{transform:translateY(-3px);box-shadow:0 22px 38px -32px rgba(23,24,33,.75);}
.mini-card h4{margin:0 0 6px;font-size:15px;}
.mini-card p{margin:0;font-size:13.5px;color:var(--ink-2);line-height:1.6;}

/* tag cloud */
.model-block{margin-top:52px;}
.model-block h3{margin:0 0 8px;font-size:18px;}
.model-block p.model-tip{margin:0 0 18px;font-size:14.5px;color:var(--ink-2);}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;}
.tag-cloud span{
  padding:8px 15px;border-radius:999px;font-size:13.5px;font-weight:600;
  color:#7d2a1d;background:#fff;
  border:1px solid rgba(245,50,43,.22);
  box-shadow:0 10px 18px -18px rgba(245,50,43,.9);
  transition:transform .18s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.tag-cloud span:hover{transform:translateY(-2px);background:linear-gradient(135deg,#f5322b,#ff7a00);color:#fff;border-color:transparent;}

/* solutions */
.sol-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(268px,1fr));gap:18px;}
.sol-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px 22px;
  display:flex;flex-direction:column;gap:10px;
  transition:transform .22s ease,box-shadow .28s ease,border-color .22s ease;
}
.sol-card:hover{transform:translateY(-4px);border-color:rgba(91,75,255,.3);box-shadow:0 26px 44px -32px rgba(23,24,33,.7);}
.sol-card h3{margin:0;font-size:16.5px;}
.sol-card p{margin:0;font-size:14.2px;color:var(--ink-2);line-height:1.7;}
.sol-tag{
  align-self:flex-start;padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:700;color:#0b6d63;
  background:rgba(0,169,155,.12);border:1px solid rgba(0,169,155,.28);
}

/* network */
.net-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px;}
.net-card{
  background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:14px;
  padding:20px;transition:transform .22s ease,box-shadow .28s ease;
}
.net-card:hover{transform:translateY(-3px);box-shadow:0 24px 40px -34px rgba(23,24,33,.8);}
.net-card h3{margin:0 0 8px;font-size:15.5px;}
.net-card p{margin:0;font-size:14px;color:var(--ink-2);line-height:1.7;}
.net-note{
  margin:22px 0 0;padding:16px 20px;border-radius:14px;
  background:rgba(245,50,43,.07);border:1px dashed rgba(245,50,43,.3);
  font-size:14.5px;color:#8e2a1d;
}

/* process */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:20px 18px;display:flex;flex-direction:column;gap:8px;
  transition:transform .22s ease,box-shadow .28s ease,border-color .22s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(245,50,43,.32);box-shadow:0 26px 44px -32px rgba(23,24,33,.75);}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;font-size:14px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,#f5322b,#ff7a00);
  box-shadow:0 12px 22px -14px rgba(245,50,43,.95);
}
.step h3{margin:2px 0 0;font-size:15.5px;}
.step p{margin:0;font-size:13.6px;color:var(--ink-2);line-height:1.65;}

/* cases */
.case-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .28s ease;
}
.case-card:hover{transform:translateY(-5px);box-shadow:0 32px 54px -38px rgba(23,24,33,.8);}
.case-media{background:#f7f1ec;border-bottom:1px solid rgba(23,24,33,.06);}
.case-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.case-body{padding:20px;display:flex;flex-direction:column;gap:8px;}
.case-body h3{margin:0;font-size:16.5px;}
.case-body p{margin:0;font-size:14.2px;color:var(--ink-2);line-height:1.7;}

/* reviews */
.review-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:18px;}
.review-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;
  display:flex;flex-direction:column;gap:12px;height:100%;
  transition:transform .22s ease,box-shadow .28s ease;
}
.review-card:hover{transform:translateY(-4px);box-shadow:0 26px 46px -34px rgba(23,24,33,.7);}
.review-text{margin:0;font-size:14.5px;color:var(--ink-2);line-height:1.75;}
.review-meta{display:flex;align-items:center;gap:11px;margin-top:auto;padding-top:6px;}
.review-avatar{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  font-weight:800;font-size:15px;color:#c22a1f;
  background:linear-gradient(135deg,#ffd9cf,#ffe8cc);
  border:1px solid rgba(245,50,43,.2);
}
.review-name{margin:0;font-size:14.5px;font-weight:700;}
.review-role{margin:0;font-size:13px;color:var(--ink-3);}

/* compare */
.compare{
  background:linear-gradient(150deg,#1b1c27,#2c1f38 62%,#1c2634);
  color:#f4f2ee;
  border-top:1px solid rgba(255,255,255,.08);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.compare .eyebrow{color:#ffb3a6;}
.compare .eyebrow::before{background:linear-gradient(90deg,#ff7a00,#f5322b);}
.compare .section-head h2{color:#fff;}
.compare .section-desc{color:#c9c8d6;}
.compare-top{display:grid;grid-template-columns:1fr 300px;gap:26px;align-items:start;margin-bottom:26px;}
.score-card{
  border-radius:20px;padding:24px;text-align:center;
  background:linear-gradient(150deg,rgba(245,50,43,.9),rgba(255,122,0,.86));
  box-shadow:0 28px 50px -34px rgba(255,122,0,.9);
  color:#fff;
}
.score-stars{margin:0;font-size:20px;letter-spacing:4px;color:#fff4d6;}
.score-num{margin:6px 0 0;font-size:42px;font-weight:800;line-height:1.1;}
.score-num span{font-size:17px;font-weight:600;opacity:.85;}
.score-label{margin:6px 0 0;font-size:14px;font-weight:600;color:#fff4ef;}
.score-note{margin:10px 0 0;font-size:12.8px;color:rgba(255,255,255,.86);line-height:1.6;}
.compare-table-wrap{
  overflow-x:auto;border-radius:18px;background:#fff;
  box-shadow:0 34px 60px -40px rgba(0,0,0,.7);
}
.compare-table{width:100%;border-collapse:collapse;min-width:680px;font-size:14.5px;color:var(--ink);}
.compare-table th,.compare-table td{padding:14px 18px;text-align:left;border-bottom:1px solid rgba(23,24,33,.08);vertical-align:top;}
.compare-table thead th{background:#fff2ec;font-size:14.5px;font-weight:800;}
.compare-table tbody tr:last-child td{border-bottom:none;}
.compare-table tbody th{font-weight:700;color:var(--ink);background:#fdfbfa;}
.compare-table .best{background:rgba(245,50,43,.075);font-weight:700;color:#b3261c;}

/* token */
.token-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:start;}
.token-table-wrap{overflow-x:auto;border-radius:16px;border:1px solid var(--line);background:#fff;}
.token-table{width:100%;border-collapse:collapse;min-width:560px;font-size:14.2px;}
.token-table th,.token-table td{padding:14px 16px;text-align:left;border-bottom:1px solid rgba(23,24,33,.08);}
.token-table thead th{background:#fff2ec;font-weight:800;}
.token-table tbody tr:last-child td{border-bottom:none;}
.token-table td:last-child{color:#b3261c;font-weight:700;}
.token-steps{display:grid;gap:14px;}
.token-step{
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;
  display:flex;gap:14px;align-items:flex-start;
  transition:transform .2s ease,box-shadow .26s ease;
}
.token-step:hover{transform:translateY(-3px);box-shadow:0 22px 38px -32px rgba(23,24,33,.75);}
.token-step-no{
  flex:0 0 auto;width:30px;height:30px;border-radius:10px;display:grid;place-items:center;
  font-weight:800;font-size:13.5px;color:#fff;
  background:linear-gradient(135deg,#5b4bff,#00a99b);
}
.token-step h3{margin:0 0 4px;font-size:15px;}
.token-step p{margin:0;font-size:13.8px;color:var(--ink-2);line-height:1.65;}
.token-note{margin:18px 0 0;font-size:13.5px;color:var(--ink-3);}

/* resources */
.res-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;}
.res-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px 22px;
  display:flex;flex-direction:column;gap:12px;
}
.res-card h3{margin:0;font-size:17px;}
.res-card p{margin:0;font-size:14px;color:var(--ink-2);}
.link-list{display:grid;gap:10px;}
.link-list a{
  font-size:14.2px;color:var(--ink-2);padding-left:16px;position:relative;
  transition:color .2s ease,transform .2s ease;
}
.link-list a::before{
  content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:2px;
  background:linear-gradient(135deg,#f5322b,#ff7a00);
}
.link-list a:hover{color:#c22a1f;transform:translateX(3px);}
.wiki-tags{display:flex;flex-wrap:wrap;gap:8px;}
.wiki-tags span{
  padding:6px 13px;border-radius:999px;font-size:13px;font-weight:600;
  color:#3f4a63;background:#f6f7fb;border:1px solid rgba(23,24,33,.09);
  transition:background .2s ease,color .2s ease,transform .18s ease;
}
.wiki-tags span:hover{background:rgba(91,75,255,.12);color:#3b2fa8;transform:translateY(-2px);}

/* faq */
.faq-wrap{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;align-items:start;}
.faq-item{
  border:1px solid var(--line);border-radius:14px;background:#fff;overflow:hidden;
  transition:border-color .22s ease,box-shadow .26s ease;
}
.faq-item:hover{border-color:rgba(245,50,43,.3);}
.faq-item.open{box-shadow:0 22px 40px -34px rgba(23,24,33,.75);border-color:rgba(245,50,43,.35);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:16px 18px;background:none;border:0;cursor:pointer;text-align:left;
  font-family:inherit;font-size:15px;font-weight:700;color:var(--ink);line-height:1.5;
}
.faq-icon{
  position:relative;flex:0 0 auto;width:20px;height:20px;border-radius:50%;
  background:rgba(245,50,43,.1);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:#d8291f;border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:2px;}
.faq-icon::after{width:2px;height:10px;transition:opacity .25s ease;}
.faq-item.open .faq-icon::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease;}
.faq-a p{margin:0;padding:0 18px 16px;font-size:14.2px;color:var(--ink-2);line-height:1.75;}

/* contact */
.contact-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:30px;align-items:start;}
.lead-form{
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;
  box-shadow:0 26px 50px -42px rgba(23,24,33,.85);
  display:grid;gap:16px;
}
.form-row{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.field{display:grid;gap:7px;}
.field label{font-size:13.8px;font-weight:700;color:var(--ink);}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:12px;font-size:14.8px;font-family:inherit;
  color:var(--ink);background:#fff;border:1px solid rgba(23,24,33,.15);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{resize:vertical;min-height:110px;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:rgba(245,50,43,.62);box-shadow:0 0 0 4px rgba(245,50,43,.13);
}
.field input::placeholder,.field textarea::placeholder{color:#9a9cad;}
.form-submit{justify-self:start;padding:14px 34px;}
.contact-card{
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px;
  display:grid;gap:16px;box-shadow:0 26px 50px -42px rgba(23,24,33,.85);
}
.contact-card h3{margin:0;font-size:17px;}
.qr-box{
  display:flex;align-items:center;gap:16px;
  padding:14px;border-radius:14px;background:#fdf7f3;border:1px solid rgba(23,24,33,.08);
}
.qr-box img{width:110px;max-width:100%;height:auto;border-radius:10px;background:#fff;}
.qr-box p{margin:0;font-size:13.8px;color:var(--ink-2);line-height:1.7;}
.qr-box strong{display:block;color:var(--ink);font-size:14.5px;margin-bottom:2px;}
.contact-list{display:grid;gap:10px;}
.contact-list li{
  display:flex;gap:10px;align-items:baseline;font-size:14.2px;color:var(--ink-2);
  padding-bottom:10px;border-bottom:1px dashed rgba(23,24,33,.1);
}
.contact-list li:last-child{border-bottom:none;padding-bottom:0;}
.contact-list b{color:var(--ink-3);font-weight:600;flex:0 0 100px;font-size:13.5px;}
.contact-list a{color:#b3261c;font-weight:700;}
.contact-list a:hover{text-decoration:underline;}

/* join */
.join{
  background:linear-gradient(120deg,#f5322b,#ff7a00 58%,#5b4bff);
  color:#fff;padding:44px 0;
}
.join-inner{
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
}
.join h2{margin:0 0 8px;font-size:clamp(20px,2.6vw,28px);color:#fff;}
.join p{margin:0;font-size:14.8px;color:rgba(255,255,255,.92);max-width:640px;}
.join .btn-ghost{background:#fff;color:#c22a1f;border-color:transparent;box-shadow:0 18px 34px -22px rgba(0,0,0,.6);}
.join .btn-ghost:hover{color:#8e1d15;transform:translateY(-2px);}

/* footer */
.site-footer{
  background:#16171f;color:#c7c8d4;padding:48px 0 24px;
  border-top:1px solid rgba(255,255,255,.08);
}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;align-items:start;}
.footer-brand h3{margin:0 0 10px;font-size:18px;color:#fff;}
.footer-brand p{margin:0 0 12px;font-size:14px;color:#a8a9ba;line-height:1.75;}
.footer-links{display:grid;gap:9px;}
.footer-links a{font-size:14px;color:#c7c8d4;transition:color .2s ease;}
.footer-links a:hover{color:#ffb3a6;}
.footer-col h4{margin:0 0 12px;font-size:14.5px;color:#fff;font-weight:700;}
.friend-links{
  margin-top:32px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
}
.friend-links h4{margin:0 0 12px;font-size:14px;color:#fff;}
.friend-links ul{display:flex;flex-wrap:wrap;gap:8px 18px;}
.friend-links a{font-size:13.5px;color:#a8a9ba;transition:color .2s ease;}
.friend-links a:hover{color:#ffb3a6;}
.copyright{
  margin:22px 0 0;padding-top:16px;border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:#8f90a1;
}

/* float service */
.float-service{position:fixed;right:18px;bottom:88px;z-index:80;}
.float-btn{
  width:58px;height:58px;border-radius:50%;border:0;cursor:pointer;
  font-family:inherit;font-size:13px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,#f5322b,#ff7a00);
  box-shadow:0 18px 32px -14px rgba(245,50,43,.9);
  transition:transform .2s ease,box-shadow .24s ease;
}
.float-btn:hover{transform:translateY(-3px) scale(1.03);}
.service-panel{
  position:absolute;right:0;bottom:70px;width:220px;
  background:#fff;border:1px solid rgba(23,24,33,.1);border-radius:16px;
  padding:16px;box-shadow:0 30px 54px -30px rgba(23,24,33,.7);
  display:none;
}
.service-panel.open{display:block;animation:panelIn .22s ease;}
@keyframes panelIn{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:translateY(0);}}
.service-panel img{width:100%;max-width:150px;margin:0 auto 10px;border-radius:10px;background:#f7f2ee;}
.service-panel p{margin:0 0 6px;font-size:13px;color:var(--ink-2);text-align:center;line-height:1.6;}
.service-panel p:last-child{margin-bottom:0;font-weight:700;color:var(--ink);}
.back-top{
  position:fixed;right:18px;bottom:22px;z-index:80;
  width:44px;height:44px;border-radius:50%;border:1px solid rgba(23,24,33,.14);
  background:#fff;color:var(--ink);font-family:inherit;font-size:12.5px;font-weight:800;
  cursor:pointer;display:none;align-items:center;justify-content:center;
  box-shadow:0 16px 30px -20px rgba(23,24,33,.9);
  transition:transform .18s ease,color .2s ease,border-color .2s ease;
}
.back-top.show{display:flex;}
.back-top:hover{transform:translateY(-3px);color:#c22a1f;border-color:rgba(245,50,43,.5);}

/* reveal */
html.js-reveal .reveal{opacity:0;transform:translateY(18px);}
html.js-reveal .reveal.is-visible{
  opacity:1;transform:none;
  transition:opacity .68s cubic-bezier(.2,.7,.3,1),transform .68s cubic-bezier(.2,.7,.3,1);
}
@media (prefers-reduced-motion:reduce){
  html.js-reveal .reveal{opacity:1;transform:none;}
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
}

/* responsive */
@media (max-width:1024px){
  .nav-links a{padding:8px 8px;font-size:14px;}
  .hero-grid{gap:36px;}
  .stat-strip{grid-template-columns:repeat(2,1fr);gap:18px;}
  .stat-item:nth-child(3){border-left-color:transparent;padding-left:0;}
  .steps{grid-template-columns:repeat(3,1fr);}
  .compare-top{grid-template-columns:1fr;}
}
@media (max-width:980px){
  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;
    background:#fff;border:1px solid rgba(23,24,33,.1);border-radius:0 0 16px 16px;
    padding:8px 20px 16px;display:none;
    box-shadow:0 28px 44px -30px rgba(23,24,33,.6);
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:12px 4px;border-bottom:1px dashed rgba(23,24,33,.09);border-radius:0;}
  .hero{padding:44px 0 12px;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-visual{order:2;}
  .hv-card-b,.hv-card-c{margin-left:0;}
  .about-grid{grid-template-columns:1fr;}
  .flow-grid{grid-template-columns:1fr;}
  .token-grid{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .faq-wrap{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr 1fr;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:720px){
  .section{padding:52px 0;}
  .steps{grid-template-columns:1fr;}
  .mini-grid{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .lead-form{padding:22px;}
  .contact-card{padding:22px;}
  .join{padding:36px 0;}
  .join-inner{flex-direction:column;align-items:flex-start;}
  .contact-list b{flex:0 0 78px;}
  .stat-item{border-left:3px solid rgba(245,50,43,.35);padding-left:12px;}
  .stat-item:first-child,.stat-item:nth-child(3){border-left-color:rgba(245,50,43,.35);padding-left:12px;}
}
@media (max-width:560px){
  .brand-text{display:none;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 auto;padding:13px 18px;font-size:14.5px;}
  .float-service{right:12px;bottom:80px;}
  .back-top{right:12px;bottom:18px;}
  .qr-box{flex-direction:column;align-items:flex-start;}
  .footer-top{grid-template-columns:1fr;}
}