:root{
  --vk-deep-blue:#0B1D3A;
  --vk-gold:#F2C14E;
  --vk-red:#E74C3C;
  --vk-stone:#7F8C8D;
  --vk-teal:#3D8B7E;
  --vk-terracotta:#C67C5B;
  --vk-cream:#F2EFE4;
  --vk-dark:#1A1A1A;
  --vk-black:#050D1A;
  --vk-link:#4A90E2;
  --vk-font-body:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --vk-font-mono:"Roboto Mono","Courier New",ui-monospace,monospace;
  --vk-container:1200px;
  --vk-header-h:74px;
}

*,
*::before,
*::after{
  box-sizing:border-box;
  margin:0;
  padding:0;
}

html{
  scroll-behavior:smooth;
}

body{
  font-family:var(--vk-font-body);
  background:var(--vk-deep-blue);
  color:var(--vk-dark);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

img,
svg,
video{
  max-width:100%;
  display:block;
}

a{
  color:inherit;
  text-decoration-thickness:1px;
  text-underline-offset:3px;
}

ul,
ol{
  list-style:none;
}

button{
  font:inherit;
}

:focus-visible{
  outline:3px solid var(--vk-gold);
  outline-offset:2px;
}

#main-content{
  scroll-margin-top:100px;
}

.vk-mono{
  font-family:var(--vk-font-mono);
  font-variant-numeric:tabular-nums;
}

.vk-container{
  max-width:var(--vk-container);
  margin-inline:auto;
  padding-inline:24px;
}

.vk-main{
  background:var(--vk-cream);
  color:var(--vk-dark);
  min-height:60vh;
  position:relative;
}

.vk-main::before{
  content:"";
  display:block;
  height:8px;
  background:linear-gradient(90deg,var(--vk-gold) 0 25%,var(--vk-terracotta) 25% 50%,var(--vk-deep-blue) 50% 75%,var(--vk-teal) 75% 100%);
}

@media (min-width:1025px){
  .vk-main{
    margin:28px 24px 24px;
    border:3px solid var(--vk-black);
    box-shadow:10px 10px 0 rgba(5,13,26,0.18);
  }
}

.vk-skip{
  position:absolute;
  left:-9999px;
  top:0;
  z-index:2000;
}

.vk-skip:focus{
  left:8px;
  top:8px;
  background:var(--vk-gold);
  color:var(--vk-deep-blue);
  padding:12px 20px;
  font-weight:700;
  text-decoration:none;
  box-shadow:4px 4px 0 var(--vk-black);
}

.vk-header{
  position:relative;
  z-index:100;
  background:var(--vk-deep-blue);
  color:var(--vk-cream);
}

.vk-header__bar{
  background:var(--vk-black);
  border-bottom:1px solid rgba(242,193,78,0.4);
}

.vk-header__bar-inner{
  max-width:var(--vk-container);
  margin-inline:auto;
  padding:6px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:28px;
  font-size:12px;
}

.vk-header__sys{
  color:rgba(242,239,228,0.55);
  letter-spacing:0.08em;
}

.vk-header__status{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--vk-cream);
  font-weight:600;
  letter-spacing:0.04em;
}

.vk-dot{
  display:inline-block;
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--vk-gold);
  box-shadow:0 0 0 2px rgba(242,193,78,0.3);
}

.vk-dot--gold{
  background:var(--vk-gold);
  box-shadow:0 0 0 2px rgba(242,193,78,0.3);
}

.vk-dot--online{
  background:var(--vk-teal);
  box-shadow:0 0 0 2px rgba(61,139,126,0.3);
}

.vk-header__main{
  border-bottom:4px solid var(--vk-gold);
  box-shadow:0 4px 0 rgba(5,13,26,0.25);
}

.vk-header__inner{
  max-width:var(--vk-container);
  margin-inline:auto;
  padding-inline:24px;
  display:flex;
  align-items:center;
  gap:24px;
  min-height:var(--vk-header-h);
}

.vk-brand{
  position:relative;
  display:inline-flex;
  flex-direction:column;
  justify-content:center;
  text-decoration:none;
  line-height:1.15;
  flex-shrink:0;
}

.vk-brand::after{
  content:"";
  position:absolute;
  right:-12px;
  top:8%;
  bottom:8%;
  width:1px;
  background:rgba(242,239,228,0.2);
}

.vk-brand--footer::after{
  display:none;
}

.vk-brand__name{
  font-weight:900;
  font-size:26px;
  color:var(--vk-cream);
  letter-spacing:0.02em;
}

.vk-brand__em{
  color:var(--vk-gold);
}

.vk-brand__tag{
  font-size:10px;
  letter-spacing:0.18em;
  color:rgba(242,239,228,0.5);
  text-transform:uppercase;
}

.vk-nav{
  display:flex;
  align-items:center;
  margin-inline:auto;
}

.vk-nav__list{
  display:flex;
  align-items:center;
  gap:2px;
}

.vk-nav__link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 14px;
  color:rgba(242,239,228,0.78);
  font-size:15px;
  font-weight:600;
  text-decoration:none;
  border-bottom:4px solid transparent;
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}

.vk-nav__link:hover{
  color:var(--vk-cream);
  background:rgba(242,193,78,0.08);
}

.vk-nav__link[aria-current="page"]{
  color:var(--vk-gold);
  border-bottom-color:var(--vk-gold);
}

.vk-nav__index{
  font-size:11px;
  color:var(--vk-gold);
  opacity:0.65;
  line-height:1;
}

.vk-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 22px;
  font-weight:700;
  border:3px solid var(--vk-black);
  text-decoration:none;
  cursor:pointer;
  transition:transform .15s ease,box-shadow .15s ease,background-color .15s ease,border-color .15s ease;
}

.vk-btn--gold{
  background:var(--vk-gold);
  color:var(--vk-deep-blue);
  box-shadow:4px 4px 0 var(--vk-black);
}

.vk-btn--gold:hover{
  transform:translate(-2px,-2px);
  box-shadow:6px 6px 0 var(--vk-black);
}

.vk-btn--ghost{
  background:transparent;
  color:var(--vk-cream);
  border-color:rgba(242,239,228,0.5);
  box-shadow:4px 4px 0 rgba(5,13,26,0.25);
}

.vk-btn--ghost:hover{
  border-color:var(--vk-cream);
  color:#ffffff;
}

.vk-header__login{
  flex-shrink:0;
}

.vk-nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  background:transparent;
  border:2px solid var(--vk-gold);
  color:var(--vk-gold);
  font-weight:700;
  font-size:14px;
  cursor:pointer;
}

.vk-nav-toggle:hover{
  background:rgba(242,193,78,0.1);
}

.vk-nav-toggle__box{
  display:flex;
  flex-direction:column;
}

.vk-nav-toggle__line{
  display:block;
  width:20px;
  height:2px;
  background:currentColor;
  margin-block:3px;
}

.vk-progress{
  position:fixed;
  top:0;
  left:0;
  height:4px;
  width:0;
  background:linear-gradient(90deg,var(--vk-gold),#ffd87a);
  box-shadow:0 0 10px rgba(242,193,78,0.6);
  z-index:1000;
}

.vk-top{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:900;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 16px;
  background:var(--vk-deep-blue);
  color:var(--vk-gold);
  border:3px solid var(--vk-gold);
  box-shadow:5px 5px 0 rgba(5,13,26,0.35);
  cursor:pointer;
  opacity:0;
  pointer-events:none;
  transform:translateY(10px);
  transition:opacity .2s ease,transform .2s ease;
}

.vk-top[data-visible]{
  opacity:1;
  pointer-events:auto;
  transform:translateY(0);
}

.vk-top__arrow{
  font-size:18px;
  line-height:1;
}

.vk-footer{
  background:var(--vk-deep-blue);
  color:rgba(242,239,228,0.82);
}

.vk-footer__frame{
  max-width:var(--vk-container);
  margin-inline:auto;
  padding:56px 24px 40px;
  display:grid;
  grid-template-columns:1.6fr 1fr 1.1fr 1fr;
  gap:40px;
}

.vk-footer__brand .vk-brand{
  padding-right:0;
}

.vk-footer__desc{
  font-size:14px;
  line-height:1.7;
  margin:12px 0 16px;
  max-width:34em;
  color:rgba(242,239,228,0.7);
}

.vk-footer__cert{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border:1px solid rgba(242,193,78,0.45);
  font-size:12px;
  letter-spacing:0.08em;
  color:var(--vk-gold);
  background:rgba(242,193,78,0.06);
}

.vk-footer__title{
  font-size:14px;
  font-weight:700;
  letter-spacing:0.12em;
  color:var(--vk-cream);
  margin-bottom:16px;
  display:flex;
  align-items:center;
  gap:8px;
  text-transform:uppercase;
}

.vk-footer__title .vk-mono{
  color:var(--vk-gold);
}

.vk-footer__list{
  display:flex;
  flex-direction:column;
  gap:10px;
}

.vk-footer__link{
  color:rgba(242,239,228,0.68);
  text-decoration:none;
  font-size:15px;
  transition:color .2s ease;
}

.vk-footer__link:hover{
  color:var(--vk-gold);
}

.vk-footer__list--contact li{
  display:flex;
  flex-direction:column;
  gap:2px;
}

.vk-footer__meta{
  font-size:10px;
  letter-spacing:0.16em;
  color:rgba(242,193,78,0.7);
}

.vk-footer__text{
  font-size:15px;
  color:rgba(242,239,228,0.85);
}

.vk-footer__service-note{
  margin-top:16px;
  padding:10px 12px;
  background:rgba(242,193,78,0.08);
  border-left:3px solid var(--vk-gold);
  font-size:12px;
  line-height:1.6;
  color:rgba(242,239,228,0.75);
}

.vk-footer__bottom{
  background:var(--vk-black);
  border-top:1px solid rgba(242,193,78,0.3);
}

.vk-footer__bottom::before{
  content:"";
  display:block;
  height:4px;
  background:repeating-linear-gradient(90deg,var(--vk-gold) 0 18px,transparent 18px 24px,var(--vk-deep-blue) 24px 36px,transparent 36px 42px);
  opacity:0.7;
}

.vk-footer__inner{
  max-width:var(--vk-container);
  margin-inline:auto;
  padding:18px 24px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:8px 16px;
  font-size:13px;
  color:rgba(242,239,228,0.6);
}

.vk-footer__icp{
  font-size:12px;
  letter-spacing:0.08em;
  color:rgba(242,239,228,0.5);
}

.vk-page-head{
  padding:40px 0 24px;
}

.vk-page-title{
  font-size:clamp(28px,4vw,44px);
  font-weight:900;
  line-height:1.2;
  letter-spacing:-0.02em;
  color:var(--vk-deep-blue);
}

.vk-page-lead{
  font-size:17px;
  color:#4a5560;
  max-width:56em;
  margin-top:10px;
}

.vk-breadcrumb{
  margin-bottom:16px;
}

.vk-breadcrumb__list{
  display:flex;
  flex-wrap:wrap;
  gap:6px 12px;
  font-size:13px;
}

.vk-breadcrumb__list li::before{
  content:"/";
  margin-right:8px;
  color:var(--vk-stone);
}

.vk-breadcrumb__list li:first-child::before{
  content:"";
  margin:0;
}

.vk-breadcrumb__link{
  color:var(--vk-stone);
  text-decoration:none;
}

.vk-breadcrumb__link:hover{
  color:var(--vk-link);
}

.vk-breadcrumb__current{
  color:var(--vk-deep-blue);
  font-weight:600;
}

.vk-card{
  background:var(--vk-cream);
  border:3px solid var(--vk-deep-blue);
  box-shadow:6px 6px 0 rgba(5,13,26,0.2);
  padding:24px;
}

.vk-card--dark{
  background:var(--vk-deep-blue);
  color:var(--vk-cream);
  border-color:var(--vk-black);
}

.vk-card--gold{
  background:var(--vk-gold);
  color:var(--vk-dark);
  border-color:var(--vk-deep-blue);
}

.vk-card--terracotta{
  background:var(--vk-terracotta);
  color:var(--vk-dark);
  border-color:var(--vk-deep-blue);
}

.vk-grid{
  display:grid;
  gap:24px;
}

.vk-grid--2,
.vk-grid--3,
.vk-grid--4{
  grid-template-columns:1fr;
}

@media (min-width:700px){
  .vk-grid--2{
    grid-template-columns:repeat(2,1fr);
  }

  .vk-grid--4{
    grid-template-columns:repeat(2,1fr);
  }
}

@media (min-width:900px){
  .vk-grid--3{
    grid-template-columns:repeat(3,1fr);
  }

  .vk-grid--4{
    grid-template-columns:repeat(4,1fr);
  }
}

.vk-tag{
  display:inline-flex;
  align-items:center;
  padding:7px 14px;
  font-size:14px;
  font-weight:600;
  color:var(--vk-deep-blue);
  background:transparent;
  border:2px solid var(--vk-deep-blue);
  cursor:pointer;
  transition:background .2s ease,color .2s ease;
  text-decoration:none;
}

.vk-tag:hover{
  background:rgba(11,29,58,0.08);
}

.vk-tag[data-active]{
  background:var(--vk-deep-blue);
  color:var(--vk-cream);
}

.vk-stat{
  padding:16px;
  border-left:4px solid var(--vk-gold);
}

.vk-stat__num{
  font-family:var(--vk-font-mono);
  font-size:42px;
  font-weight:700;
  line-height:1;
  color:var(--vk-deep-blue);
}

.vk-stat__label{
  margin-top:8px;
  font-size:13px;
  color:var(--vk-stone);
  letter-spacing:0.06em;
}

.vk-band{
  border-block:3px solid var(--vk-deep-blue);
  background:var(--vk-cream);
  padding-block:12px;
}

@media (max-width:1024px){
  .vk-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    display:none;
    background:var(--vk-deep-blue);
    border-top:3px solid var(--vk-gold);
    border-bottom:3px solid var(--vk-gold);
    box-shadow:0 12px 16px rgba(5,13,26,0.35);
    max-height:calc(100vh - 80px);
    overflow-y:auto;
  }

  .vk-nav[data-open]{
    display:block;
  }

  .vk-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
  }

  .vk-nav__item{
    border-bottom:1px solid rgba(242,239,228,0.12);
  }

  .vk-nav__item:last-of-type{
    border-bottom:none;
  }

  .vk-nav__link{
    width:100%;
    padding:16px 24px;
    border-bottom:none;
    border-left:4px solid transparent;
    justify-content:flex-start;
  }

  .vk-nav__link[aria-current="page"]{
    border-left-color:var(--vk-gold);
    background:rgba(242,193,78,0.08);
  }

  .vk-nav-toggle{
    display:inline-flex;
  }

  .vk-header__login{
    margin-left:auto;
  }
}

@media (max-width:1200px) and (min-width:1025px){
  .vk-nav__link{
    padding:12px 10px;
    font-size:14px;
  }

  .vk-header__inner{
    gap:16px;
  }
}

@media (max-width:768px){
  .vk-header__sys{
    display:none;
  }

  .vk-header__inner{
    padding-inline:16px;
    min-height:60px;
  }

  .vk-header__bar-inner{
    padding-inline:16px;
    min-height:24px;
  }

  .vk-header__login{
    padding:8px 14px;
    font-size:14px;
  }

  .vk-container{
    padding-inline:16px;
  }

  .vk-footer__frame{
    grid-template-columns:1fr 1fr;
    gap:28px;
    padding:40px 16px 32px;
  }

  .vk-footer__inner{
    padding-inline:16px;
  }

  .vk-top{
    right:16px;
    bottom:16px;
    padding:8px 12px;
  }
}

@media (max-width:560px){
  .vk-brand__tag{
    display:none;
  }

  .vk-brand__name{
    font-size:22px;
  }

  .vk-nav-toggle{
    padding:7px 10px;
  }

  .vk-nav-toggle__label{
    display:none;
  }

  .vk-footer__frame{
    grid-template-columns:1fr;
  }
}

@media (prefers-reduced-motion:reduce){
  html{
    scroll-behavior:auto;
  }

  *,
  *::before,
  *::after{
    animation-duration:0.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:0.01ms !important;
  }
}