*{margin:0;padding:0;box-sizing:border-box}
:root{
  --ink:#141b2d;
  --ink-2:#3b4560;
  --ink-3:#6b7690;
  --paper:#fdfbf7;
  --line:#e7e2d8;
  --blue:#1f4bef;
  --blue-deep:#0f2ea8;
  --lime:#c6f24e;
  --coral:#ff5a3c;
  --amber:#ffb020;
  --card:#ffffff;
  --radius:18px;
  --shadow:0 12px 34px rgba(20,27,45,.09);
  --shadow-lg:0 22px 54px rgba(20,27,45,.16);
}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  color:var(--ink);
  background:
    radial-gradient(1100px 520px at 88% -6%, rgba(198,242,78,.42), transparent 62%),
    radial-gradient(980px 500px at 0% 4%, rgba(31,75,239,.14), transparent 60%),
    linear-gradient(180deg,#fdfbf7 0%,#f7f5ef 46%,#fbf9f4 100%);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 22px;
}
.section{padding:74px 0}
.section-tight{padding:56px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--blue-deep);
  background:rgba(31,75,239,.08);
  border:1px solid rgba(31,75,239,.16);
  padding:6px 14px;border-radius:999px;
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--coral)}
h2.sec-title{
  font-size:clamp(24px,3.2vw,36px);
  line-height:1.3;
  letter-spacing:-.5px;
  margin:16px 0 12px;
  font-weight:800;
}
.sec-desc{color:var(--ink-2);font-size:16px;max-width:680px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;
  font-weight:700;font-size:15px;
  border:2px solid transparent;
  cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px) scale(.99)}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 12px 26px rgba(31,75,239,.28)}
.btn-primary:hover{background:var(--blue-deep);transform:translateY(-3px);box-shadow:0 18px 34px rgba(31,75,239,.34)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000;transform:translateY(-3px)}
.btn-lime{background:var(--lime);color:#152100;border-color:#a8d532}
.btn-lime:hover{background:#d3ff5f;transform:translateY(-3px);box-shadow:0 16px 30px rgba(160,200,40,.32)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-3px)}

/* NAV */
.site-header{
  position:sticky;top:0;z-index:120;
  backdrop-filter:blur(14px);
  background:rgba(253,251,247,.9);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;min-height:72px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.ai-page-logo{width:132px;max-width:100%;height:auto}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:15px;letter-spacing:.02em}
.brand-text span{font-size:11px;color:var(--ink-3);letter-spacing:.16em}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap}
.nav-links a{
  font-size:14px;font-weight:600;color:var(--ink-2);
  padding:8px 11px;border-radius:9px;
  transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:var(--blue);background:rgba(31,75,239,.07)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-actions .btn{padding:10px 20px;font-size:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1.5px solid var(--line);background:#fff;
  align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-menu{
  display:none;flex-direction:column;gap:2px;
  border-top:1px solid var(--line);
  padding:12px 0 18px;
}
.mobile-menu a{
  padding:11px 12px;border-radius:10px;font-weight:600;font-size:15px;color:var(--ink-2);
}
.mobile-menu a:hover{background:rgba(31,75,239,.07);color:var(--blue)}
.mobile-menu.open{display:flex}

/* HERO */
.hero{position:relative;overflow:hidden;padding:66px 0 78px}
.hero-grid{
  display:grid;grid-template-columns:1.12fr .88fr;
  gap:52px;align-items:center;
}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.16;letter-spacing:-1.4px;
  font-weight:900;margin:20px 0 20px;
}
.hero h1 em{
  font-style:normal;position:relative;display:inline-block;
  color:var(--blue);
}
.hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:10px;
  background:var(--lime);z-index:-1;border-radius:4px;opacity:.85;
}
.hero p.lead{font-size:17px;color:var(--ink-2);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  font-size:13px;font-weight:600;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);
  padding:7px 14px;border-radius:999px;
  box-shadow:0 4px 12px rgba(20,27,45,.04);
}
.hero-visual{position:relative;min-height:380px}
.orbit-card{
  position:relative;background:#fff;border-radius:24px;
  border:1px solid var(--line);box-shadow:var(--shadow);
  padding:22px;display:flex;flex-direction:column;gap:14px;
}
.orbit-card .oc-head{display:flex;align-items:center;justify-content:space-between}
.oc-head strong{font-size:15px}
.oc-head .dot{width:9px;height:9px;border-radius:50%;background:var(--coral);box-shadow:0 0 0 5px rgba(255,90,60,.14)}
.stat-row{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.stat-cell{
  background:linear-gradient(150deg,#fbfaff,#f3f1ea);
  border:1px solid var(--line);border-radius:14px;padding:14px;
}
.stat-cell b{display:block;font-size:22px;letter-spacing:-.5px;color:var(--blue-deep)}
.stat-cell span{font-size:12px;color:var(--ink-3);font-weight:600}
.float-tag{
  position:absolute;background:var(--lime);color:#152100;
  font-size:13px;font-weight:800;padding:8px 14px;border-radius:12px;
  box-shadow:0 12px 24px rgba(140,180,30,.32);
  right:-6px;top:-16px;transform:rotate(4deg);
  animation:floatY 4.6s ease-in-out infinite;
}
.float-tag.alt{
  background:var(--ink);color:var(--lime);left:-10px;top:auto;bottom:-14px;right:auto;
  transform:rotate(-4deg);animation-delay:1.4s;
}
@keyframes floatY{0%,100%{transform:translateY(0) rotate(4deg)}50%{transform:translateY(-10px) rotate(4deg)}}

/* Marquee strip */
.model-strip{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:rgba(255,255,255,.66);
  padding:16px 0;overflow:hidden;
}
.strip-track{display:flex;gap:14px;width:max-content;animation:scrollX 34s linear infinite}
.strip-track span{
  font-size:13px;font-weight:700;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);
  padding:8px 16px;border-radius:999px;white-space:nowrap;
}
@keyframes scrollX{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* METRICS */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.metric{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease;
}
.metric:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.metric b{display:block;font-size:clamp(24px,2.8vw,32px);letter-spacing:-1px;color:var(--blue-deep)}
.metric span{font-size:13px;color:var(--ink-3);font-weight:600}

/* ABOUT */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.about-text p{color:var(--ink-2);margin-top:14px;font-size:15.5px}
.about-list{display:grid;gap:12px;margin-top:22px}
.about-item{
  display:flex;gap:12px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px;
}
.about-item i{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;
  background:var(--lime);color:#152100;font-style:normal;font-weight:800;
  display:flex;align-items:center;justify-content:center;font-size:13px;
}
.about-item strong{display:block;font-size:14.5px}
.about-item span{font-size:13.5px;color:var(--ink-3)}

/* SERVICES */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:38px}
.srv-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px;box-shadow:0 8px 20px rgba(20,27,45,.05);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;gap:10px;
}
.srv-card:hover{transform:translateY(-7px);box-shadow:var(--shadow-lg);border-color:rgba(31,75,239,.34)}
.srv-ico{
  width:44px;height:44px;border-radius:13px;
  background:linear-gradient(140deg,var(--blue),#5b7bff);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:900;font-size:17px;
}
.srv-card:nth-child(3n+2) .srv-ico{background:linear-gradient(140deg,#ff7a3c,#ffb020)}
.srv-card:nth-child(3n+3) .srv-ico{background:linear-gradient(140deg,#8ec22a,#c6f24e);color:#152100}
.srv-card h3{font-size:17px;letter-spacing:-.2px}
.srv-card p{font-size:14px;color:var(--ink-2);flex:1}

/* FLOW */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:38px;counter-reset:step}
.flow-item{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 20px;box-shadow:0 8px 20px rgba(20,27,45,.05);
}
.flow-item::before{
  counter-increment:step;content:"0" counter(step);
  font-size:13px;font-weight:900;letter-spacing:.1em;color:var(--coral);
}
.flow-item h3{font-size:16px;margin:10px 0 8px}
.flow-item p{font-size:13.5px;color:var(--ink-3)}

/* INDUSTRY */
.ind-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:36px}
.ind-card{
  display:flex;gap:16px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;transition:transform .25s ease,box-shadow .25s ease;
}
.ind-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.ind-badge{
  flex-shrink:0;width:46px;height:46px;border-radius:14px;
  background:rgba(31,75,239,.1);color:var(--blue-deep);
  display:flex;align-items:center;justify-content:center;font-weight:900;font-size:15px;
}
.ind-card h3{font-size:16px;margin-bottom:6px}
.ind-card p{font-size:14px;color:var(--ink-2)}

/* NETWORK */
.net-wrap{
  background:linear-gradient(135deg,#141b2d,#1f2c52 62%,#243a78);
  border-radius:26px;padding:46px 40px;color:#fff;
  box-shadow:var(--shadow-lg);position:relative;overflow:hidden;
}
.net-wrap::after{
  content:"";position:absolute;width:320px;height:320px;border-radius:50%;
  right:-90px;top:-120px;background:radial-gradient(circle,rgba(198,242,78,.4),transparent 70%);
}
.net-wrap h2{color:#fff;font-size:clamp(22px,3vw,32px);letter-spacing:-.5px;margin:14px 0 12px}
.net-wrap .eyebrow{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.24);color:#d8e3ff}
.net-wrap p{color:#c3ccea;max-width:640px;font-size:15px;position:relative;z-index:1}
.net-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:30px;position:relative;z-index:1}
.net-item{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  border-radius:14px;padding:18px;
}
.net-item strong{display:block;font-size:15px;color:var(--lime)}
.net-item span{font-size:13px;color:#c3ccea}

/* COMPARE */
.compare-wrap{margin-top:36px;overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
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:#f4f2ea;font-size:13.5px;letter-spacing:.04em;color:var(--ink-2)}
table.compare thead th.hl{background:var(--blue);color:#fff;font-weight:800}
table.compare tbody tr:last-child td{border-bottom:none}
table.compare tbody tr:hover{background:#fbfaf4}
table.compare td.hl{background:rgba(31,75,239,.05);font-weight:700;color:var(--blue-deep)}
.score-band{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px;
}
.score-cell{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;text-align:center;box-shadow:0 8px 20px rgba(20,27,45,.05);
}
.score-cell b{display:block;font-size:clamp(26px,3.4vw,38px);color:var(--blue-deep);letter-spacing:-1px}
.score-cell span{font-size:13.5px;color:var(--ink-3);font-weight:600}
.stars{color:#ffb020;letter-spacing:3px;font-size:18px;display:block;margin-bottom:4px}

/* TOKEN */
.token-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:36px}
.token-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:0 8px 20px rgba(20,27,45,.05);
  display:flex;flex-direction:column;gap:10px;transition:transform .25s ease;
}
.token-card:hover{transform:translateY(-5px)}
.token-card .tk-tag{font-size:12px;font-weight:800;letter-spacing:.1em;color:var(--coral)}
.token-card h3{font-size:17px}
.token-card .tk-price{font-size:24px;font-weight:900;color:var(--blue-deep);letter-spacing:-.5px}
.token-card p{font-size:13.5px;color:var(--ink-3)}
.token-note{font-size:13px;color:var(--ink-3);margin-top:16px}

/* CASES */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:0 8px 22px rgba(20,27,45,.06);
  transition:transform .25s ease,box-shadow .25s ease;
  display:flex;flex-direction:column;
}
.case-card:hover{transform:translateY(-7px);box-shadow:var(--shadow-lg)}
.case-media{aspect-ratio:16/10;overflow:hidden;background:#f2f0e9}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.case-card:hover .case-media img{transform:scale(1.05)}
.case-body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
.case-body h3{font-size:16px}
.case-body p{font-size:13.5px;color:var(--ink-2);flex:1}
.case-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:4px}
.case-tags span{font-size:11.5px;font-weight:700;color:var(--blue-deep);background:rgba(31,75,239,.08);padding:4px 10px;border-radius:999px}
.square-media{border-radius:14px;overflow:hidden;border:1px solid var(--line);margin-top:26px;background:#fff;padding:12px}
.square-media img{width:100%}

/* REVIEWS */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:36px}
.review-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:0 8px 20px rgba(20,27,45,.05);
  display:flex;flex-direction:column;gap:12px;transition:transform .25s ease,box-shadow .25s ease;
}
.review-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.review-top{display:flex;align-items:center;gap:12px}
.avatar{
  width:42px;height:42px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-weight:900;color:#fff;background:linear-gradient(140deg,var(--blue),#6d8bff);
}
.review-card:nth-child(3n+2) .avatar{background:linear-gradient(140deg,#ff7a3c,#ffb020)}
.review-card:nth-child(3n+3) .avatar{background:linear-gradient(140deg,#8ec22a,#c6f24e);color:#152100}
.review-top strong{display:block;font-size:14.5px}
.review-top span{font-size:12.5px;color:var(--ink-3)}
.review-card p{font-size:14px;color:var(--ink-2);flex:1}
.review-stars{color:#ffb020;letter-spacing:2px;font-size:14px}

/* FAQ */
.faq-list{margin-top:34px;display:grid;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  overflow:hidden;transition:box-shadow .25s ease,border-color .25s ease;
}
.faq-item.active{border-color:rgba(31,75,239,.35);box-shadow:0 12px 28px rgba(31,75,239,.1)}
.faq-q{
  width:100%;text-align:left;background:none;border:none;cursor:pointer;
  padding:18px 22px;font-size:15px;font-weight:700;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  font-family:inherit;
}
.faq-q .plus{
  flex-shrink:0;width:24px;height:24px;border-radius:50%;
  background:rgba(31,75,239,.1);color:var(--blue-deep);
  display:flex;align-items:center;justify-content:center;font-size:16px;
  transition:transform .3s ease,background .3s ease,color .3s ease;
}
.faq-item.active .faq-q .plus{transform:rotate(45deg);background:var(--blue);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 22px 20px;font-size:14px;color:var(--ink-2)}

/* FORM */
.form-shell{
  display:grid;grid-template-columns:1fr 1fr;gap:38px;
  background:#fff;border:1px solid var(--line);border-radius:26px;
  padding:40px;box-shadow:var(--shadow-lg);margin-top:36px;
}
.form-shell h2{font-size:clamp(22px,2.8vw,30px);letter-spacing:-.5px;margin:14px 0 10px}
.form-shell p.fdesc{font-size:14.5px;color:var(--ink-2)}
.contact-list{margin-top:22px;display:grid;gap:12px}
.contact-row{
  display:flex;gap:12px;align-items:flex-start;
  background:#fbfaf4;border:1px solid var(--line);border-radius:12px;padding:13px 15px;
}
.contact-row strong{display:block;font-size:13.5px}
.contact-row span{font-size:13px;color:var(--ink-3);word-break:break-all}
.kefu-box{margin-top:18px;display:flex;gap:16px;align-items:center;background:#fbfaf4;border:1px dashed var(--line);border-radius:14px;padding:16px}
.kefu-box img{width:104px;border-radius:10px;border:1px solid var(--line)}
.kefu-box div strong{display:block;font-size:14px;margin-bottom:4px}
.kefu-box div span{font-size:12.5px;color:var(--ink-3)}
form.need-form{display:grid;gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:13px;font-weight:700;color:var(--ink-2)}
.field input,.field select,.field textarea{
  width:100%;font-family:inherit;font-size:14.5px;color:var(--ink);
  background:#fbfaf4;border:1.5px solid var(--line);border-radius:11px;
  padding:12px 14px;transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--blue);background:#fff;box-shadow:0 0 0 4px rgba(31,75,239,.1);
}
.field textarea{resize:vertical;min-height:110px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-tip{font-size:12.5px;color:var(--ink-3)}

/* ARTICLES */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:36px}
.article-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;display:flex;flex-direction:column;gap:10px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.article-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.article-card .a-tag{font-size:12px;font-weight:800;color:var(--coral);letter-spacing:.08em}
.article-card h3{font-size:15.5px;line-height:1.5}
.article-card p{font-size:13.5px;color:var(--ink-3);flex:1}
.article-card a.more{font-size:13.5px;font-weight:800;color:var(--blue)}

/* ENCY / NEWS */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start;margin-top:36px}
.info-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:0 8px 20px rgba(20,27,45,.05)}
.info-panel h3{font-size:18px;margin-bottom:14px}
.info-panel ul{display:grid;gap:12px}
.info-panel li{display:flex;gap:10px;font-size:14px;color:var(--ink-2)}
.info-panel li::before{content:"◆";color:var(--blue);font-size:11px;line-height:2}
.news-list{display:grid;gap:10px;margin-top:4px}
.news-item{
  display:flex;justify-content:space-between;gap:14px;align-items:flex-start;
  padding:13px 15px;border:1px solid var(--line);border-radius:12px;background:#fbfaf4;
  transition:background .2s ease,transform .2s ease;
}
.news-item:hover{background:#fff;transform:translateX(4px)}
.news-item strong{font-size:14px;display:block}
.news-item span{font-size:12.5px;color:var(--ink-3);white-space:nowrap}

/* JOIN */
.join-band{
  background:linear-gradient(135deg,rgba(198,242,78,.32),rgba(31,75,239,.12));
  border:1px solid var(--line);border-radius:26px;padding:42px 38px;
  display:grid;grid-template-columns:1.3fr .7fr;gap:30px;align-items:center;
}
.join-band h2{font-size:clamp(22px,3vw,30px);letter-spacing:-.6px;margin:14px 0 10px}
.join-band p{font-size:15px;color:var(--ink-2);max-width:600px}
.join-actions{display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.join-actions .btn{width:100%;max-width:260px}

/* TAG CLOUD */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.tag-cloud span{
  font-size:13px;font-weight:600;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);padding:7px 14px;border-radius:999px;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.tag-cloud span:hover{background:var(--lime);color:#152100;transform:translateY(-3px);border-color:#b6e03d}

/* FOOTER */
.site-footer{
  margin-top:70px;
  background:#131a2b;
  color:#d8dfef;
  border-top:4px solid var(--lime);
}
.footer-main{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:34px;padding:52px 0 34px;
}
.footer-brand strong{font-size:17px;color:#fff;display:block;margin-bottom:10px}
.footer-brand p{font-size:13.5px;color:#a7b2cc;line-height:1.8}
.footer-brand .f-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.footer-brand .f-links a{
  font-size:12.5px;font-weight:700;color:#0f1c04;background:var(--lime);
  padding:6px 12px;border-radius:999px;transition:transform .2s ease;
}
.footer-brand .f-links a:hover{transform:translateY(-2px)}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.04em}
.footer-col ul{display:grid;gap:9px}
.footer-col li,.footer-col li a{font-size:13.5px;color:#a7b2cc}
.footer-col li a{transition:color .2s ease}
.footer-col li a:hover{color:var(--lime)}
.friend-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.friend-links a{
  font-size:12.5px;color:#c3ccea;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);padding:5px 11px;border-radius:8px;
  transition:background .2s ease,color .2s ease;
}
.friend-links a:hover{background:var(--lime);color:#0f1c04}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:18px 0;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;align-items:center;
  font-size:12.5px;color:#93a0bd;
}
.footer-bottom a{color:#93a0bd}
.footer-bottom a:hover{color:var(--lime)}

/* FLOAT */
.back-top,.float-kefu{
  position:fixed;right:20px;z-index:130;
  width:50px;height:50px;border-radius:50%;border:none;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;color:#fff;
  box-shadow:0 12px 26px rgba(20,27,45,.24);
  transition:transform .22s ease,opacity .22s ease;
}
.float-kefu{bottom:84px;background:var(--blue)}
.back-top{bottom:20px;background:var(--ink);opacity:0;pointer-events:none}
.back-top.show{opacity:1;pointer-events:auto}
.float-kefu:hover,.back-top:hover{transform:translateY(-4px)}
.kefu-pop{
  position:fixed;right:20px;bottom:144px;z-index:135;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:16px;box-shadow:var(--shadow-lg);width:220px;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
}
.kefu-pop.show{opacity:1;visibility:visible;transform:translateY(0)}
.kefu-pop img{width:100%;border-radius:10px;border:1px solid var(--line)}
.kefu-pop p{font-size:12.5px;color:var(--ink-2);margin-top:8px;text-align:center}

/* REVEAL */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

/* RESPONSIVE */
@media (max-width:1024px){
  .nav-links{display:none}
  .nav-actions .btn{display:none}
  .nav-toggle{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .hero-visual{min-height:auto;max-width:520px}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr;gap:30px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .net-grid{grid-template-columns:repeat(2,1fr)}
  .token-grid{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .article-grid{grid-template-columns:repeat(2,1fr)}
  .form-shell{grid-template-columns:1fr;padding:30px}
  .two-col{grid-template-columns:1fr}
  .join-band{grid-template-columns:1fr;padding:32px 26px}
  .footer-main{grid-template-columns:repeat(2,1fr);gap:28px}
  .score-band{grid-template-columns:1fr}
}
@media (max-width:720px){
  .section{padding:52px 0}
  .section-tight{padding:40px 0}
  .hero{padding:44px 0 56px}
  .hero-cta{gap:10px}
  .hero-cta .btn{width:100%}
  .metrics{grid-template-columns:1fr}
  .card-grid,.flow,.ind-grid,.net-grid,.token-grid,.case-grid,.review-grid,.article-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .form-shell{padding:24px 20px}
  .join-actions .btn{max-width:100%}
  .footer-main{grid-template-columns:1fr;padding:40px 0 26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .float-kefu,.back-top{right:14px;width:46px;height:46px}
  .kefu-pop{right:14px;width:200px}
  .net-wrap{padding:32px 22px}
  .brand-text span{display:none}
  .ai-page-logo{width:112px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}