/* ==========================================================================
   corallink — settlement infrastructure
   Design system: deep-space dark UI, coral/teal duotone, engineered grid
   ========================================================================== */

:root{
  /* surfaces */
  --bg:#05070d;
  --bg-2:#080b14;
  --panel:#0b101c;
  --panel-2:#0e1422;
  --line:#1a2337;
  --line-soft:#141b2b;

  /* type */
  --ink:#e9eff9;
  --ink-2:#b6c2d6;
  --muted:#7c8ba6;
  --dim:#54607a;

  /* brand */
  --coral:#ff5f57;
  --coral-2:#ff8a5b;
  --rose:#e8385f;
  --teal:#2be3c6;
  --teal-2:#7cf7df;
  --cyan:#22a2c9;

  --grad-brand:linear-gradient(120deg,#ff8a5b 0%,#ff5f57 45%,#e8385f 100%);
  --grad-cool:linear-gradient(120deg,#7cf7df 0%,#2be3c6 50%,#22a2c9 100%);
  --grad-mix:linear-gradient(110deg,#ff8a5b 0%,#ff5f57 38%,#2be3c6 100%);

  --radius:14px;
  --radius-lg:22px;
  --maxw:1240px;
  --pad:clamp(20px,5vw,48px);

  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
  --sans:"Inter","Helvetica Neue","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;

  --shadow:0 24px 60px -28px rgba(0,0,0,.9);
  --ease:cubic-bezier(.22,.75,.28,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.65;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.15;letter-spacing:-.025em;font-weight:650}
p{margin:0}
::selection{background:rgba(255,95,87,.32);color:#fff}

/* ---------- ambient background ---------- */
.bg-fx{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.bg-fx::before{
  content:"";position:absolute;inset:-2px;
  background-image:linear-gradient(var(--line-soft) 1px,transparent 1px),
                   linear-gradient(90deg,var(--line-soft) 1px,transparent 1px);
  background-size:72px 72px;
  mask-image:radial-gradient(ellipse 110% 70% at 50% 0%,#000 20%,transparent 78%);
  opacity:.75;
}
.orb{position:absolute;border-radius:50%;filter:blur(90px);opacity:.28}
.orb.a{width:620px;height:620px;top:-260px;left:-120px;background:radial-gradient(circle,#ff5f57,transparent 65%)}
.orb.b{width:560px;height:560px;top:-180px;right:-160px;background:radial-gradient(circle,#22a2c9,transparent 65%)}
.orb.c{width:700px;height:700px;top:52%;left:38%;background:radial-gradient(circle,#2be3c6,transparent 68%);opacity:.14}

/* ---------- layout ---------- */
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad);position:relative;z-index:1}
section{position:relative;z-index:1}
.section{padding-block:clamp(72px,9vw,124px)}
.section--tight{padding-block:clamp(56px,6vw,84px)}
.rule{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent)}

/* ---------- shared bits ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--mono);font-size:11.5px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--muted);margin-bottom:20px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--grad-brand)}
.eyebrow b{color:var(--teal);font-weight:500}

.h-xl{font-size:clamp(2.35rem,5.4vw,4.15rem);letter-spacing:-.038em;line-height:1.03}
.h-lg{font-size:clamp(1.85rem,3.6vw,2.85rem);letter-spacing:-.03em}
.h-md{font-size:clamp(1.25rem,2vw,1.5rem)}
.lede{color:var(--ink-2);font-size:clamp(1rem,1.25vw,1.115rem);max-width:62ch}
.muted{color:var(--muted)}
.grad-text{background:var(--grad-mix);-webkit-background-clip:text;background-clip:text;color:transparent}
.mono{font-family:var(--mono)}

.sec-head{display:flex;flex-wrap:wrap;gap:28px;align-items:flex-end;justify-content:space-between;margin-bottom:clamp(36px,4.5vw,58px)}
.sec-head .lede{max-width:46ch}

/* ---------- buttons ---------- */
.btn{
  --bd:var(--line);
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 22px;border-radius:100px;border:1px solid var(--bd);
  font-size:.925rem;font-weight:560;cursor:pointer;background:transparent;
  transition:.28s var(--ease);white-space:nowrap;
}
.btn svg{width:15px;height:15px;transition:transform .28s var(--ease)}
.btn:hover svg{transform:translateX(3px)}
.btn--primary{
  border-color:transparent;color:#160a08;font-weight:650;
  background:var(--grad-brand);box-shadow:0 12px 34px -14px rgba(255,95,87,.85);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 18px 40px -14px rgba(255,95,87,.95)}
.btn--ghost{color:var(--ink);background:rgba(255,255,255,.02)}
.btn--ghost:hover{border-color:#31405c;background:rgba(255,255,255,.05)}
.btn--sm{padding:9px 17px;font-size:.85rem}

/* ---------- header ---------- */
.hdr{
  position:sticky;top:0;z-index:60;
  border-bottom:1px solid transparent;transition:.3s var(--ease);
}
.hdr.is-stuck{
  background:rgba(5,7,13,.82);backdrop-filter:blur(16px) saturate(150%);
  -webkit-backdrop-filter:blur(16px) saturate(150%);border-bottom-color:var(--line);
}
.hdr__in{display:flex;align-items:center;gap:26px;height:74px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand svg{width:34px;height:34px}
.brand__txt{font-size:1.18rem;font-weight:700;letter-spacing:-.03em}
.brand__txt i{font-style:normal;color:var(--teal)}
.nav{display:flex;gap:4px;margin-inline-start:auto}
.nav a{
  position:relative;padding:8px 14px;border-radius:9px;font-size:.925rem;
  color:var(--ink-2);transition:.22s var(--ease);
}
.nav a:hover{color:var(--ink);background:rgba(255,255,255,.045)}
.nav a.is-active{color:var(--ink)}
.nav a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--grad-brand);
}
.hdr__act{display:flex;align-items:center;gap:10px}
.lang{
  display:flex;border:1px solid var(--line);border-radius:100px;overflow:hidden;background:rgba(255,255,255,.02);
}
.lang button{
  padding:6px 12px;background:none;border:0;cursor:pointer;font-family:var(--mono);
  font-size:11px;letter-spacing:.1em;color:var(--dim);transition:.22s var(--ease);
}
.lang button.is-on{background:rgba(255,95,87,.14);color:var(--coral-2)}
.burger{display:none;width:42px;height:38px;border:1px solid var(--line);border-radius:10px;background:none;cursor:pointer;align-items:center;justify-content:center}
.burger span{display:block;width:17px;height:1.5px;background:var(--ink);position:relative;transition:.25s var(--ease)}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:17px;height:1.5px;background:var(--ink);transition:.25s var(--ease)}
.burger span::before{top:-5.5px}.burger span::after{top:5.5px}
.burger.is-on span{background:transparent}
.burger.is-on span::before{top:0;transform:rotate(45deg)}
.burger.is-on span::after{top:0;transform:rotate(-45deg)}

/* ---------- hero ---------- */
.hero{padding-top:clamp(48px,7vw,92px);padding-bottom:clamp(56px,7vw,96px);overflow:hidden}
.hero__grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(36px,5vw,72px);align-items:center}
.hero h1{margin-bottom:24px}
.hero .lede{margin-bottom:34px}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:38px}
.hero__facts{display:flex;flex-wrap:wrap;gap:10px 26px;font-family:var(--mono);font-size:12px;color:var(--muted)}
.hero__facts span{display:flex;align-items:center;gap:8px}
.dot{width:6px;height:6px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 4px rgba(43,227,198,.14)}
.dot--coral{background:var(--coral);box-shadow:0 0 0 4px rgba(255,95,87,.14)}

.hero__art{position:relative;aspect-ratio:1/1;max-width:560px;margin-inline:auto;width:100%}
.hero__art canvas{position:absolute;inset:0;width:100%;height:100%}
.hero__ring{
  position:absolute;inset:8%;border:1px solid var(--line);border-radius:50%;
  animation:spin 46s linear infinite;
}
.hero__ring::after{content:"";position:absolute;top:-4px;left:50%;width:7px;height:7px;margin-left:-3.5px;border-radius:50%;background:var(--coral);box-shadow:0 0 14px 2px rgba(255,95,87,.8)}
.hero__ring.r2{inset:20%;animation-duration:32s;animation-direction:reverse;border-color:var(--line-soft)}
.hero__ring.r2::after{background:var(--teal);box-shadow:0 0 14px 2px rgba(43,227,198,.8)}
@keyframes spin{to{transform:rotate(360deg)}}
.hero__badge{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  display:grid;place-items:center;gap:4px;width:150px;height:150px;border-radius:50%;
  background:radial-gradient(circle at 50% 35%,rgba(255,95,87,.16),rgba(5,7,13,.9) 68%);
  border:1px solid var(--line);text-align:center;backdrop-filter:blur(6px);
}
.hero__badge b{font-size:1.6rem;letter-spacing:-.03em;display:block}
.hero__badge span{font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--muted);text-transform:uppercase}

/* ---------- ticker ---------- */
.ticker{border-block:1px solid var(--line);background:rgba(8,11,20,.7);overflow:hidden;position:relative;z-index:1}
.ticker__track{display:flex;gap:0;width:max-content;animation:slide 42s linear infinite}
.ticker:hover .ticker__track{animation-play-state:paused}
@keyframes slide{to{transform:translateX(-50%)}}
.tick{
  display:flex;align-items:center;gap:12px;padding:14px 30px;border-right:1px solid var(--line-soft);
  font-family:var(--mono);font-size:12.5px;color:var(--ink-2);white-space:nowrap;
}
.tick i{font-style:normal;color:var(--dim)}
.tick b{font-weight:500;color:var(--teal)}
.tick b.dn{color:var(--coral)}

/* ---------- stat band ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden}
.stat{background:var(--panel);padding:clamp(24px,3vw,34px);position:relative}
.stat::after{content:"";position:absolute;top:0;left:0;width:100%;height:1px;background:var(--grad-brand);opacity:0;transition:.35s var(--ease)}
.stat:hover::after{opacity:.85}
.stat b{display:block;font-size:clamp(1.9rem,3.3vw,2.65rem);letter-spacing:-.04em;line-height:1;margin-bottom:10px;font-weight:650}
.stat b em{font-style:normal;background:var(--grad-mix);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}

/* ---------- cards ---------- */
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{
  position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:clamp(24px,2.6vw,32px);overflow:hidden;transition:.35s var(--ease);
}
.card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;
  background:var(--grad-mix);opacity:0;transition:.35s var(--ease);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;
}
.card:hover{transform:translateY(-4px);background:var(--panel-2)}
.card:hover::before{opacity:.55}
.card__ico{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:20px;
  background:rgba(255,95,87,.09);border:1px solid rgba(255,95,87,.22);color:var(--coral-2);
}
.card__ico svg{width:21px;height:21px}
.card--cool .card__ico{background:rgba(43,227,198,.08);border-color:rgba(43,227,198,.22);color:var(--teal)}
.card h3{font-size:1.16rem;margin-bottom:11px}
.card p{color:var(--muted);font-size:.94rem}
.card__no{
  position:absolute;top:20px;right:24px;font-family:var(--mono);font-size:11px;color:var(--dim);letter-spacing:.1em;
}
.card__list{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:9px}
.card__list li{position:relative;padding-left:18px;font-size:.885rem;color:var(--ink-2)}
.card__list li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--grad-brand)}

/* ---------- split feature ---------- */
.split{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(32px,5vw,68px);align-items:center}
.panel{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:clamp(20px,2.4vw,28px);box-shadow:var(--shadow);
}
.panel__bar{display:flex;align-items:center;gap:7px;padding-bottom:16px;margin-bottom:18px;border-bottom:1px solid var(--line-soft)}
.panel__bar i{width:9px;height:9px;border-radius:50%;background:#212b40;display:block}
.panel__bar i:first-child{background:rgba(255,95,87,.55)}
.panel__bar span{margin-left:auto;font-family:var(--mono);font-size:11px;color:var(--dim)}

.flow{display:grid;gap:14px}
.flow__row{
  display:flex;align-items:center;gap:14px;padding:14px 16px;border:1px solid var(--line-soft);
  border-radius:12px;background:rgba(255,255,255,.015);
}
.flow__row b{font-size:.9rem;font-weight:560}
.flow__row small{display:block;color:var(--dim);font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase}
.flow__pill{
  margin-left:auto;font-family:var(--mono);font-size:10.5px;padding:4px 10px;border-radius:100px;
  border:1px solid rgba(43,227,198,.28);color:var(--teal);background:rgba(43,227,198,.07);
}
.flow__ico{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;background:rgba(255,255,255,.04);color:var(--ink-2);flex-shrink:0}
.flow__ico svg{width:16px;height:16px}
.flow__link{height:16px;margin-left:31px;width:1px;background:linear-gradient(var(--coral),transparent);opacity:.6}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:s}
.step{position:relative;padding-top:34px}
.step::before{
  counter-increment:s;content:"0" counter(s);
  font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--coral-2);
}
.step::after{content:"";position:absolute;top:26px;left:0;right:0;height:1px;background:var(--line)}
.step.is-on::after{background:var(--grad-brand)}
.step h3{font-size:1.1rem;margin:14px 0 10px}
.step p{color:var(--muted);font-size:.92rem}

/* ---------- code block ---------- */
.code{background:#070a12;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden}
.code__tabs{display:flex;border-bottom:1px solid var(--line);background:rgba(255,255,255,.015);overflow-x:auto}
.code__tabs button{
  padding:12px 18px;background:none;border:0;border-bottom:2px solid transparent;cursor:pointer;
  font-family:var(--mono);font-size:12px;color:var(--dim);transition:.22s var(--ease);white-space:nowrap;
}
.code__tabs button.is-on{color:var(--ink);border-bottom-color:var(--coral)}
.code pre{margin:0;padding:22px 24px;overflow-x:auto;font-family:var(--mono);font-size:12.6px;line-height:1.85;color:#c6d2e6}
.code pre[hidden]{display:none}
.tk-c{color:var(--dim)}
.tk-k{color:#ff8a5b}
.tk-s{color:var(--teal)}
.tk-n{color:#8fb8ff}
.tk-p{color:#6f7d97}

/* ---------- compliance / marquee chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:8px 15px;border-radius:100px;
  border:1px solid var(--line);background:rgba(255,255,255,.02);
  font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;color:var(--ink-2);
}
.chip::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--teal)}

/* ---------- coverage map ---------- */
.map{position:relative;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--panel);padding:clamp(18px,2.4vw,30px);overflow:hidden}
.map svg{width:100%;height:auto}
.map__legend{display:flex;flex-wrap:wrap;gap:18px;margin-top:18px;font-family:var(--mono);font-size:11.5px;color:var(--muted)}
.map__legend span{display:flex;align-items:center;gap:8px}

/* ---------- cta band ---------- */
.cta{
  position:relative;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  padding:clamp(38px,5.5vw,72px);text-align:center;
  background:radial-gradient(120% 130% at 50% 0%,rgba(255,95,87,.14),rgba(11,16,28,.4) 55%),var(--panel);
}
.cta h2{margin-bottom:16px}
.cta .lede{margin:0 auto 30px}
.cta__row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ---------- footer ---------- */
.ftr{border-top:1px solid var(--line);background:var(--bg-2);padding-block:clamp(46px,5vw,68px) 26px;position:relative;z-index:1}
.ftr__top{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:36px;padding-bottom:38px;border-bottom:1px solid var(--line-soft)}
.ftr__brand p{color:var(--muted);font-size:.9rem;max-width:34ch;margin-top:16px}
.ftr h4{font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--dim);margin-bottom:16px;font-weight:500}
.ftr ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.ftr ul a{font-size:.9rem;color:var(--ink-2);transition:.2s var(--ease)}
.ftr ul a:hover{color:var(--coral-2)}
.ftr__btm{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;padding-top:22px;font-family:var(--mono);font-size:11.5px;color:var(--dim)}
.ftr__btm nav{display:flex;gap:20px}

/* ---------- forms ---------- */
.form{display:grid;gap:16px}
.field{display:grid;gap:8px}
.field label{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.field input,.field textarea,.field select{
  width:100%;padding:13px 15px;border-radius:11px;border:1px solid var(--line);
  background:rgba(255,255,255,.025);color:var(--ink);font-family:inherit;font-size:.94rem;
  transition:.22s var(--ease);
}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:rgba(255,95,87,.5);background:rgba(255,255,255,.04);
  box-shadow:0 0 0 4px rgba(255,95,87,.09);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 19px) 21px,calc(100% - 13px) 21px;background-size:6px 6px;background-repeat:no-repeat}
.form__note{font-size:.82rem;color:var(--dim)}
.form__ok,.form__err{
  display:none;padding:13px 16px;border-radius:11px;font-size:.9rem;
}
.form__ok{border:1px solid rgba(43,227,198,.3);background:rgba(43,227,198,.07);color:var(--teal-2)}
.form__err{border:1px solid rgba(255,95,87,.32);background:rgba(255,95,87,.07);color:#ffb09f}
.form__ok.is-on,.form__err.is-on{display:block}

/* 蜜罐字段：屏幕上不可见，但不用 display:none，否则部分机器人会跳过 */
.hp{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* 提交按钮的忙碌态 */
.btn__spin{
  display:none;width:14px;height:14px;border-radius:50%;
  border:2px solid rgba(0,0,0,.22);border-top-color:currentColor;
  animation:spin .7s linear infinite;
}
.btn.is-busy .btn__arrow{display:none}
.btn.is-busy .btn__spin{display:block}
.btn:disabled{opacity:.6;cursor:not-allowed;transform:none!important;box-shadow:none}

/* ---------- page hero (inner pages) ---------- */
.phero{padding-block:clamp(56px,7vw,96px) clamp(36px,4vw,56px);border-bottom:1px solid var(--line)}
.phero h1{margin-bottom:20px;font-size:clamp(2.1rem,4.4vw,3.35rem)}

/* ---------- misc content ---------- */
.kv{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.kv div{background:var(--panel);padding:20px 22px}
.kv dt{font-family:var(--mono);font-size:11px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);margin-bottom:7px}
.kv dd{margin:0;font-size:1rem;color:var(--ink)}

.tl{display:grid;gap:0;border-left:1px solid var(--line);margin-left:8px}
.tl__item{position:relative;padding:0 0 30px 30px}
.tl__item::before{content:"";position:absolute;left:-5px;top:6px;width:9px;height:9px;border-radius:50%;background:var(--coral);box-shadow:0 0 0 4px rgba(255,95,87,.13)}
.tl__item time{font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;color:var(--teal)}
.tl__item h3{font-size:1.02rem;margin:8px 0 7px}
.tl__item p{color:var(--muted);font-size:.92rem}

.faq{display:grid;gap:12px}
.faq details{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);overflow:hidden}
.faq summary{
  list-style:none;cursor:pointer;padding:18px 22px;display:flex;align-items:center;gap:14px;
  font-weight:560;font-size:1rem;transition:.22s var(--ease);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";margin-left:auto;font-family:var(--mono);color:var(--coral-2);font-size:1.2rem;transition:.25s var(--ease)}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq summary:hover{background:rgba(255,255,255,.02)}
.faq p{padding:0 22px 20px;color:var(--muted);font-size:.93rem}

/* ---------- reveal on scroll ---------- */
.rv{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.rv.is-in{opacity:1;transform:none}
.rv-d1{transition-delay:.08s}.rv-d2{transition-delay:.16s}.rv-d3{transition-delay:.24s}.rv-d4{transition-delay:.32s}

/* ---------- responsive ---------- */
@media (max-width:1040px){
  .hero__grid{grid-template-columns:1fr}
  .hero__art{order:-1;max-width:420px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .ftr__top{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .nav{
    position:fixed;inset:74px 0 auto;flex-direction:column;gap:2px;padding:16px var(--pad) 26px;
    background:rgba(5,7,13,.97);backdrop-filter:blur(18px);border-bottom:1px solid var(--line);
    transform:translateY(-14px);opacity:0;pointer-events:none;transition:.28s var(--ease);margin:0;
  }
  .nav.is-open{transform:none;opacity:1;pointer-events:auto}
  .nav a{padding:13px 12px;font-size:1rem}
  .nav a.is-active::after{display:none}
  .burger{display:flex;margin-left:auto}
  .hdr__act .btn{display:none}
  .grid-3,.grid-2,.steps,.split,.kv{grid-template-columns:1fr}
  .sec-head{align-items:flex-start}
}
@media (max-width:560px){
  .stats{grid-template-columns:1fr}
  .ftr__top{grid-template-columns:1fr;gap:28px}
  .hero__badge{width:120px;height:120px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .rv{opacity:1;transform:none}
}