.qt-about{
  --qt-about-ink:#0f172a;
  --qt-about-ink2:#161d48;
  --qt-about-muted:#65708f;
  --qt-about-line:rgba(106,126,255,.16);
  --qt-about-brand:#6a7eff;
  --qt-about-brand2:#9aa8ff;
  --qt-about-shell:1180px;

  min-height:100vh;
  padding:18px 12px 54px;
  color:var(--qt-about-ink);
  font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  background:
    radial-gradient(920px 320px at 50% -160px, rgba(106,126,255,.14), transparent 62%),
    radial-gradient(620px 240px at 14% 0%, rgba(159,174,255,.11), transparent 58%),
    linear-gradient(180deg, #f6f8ff 0%, #fff 74%);
  -webkit-font-smoothing:antialiased;
  overflow-x:clip;
}

.qt-about,
.qt-about *{
  box-sizing:border-box;
}

.qt-about :where(h1,h2,h3,h4,p){
  margin:0;
}

.qt-about :where(a){
  color:inherit;
  text-decoration:none;
}

.qt-about-shell{
  width:min(var(--qt-about-shell), 100%);
  margin:0 auto;
}

.qt-about-breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  margin:0 0 12px;
  color:var(--qt-about-muted);
  font-size:12px;
  font-weight:850;
}

.qt-about-breadcrumb__link{
  color:var(--qt-about-brand);
}

.qt-about-breadcrumb__sep{
  opacity:.55;
}

.qt-about-breadcrumb__current{
  color:var(--qt-about-muted);
}

.qt-about-hero{
  position:relative;
  overflow:hidden;
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  align-items:center;
  gap:16px;
  margin-bottom:14px;
  padding:16px;
  border:1px solid var(--qt-about-line);
  border-radius:28px;
  background:
    radial-gradient(520px 180px at 0 0, rgba(106,126,255,.11), transparent 62%),
    linear-gradient(180deg, rgba(255,255,255,.96), rgba(248,250,255,.88));
  box-shadow:
    0 14px 34px rgba(15,23,42,.08),
    inset 0 0 0 1px rgba(255,255,255,.82);
}

.qt-about-hero::after{
  content:"";
  position:absolute;
  right:-42px;
  top:-60px;
  width:180px;
  height:180px;
  border-radius:999px;
  background:linear-gradient(135deg, rgba(106,126,255,.20), rgba(255,255,255,0));
  pointer-events:none;
}

.qt-about-hero__icon{
  position:relative;
  z-index:1;
  width:56px;
  height:56px;
  display:grid;
  place-items:center;
  border-radius:19px;
  color:#fff;
  background:linear-gradient(135deg,var(--qt-about-brand),var(--qt-about-brand2));
  box-shadow:0 14px 26px rgba(106,126,255,.22);
}

.qt-about-hero__icon svg{
  width:25px;
  height:25px;
  display:block;
  color:currentColor;
}

.qt-about-hero__text{
  position:relative;
  z-index:1;
  min-width:0;
}

.qt-about-title{
  margin:0 0 5px;
  color:var(--qt-about-ink2);
  font-size:clamp(25px,3.2vw,38px);
  line-height:1.05;
  font-weight:1000;
  letter-spacing:-.055em;
}

.qt-about-text{
  max-width:76ch;
  color:var(--qt-about-muted);
  font-size:14px;
  line-height:1.6;
  font-weight:750;
}

.qt-about-layout{
  display:grid;
  grid-template-columns:286px minmax(0,1fr);
  gap:14px;
  align-items:start;
}

.qt-about-side{
  position:sticky;
  top:92px;
}

.qt-about-sideBox,
.qt-about-article,
.qt-about-contact{
  border:1px solid var(--qt-about-line);
  border-radius:26px;
  background:linear-gradient(180deg, rgba(255,255,255,.97), rgba(248,250,255,.90));
  box-shadow:
    0 12px 30px rgba(15,23,42,.07),
    inset 0 0 0 1px rgba(255,255,255,.80);
}

.qt-about-sideBox{
  padding:13px;
}

.qt-about-sideTitle{
  margin:0 0 10px;
  padding:2px 3px 0;
  color:var(--qt-about-ink2);
  font-size:14px;
  line-height:1.25;
  font-weight:1000;
  letter-spacing:-.02em;
}

.qt-about-nav{
  display:grid;
  gap:7px;
}

.qt-about-nav__link{
  display:grid;
  grid-template-columns:24px minmax(0,1fr);
  align-items:center;
  gap:9px;
  min-height:46px;
  padding:9px;
  border:1px solid rgba(15,23,42,.075);
  border-radius:15px;
  background:rgba(255,255,255,.72);
  color:var(--qt-about-ink2);
  transition:transform .15s ease, background .15s ease, border-color .15s ease, box-shadow .15s ease, color .15s ease;
}

.qt-about-nav__link:hover{
  transform:translateX(1px);
  background:#fff;
  border-color:rgba(106,126,255,.16);
}

.qt-about-nav__link.is-active{
  color:#fff;
  border-color:transparent;
  background:
    radial-gradient(160px 60px at 0 0, rgba(255,255,255,.18), transparent 70%),
    linear-gradient(135deg,var(--qt-about-brand),var(--qt-about-brand2));
  box-shadow:0 12px 24px rgba(106,126,255,.22);
}

.qt-about-nav__num{
  width:24px;
  height:24px;
  display:grid;
  place-items:center;
  border-radius:9px;
  color:var(--qt-about-brand);
  background:rgba(106,126,255,.09);
  font-size:10px;
  line-height:1;
  font-weight:1000;
}

.qt-about-nav__link.is-active .qt-about-nav__num{
  color:#fff;
  background:rgba(255,255,255,.16);
}

.qt-about-nav__text{
  min-width:0;
  font-size:13px;
  line-height:1.25;
  font-weight:950;
  overflow-wrap:anywhere;
}

.qt-about-main{
  min-width:0;
}

.qt-about-article{
  overflow:hidden;
  padding:0;
}

.qt-about-block{
  scroll-margin-top:106px;
  padding:22px;
}

.qt-about-block + .qt-about-block{
  border-top:1px solid rgba(15,23,42,.07);
}

.qt-about-block__head{
  display:grid;
  grid-template-columns:42px minmax(0,1fr);
  align-items:center;
  gap:12px;
  margin-bottom:12px;
}

.qt-about-block__num{
  width:42px;
  height:42px;
  display:grid;
  place-items:center;
  border-radius:14px;
  color:var(--qt-about-brand);
  background:rgba(106,126,255,.10);
  border:1px solid rgba(106,126,255,.12);
  font-size:12px;
  line-height:1;
  font-weight:1000;
}

.qt-about-sectionTitle{
  color:var(--qt-about-ink2);
  font-size:24px;
  line-height:1.08;
  letter-spacing:-.04em;
  font-weight:1000;
}

.qt-about-sectionBody{
  display:grid;
  gap:11px;
}

.qt-about-sectionBody p{
  color:#465772;
  font-size:14.3px;
  line-height:1.85;
  font-weight:760;
}

.qt-about-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:9px;
  margin-top:3px;
}

.qt-about-listItem{
  display:grid;
  grid-template-columns:22px minmax(0,1fr);
  gap:9px;
  align-items:flex-start;
  padding:12px;
  border:1px solid rgba(106,126,255,.10);
  border-radius:16px;
  background:rgba(106,126,255,.055);
}

.qt-about-listMark{
  width:22px;
  height:22px;
  display:grid;
  place-items:center;
  border-radius:999px;
  background:linear-gradient(135deg,var(--qt-about-brand),var(--qt-about-brand2));
  color:#fff;
  font-size:12px;
  line-height:1;
  font-weight:1000;
}

.qt-about-listText{
  min-width:0;
  color:var(--qt-about-ink2);
  font-size:13px;
  line-height:1.6;
  font-weight:850;
}

.qt-about-note{
  display:grid;
  grid-template-columns:34px minmax(0,1fr);
  gap:11px;
  align-items:flex-start;
  padding:14px;
  border:1px dashed rgba(106,126,255,.22);
  border-radius:18px;
  background:
    radial-gradient(420px 120px at 0 0, rgba(106,126,255,.10), transparent 64%),
    rgba(255,255,255,.78);
  margin-top:4px;
}

.qt-about-note__icon{
  width:34px;
  height:34px;
  display:grid;
  place-items:center;
  border-radius:13px;
  background:linear-gradient(135deg,var(--qt-about-brand),var(--qt-about-brand2));
  color:#fff;
  font-size:14px;
  font-weight:1000;
}

.qt-about-note__text{
  color:var(--qt-about-ink2);
  font-size:13px;
  line-height:1.7;
  font-weight:850;
}

.qt-about-contact{
  position:relative;
  overflow:hidden;
  margin-top:4px;
  padding:17px;
}

.qt-about-contact::after{
  content:"";
  position:absolute;
  right:-34px;
  top:-40px;
  width:132px;
  height:132px;
  border-radius:999px;
  background:linear-gradient(135deg, rgba(106,126,255,.16), transparent);
  pointer-events:none;
}

.qt-about-contact__copy,
.qt-about-contact__actions{
  position:relative;
  z-index:1;
}

.qt-about-contact__title{
  color:var(--qt-about-ink2);
  font-size:18px;
  line-height:1.18;
  font-weight:1000;
  letter-spacing:-.025em;
}

.qt-about-contact__text{
  margin-top:7px;
  max-width:72ch;
  color:var(--qt-about-muted);
  font-size:13px;
  line-height:1.68;
  font-weight:800;
}

.qt-about-contact__actions{
  display:flex;
  flex-wrap:wrap;
  gap:9px;
  margin-top:13px;
}

.qt-about-contact__btn{
  min-height:42px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:0 15px;
  border-radius:14px;
  font-size:13px;
  line-height:1;
  font-weight:950;
  transition:transform .14s ease, filter .14s ease, box-shadow .14s ease;
}

.qt-about-contact__btn:hover{
  transform:translateY(-1px);
}

.qt-about-contact__btn--primary{
  color:#fff;
  background:linear-gradient(135deg,var(--qt-about-brand),var(--qt-about-brand2));
  box-shadow:0 12px 24px rgba(106,126,255,.18);
}

.qt-about-contact__btn--ghost{
  color:var(--qt-about-ink2);
  background:#fff;
  border:1px solid rgba(106,126,255,.18);
}

@media (max-width:1040px){
  .qt-about-layout{
    grid-template-columns:1fr;
  }

  .qt-about-side{
    position:static;
  }

  .qt-about-nav{
    grid-template-columns:repeat(3,minmax(0,1fr));
  }
}

@media (max-width:760px){
  .qt-about{
    padding:12px 10px 40px;
  }

  .qt-about-breadcrumb{
    margin-bottom:10px;
    font-size:11.5px;
  }

  .qt-about-hero{
    grid-template-columns:auto minmax(0,1fr);
    gap:12px;
    padding:13px;
    border-radius:23px;
  }

  .qt-about-hero__icon{
    width:48px;
    height:48px;
    border-radius:16px;
  }

  .qt-about-hero__icon svg{
    width:23px;
    height:23px;
  }

  .qt-about-title{
    font-size:24px;
  }

  .qt-about-text{
    font-size:12.8px;
    line-height:1.55;
  }

  .qt-about-layout{
    gap:12px;
  }

  .qt-about-side{
    display:none;
  }

  .qt-about-block{
    padding:17px 13px;
  }

  .qt-about-block__head{
    grid-template-columns:36px minmax(0,1fr);
    gap:10px;
  }

  .qt-about-block__num{
    width:36px;
    height:36px;
    border-radius:12px;
    font-size:11px;
  }

  .qt-about-sectionTitle{
    font-size:21px;
  }

  .qt-about-sectionBody p{
    font-size:13.4px;
    line-height:1.78;
  }

  .qt-about-list{
    grid-template-columns:1fr;
  }

  .qt-about-listItem{
    padding:11px;
    border-radius:15px;
  }

  .qt-about-note{
    grid-template-columns:30px minmax(0,1fr);
    padding:12px;
    border-radius:16px;
  }

  .qt-about-note__icon{
    width:30px;
    height:30px;
    border-radius:11px;
  }

  .qt-about-note__text,
  .qt-about-listText{
    font-size:12.8px;
  }

  .qt-about-contact{
    padding:14px;
    border-radius:20px;
  }

  .qt-about-contact__actions{
    display:grid;
    grid-template-columns:1fr;
  }

  .qt-about-contact__btn{
    width:100%;
  }
}

@media (prefers-reduced-motion:reduce){
  .qt-about *,
  .qt-about *::before,
  .qt-about *::after{
    animation:none !important;
    transition:none !important;
  }
}